46 lines
1.1 KiB
Solidity
46 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
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contract Stakes {
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IERC20 private token;
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mapping(address => uint256) private stakes;
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mapping(address => uint256) private locks;
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constructor(IERC20 __token) {
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token = __token;
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}
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function _token() internal view returns (IERC20) {
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return token;
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}
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function _stake(address account) internal view returns (uint256) {
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return stakes[account];
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}
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function _increaseStake(uint256 amount) internal {
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token.transferFrom(msg.sender, address(this), amount);
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stakes[msg.sender] += amount;
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}
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function _withdrawStake() internal {
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require(locks[msg.sender] == 0, "Stake locked");
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token.transfer(msg.sender, stakes[msg.sender]);
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}
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function _lockStake(address account) internal {
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locks[account] += 1;
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}
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function _unlockStake(address account) internal {
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require(locks[account] > 0, "Stake already unlocked");
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locks[account] -= 1;
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}
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function _slash(address account, uint256 percentage) internal {
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stakes[account] = (stakes[account] * (100 - percentage)) / 100;
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}
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}
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