fix(ts): correct entry point (algolia#4829)

The entry point used to be:

```ts
export { default } from './index.es';
export * from './connectors';
export * from './helpers';
export * from './types';
export * from './widgets';
export * from './lib/routers';
```

While really the entry point should be the same as index.es.ts, as otherwise the js bundle doesn't match the declaration.

This commit fixes that by no longer generating an entry point, and renaming index.es.d.ts to index.d.ts in the built files.

In the same commit I also move the declaration-related configuration files to the subfolder to make the root a little cleaner

api-extractor.json → scripts/build/api-extractor.json

@@ -1,6 +1,12 @@
 {
   "$schema": "https://developer.microsoft.com/json-schemas/api-extractor/v7/api-extractor.schema.json",
 
+  "projectFolder": "../../",
+  "mainEntryPointFilePath": "<projectFolder>/es/index.d.ts",
+  "dtsRollup": {
+    "enabled": false
+  },
+
   "apiReport": {
     "enabled": false
   },
@@ -40,9 +46,5 @@
         "logLevel": "none"
       }
     }
-  },
-  "mainEntryPointFilePath": "es/index.d.ts",
-  "dtsRollup": {
-    "enabled": false
   }
 }

tsconfig.declaration.json → scripts/build/tsconfig.declaration.json

@@ -1,12 +1,12 @@
 {
-  "extends": "./tsconfig",
+  "extends": "../../tsconfig",
   "compilerOptions": {
     "stripInternal": true,
     "noEmit": false,
     "declaration": true,
     "emitDeclarationOnly": true,
     "allowJs": true
   },
-  "include": ["src", "./global.d.ts"],
-  "exclude": ["**/__tests__"]
+  "include": ["../../src", "../../global.d.ts"],
+  "exclude": ["../../**/__tests__"]
 }

scripts/build/types.js

@@ -2,13 +2,14 @@
 
 /* eslint-disable import/no-commonjs, no-console */
 
-const fs = require('fs');
 const path = require('path');
 const shell = require('shelljs');
 
 console.log(`Compiling definitions...`);
 
-shell.exec(`tsc -p tsconfig.declaration.json --outDir es/`);
+shell.exec(
+  `tsc -p ${path.join(__dirname, 'tsconfig.declaration.json')} --outDir es/`
+);
 
 // replace block ts-ignore comments with line ones to support TS < 3.9
 shell.sed(
@@ -18,36 +19,19 @@ shell.sed(
   path.join(__dirname, '../../es/**/*.d.ts')
 );
 
+// expose only the es entry point, not the umd entry point
+shell.mv(
+  path.join(__dirname, '../../es/index.es.d.ts'),
+  path.join(__dirname, '../../es/index.d.ts')
+);
+
 console.log();
 console.log(`Validating definitions...`);
 
 const { Extractor, ExtractorConfig } = require('@microsoft/api-extractor');
 
-const publicExports = [
-  // 'components' -> does not contains index.d.ts yet
-  'connectors',
-  // 'lib', -> Api extractor "import * as ___ from ___;" is not supported yet for local files
-  // 'middleware',
-  'helpers',
-  'types',
-  'widgets', //  -> It does not compile as WidgetFactory is not imported in all files
-  'lib/routers',
-];
-
-fs.writeFileSync(
-  path.join(__dirname, '../../', 'es/index.d.ts'),
-  [
-    `export { default } from './index.es';`,
-    ...publicExports
-      .map(publicExport => `./${publicExport}`)
-      .map(exportedFile => {
-        return `export * from '${exportedFile}';`;
-      }),
-  ].join('\r\n')
-);
-
 const extractorConfig = ExtractorConfig.loadFileAndPrepare(
-  path.resolve(path.join(__dirname, '../../', 'api-extractor.json'))
+  path.resolve(path.join(__dirname, 'api-extractor.json'))
 );
 
 const result = Extractor.invoke(extractorConfig, {