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

namespace Indotalent.Features.Performance.Transfer.Cqrs;

public class GetTransferByIdResponse : UpdateTransferRequest { }

public record GetTransferByIdQuery(string Id) : IRequest<GetTransferByIdResponse?>;

public class GetTransferByIdHandler : IRequestHandler<GetTransferByIdQuery, GetTransferByIdResponse?>
{
    private readonly AppDbContext _context;

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

    public async Task<GetTransferByIdResponse?> Handle(GetTransferByIdQuery request, CancellationToken cancellationToken)
    {
        return await _context.Transfer
            .AsNoTracking()
            .Include(x => x.Employee)
            .Where(x => x.Id == request.Id)
            .Select(x => new GetTransferByIdResponse
            {
                Id = x.Id,
                AutoNumber = x.AutoNumber,
                EmployeeId = x.EmployeeId,
                EmployeeName = x.Employee != null ? $"{x.Employee.FirstName} {x.Employee.LastName}" : string.Empty,
                FromBranchId = x.FromBranchId,
                FromDepartmentId = x.FromDepartmentId,
                FromDesignationId = x.FromDesignationId,
                ToBranchId = x.ToBranchId,
                ToDepartmentId = x.ToDepartmentId,
                ToDesignationId = x.ToDesignationId,
                TransferDate = x.TransferDate,
                TransferNote = x.TransferNote,
                Status = x.Status,
                CreatedAt = x.CreatedAt,
                CreatedBy = x.CreatedBy,
                UpdatedAt = x.UpdatedAt,
                UpdatedBy = x.UpdatedBy
            })
            .FirstOrDefaultAsync(cancellationToken);
    }
}