const CompressionWebpackPlugin = require('compression-webpack-plugin');

module.exports = {
	configureWebpack: config => {
		if (process.env.UNI_PLATFORM === 'h5') {
			filePath = 'static/js/'; //打包文件存放文件夹路径
			Timestamp = '.' + new Date().getTime(); //时间戳
		}

		config.plugins.push(
			new CompressionWebpackPlugin({
				filename: "[path][base].gz",
				algorithm: "gzip",
				test: /\.js$/,
				threshold: 10240,
				minRatio: 0.8,
				exclude: /node_modules/,
				deleteOriginalAssets: false // 是否删除未压缩的源文件，谨慎设置，如果希望提供非gzip的资源，可不设置或者设置为false（比如删除打包后的gz后还可以加载到原始资源文件）
			})
		);
	},
	chainWebpack: config => {
		//通过运行 vue inspect plugins 的值html插件别名。。

		config.when(process.env.UNI_PLATFORM === 'h5', config => {
			config.plugin('html-index').tap(args => {
				args[0].minify = {
					removeAttributeQuotes: false
				}
				return args
			})
		})
		config.when(process.env.UNI_PLATFORM === 'h5'&&process.env.NODE_ENV === "production", config => {
			config.plugin('html-index').tap(args => {
				args[0].minify = {
					removeAttributeQuotes: false
				}
				return args
			})
			config.output.filename("static/js/[name]-[contenthash].js");
			config.output.chunkFilename("static/js/[id]-[chunkhash].js");
			config.optimization.splitChunks({
				name: false, //官方建议在生产环境时将 name 设置为 false，为了“it doesn't change names unnecessarily”
				hidePathInfo: true,
			})

		})
	},
}