Merge pull request #234 from Araavinds/b-deleteReceipts

New command to delete receipts

src/main/java/executor/command/CommandReceiptDelete.java

@@ -0,0 +1,45 @@
+package executor.command;
+
+import duke.exception.DukeException;
+import interpreter.Parser;
+import storage.StorageManager;
+
+public class CommandReceiptDelete extends Command {
+    protected String userInput;
+
+    /**
+     * Constructor for CommandDeleteReceipt subCommand Class.
+     * @param userInput The user input from the CLI
+     */
+    public CommandReceiptDelete(String userInput) {
+        super();
+        this.userInput = userInput;
+        this.description = "Deletes the specific entry that the user wants to remove. \n"
+                + "FORMAT: deletereceipt <Index_of_Entry>";
+        this.commandType = CommandType.RECEIPTDELETE;
+    }
+
+
+    @Override
+    public void execute(StorageManager storageManager) {
+        String outputStr;
+        String integer = Parser.parseForPrimaryInput(this.commandType, userInput);
+        try {
+            int index = Integer.parseInt(integer) - 1;
+            outputStr = ("Receipt '"
+                    + (index + 1)
+                    + ") "
+                    + "Receipt at index"
+                    + index
+                    + " "
+                    + "'has been deleted. \n");
+            storageManager.deleteReceiptByIndex(index);
+        } catch (DukeException e) {
+            this.infoCapsule.setCodeError();
+            this.infoCapsule.setOutputStr(e.getMessage());
+            return;
+        }
+        this.infoCapsule.setCodeToast();
+        this.infoCapsule.setOutputStr(outputStr);
+    }
+}

src/main/java/executor/command/CommandType.java

@@ -7,6 +7,7 @@ public enum CommandType {
     BLANK(CommandBlank.class),
     FIND(CommandFind.class),
     DELETE(CommandDelete.class),
+    RECEIPTDELETE(CommandReceiptDelete.class),
     DONE(CommandMarkDone.class),
     QUEUE(CommandQueue.class),
     VIEWSCHEDULE(CommandSchedule.class),

src/main/java/storage/StorageManager.java

@@ -19,6 +19,7 @@ public class StorageManager {
     private Wallet wallet = new Wallet();
     private TaskList taskList = new TaskList();
 
+
     /**
      * Constructor for the StorageManager Object.
      * @param taskPath String detailing the filepath to the stored Task Data
@@ -148,6 +149,21 @@ public void deleteTaskByIndex(int index) throws DukeException {
         }
     }
 
+    /**
+     * Deletes Receipt by Index in ReceiptTracker Object.
+     * Used in CommandDeleteReceipt
+     * @param index int of Receipt to be deleted
+     * @throws DukeException Error occured when trying to delete Receipt
+     */
+    public void deleteReceiptByIndex(int index) throws DukeException {
+        try {
+            this.wallet.getReceipts().deleteReceiptsByIndex(index);
+        } catch (Exception e) {
+            throw new DukeException("Invalid 'receiptdelete' statement. "
+            + "Please indicate the index of the receipt you wish to delete.\n");
+        }
+    }
+
     /**
      * Gets the taskName property of a Task by its index in a TaskList.
      * Used in CommandDelete.
@@ -163,6 +179,7 @@ public String getTaskNameByIndex(int index) throws DukeException {
         }
     }
 
+
     /**
      * Gets the balance property of the Wallet Object.
      * @return Double representing the balance property of the Wallet Object.

src/main/java/ui/ReceiptTracker.java

@@ -196,6 +196,15 @@ public Double getTotalCashSpent() {
         return totalCashSpent;
     }
 
+    /**
+     * Deletes a receipt via its index.
+     *
+     * @param index Index of the receipt to be deleted
+     */
+    public void deleteReceiptsByIndex(int index) {
+        this.remove(index);
+    }
+
     /**
      * Prints all the receipts stored in the ReceiptTracker Object.
      * @return String containing all the receipts to be printed to the User