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

interface IPolicyManager {
    // token config getters
    function isPaused(address token) external view returns (bool);

    function bridgeOnly(address token) external view returns (bool);

    function bridge(address token) external view returns (address);

    function lienMode(address token) external view returns (uint8); // 0 off, 1 hard, 2 encumbered

    function isTokenFrozen(address token, address account) external view returns (bool);

    // decision
    function canTransfer(
        address token,
        address from,
        address to,
        uint256 amount
    ) external view returns (bool allowed, bytes32 reasonCode);

    // setters
    function setPaused(address token, bool paused) external;

    function setBridgeOnly(address token, bool enabled) external;

    function setBridge(address token, address bridgeAddr) external;

    function setLienMode(address token, uint8 mode) external;

    function freeze(address token, address account, bool frozen) external;

    event TokenPaused(address indexed token, bool paused);

    event BridgeOnlySet(address indexed token, bool enabled);

    event BridgeSet(address indexed token, address bridge);

    event LienModeSet(address indexed token, uint8 mode);

    event TokenFreeze(address indexed token, address indexed account, bool frozen);

    event TokenConfigured(address indexed token, bool paused, bool bridgeOnly, address bridge, uint8 lienMode);
}