Integration Examples

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import {IBROOracle} from "./IBROOracle.sol";

contract RiskAwareLending {
    IBROOracle immutable registry;

    constructor(address _registry) {
        registry = IBROOracle(_registry);
    }

    function getCollateralHaircut(
        string calldata slug
    ) external view returns (uint256 haircutBps) {
        (uint16 bri, uint8 forgeScale,, bool stale) = registry.getScore(slug);

        if (stale) revert StaleOracle();
        if (bri < 650) revert CollateralTooRisky(); // TEMPERED minimum

        // Base haircut: lower BRI = more haircut
        haircutBps = (1000 - bri) * 3; // 0-2100 bps

        // Forge Scale penalty: RAW/CAST get extra haircut
        if (forgeScale <= 2) haircutBps += 500;

        // Per-dimension check: D12 Cascade Exposure
        uint16 cascadeScore = registry.getDimension(slug, 11);
        if (cascadeScore < 50) haircutBps += (50 - cascadeScore) * 20;
    }

    function getMarginRequirement(
        string calldata slug
    ) external view returns (uint256 marginPct) {
        // D3 (Oracle Integrity) matters most for perps pricing
        uint16 oracleScore = registry.getDimension(slug, 2);
        uint16 cascadeScore = registry.getDimension(slug, 11);

        // Get composite
        (uint16 bri,,,) = registry.getScore(slug);

        // Re-weight: 40% oracle, 30% cascade, 30% composite
        uint256 weighted = (uint256(oracleScore) * 40
            + uint256(cascadeScore) * 30
            + uint256(bri - 300) * 30 / 7) / 100;

        // 100/100 = 5% margin, 50/100 = 10%, 0/100 = 20%
        marginPct = 500 + (100 - weighted) * 15;
    }

    error StaleOracle();
    error CollateralTooRisky();
}