Ecosyz Architecture Overview

This document provides a comprehensive overview of the Ecosyz platform architecture, design decisions, and technical implementation.

🏗️ System Architecture

High-Level Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Frontend      │    │   Backend       │    │   Database      │
│   (Next.js)     │◄──►│   (API Routes)  │◄──►│   (PostgreSQL)  │
│                 │    │                 │    │                 │
│ • React/TSX     │    │ • REST APIs     │    │ • Prisma ORM    │
│ • Tailwind CSS  │    │ • Auth Logic    │    │ • User Data     │
│ • Components    │    │ • Business Logic│    │ • Resources     │
└─────────────────┘    └─────────────────┘    └─────────────────┘
       │                       │                       │
       └───────────────────────┼───────────────────────┘
                               │
                    ┌─────────────────┐
                    │   External      │
                    │   Services      │
                    │                 │
                    │ • Supabase Auth │
                    │ • AI Services   │
                    │ • Search APIs   │
                    └─────────────────┘

🛠️ Technology Stack

Frontend Layer

• Framework: Next.js 14 (App Router)
• Language: TypeScript
• Styling: Tailwind CSS with custom design system
• State Management: React hooks + server state
• Forms: React Hook Form + Zod validation
• UI Components: Custom component library

Backend Layer

• Runtime: Node.js (Next.js API Routes)
• Authentication: Supabase Auth
• Database: PostgreSQL via Supabase
• ORM: Prisma
• API: RESTful endpoints
• Validation: Zod schemas

External Services

• Authentication: Supabase Auth
• Database: Supabase PostgreSQL
• File Storage: Supabase Storage
• Email: Resend (via Supabase)
• AI Services: OpenAI, custom summarization
• Search: Google Custom Search, arXiv, etc.

📁 Project Structure

Ecosyz/
├── app/                          # Next.js App Router
│   ├── (auth)/                   # Authentication pages
│   ├── (dashboard)/              # Protected pages
│   ├── api/                      # API routes
│   │   ├── auth/                 # Authentication endpoints
│   │   ├── profile/              # Profile management
│   │   ├── search/               # Search functionality
│   │   └── workspaces/           # Workspace management
│   ├── components/               # React components
│   │   ├── ui/                   # Reusable UI components
│   │   ├── auth/                 # Auth-specific components
│   │   └── workspace/            # Workspace components
│   └── globals.css               # Global styles
├── docs/                         # Documentation
├── prisma/                       # Database schema
│   ├── schema.prisma             # Database models
│   └── migrations/               # Database migrations
├── src/                          # Shared utilities
│   ├── lib/                      # Core libraries
│   │   ├── auth.ts               # Authentication helpers
│   │   ├── db.ts                 # Database client
│   │   ├── supabase.ts           # Supabase client
│   │   └── validation.ts         # Zod schemas
│   └── types/                    # TypeScript types
├── public/                       # Static assets
├── tests/                        # Test files
└── types/                        # Global type definitions

🔐 Authentication Architecture

Authentication Flow

1. User Login Request
        ↓
2. Frontend → /api/auth/signin
        ↓
3. Supabase Auth Validation
        ↓
4. JWT Token Generation
        ↓
5. HTTP-Only Cookies Set
        ↓
6. Database User Sync
        ↓
7. Success Response

Session Management

• Storage: HTTP-only cookies (secure, XSS protection)
• Tokens: JWT access + refresh tokens
• Validation: Server-side on each request
• Refresh: Automatic token rotation
• Logout: Cookie clearing + Supabase session termination

Security Features

• Password Hashing: Handled by Supabase
• Token Encryption: JWT with secure signing
• CSRF Protection: SameSite cookie policy
• Rate Limiting: Supabase built-in protection
• Input Validation: Zod schemas on all inputs

🗄️ Database Architecture

Schema Design

-- Core Entities
Users (Supabase Auth) ←→ Profiles (App Data)
    ↓
Workspaces (User's Projects)
    ↓
Resources (Papers, Articles, etc.)
    ↓
Annotations (User Notes)

Key Relationships

• User ↔ Profile: One-to-one (extended user data)
• User ↔ Workspaces: One-to-many (user's projects)
• Workspace ↔ Resources: One-to-many (project contents)
• Resource ↔ Annotations: One-to-many (user notes)

Data Flow

API Request → Validation → Business Logic → Database → Response
    ↓            ↓            ↓            ↓         ↓
 Zod Schema → Auth Check → Service Layer → Prisma → JSON

🔍 Search Architecture

Multi-Source Search

User Query → Search Orchestrator → Multiple APIs
    ↓               ↓                  ↓
  Results → Deduplication → Ranking → Display

Supported Sources

• Academic: arXiv, Semantic Scholar, OpenAlex
• Web: Google Custom Search, Bing
• Code: GitHub Search API
• Media: YouTube Data API

Search Pipeline

1. Query Processing: Parse and normalize search terms
2. Parallel Search: Query multiple APIs simultaneously
3. Deduplication: Remove duplicate results
4. Ranking: Score and sort results
5. Caching: LRU cache for performance

🤖 AI Integration

Summarization Engine

Input Text → Preprocessing → AI Model → Postprocessing → Summary
    ↓            ↓             ↓            ↓            ↓
Clean Text → Chunking → OpenAI API → Formatting → Structured Output

Key Features

• Multi-format Support: PDF, HTML, plain text
• Chunking Strategy: Intelligent text splitting
• Model Selection: GPT-4 for complex, GPT-3.5 for simple
• Caching: Avoid re-processing same content
• Error Handling: Fallback strategies

🚀 Deployment Architecture

Vercel Deployment

Git Push → Vercel Build → Environment Setup → Deployment
    ↓           ↓              ↓               ↓
   main     Build Command   Env Variables   Live Site
 branch     (pnpm build)     (.env files)   (CDN)

Environment Strategy

• Development: Local .env.local
• Preview: Auto-created per PR
• Production: Separate environment variables

Scaling Considerations

• Serverless: Automatic scaling with Vercel
• CDN: Global content delivery
• Database: Supabase handles connection pooling
• Caching: Next.js ISR + Redis (future)

🔧 Development Workflow

Code Quality

# Linting
pnpm lint

# Type checking
pnpx tsc --noEmit

# Testing
pnpm test

# Build verification
pnpm build

Git Workflow

feature-branch → Pull Request → Code Review → Merge to main → Auto-deploy

CI/CD Pipeline

• Linting: ESLint configuration
• Type Check: TypeScript compilation
• Build: Next.js production build
• Deploy: Vercel automatic deployment

📊 Performance Optimization

Frontend Optimizations

• Code Splitting: Route-based splitting
• Image Optimization: Next.js Image component
• Caching: Aggressive caching strategies
• Bundle Analysis: Bundle analyzer integration

Backend Optimizations

• Database Indexing: Optimized queries
• Caching: Redis for frequent data
• API Rate Limiting: Prevent abuse
• Response Compression: Gzip compression

🔮 Future Architecture

Planned Improvements

• Microservices: Split monolithic API
• GraphQL: Replace REST APIs
• Real-time: WebSocket integration
• Advanced AI: Custom model training
• Multi-region: Global deployment

Scalability Roadmap

• Database: Connection pooling, read replicas
• Caching: Redis cluster, CDN optimization
• Monitoring: Application performance monitoring
• Load Balancing: Advanced routing strategies

📚 Documentation Structure

• API Docs: Comprehensive endpoint documentation
• Component Library: Reusable component documentation
• Architecture Decisions: ADRs for major decisions
• Deployment Guide: Infrastructure as code
• Troubleshooting: Common issues and solutions

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This architecture document is living and should be updated as the system evolves.