using AutoMapper;
using Microsoft.EntityFrameworkCore;
using SytelineSaAppEfDataModel.Dtos;
using SytelineSaAppEfDataModel.Entities;

namespace SytelineSaAppEfDataModel.Services;

public class MaterialTransactionService(SytelineSaAppDbContext context, IMapper mapper) : IMaterialTransactionService
{
    public async Task<IEnumerable<MaterialTransactionDto>> GetAll()
    {
        return await context.MaterialTransactions.Select(x => mapper.Map<MaterialTransactionDto>(x)).ToListAsync();
    }

    public async Task<MaterialTransactionDto?> GetByWzNumber(string wzNumber)
    {
        return await context.MaterialTransactions
            .Where(x => x.MTGroupNum == wzNumber)
            .Select(x => mapper.Map<MaterialTransactionDto>(x)).FirstOrDefaultAsync();
    }

    public async Task<IEnumerable<MaterialTransactionDto>> GetByWzNumbers(ISet<string> wzNumbers)
    {
        if (!wzNumbers.Any())
            return Enumerable.Empty<MaterialTransactionDto>();

        var wzNumbersList = string.Join(",", wzNumbers.Select(w => $"'{w}'"));

        var sql = $@"
        SELECT z.*
        FROM ZPL_InternalNum_Matltran z
        WHERE z.MTGroupNum <> ''
        AND z.MTGroupNum IN ({wzNumbersList})";

        IList<MaterialTransaction> result = await context.MaterialTransactions
            .FromSqlRaw(sql)
            .AsNoTracking()
            .ToListAsync();

        return result.Select(mapper.Map<MaterialTransactionDto>);
    }

    public async Task<IEnumerable<MaterialTransactionDto>> GetByOrderNumber(string orderNumber)
    {
        return await context.MaterialTransactions.Where(x => x.RefNum == orderNumber).OrderByDescending(x => x.TransDate)
            .Select(x => mapper.Map<MaterialTransactionDto>(x)).ToListAsync();
    }
    
    public async Task<IEnumerable<MaterialTransactionDto>> GetOrderNumbersByWz(ISet<string> wzNumbers)
    {
        if (!wzNumbers.Any())
            return [];

        var wzNumbersList = string.Join(",", wzNumbers.Select(w => $"'{w}'"));

        var sql = $@"
        SELECT z.*
        FROM ZPL_InternalNum_Matltran z
        WHERE z.MTGroupNum <> ''
        AND z.MTGroupNum IN ({wzNumbersList})";

        IList<MaterialTransaction> result = await context.MaterialTransactions
            .FromSqlRaw(sql)
            .AsNoTracking()
            .ToListAsync();

        return result.Select(x => mapper.Map<MaterialTransactionDto>(x));
    }

    public async Task<IEnumerable<MaterialTransactionDto>> GetByCustomerNumber(string customerNumber, int customerSequence)
    {
        IList<string> coNumbers = await context.CustomerOrders
            .Where(x => x.CustNum == customerNumber && x.CustSeq == customerSequence && (x.Stat == "P" || x.Stat == "O"))
            .Select(x => x.CoNum).ToListAsync();

        List<MaterialTransactionDto> result = new List<MaterialTransactionDto>();

        foreach (string coNumber in coNumbers)
        {
            IEnumerable<MaterialTransactionDto> materialTransactions = await GetByOrderNumber(coNumber);
            result.AddRange(materialTransactions);
        }

        return result.OrderByDescending(x => x.CreateDate);
    }

    public async Task<MaterialTransactionDto?> GetByPartNumber(string partNumber)
    {
        return await context.MaterialTransactions
            .Where(x => x.NR_KARTY_KONTROLNEJ == partNumber)
            .Select(x => mapper.Map<MaterialTransactionDto>(x)).FirstOrDefaultAsync();
    }
}