oracles-presale/contracts/PresaleOracles.sol

79 lines
2.6 KiB
Solidity

// Build and Tested by Roman Storm rstormsf@gmail.com
import "zeppelin-solidity/contracts/math/SafeMath.sol";
import "zeppelin-solidity/contracts/token/BasicToken.sol";
import "zeppelin-solidity/contracts/ownership/Ownable.sol";
pragma solidity ^0.4.17;
contract PresaleOracles is Ownable {
using SafeMath for uint256;
uint256 public startTime;
uint256 public endTime;
uint256 public cap;
uint256 public rate;
uint256 public totalInvestedInWei;
uint256 public investorsLength;
uint256 public minimumContribution;
mapping(address => uint256) public investorBalances;
address public vault;
bool public isInitialized = false;
// TESTED by Roman Storm
function () public payable {
buy();
}
//TESTED by Roman Storm
function Presale() public {
}
//TESTED by Roman Storm
function initialize(uint256 _startTime, uint256 _endTime, uint256 _cap, uint256 _minimumContribution, address _vault) public onlyOwner {
require(!isInitialized);
require(_startTime != 0);
require(_endTime != 0);
require(_endTime > _startTime);
require(_cap != 0);
require(_minimumContribution != 0);
require(_vault != 0x0);
startTime = _startTime;
endTime = _endTime;
cap = _cap;
isInitialized = true;
minimumContribution =_minimumContribution;
vault = _vault;
}
//TESTED by Roman Storm
function buy() public payable {
require(isValidPurchase());
require(isInitialized);
require(getTime() >= startTime && getTime() <= endTime);
address investor = msg.sender;
investorBalances[investor] += msg.value;
totalInvestedInWei += msg.value;
forwardFunds(msg.value);
}
//TESTED by Roman Storm
function forwardFunds(uint256 _amount) internal {
vault.transfer(_amount);
}
//TESTED by Roman Storm
function claimTokens(address _token) public onlyOwner {
if (_token == 0x0) {
owner.transfer(this.balance);
return;
}
BasicToken token = BasicToken(_token);
uint256 balance = token.balanceOf(this);
token.transfer(owner, balance);
}
function getTime() internal view returns(uint256) {
return now;
}
//TESTED by Roman Storm
function isValidPurchase() public view returns(bool) {
bool hasMinimumAmount = investorBalances[msg.sender].add(msg.value) >= minimumContribution;
bool withinCap = totalInvestedInWei.add(msg.value) <= cap;
return hasMinimumAmount && withinCap;
}
}