Update wallet.js

Author: KOSASIH

src/tokens/wallet.js

@@ -1,17 +1,22 @@
-// src/tokens/wallet.js
+// src/tokens/wallet.js - Advanced Wallet Module
+
+import axios from 'axios'; // For external API calls
+import { generateOTP, validateOTP } from './otpService'; // Import OTP service
 
 class Wallet {
     constructor() {
         this.balance = 0; // User's balance
         this.transactions = []; // Array to hold transaction history
         this.isBioSignalAuthenticated = false; // Flag for bio-signal authentication
+        this.isAuthenticated = false; // Flag for overall authentication
     }
 
     // Method to authenticate using traditional methods (e.g., password)
     authenticate(password) {
-        // Implement traditional authentication logic
         console.log("Authenticating with password...");
+        // Implement traditional authentication logic
         // Assume authentication is successful for this example
+        this.isAuthenticated = true;
         return true;
     }
 
@@ -51,10 +56,32 @@ class Wallet {
             throw new Error("User  must be authenticated to perform transactions.");
         }
 
-        this.balance += amount; // Update balance
-        this.transactions.push({ amount, timestamp: new Date() }); // Record transaction
-        console.log(`Transaction of ${amount} completed. New balance: ${this.balance}`);
-        return this.balance;
+        // Check for transaction limits (e.g., max transaction amount)
+        const maxTransactionLimit = 10000; // Example limit
+        if (amount > maxTransactionLimit) {
+            throw new Error(`Transaction amount exceeds the limit of ${maxTransactionLimit}.`);
+        }
+
+        // Simulate external API call to process the transaction
+        try {
+            const response = await axios.post('https://api.example.com/process-transaction', {
+                amount,
+                userId: this.getUser Id(), // Assume a method to get user ID
+            });
+
+            if (response.data.success) {
+                this.balance += amount; // Update balance
+                this.transactions.push({ amount, timestamp: new Date() }); // Record transaction
+                console.log(`Transaction of ${amount} completed. New balance: ${this.balance}`);
+                this.sendNotification(`Transaction of ${amount} completed successfully.`);
+                return this.balance;
+            } else {
+                throw new Error('Transaction processing failed.');
+            }
+        } catch (error) {
+            console.error('Error processing transaction:', error);
+            throw new Error('Transaction could not be completed.');
+        }
     }
 
     // Method to get transaction history
@@ -72,6 +99,29 @@ class Wallet {
     getBalance() {
         return this.balance;
     }
+
+    // Method to send notifications (mock implementation)
+    sendNotification(message) {
+        console.log(`Notification: ${message}`);
+        // Here you could integrate with a real notification service
+    }
+
+    // Method to generate and validate OTP for additional security
+    async generateAndValidateOTP(userInput) {
+        const otp = generateOTP(); // Generate OTP
+        console.log(`Your OTP is: ${otp}`); // In a real application, send this via SMS or email
+
+        const isValid = await validateOTP(userInput, otp);
+        if (!isValid) {
+            throw new Error("Invalid OTP.");
+        }
+        console.log("OTP validated successfully.");
+    }
+
+    // Mock method to get user ID (for demonstration purposes)
+    getUser Id() {
+        return 'user123'; // Replace with actual user ID retrieval logic
+    }
 }
 
 export default Wallet;