tsdown.config.ts

import { defineConfig } from 'tsdown'

const ID = '@dsh-external/dsh-client-ui-rollback-visual'

// Resolved from the loader's frozen module table at runtime, never inlined.
const EXTERNALS = [
  'react',
  'react/jsx-runtime',
  'react-dom',
  'react-dom/client',
  '@deepseek-ai/cordis',
]

export default defineConfig([
  // Host (node) half: imported by the harness Loader; no behavior.
  {
    name: ID,
    entry: ['src/index.ts'],
    outDir: 'lib',
    format: ['esm'],
    platform: 'node',
    target: 'es2024',
    dts: false,
    clean: false,
    fixedExtension: false,
    sourcemap: false,
    external: ['@deepseek-ai/cordis'],
  },
  // Client (browser) half: closure-factory artifact handed to
  // window.__ModuleLoader__.load({ id, factory }); externals resolve through
  // the injected require from the loader module table.
  {
    name: `${ID}/client`,
    entry: { client: 'src/client/index.ts' },
    outDir: 'lib',
    format: 'cjs',
    platform: 'browser',
    target: 'es2022',
    dts: false,
    clean: false,
    sourcemap: true,
    external: EXTERNALS,
    define: {
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV ?? 'production'),
      'import.meta.env.MODE': JSON.stringify(process.env.NODE_ENV ?? 'production'),
      'import.meta.env': JSON.stringify({ MODE: process.env.NODE_ENV ?? 'production' }),
    },
    outputOptions: {
      entryFileNames: 'client.js',
      banner: `window.__ModuleLoader__.load({ id: ${JSON.stringify(ID)}, factory: (require) => {`,
      footer: 'return module.exports; } });',
      intro: 'var module = { exports: {} }; var exports = module.exports;',
    },
  },
])