[FA-misc] Initial MassTransit implementation seems to work

FictionArchive.Service.NovelService/Services/EventHandlers/ChapterPullRequestedEventHandler.cs

@@ -1,19 +0,0 @@
-using FictionArchive.Service.NovelService.Models.IntegrationEvents;
-using FictionArchive.Service.Shared.Services.EventBus;
-
-namespace FictionArchive.Service.NovelService.Services.EventHandlers;
-
-public class ChapterPullRequestedEventHandler : IIntegrationEventHandler<ChapterPullRequestedEvent>
-{
-    private readonly NovelUpdateService _novelUpdateService;
-
-    public ChapterPullRequestedEventHandler(NovelUpdateService novelUpdateService)
-    {
-        _novelUpdateService = novelUpdateService;
-    }
-
-    public async Task Handle(ChapterPullRequestedEvent @event)
-    {
-        await _novelUpdateService.PullChapterContents(@event.NovelId, @event.VolumeId, @event.ChapterOrder);
-    }
-}

FictionArchive.Service.NovelService/Services/EventHandlers/FileUploadRequestStatusUpdateEventHandler.cs

@@ -1,39 +0,0 @@
-using FictionArchive.Common.Enums;
-using FictionArchive.Service.NovelService.Models.IntegrationEvents;
-using FictionArchive.Service.Shared.Services.EventBus;
-
-namespace FictionArchive.Service.NovelService.Services.EventHandlers;
-
-public class FileUploadRequestStatusUpdateEventHandler : IIntegrationEventHandler<FileUploadRequestStatusUpdateEvent>
-{
-    private readonly ILogger<FileUploadRequestStatusUpdateEventHandler> _logger;
-    private readonly NovelServiceDbContext _context;
-    private readonly NovelUpdateService _novelUpdateService;
-
-    public FileUploadRequestStatusUpdateEventHandler(ILogger<FileUploadRequestStatusUpdateEventHandler> logger, NovelServiceDbContext context, NovelUpdateService novelUpdateService)
-    {
-        _logger = logger;
-        _context = context;
-        _novelUpdateService = novelUpdateService;
-    }
-
-    public async Task Handle(FileUploadRequestStatusUpdateEvent @event)
-    {
-        var image = await _context.Images.FindAsync(@event.RequestId);
-        if (image == null)
-        {
-            // Not a request we care about.
-            return;
-        }
-        if (@event.Status == RequestStatus.Failed)
-        {
-            _logger.LogError("Image upload failed for image with id {imageId}", image.Id);
-            return;
-        }
-        else if (@event.Status == RequestStatus.Success)
-        {
-            _logger.LogInformation("Image upload succeeded for image with id {imageId}", image.Id);
-            await _novelUpdateService.UpdateImage(image.Id, @event.FileAccessUrl);
-        }
-    }
-}

FictionArchive.Service.NovelService/Services/EventHandlers/NovelUpdateRequestedEventHandler.cs

@@ -1,23 +0,0 @@
-using FictionArchive.Service.NovelService.Models.IntegrationEvents;
-using FictionArchive.Service.Shared.Services.EventBus;
-
-namespace FictionArchive.Service.NovelService.Services.EventHandlers;
-
-public class NovelUpdateRequestedEventHandler : IIntegrationEventHandler<NovelUpdateRequestedEvent>
-{
-    private readonly ILogger<NovelUpdateRequestedEventHandler> _logger;
-    private readonly IEventBus _eventBus;
-    private readonly NovelUpdateService _novelUpdateService;
-
-    public NovelUpdateRequestedEventHandler(ILogger<NovelUpdateRequestedEventHandler> logger, IEventBus eventBus, NovelUpdateService novelUpdateService)
-    {
-        _logger = logger;
-        _eventBus = eventBus;
-        _novelUpdateService = novelUpdateService;
-    }
-
-    public async Task Handle(NovelUpdateRequestedEvent @event)
-    {
-        await _novelUpdateService.ImportNovel(@event.NovelUrl);
-    }
-}

FictionArchive.Service.NovelService/Services/EventHandlers/TranslationRequestCompletedEventHandler.cs

@@ -1,39 +0,0 @@
-using FictionArchive.Service.NovelService.Models.IntegrationEvents;
-using FictionArchive.Service.NovelService.Models.Localization;
-using FictionArchive.Service.Shared.Services.EventBus;
-using Microsoft.EntityFrameworkCore;
-
-namespace FictionArchive.Service.NovelService.Services.EventHandlers;
-
-public class TranslationRequestCompletedEventHandler : IIntegrationEventHandler<TranslationRequestCompletedEvent>
-{
-    private readonly ILogger<TranslationRequestCompletedEventHandler> _logger;
-    private readonly NovelServiceDbContext _dbContext;
-
-    public TranslationRequestCompletedEventHandler(ILogger<TranslationRequestCompletedEventHandler> logger, NovelServiceDbContext dbContext)
-    {
-        _logger = logger;
-        _dbContext = dbContext;
-    }
-
-    public async Task Handle(TranslationRequestCompletedEvent @event)
-    {
-        var localizationRequest = await _dbContext.LocalizationRequests.Include(r => r.KeyRequestedForTranslation)
-            .ThenInclude(lk => lk.Texts)
-            .FirstOrDefaultAsync(lk => lk.Id == @event.TranslationRequestId);
-        if (localizationRequest == null)
-        {
-            // Not one of our requests, discard it
-            return;
-        }
-        
-        localizationRequest.KeyRequestedForTranslation.Texts.Add(new LocalizationText()
-        {
-            Language = localizationRequest.TranslateTo,
-            Text = @event.TranslatedText,
-            TranslationEngine = localizationRequest.Engine
-        });
-        _dbContext.LocalizationRequests.Remove(localizationRequest);
-        await _dbContext.SaveChangesAsync();
-    }
-}

FictionArchive.Service.NovelService/Services/NovelUpdateService.cs

@@ -1,15 +1,15 @@
 using FictionArchive.Common.Enums;
-using FictionArchive.Service.FileService.IntegrationEvents;
+using FictionArchive.Service.NovelService.Contracts;
 using FictionArchive.Service.NovelService.Models.Configuration;
 using FictionArchive.Service.NovelService.Models.Enums;
 using FictionArchive.Service.NovelService.Models.Images;
-using FictionArchive.Service.NovelService.Models.IntegrationEvents;
 using FictionArchive.Service.NovelService.Models.Localization;
 using FictionArchive.Service.NovelService.Models.Novels;
 using FictionArchive.Service.NovelService.Models.SourceAdapters;
 using FictionArchive.Service.NovelService.Services.SourceAdapters;
-using FictionArchive.Service.Shared.Services.EventBus;
+using FictionArchive.Service.Shared.Contracts.Events;
 using HtmlAgilityPack;
+using MassTransit;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Options;
 
@@ -20,15 +20,15 @@ public class NovelUpdateService
     private readonly NovelServiceDbContext _dbContext;
     private readonly ILogger<NovelUpdateService> _logger;
     private readonly IEnumerable<ISourceAdapter> _sourceAdapters;
-    private readonly IEventBus _eventBus;
+    private readonly IPublishEndpoint _publishEndpoint;
     private readonly NovelUpdateServiceConfiguration _novelUpdateServiceConfiguration;
 
-    public NovelUpdateService(NovelServiceDbContext dbContext, ILogger<NovelUpdateService> logger, IEnumerable<ISourceAdapter> sourceAdapters, IEventBus eventBus, IOptions<NovelUpdateServiceConfiguration> novelUpdateServiceConfiguration)
+    public NovelUpdateService(NovelServiceDbContext dbContext, ILogger<NovelUpdateService> logger, IEnumerable<ISourceAdapter> sourceAdapters, IPublishEndpoint publishEndpoint, IOptions<NovelUpdateServiceConfiguration> novelUpdateServiceConfiguration)
     {
         _dbContext = dbContext;
         _logger = logger;
         _sourceAdapters = sourceAdapters;
-        _eventBus = eventBus;
+        _publishEndpoint = publishEndpoint;
         _novelUpdateServiceConfiguration = novelUpdateServiceConfiguration.Value;
     }
 
@@ -335,7 +335,8 @@ public class NovelUpdateService
             .ThenInclude(volume => volume.Chapters)
             .ThenInclude(chapter => chapter.Body)
             .ThenInclude(localizationKey => localizationKey.Texts)
-            .Include(n => n.CoverImage)
+            .Include(n => n.CoverImage).Include(novel => novel.Volumes).ThenInclude(volume => volume.Chapters)
+            .ThenInclude(chapter => chapter.Name)
             .FirstOrDefaultAsync(n =>
                 n.ExternalId == metadata.ExternalId &&
                 n.Source.Key == metadata.SourceDescriptor.Key);
@@ -393,14 +394,12 @@ public class NovelUpdateService
         // Publish novel created event for new novels
         if (existingNovel == null)
         {
-            await _eventBus.Publish(new NovelCreatedEvent
-            {
-                NovelId = novel.Id,
-                Title = novel.Name.Texts.First(t => t.Language == novel.RawLanguage).Text,
-                OriginalLanguage = novel.RawLanguage,
-                Source = novel.Source.Key,
-                AuthorName = novel.Author.Name.Texts.First(t => t.Language == novel.RawLanguage).Text
-            });
+            await _publishEndpoint.Publish<INovelCreated>(new NovelCreated(
+                novel.Id,
+                novel.Name.Texts.First(t => t.Language == novel.RawLanguage).Text,
+                novel.RawLanguage,
+                novel.Source.Key,
+                novel.Author.Name.Texts.First(t => t.Language == novel.RawLanguage).Text));
         }
 
         // Publish chapter created events for new chapters
@@ -408,27 +407,23 @@ public class NovelUpdateService
         {
             foreach (var chapter in volume.Chapters.Where(c => !existingChapterIds.Contains(c.Id)))
             {
-                await _eventBus.Publish(new ChapterCreatedEvent
-                {
-                    ChapterId = chapter.Id,
-                    NovelId = novel.Id,
-                    VolumeId = volume.Id,
-                    VolumeOrder = volume.Order,
-                    ChapterOrder = chapter.Order,
-                    ChapterTitle = chapter.Name.Texts.First(t => t.Language == novel.RawLanguage).Text
-                });
+                await _publishEndpoint.Publish<IChapterCreated>(new ChapterCreated(
+                    chapter.Id,
+                    novel.Id,
+                    volume.Id,
+                    (uint)volume.Order,
+                    chapter.Order,
+                    chapter.Name.Texts.First(t => t.Language == novel.RawLanguage).Text));
             }
         }
 
         // Publish cover image event if needed
         if (shouldPublishCoverEvent && novel.CoverImage != null && metadata.CoverImage != null)
         {
-            await _eventBus.Publish(new FileUploadRequestCreatedEvent
-            {
-                RequestId = novel.CoverImage.Id,
-                FileData = metadata.CoverImage.Data,
-                FilePath = $"Novels/{novel.Id}/Images/cover.jpg"
-            });
+            await _publishEndpoint.Publish<IFileUploadRequestCreated>(new FileUploadRequestCreated(
+                novel.CoverImage.Id,
+                $"Novels/{novel.Id}/Images/cover.jpg",
+                metadata.CoverImage.Data));
         }
 
         // Publish chapter pull events for chapters without body content
@@ -440,12 +435,10 @@ public class NovelUpdateService
 
             foreach (var chapter in chaptersNeedingPull)
             {
-                await _eventBus.Publish(new ChapterPullRequestedEvent
-                {
-                    NovelId = novel.Id,
-                    VolumeId = volume.Id,
-                    ChapterOrder = chapter.Order
-                });
+                await _publishEndpoint.Publish<IChapterPullRequested>(new ChapterPullRequested(
+                    novel.Id,
+                    volume.Id,
+                    chapter.Order));
             }
         }
 
@@ -518,12 +511,10 @@ public class NovelUpdateService
         foreach (var image in chapter.Images)
         {
             var data = rawChapter.ImageData.FirstOrDefault(img => img.Url == image.OriginalPath);
-            await _eventBus.Publish(new FileUploadRequestCreatedEvent()
-            {
-                FileData = data.Data,
-                FilePath = $"{novel.Id}/Images/Chapter-{chapter.Id}/{imgCount++}.jpg",
-                RequestId = image.Id
-            });
+            await _publishEndpoint.Publish<IFileUploadRequestCreated>(new FileUploadRequestCreated(
+                image.Id,
+                $"Novels/{novel.Id}/Images/Chapter-{chapter.Id}/{imgCount++}.jpg",
+                data.Data));
         }
 
         return chapter;
@@ -557,25 +548,17 @@ public class NovelUpdateService
         await _dbContext.SaveChangesAsync();
     }
 
-    public async Task<NovelUpdateRequestedEvent> QueueNovelImport(string novelUrl)
+    public async Task<NovelUpdateRequested> QueueNovelImport(string novelUrl)
     {
-        var importNovelRequestEvent = new NovelUpdateRequestedEvent()
-        {
-            NovelUrl = novelUrl
-        };
-        await _eventBus.Publish(importNovelRequestEvent);
+        var importNovelRequestEvent = new NovelUpdateRequested(novelUrl);
+        await _publishEndpoint.Publish<INovelUpdateRequested>(importNovelRequestEvent);
         return importNovelRequestEvent;
     }
 
-    public async Task<ChapterPullRequestedEvent> QueueChapterPull(uint novelId, uint volumeId, uint chapterOrder)
+    public async Task<ChapterPullRequested> QueueChapterPull(uint novelId, uint volumeId, uint chapterOrder)
     {
-        var chapterPullEvent = new ChapterPullRequestedEvent()
-        {
-            NovelId = novelId,
-            VolumeId = volumeId,
-            ChapterOrder = chapterOrder
-        };
-        await _eventBus.Publish(chapterPullEvent);
+        var chapterPullEvent = new ChapterPullRequested(novelId, volumeId, chapterOrder);
+        await _publishEndpoint.Publish<IChapterPullRequested>(chapterPullEvent);
         return chapterPullEvent;
     }