import type { UserConfig } from 'vite';
/**
 *  vite 配置
 *  @see https://cn.vitejs.dev/config/
 *  @type {import('vite').UserConfig}
 */
import { resolve } from 'node:path';
import process from 'node:process';
import TransformPages from 'uni-read-pages-vite';
import { defineConfig, loadEnv } from 'vite';
import { createVitePlugins, currentPlatform, resolveProxy } from './build';
import postcssPlugins from './postcss.config';

export default defineConfig(async ({ mode }) => {
  const root = process.cwd();
  const env = loadEnv(mode, resolve(root, 'env'));
  const isProd = mode === 'production';
  const { VITE_PROXY_PREFIX, VITE_UPLOAD_PROXY_PREFIX, VITE_BASE_URL, VITE_UPLOAD_URL, VITE_PORT } = env;
  return {
    base: './',
    envDir: './env', // 自定义env目录
    // 设置路径别名
    resolve: {
      alias: {
        '@': resolve('./src'),
      },
      extensions: ['.js', '.ts'], // 使用路径别名时想要省略的后缀名，可以自己 增减
    },
    // 自定义全局变量
    define: {
      'process.env': {},
      'PLATFORM': JSON.stringify(currentPlatform),
      'ROUTES': new TransformPages().routes,
    },
    css: {
      preprocessorOptions: {
        scss: {
          api: 'modern-compiler', // 或 'modern' 表示使用现代编译器
          silenceDeprecations: ['legacy-js-api'],
        },
      },
      postcss: {
        plugins: postcssPlugins,
      },
    },
    plugins: createVitePlugins({ isProd }),
    // 开发服务器配置
    server: {
      host: true,
      // open: true,
      port: Number.parseInt(VITE_PORT!, 10),
      proxy: resolveProxy([[VITE_PROXY_PREFIX!, VITE_BASE_URL!], [VITE_UPLOAD_PROXY_PREFIX!, VITE_UPLOAD_URL!]]),
    },
    // 构建配置
    build: {
      outDir: 'dist',
      chunkSizeWarningLimit: 1500,
      sourcemap: !isProd,
      target: 'es6',
      minify: isProd ? 'terser' : false,
      terserOptions: {
        compress: {
          drop_console: isProd,
          drop_debugger: true,
        },
      },
      rollupOptions: {
        output: {
          entryFileNames: `assets/[name].${new Date().getTime()}.js`,
          chunkFileNames: `assets/[name].${new Date().getTime()}.js`,
          assetFileNames: `assets/[name].${new Date().getTime()}.[ext]`,
          compact: true,
        },
      },
    },
  } as UserConfig;
});