Creating notifications

src/controllers/notificationsController.ts

@@ -0,0 +1,96 @@
+import { Request, Response } from 'express';
+import Notification from '../database/models/notification';
+import User from '../database/models/user';
+import { sendInternalErrorResponse, validateFields } from '../validations';
+import logger from '../logs/config';
+import EventEmitter from 'node:events';
+import Role from '../database/models/role';
+
+Role.afterCreate((role, options) => {
+  try {
+    console.log('Role was created successfully', role);
+    // Any additional logic you want to execute after a Role is created
+  } catch (error) {
+    console.error('Error occurred after creating Role:', error);
+  }
+});
+
+// const eventEmitter = new EventEmitter();
+// const getNotifications = async (req:Request, res:Response) => {
+//     const { userId } = req.params;
+//     const userNotifications = await User.findOne()
+
+// const notifications = await Notification.findAll()
+// }
+// const getAllnotifications = async (req: Request, res: Response) => {
+//   try {
+//     const notifications = await Notification.findAll();
+//     if (!notifications) {
+//       res.status(404).json({ ok: false, message: 'Notifications could not be found' });
+//       return;
+//     }
+//     res.status(200).json({ ok: true, data: notifications });
+//   } catch (error) {
+//     res.status(404).json({ ok: false, message: 'Notifications could not be found' });
+//   }
+// };
+// const createNotifications = async (req: Request, res: Response) => {
+//   try {
+//     const { message, isRead } = req.body;
+//     const missingFields = validateFields(req, ['message', 'isRead']);
+//     if (missingFields.length !== 0) {
+//       logger.error(`Missing required fields: ${missingFields.join(', ')}`);
+//       res.status(400).json({
+//         ok: false,
+//         message: `Missing required fields: ${missingFields.join(', ')}.`,
+//       });
+//       return;
+//     }
+//     const notification = await Notification.create({ message, isRead });
+
+//     if (!notification) {
+//       throw new Error('Notification could not be created successfully');
+//     }
+
+//     res.status(201).json({
+//       ok: true,
+//       data: notification,
+//     });
+//   } catch (error) {
+//     logger.error('Notification could not be created', error);
+//     sendInternalErrorResponse(res, error);
+//     return;
+//   }
+// };
+
+// // const eventEmitter.emit
+
+// //CREATE AN EVENT EMMITER IN YOUR PRODUCT CONTROLLERS WHICH USES HOOKS [AFTERUPDATE, AFTERCREATE].
+// //THEN THE EVEN GET CAPTURED IN YOUR NOTIFICATION CONTROLLERS,
+// //ONCE CAPTURED, THE CONTROLLER CREATEA NOTIFICATION AND SENDS IT VIA EMAIL, AND THEN RETURN A RESPONSE THAT INCLUDES THAT NOT.
+// //THEN THERE WILL BE ONE GET ROUTE TO WORK ON FRONTEND
+// //ALSO ANOTHER DELETE ROUTE TO DELETE THE NOTIFICATIONS FROM THE DATABASE
+
+// // Role.afterCreate(async product => {
+// //   const { id, name } = product;
+// //   //HERE, FIND THE PRODUCTS ID AND NAME TO ASSOCIATE WITH THE NOTIFICATION SENT
+// //   const notification = await Notification.create({
+// //     message: `Product ${name} created successfully`,
+// //     isRead: false,
+// //   });
+// // });
+// // Role.afterUpdate(async product => {
+// //   const { id, name } = product;
+// //   const notification = await Notification.create({
+// //     message: `Product ${name} was updated successfully!`,
+// //     isRead: false,
+// //   });
+// // });
+
+// // Role.afterDestroy(async product => {
+// //   const { id, name } = product;
+// //   const notification = await Notification.create({
+// //     message: `Product named ${name} was deleted successfully!`,
+// //     isRead: false,
+// //   });
+// // });

src/database/migrations/20240502174714-create-notification.js

@@ -0,0 +1,31 @@
+'use strict';
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('Notifications', {
+      id: {
+        allowNull: false,
+        autoIncrement: true,
+        primaryKey: true,
+        type: Sequelize.INTEGER,
+      },
+      message: {
+        type: Sequelize.STRING,
+      },
+      read: {
+        type: Sequelize.BOOLEAN,
+      },
+      createdAt: {
+        allowNull: false,
+        type: Sequelize.DATE,
+      },
+      updatedAt: {
+        allowNull: false,
+        type: Sequelize.DATE,
+      },
+    });
+  },
+  async down(queryInterface, Sequelize) {
+    await queryInterface.dropTable('Notifications');
+  },
+};

src/database/models/notification.ts

@@ -0,0 +1,45 @@
+import { Model, Optional, DataTypes, UUIDV4 } from 'sequelize';
+import sequelize from './index';
+import User from './user';
+export interface NotificationAttributes {
+  id: string;
+  message: string;
+  isRead: boolean;
+}
+
+export interface NotificationCreationAttributes extends Optional<NotificationAttributes, 'id'> {}
+
+class Notification extends Model<NotificationAttributes, NotificationCreationAttributes> {
+  public id!: string;
+  public message!: string;
+  public isRead!: boolean;
+  public readonly createdAt: Date | undefined;
+  public readonly updatedAt: Date | undefined;
+}
+Notification.init(
+  {
+    id: {
+      type: DataTypes.UUID,
+      defaultValue: UUIDV4,
+      primaryKey: true,
+      allowNull: false,
+      unique: true,
+    },
+    message: {
+      type: DataTypes.STRING,
+      allowNull: false,
+    },
+    isRead: {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+    },
+  },
+  {
+    sequelize: sequelize,
+    timestamps: true,
+  }
+);
+User.hasMany(Notification);
+Notification.belongsTo(User);
+
+export default Notification;

src/helpers/send-email.ts

@@ -142,6 +142,25 @@ export const sendEmail = async (type: string, data: IData) => {
         mailOptions.subject = 'Reset password';
         mailOptions.html = mailGenerator.generate(email);
         break;
+      case 'added_product_notification':
+        email = {
+          body: {
+            name: data.name,
+            intro: `Your product has been added successfully!`,
+            action: {
+              instructions: 'To view your product on platform, Click here:',
+              button: {
+                color: '#22BC66',
+                text: 'View your product',
+                link: 'https://e-commerce-mavericks.com/:id/products/:productID',
+              },
+            },
+            outro: 'Thank you for working with us. If you need any help, please free to contact us!',
+          },
+        };
+        mailOptions.subject = 'Product added successfully';
+        mailOptions.html = mailGenerator.generate(email);
+        break;
     }
     const info = await transporter.sendMail(mailOptions);
     logger.info(info);

src/helpers/sendNotifications.ts

@@ -0,0 +1,20 @@
+import { sendEmail } from './send-email';
+let product: any;
+interface Product {
+  id: string;
+  name: string;
+}
+interface User {
+  name: string;
+  email: string;
+}
+
+const sendNotifications = async (product: Product, user: User) => {
+  sendEmail('added_product_notification', user);
+
+  return {
+    message: `Your product,${product.name} was added successfully`,
+    productId: product.id,
+    link: 'https://dummy productlink.com',
+  };
+};