using System.Globalization;
using Google.Apis.Sheets.v4;
using DiunaBI.Core.Models;
using DiunaBI.Database.Context;

namespace DiunaBI.Plugins.Morska.Importers;

public class MorskaD1Importer : MorskaBaseImporter
{
    public override string ImporterType => "MorskaD1";

    private readonly AppDbContext _db;
    private readonly SpreadsheetsResource.ValuesResource _googleSheetValues;

    public MorskaD1Importer(
        AppDbContext db,
        SpreadsheetsResource.ValuesResource googleSheetValues)
    {
        _db = db;
        _googleSheetValues = googleSheetValues;
    }

    public override 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 year = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportYear")?.Desc1;
        if (year == null)
        {
            throw new Exception($"ImportYear not found, {importWorker.Name}");
        }
        var month = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportMonth")?.Desc1;
        if (month == null)
        {
            throw new Exception($"ImportMonth not found, {importWorker.Name}");
        }
        var name = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportName")?.Desc1;
        if (name == 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 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 > 1 && (string)t[0] != string.Empty
                        select new Record
                        {
                            Id = Guid.NewGuid(),
                            Code = t[0].ToString(),
                            Value1 = IndexExists(t, 3) ? ParseValue(t[3]?.ToString()) : null,
                            Value2 = IndexExists(t, 4) ? ParseValue(t[4]?.ToString()) : null,
                            Value3 = IndexExists(t, 5) ? ParseValue(t[5]?.ToString()) : null,
                            Value4 = IndexExists(t, 6) ? ParseValue(t[6]?.ToString()) : null,
                            Value5 = IndexExists(t, 7) ? ParseValue(t[7]?.ToString()) : null,
                            Value6 = IndexExists(t, 8) ? ParseValue(t[8]?.ToString()) : null,
                            Value7 = IndexExists(t, 9) ? ParseValue(t[9]?.ToString()) : null,
                            Value8 = IndexExists(t, 10) ? ParseValue(t[10]?.ToString()) : null,
                            Value9 = IndexExists(t, 11) ? ParseValue(t[11]?.ToString()) : null,
                            Value10 = IndexExists(t, 12) ? ParseValue(t[12]?.ToString()) : null,
                            Value11 = IndexExists(t, 13) ? ParseValue(t[13]?.ToString()) : null,
                            Value12 = IndexExists(t, 14) ? ParseValue(t[14]?.ToString()) : null,
                            Value13 = IndexExists(t, 15) ? ParseValue(t[15]?.ToString()) : null,
                            Value14 = IndexExists(t, 16) ? ParseValue(t[16]?.ToString()) : null,
                            Value15 = IndexExists(t, 17) ? ParseValue(t[17]?.ToString()) : null,
                            CreatedAt = DateTime.UtcNow,
                            ModifiedAt = DateTime.UtcNow
                        }).ToList();
        _db.Layers.Add(layer);
        // TODO: Save records to the 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;
        }
    }
    private bool IndexExists(IList<object> array, int index)
    {
        return array != null && index >= 0 && index < array.Count;
    }
}