2. System Architecture

High-Level Architecture

The OmniLink protocol consists of five core layers:

┌─────────────────────────────────┐
│         User Interface Layer    │
└───────────────┬─────────────────┘
                │
┌───────────────▼─────────────────┐
│     Protocol Coordination Layer  │
└───────────────┬─────────────────┘
                │
┌───────────────▼─────────────────┐
│      Liquidity Management Layer  │
└───────────┬───────────┬─────────┘
            │           │
┌───────────▼───┐   ┌───▼───────────┐
│ Flash Loan    │   │ Bridge        │
│ Provider Layer│   │ Adapter Layer │
└───────────────┘   └───────────────┘

Cross-Chain Architecture

graph TD
    subgraph "Ethereum"
        E_FLH[Flash Loan Handler]
        E_BA[Bridge Adapter]
    end
    
    subgraph "Arbitrum"
        A_RLP[Recycling Liquidity Pool]
        A_OR[Operation Registry]
        A_BA[Bridge Adapter]
    end
    
    subgraph "Optimism"
        O_RLP[Recycling Liquidity Pool]
        O_OR[Operation Registry]
        O_BA[Bridge Adapter]
    end
    
    E_FLH -- "Source Chain TX" --> E_BA
    E_BA -- "Bridge TX" --> A_BA & O_BA
    A_BA -- "Settlement" --> A_RLP
    O_BA -- "Settlement" --> O_RLP
    A_RLP -- "Instant Tokens" --> User
    O_RLP -- "Instant Tokens" --> User

Data Flow Diagram

sequenceDiagram
    participant User
    participant Source Chain UI
    participant Flash Loan Handler
    participant Bridge System
    participant Destination Chain
    participant Recycling Pool
    
    User->>Source Chain UI: Initiate cross-chain swap
    Source Chain UI->>Flash Loan Handler: Request flash loan
    Flash Loan Handler->>Flash Loan Handler: Take flash loan
    Flash Loan Handler->>Bridge System: Send tokens to bridge
    Bridge System-->>Bridge System: Begin cross-chain transfer
    Destination Chain->>Recycling Pool: Request token release
    Recycling Pool->>User: Instant token delivery
    
    Note over Bridge System,Recycling Pool: Background Settlement
    Bridge System->>Destination Chain: Complete token transfer (minutes later)
    Destination Chain->>Recycling Pool: Replenish pool

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