using System.Globalization;
using System.Text.RegularExpressions;
using DiunaBIWebAPI.dataProcessors;
using Google.Apis.Sheets.v4;
using Google.Apis.Sheets.v4.Data;
using Microsoft.EntityFrameworkCore;
using WebAPI.Controllers;
using WebAPI.Models;

namespace WebAPI.dataProcessors;

public class T1R3Processor(
    AppDbContext db,
    LayersController controller,
    SpreadsheetsResource.ValuesResource googleSheetValues)
{
    public 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)
        {
            throw new Exception("Source record not found");
        }
        
        var processedLayer = db.Layers
            .Where(x => x.ParentId == processWorker.Id
                        && !x.IsDeleted)
            .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
            };
            processedLayer.Name = $"L{processedLayer.Number}-P-{year}-R3-T1";
            processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
            processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
            processedLayer.CreatedAt = DateTime.UtcNow;
            processedLayer.ModifiedAt = DateTime.UtcNow;
        }
        
        processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
        processedLayer.ModifiedAt = DateTime.UtcNow;


        var newRecords = new List<Record>();
        
        string pattern = @$"^L\d+-P-{year}/\d+-{source}-T5$";
        var dataSources = db.Layers
            .Where(x => !x.IsDeleted)
            .Include(layer => layer.Records!) 
            .AsEnumerable()          
            .Where(x => Regex.IsMatch(x.Name!, pattern)) 
            .ToList();

        foreach (var dataSource in dataSources)
        {
            var month = ProcessHelper.ExtractMonthFromLayerName(dataSource.Name!);
            if (month == null)
            {
                throw new Exception($"Month not found: {dataSource.Name}");
            }

            foreach (var record in dataSource.Records!)
            {
                if (record.Value1 == null) continue;
                for (var i = 1; i < 33; i++)
                {
                    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);
                }
            }
        }
        
        if (isNew)
        {
            db.Layers.Add(processedLayer);
        }
        else
        {
            db.Layers.Update(processedLayer);
        }

        controller.SaveRecords(processedLayer.Id, newRecords, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));
        db.SaveChanges();
        
        UpdateReport();
    }
    
        private void UpdateReport()
    {
        const string sheetId = "10Xo8BBF92nM7_JzzeOuWp49Gz8OsYuCxLDOeChqpW_8";

        var r3 = db.Layers
            .Where(x => x.Number == 3954)
            .Include(x => x.Records)
            .FirstOrDefault();

        for (var i = 1; i <= 12; i++)
        {
            var sheetName = ProcessHelper.GetSheetName(i, 2024);
            ValueRange? dataRangeResponse;
            try
            {
                dataRangeResponse = googleSheetValues.Get(sheetId, $"{sheetName}!A7:A200").Execute();
            }
            catch
            {
                continue; // Sheet not exist
            }
            
            if (dataRangeResponse == null) continue; // Sheet not exist
            var data = dataRangeResponse.Values;
            
            var updateValueRange = new ValueRange
            {
                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);
            }
            
            dataRangeResponse.Values = data;
            var update = googleSheetValues.Update(updateValueRange, sheetId, $"{sheetName}!C7:Q200");
            update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
            update.Execute();
            
            // 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);
        
            var updateTimeUtc = googleSheetValues.Update(valueRangeTime, sheetId, $"{sheetName}!G1:G2");
            updateTimeUtc.ValueInputOption =
                SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
            updateTimeUtc.Execute();
        }
    }
}