AI Document Chat SaaS App (PROJECT)

Not a live application, just a simple project

An interactive document companion that turns your PDFs into a conversational AI experience. Upload, store, and chat with your documents—summarize, query, and get insights in real time.

Credits: Sonny Sangha Youtuber

🚀 Table of Contents

• Demo & Access
• Features
• Tech Stack
• Getting Started
  • Prerequisites
  • Installation
  • Environment Variables
  • Run Locally
• Project Structure
• Deployment
• Usage
• Contributing
• License
• Contact

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📺 Demo & Access

• Live Demo: Render
• Dashboard: /dashboard (requires sign‑in)
• Upload: /dashboard/upload
• Chat with Document: /dashboard/files/{fileId}

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✨ Features

• PDF Storage & Retrieval
• Interactive Chatbot: Ask questions, summarize content, get context-aware answers.
• Authentication & Authorization: Clerk-powered SSO + MFA support.
• Tiered Pricing: Free & Pro plans via Stripe Checkout & Customer Portal. (Not a real payment)
• Real‑time Updates: Firestore + React Firebase Hooks for chat history.
• Responsive UI: Tailwind CSS + Radix UI + lucide-react icons.
• PDF Viewer: In‑browser PDF rendering and navigation.

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🛠 Tech Stack

Layer	Technology
Framework	Next.js 15, React, TypeScript
Styling	Tailwind CSS, class-variance-authority
Auth	Clerk (OAuth, SSO, MFA)
Database	Firebase Firestore (Client & Admin SDK)
Payments	Stripe Checkout, Billing Portal
AI & Embeddings	OpenAI API, Custom embedding functions
State & Data	React Firebase Hooks, Clerk Hooks
Icons & Fonts	lucide-react, Google Fonts (Geist)
Deployment	Render (Next.js)

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📥 Getting Started

Prerequisites

• Node.js ≥ 18
• npm / yarn / pnpm
• A Clerk account
• A Firebase project with Firestore & Service Account
• A Stripe account
• An OpenAI API key

Installation

# Clone
git clone https://github.com/ankitpatil3003/ai-document-chat-saas-app.git
cd ai-document-chat-saas-app

# Install dependencies
npm install
# or
pnpm install
# or
yarn

Environment Variables

Create a .env.local in the project root:

# Clerk
NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_test_...

# Firebase Admin
FIREBASE_PROJECT_ID=your-project-id
FIREBASE_CLIENT_EMAIL=service-account@...
FIREBASE_PRIVATE_KEY="-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----\n"

# Stripe
STRIPE_SECRET_KEY=sk_test_...
STRIPE_WEBHOOK_SECRET=whsec_...

# OpenAI
OPENAI_API_KEY=sk-...

# Next.js
NEXTAUTH_URL=http://localhost:3000

Run Locally

# Start development server
npm run dev
# Visit http://localhost:3000

For production build & start:

npm run build
npm run start
# by default serves on port 3000 (or configured port)

📁 Project Structure

.
├── app
│   ├── layout.tsx            # Root layout (ClerkProvider, fonts)
│   ├── page.tsx              # Landing / Home page
│   └── dashboard
│       ├── layout.tsx        # Dashboard layout (Header, nav)
│       ├── page.tsx          # Documents list
│       ├── upload/page.tsx   # File uploader
│       └── [id]/page.tsx     # ChatToFile page (Chat + PdfView)
│   └── api
│       └── webhooks
│           └── stripe
│               └── route.ts  # Webhook handling
├── components
│   ├── Chat.tsx              # Chat UI & logic
│   ├── PdfView.tsx           # PDF viewer
│   ├── Documents.tsx         # File list
│   ├── FileUploader.tsx      # Upload logic
│   ├── Header.tsx            # Navigation header
│   ├── UpgradeButton.tsx     # Stripe portal button
│   ├── ui
│   │   ├── button.tsx        # CVA‑powered Button
│   │   └── input.tsx         # Styled Input
│   └── ChatMessage.tsx       # Single message renderer
├── actions
│   ├── askQuestion.ts        # Server‑action: OpenAI query
│   ├── createCheckoutSession.ts
│   └── createStripePortal.ts
├── hooks
│   └── useSubscription.ts
├── lib
│   ├── stripe-js.ts          # Stripe.js loader
│   └── utils.ts              # cn (class names) helper
├── firebase.ts               # Client Firestore init
├── firebaseAdmin.ts          # Admin SDK init
├── generateEmbeddings.ts     # Embedding util (server)
├── route.ts                  # API routes (if any)
├── globals.css               # Tailwind globals
└── README.md                 # ← You are here

☁️ Deployment

☁️ Deployment

1. Render

• Connect your GitHub repo
• Set environment variables in the Render dashboard
• Deploy

💡 Usage

1. Sign up / Sign in via Clerk.
2. Upload a PDF under “My Documents.”
3. Select a file to enter the chat interface.
4. Ask questions in natural language—get instant AI responses.
5. Upgrade to Pro for increased limits & advanced analytics.

🤝 Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feature/foo)
3. Commit your changes (git commit -am 'Add foo')
4. Push to the branch (git push origin feature/foo)
5. Open a Pull Request Please follow the existing code style and add relevant tests.

📄 License

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

✉️ Contact

• Made by Ankit Patil
• GitHub: @ankitpatil3003
• Email: apatil@binghamton.edu
• Project Link: https://github.com/ankitpatil3003/ai-document-chat-saas-app