feat: replace Code conversation archive with deletion

tests/unit/agent-session-sync.test.ts

@@ -1,7 +1,8 @@
-import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import type { RawMessage } from '@/types/chat';
 import {
   buildAgentSessionData,
+  forgetCodingConversationSessionSync,
   flushPendingAgentSessionSync,
   queueCodingConversationSessionSync,
   queueAgentSessionSync,
@@ -10,6 +11,23 @@ import {
 } from '@/lib/agent-session-sync';
 import { createProductSnapshot } from '../fixtures/coding-conversation-product-fixtures';
 
+const PENDING_STORAGE_KEY = 'niancode-agent-session-sync-pending';
+
+function completedSnapshot(conversationId: string) {
+  const snapshot = createProductSnapshot(conversationId);
+  snapshot.nodes = [
+    {
+      kind: 'message', id: 'user-1', role: 'user', status: 'complete',
+      blocks: [{ kind: 'text', id: 'question', text: '解释一下。', status: 'complete' }],
+    },
+    {
+      kind: 'message', id: 'assistant-1', role: 'assistant', status: 'complete',
+      blocks: [{ kind: 'text', id: 'answer', text: '这是回答。', status: 'complete' }],
+    },
+  ];
+  return snapshot;
+}
+
 const getAuthStateMock = vi.hoisted(() => vi.fn());
 const getProfileStateMock = vi.hoisted(() => vi.fn());
 const pushSessionDataMock = vi.hoisted(() => vi.fn());
@@ -46,6 +64,11 @@ describe('local Agent session sync', () => {
     pushSessionDataMock.mockResolvedValue(undefined);
   });
 
+  afterEach(() => {
+    resetAgentSessionSyncForTests();
+    vi.useRealTimers();
+  });
+
   it('removes code, paths, logs, tool parts, attachments and errors from session snapshots', () => {
     const messages: RawMessage[] = [
       {
@@ -274,4 +297,103 @@ describe('local Agent session sync', () => {
     expect(pushSessionDataMock).not.toHaveBeenCalled();
     expect(window.localStorage.getItem('niancode-agent-session-sync-pending')).toContain('user-a');
   });
+
+  it('forgets persisted copies of the deleted local conversation across accounts only', async () => {
+    const data = buildAgentSessionData('project-a', 'deleted-conversation', [
+      { id: 'user-1', role: 'user', content: '问题' },
+      { id: 'assistant-1', role: 'assistant', content: '回答' },
+    ])!;
+    window.localStorage.setItem(PENDING_STORAGE_KEY, JSON.stringify([
+      { userId: 'user-a', data, retryCount: 2 },
+      { userId: 'user-b', data, retryCount: 1 },
+      { userId: 'user-b', data: { ...data, session_id: 'kept-conversation' }, retryCount: 1 },
+    ]));
+
+    forgetCodingConversationSessionSync('deleted-conversation');
+
+    expect(JSON.parse(window.localStorage.getItem(PENDING_STORAGE_KEY) ?? '[]')).toEqual([
+      { userId: 'user-b', data: { ...data, session_id: 'kept-conversation' }, retryCount: 1 },
+    ]);
+    getAuthStateMock.mockReturnValue({
+      getValidAccessToken: vi.fn().mockResolvedValue('account-b-token'),
+      user: { userId: 'user-b' },
+    });
+    getProfileStateMock.mockReturnValue({
+      profilesByUserId: { 'user-b': { displayName: '另一个用户' } },
+      pushSessionData: pushSessionDataMock,
+    });
+    queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+    await flushPendingAgentSessionSync();
+
+    expect(pushSessionDataMock).toHaveBeenCalledTimes(1);
+    expect(pushSessionDataMock).toHaveBeenCalledWith(
+      'user-b', 'account-b-token', expect.objectContaining({ session_id: 'kept-conversation' }),
+    );
+  });
+
+  it('clears a deleted conversation debounce while another conversation still uploads', async () => {
+    vi.useFakeTimers();
+    queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+    queueCodingConversationSessionSync(completedSnapshot('kept-conversation'));
+
+    forgetCodingConversationSessionSync('deleted-conversation');
+
+    expect(vi.getTimerCount()).toBe(1);
+    expect(window.localStorage.getItem(PENDING_STORAGE_KEY)).not.toContain('deleted-conversation');
+    await vi.advanceTimersByTimeAsync(1_000);
+    expect(pushSessionDataMock).toHaveBeenCalledTimes(1);
+    expect(pushSessionDataMock).toHaveBeenCalledWith(
+      'user-a', 'access-token', expect.objectContaining({ session_id: 'kept-conversation' }),
+    );
+  });
+
+  it('does not send a deleted conversation after its access-token wait completes', async () => {
+    vi.useFakeTimers();
+    let resolveToken!: (token: string) => void;
+    getAuthStateMock.mockReturnValue({
+      getValidAccessToken: vi.fn().mockImplementation(() => new Promise<string>((resolve) => {
+        resolveToken = resolve;
+      })),
+      user: { userId: 'user-a' },
+    });
+    queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+    const flushing = flushPendingAgentSessionSync();
+
+    forgetCodingConversationSessionSync('deleted-conversation');
+    queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+    resolveToken('access-token');
+    await flushing;
+    await vi.advanceTimersByTimeAsync(300_000);
+
+    expect(pushSessionDataMock).not.toHaveBeenCalled();
+    expect(window.localStorage.getItem(PENDING_STORAGE_KEY)).toBe('[]');
+    expect(vi.getTimerCount()).toBe(0);
+  });
+
+  it.each(['success', 'failure'] as const)(
+    'does not revive a deleted conversation after in-flight upload %s',
+    async (outcome) => {
+      vi.useFakeTimers();
+      let finishUpload!: () => void;
+      pushSessionDataMock.mockImplementationOnce(() => new Promise<void>((resolve, reject) => {
+        finishUpload = () => outcome === 'success' ? resolve() : reject(new Error('offline'));
+      }));
+      queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+      const flushing = flushPendingAgentSessionSync();
+      await Promise.resolve();
+      expect(pushSessionDataMock).toHaveBeenCalledTimes(1);
+      queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+
+      forgetCodingConversationSessionSync('deleted-conversation');
+      finishUpload();
+      await flushing;
+      queueCodingConversationSessionSync(completedSnapshot('deleted-conversation'));
+      await vi.advanceTimersByTimeAsync(300_000);
+      await flushPendingAgentSessionSync();
+
+      expect(pushSessionDataMock).toHaveBeenCalledTimes(1);
+      expect(window.localStorage.getItem(PENDING_STORAGE_KEY)).toBe('[]');
+      expect(vi.getTimerCount()).toBe(0);
+    },
+  );
 });