Contract

/**
 *Submitted for verification at Etherscan.io on 2022-02-11
*/

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.4;

// import "hardhat/console.sol";
interface IMOLOCH {
    // brief interface for moloch dao v2

    function depositToken() external view returns (address);

    function tokenWhitelist(address token) external view returns (bool);

    function shamans(address token) external view returns (bool);

    function totalShares() external view returns (uint256);

    function getProposalFlags(uint256 proposalId)
        external
        view
        returns (bool[6] memory);

    function getUserTokenBalance(address user, address token)
        external
        view
        returns (uint256);

    function members(address user)
        external
        view
        returns (
            address,
            uint256,
            uint256,
            bool,
            uint256,
            uint256
        );

    function memberAddressByDelegateKey(address user)
        external
        view
        returns (address);

    function userTokenBalances(address user, address token)
        external
        view
        returns (uint256);

    function cancelProposal(uint256 proposalId) external;

    function submitProposal(
        address applicant,
        uint256 sharesRequested,
        uint256 lootRequested,
        uint256 tributeOffered,
        address tributeToken,
        uint256 paymentRequested,
        address paymentToken,
        string calldata details
    ) external returns (uint256);

    function withdrawBalance(address token, uint256 amount) external;

    function collectTokens(address) external;

    struct Proposal {
        address applicant; // the applicant who wishes to become a member - this key will be used for withdrawals (doubles as guild kick target for gkick proposals)
        address proposer; // the account that submitted the proposal (can be non-member)
        address sponsor; // the member that sponsored the proposal (moving it into the queue)
        uint256 sharesRequested; // the # of shares the applicant is requesting
        uint256 lootRequested; // the amount of loot the applicant is requesting
        uint256 tributeOffered; // amount of tokens offered as tribute
        address tributeToken; // tribute token contract reference
        uint256 paymentRequested; // amount of tokens requested as payment
        address paymentToken; // payment token contract reference
        uint256 startingPeriod; // the period in which voting can start for this proposal
        uint256 yesVotes; // the total number of YES votes for this proposal
        uint256 noVotes; // the total number of NO votes for this proposal
        bool[6] flags; // [sponsored, processed, didPass, cancelled, whitelist, guildkick]
        string details; // proposal details - could be IPFS hash, plaintext, or JSON
        uint256 maxTotalSharesAndLootAtYesVote; // the maximum # of total shares encountered at a yes vote on this proposal
    }

    function proposals(uint256 proposalId)
        external
        view
        returns (
            address,
            address,
            address,
            uint256,
            uint256,
            uint256,
            address,
            uint256,
            address,
            uint256,
            uint256,
            uint256
        );

    function setSharesLoot(
        address[] calldata,
        uint256[] calldata,
        uint256[] calldata,
        bool mint
    ) external;

    function setSingleSharesLoot(
        address,
        uint256,
        uint256,
        bool
    ) external;

    function setShaman(address, bool) external;
}

interface IWRAPPER {
    function transfer(address recipient, uint256 amount)
        external
        returns (bool);
}

abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract Yeeter is ReentrancyGuard {
    event YeetReceived(
        address indexed contributorAddress,
        uint256 amount,
        address moloch,
        uint256 lootToGive,
        uint256 lootToPlatform
    );
    mapping(address => uint256) public deposits;
    uint256 public maxTarget;
    uint256 public raiseEndTime;
    uint256 public raiseStartTime;
    uint256 public maxUnitsPerAddr;
    uint256 public pricePerUnit;
    uint256 public lootPerUnit;
    bool public initialized;

    uint256 public platformFee;

    uint256 public balance;
    IMOLOCH public moloch;
    IWRAPPER public wrapper;

    YeetSummoner factory;

    function init(
        address _moloch,
        address payable _wrapper,
        uint256 _maxTarget, // max raise target
        uint256 _raiseEndTime,
        uint256 _raiseStartTime,
        uint256 _maxUnits, // per individual
        uint256 _pricePerUnit
    ) public {
        require(!initialized, "already initialized");
        initialized = true;
        moloch = IMOLOCH(_moloch);
        wrapper = IWRAPPER(_wrapper);
        maxTarget = _maxTarget;
        raiseEndTime = _raiseEndTime;
        raiseStartTime = _raiseStartTime;
        maxUnitsPerAddr = _maxUnits;
        pricePerUnit = _pricePerUnit;

        factory = YeetSummoner(msg.sender);
    }

    function initTemplate() public {
        initialized = true;
    }

    function yeetyeet() public payable nonReentrant {
        require(address(moloch) != address(0), "!init");
        require(msg.value >= pricePerUnit, "< minimum");
        require(balance < maxTarget, "Max Target reached"); // balance plus newvalue
        require(block.timestamp < raiseEndTime, "Time is up");
        require(block.timestamp > raiseStartTime, "Not Started");
        require(moloch.shamans(address(this)), "Shaman not whitelisted");
        require(
            moloch.tokenWhitelist(address(wrapper)),
            "Wrapper not whitelisted"
        );
        uint256 numUnits = msg.value / pricePerUnit; // floor units
        uint256 newValue = numUnits * pricePerUnit;

        // if some one yeets over max should we give them the max and return leftover.
        require(
            deposits[msg.sender] + newValue <= maxUnitsPerAddr * pricePerUnit,
            "Can not deposit more than max"
        );

        // wrap
        (bool success, ) = address(wrapper).call{value: newValue}("");
        require(success, "Wrap failed");
        // send to dao
        require(wrapper.transfer(address(moloch), newValue), "Transfer failed");

        if (msg.value > newValue) {
            // Return the extra money to the minter.
            (bool success2, ) = msg.sender.call{value: msg.value - newValue}(
                ""
            );
            require(success2, "Transfer failed");
        }
        // TODO: check
        deposits[msg.sender] = deposits[msg.sender] + newValue;

        balance = balance + newValue;

        uint256 lootToGive = (numUnits * factory.lootPerUnit());
        uint256 lootToPlatform = (numUnits * factory.platformFee());

        moloch.setSingleSharesLoot(msg.sender, 0, lootToGive, true);
        if (lootToPlatform > 0) {
            moloch.setSingleSharesLoot(
                factory.owner(),
                0,
                lootToPlatform,
                true
            );
        }

        moloch.collectTokens(address(wrapper));

        // amount of loot? fees?
        emit YeetReceived(
            msg.sender,
            newValue,
            address(moloch),
            lootToGive,
            lootToPlatform
        );
    }

    receive() external payable {
        yeetyeet();
    }

    function goalReached() public view returns (bool) {
        return balance >= maxTarget;
    }
}

contract CloneFactory {
    // implementation of eip-1167 - see https://eips.ethereum.org/EIPS/eip-1167
    function createClone(address target) internal returns (address result) {
        bytes20 targetBytes = bytes20(target);
        assembly {
            let clone := mload(0x40)
            mstore(
                clone,
                0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
            )
            mstore(add(clone, 0x14), targetBytes)
            mstore(
                add(clone, 0x28),
                0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
            )
            result := create(0, clone, 0x37)
        }
    }
}

contract YeetSummoner is CloneFactory, Ownable {
    address payable public template;
    mapping(uint256 => address) public yeeters;
    uint256 public yeetIdx = 0;

    uint256 public platformFee = 3; // fee of 3.09%
    uint256 public lootPerUnit = 100;

    event PlatformFeeUpdate(uint256 platformFee, uint256 lootPerUnit);

    event SummonYeetComplete(
        address indexed moloch,
        address yeeter,
        address wrapper,
        uint256 maxTarget,
        uint256 raiseEndTime,
        uint256 raiseStartTime,
        uint256 maxUnits,
        uint256 pricePerUnit,
        string details
    );

    constructor(address payable _template) {
        template = _template;
        Yeeter _yeeter = Yeeter(_template);
        _yeeter.initTemplate();
    }

    function summonYeet(
        address _moloch,
        address payable _wrapper,
        uint256 _maxTarget,
        uint256 _raiseEndTime,
        uint256 _raiseStartTime,
        uint256 _maxUnits,
        uint256 _pricePerUnit,
        string calldata _details
    ) public returns (address) {
        Yeeter yeeter = Yeeter(payable(createClone(template)));

        yeeter.init(
            _moloch,
            _wrapper,
            _maxTarget,
            _raiseEndTime,
            _raiseStartTime,
            _maxUnits,
            _pricePerUnit
        );
        yeetIdx = yeetIdx + 1;
        yeeters[yeetIdx] = address(yeeter);

        emit SummonYeetComplete(
            _moloch,
            address(yeeter),
            _wrapper,
            _maxTarget,
            _raiseEndTime,
            _raiseStartTime,
            _maxUnits,
            _pricePerUnit,
            _details
        );

        return address(yeeter);
    }

    // owner only functions
    function setConfig(uint256 _platformFee, uint256 _lootPerUnit)
        public
        onlyOwner
    {
        require(_lootPerUnit > 0, "Can not be 0");
        platformFee = _platformFee;
        lootPerUnit = _lootPerUnit;
        emit PlatformFeeUpdate(platformFee, lootPerUnit);
    }
}

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