import { defineConfig, loadEnv } from 'vite'
import vue from '@vitejs/plugin-vue'
import { resolve } from 'path'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'

export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), '')

  return {
    plugins: [
      vue(),
      AutoImport({
        imports: ['vue', 'vue-router', 'pinia'],
        resolvers: [
          ElementPlusResolver()
        ],
        dts: 'src/auto-imports.d.ts',
        eslintrc: {
          enabled: true
        }
      }),
      Components({
        resolvers: [
          ElementPlusResolver()
        ],
        dts: 'src/components.d.ts',
        // 自动导入组件的目录
        dirs: ['src/components']
      })
    ],
    resolve: {
      alias: {
        '@': resolve(__dirname, 'src')
      }
    },
    server: {
      port: 3000,
      host: true,
      proxy: {
        '/api': {
          target: env.VITE_API_BASE_URL || 'http://localhost:5000',
          changeOrigin: true
        }
      }
    },
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: `@use "@/assets/styles/variables.scss" as *;`
        }
      }
    },
    build: {
      outDir: 'dist',
      sourcemap: false,
      chunkSizeWarningLimit: 2000,
      rollupOptions: {
        output: {
          manualChunks: {
            'element-plus': ['element-plus'],
            echarts: ['echarts'],
            vue: ['vue', 'vue-router', 'pinia']
          }
        }
      }
    }
  }
})