import { test, expect } from '@playwright/test';
import { _electron as electron } from 'playwright';
import { promises as fs } from 'node:fs';
import nodePath from 'node:path';
import os from 'node:os';

const MAIN_JS = nodePath.join(process.cwd(), 'dist-electron/main/index.js');

test('思维导图+知识图谱渲染验证（含可见性）', async () => {
  const tmp = await fs.mkdtemp(nodePath.join(os.tmpdir(), 'hn-graph-fix-'));
  const userData = nodePath.join(tmp, 'userdata');
  const vault = nodePath.join(tmp, 'vault');
  await fs.mkdir(userData, { recursive: true });
  await fs.mkdir(vault, { recursive: true });
  await fs.writeFile(nodePath.join(vault, 'doc1.md'), '---\ntitle: 文档一\nlinks:\n  - doc2.md\n---\n# 文档一\n链接到 doc2');
  await fs.writeFile(nodePath.join(vault, 'doc2.md'), '---\ntitle: 文档二\n---\n# 文档二\n内容');

  const app = await electron.launch({ args: ['--user-data-dir=' + userData, MAIN_JS] });
  const page = await app.firstWindow();
  await page.waitForLoadState('domcontentloaded');
  const invoke = (ch: string, args: any) => page.evaluate(({ ch, args }) => (globalThis as any).dsh.invoke(ch, args), { ch, args });
  await invoke('vault:switch', { root: vault });
  await page.evaluate(() => (window as any).__STORE__.getState().loadTree());
  await page.waitForTimeout(1000);

  // Switch to graph view (default mode is mindmap)
  await page.getByTitle('切换 编辑器/图谱').click();
  await page.waitForTimeout(2000);

  // Mindmap: verify SVG has non-zero size AND visible content
  const mindmap = await page.evaluate(() => {
    const svg = document.querySelector('.markmap-dark svg');
    if (!svg) return { found: false };
    const rect = svg.getBoundingClientRect();
    const fo = svg.querySelectorAll('foreignObject').length;
    const g = svg.querySelectorAll('g').length;
    // Check that content is actually visible (has bounding boxes within the svg)
    const visibleContent = Array.from(svg.querySelectorAll('g.markmap-node')).some((el) => {
      const r = el.getBoundingClientRect();
      return r.width > 0 && r.height > 0;
    });
    return { found: true, w: rect.width, h: rect.height, foreignObject: fo, g, visibleContent };
  });
  console.log('Mindmap:', JSON.stringify(mindmap));
  expect(mindmap.found).toBe(true);
  expect(mindmap.h).toBeGreaterThan(100); // svg must have real height
  expect(mindmap.foreignObject).toBeGreaterThan(0);
  expect(mindmap.visibleContent).toBe(true); // content must be visibly rendered

  // Switch to knowledge graph mode
  await page.getByRole('button', { name: '知识图谱' }).click();
  await page.waitForTimeout(3000);

  const graph = await page.evaluate(() => {
    const svgs = document.querySelectorAll('svg');
    let svg: SVGElement | null = null;
    for (const s of svgs) { if (s.querySelectorAll('g[transform]').length > 0 || s.querySelectorAll('rect').length > 1) { svg = s; break; } }
    if (!svg) return { found: false };
    const rect = svg.getBoundingClientRect();
    const rects = svg.querySelectorAll('rect').length;
    const texts = svg.querySelectorAll('text').length;
    const lines = svg.querySelectorAll('line').length;
    // Check a node card is visible within the svg
    const visibleCard = Array.from(svg.querySelectorAll('rect')).some((r) => {
      const b = r.getBoundingClientRect();
      return b.width > 0 && b.height > 0;
    });
    return { found: true, w: rect.width, h: rect.height, rects, texts, lines, visibleCard };
  });
  console.log('Knowledge graph:', JSON.stringify(graph));
  expect(graph.found).toBe(true);
  expect(graph.h).toBeGreaterThan(100);
  expect(graph.rects).toBeGreaterThanOrEqual(5);
  expect(graph.lines).toBeGreaterThanOrEqual(1);
  expect(graph.visibleCard).toBe(true);

  await app.close();
});