import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import { resolve } from 'path'

export default defineConfig(({ mode }) => ({
  base: '/',
  plugins: [vue()],
  resolve: {
    alias: [
      { find: '@', replacement: resolve(__dirname, 'src') },
      // logicflow 仅提供 UMD bundle，Rollup 当 ESM 处理会 TDZ，强制走 CJS 入口
      { find: /^@logicflow\/core$/, replacement: '@logicflow/core/dist/entry.js' },
      { find: /^@logicflow\/extension$/, replacement: '@logicflow/extension/cjs/index.js' }
    ]
  },
  build: {
    sourcemap: mode !== 'production',
    chunkSizeWarningLimit: 1000,
    rollupOptions: {
      output: {
        // 函数式分 chunk：将 logicflow 所有模块锁在一个 chunk 内，避免跨 chunk 循环引用
        manualChunks(id) {
          if (id.includes('@logicflow')) return 'logicflow'
          if (id.includes('element-plus')) return 'element-plus'
          if (id.includes('vue') || id.includes('vue-router') || id.includes('pinia')) return 'vue-vendor'
        }
      }
    }
  },
  server: {
    port: 3000,
    proxy: {
      '/api': {
        target: 'http://localhost:8080',
        changeOrigin: true,
        rewrite: (path) => path.replace(/^\/api/, '')
      },
      '/uploads': {
        target: 'http://localhost:8080',
        changeOrigin: true
      },
      '/analysis': {
        target: 'http://localhost:8080',
        changeOrigin: true
      }
    }
  }
}))