/**
 * GET /api/instances/:id/qr
 * Get current QR code for an instance
 */
import { query } from '../../../utils/database'
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 id = getRouterParam(event, 'id')

  // Check if instance exists
  const result = await query<{ id: string; qr_code: string | null; status: string }>(
    'SELECT id, qr_code, status FROM instances WHERE id = $1',
    [id]
  )

  if (result.rows.length === 0) {
    throw createError({ statusCode: 404, message: 'Instance not found' })
  }

  // Get live QR from manager
  const qrCode = baileysManager.getQRCode(id!)
  const status = baileysManager.getStatus(id!)

  return {
    qrCode: qrCode || result.rows[0].qr_code,
    status: status?.status || result.rows[0].status
  }
})