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

namespace Indotalent.Features.Performance.Transfer.Cqrs;

public class GetTransferListResponse
{
    public string? Id { get; set; }
    public string? AutoNumber { get; set; }
    public string? EmployeeId { get; set; }
    public string? EmployeeName { get; set; }
    public string? FromDept { get; set; }
    public string? FromLocation { get; set; }
    public string? ToDept { get; set; }
    public string? ToLocation { get; set; }
    public DateTime? TransferDate { get; set; }
    public string? Status { get; set; }
}

public record GetTransferListQuery() : IRequest<List<GetTransferListResponse>>;

public class GetTransferListHandler : IRequestHandler<GetTransferListQuery, List<GetTransferListResponse>>
{
    private readonly AppDbContext _context;

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

    public async Task<List<GetTransferListResponse>> Handle(GetTransferListQuery request, CancellationToken cancellationToken)
    {
        return await _context.Transfer
            .AsNoTracking()
            .NotDeletedOnly()
            .Include(x => x.Employee)
            .Include(x => x.FromDepartment)
            .Include(x => x.ToDepartment)
            .Include(x => x.FromBranch)
            .Include(x => x.ToBranch)
            .OrderByDescending(x => x.CreatedAt)
            .Select(x => new GetTransferListResponse
            {
                Id = x.Id,
                AutoNumber = x.AutoNumber,
                EmployeeId = x.EmployeeId,
                EmployeeName = x.Employee != null ? $"{x.Employee.FirstName} {x.Employee.LastName}" : string.Empty,
                FromDept = x.FromDepartment != null ? x.FromDepartment.Name : string.Empty,
                FromLocation = x.FromBranch != null ? x.FromBranch.Name : string.Empty,
                ToDept = x.ToDepartment != null ? x.ToDepartment.Name : string.Empty,
                ToLocation = x.ToBranch != null ? x.ToBranch.Name : string.Empty,
                TransferDate = x.TransferDate,
                Status = x.Status
            })
            .ToListAsync(cancellationToken);
    }
}