/**
 * GET /api/chat/search?q=<term>
 * Searches the caller's own 1:1 conversations (LIKE on message body) and returns
 * the newest matches first, each annotated with `peer` (the other party) so the
 * drawer can open that conversation. Gated to staff — see gateFromEvent.
 */

import { gateFromEvent } from '../../utils/chatAccess'
import { searchMessages } from '../../utils/chatDb'

export default defineEventHandler(async (event) => {
  const config = useRuntimeConfig()
  if (config.chatEnabled !== true) {
    setResponseStatus(event, 404)
    return { error: 'chat disabled' }
  }

  let userId: number
  try {
    ({ userId } = await gateFromEvent(event))
  } catch (err: any) {
    setResponseStatus(event, err?.statusCode || 403)
    return { error: 'forbidden' }
  }

  const q = (getQuery(event).q ?? '').toString().trim()
  if (q.length < 2) return { records: [] } // too short → no scan

  return { records: searchMessages(userId, q, 30) }
})