lukasz-madon/hack.js

## hack.js
"use latest";

let MongoClient = require('mongodb').MongoClient;

const questions = `
<html>
<head>
  <title>Euler problems</title>
</head>
<body>
  <h1>Euler Project</h1>
  <p>
  Hi <%= email %>!<br>
  Pick one of the following problems and send the solution using query string.<br>
  https://webtask.it.auth0.com/api/run/wt-lukasz_madon-gmail_com-0/hack?webtask_no_cache=1&question=1&answer=x&email=xxx@xxx.com
  </p>
  <h1><%= msg %></h1>
  <img src="<%= img %>" />
  <h2>Project Euler Problem #1</h2>
  <p>
    If we list all the natural numbers below 10 that are multiples of 3 or 5,
    we get 3, 5, 6 and 9. The sum of these multiples is 23.

    Find the sum of all the multiples of 3 or 5 below 1000.
  </p>
  <h2>Project Euler Problem #2</h2>
  <p>
  Each new term in the Fibonacci sequence is generated by adding the
  previous two terms. By starting with 1 and 2, the first 10 terms will be:

                    1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

  Find the sum of all the even-valued terms in the sequence which do not
  exceed four million.
  </p>
</body>
</html>
`
const images = [
  'http://img-comment-lol.9cache.com/media/1a79ac3c141682746595291692_700wa_0.gif',
  'http://img-comment-fun.9cache.com/media/aw0npW4/aqzD3EVL_700wa_0.gif'
];

// 1st
// curr_sum = 0
// for num in xrange(1000):
// 	if num % 5 == 0 and num % 3 == 0:
// 		curr_sum += num
// 	elif num % 5 == 0:
// 		curr_sum += num
// 	elif num % 3 == 0:
// 		curr_sum += num
//
// print curr_sum

// 2nd
// s = 0
// f1,f2 = 1,2
// while f1 < 4000000:
// 	if f1 % 2 == 0:
// 		s += f1
// 	f1, f2 = f2, f1 + f2
//
// print s

const sendEvent = (url, email, question, success) => {
  MongoClient.connect(url, (err, db) => {
    if(err) return console.log(err);
    db.collection('webtask').
    insertOne({ email: email, question: question, success: success }, function (err, result) {
      if(err) return console.log(err);

    });
  });
};

module.exports = (ctx, req, res) => {
  const { email, question, answer, MONGO_URL} = ctx.data;
  let msg = '';
  let img = '';
  //TODO(lukaszma) add proper validation
  if(email && question && answer) {
    if(question === '1' && answer === '233168') {
      msg = 'Correct answer to the first question!';
      img = 'http://i772.photobucket.com/albums/yy8/iRikiPWNurFace/Misc/00-great-success.gif';
      sendEvent(MONGO_URL, email, question, true);
    } else if(question === '2' && answer === '4613732') {
      msg = 'Correct answer to the second question!';
      img = 'http://rs1220.pbsrc.com/albums/dd448/HannahLynnLove/GIF%20Photos/Success.gif~c200';
      sendEvent(MONGO_URL, email, question, true);
    } else {
      msg = 'Wrong answer or question';
      img = images[Math.floor(Math.random() * images.length)];
      sendEvent(MONGO_URL, email, question, false);
    }
  }
  res.writeHead(200, { 'Content-Type': 'text/html' });
  res.end(require('ejs').render(questions, {
      email: ctx.data.email || '',
      msg: msg,
      img: img
  }));
}
	"use latest";

	let MongoClient = require('mongodb').MongoClient;

	const questions = `
	<html>
	<head>
	<title>Euler problems</title>
	</head>
	<body>
	<h1>Euler Project</h1>
	<p>
	Hi <%= email %>!<br>
	Pick one of the following problems and send the solution using query string.<br>
	https://webtask.it.auth0.com/api/run/wt-lukasz_madon-gmail_com-0/hack?webtask_no_cache=1&question=1&answer=x&email=xxx@xxx.com
	</p>
	<h1><%= msg %></h1>
	<img src="<%= img %>" />
	<h2>Project Euler Problem #1</h2>
	<p>
	If we list all the natural numbers below 10 that are multiples of 3 or 5,
	we get 3, 5, 6 and 9. The sum of these multiples is 23.

	Find the sum of all the multiples of 3 or 5 below 1000.
	</p>
	<h2>Project Euler Problem #2</h2>
	<p>
	Each new term in the Fibonacci sequence is generated by adding the
	previous two terms. By starting with 1 and 2, the first 10 terms will be:

	1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

	Find the sum of all the even-valued terms in the sequence which do not
	exceed four million.
	</p>
	</body>
	</html>
	`
	const images = [
	'http://img-comment-lol.9cache.com/media/1a79ac3c141682746595291692_700wa_0.gif',
	'http://img-comment-fun.9cache.com/media/aw0npW4/aqzD3EVL_700wa_0.gif'
	];

	// 1st
	// curr_sum = 0
	// for num in xrange(1000):
	// if num % 5 == 0 and num % 3 == 0:
	// curr_sum += num
	// elif num % 5 == 0:
	// curr_sum += num
	// elif num % 3 == 0:
	// curr_sum += num
	//
	// print curr_sum

	// 2nd
	// s = 0
	// f1,f2 = 1,2
	// while f1 < 4000000:
	// if f1 % 2 == 0:
	// s += f1
	// f1, f2 = f2, f1 + f2
	//
	// print s

	const sendEvent = (url, email, question, success) => {
	MongoClient.connect(url, (err, db) => {
	if(err) return console.log(err);
	db.collection('webtask').
	insertOne({ email: email, question: question, success: success }, function (err, result) {
	if(err) return console.log(err);

	});
	});
	};

	module.exports = (ctx, req, res) => {
	const { email, question, answer, MONGO_URL} = ctx.data;
	let msg = '';
	let img = '';
	//TODO(lukaszma) add proper validation
	if(email && question && answer) {
	if(question === '1' && answer === '233168') {
	msg = 'Correct answer to the first question!';
	img = 'http://i772.photobucket.com/albums/yy8/iRikiPWNurFace/Misc/00-great-success.gif';
	sendEvent(MONGO_URL, email, question, true);
	} else if(question === '2' && answer === '4613732') {
	msg = 'Correct answer to the second question!';
	img = 'http://rs1220.pbsrc.com/albums/dd448/HannahLynnLove/GIF%20Photos/Success.gif~c200';
	sendEvent(MONGO_URL, email, question, true);
	} else {
	msg = 'Wrong answer or question';
	img = images[Math.floor(Math.random() * images.length)];
	sendEvent(MONGO_URL, email, question, false);
	}
	}
	res.writeHead(200, { 'Content-Type': 'text/html' });
	res.end(require('ejs').render(questions, {
	email: ctx.data.email \|\| '',
	msg: msg,
	img: img
	}));
	}