import { rmSync } from "node:fs";
import { defineConfig } from "vite";
import vue from "@vitejs/plugin-vue";
import electron from "vite-plugin-electron";
import renderer from "vite-plugin-electron-renderer";
import { notBundle } from "vite-plugin-electron/plugin";
import pkg from "./package.json";

// https://vitejs.dev/config/
export default defineConfig(({ command }) => {
  rmSync("dist-electron", { recursive: true, force: true });

  const isServe = command === "serve";
  const isBuild = command === "build";
  const sourcemap = isServe || !!process.env.VSCODE_DEBUG;

  return {
    optimizeDeps: {
      esbuildOptions: {
        target: "esnext",
      },
    },
    build: {
      target: "esnext",
    },
    plugins: [
      vue(),
      electron([
        {
          // Main process entry file of the Electron App.
          entry: "electron/main/index.ts",
          onstart({ startup }) {
            if (process.env.VSCODE_DEBUG) {
              console.log(
                /* For `.vscode/.debug.script.mjs` */ "[startup] Electron App",
              );
            } else {
              startup();
            }
          },
          vite: {
            build: {
              sourcemap,
              minify: isBuild,
              outDir: "dist-electron/main",
              rollupOptions: {
                // Some third-party Node.js libraries may not be built correctly by Vite, especially `C/C++` addons,
                // we can use `external` to exclude them to ensure they work correctly.
                // Others need to put them in `dependencies` to ensure they are collected into `app.asar` after the app is built.
                // Of course, this is not absolute, just this way is relatively simple. :)
                external: Object.keys(
                  "dependencies" in pkg ? pkg.dependencies : {},
                ),
              },
            },
            plugins: [
              // This is just an option to improve build performance, it's non-deterministic!
              // e.g. `import log from 'electron-log'` -> `const log = require('electron-log')`
              isServe && notBundle(),
            ],
          },
        },
        {
          entry: "electron/preload/index.ts",
          onstart({ reload }) {
            // Notify the Renderer process to reload the page when the Preload scripts build is complete,
            // instead of restarting the entire Electron App.
            reload();
          },
          vite: {
            build: {
              sourcemap: sourcemap ? "inline" : undefined, // #332
              minify: isBuild,
              outDir: "dist-electron/preload",
              rollupOptions: {
                external: Object.keys(
                  "dependencies" in pkg ? pkg.dependencies : {},
                ),
              },
            },
            plugins: [isServe && notBundle()],
          },
        },
      ]),
      // Use Node.js API in the Renderer process
      renderer(),
    ],
    server:
      process.env.VSCODE_DEBUG &&
      (() => {
        const url = new URL(pkg.debug.env.VITE_DEV_SERVER_URL);
        return {
          host: url.hostname,
          port: +url.port,
        };
      })(),
    define: {
      "import.meta.env.PACKAGE_VERSION": JSON.stringify(pkg.version),
    },
    clearScreen: false,
  };
});