Bug fix - set-genre feature loop does not continue when a wrong input…

… is entered

src/main/java/seedu/bookbuddy/parser/parsercommands/parsegenre/InputLooper.java

@@ -6,6 +6,7 @@
 import seedu.bookbuddy.booklist.BookList;
 
 import java.io.IOException;
+import java.util.Objects;
 import java.util.Scanner;
 
 //@@author yeozongyao
@@ -25,10 +26,10 @@ public String inputLooper(String input, Scanner scanner, BookList books) throws
         while (input == null) {
             try {
                 input = handleInitialInput(scanner);
-                if (input == null) {
+                if (Objects.equals(input, "exit_now")) {
                     return null;  // Break out of the loop if input is null (exit command was used)
                 }
-                if (input.isEmpty()) {
+                if (input == null) {
                     continue;  // If input is empty, continue to the next iteration of the loop
                 }
                 input = processSelection(input, scanner, books);
@@ -81,16 +82,22 @@ private String handleInitialInput(Scanner scanner) throws InvalidInputException,
             String newInput = scanner.nextLine().trim();
             Integer indentationValue = 1;
             if (handleExitCommands(newInput, indentationValue)) {
-                return null;
+                return "exit_now";
             }
 
             String[] parts = newInput.split("\\s+");
             if (parts.length == 1 && isValidNumber(parts[0])) {
                 return newInput;
             }
 
-            throw new InvalidInputException(newInput + " is an invalid input. Please enter a " +
-                    "valid number or type 'exit' to cancel or 'bye' to exit the programme.");
+            try {
+                throw new InvalidInputException(newInput+ " is an invalid selection. Please enter a " +
+                        "valid number or type 'exit' to go back");
+            } catch (InvalidInputException e) {
+                System.out.println(newInput + " is not a valid integer man.. try again.. or 'exit' to go back");
+                Ui.printSingleIndentation();
+                return null;
+            }
         }
     }
 
@@ -167,8 +174,21 @@ String processSelection(String newInput, Scanner scanner, BookList books)
         if (selection > 0 && selection <= books.genreList.getAvailableGenres().size()) {
             return books.genreList.getAvailableGenres().get(selection - 1);
         }
-        throw new InvalidInputException(selection + " is an invalid selection. Please enter a " +
-                "valid number or type 'exit' to cancel or 'bye' to exit the programme.");
+
+        if (selection > books.genreList.getAvailableGenres().size() + 1) {
+            System.out.println("That's not within the options man... try again.. or 'exit' to go back " +
+                    "or 'bye' to close program");
+            Ui.printSingleIndentation();
+            return null;
+        }
+        try {
+            throw new InvalidInputException(selection + " is an invalid selection. Please enter a " +
+                    "valid number or type 'exit' to go back");
+        } catch (InvalidInputException e) {
+            System.out.println(selection + " is not a valid integer man.. try again.. or 'exit' to go back");
+            Ui.printSingleIndentation();
+            return null;
+        }
     }
 
 

src/main/java/seedu/bookbuddy/parser/parsercommands/parsegenre/ParserGenre.java

@@ -57,7 +57,7 @@ static void parseSetGenre(BookList books, String[] inputArray) throws IOExceptio
     private static void multiStepSetGenre(BookList books, int index) throws IOException {
         NewGenreModifier.genreSelectionPrinter(books);
         Ui.printSingleIndentation();
-        System.out.print("Enter the number for the desired genre, or add a new one:\n");
+        System.out.print("Enter the number for the desired genre, or add a new one, or 'exit' to go back:\n");
         Ui.printSingleIndentation();
         Scanner scanner = new Scanner(System.in);
         InputLooper looper = new InputLooper();

src/main/java/seedu/bookbuddy/parser/parservalidation/Exceptions.java

@@ -37,6 +37,7 @@ public static void handleException(Exception e, String command, String[] inputAr
                     new Object[]{command, e.getMessage()});
             System.out.println("An unexpected error occurred while executing " + command
                     + ". Please contact support.");
+            System.out.println(e.getMessage());
         }
     }
 }