Contract Name:
VestingControlV2
Contract Source Code:
File 1 of 1 : VestingControlV2
// Sources flattened with hardhat v2.19.3 https://hardhat.org
// SPDX-License-Identifier: MIT AND UNLICENSED
// File @openzeppelin/contracts/utils/[email protected]
// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File @openzeppelin/contracts/access/[email protected]
// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File @openzeppelin/contracts/security/[email protected]
// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// File @openzeppelin/contracts/token/ERC20/[email protected]
// Original license: SPDX_License_Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// File contracts/VestingControlV2.sol
// Original license: SPDX_License_Identifier: UNLICENSED
pragma solidity =0.8.19;
contract VestingControlV2 is Ownable, ReentrancyGuard {
event Transfer(address indexed to, uint256 token);
string magic = "9cYj17lrpiKd0uPS";
address public tokenAddr; // erc20 token address, decimals 1e18
int8 public roundLatest = -1; // round is start at 0
struct RoundOpt {
uint256 startTime; // round start at
uint256 endTime; // round end at
uint256 totalSupply; // total erc20 token supply for this round
uint256 raiseCap; // total raise cap, 0 means nolimit
uint256 perUnit; // token amount = perUnit * 1ETH, 0 means we should wait for the round to end
uint256 minBuy; // minimun amount per wallet
uint256 maxBuy; // maximum amount per wallet, 0 means nolimit
address signerAddress; // signer for whitelist, empty means nolimit
// vesting period
uint256 vestingStartTime; // vestingStartTime > tokenReleaseAt
uint256 vestingEndTime; //
uint256 tgeStartTime;
uint256 tgePerc; // 0~100
}
struct RoundStat {
uint256 totalRaised; // eth
uint256 totalToken; // token
uint256 totalClaim; // token
}
struct Wallet {
uint256 totalDeposited; // eth
uint256 totalToken; // token
uint256 totalClaim; // token
}
struct Vesting {
uint256 amount;
address beneficary;
}
mapping(int8 => RoundOpt) public roundOpts;
mapping(int8 => RoundStat) public roundStat;
mapping(int8 => mapping(address => Wallet)) public wallets;
constructor(address _tokenAddr) {
tokenAddr = _tokenAddr;
}
// ============= State Function =============
function currentRound() public view returns (int8) {
int8 _currentRound = -1;
for (int8 roundNum = 0; roundNum <= roundLatest; roundNum++) {
RoundOpt storage opt = roundOpts[roundNum];
if (opt.startTime <= block.timestamp) {
_currentRound = roundNum;
}
}
return _currentRound;
}
// ============= Exchange Function =============
// ============= Claim Fuciton ===============
// User claim
function totalToken(address addr) external view returns (uint256 deposited, uint256 amount, uint256 claimable, uint256 claimed) {
int8 _currentRound = currentRound();
for (int8 roundNum = 0; roundNum <= _currentRound; roundNum++) {
RoundOpt storage opt = roundOpts[roundNum];
RoundStat storage stat = roundStat[roundNum];
Wallet storage wallet = wallets[roundNum][addr];
amount += _getBoughtToken(wallet, opt, stat);
claimable += _claimableToken(wallet, opt, stat);
claimed += wallet.totalClaim;
deposited += wallet.totalDeposited;
}
return (deposited, amount, claimable, claimed);
}
function _getBoughtToken(
Wallet storage wallet,
RoundOpt storage opt,
RoundStat storage stat
) private view returns (uint256) {
if (opt.perUnit == 0) {
if (opt.endTime > block.timestamp) {
return 0;
} else {
return opt.totalSupply / stat.totalRaised * wallet.totalDeposited;
}
} else {
return wallet.totalToken;
}
}
function _claimableToken(
Wallet storage wallet,
RoundOpt storage opt,
RoundStat storage stat
) private view returns (uint256) {
uint256 _totalToken = _getBoughtToken(wallet, opt, stat);
uint256 vested = getVestedAmount(_totalToken, opt);
require(vested <= _totalToken, "AssertionFailed: vested <= _totalToken");
require(vested >= wallet.totalClaim, "AssertionFailed: vested >= wallet.totalClaim");
return vested - wallet.totalClaim;
}
function getVestedAmount(uint256 boughtAmount, RoundOpt storage opt) private view returns (uint256) {
if (opt.tgeStartTime > block.timestamp) {
return 0;
}
uint256 initVestedAmount = boughtAmount / 100 * opt.tgePerc;
if (block.timestamp < opt.vestingStartTime) {
return initVestedAmount;
}
uint256 vestingAmount = boughtAmount - initVestedAmount;
uint256 vestedAmount = 0;
if (opt.vestingEndTime < block.timestamp) {
vestedAmount = vestingAmount;
} else {
vestedAmount = vestingAmount / (opt.vestingEndTime - opt.vestingStartTime) * (block.timestamp - opt.vestingStartTime);
}
return vestedAmount + initVestedAmount;
}
// claimAll claimable token
function claimAll(address addr) external nonReentrant {
int8 _currentRound = currentRound();
for (int8 roundNum = 0; roundNum <= _currentRound; roundNum++) {
_claim(addr, roundNum);
}
}
function _claim(address addr, int8 roundNum) private {
RoundStat storage stat = roundStat[roundNum];
Wallet storage wallet = wallets[roundNum][addr];
uint256 claimable = _claimableToken(wallet, roundOpts[roundNum], stat);
if (claimable == 0) {
return;
}
wallet.totalClaim += claimable;
stat.totalClaim += claimable;
IERC20(tokenAddr).transfer(addr, claimable);
emit Transfer(addr, claimable);
}
// =========== Admin Fuction (onlyOwner)============
// setup round
function setupRound(
int8 roundNum,
RoundOpt calldata opt
) external onlyOwner {
require(roundNum >= 0 && roundNum <= roundLatest + 1, "Presale: invalid roundNum");
require(
opt.startTime > 0 && opt.endTime > opt.startTime,
"Presale: invalid startTime or endTime"
);
require(opt.minBuy > 0, "Presale: invalid minBuy");
require(
opt.raiseCap >= 0 && opt.totalSupply > 0,
"Presale: invalid raiseCap or totalSupply"
);
if (opt.raiseCap > 0 && opt.totalSupply > 0) {
require(opt.perUnit > 0, "Presale: invalid perUnit");
}
if (roundNum > roundLatest) {
roundLatest = roundNum;
}
roundOpts[roundNum] = opt;
}
function upsertVestings(int8 roundNum, Vesting[] calldata beneficaries) external onlyOwner() {
for (uint256 index = 0; index < beneficaries.length; index++) {
Vesting calldata beneficary = beneficaries[index];
Wallet storage wallet = wallets[roundNum][beneficary.beneficary];
wallet.totalToken = beneficary.amount;
}
}
function updateVestingBeneficary(int8 roundNum, address from, address to) external onlyOwner() {
// copy wallet
Wallet memory wallet = wallets[roundNum][from];
wallets[roundNum][to] = wallet;
// remove amount
wallets[roundNum][from].totalToken = 0;
}
// withdraw
function withdraw() external onlyOwner {
uint256 count = address(this).balance;
(payable(msg.sender)).transfer(count);
}
function withdrawToken(address addr) external onlyOwner {
uint256 count = IERC20(tokenAddr).balanceOf(address(this));
IERC20(tokenAddr).transfer(addr, count);
}
// internal helper
}