[FA-4] Adds an event bus infrastructure, a RabbitMQ implementation and rewires existing mutations on NovelService to utilize it.

FictionArchive.Service.TranslationService/GraphQL/Mutation.cs

@@ -1,6 +1,8 @@
 using FictionArchive.Common.Enums;
+using FictionArchive.Service.TranslationService.Models;
 using FictionArchive.Service.TranslationService.Models.Database;
 using FictionArchive.Service.TranslationService.Models.Enums;
+using FictionArchive.Service.TranslationService.Services;
 using FictionArchive.Service.TranslationService.Services.Database;
 using FictionArchive.Service.TranslationService.Services.TranslationEngines;
 
@@ -8,23 +10,10 @@ namespace FictionArchive.Service.TranslationService.GraphQL;
 
 public class Mutation
 {
-    public async Task<string> TranslateText(string text, Language from, Language to, string translationEngineKey, IEnumerable<ITranslationEngine> translationEngines, TranslationServiceDbContext dbContext)
+    public async Task<TranslationResult> TranslateText(string text, Language from, Language to, string translationEngineKey, TranslationEngineService translationEngineService)
     {
-        var engine = translationEngines.FirstOrDefault(engine => engine.Descriptor.Key == translationEngineKey);
-        var translation = await engine.GetTranslation(text, from, to);
-
-        dbContext.TranslationRequests.Add(new TranslationRequest()
-        {
-            OriginalText = text,
-            BilledCharacterCount = 0, // FILL ME
-            From = from,
-            To = to,
-            Status = translation != null ? TranslationRequestStatus.Success : TranslationRequestStatus.Failed,
-            TranslatedText = translation,
-            TranslationEngineKey = translationEngineKey
-        });
-        await dbContext.SaveChangesAsync();
+        var result = await translationEngineService.Translate(from, to, text, translationEngineKey);
         
-        return translation;
+        return result;
     }
 }