/* eslint-disable no-console */

const fs = require('fs');

const path = require('path');

const Chrome = require('../src/data/Chrome');

console.log('Updating chrome versions...');

const filepath = path.join(__dirname, '../data/browsers-chrome.js');

/* OmahaProxy (the previous source for this data) has been shut down; the Chromium Dash

* release API is the maintained replacement. `num` is capped server-side at 1000, which

* is enough to cover the full Stable release history for both platforms. */

const ENDPOINT = 'https://chromiumdash.appspot.com/fetch_releases?channel=Stable&num=1000&platform=';

function compareVersions(a, b) {

const partsA = a.split('.').map(Number);

const partsB = b.split('.').map(Number);

for (let i = 0; i < Math.max(partsA.length, partsB.length); i++) {

const diff = (partsA[i] || 0) - (partsB[i] || 0);

if (diff !== 0) {

return diff;

}

}

return 0;

}

function fetchPlatform(platform, callback) {

const url = ENDPOINT + platform;

fetch(url)

.then((response) => {

if (!response.ok) {

throw new Error(`${url} responded with HTTP ${response.status}`);

}

return response.json();

})

.then((body) => {

if (!Array.isArray(body)) {

throw new Error(`${url} returned an unexpected payload`);

}

callback(body.map((release) => release.version.split('.').slice(0, 3).join('.')));

})

.catch((err) => {

console.error(`Failed to fetch ${platform} releases: ${err.message}`);

process.exitCode = 1;

callback([]);

});

}

fetchPlatform('Mac', (desktopVersions) => {

fetchPlatform('Android', (mobileVersions) => {

let countNewDesktop = 0;

desktopVersions.forEach((version) => {

if (!Chrome.DESKTOP[version]) {

Chrome.DESKTOP[version] = 'stable';

countNewDesktop++;

}

});

let countNewMobile = 0;

mobileVersions.forEach((version) => {

if (!Chrome.MOBILE[version]) {

Chrome.MOBILE[version] = 'stable';

countNewMobile++;

}

});

const fileStream = fs.createWriteStream(filepath);

fileStream.write('module.exports = {\n');

fileStream.write(' DESKTOP: {\n');

Object.keys(Chrome.DESKTOP)

.sort(compareVersions)

.forEach((version) => fileStream.write(` '${version}': '${Chrome.DESKTOP[version]}',\n`));

fileStream.write(' },\n');

fileStream.write(' MOBILE: {\n');

Object.keys(Chrome.MOBILE)

.sort(compareVersions)

.forEach((version) => fileStream.write(` '${version}': '${Chrome.MOBILE[version]}',\n`));

fileStream.write(' },\n');

fileStream.write('};\n');

fileStream.end();

console.log(`Updated chrome with ${countNewDesktop} new stable version for DEKSTOP`);

console.log(`Updated chrome with ${countNewMobile} new stable version for MOBILE`);

});

});