import { act, fireEvent, render, screen, waitFor } from '@testing-library/react';
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { TeacherChatPanel } from '@/pages/Chat/TeacherChatPanel';
import type { TeacherDefinition, TeacherRequest, TeacherSend, TeacherTopic } from '../../shared/coding-teacher';
const api = vi.hoisted(() => ({
  config: vi.fn(),
  preview: vi.fn(),
  list: vi.fn(),
  create: vi.fn(),
  read: vi.fn(),
  send: vi.fn(),
  updateDiscussion: vi.fn(),
  cancel: vi.fn(),
  save: vi.fn(),
  events: vi.fn(),
}));
vi.mock('@/lib/coding-teacher', () => ({
  teacherApi: api,
  teacherTopicsPath: (p: string, s: string, role?: string) => p + '/' + (role ?? s),
}));
const definition: TeacherDefinition = {
  schema_version: 1,
  teacher_id: 'coding-teacher',
  name: '老师',
  description: '',
  avatar_id: 'avatar-01',
  welcome_message: '欢迎',
  suggested_questions: [],
  system_prompt: '教学',
  skills: [],
  model: { model_id: 'qwen', reasoning_choice: { mode: 'default' } },
  limits: { max_input_tokens: 8000, max_output_tokens: 1500 },
};
function topic(id: string): TeacherTopic {
  return {
    schemaVersion: 1,
    revision: 1,
    id,
    accountId: 'user',
    projectId: 'p',
    sourceConversationId: 'c',
    definition,
    version: 1,
    createdAt: '2026-09-22',
    updatedAt: '2026-09-22',
    requests: [],
  };
}
const first = topic('first'),
  second = topic('second');
function request(overrides: Partial<TeacherRequest> = {}): TeacherRequest {
  return {
    id: 'request-1', text: '老师帮我看看', references: [], createdAt: 'now',
    sourceCursor: { workerGeneration: 1, seq: 1 }, sourceCapturedAt: 'now',
    includedSourceMessageIds: [], omittedMessages: 0, status: 'completed', response: '',
    ...overrides,
  };
}

const suggestedQuestions = ['怎样知道别人看懂了规则？', '我该先试哪个想法？'];
function suggestionsRequest(overrides: Partial<TeacherRequest> = {}): TeacherRequest {
  return request({ intent: 'suggestions', response: '我们可以从最近遇到的这两个地方聊起。', suggestedQuestions, ...overrides });
}
let streams: Map<string, EventTarget & { close: ReturnType<typeof vi.fn> }>;
beforeEach(() => {
  vi.resetAllMocks();
  localStorage.clear();
  streams = new Map();
  api.config.mockResolvedValue({ enabled: true, published_version: 1, revision: 1, definition });
  api.list.mockResolvedValue({
    items: [
      { id: 'first', title: '第一个' },
      { id: 'second', title: '第二个' },
    ],
    lastSelectedTopicId: 'first',
  });
  api.read.mockImplementation(async (_base, id) =>
    id === 'first' ? structuredClone(first) : structuredClone(second)
  );
  api.create.mockResolvedValue(first);
  api.events.mockImplementation(async (_base, id) => {
    const stream = Object.assign(new EventTarget(), { close: vi.fn() });
    streams.set(id, stream);
    return stream;
  });
});
async function ready() {
  await waitFor(() =>
    expect(screen.getByRole('combobox', { name: '老师话题' })).toHaveValue('first')
  );
  await waitFor(() => expect(streams.has('first')).toBe(true));
}
describe('teacher side chat', () => {
  it('retains failed input and retries with the same request id, then appends a reply only on click', async () => {
    const bringBack = vi.fn();
    api.send
      .mockRejectedValueOnce(new Error('网络暂不可用'))
      .mockImplementationOnce(async (_base, _id, input) => ({
        ...first,
        revision: 3,
        requests: [
          {
            id: input.requestId,
            text: input.text,
            references: [],
            createdAt: 'now',
            sourceCursor: { workerGeneration: 1, seq: 1 },
            sourceCapturedAt: 'now',
            includedSourceMessageIds: [],
            omittedMessages: 0,
            status: 'completed',
            response: '教学回答',
          },
        ],
      }));
    render(<TeacherChatPanel projectId="p" sourceId="c" onBringBack={bringBack} />);
    await ready();
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '解释代码' } });
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('网络暂不可用');
    expect(screen.getByLabelText('向老师提问')).toHaveValue('解释代码');
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('教学回答');
    expect(api.send.mock.calls[0][2].requestId).toBe(api.send.mock.calls[1][2].requestId);
    expect(bringBack).not.toHaveBeenCalled();
    fireEvent.click(screen.getByRole('button', { name: '带回主会话草稿' }));
    expect(bringBack).toHaveBeenCalledWith('教学回答');
  });
  it('ignores an old topic stream after switching and does not cancel when closed', async () => {
    const closed = vi.fn();
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" onClose={closed} />);
    await ready();
    const old = streams.get('first')!;
    fireEvent.change(screen.getByRole('combobox', { name: '老师话题' }), {
      target: { value: 'second' },
    });
    await waitFor(() =>
      expect(screen.getByRole('combobox', { name: '老师话题' })).toHaveValue('second')
    );
    act(() =>
      old.dispatchEvent(
        new MessageEvent('snapshot', { data: JSON.stringify({ ...first, revision: 999 }) })
      )
    );
    expect(screen.getByRole('combobox', { name: '老师话题' })).toHaveValue('second');
    fireEvent.click(screen.getByRole('button', { name: '关闭老师' }));
    expect(closed).toHaveBeenCalledOnce();
    view.unmount();
    expect(api.cancel).not.toHaveBeenCalled();
    expect(old.close).toHaveBeenCalled();
  });
  it('shows disabled history while blocking a new question', async () => {
    api.config.mockResolvedValue({ enabled: false, definition });
    render(<TeacherChatPanel projectId="p" sourceId="c" />);
    await ready();
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '问题' } });
    expect(screen.getByRole('button', { name: '提问', exact: true })).toBeDisabled();
    expect(api.read).toHaveBeenCalled();
  });

  it('keeps friend suggestions as drafts until the student submits them', async () => {
    const role = 'friend';
    const label = '朋友';
    const suggestion = '想听听你对作品的第一印象';
    const sendLabel = '发送给朋友';
    api.list.mockResolvedValue({ items: [], lastSelectedTopicId: null });
    api.send.mockImplementation(async (_base, _id, input) => ({ ...first, requests: [{
      id: input.requestId, text: input.text, references: [], createdAt: 'now',
      sourceCursor: { workerGeneration: 1, seq: 1 }, sourceCapturedAt: 'now',
      includedSourceMessageIds: [], omittedMessages: 0, status: 'completed', response: '一起再想一想。',
    }] }));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role={role} />);
    const sendButton = screen.getByRole('button', { name: sendLabel, exact: true });
    await waitFor(() => expect(screen.getByLabelText(`向${label}提问`)).toBeEnabled());
    fireEvent.click(screen.getByRole('button', { name: suggestion }));
    expect(screen.getByLabelText(`向${label}提问`)).toHaveValue(suggestion);
    expect(api.create).not.toHaveBeenCalled();
    expect(api.send).not.toHaveBeenCalled();

    fireEvent.click(sendButton);
    await screen.findByText('一起再想一想。');
    expect(api.config).toHaveBeenCalledWith(role);
    expect(api.send).toHaveBeenCalledWith(`p/${role}`, 'first', expect.objectContaining({
      text: suggestion, sourceConversationId: 'c', references: [],
    }));
    expect(screen.getByLabelText(`向${label}提问`)).toHaveValue('');
    view.unmount();
    render(<TeacherChatPanel projectId="p" sourceId="c" role={role} />);
    expect(screen.getByLabelText(`向${label}提问`)).toHaveValue('');
  });

  it.each(['teacher', 'friend'] as const)('opens %s without an extra project row or a model request', async (role) => {
    api.list.mockResolvedValue({ items: [], lastSelectedTopicId: null });
    api.config.mockResolvedValue({ enabled: true, published_version: 1, revision: 1, definition: { ...definition, suggested_questions: ['固定的通用问题'] } });
    render(<TeacherChatPanel projectId="p" projectName="星星收集游戏" sourceId="c" role={role} />);
    await waitFor(() => expect(screen.getByRole('textbox')).toBeEnabled());
    expect(screen.queryByText('星星收集游戏')).not.toBeInTheDocument();
    expect(screen.queryByText('当前项目')).not.toBeInTheDocument();
    expect(api.create).not.toHaveBeenCalled();
    expect(api.send).not.toHaveBeenCalled();
    if (role === 'teacher') {
      expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled();
      expect(screen.getByTestId('consultation-composer-actions')).toContainElement(screen.getByRole('button', { name: '老师帮我看看', exact: true }));
      expect(screen.queryByText('把你的困惑说出来就好')).not.toBeInTheDocument();
      expect(screen.queryByRole('button', { name: '固定的通用问题' })).not.toBeInTheDocument();
      expect(screen.queryByRole('button', { name: '我还没想好下一步做什么' })).not.toBeInTheDocument();
    } else {
      expect(screen.getByRole('button', { name: '固定的通用问题' })).toBeInTheDocument();
      expect(screen.queryByRole('button', { name: '老师帮我看看', exact: true })).not.toBeInTheDocument();
    }
  });

  it('requests contextual suggestions explicitly, hides streaming JSON and preserves the freeform draft', async () => {
    const streamingJson = '{"intro":"还没输出完","questions":["尚未确认的问题';
    api.send.mockImplementation(async (_base, _id, input: TeacherSend) => ({
      ...first, revision: 2, requests: [suggestionsRequest({ id: input.requestId, status: 'running', response: streamingJson, suggestedQuestions: undefined })],
    }));
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    const help = screen.getByRole('button', { name: '老师帮我看看', exact: true });
    await waitFor(() => expect(help).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我自己还想问的另一件事' } });
    fireEvent.click(help);

    await screen.findByText('我看看你最近做到了哪里…');
    expect(screen.queryByText(streamingJson)).not.toBeInTheDocument();
    expect(screen.queryByRole('button', { name: '尚未确认的问题' })).not.toBeInTheDocument();
    expect(api.send).toHaveBeenCalledWith('p/teacher', 'first', expect.objectContaining({
      intent: 'suggestions', text: '老师帮我看看', sourceConversationId: 'c',
    }));
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我自己还想问的另一件事');
    expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeDisabled();
    await waitFor(() => expect(streams.has('first')).toBe(true));
    const sent = api.send.mock.calls[0][2] as TeacherSend;
    act(() => streams.get('first')!.dispatchEvent(new MessageEvent('snapshot', { data: JSON.stringify({
      ...first, revision: 3, requests: [suggestionsRequest({ id: sent.requestId })],
    }) })));

    await screen.findByText('我们可以从最近遇到的这两个地方聊起。');
    expect(screen.queryByText('我看看你最近做到了哪里…')).not.toBeInTheDocument();
    for (const question of suggestedQuestions) expect(screen.getByRole('button', { name: question })).toBeEnabled();
    expect(screen.getByRole('button', { name: '我也说不清，你带我看看', exact: true })).toBeEnabled();
    expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled();
    expect(api.send).toHaveBeenCalledTimes(1);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我自己还想问的另一件事');
  });

  it.each([
    [suggestedQuestions[0], undefined],
    ['我也说不清，你带我看看', 'guided-help'],
  ] as const)('sends the selected help action "%s" without replacing the student draft', async (text, intent) => {
    const previous = suggestionsRequest();
    api.read.mockResolvedValue({ ...first, requests: [previous] });
    api.send.mockImplementation(async (_base, _id, input: TeacherSend) => ({
      ...first, revision: 2, requests: [previous, request({ id: input.requestId, text: input.text, intent: input.intent, response: '我们先从你刚才做的那一步看起。' })],
    }));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" quote={{ kind: 'code', text: '学生正在引用的一段代码' }} />);
    await waitFor(() => expect(screen.getByRole('button', { name: text, exact: true })).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '还在整理的自由提问' } });
    expect(api.send).not.toHaveBeenCalled();
    fireEvent.click(screen.getByRole('button', { name: text, exact: true }));
    await screen.findByText('我们先从你刚才做的那一步看起。');
    expect(api.send).toHaveBeenCalledTimes(1);
    const sent = api.send.mock.calls[0][2] as TeacherSend;
    expect(sent).toMatchObject({ text, sourceConversationId: 'c' });
    expect(sent.references).toEqual([]);
    expect(sent.intent).toBe(intent);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('还在整理的自由提问');
    expect(screen.getByText('学生正在引用的一段代码')).toBeInTheDocument();
    view.unmount();
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('还在整理的自由提问');
    expect(screen.getByText('学生正在引用的一段代码')).toBeInTheDocument();
    expect(api.send).toHaveBeenCalledTimes(1);
  });

  it('retries an uncertain suggestions request after reopening without losing the student draft', async () => {
    api.send.mockRejectedValue(new Error('网络暂不可用'));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我还没写完的问题' } });
    fireEvent.click(screen.getByRole('button', { name: '老师帮我看看', exact: true }));
    await screen.findByText('网络暂不可用');
    const originalRequest = api.send.mock.calls[0][2] as TeacherSend;
    expect(originalRequest.intent).toBe('suggestions');
    view.unmount();

    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled());
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我还没写完的问题');
    expect(api.send).toHaveBeenCalledTimes(1);
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我又补了一点自己的想法' } });
    fireEvent.click(screen.getByRole('button', { name: '老师帮我看看', exact: true }));
    await screen.findByText('网络暂不可用');
    expect(api.send.mock.calls[1][2]).toEqual(originalRequest);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我又补了一点自己的想法');
  });

  it('shows a failed suggestion request without leaking raw JSON and starts a fresh request on another try', async () => {
    const failed = suggestionsRequest({ status: 'failed', response: '{"intro":"未完成', suggestedQuestions: undefined, error: '这次没有看清楚，请再试一次。' });
    api.read.mockResolvedValue({ ...first, requests: [failed] });
    api.send.mockImplementation(async (_base, _id, input: TeacherSend) => ({
      ...first, revision: 2, requests: [failed, suggestionsRequest({ id: input.requestId })],
    }));
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await screen.findByText('这次没有看清楚，请再试一次。');
    expect(screen.queryByText('{"intro":"未完成')).not.toBeInTheDocument();
    expect(screen.queryByRole('button', { name: suggestedQuestions[0] })).not.toBeInTheDocument();
    fireEvent.click(screen.getByRole('button', { name: '再请老师看看', exact: true }));
    await screen.findByText('我们可以从最近遇到的这两个地方聊起。');
    expect(api.send.mock.calls[0][2]).toMatchObject({ intent: 'suggestions' });
    expect(api.send.mock.calls[0][2].requestId).not.toBe(failed.id);
  });

  it.each(['reopen', 'stream'] as const)('reconciles an accepted request learned through %s before retrying a failed reply', async (via) => {
    let accepted: TeacherRequest;
    api.send.mockRejectedValueOnce(new Error('响应中途断开')).mockImplementation(async (_base, _id, input: TeacherSend) => ({
      ...first, revision: 3, requests: [accepted, suggestionsRequest({ id: input.requestId })],
    }));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled());
    await waitFor(() => expect(streams.has('first')).toBe(true));
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我的自由提问继续留着' } });
    fireEvent.click(screen.getByRole('button', { name: '老师帮我看看', exact: true }));
    await screen.findByText('响应中途断开');
    const originalRequest = api.send.mock.calls[0][2] as TeacherSend;
    accepted = suggestionsRequest({ id: originalRequest.requestId, status: 'failed', response: '', suggestedQuestions: undefined, error: '老师已接到，但这次回复失败了' });
    const recovered = { ...first, revision: 2, requests: [accepted] };
    if (via === 'reopen') {
      view.unmount();
      api.read.mockResolvedValue(recovered);
      render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    } else {
      act(() => streams.get('first')!.dispatchEvent(new MessageEvent('snapshot', { data: JSON.stringify(recovered) })));
    }
    await screen.findByText('老师已接到，但这次回复失败了');
    await waitFor(() => expect(screen.getByRole('button', { name: '再请老师看看', exact: true })).toBeEnabled());
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我的自由提问继续留着');
    expect(api.send).toHaveBeenCalledTimes(1);
    fireEvent.click(screen.getByRole('button', { name: '再请老师看看', exact: true }));
    await screen.findByText('我们可以从最近遇到的这两个地方聊起。');
    expect(api.send).toHaveBeenCalledTimes(2);
    expect(api.send.mock.calls[1][2].requestId).not.toBe(originalRequest.requestId);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我的自由提问继续留着');
  });

  it('still submits a student-written question with its quote and clears only that submitted draft', async () => {
    const quote = { kind: 'code' as const, text: 'setScore(score + 1)' };
    api.send.mockImplementation(async (_base, _id, input: TeacherSend) => ({
      ...first, revision: 2, requests: [request({
        id: input.requestId, text: input.text, references: input.references ?? [], response: '你觉得每点一次，分数应该怎么变化？',
      })],
    }));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" quote={quote} />);
    await waitFor(() => expect(screen.getByLabelText('向老师提问')).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '为什么分数没有增加？' } });
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('你觉得每点一次，分数应该怎么变化？');
    expect(api.send.mock.calls[0][2]).toMatchObject({ text: '为什么分数没有增加？', references: [quote], sourceConversationId: 'c' });
    expect(api.send.mock.calls[0][2].intent).toBeUndefined();
    expect(screen.getByLabelText('向老师提问')).toHaveValue('');
    expect(screen.queryByRole('button', { name: '移除引用' })).not.toBeInTheDocument();
    expect(screen.getByRole('button', { name: '老师帮我看看', exact: true })).toBeEnabled();
    view.unmount();
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('');
    expect(screen.queryByRole('button', { name: '移除引用' })).not.toBeInTheDocument();
    expect(api.send).toHaveBeenCalledTimes(1);
  });

  it('restores a closed draft and keeps teacher, friend and project drafts separate', async () => {
    api.list.mockResolvedValue({ items: [], lastSelectedTopicId: null });
    const closed = vi.fn();
    const view = render(<TeacherChatPanel key="p-teacher" projectId="p" sourceId="c" role="teacher" onClose={closed} />);
    await waitFor(() => expect(screen.getByLabelText('向老师提问')).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我还没想清楚规则' } });
    fireEvent.click(screen.getByRole('button', { name: '关闭老师' }));
    expect(closed).toHaveBeenCalledOnce();
    view.rerender(<></>);
    view.rerender(<TeacherChatPanel key="p-teacher" projectId="p" sourceId="another-operation-chat" role="teacher" />);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我还没想清楚规则');

    view.rerender(<TeacherChatPanel key="p-friend" projectId="p" sourceId="c" role="friend" />);
    await waitFor(() => expect(screen.getByLabelText('向朋友提问')).toBeEnabled());
    expect(screen.getByLabelText('向朋友提问')).toHaveValue('');
    fireEvent.change(screen.getByLabelText('向朋友提问'), { target: { value: '想听听你的感受' } });
    view.rerender(<TeacherChatPanel key="another-teacher" projectId="another-project" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByLabelText('向老师提问')).toBeEnabled());
    expect(screen.getByLabelText('向老师提问')).toHaveValue('');
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '这个项目的另一个问题' } });

    view.rerender(<TeacherChatPanel key="p-teacher" projectId="p" sourceId="c" role="teacher" />);
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我还没想清楚规则');
    view.rerender(<TeacherChatPanel key="p-friend" projectId="p" sourceId="c" role="friend" />);
    expect(screen.getByLabelText('向朋友提问')).toHaveValue('想听听你的感受');
    expect(api.send).not.toHaveBeenCalled();
    expect(api.cancel).not.toHaveBeenCalled();
  });

  it('keeps a failed question and its request id when the consultation is reopened', async () => {
    api.send.mockRejectedValue(new Error('网络暂不可用'));
    const view = render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByLabelText('向老师提问')).toBeEnabled());
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我该怎样观察？' } });
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('网络暂不可用');
    const originalRequest = api.send.mock.calls[0][2];
    view.unmount();

    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await waitFor(() => expect(screen.getByRole('button', { name: '提问', exact: true })).toBeEnabled());
    expect(screen.getByLabelText('向老师提问')).toHaveValue('我该怎样观察？');
    expect(api.send).toHaveBeenCalledTimes(1);
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('网络暂不可用');
    expect(api.send.mock.calls[1][2]).toEqual(originalRequest);
  });

  it.each(['teacher', 'friend'] as const)('shows %s replies without redundant actions or importing advice', async (role) => {
    const bringBack = vi.fn();
    api.read.mockResolvedValue({ ...first, requests: [{
      id: 'reply', text: '游戏不好玩', references: [], createdAt: 'now',
      sourceCursor: { workerGeneration: 1, seq: 1 }, sourceCapturedAt: 'now',
      includedSourceMessageIds: [], omittedMessages: 0, status: 'completed', response: '先观察别人在哪儿停下来。',
    }] });
    render(<TeacherChatPanel projectId="p" sourceId="c" role={role} onBringBack={bringBack} />);
    await screen.findByText('先观察别人在哪儿停下来。');
    expect(screen.queryByRole('button', { name: '带回主会话草稿' })).not.toBeInTheDocument();
    expect(screen.queryByText(/记一下|项目共识|记入共识|待办/)).not.toBeInTheDocument();
    expect(screen.queryByRole('button', { name: '我去试一试' })).not.toBeInTheDocument();
    expect(screen.queryByRole('button', { name: '复制', exact: true })).not.toBeInTheDocument();
    expect(bringBack).not.toHaveBeenCalled();
    expect(api.send).not.toHaveBeenCalled();
  });

  it('keeps operations preview available without a consultation role', async () => {
    api.preview.mockResolvedValue({ payload: { ...definition, suggested_questions: ['运营配置的预览问题'] }, draft_revision: 7 });
    api.list.mockResolvedValue({ items: [], lastSelectedTopicId: null });
    api.create.mockResolvedValue({ ...first, draftRevision: 7 });
    render(<TeacherChatPanel projectId="preview" sourceId="sample" draftRevision={7} sampleContext="学生的练习代码" />);
    await waitFor(() => expect(screen.getByRole('button', { name: '老师新话题' })).toBeEnabled());
    expect(screen.getByText('运营草稿试聊')).toBeInTheDocument();
    expect(api.preview).toHaveBeenCalledWith(7);
    expect(api.config).not.toHaveBeenCalled();
    fireEvent.click(screen.getByRole('button', { name: '运营配置的预览问题' }));
    expect(screen.getByLabelText('向老师提问')).toHaveValue('运营配置的预览问题');
    expect(api.send).not.toHaveBeenCalled();
    expect(screen.queryByRole('button', { name: '老师帮我看看', exact: true })).not.toBeInTheDocument();
    fireEvent.click(screen.getByRole('button', { name: '老师新话题' }));
    await waitFor(() => expect(api.create).toHaveBeenCalledWith('preview/sample', 7, '学生的练习代码'));
  });
});


describe('pinned discussion workspace', () => {
  const ideas = { id: 'tool', revision: 1, status: 'active' as const, content: {
    kind: 'ideas' as const, title: '一起想我的宠物游戏', items: [{ id: 'dog', text: '养只小狗', state: 'kept' as const }],
  } };
  async function openDiscussion(status: 'active' | 'offered' = 'active') {
    const current = { ...structuredClone(first), discussion: { ...structuredClone(ideas), status } };
    api.read.mockResolvedValue(current);
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await screen.findByText('一起想我的宠物游戏');
    await waitFor(() => expect(streams.has('first')).toBe(true));
    return current;
  }
  it('quotes a focused item into the existing composer without sending, then sends the locked version', async () => {
    const current = await openDiscussion();
    api.send.mockImplementation(async (_base, _id, input) => ({ ...current, revision: 2, requests: [request({ text: input.text, response: '先聊聊小狗。' })] }));
    fireEvent.click(screen.getByRole('button', { name: '养只小狗', exact: true }));
    expect(api.send).not.toHaveBeenCalled();
    expect(screen.getByText('接着聊：养只小狗')).toBeVisible();
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '我希望是柯基' } });
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await waitFor(() => expect(api.send).toHaveBeenCalledWith('p/teacher', 'first', expect.objectContaining({ presentation: 'discussion-v1', discussion: { toolId: 'tool', revision: 1, focusId: 'dog' }, text: '我希望是柯基' })));
    expect(screen.getAllByTestId('teacher-discussion')).toHaveLength(1);
  });
  it('finishes provisionally, keeps the draft, chats without changing the tool, and resumes explicitly', async () => {
    const current = await openDiscussion();
    api.updateDiscussion.mockResolvedValueOnce({ ...current, revision: 2, discussion: { ...ideas, status: 'finished', revision: 2 } });
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '还在想的下一句' } });
    fireEvent.click(screen.getByRole('button', { name: '先这些', exact: true }));
    await screen.findByText('先留在这里');
    expect(screen.getByLabelText('向老师提问')).toHaveValue('还在想的下一句');
    expect(screen.getByTestId('teacher-discussion')).toHaveAttribute('data-collapsed', 'true');
    api.send.mockImplementation(async (_base, _id, input) => ({ ...current, revision: 3, discussion: { ...ideas, status: 'finished', revision: 2 }, requests: [request({ text: input.text, response: '我们慢慢聊。' })] }));
    fireEvent.click(screen.getByRole('button', { name: '提问', exact: true }));
    await screen.findByText('我们慢慢聊。');
    expect(api.send.mock.calls[0][2].discussion).toBeUndefined();
    api.updateDiscussion.mockResolvedValueOnce({ ...current, revision: 4, discussion: { ...ideas, revision: 3 } });
    fireEvent.click(screen.getByRole('button', { name: '接着改', exact: true }));
    await screen.findByRole('button', { name: '养只小狗', exact: true });
    expect(api.updateDiscussion.mock.calls[1][2]).toEqual({ toolId: 'tool', revision: 2, action: 'resume' });
  });
  it('offers a tool before activating, and preserves a draft during explicit structure conversion', async () => {
    const current = await openDiscussion('offered');
    api.updateDiscussion.mockResolvedValue({ ...current, revision: 2, discussion: { ...ideas, revision: 2 } });
    expect(screen.getByRole('button', { name: '养只小狗', exact: true })).toBeDisabled();
    fireEvent.click(screen.getByRole('button', { name: '用这个一起想', exact: true }));
    await screen.findByRole('button', { name: '把想法理一理', exact: true });
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '不要丢掉的草稿' } });
    api.send.mockResolvedValue({ ...current, revision: 3, discussion: { ...ideas, revision: 2 }, requests: [] });
    fireEvent.click(screen.getByRole('button', { name: '把想法理一理', exact: true }));
    await waitFor(() => expect(api.send).toHaveBeenCalled());
    expect(api.send.mock.calls[0][2].discussion).toEqual({ toolId: 'tool', revision: 2, transition: 'structure' });
    expect(screen.getByLabelText('向老师提问')).toHaveValue('不要丢掉的草稿');
  });
  it('uses the same pinned component for SSE updates and leaves it untouched while thinking or stopping', async () => {
    const current = await openDiscussion();
    const stream = streams.get('first')!;
    const updating = { ...current, revision: 2, requests: [request({ status: 'running', response: '', discussionContext: { toolId: 'tool', revision: 1 } })] };
    act(() => stream.dispatchEvent(new MessageEvent('snapshot', { data: JSON.stringify(updating) })));
    expect(screen.getByRole('status')).toHaveTextContent('正在梳理');
    expect(screen.getByRole('button', { name: '养只小狗', exact: true })).toBeVisible();
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '下一轮草稿' } });
    api.cancel.mockResolvedValue({ ...updating, revision: 3, requests: [request({ status: 'cancelled' })] });
    fireEvent.click(screen.getByRole('button', { name: '停止回复' }));
    await screen.findByText('这次先停在这里。想继续时可以再说说。');
    expect(screen.getByLabelText('向老师提问')).toHaveValue('下一轮草稿');
    act(() => stream.dispatchEvent(new MessageEvent('snapshot', { data: JSON.stringify({ ...current, revision: 4, discussion: { ...ideas, revision: 2, content: { ...ideas.content, title: '一起想小狗和花园' } } }) })));
    expect(screen.getAllByTestId('teacher-discussion')).toHaveLength(1);
    expect(screen.getByText('一起想小狗和花园')).toBeVisible();
  });
  it('sends a normal suggested question directly without changing the composer draft', async () => {
    const current = { ...first, requests: [request({ response: '先听听你的想法。', suggestedQuestions: ['怎样知道小狗喜欢我？'] })] };
    api.read.mockResolvedValue(current);
    api.send.mockResolvedValue({ ...current, revision: 2 });
    render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
    await screen.findByRole('button', { name: '怎样知道小狗喜欢我？' });
    fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '自己的草稿' } });
    fireEvent.click(screen.getByRole('button', { name: '怎样知道小狗喜欢我？' }));
    await waitFor(() => expect(api.send).toHaveBeenCalled());
    expect(api.send.mock.calls[0][2].text).toBe('怎样知道小狗喜欢我？');
    expect(screen.getByLabelText('向老师提问')).toHaveValue('自己的草稿');
    expect(screen.queryByTestId('teacher-discussion')).not.toBeInTheDocument();
  });
});


it('comparison focuses and directly sends the selected difference while preserving the existing draft', async () => {
  const current = { ...first, discussion: { id: 'compare', revision: 3, status: 'active' as const, content: {
    kind: 'comparison' as const, title: '它什么时候回应我？', columns: [{ id: 'a', label: '点击才回应' }, { id: 'b', label: '主动回应' }], rows: [{ id: 'home', label: '回到家时', cells: [{ columnId: 'a', text: '等我点击' }, { columnId: 'b', text: '跑来欢迎我' }] }],
  } } };
  api.read.mockResolvedValue(current);
  api.send.mockResolvedValue({ ...current, revision: 2 });
  render(<TeacherChatPanel projectId="p" sourceId="c" role="teacher" />);
  await screen.findByText('回到家时');
  fireEvent.change(screen.getByLabelText('向老师提问'), { target: { value: '自己还没说完的话' } });
  fireEvent.click(screen.getAllByRole('button', { name: '聊聊这一点' })[1]);
  await waitFor(() => expect(api.send).toHaveBeenCalled());
  expect(api.send.mock.calls[0][2]).toMatchObject({ text: '聊聊「回到家时」时，「主动回应」这一点：跑来欢迎我', discussion: { toolId: 'compare', revision: 3, focusId: 'home:b' } });
  expect(screen.getByLabelText('向老师提问')).toHaveValue('自己还没说完的话');
  expect(screen.getAllByTestId('teacher-discussion')).toHaveLength(1);
});