refactor the code for v4

Author: xr0master

package.json

@@ -1,17 +1,17 @@
 {
   "name": "@emailjs/nodejs",
   "version": "2.2.0",
-  "description": "EmailJS helps to send emails directly from your code. Official EmailJS SDK for NodeJS",
+  "description": "Official EmailJS SDK for NodeJS",
   "private": false,
   "author": "EmailJS",
   "contributors": [
     "Sergey Khomushin <[email protected]> (https://www.emailjs.com)"
   ],
   "homepage": "https://www.emailjs.com",
   "license": "BSD-3-Clause",
-  "main": "cjs/emailjs.js",
-  "types": "mjs/emailjs.d.ts",
-  "module": "mjs/emailjs.js",
+  "main": "cjs/index.js",
+  "types": "es/index.d.ts",
+  "module": "es/index.js",
   "repository": {
     "type": "git",
     "url": "https://github.com/emailjs-com/emailjs-nodejs.git"
@@ -21,8 +21,8 @@
   },
   "exports": {
     ".": {
-      "import": "./mjs/emailjs.js",
-      "require": "./cjs/emailjs.js"
+      "import": "./mjs/index.js",
+      "require": "./cjs/index.js"
     }
   },
   "engines": {

src/emailjs.spec.ts

@@ -0,0 +1,14 @@
+import type { StorageProvider } from './types/StorageProvider';
+import { EmailJSResponseStatus } from './models/EmailJSResponseStatus';
+import { init } from './methods/init/init';
+import { send } from './methods/send/send';
+
+export type { StorageProvider };
+
+export { init, send, EmailJSResponseStatus };
+
+export default {
+  init,
+  send,
+  EmailJSResponseStatus,
+};

src/emailjs.ts

@@ -0,0 +1,54 @@
+import { it, expect, describe, jest } from '@jest/globals';
+import { type RequestOptions } from 'https';
+import emailjs, { send, init, EmailJSResponseStatus } from './index';
+
+jest.mock('https', () => ({
+  ...jest.requireActual<typeof import('https')>('https'),
+  request: jest.fn((_: RequestOptions, cb: (res: any) => void) =>
+    cb({
+      on: (_: string, cb: (chunk: any) => void) => cb(Buffer.from('OK', 'utf8')),
+      statusCode: 200,
+    }),
+  ),
+  on: jest.fn(),
+  write: jest.fn(),
+  end: jest.fn(),
+}));
+
+it('should export necessary methods and models', () => {
+  expect(init).toBeDefined();
+  expect(send).toBeDefined();
+  expect(EmailJSResponseStatus).toBeDefined();
+});
+
+describe('send method', () => {
+  it('should call the init and the send method successfully', async () => {
+    emailjs.init({
+      publicKey: 'LC2JWGTestKeySomething',
+      privateKey: 'PrKeyTestKeySomething',
+    });
+
+    try {
+      const result = await emailjs.send('default_service', 'my_test_template');
+      expect(result).toEqual({ status: 200, text: 'OK' });
+    } catch (error) {
+      expect(error).toBeUndefined();
+    }
+  });
+
+  it('should call the init and the send method successfully as promise', () => {
+    emailjs.init({
+      publicKey: 'LC2JWGTestKeySomething',
+      privateKey: 'PrKeyTestKeySomething',
+    });
+
+    return emailjs.send('default_service', 'my_test_template').then(
+      (result) => {
+        expect(result).toEqual({ status: 200, text: 'OK' });
+      },
+      (error) => {
+        expect(error).toBeUndefined();
+      },
+    );
+  });
+});

src/index.ts

@@ -0,0 +1,44 @@
+import { it, expect, beforeEach } from '@jest/globals';
+
+import { init } from './init';
+import { store } from '../../store/store';
+
+beforeEach(() => {
+  store.origin = 'https://api.emailjs.com';
+  store.publicKey = undefined;
+  store.storageProvider = undefined;
+});
+
+it('should call the init method with empty options and get default values', () => {
+  init({});
+
+  expect(store).toEqual({
+    origin: 'api.emailjs.com',
+  });
+});
+
+it('should call the init method with custom options', () => {
+  init({
+    publicKey: 'C2JWGTestKeySomething',
+    privateKey: 'privateC2JWGTestKeySomething',
+    blockList: {
+      list: ['[email protected]'],
+    },
+    limitRate: {
+      throttle: 10000,
+    },
+  });
+
+  expect(store).toEqual({
+    origin: 'api.emailjs.com',
+    publicKey: 'C2JWGTestKeySomething',
+    privateKey: 'privateC2JWGTestKeySomething',
+    blockList: {
+      list: ['[email protected]'],
+    },
+    limitRate: {
+      throttle: 10000,
+    },
+    storageProvider: undefined,
+  });
+});

src/it.spec.ts

@@ -1,17 +1,18 @@
-import type { Options } from '../../types/Options.js';
-import { store } from '../../store/store.js';
-
-export interface InitOptions extends Options {
-  host?: string;
-}
+import { store } from '../../store/store';
+import type { Options } from '../../types/Options';
 
 /**
- * Initiation
- * @param {InitOptions} options - set emailjs options
+ * EmailJS global SDK config
+ * @param {object} options - the EmailJS global SDK config options
+ * @param {string} origin - the non-default EmailJS origin
  */
+export const init = (options: Options, origin: string = 'api.emailjs.com'): void => {
+  if (!options) return;
 
-export const init = (options: InitOptions): void => {
-  store._publicKey = options.publicKey;
-  store._privateKey = options.privateKey;
-  store._host = options.host || 'api.emailjs.com';
+  store.publicKey = options.publicKey;
+  store.privateKey = options.privateKey;
+  store.storageProvider = options.storageProvider;
+  store.blockList = options.blockList;
+  store.limitRate = options.limitRate;
+  store.origin = options.origin || origin;
 };