'use strict'

const awsRequest = require('@serverless/test/aws-request')
const IotService = require('aws-sdk').Iot
const IotDataService = require('aws-sdk').IotData

async function resolveIotEndpoint() {
  return awsRequest(IotService, 'describeEndpoint', {
    endpointType: 'iot:Data-ATS',
  }).then((data) => {
    return data.endpointAddress
  })
}

async function publishIotData(topic, message) {
  return resolveIotEndpoint().then((endpoint) => {
    const params = {
      topic,
      payload: Buffer.from(message),
    }

    return awsRequest(
      { client: IotDataService, params: { endpoint } },
      'publish',
      params,
    )
  })
}

module.exports = {
  resolveIotEndpoint,
  publishIotData,
}