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pragma solidity ^0.4.6;

contract WinnerTakesAll { uint minimumEntryFee; uint public deadlineProjects; uint public deadlineCampaign; uint public winningFunds; address public winningAddress; struct Project { address addr; string name; string url; uint funds; bool initialized; } mapping (address => Project) projects; address[] public projectAddresses; uint public numberOfProjects; event ProjectSubmitted(address addr, string name, string url, bool initialized); event ProjectSupported(address addr, uint amount); event PayedOutTo(address addr, uint winningFunds);

function WinnerTakesAll(uint _minimumEntryFee, uint _durationProjects, uint _durationCampaign) public {
    if (_durationCampaign <= _durationProjects) {
        revert();
    }
    minimumEntryFee = _minimumEntryFee;
    deadlineProjects = now + _durationProjects* 1 seconds;
    deadlineCampaign = now + _durationCampaign * 1 seconds;
    winningAddress = msg.sender;
    winningFunds = 0;
}
function submitProject(string name, string url) payable public returns (bool success) {
    if (msg.value < minimumEntryFee) {
        revert();
    }
    if (now > deadlineProjects) {
        revert();
    }
    if (!projects[msg.sender].initialized) {
        projects[msg.sender] = Project(msg.sender, name, url, 0, true);

        projectAddresses.push(msg.sender);
        numberOfProjects = projectAddresses.length;
        ProjectSubmitted(msg.sender, name, url, projects[msg.sender].initialized);
        return true;
    }
    return false;
}
function supportProject(address addr) payable public returns (bool success) {
    if (msg.value <= 0) {
        revert();
    }
    if (now > deadlineCampaign || now <= deadlineProjects) {
        revert();
    }
    if (!projects[addr].initialized) {
        revert();
    }
    projects[addr].funds += msg.value;
    if (projects[addr].funds > winningFunds) {
        winningAddress = addr;
        winningFunds = projects[addr].funds;
    }
    ProjectSupported(addr, msg.value);
    return true;
}
function getProjectInfo(address addr) public constant returns (string name, string url, uint funds) {
    var project = projects[addr];
    if (!project.initialized) {
        revert();
    }
    return (project.name, project.url, project.funds);
}
function finish() {
    if (now >= deadlineCampaign) {
        PayedOutTo(winningAddress, winningFunds);
        selfdestruct(winningAddress);
    }
}

}