tsup.config.ts

import { join } from 'path';
import { defineConfig } from 'tsup';
import baseConfig from '../../tsup.base.config';

// Redirect import paths for "microsoft-cognitiveservices-speech-sdk(...)"
// to point to es2015 distribution for all importing modules
const resolveCognitiveServicesToES2015 = {
  name: 'microsoft-cognitiveservices-speech-sdk',
  setup(build) {
    build.onResolve({ filter: /microsoft-cognitiveservices-speech-sdk.+/u }, args => ({
      path: join(process.cwd(), 'node_modules', args.path.replace('distrib/lib', 'distrib/es2015') + '.js')
    }));
  }
};

const config: typeof baseConfig = {
  ...baseConfig,
  entry: {
    'botframework-directlinespeech-sdk': './src/index.mjs'
  },
  env: {
    ...baseConfig.env,

    // Followings are required by microsoft-cognitiveservices-speech-sdk:
    NODE_TLS_REJECT_UNAUTHORIZED: '',
    SPEECH_CONDUCT_OCSP_CHECK: '',
    SPEECH_OCSP_CACHE_ROOT: ''
  },
  esbuildPlugins: [resolveCognitiveServicesToES2015],
  // We need to internalize event-target-shim because it appear as transient packages with a different version.
  noExternal: ['event-target-shim']
};

export default defineConfig([
  {
    ...config,
    format: 'esm'
  },
  {
    ...config,
    format: 'cjs',
    target: [...config.target, 'es2019']
  },
  {
    ...config,
    dts: false,
    entry: {
      [process.env.NODE_ENV === 'production' ? 'directlinespeech.production.min' : 'directlinespeech.development']:
        './src/index.mjs'
    },
    env: {
      ...config.env,
      module_format: 'global'
    },
    esbuildPlugins: [],
    format: 'iife',
    outExtension() {
      return { js: '.js' };
    },
    platform: 'browser',
    target: [...config.target, 'es2019']
  }
]);