Add more exception handling

WindeTasks.txt

@@ -0,0 +1 @@
+T | O | something

src/main/java/commands/AddDeadline.java

@@ -2,8 +2,10 @@
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
 
 import exceptions.EmptyDescriptionException;
+import exceptions.InvalidDateFormatException;
 import tasks.Deadline;
 import windebot.History;
 import windebot.Reminder;
@@ -28,22 +30,27 @@ public class AddDeadline extends Command {
      */
 
     public boolean execute(String input, Reminder reminder, Ui ui, History history)
-            throws EmptyDescriptionException {
+            throws EmptyDescriptionException, InvalidDateFormatException {
         String[] command = input.split(" ", 2);
         String[] order = command[1].split(" /by ");
-        if (order.length == 2) {
-            DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
-            LocalDateTime deadline = LocalDateTime.parse(order[1], formatter);
-            Deadline deadlineTask = new Deadline(order[0], deadline);
-            reminder.addDeadline(deadlineTask);
-            ui.print("Got it. I've added this task:");
-            ui.print("    " + deadlineTask.toString());
-            ui.print("Now you have " + reminder.size() + " tasks in the list.");
-            history.save(reminder.getSchedule());
-        } else {
-            throw new EmptyDescriptionException("WHEN DEADLINE END!");
+        String taskDescription = order[0].trim();
+        try {
+            if (!(taskDescription.equals("")) && (order.length == 3)) {
+                DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
+                LocalDateTime deadline = LocalDateTime.parse(order[1], formatter);
+                Deadline deadlineTask = new Deadline(taskDescription, deadline);
+                reminder.addDeadline(deadlineTask);
+                ui.print("Got it. I've added this task:");
+                ui.print("    " + deadlineTask.toString());
+                ui.print("Now you have " + reminder.size() + " tasks in the list.");
+                history.save(reminder.getSchedule());
+            } else {
+                throw new EmptyDescriptionException("ADD THE CORRECT PARAMETERS!");
+            }
+            return true;
+        } catch (DateTimeParseException e) {
+            throw new InvalidDateFormatException("FOLLOW THE CORRECT DATE FORMAT: DD/MM/YYYY HH:MM");
         }
-        return true;
     }
 
     /**

src/main/java/commands/AddEvent.java

@@ -2,8 +2,10 @@
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
 
 import exceptions.EmptyDescriptionException;
+import exceptions.InvalidDateFormatException;
 import tasks.Event;
 import windebot.History;
 import windebot.Reminder;
@@ -29,25 +31,28 @@ public class AddEvent extends Command {
      */
 
     public boolean execute(String input, Reminder reminder, Ui ui, History history)
-            throws EmptyDescriptionException {
+            throws EmptyDescriptionException, InvalidDateFormatException {
         String[] command = input.split(" ", 2);
-        String[] order = command[1].split(" /from ");
-        if (order.length == 2) {
-            String[] fillerName = order[1].split(" /to ");
-            DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
-            DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("HH:mm");
-            LocalDateTime start = LocalDateTime.parse(fillerName[0], dateFormatter);
-            LocalDateTime end = LocalDateTime.parse(fillerName[1], dateFormatter);
-            Event eventTask = new Event(order[0], start, end);
-            reminder.addEvent(eventTask);
-            ui.print("Got it. I've added this task:");
-            ui.print("    " + eventTask.toString());
-            ui.print("Now you have " + reminder.size() + " tasks in the list.");
-            history.save(reminder.getSchedule());
-        } else {
-            throw new EmptyDescriptionException("WHEN EVENT DATE!");
+        String[] order = command[1].split(" /from | /to ");
+        String taskDescription = order[0].trim();
+        try {
+            if (!(taskDescription.equals("")) && (order.length == 3)) {
+                DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
+                LocalDateTime start = LocalDateTime.parse(order[1], dateFormatter);
+                LocalDateTime end = LocalDateTime.parse(order[2], dateFormatter);
+                Event eventTask = new Event(taskDescription, start, end);
+                reminder.addEvent(eventTask);
+                ui.print("Got it. I've added this task:");
+                ui.print("    " + eventTask.toString());
+                ui.print("Now you have " + reminder.size() + " tasks in the list.");
+                history.save(reminder.getSchedule());
+            } else {
+                throw new EmptyDescriptionException("ADD THE CORRECT PARAMETERS!");
+            }
+            return true;
+        } catch (DateTimeParseException e) {
+            throw new InvalidDateFormatException("FOLLOW THE CORRECT DATE FORMAT: DD/MM/YYYY HH:MM");
         }
-        return true;
     }
 
     /**

src/main/java/commands/AddMark.java

@@ -1,6 +1,8 @@
 package commands;
 
 import exceptions.EmptyDescriptionException;
+import exceptions.IndexOutBoundsException;
+import exceptions.NotIntegerException;
 import exceptions.TooManyParametersException;
 import windebot.History;
 import windebot.Reminder;
@@ -24,23 +26,33 @@ public class AddMark extends Command {
      * @return true if the command was executed successfully.
      * @throws EmptyDescriptionException If no index is provided in the input.
      * @throws TooManyParametersException If too many parameters are provided in the input.
+     * @throws NotIntegerException If no integer is provided in the input.
+     * @throws IndexOutBoundsException If integer provided is out of bounds.
      */
 
     public boolean execute(String input, Reminder reminder, Ui ui, History history)
-            throws EmptyDescriptionException, TooManyParametersException {
+            throws EmptyDescriptionException, TooManyParametersException,
+            NotIntegerException, IndexOutBoundsException {
         String[] command = input.split(" ");
         assert(command.length == 2);
-        if (command.length == 2) {
-            ui.print("Nice! I've marked this task as done:");
-            reminder.mark(Integer.parseInt(command[1]) - 1);
-            ui.print("    " + reminder.getTask(Integer.parseInt(command[1]) - 1).toString());
-            history.save(reminder.getSchedule());
-        } else if (command.length < 2) {
-            throw new EmptyDescriptionException("I NEED TO KNOW WHAT I'M MARKING!");
-        } else {
-            throw new TooManyParametersException("ONE AT A TIME!");
+        try {
+            int index = Integer.parseInt(command[1].trim());
+            if (command.length == 2) {
+                ui.print("Nice! I've marked this task as done:");
+                reminder.mark(index - 1);
+                ui.print("    " + reminder.getTask(Integer.parseInt(command[1]) - 1).toString());
+                history.save(reminder.getSchedule());
+            } else if (command.length < 2) {
+                throw new EmptyDescriptionException("I NEED TO KNOW WHAT I'M MARKING!");
+            } else {
+                throw new TooManyParametersException("ONE AT A TIME!");
+            }
+            return true;
+        } catch (NumberFormatException e) {
+            throw new NotIntegerException("THAT IS NOT AN INTEGER!");
+        } catch (StringIndexOutOfBoundsException e) {
+            throw new IndexOutBoundsException("THIS IS NOT A VALID TASK NUMBER!");
         }
-        return true;
     }
 
     /**

src/main/java/commands/AddTodo.java

@@ -28,8 +28,9 @@ public class AddTodo extends Command {
     public boolean execute(String input, Reminder reminder, Ui ui, History history)
             throws EmptyDescriptionException {
         String[] command = input.split(" ", 2);
-        if (command.length == 2) {
-            Todos todoTask = new Todos(command[1]);
+        String taskDescription = command[1].trim();
+        if (!(taskDescription.equals(""))) {
+            Todos todoTask = new Todos(taskDescription);
             reminder.addTodo(todoTask);
             ui.print("Got it. I've added this task:");
             ui.print("    " + todoTask.toString());

src/main/java/commands/AddUnmark.java

@@ -1,6 +1,8 @@
 package commands;
 
 import exceptions.EmptyDescriptionException;
+import exceptions.IndexOutBoundsException;
+import exceptions.NotIntegerException;
 import exceptions.TooManyParametersException;
 import windebot.History;
 import windebot.Reminder;
@@ -17,30 +19,40 @@ public class AddUnmark extends Command {
     /**
      * Executes the AddUnmark command, marking a task as not completed.
      *
-     * @param input The user input string containing the index of the task to be unmarked.
+     * @param input The user input string containing the index of the task to be marked.
      * @param reminder The Reminder object that manages the task list.
      * @param ui The Ui object used to interact with the user.
      * @param history The History object used to save the data
      * @return true if the command was executed successfully.
      * @throws EmptyDescriptionException If no index is provided in the input.
      * @throws TooManyParametersException If too many parameters are provided in the input.
+     * @throws NotIntegerException If no integer is provided in the input.
+     * @throws IndexOutBoundsException If integer provided is out of bounds.
      */
 
     public boolean execute(String input, Reminder reminder, Ui ui, History history)
-            throws EmptyDescriptionException, TooManyParametersException {
+            throws EmptyDescriptionException, TooManyParametersException,
+            NotIntegerException, IndexOutBoundsException {
         String[] command = input.split(" ");
         assert(command.length == 2);
-        if (command.length == 2) {
-            ui.print("OK, I've marked this task as not done yet:");
-            reminder.unmark(Integer.parseInt(command[1]) - 1);
-            ui.print("    " + reminder.getTask(Integer.parseInt(command[1]) - 1).toString());
-            history.save(reminder.getSchedule());
-        } else if (command.length < 2) {
-            throw new EmptyDescriptionException("I NEED TO KNOW WHAT I'M MARKING!");
-        } else {
-            throw new TooManyParametersException("ONE AT A TIME!");
+        try {
+            int index = Integer.parseInt(command[1].trim());
+            if (command.length == 2) {
+                ui.print("Ok! I've marked this task as not done:");
+                reminder.unmark(index - 1);
+                ui.print("    " + reminder.getTask(Integer.parseInt(command[1]) - 1).toString());
+                history.save(reminder.getSchedule());
+            } else if (command.length < 2) {
+                throw new EmptyDescriptionException("I NEED TO KNOW WHAT I'M MARKING!");
+            } else {
+                throw new TooManyParametersException("ONE AT A TIME!");
+            }
+            return true;
+        } catch (NumberFormatException e) {
+            throw new NotIntegerException("THAT IS NOT AN INTEGER!");
+        } catch (StringIndexOutOfBoundsException e) {
+            throw new IndexOutBoundsException("THIS IS NOT A VALID TASK NUMBER!");
         }
-        return true;
     }
 
     /**

src/main/java/commands/ByeCommand.java

@@ -22,6 +22,7 @@ public class ByeCommand extends Command {
      */
 
     public boolean execute(String input, Reminder reminder, Ui ui, History history) {
+        ui.print("Bye! Hope to see you again soon!");
         return false;
     }
 

src/main/java/commands/Command.java

@@ -1,6 +1,9 @@
 package commands;
 
 import exceptions.EmptyDescriptionException;
+import exceptions.IndexOutBoundsException;
+import exceptions.InvalidDateFormatException;
+import exceptions.NotIntegerException;
 import exceptions.TooManyParametersException;
 import windebot.History;
 import windebot.Reminder;
@@ -27,7 +30,8 @@ public abstract class Command {
      */
 
     public abstract boolean execute(String input, Reminder reminder, Ui ui, History history)
-            throws EmptyDescriptionException, TooManyParametersException;
+            throws EmptyDescriptionException, TooManyParametersException,
+            NotIntegerException, IndexOutBoundsException, InvalidDateFormatException;
 
     /**
      * Exits the chatbot

src/main/java/exceptions/IndexOutBoundsException.java

@@ -0,0 +1,17 @@
+package exceptions;
+
+/**
+ * The IndexOutBoundsException is thrown when the Index is out of bounds.
+ * This exception is typically used in commands that require Integer input.
+ */
+public class IndexOutBoundsException extends Exception {
+
+    /**
+     * Constructs a new IndexOutBoundsException with the specified detail message.
+     *
+     * @param message The detail message explaining the reason for the exception.
+     */
+    public IndexOutBoundsException(String message) {
+        super(message);
+    }
+}

src/main/java/exceptions/InvalidDateFormatException.java

@@ -0,0 +1,17 @@
+package exceptions;
+
+/**
+ * The InvalidDateFormatException is thrown when a String cannot be formatted to DateTime.
+ * This exception is typically used in commands that require Integer input.
+ */
+public class InvalidDateFormatException extends Exception {
+
+    /**
+     * Constructs a new InvalidDateFormatException with the specified detail message.
+     *
+     * @param message The detail message explaining the reason for the exception.
+     */
+    public InvalidDateFormatException(String message) {
+        super(message);
+    }
+}

src/main/java/exceptions/NotIntegerException.java

@@ -0,0 +1,17 @@
+package exceptions;
+
+/**
+ * The NotIntegerException is thrown when a String cannot be formatted to Integer.
+ * This exception is typically used in commands that require Integer input.
+ */
+public class NotIntegerException extends Exception {
+
+    /**
+     * Constructs a new NotIntegerException with the specified detail message.
+     *
+     * @param message The detail message explaining the reason for the exception.
+     */
+    public NotIntegerException(String message) {
+        super(message);
+    }
+}

src/main/java/windebot/Parser.java

@@ -90,29 +90,29 @@ public static Command parse(String input) throws UnsupportedCommandException {
      */
 
     private static SubCommandType getCommandType(String input) {
-        if (input.startsWith("todo")) {
+        if (input.startsWith("todo ")) {
             return SubCommandType.TODO;
-        } else if (input.startsWith("deadline")) {
+        } else if (input.startsWith("deadline ")) {
             return SubCommandType.DEADLINE;
-        } else if (input.startsWith("event")) {
+        } else if (input.startsWith("event ")) {
             return SubCommandType.EVENT;
         } else if (input.equals("list")) {
             return SubCommandType.LIST;
-        } else if (input.startsWith("delete")) {
+        } else if (input.startsWith("delete ")) {
             return SubCommandType.DELETE;
         } else if (input.equals("bye")) {
             return SubCommandType.BYE;
-        } else if (input.startsWith("mark")) {
+        } else if (input.startsWith("mark ")) {
             return SubCommandType.MARK;
-        } else if (input.startsWith("unmark")) {
+        } else if (input.startsWith("unmark ")) {
             return SubCommandType.UNMARK;
-        } else if (input.startsWith("date")) {
+        } else if (input.startsWith("date ")) {
             return SubCommandType.DATE;
-        } else if (input.startsWith("find")) {
+        } else if (input.startsWith("find ")) {
             return SubCommandType.FIND;
-        } else if (input.startsWith("change") || input.startsWith("cutoff")
-                || input.startsWith("start") || input.startsWith("end")
-                || input.startsWith("action")) {
+        } else if (input.startsWith("change ") || input.startsWith("cutoff ")
+                || input.startsWith("start ") || input.startsWith("end ")
+                || input.startsWith("action ")) {
             return SubCommandType.CHANGE;
         } else {
             return SubCommandType.UNKNOWN;

src/main/java/windebot/Winde.java

@@ -1,9 +1,9 @@
 package windebot;
 
 import commands.Command;
-import exceptions.EmptyDescriptionException;
-import exceptions.TooManyParametersException;
-import exceptions.UnsupportedCommandException;
+import exceptions.*;
+
+import java.time.format.DateTimeParseException;
 
 /**
  * The Winde class is the main class that runs the WindeBot chatbot.
@@ -60,6 +60,12 @@ public String getResponse(String input) {
             throw new RuntimeException(e);
         } catch (TooManyParametersException e) {
             throw new RuntimeException(e);
+        } catch (NotIntegerException e) {
+            throw new RuntimeException(e);
+        } catch (IndexOutBoundsException e) {
+            throw new RuntimeException(e);
+        } catch (InvalidDateFormatException e) {
+            throw new RuntimeException(e);
         }
     }