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

// https://vite.dev/config/
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',
      }),
      Components({
        resolvers: [ElementPlusResolver()],
        dts: 'src/components.d.ts',
      }),
    ],
    resolve: {
      alias: {
        '@': resolve(__dirname, 'src'),
      },
    },
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: `@import "@/styles/variables.scss";\n`
        }
      }
    },
    server: {
      port: 5173,
      host: true,
      proxy: {
        '/dev-api': {
          target: env.VITE_API_URL || 'http://localhost:8080',
          changeOrigin: true,
          rewrite: (path) => path.replace(/^\/dev-api/, ''),
        },
        '/prod-api': {
          target: env.VITE_API_URL || 'http://localhost:8080',
          changeOrigin: true,
          rewrite: (path) => path.replace(/^\/prod-api/, ''),
        },
      },
    },
    build: {
      target: 'es2015',
      outDir: 'dist',
      assetsDir: 'assets',
      sourcemap: false,
      chunkSizeWarningLimit: 1500,
      rollupOptions: {
        output: {
          manualChunks(id) {
            if (id.includes('element-plus')) {
              return 'element-plus'
            }
            if (id.includes('node_modules') && (id.includes('vue') || id.includes('vue-router') || id.includes('pinia'))) {
              return 'vue-vendor'
            }
            if (id.includes('echarts')) {
              return 'echarts'
            }
          },
        },
      },
    },
  }
})