/** 与 electron youtubeConfigUtils 对齐（远程控制仅用于展示/解析） */

export function parseYoutubeStreamKeySuffix(iniContent: string): string {
  for (const line of iniContent.split(/\r?\n/)) {
    const t = line.trim()
    if (t.startsWith('#') || !t) continue
    const m = t.match(/^(?:key|stream_key)\s*=\s*(.+)$/i)
    if (m) {
      const v = m[1].trim().split(/[#;]/)[0].trim()
      if (v && !v.startsWith('rtmp')) return v.length > 8 ? v.slice(-8) : v
      if (v.includes('live2/')) {
        const parts = v.split('/')
        const last = parts[parts.length - 1] || ''
        return last.length > 8 ? last.slice(-8) : last
      }
    }
  }
  return ''
}

export function extractDouyinLiveUrls(urlIni: string): string[] {
  const out: string[] = []
  for (const line of urlIni.split(/\r?\n/)) {
    const t = line.trim()
    if (!t || t.startsWith('#')) continue
    if (!/douyin\.com|v\.douyin\.com/i.test(t)) continue
    const full = t.match(/(https?:\/\/live\.douyin\.com\/[a-zA-Z0-9_-]+)/i)
    if (full) {
      out.push(full[1].replace(/^http:\/\//i, 'https://'))
      continue
    }
    const rel = t.match(/live\.douyin\.com\/([a-zA-Z0-9_-]+)/i)
    if (rel) {
      out.push(`https://live.douyin.com/${rel[1]}`)
      continue
    }
    const n = t.match(/(\d{8,})/)
    if (n) out.push(`https://live.douyin.com/${n[1]}`)
  }
  return [...new Set(out)].slice(0, 16)
}

export function extractDouyinRoomHints(urlIni: string): string[] {
  const out: string[] = []
  for (const line of urlIni.split(/\r?\n/)) {
    const t = line.trim()
    if (!t || t.startsWith('#')) continue
    if (!/douyin\.com|v\.douyin\.com/i.test(t)) continue
    const m = t.match(/live\.douyin\.com\/([a-zA-Z0-9_-]+)/i)
    if (m) {
      out.push(m[1])
      continue
    }
    const n = t.match(/(\d{8,})/)
    out.push(n ? n[1] : t.slice(0, 96))
  }
  return [...new Set(out)].slice(0, 12)
}

export function douyinRoomAndHref(douyinUrl: string | undefined, urlIni: string): { room: string; href: string } {
  const combined = `${urlIni}\n${douyinUrl ?? ''}`
  const urls = extractDouyinLiveUrls(combined)
  const hints = extractDouyinRoomHints(combined)
  const room = hints[0] || '—'
  const href = urls[0] || (hints[0] ? `https://live.douyin.com/${hints[0]}` : '')
  return { room, href }
}

export function proChannelPm2Process(channelId: string): string {
  return `youtube2__${channelId}`
}