using Indotalent.ConfigBackEnd.Exceptions;
using Indotalent.Infrastructure.Database;
using MediatR;
using Microsoft.EntityFrameworkCore;

namespace Indotalent.Features.Setting.Currency.Cqrs;

public class UpdateCurrencyRequest
{
    public string? Id { get; set; }
    public string? Code { get; set; }
    public string? Name { get; set; }
    public string? Symbol { get; set; }
    public string? CountryOwner { get; set; }
    public string? Description { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

public class UpdateCurrencyResponse
{
    public string? Id { get; set; }
    public bool Success { get; set; }
}

public record UpdateCurrencyCommand(UpdateCurrencyRequest Data) : IRequest<UpdateCurrencyResponse>;

public class UpdateCurrencyHandler : IRequestHandler<UpdateCurrencyCommand, UpdateCurrencyResponse>
{
    private readonly AppDbContext _context;

    public UpdateCurrencyHandler(AppDbContext context)
    {
        _context = context;
    }

    public async Task<UpdateCurrencyResponse> Handle(UpdateCurrencyCommand request, CancellationToken cancellationToken)
    {
        var isExists = await _context.Currency
            .AnyAsync(x => x.Code == request.Data.Code && x.Id != request.Data.Id, cancellationToken);

        if (isExists)
        {
            throw new AlreadyExistsException("Currency", request.Data.Code ?? string.Empty);
        }

        var entity = await _context.Currency
            .FirstOrDefaultAsync(x => x.Id == request.Data.Id, cancellationToken);

        if (entity == null)
        {
            return new UpdateCurrencyResponse { Id = request.Data.Id, Success = false };
        }

        entity.Code = request.Data.Code;
        entity.Name = request.Data.Name;
        entity.Symbol = request.Data.Symbol;
        entity.CountryOwner = request.Data.CountryOwner;
        entity.Description = request.Data.Description;
        await _context.SaveChangesAsync(cancellationToken);

        return new UpdateCurrencyResponse
        {
            Id = entity.Id,
            Success = true
        };
    }
}