import { rmSync } from "node:fs";
import path from "node:path";
import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
import electron from "vite-electron-plugin";
import { customStart, loadViteEnv } from "vite-electron-plugin/plugin";
import preload from "vite-plugin-electron";
import pkg from "./package.json";

let preloadHasReady = false;

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

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

  return {
    resolve: {
      alias: {
        "@": path.join(__dirname, "src"),
      },
    },
    plugins: [
      react(),
      electron({
        include: ["electron/main"],
        transformOptions: {
          sourcemap,
        },
        plugins: [
          customStart((args) => {
            if (process.env.VSCODE_DEBUG) {
              // Start Electron via VSCode
              console.log(
                /* For `.vscode/.debug.script.mjs` */ "[startup] Electron App",
              );
            } else {
              if (preloadHasReady) {
                args?.startup();
              } else {
                console.log("[startup] waiting for preload");
              }
            }
          }),
          // Allow use `import.meta.env.VITE_SOME_KEY` in Main process
          loadViteEnv(),
        ],
      }),
      // Preload scripts
      preload({
        entry: ["electron/preload/index.ts"],
        vite: {
          build: {
            minify: false,
            outDir: "dist-electron/preload",
          },
        },
        onstart(args) {
          if (preloadHasReady) {
            args.reload();
          } else {
            preloadHasReady = true;
            args.startup();
          }
        },
      }),
    ],
    server: !!process.env.VSCODE_DEBUG
      ? (() => {
          const url = new URL(pkg.debug.env.VITE_DEV_SERVER_URL);
          return {
            host: url.hostname,
            port: +url.port,
          };
        })()
      : undefined,
    clearScreen: false,
  };
});