initial commit

Features/Setting/Tax/Cqrs/UpdateTaxHandler.cs

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+using Indotalent.ConfigBackEnd.Exceptions;
+using Indotalent.Infrastructure.Database;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Features.Setting.Tax.Cqrs;
+
+public class UpdateTaxRequest
+{
+    public string? Id { get; set; }
+    public string? Code { get; set; }
+    public string? Name { get; set; }
+    public decimal PercentageValue { get; set; }
+    public string? Category { get; set; }
+    public string? Description { get; set; }
+    public DateTimeOffset? CreatedAt { get; set; }
+    public string? CreatedBy { get; set; }
+    public DateTimeOffset? UpdatedAt { get; set; }
+    public string? UpdatedBy { get; set; }
+}
+
+public class UpdateTaxResponse
+{
+    public string? Id { get; set; }
+    public bool Success { get; set; }
+}
+
+public record UpdateTaxCommand(UpdateTaxRequest Data) : IRequest<UpdateTaxResponse>;
+
+public class UpdateTaxHandler : IRequestHandler<UpdateTaxCommand, UpdateTaxResponse>
+{
+    private readonly AppDbContext _context;
+
+    public UpdateTaxHandler(AppDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<UpdateTaxResponse> Handle(UpdateTaxCommand request, CancellationToken cancellationToken)
+    {
+        var isExists = await _context.Tax
+            .AnyAsync(x => x.Code == request.Data.Code && x.Id != request.Data.Id, cancellationToken);
+
+        if (isExists)
+        {
+            throw new AlreadyExistsException("Tax", request.Data.Code ?? string.Empty);
+        }
+
+        var entity = await _context.Tax
+            .FirstOrDefaultAsync(x => x.Id == request.Data.Id, cancellationToken);
+
+        if (entity == null)
+        {
+            return new UpdateTaxResponse { Id = request.Data.Id, Success = false };
+        }
+
+        entity.Code = request.Data.Code;
+        entity.Name = request.Data.Name;
+        entity.PercentageValue = request.Data.PercentageValue;
+        entity.Category = request.Data.Category;
+        entity.Description = request.Data.Description;
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new UpdateTaxResponse
+        {
+            Id = entity.Id,
+            Success = true
+        };
+    }
+}