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TryExStake.sol
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TryExStake.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.11;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Pausable is Context {
event Paused(address account);
event Unpaused(address account);
bool private _paused;
constructor() {
_paused = false;
}
modifier whenNotPaused() {
_requireNotPaused();
_;
}
modifier whenPaused() {
_requirePaused();
_;
}
function paused() public view virtual returns (bool) {
return _paused;
}
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
_status = _NOT_ENTERED;
}
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
interface Token {
function transfer(address recipient, uint256 amount) external returns (bool);
function balanceOf(address account) external view returns (uint256);
function transferFrom(address sender, address recipient, uint256 amount) external returns (uint256);
}
contract TryExStake is Pausable, Ownable, ReentrancyGuard {
Token TryEx;
uint256 public planDuration = 432000;
uint256 _planExpired = 600000000000;
uint8 public interestRate = 1;
uint256 public planExpired;
uint8 public totalStakers;
struct StakeInfo {
uint256 startTS;
uint256 endTS;
uint256 amount;
uint256 claimed;
}
event Staked(address indexed from, uint256 amount);
event Claimed(address indexed from, uint256 amount);
mapping(address => StakeInfo) public stakeInfos;
mapping(address => bool) public addressStaked;
constructor(Token _tokenAddress) {
require(address(_tokenAddress) != address(0),"Token Address cannot be address 0");
TryEx = _tokenAddress;
planExpired = block.timestamp + _planExpired;
totalStakers = 0;
}
function transferToken(address to,uint256 amount) external onlyOwner{
require(TryEx.transfer(to, amount), "Token transfer failed!");
}
function claimReward() external returns (bool){
require(addressStaked[_msgSender()] == true, "You are not enrolled");
require(stakeInfos[_msgSender()].endTS < block.timestamp, "Stake in progress!");
require(stakeInfos[_msgSender()].claimed == 0, "Already claimed!");
uint256 stakeAmount = stakeInfos[_msgSender()].amount;
uint256 totalTokens = stakeAmount + (stakeAmount * interestRate / 100);
stakeInfos[_msgSender()].claimed == totalTokens;
TryEx.transfer(_msgSender(), totalTokens);
emit Claimed(_msgSender(), totalTokens);
return true;
}
function getTokenExpiry() external view returns (uint256) {
require(addressStaked[_msgSender()] == true, "You have not staked");
return stakeInfos[_msgSender()].endTS;
}
function stakeToken(uint256 stakeAmount) external payable whenNotPaused {
require(stakeAmount >0, "Stake amount should be correct");
require(block.timestamp < planExpired , "Plan Expired");
require(addressStaked[_msgSender()] == false, "You are already staked");
require(TryEx.balanceOf(_msgSender()) >= stakeAmount, "Insufficient Balance");
TryEx.transferFrom(_msgSender(), address(this), stakeAmount);
totalStakers++;
addressStaked[_msgSender()] = true;
stakeInfos[_msgSender()] = StakeInfo({
startTS: block.timestamp,
endTS: block.timestamp + planDuration,
amount: stakeAmount,
claimed: 0
});
emit Staked(_msgSender(), stakeAmount);
}
function pause() external onlyOwner {
_pause();
}
function unpause() external onlyOwner {
_unpause();
}
}