import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';
import path from 'path';

export default defineConfig({
  plugins: [react()],
  resolve: {
    alias: {
      '@': path.resolve(__dirname, './src'),
      '@/components': path.resolve(__dirname, './src/components'),
      '@/pages': path.resolve(__dirname, './src/pages'),
      '@/services': path.resolve(__dirname, './src/services'),
      '@/hooks': path.resolve(__dirname, './src/hooks'),
      '@/utils': path.resolve(__dirname, './src/utils'),
      '@/types': path.resolve(__dirname, './src/types'),
      '@/constants': path.resolve(__dirname, './src/constants'),
      '@/config': path.resolve(__dirname, './src/config'),
    },
  },
  server: {
    port: 3001,
    proxy: {
      '/api': {
        target: 'http://localhost:3000',
        changeOrigin: true,
      },
    },
  },
  build: {
    // Optimize build output
    target: 'esnext',
    minify: 'esbuild',
    sourcemap: false, // Set to true for production debugging if needed
    rollupOptions: {
      output: {
        // Manual code splitting for better caching
        manualChunks: {
          // Vendor chunks
          'react-vendor': ['react', 'react-dom', 'react-router-dom'],
          'query-vendor': ['@tanstack/react-query'],
          'ui-vendor': ['recharts', 'react-icons', 'react-hot-toast'],
          'utils-vendor': ['axios', 'zod', 'date-fns', 'clsx', 'zustand'],
        },
      },
    },
    // Chunk size warning limit (1MB)
    chunkSizeWarningLimit: 1000,
  },
  // Optimize dependencies
  optimizeDeps: {
    include: ['react', 'react-dom', 'react-router-dom', '@tanstack/react-query'],
  },
});