const webpack = require('webpack');
const path = require('path');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const getRules = require('./webpack-common.loader');
const { version } = require('./package.json');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
// const HtmlWebpackPlugin = require('html-webpack-plugin');

const resolve = dir => path.resolve(__dirname, dir);
const devServer = {
    clientLogLevel: 'info',
    disableHostCheck: true,
    port: '2015',
    host: '0.0.0.0',
    hot: false,
    contentBase: [
        path.join(__dirname, './src'),
        path.join(__dirname, './coverage')
    ],
    compress: true,
    overlay: {
        warnings: false,
        errors: true
    }
};

console.info('[GridManager] Demo is running at: http://localhost:2015/demo/index.html');
console.info('[GridManager React] Demo is running at: http://localhost:2015/framework/react/demo/index.html');
console.info('[GridManager Vue 2] Demo is running at: http://localhost:2015/framework/vue/demo/index.html');
console.info('[GridManager angular-1.x] Demo is running at: http://localhost:2015/framework/angular-1.x/demo/index.html');
console.info('[GridManager] Coverage is running at: http://localhost:2015/chart');
const config = {
    mode: 'development',
	// map

    devtool: 'eval-cheap-source-map',

    devServer,

    // 入口文件配置
	context: path.join(__dirname, 'src/'),

	// 入口文件配置
	entry: {
		index: './module/index.js',
		'angular-1.x': './framework/angular-1.x/demo/index.js',
		'react': './framework/react/demo/index.js',
		'vue2': './framework/vue/demo/index.js' // 目前将vue2定为默认的版本，后续增加vue3后需要更名为gm-vue2
	},
	// externals: {
	// 	'angular': 'angular',
	// 	'react': 'React',
	// 	'react-dom': 'ReactDOM',
	// 	'vue': {
	// 		root: 'Vue',
	// 		commonjs: 'vue',
	// 		commonjs2: 'vue',
	// 		amd: 'vue'
	// 	}
	// },
	// 配置模块如何解析
	resolve: {
		extensions: ['.js', '.ts'], // 当requrie的模块找不到时,添加这些后缀
        alias: {
			'vue$': 'vue/dist/vue.esm.js',
            '@common': resolve('src/common'),
            '@jTool': resolve('src/jTool'),
            '@module': resolve('src/module')
        }
	},

	// 文件导出的配置
	output: {
		path: '/',
		filename: '[name].js',
		// publicPath 对于热替换（HMR）是必须的，让webpack知道在哪里载入热更新的模块（chunk）
		publicPath: '/'
	},

	// 以插件形式定制webpack构建过程
	plugins: [
        // 将样式文件 抽取至独立文件内
        new MiniCssExtractPlugin({
            filename: '[name].css',
            chunkFilename: '[id].css'
        }),


        // 配置环境变量
        new webpack.DefinePlugin({
            'process.env': {
                VERSION: JSON.stringify(version)
            }
        }),

        // 使用交互式可缩放树形图可视化webpack输出文件的大小
        // https://www.npmjs.com/package/webpack-bundle-analyzer
        new BundleAnalyzerPlugin({
            // 是否启动后打开窗口
            openAnalyzer: false
        })
	],

	// 处理项目中的不同类型的模块
	module: {
		rules: getRules()
	}
};

module.exports = config;