blazor-hrm/Features/Organization/Employee/Cqrs/GetEmployeeDeductionByIdHandler.cs

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

namespace Indotalent.Features.Organization.Employee.Cqrs;

public class GetEmployeeDeductionByIdResponse
{
    public string? Id { get; set; }
    public string? DeductionId { get; set; }
    public string? DeductionName { get; set; }
    public decimal Amount { get; set; }
    public string? Description { get; set; }
    public bool IsActive { get; set; }
}

public record GetEmployeeDeductionByIdQuery(string Id) : IRequest<GetEmployeeDeductionByIdResponse>;

public class GetEmployeeDeductionByIdHandler : IRequestHandler<GetEmployeeDeductionByIdQuery, GetEmployeeDeductionByIdResponse>
{
    private readonly AppDbContext _context;
    public GetEmployeeDeductionByIdHandler(AppDbContext context) => _context = context;

    public async Task<GetEmployeeDeductionByIdResponse> Handle(GetEmployeeDeductionByIdQuery request, CancellationToken cancellationToken)
    {
        var data = await _context.EmployeeDeduction
            .Where(x => x.Id == request.Id)
            .Select(x => new GetEmployeeDeductionByIdResponse
            {
                Id = x.Id,
                DeductionId = x.DeductionId,
                DeductionName = x.Deduction != null ? x.Deduction.Name : string.Empty,
                Amount = x.Amount,
                Description = x.Description,
                IsActive = x.IsActive
            })
            .FirstOrDefaultAsync(cancellationToken);

        return data!;
    }
}