import type { UserConfig, ConfigEnv } from 'vite';
import { loadEnv } from 'vite';
import { resolve } from 'path';
import { wrapperEnv } from './build/utils';
import { createVitePlugins } from './build/vite/plugin';
import { OUTPUT_DIR } from './build/constant';

function pathResolve(dir: string) {
  return resolve(process.cwd(), '.', dir);
}

export default ({ command, mode }: ConfigEnv): UserConfig => {
  const root = process.cwd();
  const env = loadEnv(mode, root);
  const viteEnv = wrapperEnv(env);
  const { VITE_PUBLIC_PATH, VITE_DROP_CONSOLE, VITE_PORT, VITE_GLOB_PROD_MOCK } = viteEnv;
  const prodMock = VITE_GLOB_PROD_MOCK;
  const isBuild = command === 'build';
  return {
    base: VITE_PUBLIC_PATH,
    esbuild: {},
    resolve: {
      alias: [
        {
          find: /\/#\//,
          replacement: pathResolve('types') + '/',
        },
        {
          find: '@',
          replacement: pathResolve('src') + '/',
        },
      ],
      dedupe: ['vue'],
    },
    plugins: createVitePlugins(viteEnv, isBuild, prodMock),
    css: {
      preprocessorOptions: {
        less: {
          modifyVars: {},
          javascriptEnabled: true,
          additionalData: `@import "src/styles/global.less";`,
        },
        scss: {
          additionalData: `@import "src/styles/global.less";`,
        },
      },
    },
    server: {
      port: VITE_PORT,
      // proxy: {
      //     '/api': {
      //         target: '',
      //         changeOrigin: true,
      //         rewrite: (path) => path.replace(/^\/api/, '/api/v1')
      //     }
      // }
    },
    optimizeDeps: {
      include: [],
      exclude: ['vue-demi'],
    },
    build: {
      target: 'es2015',
      outDir: OUTPUT_DIR,
      terserOptions: {
        compress: {
          keep_infinity: true,
          drop_console: VITE_DROP_CONSOLE,
        },
      },
      brotliSize: false,
      chunkSizeWarningLimit: 2000,
    },
  };
};