41 lines
1.0 KiB
Solidity
41 lines
1.0 KiB
Solidity
|
// 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);
|
||
|
|
}
|
||
|
|
}
|