feat: label AI-generated conversation messages

tests/web/conversations-route.test.ts

@@ -3,6 +3,7 @@ import type { AddressInfo } from 'node:net';
 import { afterEach, describe, expect, it, vi } from 'vitest';
 import type { WebContext } from '../../src/web/context.js';
 import { createConversationsRouter } from '../../src/web/routes/conversations.js';
+import { buildConversationState, conversationMessageFingerprint } from '../../src/services/conversation-state.js';
 
 const servers: Array<ReturnType<express.Express['listen']>> = [];
 
@@ -234,13 +235,14 @@ describe('conversations route', () => {
       lastMessageSnippet: 'Hello',
       isFromUs: false,
       unread: false,
-      messages: [{
-        sender: 'alice',
-        text: 'Hello',
-        timestamp: 1_786_000_000_000,
-        isSelf: false,
-      }],
+      messages: [
+        { sender: 'me', text: 'Automated hello', timestamp: 1_785_999_900_000, isSelf: true },
+        { sender: 'alice', text: 'Hello', timestamp: 1_786_000_000_000, isSelf: false },
+      ],
     };
+    const savedState = buildConversationState(conversation.messages);
+    savedState.automation.turnsUsed = 1;
+    savedState.automation.aiMessageFingerprints = [conversationMessageFingerprint('Automated hello')];
     const refreshTopChats = vi.fn();
     const loadConversationDetails = vi.fn();
     const context = {
@@ -249,6 +251,7 @@ describe('conversations route', () => {
         messages: { getLatestByRecipient: vi.fn().mockReturnValue(undefined) },
       },
       services: {
+        conversationState: { get: vi.fn().mockReturnValue(savedState), save: vi.fn() },
         chat: {
           getSyncStatus: vi.fn().mockReturnValue({
             syncing: false,
@@ -270,11 +273,13 @@ describe('conversations route', () => {
     const body = await response.json();
     expect(body.username).toBe('alice');
     expect(body.automation).toEqual({
-      turnsUsed: 0,
-      remainingTurns: 3,
+      turnsUsed: 1,
+      remainingTurns: 2,
       status: 'active',
       handoffReason: null,
     });
+    expect(body.messages[0]).toMatchObject({ text: 'Automated hello', isAi: true });
+    expect(body.messages[1].isAi).toBeUndefined();
     expect(refreshTopChats).not.toHaveBeenCalled();
     expect(loadConversationDetails).not.toHaveBeenCalled();
   });
@@ -310,10 +315,12 @@ describe('conversations route', () => {
     const response = await request(app, '/api/conversations/room-alice');
 
     expect(response.status).toBe(200);
-    expect((await response.json()).triggeringPost).toEqual({
+    const body = await response.json();
+    expect(body.triggeringPost).toEqual({
       id: 'post-exact', subreddit: 'example', title: 'Exact source post',
       url: roomOrigin.postUrl, imageUrl: roomOrigin.postImageUrl, sentAt: 9,
     });
+    expect(body.messages[0]).toMatchObject({ text: 'Hello', isAi: true });
     expect(context.repos.messages.getLatestByRecipient).not.toHaveBeenCalled();
   });