import amqp from 'amqplib'
import dotenv from 'dotenv'
import sgMail from '@sendgrid/mail'

dotenv.config()
const queuePaylater = process.env.QUEUE_PAYLATER
const senderEmail = process.env.SENDER_EMAIL
const apiKey = process.env.SENDGRIP_API_KEY
sgMail.setApiKey(apiKey)

amqp.connect(process.env.AMQP_SERVER).then(async conn => {
  const ch = await conn.createChannel()
  const queuePaylaterExist = ch.assertQueue(queuePaylater, { durable: true });
  if (queuePaylaterExist) {
    queuePaylaterExist.then(() => {
      return ch.consume(queuePaylater, async (msg) => {
        var messageBody = JSON.parse(msg.content.toString())
        console.log(`[*PayLater] Message Received! email : ${messageBody.email}`)
        sendReceipt({
          email: messageBody.email,
          subject: messageBody.subject,
          content: messageBody.content,
        })
      }, { noAck: true })
    }).then(() => {
      console.log('* Waiting for messages from queue ' + queuePaylater)
    })
  }
}).catch(console.warn)

function sendReceipt(message) {
  try {
    const parsedData = JSON.parse(message.email);
    if (Array.isArray(parsedData)) {
      message.email = parsedData
    }
  } catch (error) {
    console.log("Data bukan dalam format JSON.");
  }

  const now = new Date()
  const msg = {
    to: message.email,
    from: `Amigo Group Indonesia <${senderEmail}>`,
    subject: message.subject,
    html: message.content,
  }
  sgMail
    .send(msg)
    .then((response) => {
      if (response[0].statusCode == 202) {
        console.log(`Email sent to ${message.email} at ${now}`)
      } else {
        console.error(`Failed to send email to ${message.email} at ${now}`)
      }
    })
    .catch((error) => {
      console.error(error)
    })
}