feat: Add Console Input/Output Mode #1

zaina-e · 2025-10-11T13:46:25Z

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greptile-apps

Greptile Overview

Greptile Summary

This PR adds a console input/output mode to the Atbash cipher demo application, transforming it from a file-based command-line utility into an interactive menu-driven application. The changes introduce string-based encryption and decryption methods (encryptString and decryptString) in both the Encryption and Decryption classes, allowing users to process text directly without file I/O operations. The Main class has been completely refactored from handling hardcoded file paths to providing a persistent menu system where users can choose between file operations, testing, or direct string processing.

The console mode feature enables users to type text directly and immediately see both the encrypted and decrypted results, making the cipher utility more accessible for quick testing and demonstration purposes. This change modernizes the application by supporting both traditional file-based workflows and new interactive console-based operations, removing the dependency on specific file system configurations that existed in the original implementation.

Important Files Changed

Changed Files

Filename	Score	Overview
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java	2/5	Removed file-based encryption method and added string-based encryption, creating breaking changes
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java	2/5	Removed file-based decryption method and replaced with string-based decryption functionality
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java	2/5	Refactored from single-use CLI to menu-driven application with console mode, but has resource leaks

Confidence score: 2/5

This PR introduces breaking changes by removing existing functionality and has multiple technical issues that could cause problems
Score reflects removal of file-based methods without replacement, resource leaks with unclosed Scanner objects, misleading comments about non-existent methods, and potential runtime exceptions from missing method dependencies
Pay close attention to all three files - Main.java needs Scanner resource management fixes, while Encryption.java and Decryption.java need their file-based methods restored or proper documentation updates

Sequence Diagram

sequenceDiagram
    participant User
    participant Main
    participant Scanner
    participant Encryption
    participant Decryption
    participant Mapping

    User->>Main: "Run application"
    Main->>Main: "runMenu()"
    Main->>User: "Display menu options"
    User->>Scanner: "Enter '4' (Console Mode)"
    Scanner->>Main: "choice = '4'"
    Main->>Main: "handleConsoleMode(scanner)"
    Main->>User: "Enter string to process:"
    User->>Scanner: "Input message string"
    Scanner->>Main: "input string"
    Main->>Main: "Validate input (not null/empty)"
    Main->>Encryption: "encryptString(input)"
    Encryption->>Mapping: "applyAtbashCipher(message)"
    Mapping->>Encryption: "encrypted string"
    Encryption->>Main: "encrypted string"
    Main->>Decryption: "decryptString(encrypted)"
    Decryption->>Mapping: "applyAtbashCipher(message)"
    Mapping->>Decryption: "decrypted string"
    Decryption->>Main: "decrypted string"
    Main->>User: "Display Original, Encrypted, Decrypted"

_{3 files reviewed, 7 comments}

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greptile-apps · 2025-10-11T13:47:15Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java

-        fileHandle.writeFile(encryptedData, FillB);
-        // it is calld Savefill from handler use for reuslt to fillb
+
+    // Assume existing file-based methods like encryptFile() are here


logic: Comment claims file-based methods should exist but they were completely removed from this class

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java Line: 6:6 Comment: **logic:** Comment claims file-based methods should exist but they were completely removed from this class How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:16Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java

@@ -1,20 +1,19 @@
 package com.example;

 import java.io.IOException;


style: IOException import is no longer needed since file operations were removed

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java Line: 3:3 Comment: **style:** IOException import is no longer needed since file operations were removed How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:16Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java

+     * @return The Atbash-encoded string.
+     */
+    public static String encryptString(String message) {
+


style: Extra blank line should be removed for consistent formatting

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java Line: 16:16 Comment: **style:** Extra blank line should be removed for consistent formatting How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:17Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java

-        fileHandle.writeFile(decryptedData, FillB);
-        // Save the decrypted data to FillB
+
+    // Assume existing file-based methods like decryptFile() are here


logic: Comment claims file-based methods exist but they're missing from implementation. Either add the methods or remove misleading comment.

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java Line: 7:7 Comment: **logic:** Comment claims file-based methods exist but they're missing from implementation. Either add the methods or remove misleading comment. How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:17Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java

+    public static String decryptString(String message) {
+
+        return Mapping.applyAtbashCipher(message);
    }


logic: Removing the original DecryptonFill() method is a breaking change. Consider keeping both file-based and string-based methods for backward compatibility.

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java Line: 16:19 Comment: **logic:** Removing the original `DecryptonFill()` method is a breaking change. Consider keeping both file-based and string-based methods for backward compatibility. How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:18Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java

@@ -1,85 +1,76 @@
-package com.example;
-
 import java.util.Scanner;


syntax: Missing package declaration - should be package com.example;

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java Line: 1:1 Comment: **syntax:** Missing package declaration - should be `package com.example;` How can I resolve this? If you propose a fix, please make it concise.

greptile-apps · 2025-10-11T13:47:18Z

AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java

+            Scanner scanner = new Scanner(System.in);
+            String choice = scanner.nextLine().trim();


logic: Scanner resource leak - creating new Scanner in each loop iteration without closing. Move Scanner creation outside the loop.

Prompt To Fix With AI

This is a comment left during a code review. Path: AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java Line: 23:24 Comment: **logic:** Scanner resource leak - creating new Scanner in each loop iteration without closing. Move Scanner creation outside the loop. How can I resolve this? If you propose a fix, please make it concise.

greptile-apps

Greptile Overview

Greptile Summary

This pull request implements a console-based input/output mode for the Atbash cipher application, transforming it from a purely file-based utility to one that supports direct string processing. The main changes involve refactoring the Encryption.java and Decryption.java classes to add string-based methods (encryptString() and decryptString()), and updating Main.java to include a new "Console Mode" option in the user interface.

The console mode allows users to encrypt or decrypt text directly without needing to work with files, making the utility more accessible for quick operations. The menu system was also modernized from a single-character input system to a numbered menu for better usability. This change aligns with modern CLI tool design patterns where users can choose between file-based batch operations and interactive console input based on their needs.

Changed Files

Filename	Score	Overview
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Encryption.java	3/5	Added string-based encryption method while removing file-based functionality
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Decryption.java	3/5	Added string-based decryption method while removing file-based functionality
AtbashCipher/cipher2/cipher2/demo/src/main/java/com/example/Main.java	2/5	Added console mode with numbered menu system but has syntax and resource management issues

Confidence score: 3/5

This PR requires attention before merging due to breaking changes and incomplete implementation
Score reflects the removal of existing file-based functionality without proper replacement, missing package declarations, resource leaks, and misleading comments that don't match the actual implementation
Pay close attention to Main.java for syntax issues and all files for the incomplete transition from file-based to dual-mode functionality

Sequence Diagram

sequenceDiagram
    participant User
    participant Main
    participant Scanner
    participant Encryption
    participant Decryption
    participant Mapping

    User->>Main: "Run application"
    Main->>Scanner: "new Scanner(System.in)"
    Main->>User: "Display menu with Console Mode option"
    User->>Main: "Select option 4 (Console Mode)"
    Main->>Main: "handleConsoleMode(scanner)"
    Main->>User: "Enter string to process:"
    User->>Scanner: "Input string"
    Scanner->>Main: "Return input string"
    Main->>Main: "Validate input (not null/empty)"
    Main->>Encryption: "encryptString(input)"
    Encryption->>Mapping: "applyAtbashCipher(message)"
    Mapping-->>Encryption: "Return encrypted string"
    Encryption-->>Main: "Return encrypted string"
    Main->>Decryption: "decryptString(encrypted)"
    Decryption->>Mapping: "applyAtbashCipher(message)"
    Mapping-->>Decryption: "Return decrypted string"
    Decryption-->>Main: "Return decrypted string"
    Main->>User: "Display Original, Encrypted, Decrypted strings"

_{3 files reviewed, no comments}

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feat: Add Console Input/Output Mode

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		@@ -1,20 +1,19 @@
		package com.example;

		import java.io.IOException;

		@@ -1,85 +1,76 @@
		package com.example;

		import java.util.Scanner;

		Scanner scanner = new Scanner(System.in);
		String choice = scanner.nextLine().trim();

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Greptile Overview

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Important Files Changed

Confidence score: 2/5

Sequence Diagram

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Greptile Overview

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Confidence score: 3/5

Sequence Diagram

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