#!/usr/bin/env node
/**
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * 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.
 */

var vm = require('vm');
var path = require('path');
var fs = require('fs');
var Phantom = require('./Phantom');
var FileSystem = require('./FileSystem');
var System = require('./System');
var WebPage = require('./WebPage');
var WebServer = require('./WebServer');
var child_process = require('child_process');
var Browser = require('..').Browser;
var version = require('../package.json').version;
var argv = require('minimist')(process.argv.slice(2), {
    alias: { v: 'version' },
    boolean: ['headless'],
    default: {'headless': true },
});

if (argv.version) {
    console.log('Puppeteer v' + version);
    return;
}

if (argv['ssl-certificates-path']) {
    console.error('Flag --ssl-certificates-path is not supported.');
    process.exit(1);
    return;
}

var scriptArguments = argv._;
if (!scriptArguments.length) {
    console.log(__filename.split('/').pop() + ' [scriptfile]');
    return;
}

var scriptPath = path.resolve(process.cwd(), scriptArguments[0]);
if (!fs.existsSync(scriptPath)) {
    console.error(`script not found: ${scriptPath}`);
    process.exit(1);
    return;
}

var browser = new Browser({
        remoteDebuggingPort: 9229,
        headless: argv.headless,
});

var context = createPhantomContext(browser, scriptPath, argv);
var scriptContent = fs.readFileSync(scriptPath, 'utf8');
vm.runInContext(scriptContent, context);

/**
 * @param {!Browser} browser
 * @param {string} scriptPath
 * @param {!Array<string>} argv
 * @return {!Object}
 */
function createPhantomContext(browser, scriptPath, argv) {
    var context = {};
    context.setInterval = setInterval;
    context.setTimeout = setTimeout;
    context.clearInterval = clearInterval;
    context.clearTimeout = clearTimeout;

    context.phantom = Phantom.create(context, scriptPath);
    context.console = console;
    context.window = context;
    context.WebPage = options => new WebPage(browser, scriptPath, options);

    vm.createContext(context);

    var nativeExports = {
        fs: new FileSystem(),
        system: new System(argv._),
        webpage: {
            create: context.WebPage,
        },
        webserver: {
            create: () => new WebServer(),
        },
        cookiejar: {
            create: () => {},
        },
        child_process: child_process
    };
    var bootstrapPath = path.join(__dirname, '..', 'third_party', 'phantomjs', 'bootstrap.js');
    var bootstrapCode = fs.readFileSync(bootstrapPath, 'utf8');
    vm.runInContext(bootstrapCode, context, {
        filename: 'bootstrap.js'
    })(nativeExports);
    return context;
}