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CrowdFund.sol
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CrowdFund.sol
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// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
import "./WWGToken.sol";
contract CrowdFund {
address public manager;
uint256 public amountRaised;
uint256 public tokenPrice;
WWGToken public token;
SafeMath public safeMath;
event Sold(address owner, uint256 totalTokens);
constructor(WWGToken _token, uint256 _tokenPrice) {
manager = msg.sender;
token = _token;
tokenPrice = _tokenPrice;
}
// Functions and addresses declared payable can receive token into the contract.
function buyToken(uint256 _tokensToBePurchased) public payable {
require(msg.value == safeMath.safeMul(_tokensToBePurchased, tokenPrice));
require(token.balanceOf(address(this)) >= _tokensToBePurchased);
require(token.transfer(msg.sender, _tokensToBePurchased));
amountRaised = safeMath.safeAdd(amountRaised, _tokensToBePurchased);
emit Sold(msg.sender, _tokensToBePurchased);
}
function endFunding() public {
require(msg.sender == manager);
//transfer to manager
token.transfer(payable(manager), token.balanceOf(address(this)));
}
}