import { fireEvent, render, screen, waitFor } from '@testing-library/react';
import { MemoryRouter, Route, Routes } from 'react-router-dom';
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { ImagePromptMuseum } from '@/pages/ImagePromptMuseum';
import { useImagePromptMuseumStore } from '@/stores/image-prompt-museum';
import type { PromptMuseumEntry, PromptMuseumPage } from '../../shared/image-prompt-museum';

const fetchPromptMuseumPageMock = vi.hoisted(() => vi.fn());
const fetchPromptMuseumEntryMock = vi.hoisted(() => vi.fn());
const fetchPromptMuseumMediaMock = vi.hoisted(() => vi.fn());

vi.mock('@/lib/image-prompt-museum', async (importOriginal) => {
  const actual = await importOriginal<typeof import('@/lib/image-prompt-museum')>();
  return {
    ...actual,
    fetchPromptMuseumPage: (...args: unknown[]) => fetchPromptMuseumPageMock(...args),
    fetchPromptMuseumEntry: (...args: unknown[]) => fetchPromptMuseumEntryMock(...args),
    fetchPromptMuseumMedia: (...args: unknown[]) => fetchPromptMuseumMediaMock(...args),
  };
});

const pageFixture: PromptMuseumPage = {
  items: [{
    id: 'prompt-one',
    slug: 'editorial-poster',
    title: '编辑感产品海报',
    summary: '一张留白充足的编辑版式海报。',
    thumbnail: {
      url: 'https://cdn.example.com/prompt-one/thumb.webp',
      width: 1200,
      height: 900,
      alt: '编辑感产品海报示例',
    },
    categories: [
      { id: 'poster', name: '海报', group: 'use_case' },
      { id: 'editorial', name: '编辑感', group: 'style' },
    ],
    model: { id: 'gpt-image-2', name: 'GPT Image 2' },
    language: 'zh-CN',
    attribution: {
      author: { name: '示例作者' },
      source: { name: '示例来源', url: 'https://example.com/source' },
      license: { name: 'CC BY 4.0', attributionText: '示例作者 / 示例来源 / CC BY 4.0' },
    },
    publishedAt: '2026-08-01T00:00:00Z',
    updatedAt: '2026-08-01T00:00:00Z',
  }],
  facets: {
    useCases: [{ id: 'poster', name: '海报', count: 1 }],
    styles: [{ id: 'editorial', name: '编辑感', count: 1 }],
    subjects: [],
  },
  nextCursor: null,
  total: 1,
};

const entryFixture: PromptMuseumEntry = {
  ...pageFixture.items[0],
  prompt: 'Create a clean editorial product poster with generous negative space.',
  variables: [],
  images: [pageFixture.items[0].thumbnail],
  requiresReferenceImages: false,
};

describe('Prompt Museum page', () => {
  beforeEach(() => {
    vi.clearAllMocks();
    useImagePromptMuseumStore.getState().clearPendingPrompt();
    fetchPromptMuseumPageMock.mockResolvedValue(pageFixture);
    fetchPromptMuseumEntryMock.mockResolvedValue(entryFixture);
    fetchPromptMuseumMediaMock.mockResolvedValue('data:image/webp;base64,AQID');
  });

  it('keeps the inspiration filters compact and below the native title bar', async () => {
    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
        </Routes>
      </MemoryRouter>,
    );

    expect(screen.queryByText('提示词博物馆')).not.toBeInTheDocument();
    expect(screen.getByTestId('image-prompt-museum-filters')).toHaveClass('sticky', 'top-0');
  });

  it('renders server cards, opens attribution details, and sends the exact prompt back to Canvas', async () => {
    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
          <Route path="/image-canvas" element={<div data-testid="canvas-target">Canvas</div>} />
        </Routes>
      </MemoryRouter>,
    );

    fireEvent.click(await screen.findByRole('button', { name: '查看 编辑感产品海报' }));
    expect(await screen.findByText('示例作者')).toBeInTheDocument();
    expect(screen.getByText('示例来源')).toBeInTheDocument();
    expect(screen.getByText(entryFixture.prompt)).toBeInTheDocument();

    fireEvent.click(screen.getByRole('button', { name: '使用此 Prompt' }));
    await waitFor(() => expect(screen.getByTestId('canvas-target')).toBeInTheDocument());
    expect(useImagePromptMuseumStore.getState().pendingPrompt).toEqual({
      promptId: entryFixture.id,
      title: entryFixture.title,
      prompt: entryFixture.prompt,
    });
  });

  it('loads the next server cursor without bundling another page locally', async () => {
    const secondItem = { ...pageFixture.items[0], id: 'prompt-two', title: '第二条灵感' };
    fetchPromptMuseumPageMock
      .mockResolvedValueOnce({ ...pageFixture, nextCursor: 'cursor-two' })
      .mockResolvedValueOnce({ ...pageFixture, items: [secondItem], nextCursor: null });

    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
        </Routes>
      </MemoryRouter>,
    );

    fireEvent.click(await screen.findByRole('button', { name: '加载更多' }));
    expect(await screen.findByRole('button', { name: '查看 第二条灵感' })).toBeInTheDocument();
    expect(fetchPromptMuseumPageMock).toHaveBeenNthCalledWith(
      2,
      expect.objectContaining({ cursor: 'cursor-two' }),
    );
  });

  it('renders source attribution as text when the server omits its optional URL', async () => {
    fetchPromptMuseumEntryMock.mockResolvedValueOnce({
      ...entryFixture,
      attribution: {
        ...entryFixture.attribution,
        source: { name: 'PromptHero' },
      },
    });

    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
        </Routes>
      </MemoryRouter>,
    );

    fireEvent.click(await screen.findByRole('button', { name: '查看 编辑感产品海报' }));
    expect(await screen.findByText('PromptHero')).toBeInTheDocument();
    expect(screen.queryByRole('link', { name: 'PromptHero' })).not.toBeInTheDocument();
  });

  it('loads relative media through Main and renders its data URL', async () => {
    fetchPromptMuseumPageMock.mockResolvedValueOnce({
      ...pageFixture,
      items: [{
        ...pageFixture.items[0],
        thumbnail: {
          ...pageFixture.items[0].thumbnail,
          url: '/api/image-prompt-museum/prompt-one/media/thumbnail',
        },
      }],
    });

    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
        </Routes>
      </MemoryRouter>,
    );

    const image = await screen.findByRole('img', { name: '编辑感产品海报示例' });
    expect(image).toHaveAttribute('src', 'data:image/webp;base64,AQID');
    expect(fetchPromptMuseumMediaMock).toHaveBeenCalledWith(
      '/api/image-prompt-museum/prompt-one/media/thumbnail',
    );
  });

  it('keeps a card usable when its relative image fails', async () => {
    fetchPromptMuseumMediaMock.mockRejectedValueOnce(new Error('image unavailable'));
    fetchPromptMuseumPageMock.mockResolvedValueOnce({
      ...pageFixture,
      items: [{
        ...pageFixture.items[0],
        thumbnail: {
          ...pageFixture.items[0].thumbnail,
          url: '/api/image-prompt-museum/prompt-one/media/thumbnail',
        },
      }],
    });

    render(
      <MemoryRouter initialEntries={['/image-prompts']}>
        <Routes>
          <Route path="/image-prompts" element={<ImagePromptMuseum />} />
        </Routes>
      </MemoryRouter>,
    );

    expect(await screen.findByLabelText('编辑感产品海报示例加载失败')).toBeInTheDocument();
    expect(screen.getByRole('button', { name: '查看 编辑感产品海报' })).toBeEnabled();
  });
});