using Microsoft.Extensions.Logging;
using ProjectGarage.Repositories;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ProjectGarage.Reports;

public class TableReport
{
    private readonly IReplenishmentRepository _replenishmentRepository;
    private readonly ITransportationRepository _transportationRepository;
    private readonly ILogger<TableReport> _logger;
    internal static readonly string[] item = ["Водитель", "Дата", "Кол-во пришло", "Кол-во ушло"];
    public TableReport(IReplenishmentRepository replenishmentRepository, 
        ITransportationRepository transportationRepository, ILogger<TableReport> logger)
    {
        _replenishmentRepository = replenishmentRepository ?? 
            throw new ArgumentNullException(nameof(replenishmentRepository));
        _transportationRepository = transportationRepository ?? 
            throw new ArgumentNullException(nameof(transportationRepository));
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
    }
    public bool CreateTable(string filePath, int fuelId, DateTime startDate, DateTime endDate)
    {
        try
        {
            new ExcelBuilder(filePath)
                .AddHeader("Сводка по движению корма", 0, 4)
                .AddParagraph($"за период c {startDate:dd.MM.yyyy} по {endDate: dd.MM.yyyy}", 0)
                .AddTable([10, 10, 15, 15], GetData(fuelId, startDate, endDate))
                .Build();
            return true;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Ошибка при формировании документа");
            return false;
        }
    }

    private List<string[]> GetData(int fuelId, DateTime startDate, DateTime endDate)
    {
        var data = _replenishmentRepository
            .ReadFuelReplenishment(dateForm: startDate, dateTo: endDate, fuelId: fuelId)
            .Select(x => new {
                x.DriverName, 
                Date = x.ReplenishmentDate,
                CountIn = x.FuelFuelReplenishments.
                FirstOrDefault(y => y.FuelId == fuelId)?.Amount,
                CountOut = (int?)null
        })
        .Union(
            _transportationRepository
            .ReadTransportation(dateForm: startDate, dateTo: endDate, fuelId: fuelId)
            .Where(x => x.TransportationDate >= startDate &&
            x.TransportationDate <= endDate && x.FuelId == fuelId)
            .Select(x => new {
                x.DriverName,
                Date = x.TransportationDate,
                CountIn = (int?)null,
                CountOut = (int?)x.Amount
        }))
        .OrderBy(x => x.Date);
        return
        new List<string[]>() { item }
        .Union(
        data
        .Select(x => new string[] {
            x.DriverName.ToString(), x.Date.ToString("dd.MM.yyyy"), x.CountIn?.ToString("N0") ??
            string.Empty, x.CountOut?.ToString("N0") ?? string.Empty}))
        .Union(
        [["Всего", "", data.Sum(x => x.CountIn ?? 0).ToString("N0"), 
                data.Sum(x => x.CountOut ?? 0).ToString("N0")]])
        .ToList();
    }
}