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

namespace Indotalent.Features.Performance.Promotion.Cqrs;

public class UpdatePromotionRequest : CreatePromotionRequest
{
    public string? Id { get; set; }
    public string? EmployeeCode { get; set; }
    public string? EmployeeName { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

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

public record UpdatePromotionCommand(UpdatePromotionRequest Data) : IRequest<UpdatePromotionResponse>;

public class UpdatePromotionHandler : IRequestHandler<UpdatePromotionCommand, UpdatePromotionResponse>
{
    private readonly AppDbContext _context;

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

    public async Task<UpdatePromotionResponse> Handle(UpdatePromotionCommand request, CancellationToken cancellationToken)
    {
        var entity = await _context.Promotion
            .FirstOrDefaultAsync(x => x.Id == request.Data.Id, cancellationToken);

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

        entity.EmployeeId = request.Data.EmployeeId;
        entity.FromGrade = request.Data.FromGrade;
        entity.ToGrade = request.Data.ToGrade;
        entity.EffectiveDate = request.Data.EffectiveDate;
        entity.PromotionNote = request.Data.PromotionNote;
        entity.Status = request.Data.Status;

        await _context.SaveChangesAsync(cancellationToken);

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