codex-contracts-eth/contracts/Stakes.sol

39 lines
914 B
Solidity

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