70 lines
2.2 KiB
Solidity
70 lines
2.2 KiB
Solidity
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/*
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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 {SafeMath} from "../../lib/SafeMath.sol";
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import {DecimalMath} from "../../lib/DecimalMath.sol";
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import {Ownable} from "../../lib/Ownable.sol";
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import {SafeERC20} from "../../lib/SafeERC20.sol";
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import {IERC20} from "../../intf/IERC20.sol";
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import {CAFunding} from "./CAFunding.sol";
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/**
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* @title LockedTokenVault
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* @author DODO Breeder
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*
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* @notice Lock Token and release it linearly
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*/
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contract LockedTokenVault is CAFunding {
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using SafeMath for uint256;
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using SafeERC20 for IERC20;
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// ============ Functions ============
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function claim() external {
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uint256 claimableToken = getClaimableBalance(msg.sender);
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_transferBaseOut(msg.sender, claimableToken);
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_CLAIMED_BALANCES_[msg.sender] = _CLAIMED_BALANCES_[msg.sender].add(claimableToken);
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}
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// ============ View ============
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function getOriginBaseBalance(address user) public view returns (uint256) {
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return _TOTAL_SOLD_BASE_.mul(_QUOTE_SHARES_[user]).div(_TOTAL_QUOTE_SHARES_);
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}
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function getClaimedBaseBalance(address holder) public view returns (uint256) {
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return _CLAIMED_BALANCES_[holder];
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}
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function getClaimableBalance(address holder) public view returns (uint256) {
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uint256 remainingToken = getRemainingBalance(holder);
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return getOriginBaseBalance(holder).sub(remainingToken).sub(_CLAIMED_BALANCES_[holder]);
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}
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function getRemainingBalance(address holder) public view returns (uint256) {
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uint256 remainingRatio = getRemainingRatio(block.timestamp);
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return DecimalMath.mulFloor(getOriginBaseBalance(holder), remainingRatio);
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}
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function getRemainingRatio(uint256 timestamp) public view returns (uint256) {
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if (timestamp < _START_VESTING_TIME_) {
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return DecimalMath.ONE;
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}
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uint256 timePast = timestamp.sub(_START_VESTING_TIME_);
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if (timePast < _VESTING_DURATION_) {
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uint256 remainingTime = _VESTING_DURATION_.sub(timePast);
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return DecimalMath.ONE.sub(_CLIFF_RATE_).mul(remainingTime).div(_VESTING_DURATION_);
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} else {
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return 0;
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}
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}
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}
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