// SPDX-License-Identifier: UNLICENSED

pragma solidity =0.8.18;

library Percent {
    uint256 internal constant BASE_PERCENT = type(uint16).max;

    function isValidPercent(uint256 nb) internal pure returns (bool) {
        return nb <= BASE_PERCENT;
    }

    function validatePercent(uint256 nb) internal pure {
        require(isValidPercent(nb), "Percent: INVALID_NUMBER");
    }

    function applyPercent(uint256 nb, uint256 _percent) internal pure returns (uint256) {
        return (nb * _percent) / BASE_PERCENT;
    }

    function inverseApplyPercent(uint256 nb, uint256 _percent) internal pure returns (uint256) {
        return asPercent(nb) / (_percent);
    }

    function percentValueOf(uint256 value, uint256 total) internal pure returns (uint256) {
        return asPercent(value) / total;
    }

    function asPercent(uint256 value) internal pure returns (uint256) {
        return value * BASE_PERCENT;
    }
}