#!/usr/bin/env node

/**

* Copyright 2017, Google, Inc.

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

'use strict';

const fs = require(`fs`);

const path = require(`path`);

const PROJECT_ROOT = path.join(__dirname, `..`);

// Dedupe package.json dependencies

// WARNING: This will fail if two different versions of the same package are required.

const pkgSet = {};

function getDeps (directory) {

// Get subdirectories with a `package.json` file

const directories = fs.readdirSync(directory)

.filter((dir) => fs.existsSync(path.join(directory, dir, `package.json`)));

let pkgJson;

directories.forEach((dir) => {

pkgJson = JSON.parse(fs.readFileSync(path.join(directory, dir, `package.json`)));

Object.assign(pkgSet, pkgJson.dependencies);

});

}

getDeps(PROJECT_ROOT);

getDeps(path.join(PROJECT_ROOT, 'endpoints/getting-started'));

getDeps(path.join(PROJECT_ROOT, 'functions'));

getDeps(path.join(PROJECT_ROOT, 'language/slackbot'));

console.log(JSON.stringify(pkgSet, null, 2));

// Update root-level package.json (by shelling to npm)

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

const args = [`add`, `-D`].concat(Object.keys(pkgSet).map(pkg => `${pkg}@${pkgSet[pkg]}`));

console.log(`yarn ${args.join(' ')}`);

spawn(`yarn`, args, {

cwd: PROJECT_ROOT

});