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

namespace Indotalent.Features.Organization.Department.Cqrs;

public class UpdateDepartmentRequest : CreateDepartmentRequest
{
    public string? Id { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

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

public record UpdateDepartmentCommand(UpdateDepartmentRequest Data) : IRequest<UpdateDepartmentResponse>;

public class UpdateDepartmentHandler : IRequestHandler<UpdateDepartmentCommand, UpdateDepartmentResponse>
{
    private readonly AppDbContext _context;

    public UpdateDepartmentHandler(AppDbContext context) => _context = context;

    public async Task<UpdateDepartmentResponse> Handle(UpdateDepartmentCommand request, CancellationToken cancellationToken)
    {
        var isExists = await _context.Department
            .AnyAsync(x => x.CostCenter == request.Data.CostCenter && x.Id != request.Data.Id, cancellationToken);

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

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

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

        entity.CostCenter = request.Data.CostCenter;
        entity.Name = request.Data.Name;
        entity.Description = request.Data.Description;
        entity.HeadOfDeptartment = request.Data.HeadOfDeptartment;
        entity.OtherInformation1 = request.Data.OtherInformation1;
        entity.OtherInformation2 = request.Data.OtherInformation2;
        entity.OtherInformation3 = request.Data.OtherInformation3;

        await _context.SaveChangesAsync(cancellationToken);

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