import { existsSync, writeFileSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import vue from '@vitejs/plugin-vue';
import vueJsx from '@vitejs/plugin-vue-jsx';
import UnoCSS from 'unocss/vite';
import { defineConfig } from 'vite';
import dts from 'vite-plugin-dts';

// https://vitejs.dev/config/
export default defineConfig({
  // define: {
  //   'process.env': process.env,
  // },
  build: {
    emptyOutDir: false,
    lib: {
      entry: fileURLToPath(new URL('src/index.ts', import.meta.url)),
      formats: ['es'],
      name: 'lowcode-create',
    },
    sourcemap: true,
    rollupOptions: {
      onwarn(warning, warn) {
        // Suppress "is imported from external module but never used" warnings for Vue internals
        if (warning.code === 'UNUSED_EXTERNAL_IMPORT' && warning.exporter === 'vue') {
          return;
        }
        warn(warning);
      },
      external: ['vue', 'element-plus-cisdi', 'lodash-es', 'uuid'],
      output: {
        globals: {
          'vue': 'Vue',
          'element-plus-cisdi': 'ElementPlusCisdi',
          'lodash-es': 'LodashEs',
          'uuid': 'Uuid',
        },
        exports: 'named',
        banner: `
/**
 *  Copyright ${new Date(Date.now()).getFullYear()} Cisdi
 *  @license MIT
**/
`,
        entryFileNames: '[name].js',
        chunkFileNames: '[name]-[hash].js',
        assetFileNames: '[name].[ext]',
      },
    },
  },
  plugins: [
    vue(),
    vueJsx(),
    UnoCSS(),
    dts({
      include: ['src/**/*'],
      exclude: ['src/**/*.spec.ts', 'src/**/*.test.ts'],
      copyDtsFiles: true,
      entryRoot: 'src',
      afterBuild() {
        // vite-plugin-dts 不会为纯类型重导出模块生成 index.d.ts
        // 这里手动创建缺失的 typings/index.d.ts
        const typingsIndexPath = 'dist/typings/index.d.ts';
        if (!existsSync(typingsIndexPath)) {
          writeFileSync(typingsIndexPath, `export * from './BaseWidgetProps';
export * from './DesignerApiInterface';
export * from './DesignerConfig';
export * from './DetailRender';
export * from './FormApisType';
export * from './FormSchema';
export * from './RuntimeApi';
`);
        }
      },
    }),
  ],
});