import { defineConfig } from 'vite';
import { resolve } from 'path';
import { svelte } from '@sveltejs/vite-plugin-svelte';
import dts from 'vite-plugin-dts';
import replace from '@rollup/plugin-replace';

// https://vitejs.dev/config/
export default defineConfig({
  build: {
    outDir: 'dist',
    emptyOutDir: true,
    minify: true,
    sourcemap: true,
    lib: {
      entry: resolve(__dirname, 'src/index.ts'),
      cssFileName: 'index',
      fileName: (format) => {
        return format === 'umd' ? 'index.umd.js' : 'index.js';
      },
      formats: ['es', 'umd'],
      name: 'Tinyflow',
    },
    rollupOptions: {
      output: {
        // 确保所有依赖都被打包
        inlineDynamicImports: true,
        exports: 'named',
      },
      plugins: [
        replace({
          preventAssignment: true,
          'process.env.NODE_ENV': JSON.stringify('production'), // 替换为生产环境
        }),
      ],
    },
  },
  plugins: [
    svelte({ emitCss: false }),
    dts({
      rollupTypes: true,
      tsconfigPath: './tsconfig.app.json',
    }),
  ],
});