AI Document Intelligence Platform

A production-grade multi-document intelligence platform built with Next.js 16, TypeScript, and AI-powered features. Upload documents and leverage AI for summarization, Q&A chat, comparison analysis, quiz generation, and flashcard creation.

Features

Document Management

• Multi-format Upload — Drag & drop support for PDF, DOCX, TXT, MD, PPTX (up to 50MB)
• File Queue — Upload multiple files simultaneously with progress tracking
• Document Stats — Word count, character count, page estimation, file size
• Dashboard Analytics — Total documents, summaries generated, storage used

AI-Powered Summarization (7 Types)

• Short Summary — Brief 2-3 sentence overview
• Medium Summary — Key points and main ideas
• Detailed Summary — Comprehensive breakdown
• Executive Summary — Business-focused overview
• Bullet Points — Scannable bullet-point format
• Action Items — Key tasks and next steps
• Key Insights — Important findings and takeaways

Multi-Language Support (7 Languages)

English, Spanish, French, German, Chinese, Japanese, Hindi

Audience-Level Customization (6 Levels)

Beginner, Intermediate, Advanced, Executive, Technical, General

Interactive Features

• Document Chat — RAG-style conversational Q&A about your documents with suggested questions
• Document Comparison — Side-by-side AI comparison of any two uploaded documents
• Quiz Generator — AI-generated multiple-choice questions with scoring and explanations
• Flashcard Generator — 3D flip-animated flashcards with difficulty badges and navigation
• Text-to-Speech — Listen to summaries and content via AI-powered TTS

UI/UX

• Dark/Light/System Theme — Full theme support with next-themes
• Responsive Design — Mobile-first layout with collapsible sidebar
• Smooth Animations — Framer Motion transitions throughout
• Toast Notifications — Real-time feedback for all actions
• shadcn/ui Components — Full component library (New York style) with Lucide icons

Tech Stack

Category	Technology
Framework	Next.js 16 (App Router)
Language	TypeScript 5
Styling	Tailwind CSS 4 + shadcn/ui
Database	SQLite via Prisma ORM
State	Zustand + TanStack Query
AI Engine	z-ai-web-dev-sdk (LLM + TTS)
Animation	Framer Motion
Icons	Lucide React
Theme	next-themes
Notifications	Sonner

Getting Started

Prerequisites

• Node.js 18+ or Bun
• A valid z-ai-web-dev-sdk configuration

Installation

# Clone the repository
git clone https://github.com/<your-username>/ai-document-intelligence.git
cd ai-document-intelligence

# Install dependencies
bun install

# Set up database
bun run db:push
bun run db:generate

# Start development server
bun run dev

The app will be available at http://localhost:3000.

Production Build

bun run build
bun run start

Project Structure

src/
├── app/
│   ├── layout.tsx              # Root layout with ThemeProvider
│   ├── page.tsx                # Main SPA shell with sidebar
│   └── api/documents/
│       ├── route.ts            # GET (list+stats), POST (upload), DELETE
│       ├── [id]/route.ts       # GET single document with relations
│       ├── summarize/route.ts  # POST: AI summarization (7 types)
│       ├── chat/route.ts       # POST: Document Q&A chat
│       ├── compare/route.ts    # POST: Compare two documents
│       ├── quiz/route.ts       # POST: Generate MCQ quiz
│       ├── flashcards/route.ts # POST: Generate flashcards
│       ├── tts/route.ts        # POST: Text-to-speech
│       └── analyze/route.ts    # POST: Multi-doc analysis
├── components/
│   ├── app/
│   │   ├── app-sidebar.tsx     # Collapsible navigation sidebar
│   │   ├── dashboard-view.tsx  # Stats, recent docs, quick actions
│   │   ├── upload-view.tsx     # Drag & drop file upload
│   │   ├── document-viewer.tsx # Summary generator + document display
│   │   ├── chat-view.tsx       # Document Q&A chat interface
│   │   ├── comparison-view.tsx # Side-by-side doc comparison
│   │   ├── quiz-view.tsx       # Quiz generator with scoring
│   │   ├── flashcards-view.tsx # 3D flip flashcards
│   │   └── settings-view.tsx   # Theme & settings
│   └── ui/                     # shadcn/ui components
├── store/
│   └── ui-store.ts            # Zustand global state
├── lib/
│   └── db.ts                  # Prisma client instance
├── types/
│   └── index.ts               # TypeScript types & constants
└── hooks/                     # Custom React hooks

Database Schema

• Document — Uploaded files with content, metadata, and stats
• Summary — Generated summaries (type, language, audience, content)
• ChatMessage — Document chat conversation history
• Comparison — Document comparison results
• Quiz — Generated quizzes with questions and answers
• FlashcardSet — Generated flashcard sets

API Endpoints

Method	Endpoint	Description
GET	/api/documents	List all documents with stats
POST	/api/documents	Upload new document
DELETE	/api/documents?id=	Delete document
GET	/api/documents/[id]	Get document with summaries & messages
POST	/api/documents/summarize	Generate AI summary
POST	/api/documents/chat	Chat with document
POST	/api/documents/compare	Compare two documents
POST	/api/documents/quiz	Generate quiz
POST	/api/documents/flashcards	Generate flashcards
POST	/api/documents/tts	Text-to-speech
POST	/api/documents/analyze	Multi-document analysis

License

MIT