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

export default defineConfig(({ mode }) => {
    const env = loadEnv(mode, '.', '');
    return {
      server: {
        port: 3000,
        host: '0.0.0.0',
      },
      plugins: [react()],
      define: {
        'process.env.API_KEY': JSON.stringify(env.GEMINI_API_KEY),
        'process.env.GEMINI_API_KEY': JSON.stringify(env.GEMINI_API_KEY)
      },
      resolve: {
        alias: {
          '@': path.resolve(__dirname, '.'),
        }
      },
      build: {
        rollupOptions: {
          output: {
            manualChunks: {
              // React 核心
              'vendor-react': ['react', 'react-dom', 'react-router-dom'],
              // Markdown 渲染相关
              'vendor-markdown': ['react-markdown', 'remark-gfm'],
              // 代码高亮 (最大的包)
              'vendor-syntax': ['react-syntax-highlighter'],
              // Excel 处理
              'vendor-xlsx': ['xlsx'],
              // 图标库
              'vendor-icons': ['lucide-react'],
            }
          }
        },
        // 可选：调整警告阈值
        chunkSizeWarningLimit: 600,
      },
      test: {
        globals: true,
        environment: 'jsdom',
        setupFiles: ['./tests/setup.ts'],
      }
    };
});