239 lines
8.3 KiB
Solidity
239 lines
8.3 KiB
Solidity
/*
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Copyright 2020 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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pragma experimental ABIEncoderV2;
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import {IQuota} from "../../DODOFee/UserQuota.sol";
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import {SafeMath} from "../../lib/SafeMath.sol";
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import {DecimalMath} from "../../lib/DecimalMath.sol";
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import {IERC20} from "../../intf/IERC20.sol";
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import {SafeERC20} from "../../lib/SafeERC20.sol";
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import {Vesting} from "./Vesting.sol";
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import {IDVM} from "../../DODOVendingMachine/intf/IDVM.sol";
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import {IDVMFactory} from "../../Factory/DVMFactory.sol";
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contract InstantFunding is Vesting {
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using SafeMath for uint256;
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using SafeERC20 for IERC20;
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// ============ Instant Commit Mode ============
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uint256 public _START_PRICE_;
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uint256 public _END_PRICE_;
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mapping(address => uint256) _FUNDS_USED_;
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// mapping(address => uint256) _FUNDS_UNUSED_;
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mapping(address => uint256) _TOKEN_ALLOCATION_;
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uint256 public _TOTAL_ALLOCATED_TOKEN_;
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// ============ Init ============
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function init(
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address[] calldata addressList,
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uint256[] calldata timeLine,
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uint256[] calldata valueList
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) external {
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/*
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Address List
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0. owner
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1. sellToken
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2. fundToken
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3. quotaManager
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4. poolFactory
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*/
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require(addressList.length == 5, "ADDR_LENGTH_WRONG");
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initOwner(addressList[0]);
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_TOKEN_ADDRESS_ = addressList[1];
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_FUNDS_ADDRESS_ = addressList[2];
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_QUOTA_ = addressList[3];
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_POOL_FACTORY_ = addressList[4];
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/*
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Time Line
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0. starttime
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1. bid duration
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2. token vesting starttime
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3. token vesting duration
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4. fund vesting starttime
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5. fund vesting duration
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6. lp vesting starttime
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7. lp vesting duration
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*/
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require(timeLine.length == 8, "TIME_LENGTH_WRONG");
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_START_TIME_ = timeLine[0];
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_BIDDING_DURATION_ = timeLine[1];
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_TOKEN_VESTING_START_ = timeLine[2];
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_TOKEN_VESTING_DURATION_ = timeLine[3];
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_FUNDS_VESTING_START_ = timeLine[4];
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_FUNDS_VESTING_DURATION_ = timeLine[5];
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_LP_VESTING_START_ = timeLine[6];
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_LP_VESTING_DURATION_ = timeLine[7];
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require(block.timestamp <= _START_TIME_, "START_TIME_WRONG");
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require(_START_TIME_.add(_BIDDING_DURATION_) <= _TOKEN_VESTING_START_, "TOKEN_VESTING_TIME_WRONG");
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require(_START_TIME_.add(_BIDDING_DURATION_) <= _FUNDS_VESTING_START_, "FUND_VESTING_TIME_WRONG");
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require(_START_TIME_.add(_BIDDING_DURATION_) <= _LP_VESTING_START_, "LP_VESTING_TIME_WRONG");
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/*
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Value List
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0. start price
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1. end price
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2. token cliffRate
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3. fund cliffRate
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4. lp cliffRate
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5. initial liquidity
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*/
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require(valueList.length == 6, "VALUE_LENGTH_WRONG");
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_START_PRICE_ = valueList[0];
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_END_PRICE_ = valueList[1];
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_TOKEN_CLIFF_RATE_ = valueList[2];
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_FUNDS_CLIFF_RATE_ = valueList[3];
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_LP_CLIFF_RATE_ = valueList[4];
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_INITIAL_FUND_LIQUIDITY_ = valueList[5];
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require(_START_PRICE_ > 0, "START_PRICE_INVALID");
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require(_END_PRICE_ > 0, "END_PRICE_INVALID");
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require(_TOKEN_CLIFF_RATE_ <= 1e18, "TOKEN_CLIFF_RATE_WRONG");
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require(_FUNDS_CLIFF_RATE_ <= 1e18, "FUND_CLIFF_RATE_WRONG");
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require(_LP_CLIFF_RATE_ <= 1e18, "LP_CLIFF_RATE_WRONG");
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_TOTAL_TOKEN_AMOUNT_ = IERC20(_TOKEN_ADDRESS_).balanceOf(address(this));
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require(_TOTAL_TOKEN_AMOUNT_ > 0, "NO_TOKEN_TRANSFERED");
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}
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// ============ View Functions ============
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function getCurrentPrice() public view returns (uint256 price) {
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if (block.timestamp <= _START_TIME_) {
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price = _START_PRICE_;
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} else if (block.timestamp >= _START_TIME_.add(_BIDDING_DURATION_)) {
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price = _END_PRICE_;
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} else {
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uint256 timePast = block.timestamp.sub(_START_TIME_);
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price = _START_PRICE_.mul(_BIDDING_DURATION_.sub(timePast)).div(_BIDDING_DURATION_).add(
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_END_PRICE_.mul(timePast).div(_BIDDING_DURATION_)
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);
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}
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}
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function getUserTokenAllocation(address user) public view returns (uint256) {
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return _TOKEN_ALLOCATION_[user];
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}
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// function getUserFundsUnused(address user) public view returns (uint256) {
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// return _FUNDS_UNUSED_[user];
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// }
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function getUserFundsUsed(address user) public view returns (uint256) {
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return _FUNDS_USED_[user];
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}
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// ============ Funding Functions ============
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function depositFunds(address to)
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external
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preventReentrant
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isForceStop
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returns (uint256 newTokenAllocation)
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{
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require(isDepositOpen(), "DEPOSIT_NOT_OPEN");
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// input fund check
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uint256 inputFund = IERC20(_FUNDS_ADDRESS_).balanceOf(address(this)).sub(_FUNDS_RESERVE_);
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if (_QUOTA_ != address(0)) {
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require(
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inputFund.add(_FUNDS_USED_[to]) <= uint256(IQuota(_QUOTA_).getUserQuota(to)),
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"QUOTA_EXCEED"
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);
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}
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// allocation calculation
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uint256 currentPrice = getCurrentPrice();
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newTokenAllocation = DecimalMath.divFloor(inputFund, currentPrice);
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if (newTokenAllocation.add(_TOTAL_ALLOCATED_TOKEN_) > _TOTAL_TOKEN_AMOUNT_) {
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newTokenAllocation = _TOTAL_TOKEN_AMOUNT_.sub(_TOTAL_ALLOCATED_TOKEN_);
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uint256 fundUsed = DecimalMath.mulFloor(newTokenAllocation, currentPrice);
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_FUNDS_USED_[to] = _FUNDS_USED_[to].add(fundUsed);
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_TOTAL_RAISED_FUNDS_ = _TOTAL_RAISED_FUNDS_.add(fundUsed);
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_FUNDS_RESERVE_ = _FUNDS_RESERVE_.add(fundUsed);
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IERC20(_FUNDS_ADDRESS_).safeTransfer(to, inputFund.sub(fundUsed));
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// _FUNDS_UNUSED_[to] = _FUNDS_UNUSED_[to].add(inputFund.sub(fundUsed));
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} else {
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_FUNDS_USED_[to] = _FUNDS_USED_[to].add(inputFund);
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_TOTAL_RAISED_FUNDS_ = _TOTAL_RAISED_FUNDS_.add(inputFund);
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_FUNDS_RESERVE_ = _FUNDS_RESERVE_.add(inputFund);
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}
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_TOKEN_ALLOCATION_[to] = _TOKEN_ALLOCATION_[to].add(newTokenAllocation);
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_TOTAL_ALLOCATED_TOKEN_ = _TOTAL_ALLOCATED_TOKEN_.add(newTokenAllocation);
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}
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// function withdrawFunds(address to, uint256 amount) external preventReentrant {
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// require(_FUNDS_UNUSED_[msg.sender] >= amount, "UNUSED_FUND_NOT_ENOUGH");
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// _FUNDS_UNUSED_[msg.sender] = _FUNDS_UNUSED_[msg.sender].sub(amount);
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// _FUNDS_RESERVE_ = _FUNDS_RESERVE_.sub(amount);
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// IERC20(_FUNDS_ADDRESS_).safeTransfer(to, amount);
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// }
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function withdrawUnallocatedToken(address to) external preventReentrant onlyOwner {
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require(isFundingEnd(), "CAN_NOT_WITHDRAW");
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IERC20(_TOKEN_ADDRESS_).safeTransfer(to, _TOTAL_TOKEN_AMOUNT_.sub(_TOTAL_ALLOCATED_TOKEN_));
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_TOTAL_TOKEN_AMOUNT_ = _TOTAL_ALLOCATED_TOKEN_;
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}
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function initializeLiquidity(uint256 initialTokenAmount, uint256 lpFeeRate, bool isOpenTWAP) external preventReentrant onlyOwner {
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require(isFundingEnd(),"FUNDING_NOT_FINISHED");
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_INITIAL_POOL_ = IDVMFactory(_POOL_FACTORY_).createDODOVendingMachine(
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_TOKEN_ADDRESS_,
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_FUNDS_ADDRESS_,
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lpFeeRate,
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1,
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DecimalMath.ONE,
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isOpenTWAP
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);
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IERC20(_TOKEN_ADDRESS_).transferFrom(msg.sender, _INITIAL_POOL_, initialTokenAmount);
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if(_TOTAL_RAISED_FUNDS_ > _INITIAL_FUND_LIQUIDITY_) {
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IERC20(_FUNDS_ADDRESS_).transfer(_INITIAL_POOL_, _INITIAL_FUND_LIQUIDITY_);
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}else {
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IERC20(_FUNDS_ADDRESS_).transfer(_INITIAL_POOL_, _TOTAL_RAISED_FUNDS_);
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}
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(_TOTAL_LP_, , ) = IDVM(_INITIAL_POOL_).buyShares(address(this));
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}
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function claimToken(address to) external {
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uint256 totalAllocation = getUserTokenAllocation(msg.sender);
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_claimToken(to, totalAllocation);
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}
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// ============ Timeline Control Functions ============
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function isDepositOpen() public view returns (bool) {
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return
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block.timestamp >= _START_TIME_ &&
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block.timestamp < _START_TIME_.add(_BIDDING_DURATION_);
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}
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function isFundingEnd() public view returns (bool) {
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return block.timestamp > _START_TIME_.add(_BIDDING_DURATION_);
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}
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}
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