const path = require("path");
const resolve = dir => path.join(__dirname, dir);
const IS_PROD = ["production", "prod"].includes(process.env.NODE_ENV);
const CompressionWebpackPlugin = require("compression-webpack-plugin");
const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\?.*)?$/i;
// 图形化打包详情
// const BundleAnalyzer = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
    publicPath: "/", // 默认'/'，部署应用包时的基本 URL
    outputDir: "dist", // 'dist', 生产环境构建文件的目录
    assetsDir: "pc", // 相对于outputDir的静态资源(js、css、img、fonts)目录
    lintOnSave: false,
    indexPath: "pc.html",
    runtimeCompiler: true, // 是否使用包含运行时编译器的 Vue 构建版本
    productionSourceMap: false, // 生产环境的 source map
    devServer: {
        open: true,
        index: "index.html", //默认启动serve 打开index页面
        port: 8089,
        https: false,
        hotOnly: false,
        disableHostCheck: true,
        proxy: {
            "/domain": {
                // target: "http://localhost:8089",
                // 测试环境
                // target: "http://192.168.18.236:18888/",
                // 线上测试环境
                // target: "http://park.test.hhrchina.com/",
                target: "http://xiaokunshan.cn",
                // 谢老师
                // target: "http://192.168.18.138:18888/",
                // 阚老师
                // target: "http://192.168.18.7:18888/",
                // 何老师
                // target: "http://192.168.30.48:18888/",
                changeOrigin: true,
                pathRewrite: {
                    "^/domain": "",
                },
            },
        },
    },
    chainWebpack: config => {
        // 修复热更新
        config.resolve.symlinks(true);
        // 添加别名
        config.resolve.alias
            .set("@", resolve("./src"))
            .set("@assets", resolve("./src/assets"))
            .set("@api", resolve("./src/api"))
            .set("@utils", resolve("./src/utils"))
            .set("@components", resolve("./src/components"))
            .set("@views", resolve("./src/views"))
            .set("@mixin", resolve("./src/mixin"));
    },
    css: {
        loaderOptions: {
            sass: {
                // 根据自己样式文件的位置调整
                prependData: `@import "@assets/scss/global.scss";`, //这里的@是别名
            },
        },
    },
    configureWebpack: config => {
        config.optimization = {
            runtimeChunk: true,
        };
        const plugins = [];
        if (IS_PROD) {
            plugins.push(
                // 开启gzip
                new CompressionWebpackPlugin({
                    filename: "[path].gz[query]",
                    algorithm: "gzip",
                    test: productionGzipExtensions,
                    threshold: 10240,
                    minRatio: 0.8,
                })
                // new BundleAnalyzer()
            );
        }
        config.plugins = [...config.plugins, ...plugins];
    },
};