feat(ee): ai chat (#2098)

* feat: ai chat

* feat: ai chat

* sync

* cleanup

* view space button

apps/server/src/core/attachment/attachment.constants.ts

@@ -3,6 +3,7 @@ export enum AttachmentType {
   WorkspaceIcon = 'workspace-icon',
   SpaceIcon = 'space-icon',
   File = 'file',
+  Chat = 'chat',
 }
 
 export const validImageExtensions = ['.jpg', '.png', '.jpeg'];

apps/server/src/core/attachment/attachment.controller.ts

@@ -178,21 +178,29 @@ export class AttachmentController {
     }
 
     const attachment = await this.attachmentRepo.findById(fileId);
-    if (
-      !attachment ||
-      attachment.workspaceId !== workspace.id ||
-      !attachment.pageId ||
-      !attachment.spaceId
-    ) {
+    if (!attachment || attachment.workspaceId !== workspace.id) {
       throw new NotFoundException();
     }
 
-    const page = await this.pageRepo.findById(attachment.pageId);
-    if (!page) {
-      throw new NotFoundException();
-    }
+    if (attachment.aiChatId) {
+      // Chat-owned attachment: only the user who uploaded (and therefore
+      // owns the chat, per AttachmentRepo.claimAttachmentsForChat) can
+      // read it back.
+      if (attachment.creatorId !== user.id) {
+        throw new NotFoundException();
+      }
+    } else {
+      if (!attachment.pageId || !attachment.spaceId) {
+        throw new NotFoundException();
+      }
 
-    await this.pageAccessService.validateCanView(page, user);
+      const page = await this.pageRepo.findById(attachment.pageId);
+      if (!page) {
+        throw new NotFoundException();
+      }
+
+      await this.pageAccessService.validateCanView(page, user);
+    }
 
     try {
       return await this.sendFileResponse(req, res, attachment, 'private');

apps/server/src/core/attachment/attachment.utils.ts

@@ -71,6 +71,8 @@ export function getAttachmentFolderPath(
       return `${workspaceId}/space-logos`;
     case AttachmentType.File:
       return `${workspaceId}/files`;
+    case AttachmentType.Chat:
+      return `${workspaceId}/chat-files`;
     default:
       return `${workspaceId}/files`;
   }

apps/server/src/core/attachment/processors/attachment.processor.ts

@@ -28,6 +28,11 @@ export class AttachmentProcessor extends WorkerHost implements OnModuleDestroy {
           job.data.pageId,
         );
       }
+      if (job.name === QueueJob.DELETE_AI_CHAT_ATTACHMENTS) {
+        await this.attachmentService.handleDeleteAiChatAttachments(
+          job.data.aiChatId,
+        );
+      }
       if (
         job.name === QueueJob.ATTACHMENT_INDEX_CONTENT ||
         job.name === QueueJob.ATTACHMENT_INDEXING

apps/server/src/core/attachment/services/attachment.service.ts

@@ -289,6 +289,31 @@ export class AttachmentService {
     );
   }
 
+  async handleDeleteAiChatAttachments(aiChatId: string) {
+    try {
+      const attachments = await this.attachmentRepo.findByAiChatId(aiChatId);
+      if (!attachments || attachments.length === 0) {
+        return;
+      }
+
+      await Promise.all(
+        attachments.map(async (attachment) => {
+          try {
+            await this.storageService.delete(attachment.filePath);
+            await this.attachmentRepo.deleteAttachmentById(attachment.id);
+          } catch (err) {
+            this.logger.log(
+              `DeleteAiChatAttachments: failed to delete attachment ${attachment.id}:`,
+              err,
+            );
+          }
+        }),
+      );
+    } catch (err) {
+      throw err;
+    }
+  }
+
   async handleDeleteSpaceAttachments(spaceId: string) {
     try {
       const attachments = await this.attachmentRepo.findBySpaceId(spaceId);