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 T3MultiSourceCopySelectedCodesProcessor
    {
        private readonly AppDbContext db;
        private readonly SpreadsheetsResource.ValuesResource googleSheetValues;
        private readonly LayersController controller;

        public T3MultiSourceCopySelectedCodesProcessor(
            AppDbContext _db,
            SpreadsheetsResource.ValuesResource _googleSheetValues,
            LayersController _controller)
        {
            db = _db;
            googleSheetValues = _googleSheetValues;
            controller = _controller;
        }

        public void process(Layer processWorker)
        {
            int year = int.Parse(processWorker!.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
            int month = int.Parse(processWorker!.Records?.SingleOrDefault(x => x.Code == "Month")?.Desc1!);
            List<Record>? sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
            if (sources!.Count() == 0)
            {
                throw new Exception("Source record not found");
            }
            string? codes = processWorker.Records?.SingleOrDefault(x => x.Code == "Codes")?.Desc1;
            if (codes == null)
            {
                throw new Exception("Codes record not found");
            }
            // create array of integers from string codes where: '501-503;505-505;510-512' -> [501,502,503,505,510,511,512]
            List<int> codesList = ProcessHelper.parseCodes(codes);

            Layer? processedLayer = db.Layers
                                    .Where(x => x.ParentId == processWorker!.Id
                                                && !x.IsDeleted)
                                    .OrderByDescending(x => x.CreatedAt)
                                    .FirstOrDefault();

            bool isNew = false;
            if (processedLayer == null)
            {
                isNew = true;
                processedLayer = new Layer
                {
                    Id = Guid.NewGuid(),
                    Source = "",
                    Type = LayerType.processed,
                    ParentId = processWorker!.Id,
                    Number = db.Layers.Count() + 1,
                };
                processedLayer.Name = $"L{processedLayer.Number}-P-{year}/{month}-AB-T3";
                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.Sources = new List<ProcessSource>();
            processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
            processedLayer.ModifiedAt = DateTime.UtcNow;

            List<Layer> dataSources = new List<Layer>();
            foreach (Record source in sources!)
            {
                Layer? dataSource = db.Layers.Where(x =>
                    x.Type == LayerType.processed &&
                    !x.IsDeleted &&
                    x.Name != null && x.Name.Contains($"{year}/{month}-{source.Desc1}-T3")
                    )
                    .Include(x => x.Records)
                    .FirstOrDefault();
                if (dataSource != null)
                {
                    dataSources.Add(dataSource);
                }
            }
            if (dataSources.Count == 0)
            {
                throw new Exception($"DataSources are empty");
            }


            List<Record> newRecords = dataSources
                .SelectMany(x => x.Records!)
                .Where(x => codesList.Contains(int.Parse(x.Code!)))
                .Select(x =>
                {
                    Record 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;
                })
                .ToList();
            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();
        }

        public void updateReport()
        {
            string sheetId = "1pph-XowjlK5CIaCEV_A5buK4ceJ0Z0YoUlDI4VMkhhA";
            string sheetName = "Raport_AB_Eksport";
            SpreadsheetsResource.ValuesResource.GetRequest request = googleSheetValues.Get(sheetId, "C4:CH4");
            var response = request.Execute();

            Layer? january = db.Layers
                .Where(x => x.Number == 572)
                .Include(x => x.Records)
                .FirstOrDefault();

            Layer? february = db.Layers
                .Where(x => x.Number == 742)
                .Include(x => x.Records)
                .FirstOrDefault();

            Layer? march = db.Layers
                .Where(x => x.Number == 822)
                .Include(x => x.Records)
                .FirstOrDefault();
            List<object> januaryValues = new List<object>();
            List<object> februaryValues = new List<object>();
            List<object> marchValues = new List<object>();

            var codesRow = response.Values[0];
            foreach (string code in codesRow)
            {
                Record? januaryRecord = january!.Records?.SingleOrDefault(x => x.Code == code);
                Record? februaryRecord = february!.Records?.SingleOrDefault(x => x.Code == code);
                Record? marchRecord = march!.Records?.SingleOrDefault(x => x.Code == code);
                if (januaryRecord != null)
                {
                    double? januaryValue = ProcessHelper.getValue(januaryRecord, 32);
                    januaryValues.Add(januaryValue!.Value);
                }
                else
                {
                    januaryValues.Add("");
                }
                if (februaryRecord != null)
                {
                    double? februaryValue = ProcessHelper.getValue(februaryRecord, 32);
                    februaryValues.Add(februaryValue!.Value);
                }
                else
                {
                    februaryValues.Add("");
                }
                if (marchRecord != null)
                {
                    double? marchValue = ProcessHelper.getValue(marchRecord, 32);
                    marchValues.Add(marchValue!.Value);
                }
                else
                {
                    marchValues.Add("");
                }
            }

            ValueRange januaryValueRange = new ValueRange
            {
                Values = new List<IList<object>> { januaryValues }
            };
            SpreadsheetsResource.ValuesResource.UpdateRequest updateJanuary = googleSheetValues.Update(januaryValueRange, sheetId, $"{sheetName}!C7:CH7");
            updateJanuary.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
            updateJanuary.Execute();

            ValueRange februaryValueRange = new ValueRange
            {
                Values = new List<IList<object>> { februaryValues }
            };
            SpreadsheetsResource.ValuesResource.UpdateRequest updateFebruary = googleSheetValues.Update(februaryValueRange, sheetId, $"{sheetName}!C8:CH8");
            updateFebruary.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
            updateFebruary.Execute();

            ValueRange marchValueRange = new ValueRange
            {
                Values = new List<IList<object>> { marchValues }
            };
            SpreadsheetsResource.ValuesResource.UpdateRequest updateMarch = googleSheetValues.Update(marchValueRange, sheetId, $"{sheetName}!C9:CH9");
            updateMarch.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.USERENTERED;
            updateMarch.Execute();
        }
    }
}