'use strict';

// NOTE: `amqplib` is bundled into the deployment package
// eslint-disable-next-line import/no-unresolved
const amqp = require('amqplib');

function consumer(event, context, callback) {
  const functionName = 'consumer';
  const messages = [];

  Object.keys(event.rmqMessagesByQueue).forEach((queueKey) => {
    const queue = event.rmqMessagesByQueue[queueKey];
    queue.forEach((message) => {
      messages.push(Buffer.from(message.data, 'base64').toString());
    });
  });
  // eslint-disable-next-line no-console
  console.log(functionName, JSON.stringify(messages));

  return callback(null, event);
}

async function producer() {
  const connectOptions = {
    protocol: 'amqps',
    hostname: process.env.RABBITMQ_HOST,
    port: 5671,
    username: process.env.RABBITMQ_USERNAME,
    password: process.env.RABBITMQ_PASSWORD,
  };

  const connection = await amqp.connect(connectOptions);
  const channel = await connection.createChannel();
  const queueName = process.env.QUEUE_NAME;
  await channel.assertQueue(queueName);
  await channel.sendToQueue(queueName, Buffer.from('Hello from RabbitMQ Integration test!'));

  return {
    statusCode: 200,
  };
}

module.exports = { producer, consumer };