import { requireAuth } from '../../../utils/authHelpers.js'
import { getLiveSession, updateLiveSession } from '../../../utils/liveSessions.js'
import { getTransport, producers } from '../../../utils/mediasoup.js'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)
  const body = await readBody(event).catch(() => ({}))
  const { sessionId, transportId, kind, rtpParameters } = body

  if (!sessionId || !transportId || !kind || !rtpParameters) {
    throw createError({ statusCode: 400, message: 'sessionId, transportId, kind, and rtpParameters required' })
  }

  const session = getLiveSession(sessionId)
  if (!session) {
    throw createError({ statusCode: 404, message: 'Session not found' })
  }
  if (session.userId !== user.id) {
    throw createError({ statusCode: 403, message: 'Forbidden' })
  }

  const transport = getTransport(transportId)
  if (!transport) {
    throw createError({ statusCode: 404, message: 'Transport not found' })
  }

  const producer = await transport.produce({ kind, rtpParameters })
  producers.set(producer.id, producer)
  producer.on('close', () => {
    producers.delete(producer.id)
    const s = getLiveSession(sessionId)
    if (s && s.producerId === producer.id) {
      updateLiveSession(sessionId, { producerId: null })
    }
  })

  updateLiveSession(sessionId, { producerId: producer.id })

  return {
    id: producer.id,
    kind: producer.kind,
  }
})