50 lines
1.3 KiB
Solidity
50 lines
1.3 KiB
Solidity
pragma solidity ^0.4.24;
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import "../math/SafeMath.sol";
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import "../ownership/Secondary.sol";
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/**
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* @title Escrow
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* @dev Base escrow contract, holds funds destinated to a payee until they
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* withdraw them. The contract that uses the escrow as its payment method
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* should be its primary, and provide public methods redirecting to the escrow's
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* deposit and withdraw.
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*/
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contract Escrow is Secondary {
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using SafeMath for uint256;
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event Deposited(address indexed payee, uint256 weiAmount);
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event Withdrawn(address indexed payee, uint256 weiAmount);
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mapping(address => uint256) private _deposits;
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function depositsOf(address payee) public view returns (uint256) {
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return _deposits[payee];
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}
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/**
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* @dev Stores the sent amount as credit to be withdrawn.
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* @param payee The destination address of the funds.
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*/
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function deposit(address payee) public onlyPrimary payable {
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uint256 amount = msg.value;
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_deposits[payee] = _deposits[payee].add(amount);
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emit Deposited(payee, amount);
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}
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/**
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* @dev Withdraw accumulated balance for a payee.
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* @param payee The address whose funds will be withdrawn and transferred to.
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*/
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function withdraw(address payee) public onlyPrimary {
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uint256 payment = _deposits[payee];
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_deposits[payee] = 0;
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payee.transfer(payment);
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emit Withdrawn(payee, payment);
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}
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}
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