📅 Task Scheduler with Automated Reminders

A secure, modular Java web app to manage tasks, track deadlines, and send automated reminders.
Built for real-world productivity, designed with good coding practices.

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🛠️ Features

• 🔐 Secure Authentication using BCrypt
• 📋 CRUD for tasks with priority, type, tags, and checklist
• ⏰ Email reminders (1 hour before deadline) via multithreaded scheduler
• 📊 Dynamic JSTL-based dashboard
• 🔍 Filter tasks by type with color coding
• 📅 Planned integration with FullCalendar.js
• 🔒 Modular, scalable, and beginner-friendly codebase

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🏗️ Tech Stack

Layer	Technology
Backend	Java 17, Servlets, JSP 3.0, JSTL 2.0
Frontend	HTML, Bootstrap 5.3, FullCalendar.js
Database	PostgreSQL 15
Scheduling	Java ScheduledExecutorService
Auth	jBCrypt
Mail	JavaMail API
Server	Apache Tomcat 10
IDE	Eclipse IDE for Enterprise Java

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⚙️ Setup Instructions

✅ Prerequisites

• Java 17
• Apache Tomcat 10
• PostgreSQL 15+
• Eclipse IDE for Enterprise Java
• Internet (for Bootstrap, FullCalendar CDN)

🧱 Build & Deploy

git clone https://github.com/<your-username>/TaskScheduler.git

1. Open the project in Eclipse as a Dynamic Web Project
2. Add the following JARs to WEB-INF/lib/:
   • postgresql-42.6.0.jar
   • jBCrypt-0.4.jar
   • javax.mail.jar
   • jakarta.servlet.jsp.jstl-2.0.0.jar, standard.jar
3. Configure DBUtil.java:

   private static final String URL = "jdbc:postgresql://localhost:5432/taskscheduler";
   private static final String USER = "your_db_user";
   private static final String PASSWORD = "your_password";

4. Start Tomcat and visit:
   http://localhost:8080/TaskScheduler/login.jsp

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🗃️ Sample SQL Setup

-- Create test user
INSERT INTO users (username, email, password)
VALUES ('testuser', 'testuser@example.com', 'password123');

-- Add tasks
INSERT INTO tasks (user_id, title, description, due_date, type, priority, status, tags)
VALUES
(1, 'Doctor Appointment', 'Annual check-up', '2025-06-20 14:00:00', 'REMINDER', 'HIGH', 'PENDING', 'health,important'),
(1, 'Project Deadline', 'Phase 1 milestone', '2025-06-22 17:00:00', 'TASK', 'HIGH', 'PENDING', 'work,urgent'),
(1, 'Grocery Ideas', 'Try pesto pasta', '2025-06-25 18:00:00', 'IDEA', 'LOW', 'PENDING', 'cooking,home');

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🗂️ Project Structure

TaskScheduler/
├── src/
│   └── main/java/com/taskscheduler/
│       ├── controller/     # Servlets
│       ├── dao/            # DAO classes
│       ├── model/          # POJOs
│       ├── util/           # Helpers (DBUtil, EmailService)
│       └── listener/       # Context listeners
├── webapp/
│   ├── WEB-INF/
│   │   ├── lib/            # External dependencies
│   │   └── web.xml         # Deployment descriptor
│   └── views/              # JSP pages

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🚧 Project Status

Feature	Status	Notes
Task CRUD	✅ Done	Fully functional using JDBC
Email Scheduler	✅ Done	Sends reminders 1 hour before due date
Calendar Integration	⚠️ WIP	FullCalendar not rendering due to JSTL + LocalDateTime issues
Mobile UI	⚠️ Proto	Needs better responsive layout
Login Feedback	⚠️ Basic	Minimal user feedback on login failure

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🔮 Future Enhancements

• 📱 Fully mobile-responsive layout
• 📲 SMS reminders (Twilio)
• 📌 Drag-and-drop task reordering (Sortable.js)
• 🤖 AI-powered task suggestions
• 🗓️ Full interactive calendar editing

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📚 References

• JavaMail API Docs
• PostgreSQL Docs
• Bootstrap 5
• FullCalendar.js
• Apache Tomcat 10
• jBCrypt GitHub

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🤝 Contributing

New to open source or Java web apps? We welcome beginners and experts alike!

Check out our CONTRIBUTING.md to learn:

• ✅ How to set up the project in Eclipse IDE for Enterprise Java
• ✅ Git basics with step-by-step visual resources
• ✅ Our code structure, style, and commit guidelines
• ✅ How to submit your first Pull Request with confidence

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👨‍💻 Author

Developed by kawas8516
Open to contributions, ideas, and improvements. Fork it, build on it, and share back!

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📄 License

This project is licensed under the MIT License.
Free to use, fork, and modify for non-commercial and academic purposes — with attribution.

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