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

namespace Indotalent.Features.Leave.LeaveBalance.Cqrs;

public class UpdateLeaveBalanceRequest : CreateLeaveBalanceRequest
{
    public string? Id { get; set; }
    public string? EmployeeName { get; set; }
    public string? LeaveCategoryName { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

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

public record UpdateLeaveBalanceCommand(UpdateLeaveBalanceRequest Data) : IRequest<UpdateLeaveBalanceResponse>;

public class UpdateLeaveBalanceHandler : IRequestHandler<UpdateLeaveBalanceCommand, UpdateLeaveBalanceResponse>
{
    private readonly AppDbContext _context;

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

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

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

        entity.EmployeeId = request.Data.EmployeeId;
        entity.LeaveCategoryId = request.Data.LeaveCategoryId;
        entity.Entitlement = request.Data.Entitlement;
        entity.Used = request.Data.Used;
        entity.Pending = request.Data.Pending;
        entity.Remaining = request.Data.Remaining;
        entity.Year = request.Data.Year;
        entity.ValidFrom = request.Data.ValidFrom;
        entity.ValidTo = request.Data.ValidTo;
        entity.CarryForward = request.Data.CarryForward;

        await _context.SaveChangesAsync(cancellationToken);

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