structured the logic.js

whatsapp-web.js/src/businessLogic/logic.js

@@ -1,44 +1,275 @@
 const { Website } = require("../models/website");
 const { data } = require("../models/data");
 const { Product } = require('../models/product');
+const { User } = require('../models/user');
 
-module.exports.onWG = () => {
+/**
-    console.log('hello world');
+ * user to be sent the message to
+ * @type {User}
+ */
+let user = null;
+
+/**
+ * input to be used in the function if exists
+ * @type {string}
+ */
+let input = null;
+
+const addProduct = (id) => {
+
+    // Create a product and select it.
+    //At this point all the product properties will be default
+    var product = new Product({id : id});
+    // Add a product to the selected website.
+    user.getSelectedWebsite().addProduct(product);
 }
 
-module.exports.onCreate = (id, companyName) => {
+const checkSelectedWebsiteExist= () => {
 
-    //get the user 
+    if(user.getSelectedWebsite() == null)
-    let user = data.getUser(id);
-    if(user == undefined)
     {
-        data.addUser(id);
+        return [
-        user = data.getUser(id);
+            `A website should be selected or created 
+            To create website, please use the following command : `,
+            `*wg create <company-name>*`,
+
+        ];
     }
 
-    //add the website with the company name
+    return '';
-    user.addWebsite(new Website(companyName));
 }
-module.exports.addProduct = (id,website) => {
 
-    if(id==null)
+const checkSelectedProductExist = () => {
+    if(user.getSelectedWebsite().getSelectedProduct() == null)
     {
-        // Setting up the product id if not given
+        return [
-        id = Math.floor((Math.random() * 100000) + 1);
+            `A product should be created or selected`
-        while(website.products.isData(id))// This is will check if the generated id is already used
+        ]
+    }
+    
+    return '';
+    
+}
+
+module.exports.setUser = (id) =>{
+
+    if(!data.isUser(id))
+    {
+        data.addUser(id);
+    }
+    user = data.getUser(id)
+};
+
+module.exports.setInput= (value) => {
+    input = value;
+}
+
+
+module.exports.onCreateProduct = () => {
+
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        //add the product
+        addProduct(input['id']);
+        
+        let selectedId = user.getSelectedWebsite().getSelectedProduct().id;
+    
+        //mesage to be sent to the user
+        let message = [
+            `The product has been created with the id : ${selectedId}`  ,
+            `
+            This product has been selected. 
+            Now you can make change to the product with the following commands : 
+            1. wg product info 
+            2. wg product name <product-name> 
+            3. wg product cost <product-cost> 
+            4. wg product desc <product-desc> 
+            5. wg product image <product-image>
+            `
+        ];
+        
+        return message;
+    }
+    return check;
+}
+
+module.exports.onDeleteProduct = () => {
+
+    
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+    
+        if(!user.getSelectedWebsite().deleteProduct(input['id']))
         {
-            id = Math.floor((Math.random() * 100000) + 1);
+            return [
+                `No product with the given id`
+            ];
+        }
+    
+        return [
+            `The product has been deleted with the id : ` + input['id']
+        ];
+    
+    }
+
+    return check;
+}
+
+module.exports.onSelectProduct = () => { 
+
+
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        // Find the product with the given id
+        if(!user.getSelectedWebsite().selectProduct(input['id']))
+        {
+            return [
+                `There was no product with the given id. Use the following command to get the list of all id's`,
+                `wg product all`
+            ];
+        }
+    
+        return [
+            `The product has been selected with the id : ${user.getSelectedWebsite().getSelectedProduct()}` ,
+            `
+            This product has been selected. 
+            Now you can make change to the product with the following commands : 
+            1. wg product info 
+            2. wg product name <product-name> 
+            3. wg product cost <product-cost> 
+            4. wg product desc <product-desc> 
+            5. wg product image <product-image>
+            `
+        ];
+    }
+
+    return check;
+}
+
+module.exports.onGetAllProducts = () => {
+
+    
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let message = [
+            'Your website has following products: '
+        ];
+    
+        for(let p of user.getSelectedWebsite().getAllProduct())
+        {
+            let m = 'Product id: ' + p.id + '\nProduct Name : ' + p.name + '\nProduct description : '+ p.desc + '\nProduct Cost: ' + p.cost + '\nProduct Image : '+ p.image;
+            message.push(m);
+        }
+    
+        return message;    
+    }
+
+    return check;
+     
+}
+
+module.exports.onGetProductInfo = () => {
+    
+    
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let check = checkSelectedProductExist();
+        if(check)
+        {
+            let selected_product = user.getSelectedWebsite().getSelectedProduct();
+            return [
+                `
+                Product id: ${selected_product.id}
+                Product Name : ${selected_product.name}
+                Product description : ${selected_product.desc }
+                Product Cost: ${selected_product.cost}
+                Product Image : ${selected_product.image}
+                `
+            ];
+        }
+    }
+    return check;
+
+
+}
+
+module.exports.onSetProductName = () => {
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let check = checkSelectedProductExist();
+        if(check)
+        {
+            let selected_product = user.getSelectedWebsite().getSelectedProduct();
+            selected_product.setName(input['product-name']);
+            let message = [
+                'The product name has been set to  '+ selected_product.name
+            ];
+            return message;
+        }
+    }
+    
+    return check;
+}
+
+module.exports.onSetProductCost = () => {
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let check = checkSelectedProductExist();
+        if(check)
+        {
+            let selected_product = user.getSelectedWebsite().getSelectedProduct();
+            selected_product.setCost(input['product-cost']);
+            let message = [
+                'The product cost has been set to  '+ selected_product.cost
+                ];
+            return message;
         }
     }
 
-    // Create a product and select it. At this point all the product properties will be default including the id will be empty
+    return check;
-    var product = new Product();
-    product.setId(id);
-    // Add a product to the selected website. We will add the id based on the count of the products on the website
-    website.addProduct(product);
-    return product;
 }
-module.exports.deleteProduct = (id,website) => {
 
-    return website.deleteProduct(id);
+module.exports.onSetProductDesc = () => {
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let check = checkSelectedProductExist();
+        if(check)
+        {
+            let selected_product = user.getSelectedWebsite().getSelectedProduct();
+            selected_product.setDesc(input['product-desc']);
+            let message = [
+                'The product cost has been set to  '+ selected_product.desc
+            ];
+            return message;
+        }
+    }
+    return check;
 }
+
+module.exports.onSetProductImage = () => {
+    let check = checkSelectedWebsiteExist();
+    if(check)
+    {
+        let check = checkSelectedProductExist();
+        if(check)
+        {
+            let selected_product = user.getSelectedWebsite().getSelectedProduct();
+            selected_product.setImage(input['product-image']);
+            let message = [
+                'The product cost has been set to  '+ selected_product.image
+            ];
+            return message;
+        }
+    }
+    return check;
+}
+
+

whatsapp-web.js/src/models/user.js

@@ -34,6 +34,9 @@ class User{
         return this.websites.selectData(companyName);
     }
 
+    /**
+     * @returns {Website}
+     */
     getSelectedWebsite(){
         return this.websites.selectedData;
     }

whatsapp-web.js/src/models/website.js

@@ -39,7 +39,7 @@ class Website {
 
     /**
      * 
-     * @returns {[]} 
+     * returns all the products in the website
      */
     getAllProduct(){
         return this.products.getAllData().values();
@@ -58,6 +58,9 @@ class Website {
         return this.products.selectData(productId);
     }
 
+    /**
+     * @returns {Product}
+     */
     getSelectedProduct()
     {
         return this.products.selectedData;

whatsapp-web.js/src/userInteraction/messages.js

@@ -31,231 +31,64 @@ const commands = [
     new Command({
         //User command
         command: `wg product new <id>`,
-
         //function to be executed
-        callback : (input) => {  
+        callback : () =>  logic.onCreateProduct()
-
-            if(selected_website==null)
-            {
-                let message = [
-                    `A website should be selected or created before creating a product `
-                 ];
-                return message;
-            }
-            selected_product= logic.addProduct(input['id'],selected_website);
-            //mesage to be sent to the user
-            let message = [
-                `The product has been created with the id : ` + selected_product.id ,
-                `This product has been selected . \nNow you can make change to the product with the following commands : \n1. wg product info \n2. wg product name <product-name> \n3. wg product cost <product-cost> \n4. wg product desc <product-desc> \n5. wg product image <product-image>`
-            ];
-            
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product delete <id>`,
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onDeleteProduct()
-
-            if(selected_website==null)
-            {
-                let message = [
-                    `A website should be selected or created before deleting  a product `
-                 ];
-                return message;
-            }
-
-            if(logic.deleteProduct(input['id'],selected_website) == false)
-            {
-                let message = [
-                    `No product with the given id`
-                ];
-                return message;
-            }
-
-            let message = [
-                `The product has been deleted with the id : ` + id 
-            ];
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product select <id>`,
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onSelectProduct()
-
-            if(selected_website==null)
-            {
-                let message = [
-                    `A website should be selected or created before selecting a product `
-                 ];
-                return message;
-            }
-            // Find the product with the given id
-            selected_product = selected_website.getProduct(input['id']);
-            if(selected_product == null)
-            {
-                logic.addProduct(input['id'],selected_website);
-                selected_product = selected_website.getProduct(input['id']);
-                let message = [
-                    `There was no product with the give id. So a new product was created and selected with the id : ` + selected_product.id ,
-                    `Now you can make change to the product with the following commands : \n1. wg product info \n2. wg product name <product-name> \n3. wg product cost <product-cost> \n4. wg product desc <product-desc> \n5. wg product image <product-image>`
-                ];
-                
-                return message;
-            }
-
-            let message = [
-                `The product has been selected with the id : ` + selected_product.id ,
-                'Now you can make change to the product with the following commands : \n1. wg product info \n2. wg product name <product-name> \n3. wg product cost <product-cost> \n4. wg product desc <product-desc> \n5. wg product image <product-image>'
-
-            ];
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product all`,
 
         //function to be executed
-        callback : () => {  
+        callback : () => logic.onGetAllProducts()
-
-            if(selected_website==null)
-            {
-                let message = [
-                    `A website should be selected or created `
-                 ];
-                return message;
-            }
-            let message = [
-                'Your website has following products: '
-            ];
-            for(let p of selected_website.getAllProduct())
-            {
-                let m = 'Product id: ' + p.id + '\nProduct Name : ' + p.name + '\nProduct description : '+ p.desc + '\nProduct Cost: ' + p.cost + '\nProduct Image : '+ p.image;
-                message.push(m);
-            }
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product info`,
 
         //function to be executed
-        callback : () => {  
+        callback : () => logic.onGetProductInfo()
-
-            if(selected_product == null)
-            {
-                let message = [
-                    `A product should be selected `
-                 ];
-                return message;
-            }
-            let message = [
-                'Product id: ' + selected_product.id,
-                'Product Name : ' + selected_product.name ,
-                'Product description : '+ selected_product.desc ,
-                'Product Cost: ' + selected_product.cost ,
-                'Product Image : '+ selected_product.image
-               ];
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product name <product-name>`,
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onSetProductName()
-
-            if(selected_product == null)
-            {
-                let message = [
-                    `A product should be selected `
-                 ];
-                return message;
-            }
-            selected_product.setName(input['product-name']);
-            let message = [
-                'The product name has been set to  '+ selected_product.name
-               ];
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: `wg product cost <product-cost>`,
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onSetProductCost()
-
-            if(selected_product == null)
-            {
-                let message = [
-                    `A product should be selected `
-                 ];
-                return message;
-            }
-            selected_product.setCost(input['product-cost']);
-            let message = [
-                'The product cost has been set to  '+ selected_product.cost
-               ];
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: 'wg product desc <product-desc>',
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onSetProductDesc()
-
-            if(selected_product == null)
-            {
-                let message = [
-                    `A product should be selected `
-                 ];
-                return message;
-            }
-            selected_product.setDesc(input['product-desc']);
-            let message = [
-                'The product description has been set to : '+ selected_product.desc
-               ];
-
-            return message;
-        }
     }),
     new Command({
         //User command
         command: 'wg product image <product-image>',
 
         //function to be executed
-        callback : (input) => {  
+        callback : () => logic.onSetProductImage()
-
-            if(selected_product == null)
-            {
-                let message = [
-                    `A product should be selected `
-                 ];
-                return message;
-            }
-            selected_product.setImage(input['product-image']);
-            let message = [
-                'The product image has been set to : '+ selected_product.image
-               ];
-
-            return message;
-        }
     }),
 ];
 
@@ -281,8 +114,12 @@ module.exports= onMessage = (message, client) => {
             if(command.requireInput){
                 input = command.getInput(message.body);
             }
+            
+            logic.setUser(message.id.remote);
+            logic.setInput(input);
+
+            let messageToBeSent = command.callback();
 
-            let messageToBeSent = command.callback(input);
             for (let msg of messageToBeSent)
             {
                 client.sendMessage(message.from, msg, new Object());