// Browse scenario driven ENTIRELY with real mouse/keyboard input via xdotool
// (see human.mjs). Connects to a Chrome already running with
// --remote-debugging-port (default 9222) on the streamed X display.
//
// All ACTIONS are real input: address-bar navigation (Ctrl+L + typing),
// search typing, clicking the video, the settings gear -> 화질 -> 1080p menu,
// the autoplay toggle, the play button, fullscreen via the 'f' key, scrolling,
// and entering 나무위키. The CDP/DOM API is used ONLY to read state for
// verification (paused/quality/fullscreen) and as a rare click fallback when an
// element has no on-screen box.
//
// One environment workaround: on the streamed VNC desktop (xfwm4) Chrome does
// NOT hide its toolbar when a video enters HTML5 fullscreen ('f'), so the
// address bar bleeds into the broadcast. We therefore toggle the BROWSER window
// into Chrome-initiated fullscreen via CDP (Browser.setWindowBounds) around the
// 'f' step - that reliably hides the toolbar (innerHeight 1080 vs 988) - then
// restore it. This is a window-chrome action, not a page interaction.
import { chromium } from 'playwright';
import { humanClick, humanType, humanKey, humanHover, navigateOmnibox, humanScroll, sleep } from './human.mjs';

const CDP = process.env.CDP_PORT || '9222';
const VID = process.env.TEST_VIDEO_ID || 'X_am71G6Vy4';
const SEARCH = process.env.TEST_YT_QUERY || '내손을잡아';
const NAVER_Q = process.env.TEST_NAVER_QUERY || '아이유';
// MV_QUERY mode: search this query and auto-pick the first result that actually
// reports >=60fps (instead of clicking the fixed TEST_VIDEO_ID). WATCH_SECONDS
// is how long to watch windowed and fullscreen (default 20).
const MV_QUERY = process.env.MV_QUERY || '';
const WATCH_MS = parseInt(process.env.WATCH_SECONDS || '20', 10) * 1000;

// Subtitles (off-by-default, Korean-on) and YouTube ad-skipping are applied
// broadcast-wide by broadcast-helper.mjs, not here.

const b = await chromium.connectOverCDP(`http://localhost:${CDP}`);
const ctx = b.contexts()[0];
const page = ctx.pages()[0];
page.setDefaultTimeout(25000);
const read = (fn) => page.evaluate(fn);
const playerLoc = () => page.locator('#movie_player');

const fpsNow = () => read(() => {
  try { const s = document.getElementById('movie_player').getStatsForNerds(); const m = (s.resolution || '').match(/@(\d+)/); return m ? +m[1] : null; } catch { return null; }
});
async function skipAdsQuick() {
  for (let i = 0; i < 8; i++) {
    const ad = page.locator('.ytp-ad-skip-button, .ytp-ad-skip-button-modern, .ytp-skip-ad-button');
    if (await ad.count().catch(() => 0)) { await humanClick(page, ad.first()); await sleep(1200); } else break;
  }
}

// 1) open YouTube by typing the URL in the address bar
await navigateOmnibox('https://www.youtube.com'); await sleep(3000);

// 2) really type the search and submit (fixed query, or the MV query)
await humanClick(page, page.locator('input#search, input[name=search_query]').first());
await humanType(MV_QUERY || SEARCH);
await humanKey('Return');
await sleep(3800);

// open a result with the real mouse, wait for the player, skip ads, ensure playing
async function openAndPlay(link) {
  await humanClick(page, link);
  await sleep(3500);
  await page.waitForSelector('#movie_player', { timeout: 25000 }); await sleep(2000);
  await skipAdsQuick();
  if (await read(() => document.querySelector('video')?.paused)) {
    await humanClick(page, page.locator('.ytp-large-play-button, .ytp-play-button').first());
  }
  await sleep(1500);
}

// 3) pick the video: in MV mode auto-pick the first result that really reports
// >=60fps; otherwise click the fixed concert clip.
if (MV_QUERY) {
  const resultsUrl = `https://www.youtube.com/results?search_query=${encodeURIComponent(MV_QUERY)}&sp=EgQQARgD`;
  let picked = false;
  for (let i = 0; i < 5 && !picked; i++) {
    const results = page.locator('ytd-video-renderer a#video-title, ytd-rich-item-renderer a#video-title');
    if (!(await results.nth(i).count().catch(() => 0))) break;
    await openAndPlay(results.nth(i));
    const fps = await fpsNow();
    console.log(`MV candidate ${i} fps=${fps}`);
    if (fps && fps >= 60) { picked = true; break; }
    await navigateOmnibox(resultsUrl); await sleep(3000);
  }
  if (!picked) console.log('MV: no >=60fps result found, using last opened');
} else {
  let link = page.locator(`a#video-title[href*="${VID}"], a[href*="${VID}"]`).first();
  if (!(await link.count().catch(() => 0))) link = page.locator('ytd-video-renderer a#video-title, ytd-rich-item-renderer a#video-title').first();
  await openAndPlay(link);
}

// 5) set 1080p through the real settings menu (gear -> 화질 -> 1080p), verify
async function setQuality1080() {
  for (let attempt = 0; attempt < 2; attempt++) {
    await humanHover(page, playerLoc());
    await humanClick(page, page.locator('.ytp-settings-button')); await sleep(900);
    let qrow = page.locator('.ytp-menuitem', { hasText: /화질|Quality/ }).first();
    if (!(await qrow.count().catch(() => 0))) qrow = page.locator('.ytp-panel-menu .ytp-menuitem').last();
    await humanClick(page, qrow); await sleep(900);
    const item = page.locator('.ytp-menuitem', { hasText: /1080/ }).first();
    if (await item.count().catch(() => 0)) await humanClick(page, item);
    await sleep(2000);
    const q = await read(() => document.getElementById('movie_player')?.getPlaybackQuality?.());
    if (q && /1080/.test(q)) return q;
  }
  return null;
}
console.log('QUALITY', await setQuality1080());

// 6) turn off autoplay with a real click if it is on
const auto = page.locator('.ytp-autonav-toggle-button');
if ((await auto.count().catch(() => 0)) && (await auto.getAttribute('aria-checked').catch(() => null)) === 'true') {
  await humanHover(page, playerLoc());
  await humanClick(page, auto);
}
console.log('STEP watch-1080-windowed'); await sleep(WATCH_MS);

// 7) fullscreen with the real 'f' key. broadcast-helper.mjs detects the HTML5
// fullscreen and hides Chrome's toolbar (window fullscreen) broadcast-wide, so
// the address bar stays off the stream.
await humanHover(page, playerLoc());
await humanKey('f'); await sleep(1800);
if (!(await read(() => !!document.fullscreenElement))) { await humanHover(page, playerLoc()); await humanKey('f'); await sleep(1500); }
console.log('STEP fullscreen', await read(() => ({ full: !!document.fullscreenElement, h: window.innerHeight }))); await sleep(WATCH_MS);

// 8) exit video fullscreen ('f'); the helper restores the toolbar
await humanKey('f'); await sleep(1500);

// 9) Naver via the address bar, then really type the query
await navigateOmnibox('https://www.naver.com'); await sleep(2800);
await humanClick(page, page.locator('input#query').first());
await humanType(NAVER_Q);
await humanKey('Return');
await sleep(2800);
await humanScroll(page, +1, 18);
console.log('STEP naver-scrolled');

// 10) enter 나무위키 with a real click, then scroll
const namu = page.locator('a[href*="namu.wiki"]').first();
if (await namu.count().catch(() => 0)) {
  await humanClick(page, namu);
  await sleep(3000);
  await humanScroll(page, +1, 14);
  await humanScroll(page, -1, 8);
  await humanScroll(page, +1, 10);
  console.log('STEP namu-scrolled');
} else console.log('STEP namu-not-found');

console.log('SCENARIO_DONE');
await b.close();