Boblet

Boblet is your friendly personal assistant chatbot! It helps you manage your tasks efficiently, offering support for various types of tasks such as ToDos, Deadlines, and Events. Designed as a command-line application, Boblet provides an interactive way to organize your daily activities.

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Features

1. Task Management

Boblet allows you to:

• Add tasks of different types:
  • ToDos: Simple tasks without a specific deadline.
  • Deadlines: Tasks with a specified due date.
  • Events: Tasks with a specified time frame.
• List all tasks in your current task list.
• Mark tasks as completed.
• Delete tasks from your task list.

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2. Task Types

Boblet supports three types of tasks:

1. ToDos:

   • Format: todo <description>
   • Example:

     You: todo read book
     

   • Output:

     Got it. I've added this task:
       [TODO][✗] read book
     Now you have 1 task in the list.
     

2. Deadlines:

   • Format: deadline <description> /by <due date>
   • Example:

     You: deadline return book /by Sunday
     

   • Output:

     Got it. I've added this task:
       [DEADLINE][✗] return book (by: Sunday)
     Now you have 2 tasks in the list.
     

3. Events:

   • Format: event <description> /at <time>
   • Example:

     You: event project meeting /at Monday 2-4pm
     

   • Output:

     Got it. I've added this task:
       [EVENT][✗] project meeting (at: Monday 2-4pm)
     Now you have 3 tasks in the list.
     

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3. Commands

Boblet supports the following commands:

Command	Description	Format	Example
list	Lists all tasks in your current task list.	list	You: list
done	Marks a task as done.	done <task number>	You: done 1
delete	Deletes a task from the list.	delete <task number>	You: delete 2
todo	Adds a ToDo task.	todo <description>	You: todo buy groceries
deadline	Adds a Deadline task.	deadline <description> /by <date>	You: deadline submit report /by Friday
event	Adds an Event task.	event <description> /at <time>	You: event team meeting /at 3-5pm
bye	Exits the application.	bye	You: bye

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4. Error Handling

Boblet gracefully handles incorrect inputs with descriptive error messages. Examples:

1. Invalid Commands:

   You: unknowncommand
   ☹ OOPS!!! I'm sorry, but I don't know what that means :-(
   

2. Empty Task Descriptions:

   You: todo
   ☹ OOPS!!! The description of a todo cannot be empty.
   

3. Invalid Task Numbers:

   You: done 99
   ☹ OOPS!!! Invalid task number!
   

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Setup

Prerequisites

• Java Development Kit (JDK) 8 or above installed on your system.

Clone the Repository

To get started, clone the repository:

git clone <repository-url>

Compile and Run

1. Navigate to the project directory:

   cd <project-directory>

2. Compile the code:

   javac Boblet.java

3. Run the program:

   java Boblet

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Example Usage

Interaction

Below is an example interaction with Boblet:

____________________________________________________________
Hey there! I'm Boblet, your friendly assistant!
I can track ToDos, Deadlines, and Events. Just tell me what to do!
Type 'list' to see your tasks, 'done <number>' to mark a task as done, 'delete <number>' to remove a task, or 'bye' to leave. Let's get started!
____________________________________________________________
You: todo read book
____________________________________________________________
Got it. I've added this task:
  [TODO][✗] read book
Now you have 1 task in the list.
____________________________________________________________
You: deadline return book /by Sunday
____________________________________________________________
Got it. I've added this task:
  [DEADLINE][✗] return book (by: Sunday)
Now you have 2 tasks in the list.
____________________________________________________________
You: event project meeting /at Monday 2-4pm
____________________________________________________________
Got it. I've added this task:
  [EVENT][✗] project meeting (at: Monday 2-4pm)
Now you have 3 tasks in the list.
____________________________________________________________
You: list
____________________________________________________________
Here are the tasks in your list:
1.[TODO][✗] read book
2.[DEADLINE][✗] return book (by: Sunday)
3.[EVENT][✗] project meeting (at: Monday 2-4pm)
____________________________________________________________
You: done 1
____________________________________________________________
Nice! I've marked this task as done:
  [TODO][✓] read book
____________________________________________________________
You: delete 2
____________________________________________________________
Noted. I've removed this task:
  [DEADLINE][✗] return book (by: Sunday)
Now you have 2 tasks in the list.
____________________________________________________________
You: bye
____________________________________________________________
Aww, you're leaving already! Well, take care!
See you soon! Bye from Boblet!
____________________________________________________________

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Design Overview

Architecture

Boblet's architecture follows an object-oriented design with the following components:

1. Task (Abstract Class):

   • Base class for tasks.
   • Supports common properties like description, status (done or not), and task type.

2. Task Types:

   • Todo: A simple task.
   • Deadline: A task with a deadline.
   • Event: A task with a specific time.

3. Enums:

   • TaskType: Represents task types (TODO, DEADLINE, EVENT).
   • CommandType: Represents user commands (LIST, DONE, DELETE, etc.).

4. Exception Handling:

   • Custom BobletException for user input validation.

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Future Enhancements

1. Persistence:

   • Save tasks to a file and load them on startup.

2. Date and Time Parsing:

   • Use Java's LocalDate and LocalTime for better handling of deadlines and events.

3. User Interface:

   • Transition from the command-line interface to a graphical user interface (GUI).

4. Search Functionality:

   • Allow users to search for tasks by keywords or dates.

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Contributing

Contributions are welcome! Please fork the repository and submit a pull request.

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License

This project is licensed under the MIT License. See the LICENSE file for details.