initial commit

Features/Organization/Employee/Cqrs/CreateEmployeeIncomeHandler.cs

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+using Indotalent.ConfigBackEnd.Exceptions;
+using Indotalent.ConfigBackEnd.Extensions;
+using Indotalent.Infrastructure.Database;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Features.Organization.Employee.Cqrs;
+
+public class CreateEmployeeIncomeRequest
+{
+    public string? EmployeeId { get; set; }
+    public string? IncomeId { get; set; }
+    public decimal Amount { get; set; }
+    public string? Description { get; set; }
+    public bool IsActive { get; set; } = true;
+}
+
+public class CreateEmployeeIncomeResponse
+{
+    public string? Id { get; set; }
+}
+
+public record CreateEmployeeIncomeCommand(CreateEmployeeIncomeRequest Data) : IRequest<CreateEmployeeIncomeResponse>;
+
+public class CreateEmployeeIncomeHandler : IRequestHandler<CreateEmployeeIncomeCommand, CreateEmployeeIncomeResponse>
+{
+    private readonly AppDbContext _context;
+    public CreateEmployeeIncomeHandler(AppDbContext context) => _context = context;
+
+    public async Task<CreateEmployeeIncomeResponse> Handle(CreateEmployeeIncomeCommand request, CancellationToken cancellationToken)
+    {
+        var entityName = nameof(Data.Entities.EmployeeIncome);
+        var autoNo = await _context.GenerateAutoNumberAsync(
+            entityName: entityName,
+            prefixTemplate: $"EINC/{{Year}}/",
+            ct: cancellationToken
+        );
+
+        var entity = new Data.Entities.EmployeeIncome
+        {
+            AutoNumber = autoNo,
+            EmployeeId = request.Data.EmployeeId,
+            IncomeId = request.Data.IncomeId,
+            Amount = request.Data.Amount,
+            Description = request.Data.Description,
+            IsActive = request.Data.IsActive
+        };
+
+        _context.EmployeeIncome.Add(entity);
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new CreateEmployeeIncomeResponse { Id = entity.Id };
+    }
+}