Adhyan - AI-Powered Study Platform

Transform your PDFs, text, and YouTube videos into smart study materials with AI-powered note generation, flashcards, quizzes, and mind maps.

🌟 Features

Content Processing

• PDF Upload: Extract and process text from PDF documents
• Text Input: Direct text input for study material creation
• YouTube Integration: Extract transcripts from YouTube videos
• Smart Content Analysis: AI-powered content structuring and organization

Study Tools

• Structured Notes: Hierarchical, organized study notes with table of contents
• Flashcards: Three types - Definition, Recall, and Application cards
• Interactive Quizzes: Multiple choice and True/False questions with instant feedback
• Mind Maps: Visual concept mapping with interactive nodes

🚀 Tech Stack

• Frontend: Next.js, React, TypeScript, Tailwind CSS
• Backend: Next.js API Routes, Prisma ORM
• Database: PostgreSQL
• AI: Google Gemini 2.0 Flash via LangChain
• Authentication: NextAuth.js

🎯 How It Works

Content Processing Pipeline

1. Upload: User uploads PDF, enters text, or provides YouTube URL
2. Extraction: System extracts raw text content
3. Processing: Content is cleaned, chunked, and analyzed
4. AI Generation: Google Gemini creates structured study materials
5. Storage: Generated content is saved to database
6. Presentation: User accesses formatted study materials

AI-Powered Features

• Smart Structuring: Automatically organizes content into logical sections
• Flashcard Generation: Creates three types of flashcards
• Quiz Creation: Generates relevant questions with explanations
• Mind Map Building: Constructs visual relationship maps

🧠 Content Filtering & AI Organization

Smart Content Preprocessing

Before sending content to Google Gemini, Adhyan employs sophisticated filtering and organization strategies to ensure optimal AI generation quality:

📊 Quiz Content Filtering

• Multi-stage Scoring System: Content is scored based on quiz-worthiness
  • Definitions: 3x weight (highest priority for quiz questions)
  • Examples: 2.5x weight (good for application questions)
  • Key points: 2x weight (factual recall questions)
• Quality Thresholds: Filters out sections with insufficient content depth
• Score-based Ranking: Best content is prioritized for Gemini processing
• Content Type Analysis: Automatically identifies definitions, examples, and concepts

🧠 Flashcard Content Segmentation

• Recall Cards: Extracts factual content, definitions, and key takeaways
• Application Cards: Focuses on examples and conceptual connections
• Definition Cards: Simple extraction of all term-definition pairs

🗺️ Mindmap Content Strategy

• Comprehensive Processing: Uses complete structured notes
• Hierarchical Preservation: Maintains section-subsection relationships
• Concept Relationship Mapping: Identifies connections between ideas

Gemini Prompt Engineering

• Context-Rich Prompts: Includes section context and learning objectives
• Type-Specific Instructions: Tailored prompts for each content type
• Quality Guidelines: Built-in quality standards for AI generation
• JSON Structure Enforcement: Consistent output formatting

📚 Study Material Types

📝 Structured Notes

• Hierarchical organization with main sections and subsections
• Key points, definitions, examples, and connections
• Table of contents for easy navigation

🧠 Flashcards

• Definition Cards: Key terms and their meanings
• Recall Cards: Important facts and concepts
• Application Cards: Examples and practical applications

❓ Interactive Quizzes

• Multiple choice questions with 4 options
• True/False statements with explanations
• Immediate feedback and scoring
• Performance tracking and analytics

🗺️ Mind Maps

• Visual representation of concepts
• Interactive nodes with relationships
• Hierarchical structure visualization
• React Flow-based implementation

🏗️ Architecture Overview

src/
├── app/                    # Next.js App Router
│   ├── api/                # Serverless API endpoints
│   ├── auth/               # Authentication pages
│   ├── dashboard/          # Main user dashboard
│   └── studypack/          # Study material viewer
├── components/             # Reusable React components
│   ├── dashboard/          # Dashboard-specific components
│   ├── landing/            # Landing page components
│   ├── flashcards/         # Flashcard study interface
│   ├── mindmap/            # Mind map visualization components
│   ├── quiz/               # Quiz components
│   └── studyPack/          # Study pack viewer components
│   ├── ui/                 # Base UI components (Radix)
├── lib/                    # Utility functions and configs
│   ├── auth/               # Authentication helpers
│   ├── contentUpload/      # Content processing utilities
│   ├── flashCards/         # Flashcard generation logic
│   ├── langchain/          # Gemini Calls
│   └── quizzes/            # Quiz generation
├── hooks/                  # Custom React hooks
└── contexts/               # React Context providers