Add cancel option to exit recommend

src/main/java/florizz/command/RecommendCommand.java

@@ -56,12 +56,13 @@ public boolean execute(ArrayList<Bouquet> bouquetList, Ui ui) throws FlorizzExce
      * @param bouquetList List that contains all bouquets
      * @return The chosen valid bouquetName
      */
-    public String askBouquetName(Ui ui, ArrayList<Bouquet> bouquetList) {
+    public String askBouquetName(Ui ui, ArrayList<Bouquet> bouquetList) throws FlorizzException {
         boolean isValidName = false;
         String bouquetName = "placeHolder";
         ui.printAskBouquetName();
         while (!isValidName) {
             bouquetName = ui.getInput();
+            Parser.checkRecommendExitCondition(bouquetName);
             if (bouquetList.contains(new Bouquet(bouquetName))) {
                 System.out.println("Sorry a bouquet with this name already exists, please enter another name");
             } else {
@@ -91,18 +92,21 @@ private void addRandomFlowers(ArrayList<Flower> eligibleFlowers, Bouquet recomme
      * Asks user for occasion
      * @return Occasion enum
      */
-    private Flower.Occasion askOccasion(Ui ui) {
+    private Flower.Occasion askOccasion(Ui ui) throws FlorizzException{
         logger.entering(RecommendCommand.class.getName(), "askOccasion");
         boolean isValidFormat = false;
         boolean isValidOccasion = false;
         String occasionInput = "placeholder";
+        ui.printAskOccasion();
         while (!(isValidFormat && isValidOccasion)) {
-            occasionInput = ui.printAskOccasion();
+            occasionInput = ui.getInput();
+            Parser.checkRecommendExitCondition(occasionInput);
             isValidFormat = Parser.parseOccasion(occasionInput);
             isValidOccasion = Flower.isValidOccasion(occasionInput);
             // check if occasion is in our dictionary
             if (!isValidOccasion) {
-                System.out.println("This occasion does not exist.");
+                System.out.println("This occasion does not exist." +
+                        "Type 'cancel' if you would like to exit the recommendation page");
             }
         }
 
@@ -116,20 +120,23 @@ private Flower.Occasion askOccasion(Ui ui) {
      * @param eligibleFlowers list of flowers to choose from
      * @return Colour enum
      */
-    private Flower.Colour askColour(Ui ui, ArrayList<Flower> eligibleFlowers) {
+    private Flower.Colour askColour(Ui ui, ArrayList<Flower> eligibleFlowers) throws FlorizzException{
         assert !eligibleFlowers.isEmpty() : "Eligible flowers should not be empty";
         logger.entering(RecommendCommand.class.getName(), "askColour");
         String colourInput = "placeHolder";
         boolean isValidFormat = false;
         boolean isValidColour = false;
+        ui.printAskColour(eligibleFlowers);
         while (!(isValidColour && isValidFormat)) {
-            colourInput = ui.printAskColour(eligibleFlowers);
+            colourInput = ui.getInput();
+            Parser.checkRecommendExitCondition(colourInput);
             isValidFormat = Parser.parseColour(colourInput);
             isValidColour = Flower.isValidColour(colourInput);
 
             // check if colour is in our dictionary
             if (!isValidColour) {
-                System.out.println("This colour does not exist.");
+                System.out.println("This colour does not exist. " +
+                        "Type 'cancel' if you would like to exit the recommendation page");
             }
         }
 
@@ -144,7 +151,7 @@ private void askSaveBouquet(Ui ui, ArrayList<Bouquet> bouquetList,
         boolean isValidFormat = false;
         boolean isValidInput = false;
         while (!(isValidInput && isValidFormat)) {
-            saveInput = ui.printAskSaveBouquet(recommendedBouquet);
+            saveInput = ui.printAskSaveBouquet(recommendedBouquet).toLowerCase();
             isValidFormat = Parser.parseSaveBouquet(saveInput);
             isValidInput = (saveInput.equalsIgnoreCase("yes") || saveInput.equalsIgnoreCase("no"));
         }

src/main/java/florizz/core/Parser.java

@@ -340,4 +340,15 @@ public static boolean parseSaveBouquet(String argument) {
 
         return true;
     }
+
+    /**
+     * Checks if the user has entered the exit word for the recommend page
+     * @param input Input from the user
+     * @throws FlorizzException Thrown when the user has entered the exit word
+     */
+    public static void checkRecommendExitCondition(String input) throws FlorizzException{
+        if (input.equalsIgnoreCase("cancel")) {
+            throw new FlorizzException("Leaving recommend");
+        }
+    }
 }

src/main/java/florizz/core/Ui.java

@@ -340,25 +340,27 @@ public void printIOError() {
 
     /**
      * ask user for occasion input
-     * @return String of occasion input
      */
-    public String printAskOccasion() {
+    public void printAskOccasion() {
         System.out.println("For what occasion are you buying flowers for?");
         this.printAllOccasions();
-        return inputScanner.nextLine();
+        System.out.println("Type 'cancel' if you would like to exit the recommendation page");
     }
 
+    /**
+     * Prints prompt to ask user to input bouquet name for recommended bouquet
+     */
     public void printAskBouquetName() {
         System.out.println("Great we managed to find some flowers for you!");
         System.out.println("Before we carry on what would you like to call your bouquet?");
+        System.out.println("Note: please take note 'cancel' cannot be used as a  bouquet name");
     }
 
     /**
      * ask user for colour input
      * @param eligibleFlowers list of flowers that are eligible for the occasion
-     * @return String of colour input
      */
-    public String printAskColour(ArrayList<Flower> eligibleFlowers) {
+    public void printAskColour(ArrayList<Flower> eligibleFlowers) {
         System.out.println("What colour would you like your bouquets to be?");
 
         // print all available colours in a given array list
@@ -373,8 +375,8 @@ public String printAskColour(ArrayList<Flower> eligibleFlowers) {
         for (String colour : colourList){
             System.out.println("- " + colour);
         }
+        System.out.println("Type 'cancel' if you would like to exit the recommendation page");
         printBreakLine();
-        return inputScanner.nextLine();
     }
 
     public String printAskSaveBouquet(Bouquet recommendedBouquet) {