import fs from 'node:fs';
import path from 'node:path';
import process from 'node:process';
import url from 'node:url';

import {defineConfig} from 'vite';

// Vite Plugins
import preactPreset from '@preact/preset-vite';
import webExtension from 'vite-plugin-web-extension';

const currentDir = path.dirname(url.fileURLToPath(import.meta.url));
const sourceDir = path.join(currentDir, 'source');

const targetBrowser = process.env.VITE_BROWSER ?? 'firefox';
process.env.VITE_BROWSER = targetBrowser;

let webExtConfig;

if (targetBrowser === 'chromium') {
  fs.mkdirSync(path.join(currentDir, 'chromium'), {recursive: true});
  webExtConfig = {
    browserConsole: true,
    chromiumProfile: 'chromium/',
    keepProfileChanges: true,
    startUrl: 'chrome://extensions/',
    target: 'chromium',
  };
} else {
  fs.mkdirSync(path.join(currentDir, 'firefox'), {recursive: true});
  webExtConfig = {
    browserConsole: true,
    firefoxProfile: 'firefox/',
    keepProfileChanges: true,
    startUrl: 'about:debugging#/runtime/this-firefox',
    target: 'firefox-desktop',
  };
}

const buildDir = path.join(currentDir, 'build', targetBrowser);

export default defineConfig({
  build: {
    minify: true,
    outDir: buildDir,
    sourcemap: 'inline',
  },
  plugins: [
    preactPreset(),
    // See vite-plugin-web-extension for documentation.
    // https://github.com/aklinker1/vite-plugin-web-extension
    webExtension({
      assets: 'assets',
      browser: targetBrowser,
      manifest: path.join(sourceDir, `${targetBrowser}-manifest.json`),
      webExtConfig,
    }),
  ],
  root: sourceDir,
});