declare const options: typeof postmark.defaults;
const message = { To: "me", From: "you" };
const templateMessage = { ...message, TemplateId: "1" };
const filter = { offset: 0 };
const editSender = { Color: "black" };
const templateValidator = {
    Subject: "123",
    HtmlBody: "123345",
    TextBody: "123535"
};

declare const error: postmark.PostmarkError;

declare function callback(err: any, data: any): undefined;

const client = new postmark.Client("124345", options);
const adminClient = new postmark.AdminClient("1123235", options);

client.send(message, callback);
client.sendEmailWithTemplate(templateMessage, callback);
client.batch([message, message], callback);
client.sendEmail(message, callback);
client.sendEmailBatch([message, message], callback);
client.getDeliveryStatistics(callback);
client.getBounces(filter, callback);
client.getBounce(1, callback);
client.getBounceDump(1, callback);
client.activateBounce(1, callback);
client.getBounceTags(callback);
client.getServer(callback);
client.editServer(editSender, callback);

 function(user, done) {
   client.sendEmail({
     "From": "[email protected]",
     "To": user.email,
     "Subject": "Your Collab-A-Comic password was reset",
     "TextBody": 'Hello,\n\n' +
     'This is a confirmation that the password for your account ' + user.email + ' has just been changed.' +
     ' \n\nCheers, \nTeam Friendship"'
   }, function(error, success) {
     if(error) {
       console.error("Unable to send via postmark: " + error.message);
       return;
     }
     res.render('index', {
       title: "Collab-a-Comic!",
       message: 'Your password was reset.'
     });
     console.info("Postmark sent email to: " + user.email);
   });
 }

// Middleware to send confirmation email
function sendConfEmail(req, res) {
  var textbody;
  if (req.body.isContributor == 1) {
    textbody = "Hi " + req.body.firstName + ", \nThanks for registering with us! You can now start viewing " +
        "and contributing to comics at http://collab-a-comic.herokuapp.com. \n\nCheers, \nTeam Friendship";
  } else {
    textbody = "Hi " + req.body.firstName + ", \nThanks for registering with us! You can now start viewing " +
        "comics at http://collab-a-comic.herokuapp.com. \n\nCheers, \nTeam Friendship";
  }
  client.sendEmail({
    "From": "[email protected]",
    "To": req.body.email,
    "Subject": "Collab-A-Comic registration",
    "TextBody": textbody
  }, function(error, success) {
    if(error) {
      console.error("Unable to send via postmark: " + error.message);
      return;
    }
    console.info("Postmark sent email to: " + req.body.email);
  });
}