/* eslint-disable */
const path = require("path");
const fs = require("fs");
const webpack = require("webpack");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const CopyWebpackPlugin = require("copy-webpack-plugin");

/** Lecture minimale de .env (sans dépendance) ; les variables d'environnement priment. */
function loadEnv() {
  const env = {};
  const file = path.resolve(__dirname, ".env");
  if (fs.existsSync(file)) {
    for (const line of fs.readFileSync(file, "utf8").split(/\r?\n/)) {
      const m = line.match(/^\s*([A-Z0-9_]+)\s*=\s*(.*)\s*$/);
      if (m) env[m[1]] = m[2].replace(/^["']|["']$/g, "");
    }
  }
  return { ...env, ...process.env };
}

module.exports = async (_env, argv) => {
  const e = loadEnv();
  const baseUrl = (e.ADDIN_BASE_URL || "https://signature.beziers-mediterranee.fr/addin").replace(/\/$/, "");
  const origin = new URL(baseUrl).origin;
  const config = {
    tenantId: e.ENTRA_TENANT_ID || "",
    clientId: e.ADDIN_CLIENT_ID || "",
    apiBaseUrl: e.API_BASE_URL || origin,
    apiScope: e.API_SCOPE || "",
    portalUrl: e.PORTAL_URL || `${origin}/me`,
  };
  if (argv.mode === "production" && (!config.tenantId || !config.clientId || !config.apiScope)) {
    console.warn("\n[ATTENTION] ENTRA_TENANT_ID, ADDIN_CLIENT_ID ou API_SCOPE vide : renseignez addin/.env\n");
  }

  // Serveur de dev HTTPS (npm run dev-server) : certificat localhost approuvé par office-addin-dev-certs,
  // /api et /img relayés vers le Laravel local pour éviter le contenu mixte.
  let devServer;
  if (process.env.WEBPACK_SERVE) {
    const devCerts = require("office-addin-dev-certs");
    const https = await devCerts.getHttpsServerOptions();
    const backend = e.DEV_BACKEND_URL || "http://127.0.0.1:8000";
    devServer = {
      port: Number(new URL(baseUrl).port || 3000),
      server: { type: "https", options: { ca: https.ca, key: https.key, cert: https.cert } },
      headers: { "Access-Control-Allow-Origin": "*" },
      static: false,
      devMiddleware: { publicPath: new URL(baseUrl).pathname.replace(/\/?$/, "/") },
      proxy: [{ context: ["/api", "/img"], target: backend, changeOrigin: true }],
    };
  }

  return {
    devServer,
    entry: {
      launchevent: "./src/launchevent/launchevent.ts",
      taskpane: "./src/taskpane/taskpane.ts",
    },
    output: {
      path: path.resolve(__dirname, "dist"),
      filename: "[name].js",
      clean: true,
    },
    resolve: { extensions: [".ts", ".js"] },
    module: { rules: [{ test: /\.ts$/, use: "ts-loader", exclude: /node_modules/ }] },
    devtool: argv.mode === "production" ? false : "source-map",
    performance: { hints: false },
    plugins: [
      new webpack.DefinePlugin({ __ADDIN_CONFIG__: JSON.stringify(config) }),
      new HtmlWebpackPlugin({
        filename: "commands.html",
        template: "./src/launchevent/commands.html",
        chunks: ["launchevent"],
        scriptLoading: "blocking",
      }),
      new HtmlWebpackPlugin({
        filename: "taskpane.html",
        template: "./src/taskpane/taskpane.html",
        chunks: ["taskpane"],
      }),
      new CopyWebpackPlugin({
        patterns: [
          { from: "assets", to: "assets" },
          {
            from: "manifest.xml",
            to: "manifest.xml",
            transform: (content) =>
              content
                .toString()
                .replace(/\{\{BASE_URL\}\}/g, baseUrl)
                .replace(/\{\{ORIGIN\}\}/g, origin)
                .replace(/\{\{SUPPORT_URL\}\}/g, e.SUPPORT_URL || `${origin}/aide`),
          },
        ],
      }),
    ],
  };
};