fix(server): handle hanging workspace after user account deleted (#8377)

fix CLOUD-74

packages/backend/server/src/core/doc/adapters/workspace.ts

@@ -132,11 +132,6 @@ export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
   async deleteSpace(workspaceId: string) {
     const ident = { where: { workspaceId } };
     await this.db.$transaction([
-      this.db.workspace.deleteMany({
-        where: {
-          id: workspaceId,
-        },
-      }),
       this.db.snapshot.deleteMany(ident),
       this.db.update.deleteMany(ident),
       this.db.snapshotHistory.deleteMany(ident),
@@ -344,6 +339,17 @@ export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
         return false;
       }
 
+      const historyMaxAge = await this.options
+        .historyMaxAge(snapshot.spaceId)
+        .catch(
+          () =>
+            0 /* edgecase: user deleted but owned workspaces not handled correctly */
+        );
+
+      if (historyMaxAge === 0) {
+        return false;
+      }
+
       await this.db.snapshotHistory
         .create({
           select: {
@@ -355,9 +361,7 @@ export class PgWorkspaceDocStorageAdapter extends DocStorageAdapter {
             timestamp: new Date(snapshot.timestamp),
             blob: Buffer.from(snapshot.bin),
             createdBy: snapshot.editor,
-            expiredAt: new Date(
-              Date.now() + (await this.options.historyMaxAge(snapshot.spaceId))
-            ),
+            expiredAt: new Date(Date.now() + historyMaxAge),
           },
         })
         .catch(() => {

packages/backend/server/src/core/doc/job.ts

@@ -2,7 +2,13 @@ import { Injectable, Logger, OnModuleInit, Optional } from '@nestjs/common';
 import { Cron, CronExpression, SchedulerRegistry } from '@nestjs/schedule';
 import { PrismaClient } from '@prisma/client';
 
-import { CallTimer, Config, metrics } from '../../fundamentals';
+import {
+  CallTimer,
+  Config,
+  type EventPayload,
+  metrics,
+  OnEvent,
+} from '../../fundamentals';
 import { PgWorkspaceDocStorageAdapter } from './adapters/workspace';
 
 @Injectable()
@@ -73,4 +79,11 @@ export class DocStorageCronJob implements OnModuleInit {
       .gauge('updates_queue_count')
       .record(await this.db.update.count());
   }
+
+  @OnEvent('user.deleted')
+  async clearUserWorkspaces(payload: EventPayload<'user.deleted'>) {
+    for (const workspace of payload.ownedWorkspaces) {
+      await this.workspace.deleteSpace(workspace);
+    }
+  }
 }