// import as ES Module
import { MailTime, MongoQueue, RedisQueue } from 'mail-time';

// require as CommonJS
const { MailTime, MongoQueue, RedisQueue } = require('mail-time');

// transports.js
import nodemailer from 'nodemailer';
// Use DIRECT transport
// and enable sending email from localhost
// install "nodemailer-direct-transport" NPM package:
import directTransport from 'nodemailer-direct-transport';

const transports = [];
const directTransportOpts = {
  pool: false,
  direct: true,
  name: 'mail.example.com',
  from: '[email protected]',
};
transports.push(nodemailer.createTransport(directTransport(directTransportOpts)));
// IMPORTANT: Add `.options` to a newly created transport,
// this is necessary to make sure options are available to MailTime package:
transports[0].options = directTransportOpts;

// Private SMTP
transports.push(nodemailer.createTransport({
  host: 'smtp.example.com',
  from: '[email protected]',
  auth: {
    user: 'no-reply',
    pass: 'xxx'
  },
}));

// Google Apps SMTP
transports.push(nodemailer.createTransport({
  host: 'smtp.gmail.com',
  from: '[email protected]',
  auth: {
    user: '[email protected]',
    pass: 'xxx'
  },
}));

// Mailing service (SparkPost as example)
transports.push(nodemailer.createTransport({
  host: 'smtp.sparkpostmail.com',
  port: 587,
  from: '[email protected]',
  auth: {
    user: 'SMTP_Injection',
    pass: 'xxx'
  },
}));

export { transports };

// mail-queue.js
import { MailTime, RedisQueue } from 'mail-time';
import { createClient } from 'redis';
import { transports } from './transports.js';

// Use REDIS_URL environment variable to store connection string to MongoDB
// example: "REDIS_URL=redis://127.0.0.1:6379/myapp node mail-micro-service.js"
const redisClient = await createClient({ url: process.env.REDIS_URL }).connect();
const mailQueue = new MailTime({
  transports,
  queue: new MongoQueue({
    client: redisClient,
  }),
  josk: {
    adapter: {
      type: 'redis',
      client: redisClient,
    }
  },
  template: MailTime.Template // Use default template
  from(transport) {
    // To pass spam-filters `from` field should be correctly set
    // for each transport, check `transport` object for more options
    return `"Awesome App" <${transport.options.from}>`;
  },
  onError(error, email, details) {
    console.log(`Email "${email.mailOptions.subject}" wasn't sent to ${email.mailOptions.to}`, error, details);
  },
  onSent(email, details) {
    console.log(`Email "${email.mailOptions.subject}" successfully sent to ${email.mailOptions.to}`, details);
  },
});

export { mailQueue };

// mail-queue.js
import { MailTime, MongoQueue } from 'mail-time';
import { MongoClient } from 'mongodb';
import { transports } from './transports.js';

// Use MONGO_URL environment variable to store connection string to MongoDB
// example: "MONGO_URL=mongodb://127.0.0.1:27017/myapp node mail-micro-service.js"
const mongodb = (await MongoClient.connect(process.env.MONGO_URL)).db('database');
const mailQueue = new MailTime({
  transports,
  queue: new MongoQueue({
    db: mongodb,
  }),
  josk: {
    adapter: {
      type: 'mongo',
      db: mongodb,
    }
  },
  template: MailTime.Template // Use default template
  from(transport) {
    // To pass spam-filters `from` field should be correctly set
    // for each transport, check `transport` object for more options
    return `"Awesome App" <${transport.options.from}>`;
  },
  onError(error, email, details) {
    console.log(`Email "${email.mailOptions.subject}" wasn't sent to ${email.mailOptions.to}`, error, details);
  },
  onSent(email, details) {
    console.log(`Email "${email.mailOptions.subject}" successfully sent to ${email.mailOptions.to}`, details);
  },
});

export { mailQueue };

// mail-queue.js
import { MailTime, RedisQueue } from 'mail-time';
import { createClient } from 'redis';

const mailQueue = new MailTime({
  type: 'client',
  queue: new RedisQueue({
    client: await createClient({ url: 'redis://url' }).connect()
  }),
});

export { mailQueue };

import { mailQueue } from './mail-queue.js';

await mailQueue.sendMail({
  to: '[email protected]',
  subject: 'You\'ve got an email!',
  text: 'Plain text message',
  html: '<h1>HTML</h1><p>Styled message</p>'
});

import { MailTime, MongoQueue } from 'mail-time';
import { MongoClient } from 'mongodb';
import { transports } from './transports.js';

const db = (await MongoClient.connect('mongodb://url')).db('database');
const mailQueue = new MailTime({
  queue: new MongoQueue({
    db: db,
  }),
  josk: {
    adapter: {
      type: 'mongo',
      db: db,
    }
  },
  transports,
  from(transport) {
    // To pass spam-filters `from` field should be correctly set
    // for each transport, check `transport` object for more options
    return `"Awesome App" <${transport.options.from}>`;
  }
});

import { MailTime, MongoQueue } from 'mail-time';
import { MongoClient } from 'mongodb';
import { createClient } from 'redis';
import { transports } from './transports.js';

const mailQueue = new MailTime({
  queue: new MongoQueue({
    db: (await MongoClient.connect('mongodb://url')).db('database'),
  }),
  josk: {
    adapter: {
      type: 'redis',
      client: await createClient({ url: 'redis://url' }).connect(),
    }
  },
  transports,
  from(transport) {
    return `"Awesome App" <${transport.options.from}>`;
  }
});

import { MailTime, RedisQueue } from 'mail-time';
import { MongoClient } from 'mongodb';
import { createClient } from 'redis';
import { transports } from './transports.js';

const mailQueue = new MailTime({
  queue: new RedisQueue({
    client: await createClient({ url: 'redis://url' }).connect(),
  }),
  josk: {
    adapter: {
      type: 'mongo',
      db: (await MongoClient.connect('mongodb://url')).db('database'),
    }
  },
  transports,
  from(transport) {
    return `"Awesome App" <${transport.options.from}>`;
  }
});

import { MailTime, RedisQueue } from 'mail-time';
import { MongoClient } from 'mongodb';
import { createClient } from 'redis';
import { transports } from './transports.js';

const redisClient = await createClient({ url: 'redis://url' }).connect();
const mailQueue = new MailTime({
  queue: new RedisQueue({
    client: redisClient,
  }),
  josk: {
    adapter: {
      type: 'redis',
      client: redisClient,
    }
  },
  transports,
  from(transport) {
    return `"Awesome App" <${transport.options.from}>`;
  }
});

import { MailTime, RedisQueue } from 'mail-time';
import { createClient } from 'redis';
import { transports } from './transports.js';
const redisClient = await createClient({ url: 'redis://url' }).connect();

// CREATE mailQueue FOR NON-URGENT EMAILS WHICH IS OKAY TO CONCATENATE
const mailQueue = new MailTime({
  queue: new RedisQueue({
    client: redisClient,
  }),
  transports,
  strategy: 'backup',
  failsToNext: 1,
  concatEmails: true,
  josk: {
    adapter: {
      type: 'redis',
      client: redisClient
    },
    zombieTime: 120000
  }
});

// CREATE mailInstantQueue FOR TRANSACTIONAL EMAILS AND ALERTS
const mailInstantQueue = new MailTime({
  queue: new RedisQueue({
    client: redisClient,
    prefix: 'instant'
  }),
  transports,
  prefix: 'instant',
  retryDelay: 2000,
  strategy: 'backup',
  failsToNext: 1,
  concatEmails: false,
  josk: {
    adapter: {
      type: 'redis',
      client: redisClient
    },
    zombieTime: 20000
  }
});

await mailQueue.sendMail({
  to: '[email protected]',
  subject: 'You\'ve got an email!',
  text: 'Plain text message',
  html: '<h1>HTML</h1><p>Styled message</p>'
});

await mailInstantQueue.sendMail({
  to: '[email protected]',
  subject: 'Sign in request',
  text: 'Your OTP login code: xxxx:',
  html: '<h1>Code:</h1><code>XXXX</code>'
});

const templates = {
  global: '<html xmlns="http://www.w3.org/1999/xhtml"><head><title>{{subject}}</title></head><body>{{{html}}}<footer>Message sent to @{{username}} user ({{to}})</footer></body></html>',
  signInCode: {
    text: 'Hello @{{username}}! Here\'s your login code: {{code}}',
    html: `<h1>Sign-in request</h1><p>Hello @{{username}}! <p>Copy your login code below:</p> <pre><code>{{code}}</code></pre>`
  }
};

const mailQueue = new MailTime({
  queue: new RedisQueue({ /* ... */ }),
  template: templates.global
});

await mailQueue.sendMail({
  to: '[email protected]',
  subject: 'Sign-in request',
  username: 'johndoe',
  code: 'XXXXX-YY',
  text: templates.signInCode.text,
  html: templates.signInCode.html
});

import { MailTime, MongoQueue, RedisQueue } from 'mail-time';
import nodemailer from 'nodemailer';
import { createClient } from 'redis';

const redisClient = await createClient({ url: 'redis://url' }).connect();

const mailQueue = new MailTime({
  type: 'server',
  strategy: 'backup',
  prefix: 'appMailQueue',
  transports: [nodemailer.createTransport({/* ... */})],
  failsToNext: 4,
  retries: 60,
  retryDelay: 60000,
  keepHistory: false,
  concatEmails: false,
  concatDelay: 60000,
  concatDelimiter: '<hr>',
  concatSubject: 'Multiple notifications',
  revolvingInterval: 256,
  template: '{{{html}}}',
  queue: new RedisQueue({
    client: redisClient,
    prefix: 'appMailQueue',
  }),
  josk: {
    adapter: {
      type: 'redis',
      client: redisClient,
    }
  },
  from(transport) {
    // To pass spam-filters `from` field should be correctly set
    // for each transport, check `transport` object for more options
    return `"App Name" <${transport.options.from}>`;
  },
  onError(error, email, details) {
    console.log(`Email "${email.mailOptions.subject}" wasn't sent to ${email.mailOptions.to}`, error, details);
  },
  onSent(email, details) {
    console.log(`Email "${email.mailOptions.subject}" successfully sent to ${email.mailOptions.to}`, details);
  },
});

await mailQueue.sendMail({
  to: '[email protected]',
  subject: 'Email subject',
  text: 'You have got email!',
  html: '<p>You have got email!</p>',
});

import { MailTime, RedisQueue } from 'mail-time';
import { createClient } from 'redis';

new RedisQueue({
  client: await createClient({ url: 'redis://url' }).connect(),
  prefix: 'appMailQueue',
});

import { MailTime, MongoQueue } from 'mail-time';
import { MongoClient } from 'mongodb';

new MongoQueue({
  db: (await MongoClient.connect('mongodb://url')).db('database'),
  prefix: 'appMailQueue',
});

import { mailQueue } from './mail-queue.js';

const uuid = await mailQueue.sendMail({
  to: '[email protected]',
  subject: 'Email subject',
  text: 'You have got email!',
  html: '<p>You have got email!</p>',
});

await mailQueue.cancelMail(uuid);

const mailQueue = new MailTime({ /* ... */ });

const pingResult = await mailQueue.ping();
console.log(pingResult)
/**
In case of the successful response
{
  status: 'OK',
  code: 200,
  statusCode: 200,
}

Failed response
{
  status: 'Error reason',
  code: 500,
  statusCode: 500,
  error: ErrorObject
}
*/

import { MailTime, MongoQueue, RedisQueue } from 'mail-time';

// Make it default
const mailQueue = new MailTime({
  /* .. */
  template: MailTime.Template
});

// For single letter
mailQueue.sendMail({
  /* .. */
  template: MailTime.Template
});

mailQueue.sendMail({
  to: '[email protected]',
  userName: 'Mike',
  subject: 'Sign up confirmation',
  text: 'Hello {{userName}}, \r\n Thank you for registration \r\n Your login: {{to}}',
  html: '<div style="text-align: center"><h1>Hello {{userName}}</h1><p><ul><li>Thank you for registration</li><li>Your login: {{to}}</li></ul></p></div>',
  template: '<body>{{{html}}}</body>'
});