import { defineConfig } from 'vite';
import { readFileSync, writeFileSync } from 'fs';
import { resolve } from 'path';

function swVersionPlugin() {
  return {
    name: 'sw-version',
    writeBundle() {
      const swPath = resolve('dist/sw.js');
      const content = readFileSync(swPath, 'utf-8');
      const versioned = content.replace('__BUILD_TIME__', Date.now().toString());
      writeFileSync(swPath, versioned);
    }
  };
}

export default defineConfig({
  root: '.',
  publicDir: 'public',
  build: {
    outDir: 'dist',
    target: 'esnext'
  },
  plugins: [swVersionPlugin()],
  server: {
    port: 3000
  },
  preview: {
    port: 3000
  }
});