Fix chat visibility and conversation sync

tests/chat-service-direct-room-repair.test.ts

@@ -0,0 +1,67 @@
+import { describe, expect, it, vi } from 'vitest';
+import os from 'os';
+import path from 'path';
+import type { RedditUsersRepository } from '../src/database/repositories.js';
+import { ChatCache } from '../src/services/chat/cache.js';
+import { ChatService } from '../src/services/chat/service.js';
+import { MatrixClient } from '../src/services/chat/matrix/client.js';
+import { createMockLogger } from './mockLogger.js';
+import { authenticatedAccountAuth } from './testUtils.js';
+
+const creds = {
+  homeserver: 'https://matrix.example.test',
+  accessToken: 'tok',
+  userId: '@t2_me:reddit.com',
+  capturedAt: Date.now(),
+};
+
+describe('ChatService direct-room repair', () => {
+  it('repairs cached outbound rooms during delta sync', async () => {
+    const logger = createMockLogger();
+    const matrix = new MatrixClient(creds, logger, {
+      minRequestIntervalMs: 0,
+      fetchImpl: vi.fn(),
+    });
+    matrix.sync = vi.fn().mockResolvedValue({ next_batch: 'next', rooms: { join: {} } });
+    matrix.repairDirectRoomMappings = vi.fn().mockResolvedValue(1);
+
+    const users = {
+      getAll: () => [{ t2Id: 't2_alice', username: 'alice' }],
+      getByUsername: () => ({ t2Id: 't2_alice', username: 'alice' }),
+      upsert: vi.fn(),
+    } as unknown as RedditUsersRepository;
+
+    const cache = new ChatCache(
+      logger,
+      path.join(os.tmpdir(), `chat-direct-repair-${Date.now()}-${Math.random()}.json`),
+    );
+    cache.set([{
+      username: 'alice',
+      roomName: 'alice',
+      lastMessageTime: Date.now(),
+      lastMessageSnippet: 'hello',
+      isFromUs: true,
+      unread: false,
+      url: 'https://chat.reddit.com/room/room',
+      roomId: '!room:reddit.com',
+      messages: [],
+    }]);
+
+    const service = new ChatService(
+      matrix,
+      logger,
+      undefined, undefined, undefined, undefined,
+      cache,
+      undefined,
+      users,
+      authenticatedAccountAuth,
+    );
+
+    await service.refreshTopChats();
+
+    expect(matrix.repairDirectRoomMappings).toHaveBeenCalledWith([{
+      recipientMxid: '@t2_alice:reddit.com',
+      roomId: '!room:reddit.com',
+    }]);
+  });
+});