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

namespace Indotalent.Features.Performance.Appraisal.Cqrs;

public class GetAppraisalByIdResponse
{
    public string? Id { get; set; }
    public string? AutoNumber { get; set; }
    public string? EmployeeId { get; set; }
    public string? EmployeeCode { get; set; }
    public string? EmployeeName { get; set; }
    public string? LastRating { get; set; }
    public decimal CurrentSalary { get; set; }
    public decimal IncrementPercentage { get; set; }
    public decimal NewSalary { get; set; }
    public string? AppraisalType { get; set; }
    public DateTime EffectiveDate { get; set; }
    public string? AppraisalNote { get; set; }
    public string? Status { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

public record GetAppraisalByIdQuery(string Id) : IRequest<GetAppraisalByIdResponse?>;

public class GetAppraisalByIdHandler : IRequestHandler<GetAppraisalByIdQuery, GetAppraisalByIdResponse?>
{
    private readonly AppDbContext _context;

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

    public async Task<GetAppraisalByIdResponse?> Handle(GetAppraisalByIdQuery request, CancellationToken cancellationToken)
    {
        return await _context.Appraisal
            .AsNoTracking()
            .Include(x => x.Employee)
            .Where(x => x.Id == request.Id)
            .Select(x => new GetAppraisalByIdResponse
            {
                Id = x.Id,
                AutoNumber = x.AutoNumber,
                EmployeeId = x.EmployeeId,
                EmployeeCode = x.Employee != null ? x.Employee.Code : string.Empty,
                EmployeeName = x.Employee != null ? $"{x.Employee.FirstName} {x.Employee.LastName}" : string.Empty,
                LastRating = x.LastRating,
                CurrentSalary = x.CurrentSalary,
                IncrementPercentage = x.IncrementPercentage,
                NewSalary = x.NewSalary,
                AppraisalType = x.AppraisalType,
                EffectiveDate = x.EffectiveDate,
                AppraisalNote = x.AppraisalNote,
                Status = x.Status,
                CreatedAt = x.CreatedAt,
                CreatedBy = x.CreatedBy,
                UpdatedAt = x.UpdatedAt,
                UpdatedBy = x.UpdatedBy
            })
            .FirstOrDefaultAsync(cancellationToken);
    }
}