// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "./IListingController.sol";

abstract contract ListingController is IListingController, ERC165 {
    /**
     * A constant that represents one hundred percent for calculation.
     * This defines a calculation precision for percentage values as two decimals.
     * For example: 1 is 0.01%, 100 is 1%, 10_000 is 100%.
     */
    uint16 public constant HUNDRED_PERCENT = 10_000;

    /**
     * @inheritdoc IERC165
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
        return interfaceId == type(IListingController).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @inheritdoc IListingController
     */
    function strategyId() public pure virtual returns (bytes4);
}