using System.Globalization;
using Google.Apis.Sheets.v4;
using WebAPI;
using WebAPI.Controllers;
using WebAPI.Models;

namespace DiunaBIWebAPI.dataImporters;

public class MorskaD1Importer(
    AppDbContext db,
    SpreadsheetsResource.ValuesResource googleSheetValues,
    LayersController controller)
{
    public void Import(Layer importWorker)
    {
        var sheetId = importWorker.Records!.FirstOrDefault(x => x.Code == "SheetId")?.Desc1;
        if (sheetId == null)
        {
            throw new Exception($"SheetId not found, {importWorker.Name}");
        }
        var sheetTabName = importWorker.Records!.FirstOrDefault(x => x.Code == "SheetTabName")?.Desc1;
        if (sheetTabName == null)
        {
            throw new Exception($"SheetTabName not found, {importWorker.Name}");
        }
        var importYearCell = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportYear")?.Desc1;
        if (importYearCell == null)
        {
            throw new Exception($"ImportYear not found, {importWorker.Name}");
        }
        var importMonthCell = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportMonth")?.Desc1;
        if (importMonthCell == null)
        {
            throw new Exception($"ImportMonth not found, {importWorker.Name}");
        }
        var importNameCell = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportName")?.Desc1;
        if (importNameCell == null)
        {
            throw new Exception($"ImportName not found, {importWorker.Name}");
        }

        var dataRange = importWorker.Records!.FirstOrDefault(x => x.Code == "DataRange")?.Desc1;
        if (dataRange == null)
        {
            throw new Exception($"DataRange not found, {importWorker.Name}");
        }

        var nameResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importNameCell}:{importNameCell}").Execute();
        var name = nameResponse.Values?[0][0].ToString();
        if (name == null)
        {
            throw new Exception($"ImportName cell is empty, {importWorker.Name}");
        }
        var yearResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importYearCell}:{importYearCell}").Execute();
        var year = yearResponse.Values[0][0].ToString();
        if (year == null)
        {
            throw new Exception($"ImportYear cell is empty, {importWorker.Name}");
        }
        var monthResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{importMonthCell}:{importMonthCell}").Execute();
        var month = monthResponse.Values[0][0].ToString();
        if (month == null)
        {
            throw new Exception($"ImportMonth cell is empty, {importWorker.Name}");
        }
        var layer = new Layer
        {
            Number = db.Layers.Count() + 1,
            ParentId = importWorker.Id,
            Type = LayerType.Import,
            CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
            ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"),
            CreatedAt = DateTime.UtcNow,
            ModifiedAt = DateTime.UtcNow
        };
        layer.Name = $"L{layer.Number}-I-{name}-{year}/{month}-{DateTime.Now.ToString("yyyyMMddHHmm", CultureInfo.InvariantCulture)}";

        var dataRangeResponse = googleSheetValues.Get(sheetId, $"{sheetTabName}!{dataRange}").Execute();
        var data = dataRangeResponse.Values;
        var newRecords = (from t in data
        where t.Count > 13 && (string)t[0] != string.Empty 
        select new Record
        {
            Id = Guid.NewGuid(),
            Code = t[0].ToString(),
            Value1 = ParseValue(t[3].ToString()),
            Value2 = ParseValue(t[4].ToString()),
            Value3 = ParseValue(t[5].ToString()),
            Value4 = ParseValue(t[6].ToString()),
            Value5 = ParseValue(t[7].ToString()),
            Value6 = ParseValue(t[8].ToString()),
            Value7 = ParseValue(t[9].ToString()),
            Value8 = ParseValue(t[10].ToString()),
            Value9 = ParseValue(t[11].ToString()),
            Value10 = ParseValue(t[12].ToString()),
            Value11 = ParseValue(t[13].ToString()),
            Value12 = ParseValue(t[14].ToString()),
            CreatedAt = DateTime.UtcNow,
            ModifiedAt = DateTime.UtcNow
        }).ToList();
        db.Layers.Add(layer);
        controller.SaveRecords(layer.Id, newRecords, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));
        db.SaveChanges();
    }
    
    private double? ParseValue(string? value)
    {
        if (string.IsNullOrEmpty(value) || value == "#DIV/0!") return null;
        value = new string(value.Where(c => char.IsDigit(c) || c == '.' || c == ',' || c == '-').ToArray());
        try
        {
            double.TryParse(value, CultureInfo.GetCultureInfo("pl-PL"), out var result);
            return result;
        }
        catch (FormatException)
        {
            return null;
        }
    }
}