using System.Globalization;
using System.Text;
using System.Text.Json;
using DiunaBI.Core.Models;
using DiunaBI.Database.Context;

namespace DiunaBI.Plugins.Morska.Importers;

public class MorskaD3Importer(
    AppDbContext db)
{
    public void Import(Layer importWorker)
    {
        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($"ImportName not found, {importWorker.Name}");
        }
        var type = importWorker.Records!.FirstOrDefault(x => x.Code == "ImportType")?.Desc1;
        if (name == null)
        {
            throw new Exception($"ImportType not found, {importWorker.Name}");
        }
        var dataInbox = db.DataInbox.OrderByDescending(x => x.CreatedAt).FirstOrDefault(x => x.Name == type);
        if (dataInbox == null)
        {
            throw new Exception($"DataInbox not found, {type}");
        }
        var data = Convert.FromBase64String(dataInbox.Data);
        var tst = Encoding.UTF8.GetString(data);
        var records = JsonSerializer.Deserialize<List<Record>>(Encoding.UTF8.GetString(data));
        if (records == null)
        {
            throw new Exception($"DataInbox.Data is empty, {dataInbox.Name}");
        }
        records = records.Where(x => x.Code!.StartsWith($"{year}{month}")).ToList();
        if (records.Count == 0)
        {
            throw new Exception($"No records found for {year}{month}");
        }
        records = records.Select(x =>
        {
            x.Id = Guid.NewGuid();
            x.CreatedAt = DateTime.UtcNow;
            x.ModifiedAt = DateTime.UtcNow;
            return x;
        }).ToList();
        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)}";

        db.Layers.Add(layer);
        // TODO: Save records to the layer
        //controller.SaveRecords(layer.Id, records, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));
        db.SaveChanges();
    }
}