/**
 * POST /api/presence/:instanceId/subscribe
 * Subscribe to presence updates for a contact
 */
import { baileysManager } from '../../../services/baileys/manager'

export default defineEventHandler(async (event) => {
  const username = getHeader(event, 'x-authentik-username')
  if (!username) {
    throw createError({ statusCode: 401, message: 'Unauthorized' })
  }

  const instanceId = getRouterParam(event, 'instanceId')
  if (!instanceId) {
    throw createError({ statusCode: 400, message: 'Missing instanceId' })
  }

  const body = await readBody<{ jid: string }>(event)
  if (!body?.jid) {
    throw createError({ statusCode: 400, message: 'Missing jid in request body' })
  }

  try {
    await baileysManager.subscribeToPresence(instanceId, body.jid)
    return { success: true, jid: body.jid }
  } catch (error: any) {
    console.error('[Presence API] Error subscribing:', error)
    throw createError({
      statusCode: 500,
      message: error.message || 'Error subscribing to presence'
    })
  }
})