import assert from 'node:assert/strict';
import fs from 'node:fs/promises';
import path from 'node:path';
import os from 'node:os';
import { fileURLToPath } from 'node:url';
import { chromium } from 'playwright';

// This test loads the real YouTube website. No routes or page fixtures.
const root = path.dirname(path.dirname(fileURLToPath(import.meta.url)));
const artifacts = path.join(root, 'test-artifacts');
await fs.mkdir(artifacts,{recursive:true});
const profile = await fs.mkdtemp(path.join(os.tmpdir(),'ytdl-live-shorts-'));
const context = await chromium.launchPersistentContext(profile,{
  headless:true, viewport:{width:2160,height:1100},
  executablePath:'C:/Program Files (x86)/Microsoft/Edge/Application/msedge.exe',
  ignoreDefaultArgs:['--disable-extensions'], args:['--enable-unsafe-extension-debugging','--mute-audio'],
});
const cards = 'ytm-shorts-lockup-view-model, yt-shorts-lockup-view-model, ytd-reel-item-renderer';
try {
  const cdp = await context.browser().newBrowserCDPSession();
  const {id} = await cdp.send('Extensions.loadUnpacked',{path:path.join(root,'extension')});
  const worker = context.serviceWorkers()[0] || await context.waitForEvent('serviceworker');
  await worker.evaluate(() => chrome.storage.local.set({onboarding:{state:'complete',version:1}}));
  const page = await context.newPage();
  const errors=[]; page.on('pageerror',error => errors.push(error.message));
  console.log('Loading real YouTube search in Edge with the actual extension.');
  await page.goto(process.env.YTDL_LIVE_URL || 'https://www.youtube.com/results?search_query=subnautica+shorts',{waitUntil:'domcontentloaded',timeout:60000});
  console.log('YouTube document loaded:',page.url());
  const consent=page.getByRole('button',{name:/Reject all|Отклонить все/i}).first();
  if(await consent.isVisible()) await consent.click();
  await page.locator(cards).first().waitFor({timeout:60000});
  const first=page.locator(cards).first(); await first.scrollIntoViewIfNeeded();
  await page.waitForTimeout(1000);
  const snapshot=()=>page.evaluate(selector => {
    const box=node=>node ? {...node.getBoundingClientRect().toJSON()} : null;
    const inspect=node=>({tag:node.tagName,class:node.className,display:getComputedStyle(node).display,
      overflowX:getComputedStyle(node).overflowX,overflowY:getComputedStyle(node).overflowY,rect:box(node),offsetWidth:node.offsetWidth});
    return {url:location.href,viewport:{width:innerWidth,height:innerHeight},cards:[...document.querySelectorAll(selector)].slice(0,6).map(card=>{
      const host=document.querySelector(`[data-ytdl-preview-for="${card.dataset.ytdlPreview}"]`);
      let ancestors=[];for(let element=card; element;element=element.parentElement)ancestors.push(inspect(element));
      return {html:card.outerHTML.slice(0,16000),media:[...card.querySelectorAll('img,video')].map(inspect),ancestors,control:host ? {style:host.getAttribute('style'),rect:box(host),buttons:[...host.shadowRoot.querySelectorAll('button')].map(inspect)} : null};
    }),videos:[...document.querySelectorAll('video')].map(video=>({time:video.currentTime,paused:video.paused,rect:box(video)}))};
  },cards);
  const before=await snapshot();
  await fs.writeFile(path.join(artifacts,'live-shorts-before.json'),JSON.stringify(before,null,2));
  await page.screenshot({path:path.join(artifacts,'live-shorts-before.png')});
  console.log('Actual Shorts cards:',before.cards.length,'Controls:',before.cards.map(card=>card.control?.style || 'missing'));
  if(process.env.YTDL_LIVE_DIAGNOSTIC==='1') {
    console.log('Live DOM diagnostics saved.');
  } else {
    const key=await first.getAttribute('data-ytdl-preview');
    assert.ok(key,'Real Shorts card must have extension controls');
    const host=page.locator(`[data-ytdl-preview-for="${key}"]`);
    await host.locator('.download').waitFor({state:'visible',timeout:15000});
    const thumbnail=first.locator('a').filter({has:first.locator('img')}).first();
    const target=await thumbnail.count() ? thumbnail : first;
    await target.hover();
    await page.waitForFunction(() => [...document.querySelectorAll('video')].some(video =>
      !video.paused && video.currentTime > 1 && video.getBoundingClientRect().width > 0),{},{timeout:20000});
    const after=await snapshot();
    await fs.writeFile(path.join(artifacts,'live-shorts-hover.json'),JSON.stringify(after,null,2));
    await page.screenshot({path:path.join(artifacts,'live-shorts-hover.png')});
    const shelf=first.locator('xpath=ancestor::*[self::grid-shelf-view-model or self::ytd-rich-shelf-renderer or self::ytd-reel-shelf-renderer][1]');
    if(await shelf.count()) await shelf.screenshot({path:path.join(artifacts,'live-shorts-proof.png')});
    assert.ok(after.videos.some(video=>!video.paused && video.time>1 && video.rect.width>0),'Real YouTube preview video must actually play');
    await host.locator('.download').waitFor({state:'visible'});
    assert.equal(await host.locator('.settings').isVisible(),true);
    const hit=await host.evaluate(node=>{const r=node.getBoundingClientRect();return document.elementFromPoint(r.left+17,r.top+17)===node;});
    assert.equal(hit,true,'Real hover player must not cover the download button');
    await host.locator('.settings').click();
    await page.locator('#ytdl-menu iframe').waitFor({state:'visible'});
    const menu=page.frameLocator('#ytdl-menu iframe');
    await menu.locator('#helper-panel:not([data-state="checking"]):not([data-state="idle"])').waitFor({timeout:90000});
    const helperStatus=await menu.locator('#helper-panel').getAttribute('data-state');
    if(helperStatus==='running') assert.equal(await menu.locator('.dependency-row[data-status="installed"]').count(),5);
    else assert.equal(await menu.locator('.dependency-row[data-status="installed"]').count(),0,'Unavailable helper must not retain ready component indicators');
    assert.ok(!/disconnected port object/i.test(await menu.locator('#helper-message').textContent()));
    console.log('Embedded menu actual helper state:',helperStatus,await menu.locator('#helper-message').textContent());
    await fs.writeFile(path.join(artifacts,'live-shorts-result.json'),JSON.stringify({
      url:page.url(),extensionId:id,version:JSON.parse(await fs.readFile(path.join(root,'extension','manifest.json'))).version,
      actualPreviewPlaying:true,controlsVisible:true,downloadHitTest:true,settingsOpened:true,embeddedConnectionModuleLoaded:true,embeddedHelperStatus:helperStatus,
    },null,2));
    console.log('Live Shorts passed: actual preview playback, visible controls before/after hover, hit testing, settings click and actual helper state in the embedded menu.');
  }
  await fs.writeFile(path.join(artifacts,'live-shorts-errors.json'),JSON.stringify(errors,null,2));
} finally {
  await context.close();
  if(path.dirname(path.resolve(profile))===path.resolve(os.tmpdir()) && path.basename(profile).startsWith('ytdl-live-shorts-')) await fs.rm(profile,{recursive:true,force:true});
}