115 lines
4.3 KiB
Solidity
115 lines
4.3 KiB
Solidity
/*
|
|
|
|
Copyright 2020 DODO ZOO.
|
|
SPDX-License-Identifier: Apache-2.0
|
|
|
|
*/
|
|
|
|
pragma solidity 0.6.9;
|
|
pragma experimental ABIEncoderV2;
|
|
|
|
import {Storage} from "./Storage.sol";
|
|
import {SafeMath} from "../../lib/SafeMath.sol";
|
|
import {DecimalMath} from "../../lib/DecimalMath.sol";
|
|
import {IERC20} from "../../intf/IERC20.sol";
|
|
import {SafeERC20} from "../../lib/SafeERC20.sol";
|
|
import {IDVM} from "../../DODOVendingMachine/intf/IDVM.sol";
|
|
import {IDVMFactory} from "../../Factory/DVMFactory.sol";
|
|
|
|
contract Vesting is Storage {
|
|
using SafeMath for uint256;
|
|
using SafeERC20 for IERC20;
|
|
|
|
// ============ Events ============
|
|
event ClaimLpToken(address indexed to, uint256 lpAmount);
|
|
|
|
function claimLp(address to) external preventReentrant onlyOwner {
|
|
require(_INITIAL_POOL_ != address(0), "LIQUIDITY_NOT_ESTABLISHED");
|
|
uint256 remainingLp = DecimalMath.mulFloor(
|
|
getRemainingRatio(block.timestamp,2),
|
|
_TOTAL_LP_
|
|
);
|
|
uint256 claimableLp = _TOTAL_LP_.sub(remainingLp).sub(_CLAIMED_LP_);
|
|
|
|
_CLAIMED_LP_ = _CLAIMED_LP_.add(claimableLp);
|
|
IERC20(_INITIAL_POOL_).safeTransfer(to, claimableLp);
|
|
|
|
emit ClaimLpToken(to, claimableLp);
|
|
}
|
|
|
|
//tokenType 0: BaseToken, 1: Fund, 2: LpToken
|
|
function getRemainingRatio(uint256 timestamp, uint256 tokenType) public view returns (uint256) {
|
|
uint256 vestingStart;
|
|
uint256 vestingDuration;
|
|
uint256 cliffRate;
|
|
|
|
if(tokenType == 0) {
|
|
vestingStart = _TOKEN_VESTING_START_;
|
|
vestingDuration = _TOKEN_VESTING_DURATION_;
|
|
cliffRate = _TOKEN_CLIFF_RATE_;
|
|
} else if(tokenType == 1) {
|
|
vestingStart = _FUNDS_VESTING_START_;
|
|
vestingDuration = _FUNDS_VESTING_DURATION_;
|
|
cliffRate = _FUNDS_CLIFF_RATE_;
|
|
} else {
|
|
vestingStart = _LP_VESTING_START_;
|
|
vestingDuration = _LP_VESTING_DURATION_;
|
|
cliffRate = _LP_CLIFF_RATE_;
|
|
}
|
|
|
|
require(timestamp >= vestingStart, "NOT_START_TO_CLAIM");
|
|
|
|
uint256 timePast = timestamp.sub(vestingStart);
|
|
if (timePast < vestingDuration) {
|
|
uint256 remainingTime = vestingDuration.sub(timePast);
|
|
return DecimalMath.ONE.sub(cliffRate).mul(remainingTime).div(vestingDuration);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
// ============ Internal Function ============
|
|
function _claimToken(address to, uint256 totalAllocation) internal returns(uint256 claimableTokenAmount) {
|
|
uint256 remainingToken = DecimalMath.mulFloor(
|
|
getRemainingRatio(block.timestamp,0),
|
|
totalAllocation
|
|
);
|
|
claimableTokenAmount = totalAllocation.sub(remainingToken).sub(_CLAIMED_TOKEN_[msg.sender]);
|
|
_CLAIMED_TOKEN_[msg.sender] = _CLAIMED_TOKEN_[msg.sender].add(claimableTokenAmount);
|
|
IERC20(_TOKEN_ADDRESS_).safeTransfer(to,claimableTokenAmount);
|
|
}
|
|
|
|
function _claimFunds(address to, uint256 totalUsedRaiseFunds) internal returns(uint256 claimableFund) {
|
|
require(totalUsedRaiseFunds > _INITIAL_FUND_LIQUIDITY_, "FUND_NOT_ENOUGH");
|
|
uint256 vestingFunds = totalUsedRaiseFunds.sub(_INITIAL_FUND_LIQUIDITY_);
|
|
uint256 remainingFund = DecimalMath.mulFloor(
|
|
getRemainingRatio(block.timestamp,1),
|
|
vestingFunds
|
|
);
|
|
claimableFund = vestingFunds.sub(remainingFund).sub(_CLAIMED_FUNDS_);
|
|
_CLAIMED_FUNDS_ = _CLAIMED_FUNDS_.add(claimableFund);
|
|
IERC20(_FUNDS_ADDRESS_).safeTransfer(to, claimableFund);
|
|
}
|
|
|
|
function _initializeLiquidity(uint256 initialTokenAmount, uint256 totalUsedRaiseFunds, uint256 lpFeeRate, bool isOpenTWAP) internal {
|
|
_INITIAL_POOL_ = IDVMFactory(_POOL_FACTORY_).createDODOVendingMachine(
|
|
_TOKEN_ADDRESS_,
|
|
_FUNDS_ADDRESS_,
|
|
lpFeeRate,
|
|
1,
|
|
DecimalMath.ONE,
|
|
isOpenTWAP
|
|
);
|
|
IERC20(_TOKEN_ADDRESS_).safeTransferFrom(msg.sender, _INITIAL_POOL_, initialTokenAmount);
|
|
|
|
if(totalUsedRaiseFunds > _INITIAL_FUND_LIQUIDITY_) {
|
|
IERC20(_FUNDS_ADDRESS_).safeTransfer(_INITIAL_POOL_, _INITIAL_FUND_LIQUIDITY_);
|
|
}else {
|
|
IERC20(_FUNDS_ADDRESS_).safeTransfer(_INITIAL_POOL_, totalUsedRaiseFunds);
|
|
}
|
|
|
|
(_TOTAL_LP_, , ) = IDVM(_INITIAL_POOL_).buyShares(address(this));
|
|
}
|
|
}
|