// Debug helper: post a JWT token to BroadcastPanel and wait for StudioPortal to react
// Usage: E2E_TOKEN=... node debug-post-token.js

const puppeteer = require('puppeteer')
const fs = require('fs')
const path = require('path')
require('dotenv').config()

const BROWSERLESS_WS = process.env.BROWSERLESS_WS || process.env.BROWSERLESS || ''
const CHROME_PATH = process.env.CHROME_PATH || '/usr/bin/chromium'
const BROADCAST_URL = process.env.VITE_BROADCASTPANEL_URL || 'https://avanzacast-broadcastpanel.bfzqqk.easypanel.host'
let TOKEN = process.env.E2E_TOKEN || process.env.TOKEN || ''
const OUT = process.cwd()
const TOKEN_SERVER = (process.env.VITE_TOKEN_SERVER_URL || process.env.TOKEN_SERVER_URL || '').replace(/\/$/, '')

async function fetchTokenFromServer(room = 'e2e-room', username = 'cli-run') {
  if (!TOKEN_SERVER) return null
  try {
    console.info('Requesting token from token server:', TOKEN_SERVER)
    const res = await fetch(`${TOKEN_SERVER}/api/session`, {
      method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ room, username })
    })
    const text = await res.text()
    let json = null
    try { json = JSON.parse(text) } catch (e) { console.warn('Token server returned non-json:', text) }
    if (!res.ok) {
      console.warn('Token server returned', res.status, text)
      return null
    }
    if (json) {
      if (json.token) return json.token
      if (json.redirectUrl) {
        try {
          const u = new URL(json.redirectUrl)
          const t = u.searchParams.get('token')
          if (t) return t
        } catch (e) {}
      }
      if (json.id) {
        // try GET /api/session/:id
        try {
          const r2 = await fetch(`${TOKEN_SERVER}/api/session/${encodeURIComponent(json.id)}`)
          if (r2.ok) {
            const j2 = await r2.json()
            if (j2.token) return j2.token
          }
        } catch (e) {}
      }
    }
    return null
  } catch (e) {
    console.warn('Failed to fetch token from server', e && e.message ? e.message : e)
    return null
  }
}

async function getBrowser() {
  if (BROWSERLESS_WS) {
    try {
      console.info('Connecting to browserless:', BROWSERLESS_WS)
      return await puppeteer.connect({ browserWSEndpoint: BROWSERLESS_WS, defaultViewport: { width: 1280, height: 800 } })
    } catch (e) {
      console.warn('browserless connect failed', e && e.message)
    }
  }
  console.info('Launching local Chromium at', CHROME_PATH)
  return await puppeteer.launch({ executablePath: CHROME_PATH, headless: 'new', args: ['--no-sandbox','--disable-setuid-sandbox','--disable-dev-shm-usage'], defaultViewport: { width: 1280, height: 800 } })
}

async function run() {
  // if no token, try to fetch one from token server automatically
  if (!TOKEN) {
    console.log('No E2E token provided, attempting to fetch from token server...')
    const fetched = await fetchTokenFromServer()
    if (fetched) {
      TOKEN = fetched
      console.log('Fetched token length=', String(TOKEN).length)
    } else {
      console.error('No token provided and token server fetch failed. Set E2E_TOKEN env var or configure VITE_TOKEN_SERVER_URL')
      process.exit(2)
    }
  }

  if (!TOKEN) {
    console.error('No token provided. Set E2E_TOKEN env var.')
    process.exit(2)
  }
  const browser = await getBrowser()
  const page = await browser.newPage()
  try {
    page.on('console', msg => console.log('[page]', msg.type(), msg.text()))
    page.on('pageerror', err => console.error('[pageerr]', err && err.stack ? err.stack : err))

    console.log('Navigating to', BROADCAST_URL)
    await page.goto(BROADCAST_URL, { waitUntil: 'networkidle2', timeout: 60000 })
    await page.waitForTimeout(1000)

    // clear local state that may contain old tokens
    await page.evaluate(() => {
      try { localStorage.removeItem('lk-user-choices') } catch(e) {}
      try { sessionStorage.clear() } catch(e) {}
    })

    const shotBefore = path.join(OUT, 'debug-before.png')
    await page.screenshot({ path: shotBefore, fullPage: true })
    console.log('Saved screenshot', shotBefore)

    const payload = { type: 'LIVEKIT_TOKEN', token: TOKEN, url: process.env.VITE_LIVEKIT_WS_URL || '', room: 'e2e-room' }
    console.log('Posting token to page... token length=', String(TOKEN).length)

    // Attempt to post into iframe if present, else to window
    await page.evaluate((payload) => {
      try {
        const iframe = document.querySelector('iframe#studio-portal')
        if (iframe && iframe.contentWindow) {
          iframe.contentWindow.postMessage(payload, '*')
          window.__e2e_posted = 'iframe'
        } else {
          window.postMessage(payload, '*')
          window.__e2e_posted = 'self'
        }
      } catch (e) {
        try { window.postMessage(payload, '*'); window.__e2e_posted = 'self' } catch(_) { window.__e2e_posted = 'failed' }
      }
    }, payload)

    // Wait for StudioPortal to show token received or show error/connected
    const start = Date.now()
    const timeout = 25000
    let state = { status: 'unknown' }
    while (Date.now() - start < timeout) {
      const r = await page.evaluate(() => {
        const out = { tokenFlag: !!(window as any).__e2e_posted, tokenTarget: (window as any).__e2e_posted || null }
        try {
          const tokenNotice = Array.from(document.querySelectorAll('div, span'))
            .map(n => (n.textContent||'').toLowerCase())
            .find(t => t.includes('token recibido') || t.includes('esperando token') || t.includes('token'))
          if (tokenNotice) out.tokenNotice = tokenNotice
        } catch(e) {}
        // detect studio connected element (common selectors)
        const connected = !!document.querySelector('.studio-status[data-status="connected"]')
        if (connected) out.connected = true
        // detect error modal
        const err = document.querySelector('.studio-error-modal')
        if (err) out.error = (err.textContent||'').trim()
        return out
      })
      if (r.connected) { state = { status: 'connected', detail: r }; break }
      if (r.error) { state = { status: 'error', detail: r }; break }
      if (r.tokenFlag) state = { status: 'posted', detail: r }
      await page.waitForTimeout(600)
    }

    const shotAfter = path.join(OUT, 'debug-after.png')
    await page.screenshot({ path: shotAfter, fullPage: true })
    console.log('Saved screenshot', shotAfter)

    const outPath = path.join(OUT, 'debug-post-result.json')
    await fs.promises.writeFile(outPath, JSON.stringify({ state, timestamp: Date.now() }, null, 2), 'utf8')
    console.log('Wrote result to', outPath)
    console.log('STATE:', JSON.stringify(state, null, 2))

    await browser.close()
    return state
  } catch (err) {
    console.error('Runner error', err && err.stack ? err.stack : err)
    try { await browser.close() } catch(e) {}
    process.exit(3)
  }
}

run().catch(e=>{ console.error(e); process.exit(5) })