Table of Contents

1. Project Overview
2. Key Features & SW Factory Alignment
3. Tech Stack
4. How to Run Locally
5. Project Structure
6. DevOps & CI/CD Approach
7. SDK: Integrating in Other Projects
8. Future Enhancements
9. Conclusion
10. Contact

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1. Project Overview

This Task & Calendar Management App is a full-stack solution showcasing Node.js, Express, SQLite, and React to provide a rich feature set for managing calendars, tasks, and daily or monthly schedules. By design, it demonstrates a DevOps mindset with flexible CI/CD integration and swift, modular development cycles—ideal for organizations focusing on delivering software fast and frequently (“SW Factory” style).

Key highlights:

• Frontend: Built with React (using Indexed DB for faster local reads), offering daily and monthly calendars, sub-calendars, and a task management interface.
• Backend: Exposes a RESTful API (Node.js/Express) with data persisted in SQLite for simplicity and portability; designed for containerization and flexible environment configs.
• DevOps Orientation: Prepared for automated builds, testing, and deployments using environment variables, well-structured modules, and CI/CD-friendly architecture.

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2. Key Features & SW Factory Alignment

1. DevOps & SW Factory Readiness
   • Clear separation of concerns in code structure (controllers/models/routes).
   • Quick setup for continuous integration and continuous deployment (e.g., Docker, GitHub Actions).
   • Minimal friction for feature additions and incremental deliveries.
2. Fast Iteration
   • Tight scope with immediate MVP potential: quickly spin up an internal pilot or proof-of-concept.
   • Frontend-backend decoupling allows parallel development, a cornerstone of rapid software factories.
3. Task & Calendar Modules
   • SubCalendars: Users can create multiple calendars (“Work”, “Personal”), each with its own tasks.
   • Task Management: CRUD operations, toggling completion status, and advanced filtering by calendar/date.
4. User Experience
   • Daily View: Focused snapshot of tasks for the day with easy toggles.
   • Monthly View: Quick overview of the entire month, day-click to show daily details.
5. Extensible Architecture
   • The app can be integrated into larger ecosystems with minimal overhead: highlight of an SDK-like approach for calendar and task functionalities.
   • Support for advanced expansions (e.g., user authentication, role-based access control, priority tasks, AI-based suggestions).

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3. Tech Stack

Layer	Technology
Frontend	React, IndexedDB (via idb), CSS Modules, date-fns
Backend	Node.js, Express, SQLite
DevOps	Ready for Dockerization, .env configs, Git-based CI/CD (GitHub Actions)
Testing	Jest
Deployment	Container-based or standard Node environment

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4. How to Run Locally

Below is the typical local development workflow:

1. Clone the Repository

   git clone https://github.com/your-username/your-repo.git
   cd your-repo

2. Install Dependencies

   npm install     # Installs backend dependencies
   cd client
   npm install     # Installs frontend dependencies
   cd ..

3. Configure Environment Variables (optional)

   Create a .env file in the root directory (same level as package.json) with variables like:

   PORT=4000
   DB_PATH=./src/db/database.db

4. Run the Development Servers

   Start the backend:

   npm run server

   Start the frontend:

   cd client
   npm start

   Open http://localhost:3000 in your browser to access the application.

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5. Project Structure

.
├── backend/                 # Backend implementation
│   ├── src/                 # Core backend functionality
│   │   ├── controllers/     # API logic for tasks and calendars
│   │   ├── models/          # Database interaction layers
│   │   ├── routes/          # REST API endpoints
│   │   ├── db/              # SQLite setup and migrations
│   │   └── tests/           # Backend tests
│   ├── .github/workflows/   # CI/CD pipeline configuration
│   ├── .env                 # Environment variables
│   └── package.json         # Backend dependencies and scripts
│
├── src/                     # Frontend implementation
│   ├── App/                 # Main React App component
│   ├── components/          # Modular UI components
│   ├── services/            # React Context and state management
│   ├── utils/               # Utility functions
│   ├── __test__/            # Frontend unit tests
│   └── index.js             # Application entry point
│
├── public/                  # Static assets for the frontend
├── package.json             # Frontend dependencies and scripts
└── README.md                # Project documentation

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6. DevOps & CI/CD Approach

1. Automated Testing

   Recommend jest for unit tests and supertest for integration testing, ensuring reliability.

2. Continuous Integration

   Configure CI pipelines to run tests and lint checks automatically.

3. Continuous Deployment

   Containerization: The Node + SQLite structure can be Dockerized quickly.

   Deployment to AWS, Azure, or on-premises servers can be triggered automatically once CI tests pass.

   .env usage for environment-specific configurations, ensuring portability.

4. Agile & Iterative Delivery

   The repository is organized for easy extension in sprints.

   Parallel development of frontend and backend fosters a shorter feedback loop.

This workflow embodies fast iteration, test-driven changes, and the kind of continuous software delivery desired in a modern software factory context.

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7. SDK: Integrating in Other Projects

This project is modular enough to function like an SDK for task and calendar features in a React/Node ecosystem. Below is a high-level guide for integrating these modules into an external application:

7.1 Installation & Setup

1. Include or reference the module

   If published, you might do:

   npm install my-task-calendar-sdk

   Otherwise, add this repo as a Git submodule or copy the relevant directories (controllers, models, routes, services) into your existing project.

2. Backend Integration

   Routes: Merge or mount the taskRoutes and subCalendarRoutes onto your existing Express application.

   Models/Controllers: Ensure your environment variables (DB_PATH, etc.) are correctly set so the SQLite DB is accessible.

   For containerization, add these modules to your Dockerfile and confirm your .env is included or injected at runtime.

3. Frontend Integration

   If you want to reuse the React components:

   1. Import the TaskProvider from the services/taskContext.
   2. Wrap your top-level App (or a sub-tree) with ....
   3. Use the provided components like , in your existing React UI.

   Adjust styling as needed, or override the default CSS in your own theme.

4. Environment Variables

   Configure a .env file or environment variables in your deployment infrastructure. Example:

   PORT=5000
   DB_PATH=/app/db/my-database.db
   

   This ensures the backend picks up the correct DB location and network port.

7.2 Example Usage in Your React App

// In your main App.jsx
import React from 'react';
import { TaskProvider } from 'my-task-calendar-sdk'; // or your local path
import DayCalendar from 'my-task-calendar-sdk/components/Calendar/DayCalendar';
import MonthCalendar from 'my-task-calendar-sdk/components/Calendar/MonthCalendar';

function App() {
  return (
    <TaskProvider> 
      <div>
        <h1>My Existing App + Task SDK</h1>
        <MonthCalendar />
        <DayCalendar />
      </div>
    </TaskProvider>
  );
}

export default App;

This setup instantly grants your application the calendar logic and data model from the Task & Calendar Management SDK.

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8. Future Enhancements

1. User & Authentication: Multi-tenant usage with secure logins and role-based access.
2. CSV Import/Export: For bulk data import and backups.
3. Task Prioritization & AI Suggestions: Automatic scheduling recommendations based on deadlines, workload, or ML-based ranking.
4. Collaborative Features: Shared calendars for team projects, real-time task updates via Web Sockets.

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9. Conclusion

This Task & Calendar Management project demonstrates:

• Full-stack proficiency (React + Node.js/Express + SQLite).
• A design ready for DevOps pipelines, making it easy to continuously integrate, test, and deploy.
• SDK-like modularity for easy adoption in other projects, showcasing knowledge in agile development, containerization, and CI/CD best practices.
• A thoughtful approach to performance (Indexed DB caching) and architecture (controllers/models separation, environment variables, easy expansions).

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10. Contact

• Author: Zihan Kuang
• Email: zihan_kuang@outlook.com
• LinkedIn: https://www.linkedin.com/in/zihan-kuang-6087b2329/