// Next.js 15 with TypeScript
interface ExchangeInterface {
  framework: "Next.js 15";
  language: "TypeScript";
  styling: "Tailwind CSS";
  stateManagement: "React Context + Zustand";
  realTimeUpdates: "WebSocket + Server-Sent Events";
  walletIntegration: "Web3Modal + WalletConnect";
}

class OrderProcessor {
  async processExchange(order: ExchangeOrder): Promise<OrderResult> {
    // 1. Validate order parameters
    const validation = await this.validateOrder(order);
    if (!validation.isValid) {
      throw new Error(validation.error);
    }
    
    // 2. Lock rates for fixed-rate orders
    if (order.rateType === 'fixed') {
      await this.lockRate(order.pair, order.amount);
    }
    
    // 3. Route through optimal liquidity provider
    const route = await this.findOptimalRoute(order);
    
    // 4. Execute the trade
    return await this.executeTrade(order, route);
  }
}

-- Orders table with partitioning by date
CREATE TABLE orders (
    id BIGSERIAL PRIMARY KEY,
    user_address VARCHAR(42) NOT NULL,
    from_currency VARCHAR(10) NOT NULL,
    to_currency VARCHAR(10) NOT NULL,
    from_amount DECIMAL(36,18) NOT NULL,
    to_amount DECIMAL(36,18) NOT NULL,
    rate_type exchange_rate_type NOT NULL,
    status order_status NOT NULL DEFAULT 'pending',
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    completed_at TIMESTAMP WITH TIME ZONE,
    tx_hash_in VARCHAR(66),
    tx_hash_out VARCHAR(66)
);

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

contract NIFIToken is ERC20, Ownable, ReentrancyGuard {
    // AI Security Parameters
    uint256 public constant MAX_TRANSACTION_PERCENT = 100; // 0.1% of total supply
    uint256 public constant AI_COOLDOWN_PERIOD = 300; // 5 minutes
    
    // Treasury and rewards
    uint256 public treasuryFund;
    uint256 public rewardPool;
    uint256 public weeklyRewardRate = 400; // 4.00%
    
    // AI Integration
    address public aiOracleAddress;
    mapping(address => uint256) public lastTransactionTime;
    mapping(address => bool) public aiWhitelist;
    
    modifier aiSecurityCheck(address from, address to, uint256 amount) {
        require(
            amount <= totalSupply() * MAX_TRANSACTION_PERCENT / 100000,
            "NIFI: Transaction exceeds safety threshold"
        );
        
        require(
            block.timestamp >= lastTransactionTime[from] + AI_COOLDOWN_PERIOD || 
            aiWhitelist[from],
            "NIFI: Transaction cooldown active"
        );
        
        // Request AI analysis for large transactions
        if (amount > totalSupply() * 50 / 100000) { // 0.05% threshold
            bool aiApproval = requestAIAnalysis(from, to, amount);
            require(aiApproval, "NIFI: AI analysis rejected transaction");
        }
        
        lastTransactionTime[from] = block.timestamp;
        _;
    }
    
    function transfer(address to, uint256 amount) 
        public 
        override 
        aiSecurityCheck(msg.sender, to, amount) 
        returns (bool) 
    {
        return super.transfer(to, amount);
    }
}

class AIOracle {
  private ibmMoLM: IBMMoLMClient;
  
  async analyzeTransaction(
    from: string, 
    to: string, 
    amount: bigint
  ): Promise<boolean> {
    // Gather transaction context
    const context = await this.gatherTransactionContext(from, to, amount);
    
    // Prepare AI prompt for analysis
    const prompt = this.buildAnalysisPrompt(context);
    
    try {
      const response = await this.ibmMoLM.chat.completions.create({
        model: "molm-700m-4b",
        messages: [
          {
            role: "system",
            content: "You are an AI security analyst for cryptocurrency transactions."
          },
          {
            role: "user",
            content: prompt
          }
        ],
        temperature: 0.1
      });
      
      const analysis = response.choices[0].message.content;
      return this.parseAIResponse(analysis);
      
    } catch (error) {
      console.error('AI analysis failed:', error);
      return true; // Default approve if AI fails
    }
  }
}

contract NIFICrossChain is OFT {
    function bridgeToken(
        uint16 _dstChainId,
        bytes calldata _toAddress,
        uint256 _amount,
        address payable _refundAddress,
        address _zroPaymentAddress,
        bytes calldata _adapterParams
    ) external payable {
        require(_amount > 0, "Amount must be greater than 0");
        
        // Burn tokens on source chain
        _burn(msg.sender, _amount);
        
        // Send cross-chain message
        _lzSend(
            _dstChainId,
            abi.encode(_toAddress, _amount),
            _refundAddress,
            _zroPaymentAddress,
            _adapterParams
        );
    }
}

contract MultiSigTreasury {
    address[] public owners;
    uint256 public requiredConfirmations;
    
    struct Transaction {
        address to;
        uint256 value;
        bytes data;
        bool executed;
        uint256 confirmations;
    }
    
    function submitTransaction(
        address _to,
        uint256 _value,
        bytes memory _data
    ) public onlyOwner returns (uint256) {
        // Submit transaction for approval
    }
    
    function confirmTransaction(uint256 _txId) public onlyOwner {
        // Confirm pending transaction
    }
}