// MediaMTX control API, proxied by Caddy at /api (-> 127.0.0.1:9997). Returns active streams.
export async function fetchStreams() {
  const r = await fetch('/api/v3/paths/list?itemsPerPage=200', { credentials: 'same-origin' })
  if (!r.ok) throw new Error(`api ${r.status}`)
  const data = await r.json()
  return (data.items || [])
    .filter(p => p.ready && (p.tracks || []).length > 0)
    .map(p => {
      const [user, ...rest] = p.name.split('/')
      return {
        id: p.name,                                  // e.g. techy/VanguardTraining
        user,
        title: rest.join('/') || p.name,
        viewers: (p.readers || []).length,
        since: p.readyTime,
        tracks: p.tracks || [],
      }
    })
    .sort((a, b) => (a.since || '').localeCompare(b.since || ''))
}

export const whepUrl = id => `/webrtc/${id}/whep`
export const hlsUrl  = id => `/hls/${id}/index.m3u8`