const path = require("path");
const webpack = require("webpack");
const pkg = require("./package.json");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const {CleanWebpackPlugin} = require("clean-webpack-plugin");
// const BundleAnalyzerPlugin = require("webpack-bundle-analyzer").BundleAnalyzerPlugin;
const TerserPlugin = require("terser-webpack-plugin");

module.exports = (env, argv) => {
  return {
    mode: argv.mode || "development",
    watch: argv.mode !== "production",
    devtool: argv.mode !== "production" ? "eval" : false,
    output: {
      publicPath: "",
      filename: "[name].[chunkhash].js",
      path: path.resolve(__dirname, "stage/build/desktop"),
    },
    entry: {
      "main": "./src/index.ts",
    },
    optimization: {
      minimize: true,
      minimizer: [
        new TerserPlugin({
          terserOptions: {
            format: {
              comments: false,
            },
          },
          extractComments: false,
        }),
      ],
    },
    resolve: {
      fallback: {
        "path": require.resolve("path-browserify"),
      },
      extensions: [".ts", ".js", ".tpl", ".scss"],
    },
    module: {
      rules: [
        {
          test: /\.tpl/,
          include: [
            path.resolve(__dirname, "src/assets/template/desktop/index.tpl")],
          loader: "html-loader",
          options: {
            sources: false,
          },
        },
        {
          test: /\.js$/,
          include: [path.resolve(__dirname, "src/asset/pdf")],
          use: {
            loader: "babel-loader",
            options: {
              presets: ["@babel/preset-env"],
              plugins: [
                [
                  "@babel/plugin-transform-runtime",
                  {
                    helpers: false,
                    regenerator: true,
                  },
                ],
              ],
            },
          },
        },
        {
          test: /\.ts(x?)$/,
          include: [path.resolve(__dirname, "src")],
          use: [
            {
              loader: "ts-loader",
            },
            {
              loader: "ifdef-loader",
              options: {
                "ifdef-verbose": false,
                BROWSER: true,
                MOBILE: false,
              },
            },
          ],
        },
        {
          test: /\.scss$/,
          include: [
            path.resolve(__dirname, "src/assets/scss"),
          ],
          use: [
            MiniCssExtractPlugin.loader,
            {
              loader: "css-loader", // translates CSS into CommonJS
            },
            {
              loader: "sass-loader", // compiles Sass to CSS
            },
          ],
        },
        {
          test: /\.woff$/,
          type: "asset/resource",
          generator: {
            filename: "../fonts/JetBrainsMono-Regular.woff",
          },
        },
        {
          test: /\.(png|svg)$/,
          use: [
            {
              loader: "file-loader",
              options: {
                name: "[name].[ext]",
                outputPath: "../../",
              },
            },
          ],
        },
      ],
    },
    plugins: [
      // new BundleAnalyzerPlugin(),
      new CleanWebpackPlugin({
        cleanStaleWebpackAssets: false,
        cleanOnceBeforeBuildPatterns: [
          path.join(__dirname, "stage/build/desktop")],
      }),
      new webpack.DefinePlugin({
        SIYUAN_VERSION: JSON.stringify(pkg.version),
        NODE_ENV: JSON.stringify(argv.mode),
      }),
      new MiniCssExtractPlugin({
        filename: "base.[contenthash].css",
      }),
      new HtmlWebpackPlugin({
        inject: "head",
        chunks: ["main"],
        filename: "index.html",
        template: "src/assets/template/desktop/index.tpl",
      }),
    ],
  };
};