import { act, fireEvent, render, screen, waitFor, within } from '@testing-library/react';
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { ImageWorkspaceApiError } from '@/lib/image-workspace';
import { ImageCanvas } from '@/pages/ImageCanvas';
import { useAuthStore } from '@/stores/auth';
import { useImagePromptMuseumStore } from '@/stores/image-prompt-museum';
import { useImageWorkspaceStore } from '@/stores/image-workspace';
import {
  designBootstrapFixture,
  designFormFixture,
  designQuoteFixture,
  designWorkspaceFixture,
} from '../fixtures/design-workspace-v2';

const { toastErrorMock } = vi.hoisted(() => ({ toastErrorMock: vi.fn() }));

vi.mock('sonner', () => ({
  toast: { error: toastErrorMock, success: vi.fn() },
}));

vi.mock('@/lib/image-workspace', async (importOriginal) => {
  const original = await importOriginal<typeof import('@/lib/image-workspace')>();
  return {
    ...original,
    resolveImageWorkspaceAssetUrl: vi.fn().mockResolvedValue('http://127.0.0.1/asset'),
    saveImageWorkspaceAsset: vi.fn().mockResolvedValue({ status: 'saved' }),
    uploadImageWorkspaceAsset: vi.fn(),
  };
});

function prepareWorkspace(overrides = {}) {
  const workspace = designWorkspaceFixture(overrides);
  const actions = {
    load: vi.fn(),
    connectEvents: vi.fn(),
    disconnectEvents: vi.fn(),
    refreshWorkspace: vi.fn().mockResolvedValue(workspace),
    applyFieldOperations: vi.fn().mockResolvedValue(workspace),
    sendChat: vi.fn().mockResolvedValue(workspace),
    resolveDecisionPrompt: vi.fn().mockResolvedValue(workspace),
    requestQuote: vi.fn().mockResolvedValue(workspace),
    confirmGeneration: vi.fn().mockResolvedValue(workspace),
    retryOperation: vi.fn().mockResolvedValue(workspace),
  };
  useImageWorkspaceStore.setState({
    status: 'ready',
    bootstrap: designBootstrapFixture(workspace.workspace),
    activeWorkspaceId: workspace.workspace.workspaceId,
    workspace,
    eventState: 'connected',
    lastEventId: null,
    pendingOperations: {},
    fieldDrafts: {},
    chatDraft: '',
    assistantStreams: {},
    quoteBlockers: [],
    error: null,
    ...actions,
  });
  return { workspace, actions };
}

function openMobileCreationCard() {
  fireEvent.click(screen.getByRole('button', { name: /^当前想法与作品/ }));
}

describe('youth AI Design Canvas page', () => {
  beforeEach(() => {
    vi.clearAllMocks();
    useAuthStore.setState({
      initialized: true,
      accessToken: 'token',
      expiresAt: Date.now() + 60_000,
    });
    useImagePromptMuseumStore.setState({ pendingPrompt: null });
    useImageWorkspaceStore.getState().reset();
  });

  it('starts with a guided conversation and keeps the structured summary secondary', () => {
    prepareWorkspace();
    render(<ImageCanvas />);

    expect(screen.getByTestId('image-workspace-conversation')).toBeInTheDocument();
    expect(screen.getByRole('heading', { name: '和 AI 聊聊你的想法' })).toBeInTheDocument();
    expect(screen.getByText('像和同学讲故事一样说就好。AI 会先听懂，再一次问一个最重要的问题。')).toBeInTheDocument();
    openMobileCreationCard();
    const card = screen.getByTestId('youth-creation-card');
    expect(card).toBeInTheDocument();
    expect(within(card).getByRole('heading', { name: 'AI 听懂的想法' })).toBeInTheDocument();
    expect(screen.getByText('做一张便携咖啡机的小红书主视觉')).toBeInTheDocument();
    expect(screen.queryByText('Living Form')).not.toBeInTheDocument();
    expect(screen.queryByText('目标与用途')).not.toBeInTheDocument();
    expect(screen.queryByText(/规格版本|编译器|生成策略|字段决策/)).not.toBeInTheDocument();
  });

  it('keeps unfinished AI output out of the conversation while send status stays visible', () => {
    prepareWorkspace();
    const unfinishedDraft = '收到，我们要收到，我们要制作一张社团活动海报。';
    useImageWorkspaceStore.setState({
      assistantStreams: { 'operation-chat-1': unfinishedDraft },
      pendingOperations: {
        'operation-chat-1': {
          id: 'operation-chat-1',
          label: '发送创作想法',
          command: {
            kind: 'apply_input',
            workspaceId: 'workspace-1',
            sessionId: 'session-1',
            expectedDirectionRevision: 4,
            clientOperationId: 'operation-chat-1',
            input: { kind: 'chat', message: '做一张社团活动海报' },
          },
          status: 'submitting',
          error: null,
          clearDraftPaths: [],
          clearChatDraft: true,
        },
      },
    });

    render(<ImageCanvas />);

    const conversation = screen.getByTestId('image-workspace-conversation');
    const pendingMessage = within(conversation).getByTestId('pending-design-chat-operation-chat-1');
    expect(within(pendingMessage).getByText('做一张社团活动海报')).toBeInTheDocument();
    expect(within(pendingMessage).getByText('发送中')).toBeInTheDocument();
    expect(within(conversation).queryByTestId('design-assistant-progress')).not.toBeInTheDocument();
    expect(within(conversation).queryByText('AI 正在整理你的想法')).not.toBeInTheDocument();
    expect(within(conversation).getByText('我已经整理了用途、受众和初步概念，请确认右侧建议。')).toBeInTheDocument();
    expect(within(conversation).queryByText(unfinishedDraft)).not.toBeInTheDocument();
  });

  it('shows a submitted message immediately and replaces it with the canonical turn', async () => {
    const message = '画一只在月球踢球的熊猫';
    const { workspace } = prepareWorkspace({ turns: [] });
    useImageWorkspaceStore.setState({
      chatDraft: message,
      pendingOperations: {
        'operation-chat-1': {
          id: 'operation-chat-1',
          label: '发送消息',
          command: {
            kind: 'apply_input',
            workspaceId: 'workspace-1',
            sessionId: 'session-1',
            expectedDirectionRevision: 4,
            clientOperationId: 'operation-chat-1',
            input: { kind: 'chat', message },
          },
          status: 'submitting',
          error: null,
          clearDraftPaths: [],
          clearChatDraft: true,
        },
      },
    });

    render(<ImageCanvas />);

    const conversation = screen.getByTestId('image-workspace-conversation');
    const pendingMessage = within(conversation).getByTestId('pending-design-chat-operation-chat-1');
    expect(within(pendingMessage).getByText(message)).toBeInTheDocument();
    expect(within(pendingMessage).getByText('发送中')).toBeInTheDocument();
    expect(within(conversation).queryByRole('heading', { name: '先把脑中的画面说出来' }))
      .not.toBeInTheDocument();
    expect(within(conversation).getByRole('textbox', { name: '告诉 AI 你想创作什么' }))
      .toHaveValue('');

    act(() => {
      useImageWorkspaceStore.setState((state) => ({
        pendingOperations: {
          ...state.pendingOperations,
          'operation-chat-1': {
            ...state.pendingOperations['operation-chat-1']!,
            status: 'unknown',
          },
        },
      }));
    });
    expect(within(pendingMessage).getByText('正在确认')).toBeInTheDocument();
    expect(within(conversation).getByRole('textbox', { name: '告诉 AI 你想创作什么' }))
      .toHaveValue('');

    act(() => {
      useImageWorkspaceStore.setState({
        workspace: {
          ...workspace,
          turns: [{
            turnId: 'turn-2',
            rawTurnSequence: 2,
            userMessage: message,
            assistantMessage: '听起来很有趣！你希望画面更像漫画，还是更像电影？',
          }],
        },
        chatDraft: '',
        pendingOperations: {},
      });
    });

    await waitFor(() => {
      expect(within(conversation).getAllByText(message)).toHaveLength(1);
    });
    expect(within(conversation).queryByTestId('pending-design-chat-operation-chat-1'))
      .not.toBeInTheDocument();
    expect(within(conversation).queryByText('发送中')).not.toBeInTheDocument();
    expect(within(conversation).getByText(/更像漫画，还是更像电影/)).toBeInTheDocument();
  });

  it('invites a free description and does not turn a legacy decision prompt into a form', () => {
    const workspace = designWorkspaceFixture({
      form: designFormFixture({
        decisionPrompts: [{
          id: 'choice-1',
          kind: 'question',
          basedOnSpecificationRevisionId: 'specification-revision-3',
          targetPaths: ['visual.art_direction'],
          title: '画面想要什么感觉？',
          body: '请从下面选一个。',
          options: [
            { id: 'cartoon', label: '有趣的卡通', description: null },
            { id: 'cinema', label: '像电影一样', description: null },
          ],
        }],
      }),
      turns: [],
    });
    prepareWorkspace(workspace);
    render(<ImageCanvas />);

    const conversation = screen.getByTestId('image-workspace-conversation');
    expect(within(conversation).getByRole('heading', { name: '先把脑中的画面说出来' })).toBeInTheDocument();
    expect(within(conversation).getByText(/想画什么、发生在哪里/)).toBeInTheDocument();
    expect(within(conversation).queryByText('画面想要什么感觉？')).not.toBeInTheDocument();
    expect(within(conversation).queryByRole('button', { name: '有趣的卡通' })).not.toBeInTheDocument();

    fireEvent.click(within(conversation).getByRole('button', { name: '我想做一张热闹的社团招新海报' }));
    expect(within(conversation).getByRole('textbox', { name: '告诉 AI 你想创作什么' })).toHaveValue(
      '我想做一张热闹的社团招新海报',
    );
  });

  it('sends high-impact fine adjustments through the existing typed field operations', () => {
    const { actions } = prepareWorkspace();
    render(<ImageCanvas />);

    openMobileCreationCard();
    fireEvent.click(screen.getByRole('button', { name: '手动调整（可选）' }));
    fireEvent.click(screen.getByRole('button', { name: '电脑横屏' }));

    expect(actions.applyFieldOperations).toHaveBeenCalledWith(
      [
        { kind: 'set', path: 'output.aspect_ratio', value: '16:9' },
        { kind: 'set', path: 'output.orientation', value: 'landscape' },
      ],
      [],
    );
  });

  it('shows a plain-language production confirmation and confirms only the Quote identity', () => {
    const quote = designQuoteFixture();
    quote.warnings = [{
      code: 'reference_observation_fallback',
      message: 'Reference observations were not reviewed by the frozen compiler.',
      severity: 'warning',
      path: 'references',
    }];
    const workspace = designWorkspaceFixture({
      form: designFormFixture({ activeQuotes: [quote] }),
    });
    const { actions } = prepareWorkspace(workspace);
    render(<ImageCanvas />);

    openMobileCreationCard();
    expect(screen.getByRole('heading', { name: '制作方案准备好了' })).toBeInTheDocument();
    expect(screen.getByText('12')).toBeInTheDocument();
    expect(screen.getByText('有张参考图还没检查完成，AI 会谨慎使用它。')).toBeInTheDocument();
    expect(screen.queryByText(/frozen compiler/i)).not.toBeInTheDocument();
    expect(screen.queryByDisplayValue(/prompt/i)).not.toBeInTheDocument();
    expect(screen.queryByText(/规格版本|报价已冻结|生成方式|不可变/)).not.toBeInTheDocument();
    fireEvent.click(screen.getByRole('button', { name: '花 12 设计点开始制作' }));
    expect(actions.confirmGeneration).toHaveBeenCalledWith('quote-1');
  });

  it('prefills a museum Prompt without automatically submitting it', () => {
    const { actions } = prepareWorkspace();
    useImagePromptMuseumStore.setState({
      pendingPrompt: { promptId: 'prompt-1', title: '灵感', prompt: '做一张冷色调产品海报' },
    });
    render(<ImageCanvas />);

    expect(screen.getByDisplayValue('做一张冷色调产品海报')).toBeInTheDocument();
    expect(actions.sendChat).not.toHaveBeenCalled();
  });

  it('shows the safe reasoner failure instead of claiming the message was not sent', async () => {
    const { actions } = prepareWorkspace();
    actions.sendChat.mockRejectedValueOnce(new ImageWorkspaceApiError(
      502,
      'design_reasoner_invalid',
      'AI 没有整理好这次想法，请再试一次',
    ));
    render(<ImageCanvas />);

    fireEvent.change(screen.getByRole('textbox', { name: '告诉 AI 你想创作什么' }), {
      target: { value: '画一只会做饭的机器人' },
    });
    fireEvent.click(screen.getByRole('button', { name: '发送消息' }));

    await waitFor(() => {
      expect(toastErrorMock).toHaveBeenCalledWith(
        'AI 这次没听懂。你的内容还在输入框里，可以补充一个画面细节后再发送',
      );
    });
    expect(toastErrorMock).not.toHaveBeenCalledWith('消息没有发出去，请再试一次');
  });

  it('explains an unknown accepted result without suggesting a second production', () => {
    const { actions } = prepareWorkspace();
    useImageWorkspaceStore.setState({
      pendingOperations: {
        'operation-1': {
          id: 'operation-1',
          label: '准备制作方案',
          command: {
            kind: 'request_quote',
            workspaceId: 'workspace-1',
            sessionId: 'session-1',
            expectedDirectionRevision: 4,
            specificationRevision: 3,
            clientOperationId: 'operation-1',
          },
          status: 'unknown',
          error: '网络已断开',
          clearDraftPaths: [],
          clearChatDraft: false,
        },
      },
    });
    render(<ImageCanvas />);

    openMobileCreationCard();
    expect(screen.getByText('还在确认刚才的操作')).toBeInTheDocument();
    expect(screen.getByText(/不会重复制作或重复扣费/)).toBeInTheDocument();
    fireEvent.click(screen.getByRole('button', { name: '查看原来的结果' }));
    expect(actions.retryOperation).toHaveBeenCalledWith('operation-1');
  });

  it('opens project creation when the account has no Design Workspace', () => {
    useImageWorkspaceStore.setState({
      status: 'ready',
      bootstrap: { ...designBootstrapFixture(), workspaces: [] },
      activeWorkspaceId: null,
      workspace: null,
      error: null,
      load: vi.fn(),
    });
    const listener = vi.fn();
    window.addEventListener('niancode:image-workspace:create-project', listener);
    render(<ImageCanvas />);

    fireEvent.click(screen.getByRole('button', { name: '开始第一个创作' }));
    expect(listener).toHaveBeenCalledOnce();
    window.removeEventListener('niancode:image-workspace:create-project', listener);
  });
});