'use strict';

const fs = require('fs');

const path = require('path');

const execFile = require('child_process').execFile;

module.exports.print = (event, context, callback) => {

console.log(event);

const body = JSON.parse(event.body);

const phantomjs = path.resolve('bin/phantomjs-linux');

const rasterize = path.resolve('lib/rasterize.js');

const outputPDF = '/tmp/output.pdf';

const url = body.url;

if (!url) {

const err = 'url parameter is undefined';

return callback(err, {

statusCode: 500,

body: JSON.stringify({ 'error': err })

});

}

execFile(phantomjs, [rasterize, url, outputPDF, "A4", 0.68], (err, stdout, stderr) => {

console.log('execute phantomjs');

if (err) {

console.log(err);

callback(err, {

statusCode: 500,

body: JSON.stringify({

'error': err

}),

});

}

const output = fs.readFileSync(outputPDF);

callback(null, {

statusCode: 200,

headers: {

'Access-Control-Allow-Origin': '*',

},

body: output.toString('base64')

});

});

// Use this code if you don't use the http event with the LAMBDA-PROXY integration

// callback(null, { message: 'Go Serverless v1.0! Your function executed successfully!', event });

};