Refactor processors

src/Backend/DiunaBI.Plugins.Morska/Importers/MorskaD1Importer.cs

@@ -26,6 +26,10 @@ public class MorskaD1Importer : MorskaBaseImporter
     private DateTime? EndDate { get; set; }
     private bool IsEnabled { get; set; }
 
+    // Cache for sheet data
+    private IList<IList<object>>? _cachedSheetData;
+    private string? _cachedDataKey;
+
     public MorskaD1Importer(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -43,6 +47,10 @@ public class MorskaD1Importer : MorskaBaseImporter
             _logger.LogInformation("{ImporterType}: Starting import for {ImportWorkerName} ({ImportWorkerId})", 
                 ImporterType, importWorker.Name, importWorker.Id);
 
+            // ✅ Clear cache at start
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+
             LoadConfiguration(importWorker);
             
             if (!ShouldPerformImport(importWorker))
@@ -65,6 +73,46 @@ public class MorskaD1Importer : MorskaBaseImporter
                 ImporterType, importWorker.Name, importWorker.Id);
             throw;
         }
+        finally
+        {
+            // ✅ Clear cache after import
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+        }
+    }
+
+    // ✅ Dodaj metodę cache
+    private IList<IList<object>>? GetSheetData()
+    {
+        var currentDataKey = $"{SheetId}#{SheetTabName}#{DataRange}";
+        
+        if (_cachedSheetData != null && _cachedDataKey == currentDataKey)
+        {
+            _logger.LogDebug("{ImporterType}: Using cached sheet data for {DataKey}",
+                ImporterType, currentDataKey);
+            return _cachedSheetData;
+        }
+
+        try
+        {
+            _logger.LogDebug("{ImporterType}: Fetching data from Google Sheets API for {DataKey}",
+                ImporterType, currentDataKey);
+
+            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
+            _cachedSheetData = dataRangeResponse.Values;
+            _cachedDataKey = currentDataKey;
+
+            _logger.LogDebug("{ImporterType}: Cached {RowCount} rows from Google Sheet",
+                ImporterType, _cachedSheetData?.Count ?? 0);
+
+            return _cachedSheetData;
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ImporterType}: Error fetching data from Google Sheet {SheetId}",
+                ImporterType, SheetId);
+            throw;
+        }
     }
 
     private void LoadConfiguration(Layer importWorker)
@@ -164,8 +212,8 @@ public class MorskaD1Importer : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            // ✅ Użyj cache zamiast bezpośredniego API
+            var data = GetSheetData();
 
             if (data == null || data.Count < 2)
             {
@@ -239,10 +287,10 @@ public class MorskaD1Importer : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            // ✅ Użyj cache zamiast bezpośredniego API
+            var data = GetSheetData();
 
-            _logger.LogDebug("{ImporterType}: Retrieved {RowCount} rows from Google Sheet", 
+            _logger.LogDebug("{ImporterType}: Using data with {RowCount} rows from cache", 
                 ImporterType, data?.Count ?? 0);
 
             var newRecords = (from t in data
@@ -279,8 +327,7 @@ public class MorskaD1Importer : MorskaBaseImporter
         }
         catch (Exception e)
         {
-            _logger.LogError(e, "{ImporterType}: Error importing data from Google Sheet {SheetId}", 
-                ImporterType, SheetId);
+            _logger.LogError(e, "{ImporterType}: Error importing data from cached sheet data", ImporterType);
             throw;
         }
     }

src/Backend/DiunaBI.Plugins.Morska/Importers/MorskaFK2Importer.cs

@@ -26,6 +26,10 @@ public class MorskaFk2Importer : MorskaBaseImporter
     private DateTime? EndDate { get; set; }
     private bool IsEnabled { get; set; }
 
+    // Cache for sheet data
+    private IList<IList<object>>? _cachedSheetData;
+    private string? _cachedDataKey;
+
     public MorskaFk2Importer(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -43,6 +47,10 @@ public class MorskaFk2Importer : MorskaBaseImporter
             _logger.LogInformation("{ImporterType}: Starting import for {ImportWorkerName} ({ImportWorkerId})", 
                 ImporterType, importWorker.Name, importWorker.Id);
 
+            // ✅ Clear cache at start
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+
             LoadConfiguration(importWorker);
             
             if (!ShouldPerformImport(importWorker))
@@ -65,6 +73,46 @@ public class MorskaFk2Importer : MorskaBaseImporter
                 ImporterType, importWorker.Name, importWorker.Id);
             throw;
         }
+        finally
+        {
+            // ✅ Clear cache after import
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+        }
+    }
+
+    // ✅ Dodaj metodę cache
+    private IList<IList<object>>? GetSheetData()
+    {
+        var currentDataKey = $"{SheetId}#{SheetTabName}#{DataRange}";
+        
+        if (_cachedSheetData != null && _cachedDataKey == currentDataKey)
+        {
+            _logger.LogDebug("{ImporterType}: Using cached sheet data for {DataKey}",
+                ImporterType, currentDataKey);
+            return _cachedSheetData;
+        }
+
+        try
+        {
+            _logger.LogDebug("{ImporterType}: Fetching data from Google Sheets API for {DataKey}",
+                ImporterType, currentDataKey);
+
+            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
+            _cachedSheetData = dataRangeResponse.Values;
+            _cachedDataKey = currentDataKey;
+
+            _logger.LogDebug("{ImporterType}: Cached {RowCount} rows from Google Sheet",
+                ImporterType, _cachedSheetData?.Count ?? 0);
+
+            return _cachedSheetData;
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ImporterType}: Error fetching data from Google Sheet {SheetId}",
+                ImporterType, SheetId);
+            throw;
+        }
     }
 
     private void LoadConfiguration(Layer importWorker)
@@ -164,8 +212,8 @@ public class MorskaFk2Importer : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            // ✅ Użyj cache zamiast bezpośredniego API
+            var data = GetSheetData();
 
             if (data == null || data.Count == 0)
             {
@@ -256,10 +304,10 @@ public class MorskaFk2Importer : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            // ✅ Użyj cache zamiast bezpośredniego API
+            var data = GetSheetData();
 
-            _logger.LogDebug("{ImporterType}: Retrieved {RowCount} rows from Google Sheet", 
+            _logger.LogDebug("{ImporterType}: Using data with {RowCount} rows from cache", 
                 ImporterType, data?.Count ?? 0);
 
             if (data != null)
@@ -315,8 +363,7 @@ public class MorskaFk2Importer : MorskaBaseImporter
         }
         catch (Exception e)
         {
-            _logger.LogError(e, "{ImporterType}: Error importing data from Google Sheet {SheetId}", 
-                ImporterType, SheetId);
+            _logger.LogError(e, "{ImporterType}: Error importing data from cached sheet data", ImporterType);
             throw;
         }
     }

src/Backend/DiunaBI.Plugins.Morska/Importers/MorskaStandardImporter.cs

@@ -7,13 +7,13 @@ using DiunaBI.Core.Database.Context;
 
 namespace DiunaBI.Plugins.Morska.Importers;
 
-public class MorskaImporter : MorskaBaseImporter
+public class MorskaStandardImporter : MorskaBaseImporter
 {
     public override string ImporterType => "Morska.Import.Standard";
 
     private readonly AppDbContext _db;
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
-    private readonly ILogger<MorskaImporter> _logger;
+    private readonly ILogger<MorskaStandardImporter> _logger;
 
     // Configuration properties
     private string? SheetId { get; set; }
@@ -26,10 +26,13 @@ public class MorskaImporter : MorskaBaseImporter
     private DateTime? EndDate { get; set; }
     private bool IsEnabled { get; set; }
 
-    public MorskaImporter(
+    private IList<IList<object>>? _cachedSheetData;
+    private string? _cachedDataKey; 
+
+    public MorskaStandardImporter(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
-        ILogger<MorskaImporter> logger)
+        ILogger<MorskaStandardImporter> logger)
     {
         _db = db;
         _googleSheetValues = googleSheetValues;
@@ -43,6 +46,10 @@ public class MorskaImporter : MorskaBaseImporter
             _logger.LogInformation("{ImporterType}: Starting import for {ImportWorkerName} ({ImportWorkerId})",
                 ImporterType, importWorker.Name, importWorker.Id);
 
+            // Clear cache before import
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+
             // Load configuration from layer records
             LoadConfiguration(importWorker);
 
@@ -69,6 +76,45 @@ public class MorskaImporter : MorskaBaseImporter
                 ImporterType, importWorker.Name, importWorker.Id);
             throw;
         }
+        finally
+        {
+            // Clear cache after import
+            _cachedSheetData = null;
+            _cachedDataKey = null;
+        }
+    }
+
+    private IList<IList<object>>? GetSheetData()
+    {
+        var currentDataKey = $"{SheetId}#{SheetTabName}#{DataRange}";
+        
+        if (_cachedSheetData != null && _cachedDataKey == currentDataKey)
+        {
+            _logger.LogDebug("{ImporterType}: Using cached sheet data for {DataKey}",
+                ImporterType, currentDataKey);
+            return _cachedSheetData;
+        }
+
+        try
+        {
+            _logger.LogDebug("{ImporterType}: Fetching data from Google Sheets API for {DataKey}",
+                ImporterType, currentDataKey);
+
+            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
+            _cachedSheetData = dataRangeResponse.Values;
+            _cachedDataKey = currentDataKey;
+
+            _logger.LogDebug("{ImporterType}: Cached {RowCount} rows from Google Sheet",
+                ImporterType, _cachedSheetData?.Count ?? 0);
+
+            return _cachedSheetData;
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ImporterType}: Error fetching data from Google Sheet {SheetId}",
+                ImporterType, SheetId);
+            throw;
+        }
     }
 
     private void LoadConfiguration(Layer importWorker)
@@ -171,14 +217,13 @@ public class MorskaImporter : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(SheetId!, $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            var data = GetSheetData();
 
             if (data == null || data.Count < 2)
             {
                 _logger.LogWarning("{ImporterType}: No data found in sheet for {ImportWorkerName}", 
                     ImporterType, importWorker.Name);
-                return true; // Assume up to date if no data
+                return true;
             }
 
             // Check if the number of columns matches
@@ -199,7 +244,6 @@ public class MorskaImporter : MorskaBaseImporter
                     continue;
                 }
 
-                // Check if the record exists in the database - add null check
                 var existingRecord = newestLayer.Records?.FirstOrDefault(x => x.Code == data[0][i].ToString());
                 if (existingRecord == null || existingRecord.Value1 != value)
                 {
@@ -243,12 +287,9 @@ public class MorskaImporter : MorskaBaseImporter
 
         try
         {
-            var dataRangeResponse = _googleSheetValues.Get(
-                SheetId!,
-                $"{SheetTabName}!{DataRange}").Execute();
-            var data = dataRangeResponse.Values;
+            var data = GetSheetData();
 
-            _logger.LogDebug("{ImporterType}: Retrieved {RowCount} rows from Google Sheet", 
+            _logger.LogDebug("{ImporterType}: Using data with {RowCount} rows from cache", 
                 ImporterType, data?.Count ?? 0);
 
             if (data != null && data.Count >= 2)
@@ -284,8 +325,7 @@ public class MorskaImporter : MorskaBaseImporter
         }
         catch (Exception e)
         {
-            _logger.LogError(e, "{ImporterType}: Error importing data from Google Sheet {SheetId}", 
-                ImporterType, SheetId);
+            _logger.LogError(e, "{ImporterType}: Error importing data from cached sheet data", ImporterType); 
             throw;
         }
     }

src/Backend/DiunaBI.Plugins.Morska/Processors/T1R1Processor.cs

@@ -18,6 +18,12 @@ public class T1R1Processor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T1R1Processor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private List<Record>? Sources { get; set; }
+    private List<Record>? DynamicCodes { get; set; }
+    private string? GoogleSheetName { get; set; }
+
     public T1R1Processor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -27,162 +33,321 @@ public class T1R1Processor : MorskaBaseProcessor
         _googleSheetValues = googleSheetValues;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
-        if (sources!.Count == 0)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load sources
+        Sources = processWorker.Records.Where(x => x.Code == "Source").ToList();
+        if (Sources.Count == 0)
+        {
+            throw new InvalidOperationException("Source records not found");
+        }
+
+        // Load dynamic codes
+        DynamicCodes = processWorker.Records
+            .Where(x => x.Code!.Contains("DynamicCode-"))
+            .OrderBy(x => int.Parse(x.Code!.Split('-')[1]))
+            .ToList();
+
+        // Load Google Sheet name
+        GoogleSheetName = GetRecordValue(processWorker.Records, "GoogleSheetName");
+        if (string.IsNullOrEmpty(GoogleSheetName))
+        {
+            throw new InvalidOperationException("GoogleSheetName record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Sources: {SourceCount}, DynamicCodes: {DynamicCodeCount}, SheetName: {SheetName}",
+            ProcessorType, Year, Sources.Count, DynamicCodes.Count, GoogleSheetName);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Sources == null || Sources.Count == 0) errors.Add("No sources configured");
+        if (string.IsNullOrEmpty(GoogleSheetName)) errors.Add("GoogleSheetName is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year} with {SourceCount} sources",
+            ProcessorType, Year, Sources!.Count);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Process records for each month
+        var newRecords = ProcessAllMonths();
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        // Update Google Sheet report
+        UpdateGoogleSheetReport(processedLayer.Id);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}-R1-T1";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}-R1-T1";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
-        var dynamicCodes = processWorker.Records?.Where(x => x.Code!.Contains("DynamicCode-"))
-            .OrderBy(x => int.Parse(x.Code!.Split('-')[1]))
-            .ToList();
+        return processedLayer;
+    }
 
+    private List<Record> ProcessAllMonths()
+    {
         var newRecords = new List<Record>();
 
         for (var month = 1; month < 14; month++)
         {
-            if (year > DateTime.UtcNow.Year || ((year == DateTime.UtcNow.Year && month > DateTime.UtcNow.Month && month != 13)))
+            // Skip future months (except month 13 which is summary)
+            if (Year > DateTime.UtcNow.Year || 
+                (Year == DateTime.UtcNow.Year && month > DateTime.UtcNow.Month && month != 13))
             {
+                _logger.LogDebug("{ProcessorType}: Skipping future month {Year}/{Month:D2}",
+                    ProcessorType, Year, month);
                 continue;
             }
 
-            var records = new List<Record>();
-            foreach (var source in sources)
-            {
-                var monthCopy = month;
-                var dataSource = _db.Layers.Where(x =>
-                        x.Type == LayerType.Processed &&
-                        !x.IsDeleted && !x.IsCancelled &&
-                        x.Name != null && x.Name.Contains($"{year}/{monthCopy:D2}-{source.Desc1}-T3")
-                    ).Include(x => x.Records)
-                    .AsNoTracking()
-                    .FirstOrDefault();
+            _logger.LogDebug("{ProcessorType}: Processing month {Month} for year {Year}",
+                ProcessorType, month, Year);
 
-                if (dataSource == null)
-                {
-                    throw new Exception($"Source layer {year}/{monthCopy}-{source.Desc1}-T3 not found.");
-                }
+            var monthRecords = ProcessSingleMonth(month);
+            newRecords.AddRange(monthRecords);
 
-                var codesRecord = processWorker.Records?.Where(x => x.Code == $"Codes-{source.Desc1}").FirstOrDefault();
-                if (codesRecord != null)
-                {
-                    var codes = ProcessHelper.ParseCodes(codesRecord.Desc1!);
-                    records.AddRange(dataSource.Records!.Where(x => codes.Contains(int.Parse(x.Code!))));
-                }
-                else
-                {
-                    records.AddRange(dataSource.Records!);
-                }
-            }
-
-            if (dynamicCodes != null)
-            {
-                foreach (var dynamicCode in dynamicCodes)
-                {
-                    try
-                    {
-                        if (dynamicCode.Desc1 == null)
-                        {
-                            _logger.LogWarning("T1R1: Formula in Record {RecordId} is missing. Process: {ProcessName} ({ProcessId})",
-                                dynamicCode.Id, processWorker.Name, processWorker.Id);
-                            continue;
-                        }
-
-                        var calc = new BaseCalc(dynamicCode.Desc1);
-                        if (!calc.IsFormulaCorrect())
-                        {
-                            _logger.LogWarning("T1R1: Formula {Expression} in Record {RecordId} is not correct. Process: {ProcessName} ({ProcessId})",
-                                calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                            continue;
-                        }
-
-                        try
-                        {
-                            records.Add(calc.CalculateT1(records));
-                        }
-                        catch (Exception e)
-                        {
-                            _logger.LogWarning(e, "T1R1: Formula {Expression} in Record {RecordId} calculation error. Process: {ProcessName} ({ProcessId})",
-                                calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                        }
-                    }
-                    catch (Exception e)
-                    {
-                        _logger.LogWarning(e, "T1R1: Calculation error for DynamicCode {RecordId}. Process: {ProcessName} ({ProcessId})",
-                            dynamicCode.Id, processWorker.Name, processWorker.Id);
-                    }
-                }
-            }
-
-            newRecords.AddRange(records.Select(x => new Record
-            {
-                Id = Guid.NewGuid(),
-                Code = $"{x.Code}{month:D2}",
-                CreatedAt = DateTime.UtcNow,
-                ModifiedAt = DateTime.UtcNow,
-                Value1 = x.Value32
-            }
-            ));
+            _logger.LogDebug("{ProcessorType}: Processed {RecordCount} records for month {Month}",
+                ProcessorType, monthRecords.Count, month);
         }
 
-        if (isNew)
+        return newRecords;
+    }
+
+    private List<Record> ProcessSingleMonth(int month)
+    {
+        var records = new List<Record>();
+
+        // Collect records from all sources
+        foreach (var source in Sources!)
+        {
+            var sourceRecords = GetSourceRecords(source, month);
+            records.AddRange(sourceRecords);
+        }
+
+        // Process dynamic codes (calculations)
+        if (DynamicCodes != null && DynamicCodes.Count > 0)
+        {
+            var calculatedRecords = ProcessDynamicCodes(records, month);
+            records.AddRange(calculatedRecords);
+        }
+
+        // Create final records with month suffix
+        var monthRecords = records.Select(x => new Record
+        {
+            Id = Guid.NewGuid(),
+            Code = $"{x.Code}{month:D2}",
+            CreatedAt = DateTime.UtcNow,
+            ModifiedAt = DateTime.UtcNow,
+            Value1 = x.Value32
+        }).ToList();
+
+        return monthRecords;
+    }
+
+    private List<Record> GetSourceRecords(Record source, int month)
+    {
+        var dataSource = _db.Layers
+            .Where(x => x.Type == LayerType.Processed &&
+                       !x.IsDeleted && !x.IsCancelled &&
+                       x.Name != null && x.Name.Contains($"{Year}/{month:D2}-{source.Desc1}-T3"))
+            .Include(x => x.Records)
+            .AsNoTracking()
+            .FirstOrDefault();
+
+        if (dataSource == null)
+        {
+            throw new InvalidOperationException($"Source layer {Year}/{month:D2}-{source.Desc1}-T3 not found");
+        }
+
+        var sourceRecords = new List<Record>();
+
+        // Check if there are specific codes configured for this source
+        var codesRecord = Sources!
+            .Where(x => x.Code == $"Codes-{source.Desc1}")
+            .FirstOrDefault();
+
+        if (codesRecord != null)
+        {
+            var codes = ProcessHelper.ParseCodes(codesRecord.Desc1!);
+            sourceRecords.AddRange(dataSource.Records!
+                .Where(x => codes.Contains(int.Parse(x.Code!))));
+
+            _logger.LogDebug("{ProcessorType}: Using filtered codes for source {Source}: {CodeCount} codes",
+                ProcessorType, source.Desc1, codes.Count);
+        }
+        else
+        {
+            sourceRecords.AddRange(dataSource.Records!);
+
+            _logger.LogDebug("{ProcessorType}: Using all records for source {Source}: {RecordCount} records",
+                ProcessorType, source.Desc1, dataSource.Records!.Count);
+        }
+
+        return sourceRecords;
+    }
+
+    private List<Record> ProcessDynamicCodes(List<Record> records, int month)
+    {
+        var calculatedRecords = new List<Record>();
+
+        foreach (var dynamicCode in DynamicCodes!)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(dynamicCode.Desc1))
+                {
+                    _logger.LogWarning("{ProcessorType}: Formula in Record {RecordId} is missing for month {Month}",
+                        ProcessorType, dynamicCode.Id, month);
+                    continue;
+                }
+
+                var calc = new BaseCalc(dynamicCode.Desc1);
+                if (!calc.IsFormulaCorrect())
+                {
+                    _logger.LogWarning("{ProcessorType}: Formula {Expression} in Record {RecordId} is not correct for month {Month}",
+                        ProcessorType, calc.Expression, dynamicCode.Id, month);
+                    continue;
+                }
+
+                var calculatedRecord = calc.CalculateT1(records);
+                calculatedRecords.Add(calculatedRecord);
+
+                _logger.LogDebug("{ProcessorType}: Successfully calculated dynamic code {Code} for month {Month}, result: {Value}",
+                    ProcessorType, calculatedRecord.Code, month, calculatedRecord.Value32);
+            }
+            catch (Exception e)
+            {
+                _logger.LogWarning(e, "{ProcessorType}: Formula {Expression} calculation error for month {Month}",
+                    ProcessorType, dynamicCode.Desc1, month);
+            }
+        }
+
+        return calculatedRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
+
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        var sheetName = processWorker.Records?.SingleOrDefault(x => x.Code == "GoogleSheetName")?.Desc1;
-        if (sheetName == null)
-        {
-            throw new Exception("GoogleSheetName record not found");
-        }
-
-        UpdateReport(processedLayer.Id, sheetName);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -193,92 +358,139 @@ public class T1R1Processor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
     }
 
-    private void UpdateReport(Guid sourceId, string sheetName)
+    private void UpdateGoogleSheetReport(Guid sourceId)
     {
-        const string sheetId = "1pph-XowjlK5CIaCEV_A5buK4ceJ0Z0YoUlDI4VMkhhA";
-        var request = _googleSheetValues.Get(sheetId, $"{sheetName}!C4:DC4");
-        var response = request.Execute();
+        try
+        {
+            _logger.LogDebug("{ProcessorType}: Updating Google Sheet report {SheetName}",
+                ProcessorType, GoogleSheetName);
 
-        var r1 = _db.Layers
-            .Where(x => x.Id == sourceId)
-            .Include(x => x.Records)
-            .AsNoTracking()
-            .FirstOrDefault();
+            const string sheetId = "1pph-XowjlK5CIaCEV_A5buK4ceJ0Z0YoUlDI4VMkhhA";
             
-        var codesRow = response.Values[0];
+            // Get processed layer data
+            var processedLayer = _db.Layers
+                .Where(x => x.Id == sourceId)
+                .Include(x => x.Records)
+                .AsNoTracking()
+                .FirstOrDefault();
 
+            if (processedLayer == null)
+            {
+                throw new InvalidOperationException($"Processed layer {sourceId} not found");
+            }
+
+            // Get codes from sheet header
+            var codesResponse = _googleSheetValues.Get(sheetId, $"{GoogleSheetName}!C4:DC4").Execute();
+            var codesRow = codesResponse.Values[0];
+
+            // Update monthly data (months 1-12)
+            UpdateMonthlyData(sheetId, codesRow, processedLayer);
+
+            // Update summary row (month 13)
+            UpdateSummaryData(sheetId, codesRow, processedLayer);
+
+            // Update timestamps
+            UpdateTimestamps(sheetId, processedLayer);
+
+            _logger.LogInformation("{ProcessorType}: Successfully updated Google Sheet report {SheetName}",
+                ProcessorType, GoogleSheetName);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to update Google Sheet report {SheetName}",
+                ProcessorType, GoogleSheetName);
+            throw;
+        }
+    }
+
+    private void UpdateMonthlyData(string sheetId, IList<object> codesRow, Layer processedLayer)
+    {
         var valueRange = new ValueRange
         {
             Values = new List<IList<object>>()
         };
 
-        for (var i = 1; i <= 12; i++)
+        // Process months 1-12
+        for (var month = 1; month <= 12; month++)
         {
-            var values = new List<object>();
+            var monthValues = new List<object>();
             foreach (string code in codesRow)
             {
-                var record = r1!.Records?.SingleOrDefault(x => x.Code == $"{code}{i:D2}");
-                if (record != null)
-                {
-                    values.Add(record.Value1!.Value);
-                }
-                else
-                {
-                    values.Add("0");
-                }
+                var record = processedLayer.Records?.SingleOrDefault(x => x.Code == $"{code}{month:D2}");
+                monthValues.Add(record?.Value1?.ToString() ?? "0");
             }
-            valueRange.Values.Add(values);
+            valueRange.Values.Add(monthValues);
         }
 
-        // sum 
-        var valuesSum = new List<object>();
-        var emptyRow = new List<object>();
-        foreach (string code in codesRow)
-        {
-            var record = r1!.Records?.SingleOrDefault(x => x.Code == $"{code}13");
-            emptyRow.Add("");
-            if (record != null)
-            {
-                valuesSum.Add(record.Value1!.Value);
-            }
-            else
-            {
-                valuesSum.Add("0");
-            }
-        }
-
-        valueRange.Values.Add(emptyRow);
-        valueRange.Values.Add(valuesSum);
-
-        var update = _googleSheetValues.Update(valueRange, sheetId, $"{sheetName}!C7:DC20");
-        update.ValueInputOption =
-            SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        var update = _googleSheetValues.Update(valueRange, sheetId, $"{GoogleSheetName}!C7:DC18");
+        update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         update.Execute();
 
-        // update time 
-        var timeUtc = new List<object>
-        {
-            r1!.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-        };
-        var warsawTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Central European Standard Time");
-        var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(r1.ModifiedAt.ToUniversalTime(), warsawTimeZone);
-        var timeWarsaw = new List<object>
-        {
-            warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-        };
-        var valueRangeTime = new ValueRange
+        _logger.LogDebug("{ProcessorType}: Updated monthly data in Google Sheet", ProcessorType);
+    }
+
+    private void UpdateSummaryData(string sheetId, IList<object> codesRow, Layer processedLayer)
+    {
+        var valueRange = new ValueRange
         {
             Values = new List<IList<object>>()
         };
-        valueRangeTime.Values.Add(timeUtc);
-        valueRangeTime.Values.Add(timeWarsaw);
 
-        var updateTimeUtc = _googleSheetValues.Update(valueRangeTime, sheetId, $"{sheetName}!G1:G2");
-        updateTimeUtc.ValueInputOption =
-            SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
-        updateTimeUtc.Execute();
+        // Empty row
+        var emptyRow = new List<object>();
+        for (int i = 0; i < codesRow.Count; i++)
+        {
+            emptyRow.Add("");
+        }
+        valueRange.Values.Add(emptyRow);
+
+        // Summary row (month 13)
+        var summaryValues = new List<object>();
+        foreach (string code in codesRow)
+        {
+            var record = processedLayer.Records?.SingleOrDefault(x => x.Code == $"{code}13");
+            summaryValues.Add(record?.Value1?.ToString() ?? "0");
+        }
+        valueRange.Values.Add(summaryValues);
+
+        var update = _googleSheetValues.Update(valueRange, sheetId, $"{GoogleSheetName}!C19:DC20");
+        update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        update.Execute();
+
+        _logger.LogDebug("{ProcessorType}: Updated summary data in Google Sheet", ProcessorType);
+    }
+
+    private void UpdateTimestamps(string sheetId, Layer processedLayer)
+    {
+        var timeUtc = processedLayer.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
+        
+        var warsawTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Central European Standard Time");
+        var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(processedLayer.ModifiedAt.ToUniversalTime(), warsawTimeZone);
+        var timeWarsaw = warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
+
+        var valueRangeTime = new ValueRange
+        {
+            Values = new List<IList<object>>
+            {
+                new List<object> { timeUtc },
+                new List<object> { timeWarsaw }
+            }
+        };
+
+        var updateTime = _googleSheetValues.Update(valueRangeTime, sheetId, $"{GoogleSheetName}!G1:G2");
+        updateTime.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        updateTime.Execute();
+
+        _logger.LogDebug("{ProcessorType}: Updated timestamps in Google Sheet - UTC: {TimeUtc}, Warsaw: {TimeWarsaw}",
+            ProcessorType, timeUtc, timeWarsaw);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T1R3Processor.cs

@@ -18,6 +18,10 @@ public class T1R3Processor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T1R3Processor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private string? Source { get; set; }
+
     public T1R3Processor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -27,46 +31,140 @@ public class T1R3Processor : MorskaBaseProcessor
         _googleSheetValues = googleSheetValues;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var source = processWorker.Records?.Where(x => x.Code == "Source").First().Desc1;
-        if (source == null)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load source
+        Source = GetRecordValue(processWorker.Records, "Source");
+        if (string.IsNullOrEmpty(Source))
+        {
+            throw new InvalidOperationException("Source record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Source: {Source}",
+            ProcessorType, Year, Source);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (string.IsNullOrEmpty(Source)) errors.Add("Source is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Source: {Source}",
+            ProcessorType, Year, Source);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources();
+
+        // Process records
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        // Update Google Sheet report
+        UpdateGoogleSheetReport(processedLayer.Id);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}-R3-T1";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}-R3-T1";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
+        return processedLayer;
+    }
 
+    private List<Layer> GetDataSources()
+    {
+        string pattern = @$"^L\d+-P-{Year}/\d+-{Source}-T5$";
         
-        var newRecords = new List<Record>();
-
-        string pattern = @$"^L\d+-P-{year}/\d+-{source}-T5$";
         var dataSources = _db.Layers
             .Where(x => !x.IsDeleted && !x.IsCancelled)
             .Include(layer => layer.Records!)
@@ -75,59 +173,127 @@ public class T1R3Processor : MorskaBaseProcessor
             .Where(x => Regex.IsMatch(x.Name!, pattern))
             .ToList();
 
+        if (dataSources.Count == 0)
+        {
+            throw new InvalidOperationException($"No data sources found for pattern: {pattern}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources matching pattern {Pattern}",
+            ProcessorType, dataSources.Count, pattern);
+
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var newRecords = new List<Record>();
+
         foreach (var dataSource in dataSources)
         {
-            var month = ProcessHelper.ExtractMonthFromLayerName(dataSource.Name!);
-            if (month == null)
+            var monthStr = ProcessHelper.ExtractMonthFromLayerName(dataSource.Name!);
+            if (monthStr == null || !int.TryParse(monthStr, out var month))
             {
-                throw new Exception($"Month not found: {dataSource.Name}");
+                _logger.LogWarning("{ProcessorType}: Could not extract month from layer name: {LayerName}",
+                    ProcessorType, dataSource.Name);
+                continue;
             }
 
-            foreach (var record in dataSource.Records!)
+            _logger.LogDebug("{ProcessorType}: Processing data source {LayerName} for month {Month}",
+                ProcessorType, dataSource.Name, month);
+
+            var sourceRecords = ProcessDataSourceRecords(dataSource, month);
+            newRecords.AddRange(sourceRecords);
+
+            _logger.LogDebug("{ProcessorType}: Processed {RecordCount} records from source {LayerName}",
+                ProcessorType, sourceRecords.Count, dataSource.Name);
+        }
+
+        _logger.LogDebug("{ProcessorType}: Total processed records: {TotalRecordCount}",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private List<Record> ProcessDataSourceRecords(Layer dataSource, int month)
+    {
+        var newRecords = new List<Record>();
+
+        foreach (var record in dataSource.Records!)
+        {
+            if (record.Value1 == null)
             {
-                if (record.Value1 == null) continue;
-                for (var i = 1; i < 33; i++)
+                _logger.LogDebug("{ProcessorType}: Skipping record {RecordCode} - Value1 is null",
+                    ProcessorType, record.Code);
+                continue;
+            }
+
+            // Process values for positions 1-32
+            for (var i = 1; i < 33; i++)
+            {
+                var value = ProcessHelper.GetValue(record, i);
+                if (value == null)
                 {
-                    if (ProcessHelper.GetValue(record, i) == null) continue;
-
-                    var newRecord = new Record
-                    {
-                        Id = Guid.NewGuid(),
-                        Code = $"{record.Code}{month}{i:D2}",
-                        CreatedAt = DateTime.UtcNow,
-                        ModifiedAt = DateTime.UtcNow,
-                        Value1 = i == 1 ? record.Value1 : record.Value1 * ProcessHelper.GetValue(record, i) / 100,
-                        Desc1 = record.Desc1
-                    };
-
-                    newRecords.Add(newRecord);
+                    continue;
                 }
+
+                var baseValue = (double)record.Value1!;
+                var positionValue = (double)value;
+                var calculatedValue = i == 1 ? baseValue : baseValue * positionValue / 100;
+
+                var newRecord = new Record
+                {
+                    Id = Guid.NewGuid(),
+                    Code = $"{record.Code}{month:D2}{i:D2}",
+                    CreatedAt = DateTime.UtcNow,
+                    ModifiedAt = DateTime.UtcNow,
+                    Value1 = calculatedValue,
+                    Desc1 = record.Desc1
+                };
+
+                newRecords.Add(newRecord);
+
+                _logger.LogDebug("{ProcessorType}: Created record {NewRecordCode} with value {Value} from {OriginalCode}",
+                    ProcessorType, newRecord.Code, newRecord.Value1, record.Code);
             }
         }
 
-        if (isNew)
+        return newRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        UpdateReport(processedLayer.Id, year);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -138,90 +304,164 @@ public class T1R3Processor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
     }
 
-    private void UpdateReport(Guid sourceId, int year)
+    private void UpdateGoogleSheetReport(Guid sourceId)
     {
-        const string sheetId = "10Xo8BBF92nM7_JzzeOuWp49Gz8OsYuCxLDOeChqpW_8";
-
-        var r3 = _db.Layers
-            .Where(x => x.Id == sourceId)
-            .Include(x => x.Records)
-            .AsNoTracking()
-            .FirstOrDefault();
-
-        for (var i = 1; i <= 12; i++)
+        try
         {
-            var sheetName = ProcessHelper.GetSheetName(i, year);
+            _logger.LogDebug("{ProcessorType}: Starting Google Sheet report update for layer {LayerId}",
+                ProcessorType, sourceId);
+
+            const string sheetId = "10Xo8BBF92nM7_JzzeOuWp49Gz8OsYuCxLDOeChqpW_8";
+
+            var processedLayer = _db.Layers
+                .Where(x => x.Id == sourceId)
+                .Include(x => x.Records)
+                .AsNoTracking()
+                .FirstOrDefault();
+
+            if (processedLayer == null)
+            {
+                throw new InvalidOperationException($"Processed layer {sourceId} not found");
+            }
+
+            // Update sheets for all months
+            for (var month = 1; month <= 12; month++)
+            {
+                UpdateMonthSheet(sheetId, processedLayer, month);
+            }
+
+            _logger.LogInformation("{ProcessorType}: Successfully updated Google Sheet reports for all months",
+                ProcessorType);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to update Google Sheet report for layer {LayerId}",
+                ProcessorType, sourceId);
+            throw;
+        }
+    }
+
+    private void UpdateMonthSheet(string sheetId, Layer processedLayer, int month)
+    {
+        var sheetName = ProcessHelper.GetSheetName(month, Year);
+
+        try
+        {
+            _logger.LogDebug("{ProcessorType}: Updating sheet {SheetName} for month {Month}",
+                ProcessorType, sheetName, month);
+
+            // Get codes from sheet
             ValueRange? dataRangeResponse;
             try
             {
                 dataRangeResponse = _googleSheetValues.Get(sheetId, $"{sheetName}!A7:A200").Execute();
             }
-            catch
+            catch (Exception e)
             {
-                continue; // Sheet not exist
+                _logger.LogWarning("{ProcessorType}: Sheet {SheetName} not accessible, skipping - {Error}",
+                    ProcessorType, sheetName, e.Message);
+                return;
             }
 
-            if (dataRangeResponse == null) continue; // Sheet not exist
-            var data = dataRangeResponse.Values;
-
-            var updateValueRange = new ValueRange
+            if (dataRangeResponse?.Values == null)
             {
-                Values = new List<IList<object>>()
-            };
-
-            foreach (var row in data)
-            {
-                if (row.Count == 0) continue;
-                var code = row[0].ToString();
-
-                var updateRow = new List<object>();
-
-                for (var j = 1; j < 16; j++)
-                {
-                    var codeRecord = r3!.Records!.FirstOrDefault(x => x.Code == $"{code}{i:D2}{j:D2}");
-                    if (codeRecord is { Value1: not null })
-                    {
-                        updateRow.Add(codeRecord.Value1);
-                    }
-                    else
-                    {
-                        updateRow.Add("");
-                    }
-                }
-
-                updateValueRange.Values.Add(updateRow);
+                _logger.LogWarning("{ProcessorType}: No data found in sheet {SheetName}, skipping",
+                    ProcessorType, sheetName);
+                return;
             }
 
-            dataRangeResponse.Values = data;
-            var update = _googleSheetValues.Update(updateValueRange, sheetId, $"{sheetName}!C7:Q200");
-            update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
-            update.Execute();
+            // Update data
+            UpdateSheetData(sheetId, sheetName, processedLayer, dataRangeResponse.Values, month);
 
-            // update time 
-            var timeUtc = new List<object>
-            {
-                r3!.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-            };
-            var warsawTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Central European Standard Time");
-            var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(r3.ModifiedAt.ToUniversalTime(), warsawTimeZone);
-            var timeWarsaw = new List<object>
-            {
-                warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-            };
-            var valueRangeTime = new ValueRange
-            {
-                Values = new List<IList<object>>()
-            };
-            valueRangeTime.Values.Add(timeUtc);
-            valueRangeTime.Values.Add(timeWarsaw);
+            // Update timestamps
+            UpdateSheetTimestamps(sheetId, sheetName, processedLayer);
 
-            var updateTimeUtc = _googleSheetValues.Update(valueRangeTime, sheetId, $"{sheetName}!G1:G2");
-            updateTimeUtc.ValueInputOption =
-                SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
-            updateTimeUtc.Execute();
+            _logger.LogDebug("{ProcessorType}: Successfully updated sheet {SheetName}",
+                ProcessorType, sheetName);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to update sheet {SheetName} for month {Month}",
+                ProcessorType, sheetName, month);
+            throw;
         }
     }
+
+    private void UpdateSheetData(string sheetId, string sheetName, Layer processedLayer, IList<IList<object>> codeRows, int month)
+    {
+        var updateValueRange = new ValueRange
+        {
+            Values = new List<IList<object>>()
+        };
+
+        foreach (var row in codeRows)
+        {
+            if (row.Count == 0) continue;
+            
+            var code = row[0].ToString();
+            var updateRow = new List<object>();
+
+            // Process columns C to Q (positions 1-15)
+            for (var position = 1; position <= 15; position++)
+            {
+                var recordCode = $"{code}{month:D2}{position:D2}";
+                var codeRecord = processedLayer.Records!.FirstOrDefault(x => x.Code == recordCode);
+                
+                if (codeRecord?.Value1 != null)
+                {
+                    updateRow.Add(codeRecord.Value1);
+                    _logger.LogDebug("{ProcessorType}: Found value {Value} for code {RecordCode}",
+                        ProcessorType, codeRecord.Value1, recordCode);
+                }
+                else
+                {
+                    updateRow.Add("");
+                }
+            }
+
+            updateValueRange.Values.Add(updateRow);
+        }
+
+        // Update sheet with new values
+        var update = _googleSheetValues.Update(updateValueRange, sheetId, $"{sheetName}!C7:Q200");
+        update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        update.Execute();
+
+        _logger.LogDebug("{ProcessorType}: Updated {RowCount} rows of data in sheet {SheetName}",
+            ProcessorType, updateValueRange.Values.Count, sheetName);
+    }
+
+    private void UpdateSheetTimestamps(string sheetId, string sheetName, Layer processedLayer)
+    {
+        var timeUtc = processedLayer.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
+        
+        var warsawTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Central European Standard Time");
+        var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(processedLayer.ModifiedAt.ToUniversalTime(), warsawTimeZone);
+        var timeWarsaw = warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
+
+        var valueRangeTime = new ValueRange
+        {
+            Values = new List<IList<object>>
+            {
+                new List<object> { timeUtc },
+                new List<object> { timeWarsaw }
+            }
+        };
+
+        var updateTime = _googleSheetValues.Update(valueRangeTime, sheetId, $"{sheetName}!G1:G2");
+        updateTime.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        updateTime.Execute();
+
+        _logger.LogDebug("{ProcessorType}: Updated timestamps in sheet {SheetName} - UTC: {TimeUtc}, Warsaw: {TimeWarsaw}",
+            ProcessorType, sheetName, timeUtc, timeWarsaw);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
+    }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3MultiSourceCopySelectedCodesProcessor.cs

@@ -13,6 +13,13 @@ public class T3MultiSourceCopySelectedCodesProcessor : MorskaBaseProcessor
     private readonly AppDbContext _db;
     private readonly ILogger<T3MultiSourceCopySelectedCodesProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private int Month { get; set; }
+    private List<Record>? Sources { get; set; }
+    private string? Codes { get; set; }
+    private List<int>? CodesList { get; set; }
+
     public T3MultiSourceCopySelectedCodesProcessor(
         AppDbContext db,
         ILogger<T3MultiSourceCopySelectedCodesProcessor> logger)
@@ -20,102 +27,268 @@ public class T3MultiSourceCopySelectedCodesProcessor : MorskaBaseProcessor
         _db = db;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var month = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
-        var sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
-        if (sources!.Count == 0)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
         }
-        var codes = processWorker.Records?.SingleOrDefault(x => x.Code == "Codes")?.Desc1;
-        if (codes == null)
+        catch (Exception e)
         {
-            throw new Exception("Codes record not found");
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
-        var codesList = ProcessHelper.ParseCodes(codes);
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
 
+        // Load month
+        var monthStr = GetRecordValue(processWorker.Records, "Month");
+        if (string.IsNullOrEmpty(monthStr) || !int.TryParse(monthStr, out var month))
+        {
+            throw new InvalidOperationException("Month record not found or invalid");
+        }
+        Month = month;
+
+        // Load sources
+        Sources = processWorker.Records.Where(x => x.Code == "Source").ToList();
+        if (Sources.Count == 0)
+        {
+            throw new InvalidOperationException("Source records not found");
+        }
+
+        // Load codes
+        Codes = GetRecordValue(processWorker.Records, "Codes");
+        if (string.IsNullOrEmpty(Codes))
+        {
+            throw new InvalidOperationException("Codes record not found");
+        }
+
+        // Parse codes list
+        CodesList = ProcessHelper.ParseCodes(Codes);
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Month: {Month}, Sources: {SourceCount}, Codes: {CodeCount}",
+            ProcessorType, Year, Month, Sources.Count, CodesList.Count);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Month < 1 || Month > 12) errors.Add($"Invalid month: {Month}");
+        if (Sources == null || Sources.Count == 0) errors.Add("No sources configured");
+        if (CodesList == null || CodesList.Count == 0) errors.Add("No codes configured");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Month: {Month} with {SourceCount} sources",
+            ProcessorType, Year, Month, Sources!.Count);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources();
+
+        // Process records
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month:D2}-AB-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/{Month:D2}-AB-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
+        return processedLayer;
+    }
+
+    private List<Layer> GetDataSources()
+    {
+        var dataSources = new List<Layer>();
+
+        foreach (var source in Sources!)
+        {
+            var dataSource = _db.Layers
+                .Where(x => x.Type == LayerType.Processed && 
+                           !x.IsDeleted && !x.IsCancelled && 
+                           x.Name != null && x.Name.Contains($"{Year}/{Month:D2}-{source.Desc1}-T3"))
+                .Include(x => x.Records)
+                .AsNoTracking()
+                .FirstOrDefault();
+
+            if (dataSource == null)
+            {
+                _logger.LogWarning("{ProcessorType}: Data source not found for {Year}/{Month:D2}-{Source}-T3",
+                    ProcessorType, Year, Month, source.Desc1);
+                continue;
+            }
+
+            dataSources.Add(dataSource);
+            _logger.LogDebug("{ProcessorType}: Found data source {LayerName} with {RecordCount} records",
+                ProcessorType, dataSource.Name, dataSource.Records?.Count ?? 0);
+        }
 
-        var dataSources = sources.Select(source => _db.Layers
-                .Where(x => x.Type == LayerType.Processed && !x.IsDeleted && !x.IsCancelled && x.Name != null && x.Name.Contains($"{year}/{month:D2}-{source.Desc1}-T3"))
-                .Include(x => x.Records).AsNoTracking()
-                .FirstOrDefault())
-                .OfType<Layer>()
-                .ToList();
         if (dataSources.Count == 0)
         {
-            throw new Exception("DataSources are empty");
+            throw new InvalidOperationException($"No data sources found for {Year}/{Month:D2}");
         }
 
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources",
+            ProcessorType, dataSources.Count);
 
-        var newRecords = dataSources
-            .SelectMany(x => x.Records!)
-            .Where(x => codesList.Contains(int.Parse(x.Code!)))
-            .Select(x =>
-            {
-                var newRecord = new Record
-                {
-                    Id = Guid.NewGuid(),
-                    Code = x.Code,
-                    CreatedAt = DateTime.UtcNow,
-                    ModifiedAt = DateTime.UtcNow
-                };
-                for (var i = 1; i < 33; i++)
-                {
-                    ProcessHelper.SetValue(newRecord, i, ProcessHelper.GetValue(x, i));
-                }
-                return newRecord;
-            })
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var allSourceRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        
+        var filteredRecords = allSourceRecords
+            .Where(x => !string.IsNullOrEmpty(x.Code) && 
+                       int.TryParse(x.Code, out var code) && 
+                       CodesList!.Contains(code))
             .ToList();
-        if (isNew)
+
+        _logger.LogDebug("{ProcessorType}: Filtered {FilteredCount} records from {TotalCount} total records using {CodeCount} codes",
+            ProcessorType, filteredRecords.Count, allSourceRecords.Count, CodesList!.Count);
+
+        var newRecords = filteredRecords.Select(x => CreateCopiedRecord(x)).ToList();
+
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} copied records",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private Record CreateCopiedRecord(Record sourceRecord)
+    {
+        var newRecord = new Record
+        {
+            Id = Guid.NewGuid(),
+            Code = sourceRecord.Code,
+            CreatedAt = DateTime.UtcNow,
+            ModifiedAt = DateTime.UtcNow
+        };
+
+        // Copy all values from positions 1-32
+        for (var i = 1; i < 33; i++)
+        {
+            var value = ProcessHelper.GetValue(sourceRecord, i);
+            ProcessHelper.SetValue(newRecord, i, value);
+        }
+
+        _logger.LogDebug("{ProcessorType}: Copied record {Code} with values from positions 1-32",
+            ProcessorType, newRecord.Code);
+
+        return newRecord;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
+
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
-        private void SaveRecords(Guid layerId, ICollection<Record> records)
+    private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -126,6 +299,12 @@ public class T3MultiSourceCopySelectedCodesProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3MultiSourceCopySelectedCodesYearSummaryProcessor.cs

@@ -13,6 +13,9 @@ public class T3MultiSourceCopySelectedCodesYearSummaryProcessor : MorskaBaseProc
     private readonly AppDbContext _db;
     private readonly ILogger<T3MultiSourceCopySelectedCodesYearSummaryProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+
     public T3MultiSourceCopySelectedCodesYearSummaryProcessor(
         AppDbContext db,
         ILogger<T3MultiSourceCopySelectedCodesYearSummaryProcessor> logger)
@@ -20,67 +23,176 @@ public class T3MultiSourceCopySelectedCodesYearSummaryProcessor : MorskaBaseProc
         _db = db;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
+        try
+        {
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
 
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
+        }
+
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}",
+            ProcessorType, Year);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing year summary for Year: {Year}",
+            ProcessorType, Year);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources for all months
+        var dataSources = GetDataSources();
+
+        // Process records (sum all monthly values)
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/13-AB-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/13-AB-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
-        var newRecords = new List<Record>();
+        return processedLayer;
+    }
 
+    private List<Layer> GetDataSources()
+    {
         var dataSources = new List<Layer>();
 
-        for (var i = 1; i < 13; i++)
+        for (var month = 1; month <= 12; month++)
         {
-            var j = i;
-            var dataSource = _db.Layers.Where(x =>
-                    x.Type == LayerType.Processed
-                    && !x.IsDeleted && !x.IsCancelled
-                    && x.Name != null && x.Name.Contains($"{year}/{j:D2}-AB-T3"))
+            var dataSource = _db.Layers
+                .Where(x => x.Type == LayerType.Processed &&
+                           !x.IsDeleted && !x.IsCancelled &&
+                           x.Name != null && x.Name.Contains($"{Year}/{month:D2}-AB-T3"))
                 .Include(x => x.Records)
                 .AsNoTracking()
                 .FirstOrDefault();
+
             if (dataSource != null)
             {
                 dataSources.Add(dataSource);
+                _logger.LogDebug("{ProcessorType}: Found data source for month {Month}: {LayerName} with {RecordCount} records",
+                    ProcessorType, month, dataSource.Name, dataSource.Records?.Count ?? 0);
+            }
+            else
+            {
+                _logger.LogDebug("{ProcessorType}: No data source found for month {Month}",
+                    ProcessorType, month);
             }
         }
 
         if (dataSources.Count == 0)
         {
-            throw new Exception("DataSources are empty");
+            throw new InvalidOperationException($"No data sources found for year {Year}");
         }
 
-        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for year {Year}",
+            ProcessorType, dataSources.Count, Year);
 
-        foreach (var baseRecord in dataSources.Last().Records!)
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        var baseRecords = dataSources.Last().Records!;
+        var newRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {AllRecordCount} total records from {MonthCount} months, using {BaseRecordCount} base records",
+            ProcessorType, allRecords.Count, dataSources.Count, baseRecords.Count);
+
+        foreach (var baseRecord in baseRecords)
         {
             var codeRecords = allRecords.Where(x => x.Code == baseRecord.Code).ToList();
+            
             var processedRecord = new Record
             {
                 Id = Guid.NewGuid(),
@@ -88,34 +200,60 @@ public class T3MultiSourceCopySelectedCodesYearSummaryProcessor : MorskaBaseProc
                 CreatedAt = DateTime.UtcNow,
                 ModifiedAt = DateTime.UtcNow
             };
-            for (var i = 1; i < 33; i++)
+
+            // Sum values from all months for positions 1-32
+            for (var position = 1; position <= 32; position++)
             {
-                ProcessHelper.SetValue(processedRecord, i,
-                    codeRecords.Sum(x => ProcessHelper.GetValue(x, i)));
+                var totalValue = codeRecords.Sum(x => ProcessHelper.GetValue(x, position) ?? 0);
+                ProcessHelper.SetValue(processedRecord, position, totalValue);
             }
 
             newRecords.Add(processedRecord);
+
+            _logger.LogDebug("{ProcessorType}: Processed code {Code} - summed values from {RecordCount} monthly records",
+                ProcessorType, baseRecord.Code, codeRecords.Count);
         }
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} summary records",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
+
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
+
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
-        private void SaveRecords(Guid layerId, ICollection<Record> records)
+
+    private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -126,6 +264,12 @@ public class T3MultiSourceCopySelectedCodesYearSummaryProcessor : MorskaBaseProc
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3MultiSourceSummaryProcessor.cs

@@ -14,6 +14,12 @@ public class T3MultiSourceSummaryProcessor : MorskaBaseProcessor
     private readonly AppDbContext _db;
     private readonly ILogger<T3MultiSourceSummaryProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private int Month { get; set; }
+    private List<Record>? Sources { get; set; }
+    private List<Record>? DynamicCodes { get; set; }
+
     public T3MultiSourceSummaryProcessor(
         AppDbContext db,
         ILogger<T3MultiSourceSummaryProcessor> logger)
@@ -24,47 +30,159 @@ public class T3MultiSourceSummaryProcessor : MorskaBaseProcessor
 
     public override void Process(Layer processWorker)
     {
-        _logger.LogInformation("T3MultiSourceSummary: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
-
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var month = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
-        var sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
-        if (sources!.Count == 0)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load month
+        var monthStr = GetRecordValue(processWorker.Records, "Month");
+        if (string.IsNullOrEmpty(monthStr) || !int.TryParse(monthStr, out var month))
+        {
+            throw new InvalidOperationException("Month record not found or invalid");
+        }
+        Month = month;
+
+        // Load sources
+        Sources = processWorker.Records.Where(x => x.Code == "Source").ToList();
+        if (Sources.Count == 0)
+        {
+            throw new InvalidOperationException("Source records not found");
+        }
+
+        // Load dynamic codes
+        DynamicCodes = processWorker.Records
+            .Where(x => x.Code!.Contains("DynamicCode-"))
+            .OrderBy(x => int.Parse(x.Code!.Split('-')[1]))
+            .ToList();
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Month: {Month}, Sources: {SourceCount}, DynamicCodes: {DynamicCodeCount}",
+            ProcessorType, Year, Month, Sources.Count, DynamicCodes.Count);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Month < 1 || Month > 12) errors.Add($"Invalid month: {Month}");
+        if (Sources == null || Sources.Count == 0) errors.Add("No sources configured");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Month: {Month} with {SourceCount} sources",
+            ProcessorType, Year, Month, Sources!.Count);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources();
+
+        // Process records (sum by base codes)
+        var newRecords = ProcessRecords(dataSources);
+
+        // Process dynamic codes if configured
+        if (DynamicCodes != null && DynamicCodes.Count > 0)
+        {
+            var calculatedRecords = ProcessDynamicCodes(newRecords);
+            newRecords.AddRange(calculatedRecords);
+        }
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month:D2}-AA-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/{Month:D2}-AA-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
+        return processedLayer;
+    }
 
-        var newRecords = new List<Record>();
-
-        var dataSources = sources.Select(source => _db.Layers.Where(x => x.Type == LayerType.Processed && !x.IsDeleted && !x.IsCancelled && x.Name != null && x.Name.Contains($"{year}/{month:D2}-{source.Desc1}-T3"))
+    private List<Layer> GetDataSources()
+    {
+        var dataSources = Sources!.Select(source => 
+            _db.Layers
+                .Where(x => x.Type == LayerType.Processed && 
+                           !x.IsDeleted && !x.IsCancelled && 
+                           x.Name != null && x.Name.Contains($"{Year}/{Month:D2}-{source.Desc1}-T3"))
                 .Include(x => x.Records)
                 .AsNoTracking()
                 .FirstOrDefault())
@@ -73,17 +191,28 @@ public class T3MultiSourceSummaryProcessor : MorskaBaseProcessor
 
         if (dataSources.Count == 0)
         {
-            throw new Exception("DataSources are empty");
+            throw new InvalidOperationException($"No data sources found for {Year}/{Month:D2}");
         }
 
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for processing",
+            ProcessorType, dataSources.Count);
+
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
         var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
         var baseCodes = allRecords.Select(x => x.Code!.Remove(0, 1)).Distinct().ToList();
+        var newRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {AllRecordCount} records from {DataSourceCount} sources, found {BaseCodeCount} base codes",
+            ProcessorType, allRecords.Count, dataSources.Count, baseCodes.Count);
 
         foreach (var baseCode in baseCodes)
         {
-            var codeRecords = allRecords.Where(x =>
-                    x.Code![1..] == baseCode)
-                .ToList();
+            var codeRecords = allRecords.Where(x => x.Code![1..] == baseCode).ToList();
+            
             var processedRecord = new Record
             {
                 Id = Guid.NewGuid(),
@@ -91,82 +220,105 @@ public class T3MultiSourceSummaryProcessor : MorskaBaseProcessor
                 CreatedAt = DateTime.UtcNow,
                 ModifiedAt = DateTime.UtcNow
             };
+
+            // Sum values from all sources for positions 1-32
             for (var i = 1; i < 33; i++)
             {
-                ProcessHelper.SetValue(processedRecord, i,
-                    codeRecords.Sum(x => ProcessHelper.GetValue(x, i)));
+                var totalValue = codeRecords.Sum(x => ProcessHelper.GetValue(x, i));
+                ProcessHelper.SetValue(processedRecord, i, totalValue);
             }
+
             newRecords.Add(processedRecord);
+
+            _logger.LogDebug("{ProcessorType}: Processed base code {BaseCode} - summed values from {RecordCount} source records",
+                ProcessorType, baseCode, codeRecords.Count);
         }
 
-        // Dynamic Codes
-        var dynamicCodes = processWorker.Records?
-            .Where(x => x.Code!.Contains("DynamicCode-"))
-            .OrderBy(x => int.Parse(x.Code!.Split('-')[1])).ToList();
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} summary records",
+            ProcessorType, newRecords.Count);
 
-        if (dynamicCodes != null && dynamicCodes.Count != 0)
+        return newRecords;
+    }
+
+    private List<Record> ProcessDynamicCodes(List<Record> baseRecords)
+    {
+        var calculatedRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {DynamicCodeCount} dynamic codes",
+            ProcessorType, DynamicCodes!.Count);
+
+        foreach (var dynamicCode in DynamicCodes!)
         {
-            foreach (var dynamicCode in dynamicCodes)
+            try
             {
-                try
+                if (string.IsNullOrEmpty(dynamicCode.Desc1))
                 {
-                    if (dynamicCode.Desc1 == null)
-                    {
-                        _logger.LogWarning("T3MultiSourceSummary: Formula in Record {RecordId} is missing. Process: {ProcessName} ({ProcessId})", 
-                            dynamicCode.Id, processWorker.Name, processWorker.Id);
-                        continue;
-                    }
-
-                    var calc = new BaseCalc(dynamicCode.Desc1);
-                    if (!calc.IsFormulaCorrect())
-                    {
-                        _logger.LogWarning("T3MultiSourceSummary: Formula {Expression} in Record {RecordId} is not correct. Process: {ProcessName} ({ProcessId})", 
-                            calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                        continue;
-                    }
-
-                    try
-                    {
-                        newRecords.Add(calc.CalculateT3(newRecords));
-                    }
-                    catch (Exception e)
-                    {
-                        _logger.LogWarning(e, "T3MultiSourceSummary: Formula {Expression} in Record {RecordId} calculation error. Process: {ProcessName} ({ProcessId})", 
-                            calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                    }
+                    _logger.LogWarning("{ProcessorType}: Formula in Record {RecordId} is missing",
+                        ProcessorType, dynamicCode.Id);
+                    continue;
                 }
-                catch (Exception e)
+
+                var calc = new BaseCalc(dynamicCode.Desc1);
+                if (!calc.IsFormulaCorrect())
                 {
-                    _logger.LogWarning(e, "T3MultiSourceSummary: Calculation error for DynamicCode {RecordId}. Process: {ProcessName} ({ProcessId})", 
-                        dynamicCode.Id, processWorker.Name, processWorker.Id);
+                    _logger.LogWarning("{ProcessorType}: Formula {Expression} in Record {RecordId} is not correct",
+                        ProcessorType, calc.Expression, dynamicCode.Id);
+                    continue;
                 }
+
+                var calculatedRecord = calc.CalculateT3(baseRecords);
+                calculatedRecords.Add(calculatedRecord);
+
+                _logger.LogDebug("{ProcessorType}: Successfully calculated dynamic code {Code}, result: {Value}",
+                    ProcessorType, calculatedRecord.Code, calculatedRecord.Value1);
+            }
+            catch (Exception e)
+            {
+                _logger.LogWarning(e, "{ProcessorType}: Formula {Expression} calculation error",
+                    ProcessorType, dynamicCode.Desc1);
             }
         }
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Successfully calculated {CalculatedCount} dynamic records",
+            ProcessorType, calculatedRecords.Count);
+
+        return calculatedRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        _logger.LogInformation("T3MultiSourceSummary: Successfully completed processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -177,6 +329,12 @@ public class T3MultiSourceSummaryProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3MultiSourceYearSummaryProcessor.cs

@@ -14,6 +14,11 @@ public class T3MultiSourceYearSummaryProcessor : MorskaBaseProcessor
     private readonly AppDbContext _db;
     private readonly ILogger<T3MultiSourceYearSummaryProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private List<Record>? Sources { get; set; }
+    private List<Record>? DynamicCodes { get; set; }
+
     public T3MultiSourceYearSummaryProcessor(
         AppDbContext db,
         ILogger<T3MultiSourceYearSummaryProcessor> logger)
@@ -24,46 +29,150 @@ public class T3MultiSourceYearSummaryProcessor : MorskaBaseProcessor
 
     public override void Process(Layer processWorker)
     {
-        _logger.LogInformation("T3MultiSourceYearSummary: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
-
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
-        if (sources!.Count == 0)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load sources
+        Sources = processWorker.Records.Where(x => x.Code == "Source").ToList();
+        if (Sources.Count == 0)
+        {
+            throw new InvalidOperationException("Source records not found");
+        }
+
+        // Load dynamic codes
+        DynamicCodes = processWorker.Records
+            .Where(x => x.Code!.Contains("DynamicCode-"))
+            .OrderBy(x => int.Parse(x.Code!.Split('-')[1]))
+            .ToList();
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Sources: {SourceCount}, DynamicCodes: {DynamicCodeCount}",
+            ProcessorType, Year, Sources.Count, DynamicCodes.Count);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Sources == null || Sources.Count == 0) errors.Add("No sources configured");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing year summary for Year: {Year} with {SourceCount} sources",
+            ProcessorType, Year, Sources!.Count);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources();
+
+        // Process records (sum by base codes with validation)
+        var newRecords = ProcessRecords(dataSources);
+
+        // Process dynamic codes if configured
+        if (DynamicCodes != null && DynamicCodes.Count > 0)
+        {
+            var calculatedRecords = ProcessDynamicCodes(newRecords);
+            newRecords.AddRange(calculatedRecords);
+        }
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/13-AA-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/13-AA-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
+        return processedLayer;
+    }
 
-        var newRecords = new List<Record>();
-
-        var dataSources = sources.Select(source => _db.Layers.Where(x => x.Type == LayerType.Processed && !x.IsDeleted && !x.IsCancelled && x.Name != null && x.Name.Contains($"{year}/13-{source.Desc1}-T3"))
+    private List<Layer> GetDataSources()
+    {
+        var dataSources = Sources!.Select(source => 
+            _db.Layers
+                .Where(x => x.Type == LayerType.Processed && 
+                           !x.IsDeleted && !x.IsCancelled && 
+                           x.Name != null && x.Name.Contains($"{Year}/13-{source.Desc1}-T3"))
                 .Include(x => x.Records)
                 .AsNoTracking()
                 .FirstOrDefault())
@@ -72,21 +181,28 @@ public class T3MultiSourceYearSummaryProcessor : MorskaBaseProcessor
 
         if (dataSources.Count == 0)
         {
-            throw new Exception("DataSources are empty");
+            throw new InvalidOperationException($"No data sources found for year {Year}");
         }
 
-        var allRecords = dataSources
-            .SelectMany(x => x.Records!).ToList();
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for year {Year}",
+            ProcessorType, dataSources.Count, Year);
+
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
         var baseCodes = allRecords.Select(x => x.Code!.Remove(0, 1)).Distinct().ToList();
+        var newRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {AllRecordCount} records from {DataSourceCount} sources, found {BaseCodeCount} base codes",
+            ProcessorType, allRecords.Count, dataSources.Count, baseCodes.Count);
 
         foreach (var baseCode in baseCodes)
         {
-            var codeRecords = allRecords.Where(x =>
-                    x.Code![1..] == baseCode)
-                .ToList();
-            var codeRecordsValidation = allRecords.Where(x =>
-                    x.Code![1..] == baseCode)
-                .ToList();
+            var codeRecords = allRecords.Where(x => x.Code![1..] == baseCode).ToList();
+            
             var processedRecord = new Record
             {
                 Id = Guid.NewGuid(),
@@ -94,95 +210,119 @@ public class T3MultiSourceYearSummaryProcessor : MorskaBaseProcessor
                 CreatedAt = DateTime.UtcNow,
                 ModifiedAt = DateTime.UtcNow
             };
+
+            // Validation record for double-checking calculations
             var validationRecord = new Record();
+
+            // Sum values from all sources for positions 1-32 with validation
             for (var i = 1; i < 33; i++)
             {
-                ProcessHelper.SetValue(processedRecord, i,
-                    codeRecords.Sum(x => ProcessHelper.GetValue(x, i)));
+                var totalValue = codeRecords.Sum(x => ProcessHelper.GetValue(x, i));
+                ProcessHelper.SetValue(processedRecord, i, totalValue);
 
-                ProcessHelper.SetValue(validationRecord, i,
-                    codeRecordsValidation.Sum(x => ProcessHelper.GetValue(x, i)));
+                // Validation calculation (identical to main calculation)
+                var validationValue = codeRecords.Sum(x => ProcessHelper.GetValue(x, i));
+                ProcessHelper.SetValue(validationRecord, i, validationValue);
 
-                if (
-                    double.Abs((double)(ProcessHelper.GetValue(processedRecord, i) -
-                                        ProcessHelper.GetValue(validationRecord, i))!) > 0.01)
+                // Validate that both calculations match
+                var difference = Math.Abs((double)(ProcessHelper.GetValue(processedRecord, i) - ProcessHelper.GetValue(validationRecord, i))!);
+                if (difference > 0.01)
                 {
-                    throw new Exception($"ValidationError: Code {baseCode}, " +
-                                        $"Value{i} ({ProcessHelper.GetValue(processedRecord, i)} | " +
-                                        $"{ProcessHelper.GetValue(validationRecord, i)})");
+                    throw new InvalidOperationException($"ValidationError: Code {baseCode}, Value{i} ({ProcessHelper.GetValue(processedRecord, i)} | {ProcessHelper.GetValue(validationRecord, i)})");
                 }
             }
+
             newRecords.Add(processedRecord);
+
+            _logger.LogDebug("{ProcessorType}: Processed base code {BaseCode} - summed values from {RecordCount} source records",
+                ProcessorType, baseCode, codeRecords.Count);
         }
 
-        // Dynamic Codes
-        var dynamicCodes = processWorker.Records?
-            .Where(x => x.Code!.Contains("DynamicCode-"))
-            .OrderBy(x => int.Parse(x.Code!.Split('-')[1])).ToList();
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} summary records",
+            ProcessorType, newRecords.Count);
 
-        if (dynamicCodes != null && dynamicCodes.Count != 0)
+        return newRecords;
+    }
+
+    private List<Record> ProcessDynamicCodes(List<Record> baseRecords)
+    {
+        var calculatedRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {DynamicCodeCount} dynamic codes",
+            ProcessorType, DynamicCodes!.Count);
+
+        foreach (var dynamicCode in DynamicCodes!)
         {
-            foreach (var dynamicCode in dynamicCodes)
+            try
             {
-                try
+                if (string.IsNullOrEmpty(dynamicCode.Desc1))
                 {
-                    if (dynamicCode.Desc1 == null)
-                    {
-                        _logger.LogWarning("T3MultiSourceYearSummary: Formula in Record {RecordId} is missing. Process: {ProcessName} ({ProcessId})", 
-                            dynamicCode.Id, processWorker.Name, processWorker.Id);
-                        continue;
-                    }
-                    
-                    var calc = new BaseCalc(dynamicCode.Desc1);
-                    if (!calc.IsFormulaCorrect())
-                    {
-                        _logger.LogWarning("T3MultiSourceYearSummary: Formula {Expression} in Record {RecordId} is not correct. Process: {ProcessName} ({ProcessId})", 
-                            calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                        continue;
-                    }
-
-                    try
-                    {
-                        newRecords.Add(calc.CalculateT3(newRecords));
-                    }
-                    catch (Exception e)
-                    {
-                        _logger.LogWarning(e, "T3MultiSourceYearSummary: Formula {Expression} in Record {RecordId} calculation error. Process: {ProcessName} ({ProcessId})", 
-                            calc.Expression, dynamicCode.Id, processWorker.Name, processWorker.Id);
-                    }
+                    _logger.LogWarning("{ProcessorType}: Formula in Record {RecordId} is missing",
+                        ProcessorType, dynamicCode.Id);
+                    continue;
                 }
-                catch (Exception e)
+
+                var calc = new BaseCalc(dynamicCode.Desc1);
+                if (!calc.IsFormulaCorrect())
                 {
-                    _logger.LogWarning(e, "T3MultiSourceYearSummary: Calculation error for DynamicCode {RecordId}. Process: {ProcessName} ({ProcessId})", 
-                        dynamicCode.Id, processWorker.Name, processWorker.Id);
+                    _logger.LogWarning("{ProcessorType}: Formula {Expression} in Record {RecordId} is not correct",
+                        ProcessorType, calc.Expression, dynamicCode.Id);
+                    continue;
                 }
+
+                var calculatedRecord = calc.CalculateT3(baseRecords);
+                calculatedRecords.Add(calculatedRecord);
+
+                _logger.LogDebug("{ProcessorType}: Successfully calculated dynamic code {Code}, result: {Value}",
+                    ProcessorType, calculatedRecord.Code, calculatedRecord.Value1);
+            }
+            catch (Exception e)
+            {
+                _logger.LogWarning(e, "{ProcessorType}: Formula {Expression} calculation error",
+                    ProcessorType, dynamicCode.Desc1);
             }
         }
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Successfully calculated {CalculatedCount} dynamic records",
+            ProcessorType, calculatedRecords.Count);
+
+        return calculatedRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        _logger.LogInformation("T3MultiSourceYearSummary: Successfully completed processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -193,6 +333,12 @@ public class T3MultiSourceYearSummaryProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceYearSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3SingleSourceProcessor.cs

@@ -15,6 +15,13 @@ public class T3SingleSourceProcessor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T3SingleSourceProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private int Month { get; set; }
+    private string? SourceLayerName { get; set; }
+    private string? Source { get; set; }
+    private Layer? SourceImportWorker { get; set; }
+
     public T3SingleSourceProcessor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -24,70 +31,184 @@ public class T3SingleSourceProcessor : MorskaBaseProcessor
         _googleSheetValues = googleSheetValues;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var month = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
-        var sourceLayer = processWorker.Records?.SingleOrDefault(x => x.Code == "SourceLayer")?.Desc1;
-        if (sourceLayer == null)
+        try
         {
-            throw new Exception("SourceLayer record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
         }
-        var sourceImportWorker = _db.Layers.SingleOrDefault(x => x.Name == sourceLayer && !x.IsDeleted && !x.IsCancelled);
-        if (sourceImportWorker == null)
+        catch (Exception e)
         {
-            throw new Exception("SourceImportWorkerL layer not found");
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
         }
-        var source = processWorker.Records?.SingleOrDefault(x => x.Code == "Source")?.Desc1;
-        if (sourceLayer == null)
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
         {
-            throw new Exception("Source record not found");
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year and month
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        var monthStr = GetRecordValue(processWorker.Records, "Month");
+        if (string.IsNullOrEmpty(monthStr) || !int.TryParse(monthStr, out var month))
+        {
+            throw new InvalidOperationException("Month record not found or invalid");
+        }
+        Month = month;
+
+        // Load source layer name
+        SourceLayerName = GetRecordValue(processWorker.Records, "SourceLayer");
+        if (string.IsNullOrEmpty(SourceLayerName))
+        {
+            throw new InvalidOperationException("SourceLayer record not found");
+        }
+
+        // Load source name
+        Source = GetRecordValue(processWorker.Records, "Source");
+        if (string.IsNullOrEmpty(Source))
+        {
+            throw new InvalidOperationException("Source record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Month: {Month}, SourceLayer: {SourceLayer}, Source: {Source}",
+            ProcessorType, Year, Month, SourceLayerName, Source);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Month < 1 || Month > 12) errors.Add($"Invalid month: {Month}");
+        if (string.IsNullOrEmpty(SourceLayerName)) errors.Add("SourceLayer is required");
+        if (string.IsNullOrEmpty(Source)) errors.Add("Source is required");
+
+        // Find source import worker
+        SourceImportWorker = _db.Layers.SingleOrDefault(x => x.Name == SourceLayerName && !x.IsDeleted && !x.IsCancelled);
+        if (SourceImportWorker == null)
+        {
+            errors.Add($"SourceImportWorker layer '{SourceLayerName}' not found");
+        }
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Month: {Month}, Source: {Source}",
+            ProcessorType, Year, Month, Source);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources();
+
+        // Process records
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month:D2}-{source}-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/{Month:D2}-{Source}-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}", 
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}", 
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
-
-        var newRecords = new List<Record>();
+        return processedLayer;
+    }
 
+    private List<Layer> GetDataSources()
+    {
         var dataSources = _db.Layers
             .Include(x => x.Records)
-            .Where(x => x.ParentId == sourceImportWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == SourceImportWorker!.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderBy(x => x.CreatedAt)
             .AsNoTracking()
             .ToList();
+
         if (dataSources.Count == 0)
         {
-            throw new Exception($"DataSources are empty, {sourceImportWorker.Name}");
+            throw new InvalidOperationException($"No data sources found for import worker '{SourceImportWorker!.Name}'");
         }
 
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for processing",
+            ProcessorType, dataSources.Count);
+
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var newRecords = new List<Record>();
         var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
 
+        _logger.LogDebug("{ProcessorType}: Processing records from {RecordCount} total records",
+            ProcessorType, allRecords.Count);
+
         foreach (var baseRecord in dataSources.Last().Records!)
         {
             var codeRecords = allRecords.Where(x => x.Code == baseRecord.Code).ToList();
@@ -100,67 +221,104 @@ public class T3SingleSourceProcessor : MorskaBaseProcessor
                 ModifiedAt = DateTime.UtcNow
             };
 
-            var lastDayInMonth = DateTime.DaysInMonth(year, month);
-            //day 1
-            var firstVal = codeRecords
-                .Where(x => x.CreatedAt.Date <= new DateTime(year, month, 1)).MaxBy(x => x.CreatedAt)?.Value1 ?? 0;
-            ProcessHelper.SetValue(processedRecord, 1, firstVal);
-            var previousValue = firstVal;
-            //days 2-29/30
-            for (var i = 2; i < lastDayInMonth; i++)
-            {
-                var dayVal = codeRecords
-                    .Where(x => x.CreatedAt.Day == i && x.CreatedAt.Month == month).MaxBy(x => x.CreatedAt)?.Value1;
-                if (dayVal == null)
-                {
-                    ProcessHelper.SetValue(processedRecord, i, 0);
-                }
-                else
-                {
-                    var processedVal = dayVal - previousValue;
-                    ProcessHelper.SetValue(processedRecord, i, processedVal);
-                    previousValue = (double)dayVal;
-                }
-            }
-            //last day
-            var lastVal = codeRecords
-                .Where(x => x.CreatedAt.Date >= new DateTime(year, month, lastDayInMonth)).MaxBy(x => x.CreatedAt)?.Value1;
-
-            if (lastVal == null)
-            {
-                ProcessHelper.SetValue(processedRecord, lastDayInMonth, 0);
-            }
-            else
-            {
-                ProcessHelper.SetValue(processedRecord, lastDayInMonth, (double)lastVal - previousValue);
-            }
-
-            // copy last value
-            var valueToCopy = codeRecords.MaxBy(x => x.CreatedAt)?.Value1;
-            ProcessHelper.SetValue(processedRecord, 32, valueToCopy);
+            ProcessDailyValues(processedRecord, codeRecords);
 
             newRecords.Add(processedRecord);
         }
 
+        _logger.LogDebug("{ProcessorType}: Processed {ProcessedRecordCount} records",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private void ProcessDailyValues(Record processedRecord, List<Record> codeRecords)
+    {
+        var lastDayInMonth = DateTime.DaysInMonth(Year, Month);
+
+        // Day 1 - first value for the month
+        var firstVal = codeRecords
+            .Where(x => x.CreatedAt.Date <= new DateTime(Year, Month, 1))
+            .MaxBy(x => x.CreatedAt)?.Value1 ?? 0;
+        
+        ProcessHelper.SetValue(processedRecord, 1, firstVal);
+        var previousValue = firstVal;
+
+        // Days 2 to last-1 - daily differences
+        for (var i = 2; i < lastDayInMonth; i++)
+        {
+            var dayVal = codeRecords
+                .Where(x => x.CreatedAt.Day == i && x.CreatedAt.Month == Month)
+                .MaxBy(x => x.CreatedAt)?.Value1;
+
+            if (dayVal == null)
+            {
+                ProcessHelper.SetValue(processedRecord, i, 0);
+            }
+            else
+            {
+                var processedVal = dayVal - previousValue;
+                ProcessHelper.SetValue(processedRecord, i, processedVal);
+                previousValue = (double)dayVal;
+            }
+        }
+
+        // Last day - special handling
+        var lastVal = codeRecords
+            .Where(x => x.CreatedAt.Date >= new DateTime(Year, Month, lastDayInMonth))
+            .MaxBy(x => x.CreatedAt)?.Value1;
+
+        if (lastVal == null)
+        {
+            ProcessHelper.SetValue(processedRecord, lastDayInMonth, 0);
+        }
+        else
+        {
+            ProcessHelper.SetValue(processedRecord, lastDayInMonth, (double)lastVal - previousValue);
+        }
+
+        // Copy last value to position 32
+        var valueToCopy = codeRecords.MaxBy(x => x.CreatedAt)?.Value1;
+        ProcessHelper.SetValue(processedRecord, 32, valueToCopy);
+
+        _logger.LogDebug("{ProcessorType}: Processed daily values for code {Code}, last value: {LastValue}",
+            ProcessorType, processedRecord.Code, valueToCopy);
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var isNew = processedLayer.Id == Guid.Empty || !_db.Layers.Any(x => x.Id == processedLayer.Id);
+
         if (isNew)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
+
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
+
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
-        private void SaveRecords(Guid layerId, ICollection<Record> records)
+
+    private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -171,7 +329,12 @@ public class T3SingleSourceProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
     }
 
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
+    }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T3SourceYearSummaryProcessor.cs

@@ -15,6 +15,10 @@ public class T3SourceYearSummaryProcessor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T3SourceYearSummaryProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private string? Source { get; set; }
+
     public T3SourceYearSummaryProcessor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -27,72 +31,181 @@ public class T3SourceYearSummaryProcessor : MorskaBaseProcessor
 
     public override void Process(Layer processWorker)
     {
-        _logger.LogInformation("T3SourceYearSummary: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
-
-        var year = processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1;
-        var source = processWorker.Records?.SingleOrDefault(x => x.Code == "Source")?.Desc1;
-        if (source == null)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load source
+        Source = GetRecordValue(processWorker.Records, "Source");
+        if (string.IsNullOrEmpty(Source))
+        {
+            throw new InvalidOperationException("Source record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Source: {Source}",
+            ProcessorType, Year, Source);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (string.IsNullOrEmpty(Source)) errors.Add("Source is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing year summary for Year: {Year}, Source: {Source}",
+            ProcessorType, Year, Source);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources for all months
+        var dataSources = GetDataSources();
+
+        // Process records (sum all monthly values)
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/13-{source}-T3";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/13-{Source}-T3";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
-        var newRecords = new List<Record>();
+        return processedLayer;
+    }
 
+    private List<Layer> GetDataSources()
+    {
         var dataSources = new List<Layer>();
-        for (var i = 1; i < 13; i++)
+
+        for (var month = 1; month <= 12; month++)
         {
-            var j = i;
-            var dataSource = _db.Layers.Where(x =>
-                    x.Type == LayerType.Processed
-                    && !x.IsDeleted && !x.IsCancelled
-                    && x.Name != null && x.Name.Contains($"{year}/{j:D2}-{source}-T3"))
+            var dataSource = _db.Layers
+                .Where(x => x.Type == LayerType.Processed &&
+                           !x.IsDeleted && !x.IsCancelled &&
+                           x.Name != null && x.Name.Contains($"{Year}/{month:D2}-{Source}-T3"))
                 .Include(x => x.Records)
                 .AsNoTracking()
                 .FirstOrDefault();
+
             if (dataSource != null)
             {
                 dataSources.Add(dataSource);
+                _logger.LogDebug("{ProcessorType}: Found data source for month {Month}: {LayerName} with {RecordCount} records",
+                    ProcessorType, month, dataSource.Name, dataSource.Records?.Count ?? 0);
+            }
+            else
+            {
+                _logger.LogDebug("{ProcessorType}: No data source found for month {Month}",
+                    ProcessorType, month);
             }
         }
 
         if (dataSources.Count == 0)
         {
-            throw new Exception("DataSources are empty");
+            throw new InvalidOperationException($"No data sources found for year {Year}, source {Source}");
         }
 
-        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for year {Year}, source {Source}",
+            ProcessorType, dataSources.Count, Year, Source);
 
-        foreach (var baseRecord in dataSources.Last().Records!)
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        var baseRecords = dataSources.Last().Records!;
+        var newRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {AllRecordCount} total records from {MonthCount} months, using {BaseRecordCount} base records",
+            ProcessorType, allRecords.Count, dataSources.Count, baseRecords.Count);
+
+        foreach (var baseRecord in baseRecords)
         {
             var codeRecords = allRecords.Where(x => x.Code == baseRecord.Code).ToList();
+            
             var processedRecord = new Record
             {
                 Id = Guid.NewGuid(),
@@ -100,38 +213,60 @@ public class T3SourceYearSummaryProcessor : MorskaBaseProcessor
                 CreatedAt = DateTime.UtcNow,
                 ModifiedAt = DateTime.UtcNow
             };
-            for (var i = 1; i < 33; i++)
+
+            // Sum values from all months for positions 1-32
+            for (var position = 1; position <= 32; position++)
             {
-                ProcessHelper.SetValue(processedRecord, i,
-                    codeRecords.Sum(x => ProcessHelper.GetValue(x, i)));
+                var totalValue = codeRecords.Sum(x => ProcessHelper.GetValue(x, position));
+                ProcessHelper.SetValue(processedRecord, position, totalValue);
             }
+
             newRecords.Add(processedRecord);
+
+            _logger.LogDebug("{ProcessorType}: Processed code {Code} - summed values from {RecordCount} monthly records",
+                ProcessorType, baseRecord.Code, codeRecords.Count);
         }
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} summary records",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        _logger.LogInformation("T3SourceYearSummary: Successfully completed processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -142,6 +277,12 @@ public class T3SourceYearSummaryProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3SourceYearSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T4R2Processor.cs

@@ -7,7 +7,6 @@ using DiunaBI.Core.Models;
 using DiunaBI.Core.Database.Context;
 using DiunaBI.Core.Services;
 
-
 namespace DiunaBI.Plugins.Morska.Processors;
 
 public class T4R2Processor : MorskaBaseProcessor
@@ -18,6 +17,13 @@ public class T4R2Processor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T4R2Processor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private List<Record>? Sources { get; set; }
+    private string? LayerName { get; set; }
+    private string? ReportSheetName { get; set; }
+    private string? InvoicesSheetName { get; set; }
+
     public T4R2Processor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -30,200 +36,365 @@ public class T4R2Processor : MorskaBaseProcessor
 
     public override void Process(Layer processWorker)
     {
-        _logger.LogInformation("T4R2: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
-
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
-        if (sources!.Count == 0)
+        try
         {
-            throw new Exception("Source record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
-        var layerName = processWorker.Records?.SingleOrDefault(x => x.Code == "LayerName")?.Desc1;
-        if (layerName == null)
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
         {
-            throw new Exception("LayerName record not found");
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load sources
+        Sources = processWorker.Records.Where(x => x.Code == "Source").ToList();
+        if (Sources.Count == 0)
+        {
+            throw new InvalidOperationException("Source records not found");
         }
 
+        // Load layer name
+        LayerName = GetRecordValue(processWorker.Records, "LayerName");
+        if (string.IsNullOrEmpty(LayerName))
+        {
+            throw new InvalidOperationException("LayerName record not found");
+        }
+
+        // Load report sheet name
+        ReportSheetName = GetRecordValue(processWorker.Records, "GoogleSheetName");
+        if (string.IsNullOrEmpty(ReportSheetName))
+        {
+            throw new InvalidOperationException("GoogleSheetName record not found");
+        }
+
+        // Load invoices sheet name
+        InvoicesSheetName = GetRecordValue(processWorker.Records, "GoogleSheetName-Invoices");
+        if (string.IsNullOrEmpty(InvoicesSheetName))
+        {
+            throw new InvalidOperationException("GoogleSheetName-Invoices record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Sources: {SourceCount}, LayerName: {LayerName}",
+            ProcessorType, Year, Sources.Count, LayerName);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Sources == null || Sources.Count == 0) errors.Add("No sources configured");
+        if (string.IsNullOrEmpty(LayerName)) errors.Add("LayerName is required");
+        if (string.IsNullOrEmpty(ReportSheetName)) errors.Add("ReportSheetName is required");
+        if (string.IsNullOrEmpty(InvoicesSheetName)) errors.Add("InvoicesSheetName is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year} with {SourceCount} sources",
+            ProcessorType, Year, Sources!.Count);
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Process records for all sources
+        var newRecords = ProcessSources();
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        // Update Google Sheets reports
+        UpdateReport(processedLayer.Id);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-{layerName}";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-{LayerName}";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
+        return processedLayer;
+    }
 
+    private List<Record> ProcessSources()
+    {
         var newRecords = new List<Record>();
 
-        foreach (var source in sources)
+        foreach (var source in Sources!)
         {
-            var rawSourceCodes = processWorker.Records?.SingleOrDefault(x => x.Code == $"Codes-{source.Desc1}")
-                ?.Desc1;
-            var sourceCodes = new List<int>();
-            if (rawSourceCodes != null)
-            {
-                sourceCodes = ProcessHelper.ParseCodes(rawSourceCodes);
-            }
+            _logger.LogDebug("{ProcessorType}: Processing source {Source}",
+                ProcessorType, source.Desc1);
 
-            List<string> lastSourceCodes = [];
+            var sourceCodes = GetSourceCodes(source);
+            var sourceRecords = ProcessSourceData(source, sourceCodes);
+            newRecords.AddRange(sourceRecords);
 
-            for (var month = 1; month <= 12; month++)
-            {
-                if ((year == DateTime.UtcNow.Year && month <= DateTime.UtcNow.Month) || year < DateTime.UtcNow.Year)
-                {
-                    var monthCopy = month;
-                    var dataSource = _db.Layers.Where(x =>
-                            x.Type == LayerType.Processed &&
-                            !x.IsDeleted && !x.IsCancelled &&
-                            x.Name != null && x.Name.Contains($"{year}/{monthCopy:D2}-{source.Desc1}-T")
-                        )
-                        .Include(x => x.Records)
-                        .AsNoTracking()
-                        .FirstOrDefault();
-                    if (dataSource != null)
-                    {
-                        lastSourceCodes = dataSource.Records!.Select(x => x.Code!).ToList();
-                        var news = dataSource.Records!
-                            .Where(x => sourceCodes.Count <= 0 || sourceCodes.Contains(int.Parse(x.Code!)))
-                            .Select(x =>
-                                {
-                                    var newRecord = new Record
-                                    {
-                                        Id = Guid.NewGuid(),
-                                        Code = $"{x.Code}{month:D2}",
-                                        CreatedAt = DateTime.UtcNow,
-                                        ModifiedAt = DateTime.UtcNow,
-                                        Value1 = source.Desc1 != "FK2" ? x.Value32 : x.Value1,
-                                        Desc1 = x.Desc1
-                                    };
-                                    return newRecord;
-                                }
-                            ).ToList();
-                        newRecords.AddRange(news);
-                    }
-                    else
-                    {
-                        _logger.LogWarning("T4R2: Data source {DataSource} not found. Process: {ProcessName} ({ProcessId})", 
-                            $"{year}/{month:D2}-{source.Desc1}-T3", processWorker.Name, processWorker.Id);
-                    }
-                }
-                else
-                {
-                    //0 values for future months
-                    if (source.Desc1 == "FK2" || lastSourceCodes.Count <= 0) continue;
-                    var news = lastSourceCodes
-                        .Where(x => sourceCodes.Contains(int.Parse(x)))
-                        .Select(x =>
-                            {
-                                var newRecord = new Record
-                                {
-                                    Id = Guid.NewGuid(),
-                                    Code = $"{x}{month:D2}",
-                                    CreatedAt = DateTime.UtcNow,
-                                    ModifiedAt = DateTime.UtcNow,
-                                    Value1 = 0,
-                                };
-                                return newRecord;
-                            }
-                        ).ToList();
-                    newRecords.AddRange(news);
-                }
-            }
+            _logger.LogDebug("{ProcessorType}: Processed source {Source} - created {RecordCount} records",
+                ProcessorType, source.Desc1, sourceRecords.Count);
+        }
 
-            // year summary
-            var dataSourceSum = _db.Layers.Where(x =>
-                    x.Type == LayerType.Processed &&
-                    !x.IsDeleted && !x.IsCancelled &&
-                    x.Name != null && x.Name.Contains($"{year}/13-{source.Desc1}-T")
-                )
-                .Include(x => x.Records)
-                .AsNoTracking()
-                .FirstOrDefault();
-            if (dataSourceSum != null)
+        _logger.LogDebug("{ProcessorType}: Total records created: {TotalRecordCount}",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private List<int> GetSourceCodes(Record source)
+    {
+        var rawSourceCodes = GetRecordValue(Sources!, $"Codes-{source.Desc1}");
+        if (string.IsNullOrEmpty(rawSourceCodes))
+        {
+            return new List<int>();
+        }
+
+        return ProcessHelper.ParseCodes(rawSourceCodes);
+    }
+
+    private List<Record> ProcessSourceData(Record source, List<int> sourceCodes)
+    {
+        var sourceRecords = new List<Record>();
+        var lastSourceCodes = new List<string>();
+
+        // Process monthly data (1-12)
+        for (var month = 1; month <= 12; month++)
+        {
+            var monthRecords = ProcessMonthData(source, sourceCodes, month, lastSourceCodes);
+            sourceRecords.AddRange(monthRecords);
+        }
+
+        // Process year summary (month 13)
+        var yearSummaryRecords = ProcessYearSummaryData(source, sourceCodes);
+        sourceRecords.AddRange(yearSummaryRecords);
+
+        return sourceRecords;
+    }
+
+    private List<Record> ProcessMonthData(Record source, List<int> sourceCodes, int month, List<string> lastSourceCodes)
+    {
+        var monthRecords = new List<Record>();
+
+        if (IsDataAvailableForMonth(month))
+        {
+            var dataSource = GetMonthDataSource(source, month);
+            if (dataSource != null)
             {
-                var news = dataSourceSum.Records!
-                    .Where(x => sourceCodes.Count <= 0 || sourceCodes.Contains(int.Parse(x.Code!)))
-                    .Select(x =>
-                        {
-                            var newRecord = new Record
-                            {
-                                Id = Guid.NewGuid(),
-                                Code = $"{x.Code}13",
-                                CreatedAt = DateTime.UtcNow,
-                                ModifiedAt = DateTime.UtcNow,
-                                Value1 = x.Value32
-                            };
-                            return newRecord;
-                        }
-                    ).ToList();
-                newRecords.AddRange(news);
+                lastSourceCodes.Clear();
+                lastSourceCodes.AddRange(dataSource.Records!.Select(x => x.Code!));
+
+                var filteredRecords = FilterRecords(dataSource.Records!, sourceCodes);
+                var processedRecords = CreateMonthRecords(filteredRecords, source, month);
+                monthRecords.AddRange(processedRecords);
+
+                _logger.LogDebug("{ProcessorType}: Processed month {Month} for source {Source} - {RecordCount} records",
+                    ProcessorType, month, source.Desc1, processedRecords.Count);
             }
             else
             {
-                _logger.LogWarning("T4R2: Data source {DataSource} not found. Process: {ProcessName} ({ProcessId})", 
-                    $"{year}/13-{source.Desc1}-T3", processWorker.Name, processWorker.Id);
+                _logger.LogWarning("{ProcessorType}: Data source {DataSource} not found",
+                    ProcessorType, $"{Year}/{month:D2}-{source.Desc1}-T");
+            }
+        }
+        else
+        {
+            // Future months - create zero value records (except for FK2)
+            if (source.Desc1 != "FK2" && lastSourceCodes.Count > 0)
+            {
+                var futureRecords = CreateFutureMonthRecords(lastSourceCodes, sourceCodes, month);
+                monthRecords.AddRange(futureRecords);
+
+                _logger.LogDebug("{ProcessorType}: Created {RecordCount} zero-value records for future month {Month}",
+                    ProcessorType, futureRecords.Count, month);
             }
         }
 
-        if (isNew)
+        return monthRecords;
+    }
+
+    private bool IsDataAvailableForMonth(int month)
+    {
+        return (Year == DateTime.UtcNow.Year && month <= DateTime.UtcNow.Month) || Year < DateTime.UtcNow.Year;
+    }
+
+    private Layer? GetMonthDataSource(Record source, int month)
+    {
+        return _db.Layers
+            .Where(x => x.Type == LayerType.Processed &&
+                       !x.IsDeleted && !x.IsCancelled &&
+                       x.Name != null && x.Name.Contains($"{Year}/{month:D2}-{source.Desc1}-T"))
+            .Include(x => x.Records)
+            .AsNoTracking()
+            .FirstOrDefault();
+    }
+
+    private List<Record> FilterRecords(IEnumerable<Record> records, List<int> sourceCodes)
+    {
+        return records
+            .Where(x => sourceCodes.Count <= 0 || sourceCodes.Contains(int.Parse(x.Code!)))
+            .ToList();
+    }
+
+    private List<Record> CreateMonthRecords(List<Record> filteredRecords, Record source, int month)
+    {
+        return filteredRecords.Select(x => new Record
+        {
+            Id = Guid.NewGuid(),
+            Code = $"{x.Code}{month:D2}",
+            CreatedAt = DateTime.UtcNow,
+            ModifiedAt = DateTime.UtcNow,
+            Value1 = source.Desc1 != "FK2" ? x.Value32 : x.Value1,
+            Desc1 = x.Desc1
+        }).ToList();
+    }
+
+    private List<Record> CreateFutureMonthRecords(List<string> lastSourceCodes, List<int> sourceCodes, int month)
+    {
+        return lastSourceCodes
+            .Where(x => sourceCodes.Contains(int.Parse(x)))
+            .Select(x => new Record
+            {
+                Id = Guid.NewGuid(),
+                Code = $"{x}{month:D2}",
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow,
+                Value1 = 0
+            }).ToList();
+    }
+
+    private List<Record> ProcessYearSummaryData(Record source, List<int> sourceCodes)
+    {
+        var dataSourceSum = _db.Layers
+            .Where(x => x.Type == LayerType.Processed &&
+                       !x.IsDeleted && !x.IsCancelled &&
+                       x.Name != null && x.Name.Contains($"{Year}/13-{source.Desc1}-T"))
+            .Include(x => x.Records)
+            .AsNoTracking()
+            .FirstOrDefault();
+
+        if (dataSourceSum == null)
+        {
+            _logger.LogWarning("{ProcessorType}: Year summary data source {DataSource} not found",
+                ProcessorType, $"{Year}/13-{source.Desc1}-T3");
+            return new List<Record>();
+        }
+
+        var filteredRecords = FilterRecords(dataSourceSum.Records!, sourceCodes);
+        var yearSummaryRecords = filteredRecords.Select(x => new Record
+        {
+            Id = Guid.NewGuid(),
+            Code = $"{x.Code}13",
+            CreatedAt = DateTime.UtcNow,
+            ModifiedAt = DateTime.UtcNow,
+            Value1 = x.Value32
+        }).ToList();
+
+        _logger.LogDebug("{ProcessorType}: Created {RecordCount} year summary records for source {Source}",
+            ProcessorType, yearSummaryRecords.Count, source.Desc1);
+
+        return yearSummaryRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        var reportSheetName = processWorker.Records?.SingleOrDefault(x => x.Code == "GoogleSheetName")?.Desc1;
-        if (reportSheetName == null)
-        {
-            throw new Exception("GoogleSheetName record not found");
-        }
-
-        var invoicesSheetName = processWorker.Records?.SingleOrDefault(x => x.Code == "GoogleSheetName-Invoices")?.Desc1;
-        if (invoicesSheetName == null)
-        {
-            throw new Exception("GoogleSheetName-Invoices record not found");
-        }
-
-        UpdateReport(processedLayer.Id, reportSheetName, invoicesSheetName);
-
-        _logger.LogInformation("T4R2: Successfully completed processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -234,153 +405,196 @@ public class T4R2Processor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T4R2: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
     }
 
-    private void UpdateReport(Guid sourceId, string reportSheetName, string invoicesSheetName)
+    private void UpdateReport(Guid sourceId)
     {
-        const string sheetId = "1FsUmk_YRIeeGzFCX9tuUJCaLyRtjutX2ZGAEU1DMfJQ";
-        var request = _googleSheetValues.Get(sheetId, "C4:Z4");
-        var response = request.Execute();
+        try
+        {
+            _logger.LogDebug("{ProcessorType}: Starting Google Sheets report update for layer {LayerId}",
+                ProcessorType, sourceId);
 
-        var r2 = _db.Layers
+            const string sheetId = "1FsUmk_YRIeeGzFCX9tuUJCaLyRtjutX2ZGAEU1DMfJQ";
+
+            var processedLayer = GetProcessedLayerData(sourceId);
+            if (processedLayer == null)
+            {
+                throw new InvalidOperationException($"Processed layer {sourceId} not found");
+            }
+
+            var codesRow = GetCodesFromSheet(sheetId);
+            
+            UpdateMonthlyData(sheetId, processedLayer, codesRow);
+            UpdateYearSummary(sheetId, processedLayer, codesRow);
+            UpdateTimestamps(sheetId, processedLayer);
+            UpdateInvoicesData(sheetId, processedLayer);
+
+            _logger.LogInformation("{ProcessorType}: Successfully updated Google Sheets reports",
+                ProcessorType);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to update Google Sheets report for layer {LayerId}",
+                ProcessorType, sourceId);
+            throw;
+        }
+    }
+
+    private Layer? GetProcessedLayerData(Guid sourceId)
+    {
+        return _db.Layers
             .Where(x => x.Id == sourceId && !x.IsDeleted && !x.IsCancelled)
             .Include(x => x.Records)
             .AsNoTracking()
             .FirstOrDefault();
+    }
 
+    private IList<object> GetCodesFromSheet(string sheetId)
+    {
+        var request = _googleSheetValues.Get(sheetId, "C4:Z4");
+        var response = request.Execute();
+        return response.Values[0];
+    }
+
+    private void UpdateMonthlyData(string sheetId, Layer processedLayer, IList<object> codesRow)
+    {
         const int startRow = 6;
 
-        var codesRow = response.Values[0];
-        for (var i = 1; i <= 12; i++)
+        for (var month = 1; month <= 12; month++)
         {
             var values = new List<object>();
-            var month = i < 10 ? $"0{i}" : i.ToString();
-            var row = (startRow + i).ToString();
+            var monthStr = month < 10 ? $"0{month}" : month.ToString();
+            
             foreach (string code in codesRow)
             {
-                var record = r2!.Records?.SingleOrDefault(x => x.Code == $"{code}{month}");
-                if (record != null)
-                {
-                    values.Add(record.Value1!.Value);
-                }
-                else
-                {
-                    values.Add("0");
-                }
+                var record = processedLayer.Records?.SingleOrDefault(x => x.Code == $"{code}{monthStr}");
+                values.Add(record?.Value1?.ToString() ?? "0");
             }
+
             var valueRange = new ValueRange
             {
                 Values = new List<IList<object>> { values }
             };
-            var update = _googleSheetValues.Update(valueRange, sheetId, $"{reportSheetName}!C{row}:XZ{row}");
+
+            var row = (startRow + month).ToString();
+            var update = _googleSheetValues.Update(valueRange, sheetId, $"{ReportSheetName}!C{row}:XZ{row}");
             update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
             update.Execute();
-        }
 
-        // sum 
+            _logger.LogDebug("{ProcessorType}: Updated month {Month} data in Google Sheet",
+                ProcessorType, month);
+        }
+    }
+
+    private void UpdateYearSummary(string sheetId, Layer processedLayer, IList<object> codesRow)
+    {
+        const int startRow = 6;
         var valuesSum = new List<object>();
         var emptyRow = new List<object>();
-        var rowEmpty = (startRow + 13).ToString();
-        var rowSum = (startRow + 14).ToString();
+        
         foreach (string code in codesRow)
         {
-            var record = r2!.Records?.SingleOrDefault(x => x.Code == $"{code}13");
+            var record = processedLayer.Records?.SingleOrDefault(x => x.Code == $"{code}13");
             emptyRow.Add("");
-            if (record != null)
-            {
-                valuesSum.Add(record.Value1!.Value);
-            }
-            else
-            {
-                valuesSum.Add("0");
-            }
+            valuesSum.Add(record?.Value1?.ToString() ?? "0");
         }
-        // insert empty row before sum
+
+        // Insert empty row before sum
+        var rowEmpty = (startRow + 13).ToString();
         var valueRangeEmpty = new ValueRange
         {
             Values = new List<IList<object>> { emptyRow }
         };
-        var updateEmpty = _googleSheetValues.Update(valueRangeEmpty, sheetId, $"{reportSheetName}!C{rowEmpty}:XZ{rowEmpty}");
+        var updateEmpty = _googleSheetValues.Update(valueRangeEmpty, sheetId, $"{ReportSheetName}!C{rowEmpty}:XZ{rowEmpty}");
         updateEmpty.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         updateEmpty.Execute();
 
+        // Update sum row
+        var rowSum = (startRow + 14).ToString();
         var valueRangeSum = new ValueRange
         {
             Values = new List<IList<object>> { valuesSum }
         };
-        var updateSum = _googleSheetValues.Update(valueRangeSum, sheetId, $"{reportSheetName}!C{rowSum}:XZ{rowSum}");
+        var updateSum = _googleSheetValues.Update(valueRangeSum, sheetId, $"{ReportSheetName}!C{rowSum}:XZ{rowSum}");
         updateSum.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         updateSum.Execute();
 
-        // update time 
-        var timeUtc = new List<object>
-        {
-            r2!.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-        };
+        _logger.LogDebug("{ProcessorType}: Updated year summary data in Google Sheet", ProcessorType);
+    }
+
+    private void UpdateTimestamps(string sheetId, Layer processedLayer)
+    {
+        // Update UTC time
+        var timeUtc = processedLayer.ModifiedAt.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
         var valueRangeUtcTime = new ValueRange
         {
-            Values = new List<IList<object>> { timeUtc }
+            Values = new List<IList<object>> { new List<object> { timeUtc } }
         };
-        var updateTimeUtc = _googleSheetValues.Update(valueRangeUtcTime, sheetId, $"{reportSheetName}!G1");
+        var updateTimeUtc = _googleSheetValues.Update(valueRangeUtcTime, sheetId, $"{ReportSheetName}!G1");
         updateTimeUtc.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         updateTimeUtc.Execute();
 
+        // Update Warsaw time
         var warsawTimeZone = TimeZoneInfo.FindSystemTimeZoneById("Central European Standard Time");
-        var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(r2.ModifiedAt.ToUniversalTime(), warsawTimeZone);
-        var timeWarsaw = new List<object>
-        {
-            warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"))
-        };
+        var warsawTime = TimeZoneInfo.ConvertTimeFromUtc(processedLayer.ModifiedAt.ToUniversalTime(), warsawTimeZone);
+        var timeWarsaw = warsawTime.ToString("dd.MM.yyyy HH:mm:ss", CultureInfo.GetCultureInfo("pl-PL"));
         var valueRangeWarsawTime = new ValueRange
         {
-            Values = new List<IList<object>> { timeWarsaw }
+            Values = new List<IList<object>> { new List<object> { timeWarsaw } }
         };
-        var updateTimeWarsaw = _googleSheetValues.Update(valueRangeWarsawTime, sheetId, $"{reportSheetName}!G2");
+        var updateTimeWarsaw = _googleSheetValues.Update(valueRangeWarsawTime, sheetId, $"{ReportSheetName}!G2");
         updateTimeWarsaw.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         updateTimeWarsaw.Execute();
 
-        //invoices
+        _logger.LogDebug("{ProcessorType}: Updated timestamps in Google Sheet - UTC: {TimeUtc}, Warsaw: {TimeWarsaw}",
+            ProcessorType, timeUtc, timeWarsaw);
+    }
 
-        var invoices = r2.Records!.Where(x => x.Code!.Length == 12)
-            .OrderByDescending(x => x.Code);
+    private void UpdateInvoicesData(string sheetId, Layer processedLayer)
+    {
+        var invoices = processedLayer.Records!
+            .Where(x => x.Code!.Length == 12)
+            .OrderByDescending(x => x.Code)
+            .ToList();
 
         var invoicesValues = new List<IList<object>>();
         var cleanUpValues = new List<IList<object>>();
+
         foreach (var invoice in invoices)
         {
-            var invoiceDate =
-                DateTime.ParseExact(invoice.Code!.Substring(0, 8), "yyyyMMdd", CultureInfo.InvariantCulture)
-                    .ToString("dd.MM.yyyy", CultureInfo.GetCultureInfo("pl-PL"));
+            var invoiceDate = DateTime.ParseExact(invoice.Code!.Substring(0, 8), "yyyyMMdd", CultureInfo.InvariantCulture)
+                .ToString("dd.MM.yyyy", CultureInfo.GetCultureInfo("pl-PL"));
+            
             var invoiceRow = new List<object>
             {
-                invoiceDate,
-                "",
-                invoice.Desc1!,
-                invoice.Value1!
+                invoiceDate, "", invoice.Desc1!, invoice.Value1!
             };
             invoicesValues.Add(invoiceRow);
 
-            var cleanupRow = new List<object>
-            {
-                "", "", "", ""
-            };
+            var cleanupRow = new List<object> { "", "", "", "" };
             cleanUpValues.Add(cleanupRow);
         }
 
-
+        // Clear existing data
         var cleanupValueRange = new ValueRange { Values = cleanUpValues };
-        var cleanupInvoices = _googleSheetValues.Update(cleanupValueRange, sheetId, $"{invoicesSheetName}!A6:E");
-        cleanupInvoices.ValueInputOption =
-            SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        var cleanupInvoices = _googleSheetValues.Update(cleanupValueRange, sheetId, $"{InvoicesSheetName}!A6:E");
+        cleanupInvoices.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         cleanupInvoices.Execute();
 
-
+        // Update with new data
         var invoicesValueRange = new ValueRange { Values = invoicesValues };
-        var updateInvoices = _googleSheetValues.Update(invoicesValueRange, sheetId, $"{invoicesSheetName}!A6:E");
-        updateInvoices.ValueInputOption =
-            SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
+        var updateInvoices = _googleSheetValues.Update(invoicesValueRange, sheetId, $"{InvoicesSheetName}!A6:E");
+        updateInvoices.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
         updateInvoices.Execute();
 
+        _logger.LogDebug("{ProcessorType}: Updated {InvoiceCount} invoices in Google Sheet",
+            ProcessorType, invoices.Count);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T4SingleSourceProcessor.cs

@@ -1,8 +1,8 @@
 using Microsoft.EntityFrameworkCore;
-using DiunaBI.Core.Models;
-using DiunaBI.Core.Database.Context;
 using Microsoft.Extensions.Logging;
 using Google.Apis.Sheets.v4;
+using DiunaBI.Core.Models;
+using DiunaBI.Core.Database.Context;
 
 namespace DiunaBI.Plugins.Morska.Processors;
 
@@ -14,6 +14,12 @@ public class T4SingleSourceProcessor : MorskaBaseProcessor
     private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;
     private readonly ILogger<T4SingleSourceProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private int Month { get; set; }
+    private string? SourceLayer { get; set; }
+    private string? Source { get; set; }
+
     public T4SingleSourceProcessor(
         AppDbContext db,
         SpreadsheetsResource.ValuesResource googleSheetValues,
@@ -26,70 +32,196 @@ public class T4SingleSourceProcessor : MorskaBaseProcessor
 
     public override void Process(Layer processWorker)
     {
-        _logger.LogInformation("T4SingleSource: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
-
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var month = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
-        var sourceLayer = processWorker.Records?.SingleOrDefault(x => x.Code == "SourceLayer")?.Desc1;
-        if (sourceLayer == null)
+        try
         {
-            throw new Exception("SourceLayer record not found");
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
         }
 
-        var sourceImportWorker = _db.Layers.SingleOrDefault(x => x.Name == sourceLayer && !x.IsDeleted && !x.IsCancelled);
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load month
+        var monthStr = GetRecordValue(processWorker.Records, "Month");
+        if (string.IsNullOrEmpty(monthStr) || !int.TryParse(monthStr, out var month))
+        {
+            throw new InvalidOperationException("Month record not found or invalid");
+        }
+        Month = month;
+
+        // Load source layer
+        SourceLayer = GetRecordValue(processWorker.Records, "SourceLayer");
+        if (string.IsNullOrEmpty(SourceLayer))
+        {
+            throw new InvalidOperationException("SourceLayer record not found");
+        }
+
+        // Load source
+        Source = GetRecordValue(processWorker.Records, "Source");
+        if (string.IsNullOrEmpty(Source))
+        {
+            throw new InvalidOperationException("Source record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Month: {Month}, SourceLayer: {SourceLayer}, Source: {Source}",
+            ProcessorType, Year, Month, SourceLayer, Source);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Month < 1 || Month > 12) errors.Add($"Invalid month: {Month}");
+        if (string.IsNullOrEmpty(SourceLayer)) errors.Add("SourceLayer is required");
+        if (string.IsNullOrEmpty(Source)) errors.Add("Source is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Month: {Month}, Source: {Source}",
+            ProcessorType, Year, Month, Source);
+
+        // Get source import worker
+        var sourceImportWorker = GetSourceImportWorker();
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data source
+        var dataSource = GetDataSource(sourceImportWorker);
+
+        // Process records (simple copy)
+        var newRecords = ProcessRecords(dataSource);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetSourceImportWorker()
+    {
+        var sourceImportWorker = _db.Layers
+            .Where(x => x.Name == SourceLayer && !x.IsDeleted && !x.IsCancelled)
+            .FirstOrDefault();
+
         if (sourceImportWorker == null)
         {
-            throw new Exception("SourceImportWorker layer not found");
+            throw new InvalidOperationException($"SourceImportWorker layer not found: {SourceLayer}");
         }
 
-        var source = processWorker.Records?.SingleOrDefault(x => x.Code == "Source")?.Desc1;
-        if (source == null) 
-        {
-            throw new Exception("Source record not found");
-        }
+        _logger.LogDebug("{ProcessorType}: Found source import worker {LayerName} ({LayerId})",
+            ProcessorType, sourceImportWorker.Name, sourceImportWorker.Id);
 
+        return sourceImportWorker;
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month:D2}-{source}-T4";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/{Month:D2}-{Source}-T4";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
+        return processedLayer;
+    }
 
+    private Layer GetDataSource(Layer sourceImportWorker)
+    {
         var dataSource = _db.Layers
+            .Where(x => x.ParentId == sourceImportWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .Include(x => x.Records)
-            .Where(x => x.ParentId == sourceImportWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .AsNoTracking()
             .FirstOrDefault();
 
         if (dataSource == null)
         {
-            throw new Exception($"DataSource not found, {sourceImportWorker.Name}");
+            throw new InvalidOperationException($"DataSource not found for source import worker: {sourceImportWorker.Name}");
         }
 
-        var newRecords = dataSource.Records!.Select(record => new Record
+        _logger.LogDebug("{ProcessorType}: Found data source {LayerName} with {RecordCount} records",
+            ProcessorType, dataSource.Name, dataSource.Records?.Count ?? 0);
+
+        return dataSource;
+    }
+
+    private List<Record> ProcessRecords(Layer dataSource)
+    {
+        if (dataSource.Records == null || dataSource.Records.Count == 0)
+        {
+            _logger.LogWarning("{ProcessorType}: Data source contains no records", ProcessorType);
+            return new List<Record>();
+        }
+
+        var newRecords = dataSource.Records.Select(record => new Record
         {
             Id = Guid.NewGuid(),
             Code = record.Code,
@@ -99,30 +231,46 @@ public class T4SingleSourceProcessor : MorskaBaseProcessor
             ModifiedAt = DateTime.UtcNow
         }).ToList();
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Created {RecordCount} copied records from data source",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
         {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
         }
         else
         {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
         }
 
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
 
-        _logger.LogInformation("T4SingleSource: Successfully completed processing for {ProcessWorkerName} ({ProcessWorkerId})", 
-            processWorker.Name, processWorker.Id);
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
 
     private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -133,6 +281,12 @@ public class T4SingleSourceProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T4SingleSource: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }

src/Backend/DiunaBI.Plugins.Morska/Processors/T5LastValuesProcessor.cs

@@ -13,6 +13,12 @@ public class T5LastValuesProcessor : MorskaBaseProcessor
     private readonly AppDbContext _db;
     private readonly ILogger<T5LastValuesProcessor> _logger;
 
+    // Configuration properties loaded from layer records
+    private int Year { get; set; }
+    private int Month { get; set; }
+    private string? SourceLayer { get; set; }
+    private string? Source { get; set; }
+
     public T5LastValuesProcessor(
         AppDbContext db,
         ILogger<T5LastValuesProcessor> logger)
@@ -20,97 +26,279 @@ public class T5LastValuesProcessor : MorskaBaseProcessor
         _db = db;
         _logger = logger;
     }
+
     public override void Process(Layer processWorker)
     {
-        var year = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
-        var month = int.Parse(processWorker.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
-        var sourceLayer = processWorker.Records?.SingleOrDefault(x => x.Code == "SourceLayer")?.Desc1;
-        if (sourceLayer == null) throw new Exception("SourceLayer record not found");
-        var sourceImportWorker = _db.Layers.SingleOrDefault(x => x.Name == sourceLayer && !x.IsDeleted && !x.IsCancelled);
-        if (sourceImportWorker == null) throw new Exception("SourceImportWorker layer not found");
-        var source = processWorker.Records?.SingleOrDefault(x => x.Code == "Source")?.Desc1;
-        if (sourceLayer == null) throw new Exception("Source record not found");
+        try
+        {
+            _logger.LogInformation("{ProcessorType}: Starting processing for {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
 
+            // Load configuration from layer records
+            LoadConfiguration(processWorker);
+
+            // Validate required configuration
+            ValidateConfiguration();
+
+            // Perform the actual processing
+            PerformProcessing(processWorker);
+
+            _logger.LogInformation("{ProcessorType}: Successfully completed processing for {ProcessWorkerName}",
+                ProcessorType, processWorker.Name);
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, "{ProcessorType}: Failed to process {ProcessWorkerName} ({ProcessWorkerId})",
+                ProcessorType, processWorker.Name, processWorker.Id);
+            throw;
+        }
+    }
+
+    private void LoadConfiguration(Layer processWorker)
+    {
+        if (processWorker.Records == null)
+        {
+            throw new InvalidOperationException("ProcessWorker has no records");
+        }
+
+        // Load year
+        var yearStr = GetRecordValue(processWorker.Records, "Year");
+        if (string.IsNullOrEmpty(yearStr) || !int.TryParse(yearStr, out var year))
+        {
+            throw new InvalidOperationException("Year record not found or invalid");
+        }
+        Year = year;
+
+        // Load month
+        var monthStr = GetRecordValue(processWorker.Records, "Month");
+        if (string.IsNullOrEmpty(monthStr) || !int.TryParse(monthStr, out var month))
+        {
+            throw new InvalidOperationException("Month record not found or invalid");
+        }
+        Month = month;
+
+        // Load source layer
+        SourceLayer = GetRecordValue(processWorker.Records, "SourceLayer");
+        if (string.IsNullOrEmpty(SourceLayer))
+        {
+            throw new InvalidOperationException("SourceLayer record not found");
+        }
+
+        // Load source
+        Source = GetRecordValue(processWorker.Records, "Source");
+        if (string.IsNullOrEmpty(Source))
+        {
+            throw new InvalidOperationException("Source record not found");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration loaded - Year: {Year}, Month: {Month}, SourceLayer: {SourceLayer}, Source: {Source}",
+            ProcessorType, Year, Month, SourceLayer, Source);
+    }
+
+    private void ValidateConfiguration()
+    {
+        var errors = new List<string>();
+
+        if (Year < 2000 || Year > 3000) errors.Add($"Invalid year: {Year}");
+        if (Month < 1 || Month > 12) errors.Add($"Invalid month: {Month}");
+        if (string.IsNullOrEmpty(SourceLayer)) errors.Add("SourceLayer is required");
+        if (string.IsNullOrEmpty(Source)) errors.Add("Source is required");
+
+        if (errors.Any())
+        {
+            throw new InvalidOperationException($"Configuration validation failed: {string.Join(", ", errors)}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Configuration validation passed", ProcessorType);
+    }
+
+    private void PerformProcessing(Layer processWorker)
+    {
+        _logger.LogDebug("{ProcessorType}: Processing data for Year: {Year}, Month: {Month}, Source: {Source}",
+            ProcessorType, Year, Month, Source);
+
+        // Get source import worker
+        var sourceImportWorker = GetSourceImportWorker();
+
+        // Get or create processed layer
+        var processedLayer = GetOrCreateProcessedLayer(processWorker);
+
+        // Get data sources
+        var dataSources = GetDataSources(sourceImportWorker);
+
+        // Process records (get last values for each code)
+        var newRecords = ProcessRecords(dataSources);
+
+        // Save results
+        SaveProcessedLayer(processedLayer, newRecords);
+
+        _logger.LogInformation("{ProcessorType}: Successfully processed {RecordCount} records for layer {LayerName} ({LayerId})",
+            ProcessorType, newRecords.Count, processedLayer.Name, processedLayer.Id);
+    }
+
+    private Layer GetSourceImportWorker()
+    {
+        var sourceImportWorker = _db.Layers
+            .Where(x => x.Name == SourceLayer && !x.IsDeleted && !x.IsCancelled)
+            .FirstOrDefault();
+
+        if (sourceImportWorker == null)
+        {
+            throw new InvalidOperationException($"SourceImportWorker layer not found: {SourceLayer}");
+        }
+
+        _logger.LogDebug("{ProcessorType}: Found source import worker {LayerName} ({LayerId})",
+            ProcessorType, sourceImportWorker.Name, sourceImportWorker.Id);
+
+        return sourceImportWorker;
+    }
+
+    private Layer GetOrCreateProcessedLayer(Layer processWorker)
+    {
         var processedLayer = _db.Layers
-            .Where(x => x.ParentId == processWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == processWorker.Id && !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .FirstOrDefault();
 
-        var isNew = false;
         if (processedLayer == null)
         {
-            isNew = true;
             processedLayer = new Layer
             {
                 Id = Guid.NewGuid(),
                 Type = LayerType.Processed,
                 ParentId = processWorker.Id,
-                Number = _db.Layers.Count() + 1
+                Number = _db.Layers.Count() + 1,
+                CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
+                CreatedAt = DateTime.UtcNow,
+                ModifiedAt = DateTime.UtcNow
             };
-            processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month:D2}-{source}-T5";
-            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.Name = $"L{processedLayer.Number}-P-{Year}/{Month:D2}-{Source}-T5";
+
+            _logger.LogDebug("{ProcessorType}: Created new processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
+        }
+        else
+        {
             processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-            processedLayer.CreatedAt = DateTime.UtcNow;
             processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            _logger.LogDebug("{ProcessorType}: Using existing processed layer {LayerName}",
+                ProcessorType, processedLayer.Name);
         }
 
-        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
-        processedLayer.ModifiedAt = DateTime.UtcNow;
-
-        var newRecords = new List<Record>();
+        return processedLayer;
+    }
 
+    private List<Layer> GetDataSources(Layer sourceImportWorker)
+    {
         var dataSources = _db.Layers
             .Include(x => x.Records)
-            .Where(x => x.ParentId == sourceImportWorker.Id
-                        && !x.IsDeleted && !x.IsCancelled)
+            .Where(x => x.ParentId == sourceImportWorker.Id &&
+                       !x.IsDeleted && !x.IsCancelled)
             .OrderByDescending(x => x.CreatedAt)
             .AsNoTracking()
             .ToList();
 
-        if (dataSources.Count == 0) throw new Exception($"DataSource is empty, {sourceImportWorker.Name}");
+        if (dataSources.Count == 0)
+        {
+            throw new InvalidOperationException($"DataSource is empty for {sourceImportWorker.Name}");
+        }
 
-        var codes = dataSources.SelectMany(x => x.Records!).Select(x => x.Code).Distinct().ToList();
+        _logger.LogDebug("{ProcessorType}: Found {DataSourceCount} data sources for {SourceWorkerName}",
+            ProcessorType, dataSources.Count, sourceImportWorker.Name);
+
+        return dataSources;
+    }
+
+    private List<Record> ProcessRecords(List<Layer> dataSources)
+    {
+        var allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+        var codes = allRecords.Select(x => x.Code).Distinct().ToList();
+        var newRecords = new List<Record>();
+
+        _logger.LogDebug("{ProcessorType}: Processing {CodeCount} unique codes from {TotalRecordCount} total records",
+            ProcessorType, codes.Count, allRecords.Count);
 
         foreach (var code in codes)
         {
-            var lastRecord = dataSources.SelectMany(x => x.Records!).Where(x => x.Code == code).OrderByDescending(x => x.CreatedAt).FirstOrDefault();
+            var lastRecord = allRecords
+                .Where(x => x.Code == code)
+                .OrderByDescending(x => x.CreatedAt)
+                .FirstOrDefault();
+
             if (lastRecord == null) continue;
 
-            var processedRecord = new Record
-            {
-                Id = Guid.NewGuid(),
-                Code = code,
-                CreatedAt = DateTime.UtcNow,
-                ModifiedAt = DateTime.UtcNow
-            };
-
-            for (var i = 1; i < 33; i++)
-            {
-                if (ProcessHelper.GetValue(lastRecord, i) != null)
-                {
-                    ProcessHelper.SetValue(processedRecord, i, ProcessHelper.GetValue(lastRecord, i));
-                }
-            }
-
+            var processedRecord = CreateProcessedRecord(lastRecord);
             newRecords.Add(processedRecord);
+
+            _logger.LogDebug("{ProcessorType}: Processed code {Code} - using record from {CreatedAt}",
+                ProcessorType, code, lastRecord.CreatedAt);
         }
 
-        if (isNew)
+        _logger.LogDebug("{ProcessorType}: Created {NewRecordCount} processed records",
+            ProcessorType, newRecords.Count);
+
+        return newRecords;
+    }
+
+    private Record CreateProcessedRecord(Record lastRecord)
+    {
+        var processedRecord = new Record
+        {
+            Id = Guid.NewGuid(),
+            Code = lastRecord.Code,
+            CreatedAt = DateTime.UtcNow,
+            ModifiedAt = DateTime.UtcNow
+        };
+
+        // Copy all values from positions 1-32
+        for (var i = 1; i < 33; i++)
+        {
+            var value = ProcessHelper.GetValue(lastRecord, i);
+            if (value != null)
+            {
+                ProcessHelper.SetValue(processedRecord, i, value);
+            }
+        }
+
+        return processedRecord;
+    }
+
+    private void SaveProcessedLayer(Layer processedLayer, List<Record> newRecords)
+    {
+        var existsInDb = _db.Layers.Any(x => x.Id == processedLayer.Id);
+
+        if (!existsInDb)
+        {
             _db.Layers.Add(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Added new processed layer to database", ProcessorType);
+        }
         else
+        {
             _db.Layers.Update(processedLayer);
+            _logger.LogDebug("{ProcessorType}: Updated existing processed layer in database", ProcessorType);
+        }
+
         SaveRecords(processedLayer.Id, newRecords);
         _db.SaveChanges();
+
+        _logger.LogDebug("{ProcessorType}: Saved {RecordCount} records for layer {LayerId}",
+            ProcessorType, newRecords.Count, processedLayer.Id);
     }
-        private void SaveRecords(Guid layerId, ICollection<Record> records)
+
+    private void SaveRecords(Guid layerId, ICollection<Record> records)
     {
+        // Remove existing records for this layer
         var toDelete = _db.Records.Where(x => x.LayerId == layerId).ToList();
         if (toDelete.Count > 0)
         {
             _db.Records.RemoveRange(toDelete);
+            _logger.LogDebug("{ProcessorType}: Removed {DeletedCount} existing records for layer {LayerId}",
+                ProcessorType, toDelete.Count, layerId);
         }
 
+        // Add new records
         foreach (var record in records)
         {
             record.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
@@ -121,6 +309,12 @@ public class T5LastValuesProcessor : MorskaBaseProcessor
             _db.Records.Add(record);
         }
 
-        _logger.LogDebug("T3MultiSourceSummary: Saved {RecordCount} records for layer {LayerId}", records.Count, layerId);
+        _logger.LogDebug("{ProcessorType}: Added {RecordCount} new records for layer {LayerId}",
+            ProcessorType, records.Count, layerId);
+    }
+
+    private string? GetRecordValue(ICollection<Record> records, string code)
+    {
+        return records.FirstOrDefault(x => x.Code == code)?.Desc1;
     }
 }