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66 lines
1.6 KiB
66 lines
1.6 KiB
pragma solidity ^0.4.23;
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import "../../../math/SafeMath.sol";
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import "../../../ownership/Ownable.sol";
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/**
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* @title RefundVault
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* @dev This contract is used for storing funds while a crowdsale
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* is in progress. Supports refunding the money if crowdsale fails,
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* and forwarding it if crowdsale is successful.
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*/
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contract RefundVault is Ownable {
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using SafeMath for uint256;
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enum State { Active, Refunding, Closed }
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mapping (address => uint256) public deposited;
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address public wallet;
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State public state;
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event Closed();
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event RefundsEnabled();
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event Refunded(address indexed beneficiary, uint256 weiAmount);
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/**
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* @param _wallet Vault address
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*/
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constructor(address _wallet) public {
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require(_wallet != address(0));
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wallet = _wallet;
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state = State.Active;
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}
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/**
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* @param investor Investor address
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*/
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function deposit(address investor) onlyOwner public payable {
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require(state == State.Active);
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deposited[investor] = deposited[investor].add(msg.value);
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}
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function close() onlyOwner public {
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require(state == State.Active);
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state = State.Closed;
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emit Closed();
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wallet.transfer(address(this).balance);
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}
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function enableRefunds() onlyOwner public {
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require(state == State.Active);
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state = State.Refunding;
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emit RefundsEnabled();
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}
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/**
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* @param investor Investor address
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*/
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function refund(address investor) public {
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require(state == State.Refunding);
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uint256 depositedValue = deposited[investor];
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deposited[investor] = 0;
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investor.transfer(depositedValue);
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emit Refunded(investor, depositedValue);
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}
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}
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