/* eslint-disable no-console */
import { services } from '../../../Config/urls'
import { getServiceUrls, sendSnsMessage } from './helper'
import { ping } from './ping'
import { PingedServers } from './types'

exports.handler = async () => {
  const pingedServers: PingedServers[] = []
  try {
    const serverStatuses = await Promise.all(
      services.flatMap((service: string) => ['dev', 'stage', ''].map((env: string) => {
        const serviceName = service.replace(/_/g, '')
        const urls = getServiceUrls(serviceName, env)
        pingedServers.push({
          url: urls.httpUrl,
          name: `${serviceName} - ${!env ? 'prod' : env}`,
        })
        return ping(urls)
      })),
    )

    console.log('Pinged servers', JSON.stringify(pingedServers))

    const success: string[] = serverStatuses
      .filter((url) => url.success)
      .map((url) => url.urls.friendlyUrl)

    const fail = serverStatuses
      .filter((url) => !url.success)
      .map((url) => url.urls.friendlyUrl)

    if (fail.length || !success.length) {
      const sentSms = await sendSnsMessage(fail)
      return {
        statusCode: 400,
        body: JSON.stringify('Servers are DOWN'),
        success,
        fail,
        sentSms,
      }
    }

    return {
      statusCode: 200,
      body: JSON.stringify('Servers are OK'),
      success,
    }
  } catch (err) {
    console.log('Lambda Error: Something went wrong with pinging services! ', err)
    return {
      statusCode: 400,
      body: JSON.stringify('Servers are DOWN'),
    }
  }
}