import { beforeEach, describe, expect, it, vi } from 'vitest';
import type { RawMessage } from '@/types/chat';
import {
  buildAgentSessionData,
  flushPendingAgentSessionSync,
  queueAgentSessionSync,
  resetAgentSessionSyncForTests,
  sanitizeAgentSessionText,
} from '@/lib/agent-session-sync';

const getAuthStateMock = vi.hoisted(() => vi.fn());
const getProfileStateMock = vi.hoisted(() => vi.fn());
const pushSessionDataMock = vi.hoisted(() => vi.fn());

vi.mock('@/stores/auth', () => ({
  useAuthStore: {
    getState: () => getAuthStateMock(),
  },
}));

vi.mock('@/stores/user-profile', () => ({
  getProfileAccountKey: (value: string | null | undefined) => value?.trim() || null,
  isUserProfileComplete: (profile: { displayName?: string } | undefined) => Boolean(profile?.displayName?.trim()),
  useUserProfileStore: {
    getState: () => getProfileStateMock(),
  },
}));

describe('local Agent session sync', () => {
  beforeEach(() => {
    resetAgentSessionSyncForTests();
    window.localStorage.clear();
    getAuthStateMock.mockReset();
    getProfileStateMock.mockReset();
    pushSessionDataMock.mockReset();
    getAuthStateMock.mockReturnValue({
      getValidAccessToken: vi.fn().mockResolvedValue('access-token'),
      user: { userId: 'user-a' },
    });
    getProfileStateMock.mockReturnValue({
      profilesByUserId: { 'user-a': { displayName: '小泥' } },
      pushSessionData: pushSessionDataMock,
    });
    pushSessionDataMock.mockResolvedValue(undefined);
  });

  it('removes code, paths, logs, tool parts, attachments and errors from session snapshots', () => {
    const messages: RawMessage[] = [
      {
        id: 'user-1',
        role: 'user',
        content: '请解释这个问题。\n```ts\nconst secret = 1;\n```\n文件在 /Users/demo/project/src/main.ts',
        _attachedFiles: [{
          fileName: 'screen.png',
          mimeType: 'image/png',
          fileSize: 10,
          preview: 'data:image/png;base64,AAAA',
        }],
      },
      {
        id: 'assistant-1',
        role: 'assistant',
        content: [
          { type: 'thinking', thinking: '内部推理不应上传。' },
          { type: 'text', text: '这是回答。' },
          { type: 'tool_use', name: 'read_file', input: { path: '/Users/demo/project/src/main.ts' } },
          { type: 'tool_result', content: 'DEBUG: tool output' },
          { type: 'text', text: '```js\nconsole.log(1)\n```' },
        ],
      },
      {
        id: 'error-1',
        role: 'assistant',
        content: '错误响应不上传。',
        isError: true,
      },
      {
        id: 'system-1',
        role: 'system',
        content: '系统提示不上传。',
      },
    ];

    expect(buildAgentSessionData(
      'prj_1',
      'ses_1',
      messages,
      '2026-08-13T10:00:00.000Z',
    )).toEqual({
      project_id: 'prj_1',
      session_id: 'ses_1',
      updated_at: '2026-08-13T10:00:00.000Z',
      messages: [
        { id: 'user-1', role: 'user', text: '请解释这个问题。\n\n文件在' },
        { id: 'assistant-1', role: 'assistant', text: '这是回答。' },
      ],
    });
  });

  it('normalizes standalone text by removing inline code and artifact paths', () => {
    expect(sanitizeAgentSessionText(
      '回答见 `src/main.ts`，产物在 MEDIA:/tmp/out.png。\n[2026-08-13T10:00:00Z] INFO: done',
    )).toBe('回答见 ，产物在 。');
  });

  it('removes unfenced source lines while keeping surrounding prose', () => {
    expect(sanitizeAgentSessionText(
      '先说明原因。\nconst result = buildResult();\n然后给出结论。',
    )).toBe('先说明原因。\n然后给出结论。');
  });

  it('uploads the latest snapshot for a completed session and persists failures', async () => {
    const messages: RawMessage[] = [
      { id: 'user-1', role: 'user', content: '第一个问题' },
      { id: 'assistant-1', role: 'assistant', content: '第一个回答' },
    ];

    queueAgentSessionSync('prj_1', 'ses_1', messages);
    await flushPendingAgentSessionSync();

    expect(pushSessionDataMock).toHaveBeenCalledWith(
      'user-a',
      'access-token',
      expect.objectContaining({
        project_id: 'prj_1',
        session_id: 'ses_1',
        messages: [
          { id: 'user-1', role: 'user', text: '第一个问题' },
          { id: 'assistant-1', role: 'assistant', text: '第一个回答' },
        ],
      }),
    );

    pushSessionDataMock.mockRejectedValueOnce(new Error('offline'));
    queueAgentSessionSync('prj_1', 'ses_1', [
      ...messages,
      { id: 'user-2', role: 'user', content: '第二个问题' },
      { id: 'assistant-2', role: 'assistant', content: '第二个回答' },
    ]);
    await flushPendingAgentSessionSync();

    const stored = JSON.parse(window.localStorage.getItem('niancode-agent-session-sync-pending') ?? '[]') as Array<{ data?: { session_id?: string } }>;
    expect(stored).toEqual(expect.arrayContaining([
      expect.objectContaining({ data: expect.objectContaining({ session_id: 'ses_1' }) }),
    ]));
  });

  it('never uploads a pending snapshot under a different authenticated account', async () => {
    queueAgentSessionSync('prj_1', 'ses_1', [
      { id: 'user-1', role: 'user', content: '账号 A 的问题' },
      { id: 'assistant-1', role: 'assistant', content: '账号 A 的回答' },
    ]);
    getAuthStateMock.mockReturnValue({
      getValidAccessToken: vi.fn().mockResolvedValue('account-b-token'),
      user: { userId: 'user-b' },
    });

    await flushPendingAgentSessionSync();

    expect(pushSessionDataMock).not.toHaveBeenCalled();
    expect(window.localStorage.getItem('niancode-agent-session-sync-pending')).toContain('user-a');
  });
});