import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import * as path from "node:path";

export default defineConfig({
  plugins: [vue()],
  resolve: {
    alias: {
      '@': path.resolve(__dirname, './src')
    }
  },
  server: {
    proxy: {
      '/api': {
        target: 'http://localhost:3001',
        changeOrigin: true,
      }
    }
  },
  build: {
    // 构建目标：现代浏览器
    target: 'es2020',
    // chunk 大小警告阈值（kB）
    chunkSizeWarningLimit: 1500,
    rollupOptions: {
      output: {
        // 将大型依赖拆分为独立 chunk，利用浏览器缓存
        manualChunks: {
          'vendor-vue': ['vue', 'vue-router'],
          'vendor-element': ['element-plus'],
          'vendor-axios': ['axios'],
        }
      }
    }
  }
})