feat: Add scalable PostgreSQL integration with Prisma, NextAuth, and user progress tracking ( solves #98 )

notes-aid/.gitignore

@@ -43,4 +43,11 @@ next-env.d.ts
 
 # Ignore service worker file in public
 /public/service-worker.js
-/public/workbox-*.js
+/public/workbox-*.js
+
+# Prisma
+prisma/.env
+prisma/migrations/
+
+# Local environment variables
+.env

notes-aid/README-DATABASE.md

@@ -0,0 +1,65 @@
+# Notes-Aid Database Integration
+
+## Overview
+This project uses **PostgreSQL** (hosted on Supabase) with **Prisma ORM** for type-safe, scalable database access. Authentication is managed via **NextAuth.js** with support for OAuth providers (GitHub, Google).
+
+## Setup Steps
+
+1. **Install dependencies:**
+   ```bash
+   npm install
+   ```
+2. **Configure environment variables:**
+   - Copy `.env.example` to `.env` and fill in your credentials (DATABASE_URL, NextAuth secrets, OAuth keys).
+3. **Prisma setup:**
+   ```bash
+   npx prisma generate
+   npx prisma migrate dev --name init
+   ```
+4. **Run the development server:**
+   ```bash
+   npm run dev
+   ```
+
+## Database Schema
+- **User:** Profiles, preferences, authentication
+- **UserProgress:** Tracks completion of videos/notes
+- **UserAnalytics:** Usage analytics and activity
+- **ContentCache:** Caching for performance
+- **Account, Session, VerificationToken:** NextAuth.js tables
+
+## Useful Commands
+- `npx prisma studio` – Visual database browser
+- `npx prisma migrate dev` – Run migrations
+- `npx prisma generate` – Generate Prisma client
+
+## Production Notes
+- Use a managed PostgreSQL instance (Supabase recommended)
+- Set strong secrets for NextAuth
+- Monitor query performance and enable connection pooling
+
+## More Info
+- See `prisma/schema.prisma` for the full schema
+- See API route files for usage examples 
+
+## .env Format Example
+
+Create a `.env` file in your `notes-aid` directory with the following content (replace values as needed):
+
+```
+# Database
+DATABASE_URL=postgresql://USER:PASSWORD@HOST:PORT/DATABASE
+
+# NextAuth.js
+NEXTAUTH_SECRET=your_nextauth_secret
+NEXTAUTH_URL=http://localhost:3000
+
+# OAuth Providers (Google, GitHub)
+GITHUB_ID=your_github_client_id
+GITHUB_SECRET=your_github_client_secret
+GOOGLE_CLIENT_ID=your_google_client_id
+GOOGLE_CLIENT_SECRET=your_google_client_secret
+```
+
+- Do **not** commit your real `.env` file to git. Only `.env.example` should be tracked.
+- See `.env.example` for a template. 

notes-aid/README.md

@@ -34,3 +34,16 @@ You can check out [the Next.js GitHub repository](https://github.com/vercel/next
 The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
 
 Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
+
+## 🚀 Database Integration & User Progress 
+
+- Integrated scalable PostgreSQL database (Supabase) using Prisma ORM for type-safe, performant access.
+- Added NextAuth.js authentication with Google OAuth for secure user login and session management.
+- Implemented secure API endpoints for user progress, analytics, and preferences, all protected by authentication.
+- Linked progress tracking UI to the database for logged-in users—progress is now persistent and user-specific.
+- Role-based access control (admin/user) for secure admin endpoints.
+- Provided .env.example and updated documentation for easy setup.
+
+See `README-DATABASE.md` for setup and usage instructions.
+
+---