codex-contracts-eth/contracts/Periods.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;
contract Periods {
type Period is uint256;
uint256 internal immutable _secondsPerPeriod;
constructor(uint256 secondsPerPeriod) {
_secondsPerPeriod = secondsPerPeriod;
}
function _periodOf(uint256 timestamp) internal view returns (Period) {
return Period.wrap(timestamp / _secondsPerPeriod);
}
function _blockPeriod() internal view returns (Period) {
return _periodOf(block.timestamp);
}
function _nextPeriod(Period period) internal pure returns (Period) {
return Period.wrap(Period.unwrap(period) + 1);
}
function _periodStart(Period period) internal view returns (uint256) {
return Period.unwrap(period) * _secondsPerPeriod;
}
function _periodEnd(Period period) internal view returns (uint256) {
return _periodStart(_nextPeriod(period));
}
function _isBefore(Period a, Period b) internal pure returns (bool) {
return Period.unwrap(a) < Period.unwrap(b);
}
function _isAfter(Period a, Period b) internal pure returns (bool) {
return _isBefore(b, a);
}
}