Переписаны модули, тесты, обработка ошибок

src/Modules/Catalog/Application/Commands/CreateOfferCommand.cs

@@ -1,6 +1,5 @@
 using System.Text.Json;
 using MediatR;
-using MediatR;
 using Nashel.BuildingBlocks.Application.Abstractions;
 using Nashel.BuildingBlocks.Domain;
 using Nashel.Modules.Catalog.Domain.Aggregates;

src/Modules/Catalog/Application/Commands/UploadOfferImageCommand.cs

@@ -1,33 +1,47 @@
 using MediatR;
+using Microsoft.Extensions.Options;
 using Nashel.BuildingBlocks.Application.Abstractions;
+using Nashel.BuildingBlocks.Application.Configurations;
+using Nashel.BuildingBlocks.Application.Exceptions;
 
 namespace Nashel.Modules.Catalog.Application.Commands;
 
+/// <summary>
+/// Команда загрузки изображения услуги.
+/// </summary>
 public record UploadOfferImageCommand(byte[] Content, string FileName) : IRequest<string>;
 
 public class UploadOfferImageCommandHandler : IRequestHandler<UploadOfferImageCommand, string>
 {
-    private const long MaxFileSize = 5 * 1024 * 1024; // 5MB
-    private static readonly string[] AllowedExtensions = { ".jpg", ".jpeg", ".png", ".webp" };
-
     private readonly ICurrentUserService _currentUserService;
+    private readonly MediaSettings _settings;
 
-    public UploadOfferImageCommandHandler(ICurrentUserService currentUserService)
+    public UploadOfferImageCommandHandler(
+        ICurrentUserService currentUserService,
+        IOptions<MediaSettings> settings)
     {
         _currentUserService = currentUserService;
+        _settings = settings.Value;
     }
 
     public Task<string> Handle(UploadOfferImageCommand request, CancellationToken cancellationToken)
     {
         var userId = _currentUserService.UserId;
-        if (userId == null) throw new UnauthorizedAccessException();
+        if (userId == null)
+        {
+            throw new UnauthorizedAccessException();
+        }
 
-        if (request.Content.Length > MaxFileSize)
-            throw new InvalidOperationException("Размер файла не должен превышать 5 МБ");
+        if (request.Content.Length > _settings.MaxFileSizeInBytes)
+        {
+            throw new BusinessRuleException($"Размер файла слишком велик. Максимум: {_settings.MaxFileSizeInBytes / 1024 / 1024} МБ.");
+        }
 
         var extension = Path.GetExtension(request.FileName).ToLowerInvariant();
-        if (Array.IndexOf(AllowedExtensions, extension) == -1)
-            throw new InvalidOperationException("Допустимые форматы: JPG, PNG, WEBP");
+        if (!_settings.AllowedExtensions.Contains(extension))
+        {
+            throw new BusinessRuleException($"Допустимые форматы: {string.Join(", ", _settings.AllowedExtensions)}.");
+        }
 
         var base64String = Convert.ToBase64String(request.Content);