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

namespace Indotalent.Features.Organization.Employee.Cqrs;

public class GetEmployeeListResponse
{
    public string Id { get; set; } = string.Empty;
    public string? AutoNumber { get; set; }
    public string Code { get; set; } = string.Empty;
    public string FullName { get; set; } = string.Empty;
    public string DesignationName { get; set; } = string.Empty;
    public string DepartmentName { get; set; } = string.Empty;
    public string BranchName { get; set; } = string.Empty;
    public string EmployeeStatus { get; set; } = string.Empty;
    public string? GradeName { get; set; } 
    public decimal? BasicSalary { get; set; } 
}

public record GetEmployeeListQuery() : IRequest<List<GetEmployeeListResponse>>;

public class GetEmployeeListHandler : IRequestHandler<GetEmployeeListQuery, List<GetEmployeeListResponse>>
{
    private readonly AppDbContext _context;

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

    public async Task<List<GetEmployeeListResponse>> Handle(GetEmployeeListQuery request, CancellationToken cancellationToken)
    {
        var data = await _context.Employee
            .Include(x => x.Grade)         
            .Include(x => x.Branch)
            .Include(x => x.Department)
            .Include(x => x.Designation)
            .AsNoTracking()
            .Select(x => new GetEmployeeListResponse
            {
                Id = x.Id,
                Code = x.Code,
                FullName = $"{x.FirstName} {x.MiddleName} {x.LastName}".Replace("  ", " "),
                DesignationName = x.Designation!.Name,
                DepartmentName = x.Department!.Name,
                BranchName = x.Branch!.Name,
                GradeName = x.Grade != null ? x.Grade.Name : string.Empty,
                BasicSalary = x.BasicSalary
            })
            .ToListAsync(cancellationToken);

        return data;
    }
}