smom-dbis-138/contracts/emoney/interfaces/IDebtRegistry.sol

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

interface IDebtRegistry {
    struct Lien {
        address debtor;
        uint256 amount;
        uint64 expiry; // 0 = no expiry
        uint8 priority;
        address authority;
        bytes32 reasonCode;
        bool active;
    }

    function activeLienAmount(address debtor) external view returns (uint256);

    function hasActiveLien(address debtor) external view returns (bool);

    function activeLienCount(address debtor) external view returns (uint256);

    function getLien(uint256 lienId) external view returns (Lien memory);

    function placeLien(
        address debtor,
        uint256 amount,
        uint64 expiry,
        uint8 priority,
        bytes32 reasonCode
    ) external returns (uint256 lienId);

    function reduceLien(uint256 lienId, uint256 reduceBy) external;

    function releaseLien(uint256 lienId) external;

    event LienPlaced(
        uint256 indexed lienId,
        address indexed debtor,
        uint256 amount,
        uint64 expiry,
        uint8 priority,
        address indexed authority,
        bytes32 reasonCode
    );

    event LienReduced(uint256 indexed lienId, uint256 reduceBy, uint256 newAmount);

    event LienReleased(uint256 indexed lienId);
}