using Azure;
using Google.Apis.Sheets.v4;
using Google.Apis.Sheets.v4.Data;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json.Linq;
using System.Globalization;
using WebAPI.Controllers;
using WebAPI.Models;

namespace WebAPI.dataProcessors
{
    public class CopyProcessor
    {
        private AppDbContext db;
        private SpreadsheetsResource.ValuesResource googleSheetValues;
        private LayersController controller;

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

        public void process(Layer sourceImportWorker, Guid? parentId)
        {
            string? sheetId = sourceImportWorker.Records!.Where(x => x.Code == "SheetId").FirstOrDefault()?.Desc1;
            if (sheetId == null)
            {
                throw new Exception($"SheetId not found, {sourceImportWorker.Name}");
            }
            string? sheetTabName = sourceImportWorker.Records!.Where(x => x.Code == "SheetTabName").FirstOrDefault()?.Desc1;
            if (sheetId == null)
            {
                throw new Exception($"SheetTabName not found, {sourceImportWorker.Name}");
            }
            string? importYearCell = sourceImportWorker.Records!.Where(x => x.Code == "ImportYear").FirstOrDefault()?.Desc1;
            if (importYearCell == null)
            {
                throw new Exception($"ImportYear not found, {sourceImportWorker.Name}");
            }
            string? importMonthCell = sourceImportWorker.Records!.Where(x => x.Code == "ImportMonth").FirstOrDefault()?.Desc1;
            if (importMonthCell == null)
            {
                throw new Exception($"ImportMonth not found, {sourceImportWorker.Name}");
            }
            string? importNameCell = sourceImportWorker.Records!.Where(x => x.Code == "ImportName").FirstOrDefault()?.Desc1;
            if (importNameCell == null)
            {
                throw new Exception($"ImportName not found, {sourceImportWorker.Name}");
            }
            var nameResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importNameCell}:{importNameCell}").Execute();
            string? name = nameResponse.Values[0][0].ToString();
            if (name == null)
            {
                throw new Exception($"ImportName cell is empty, {sourceImportWorker.Name}");
            }
            var yearResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importYearCell}:{importYearCell}").Execute();
            string? year = yearResponse.Values[0][0].ToString();
            if (year == null)
            {
                throw new Exception($"ImportYear cell is empty, {sourceImportWorker.Name}");
            }
            var monthResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importMonthCell}:{importMonthCell}").Execute();
            string? month = monthResponse.Values[0][0].ToString();
            if (month == null)
            {
                throw new Exception($"ImportMonth cell is empty, {sourceImportWorker.Name}");
            }

            Layer? processedLayer = db.Layers
                                    .Where(x => x.ParentId == parentId)
                                    .OrderByDescending(x => x.CreatedAt)
                                    .FirstOrDefault();

            if (processedLayer == null)
            {
                processedLayer = new Layer
                {
                    Id = Guid.NewGuid(),
                    Source = "",
                    Type = LayerType.processed,
                    ParentId = parentId,
                    Number = db.Layers.Count() + 1,
                };
                processedLayer.Name = $"L{processedLayer.Number}-P-{name}-{year}/{month}-{DateTime.Now.ToString("yyyyMMddHHmm")}";
                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;
                db.Layers.Add(processedLayer);
            }

            processedLayer.Records = new List<Record>();
            processedLayer.Sources = new List<ProcessSource>();
            processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
            processedLayer.ModifiedAt = DateTime.UtcNow;


            Layer dataSource = db.Layers
                .Include(x => x.Records)
                .Where(x => x.ParentId == sourceImportWorker.Id && !x.IsDeleted)
                .OrderByDescending(x => x.CreatedAt)
                .First();
            /*
            processedLayer.Sources.Add(new ProcessSource
            {
                LayerId = processedLayer.Id,
                SourceId = dataSource.Id
            });
            */

            foreach (Record source in dataSource.Records!)
            {
                Record record = new Record
                {
                    Id = Guid.NewGuid(),
                    Code = source.Code,
                    Value1 = source.Value1,
                    CreatedAt = DateTime.UtcNow,
                    ModifiedAt = DateTime.UtcNow
                };
                processedLayer.Records.Add(record);
            }
            controller.SaveRecords(processedLayer.Id, processedLayer.Records, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));
            db.Layers.Update(processedLayer);
            db.SaveChanges();
        }
    }
}