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pragma solidity ^0.4.11;
import '../math/SafeMath.sol';
import '../ownership/Ownable.sol';
/**
* @title RefundVault
* @dev This contract is used for storing funds while a crowdsale
* is in progress. Supports refunding the money if crowdsale fails,
* and forwarding it if crowdsale is successful.
*/
contract RefundVault is Ownable {
using SafeMath for uint256;
enum State { Active, Refunding, Closed }
mapping (address => uint256) public deposited;
address payable public wallet;
State public state;
event Closed();
event RefundsEnabled();
event Refunded(address indexed beneficiary, uint256 weiAmount);
constructor(address payable _wallet) public {
require(_wallet != address(0x0));
wallet = _wallet;
state = State.Active;
}
function deposit(address payable investor) public onlyOwner payable {
require(state == State.Active);
deposited[investor] = deposited[investor].add(msg.value);
}
function close() public onlyOwner {
require(state == State.Active);
state = State.Closed;
emit Closed();
wallet.transfer(address(this).balance);
}
function enableRefunds() public onlyOwner {
require(state == State.Active);
state = State.Refunding;
emit RefundsEnabled();
}
function refund(address payable investor) public {
require(state == State.Refunding);
uint256 depositedValue = deposited[investor];
deposited[investor] = 0;
investor.transfer(depositedValue);
emit Refunded(investor, depositedValue);
}
}
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