/**
 * POST /api/instances
 * Create a new instance
 */
import { query } from '../../utils/database'

interface CreateInstanceBody {
  name: string
}

interface InstanceRow {
  id: string
  name: string
  phone_number: string | null
  status: string
  created_at: Date
}

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

  const body = await readBody<CreateInstanceBody>(event)

  if (!body.name?.trim()) {
    throw createError({ statusCode: 400, message: 'Name is required' })
  }

  const result = await query<InstanceRow>(
    `INSERT INTO instances (name, created_by)
     VALUES ($1, $2)
     RETURNING id, name, phone_number, status, created_at`,
    [body.name.trim(), username]
  )

  const instance = result.rows[0]

  return {
    id: instance.id,
    name: instance.name,
    phoneNumber: instance.phone_number,
    status: instance.status,
    createdAt: instance.created_at
  }
})