import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import tailwindcss from '@tailwindcss/vite'
import { fileURLToPath, URL } from 'node:url'

// https://vite.dev/config/
const config = defineConfig({
  plugins: [react(), tailwindcss()],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url)),
      // Reduce bundle size by aliasing React to Preact
      'react': 'preact/compat',
      'react-dom': 'preact/compat',
      'react-dom/test-utils': 'preact/test-utils',
      'react/jsx-runtime': 'preact/jsx-runtime',
    },
  },
  build: {
    sourcemap: false,
    target: 'es2018',
    rollupOptions: {
      output: {
        // Split vendor libraries to avoid inflating the main chunk
        manualChunks(id) {
          if (id.includes('node_modules')) {
            if (id.includes('preact') || id.includes('react')) return 'vendor'
            if (id.includes('@radix-ui')) return 'radix'
          }
          return undefined
        },
      },
    },
  },
})

export { config as default}