// SPDX-License-Identifier: --🦉--

pragma solidity =0.7.2;

/*
 __      __.___  ____________________
/  \    /  \   |/   _____/\_   _____/
\   \/\/   /   |\_____  \  |    __)_
 \        /|   |/        \ |        \
  \__/\  / |___/_______  //_______  /
       \/              \/         \/

The Wise Foundation is an unincorporated nonprofit association formed in February 2020.
The WISE contract and various related software and websites are being wholly funded and
developed by The Wise Foundation. Visit https://wisetoken.net/ for more information.

*/

interface IWiseToken {

    function currentWiseDay()
        external view
        returns (uint64);

    function approve(
        address _spender,
        uint256 _value
    ) external returns (bool success);

    function mintSupply(
        address _investorAddress,
        uint256 _amount
    ) external;

    function giveStatus(
        address _referrer
    ) external;
}

interface UniswapRouterV2 {

    function addLiquidityETH(
        address token,
        uint256 amountTokenMax,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external payable returns (
        uint256 amountToken,
        uint256 amountETH,
        uint256 liquidity
    );

    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (
        uint256 amountB
    );

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (
        uint256[] memory amounts
    );
}

interface UniswapV2Pair {

    function getReserves() external view returns (
        uint112 reserve0,
        uint112 reserve1,
        uint32 blockTimestampLast
    );

    function token1() external view returns (address);
}

interface RefundSponsorI {
    function addGasRefund(address _a, uint256 _c) external;
}

interface IERC20Token {

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    )  external returns (
        bool success
    );

    function approve(
        address _spender,
        uint256 _value
    )  external returns (
        bool success
    );
}

interface ProvableI {

    function cbAddress() external returns (address _cbAddress);
    function setProofType(byte _proofType) external;
    function setCustomGasPrice(uint _gasPrice) external;
    function getPrice(string calldata _datasource) external returns (uint _dsprice);
    function randomDS_getSessionPubKeyHash() external view returns (bytes32 _sessionKeyHash);
    function getPrice(string calldata _datasource, uint _gasLimit)  external returns (uint _dsprice);
    function queryN(uint _timestamp, string calldata _datasource, bytes calldata _argN) external payable returns (bytes32 _id);
    function query(uint _timestamp, string calldata _datasource, string calldata _arg) external payable returns (bytes32 _id);
    function query2(uint _timestamp, string calldata _datasource, string calldata _arg1, string calldata _arg2) external payable returns (bytes32 _id);
    function query_withGasLimit(uint _timestamp, string calldata _datasource, string calldata _arg, uint _gasLimit) external payable returns (bytes32 _id);
    function queryN_withGasLimit(uint _timestamp, string calldata _datasource, bytes calldata _argN, uint _gasLimit) external payable returns (bytes32 _id);
    function query2_withGasLimit(uint _timestamp, string calldata _datasource, string calldata _arg1, string calldata _arg2, uint _gasLimit) external payable returns (bytes32 _id);
}

interface OracleAddrResolverI {
    function getAddress() external returns (address _address);
}

contract usingProvable {

    using CBOR for Buffer.buffer;

    ProvableI provable;
    OracleAddrResolverI OAR;

    uint constant day = 60 * 60 * 24;
    uint constant week = 60 * 60 * 24 * 7;
    uint constant month = 60 * 60 * 24 * 30;

    byte constant proofType_NONE = 0x00;
    byte constant proofType_Ledger = 0x30;
    byte constant proofType_Native = 0xF0;
    byte constant proofStorage_IPFS = 0x01;
    byte constant proofType_Android = 0x40;
    byte constant proofType_TLSNotary = 0x10;

    string provable_network_name;
    uint8 constant networkID_auto = 0;
    uint8 constant networkID_morden = 2;
    uint8 constant networkID_mainnet = 1;
    uint8 constant networkID_testnet = 2;
    uint8 constant networkID_consensys = 161;

    mapping(bytes32 => bytes32) provable_randomDS_args;
    mapping(bytes32 => bool) provable_randomDS_sessionKeysHashVerified;

    modifier provableAPI {
        if ((address(OAR) == address(0)) || (getCodeSize(address(OAR)) == 0)) {
            provable_setNetwork(networkID_auto);
        }
        if (address(provable) != OAR.getAddress()) {
            provable = ProvableI(OAR.getAddress());
        }
        _;
    }

    modifier provable_randomDS_proofVerify(bytes32 _queryId, string memory _result, bytes memory _proof) {
        // RandomDS Proof Step 1: The prefix has to match 'LP\x01' (Ledger Proof version 1)
        require((_proof[0] == "L") && (_proof[1] == "P") && (uint8(_proof[2]) == uint8(1)));
        bool proofVerified = provable_randomDS_proofVerify__main(_proof, _queryId, bytes(_result), provable_getNetworkName());
        require(proofVerified);
        _;
    }

    function provable_setNetwork(uint8 _networkID) internal returns (bool _networkSet) {
      _networkID; // NOTE: Silence the warning and remain backwards compatible
      return provable_setNetwork();
    }

    function provable_setNetworkName(string memory _network_name) internal {
        provable_network_name = _network_name;
    }

    function provable_getNetworkName() internal view returns (string memory _networkName) {
        return provable_network_name;
    }

    function provable_setNetwork() internal returns (bool _networkSet) {
        if (getCodeSize(0x1d3B2638a7cC9f2CB3D298A3DA7a90B67E5506ed) > 0) { //mainnet
            OAR = OracleAddrResolverI(0x1d3B2638a7cC9f2CB3D298A3DA7a90B67E5506ed);
            provable_setNetworkName("eth_mainnet");
            return true;
        }
        if (getCodeSize(0xc03A2615D5efaf5F49F60B7BB6583eaec212fdf1) > 0) { //ropsten testnet
            OAR = OracleAddrResolverI(0xc03A2615D5efaf5F49F60B7BB6583eaec212fdf1);
            provable_setNetworkName("eth_ropsten3");
            return true;
        }
        if (getCodeSize(0xB7A07BcF2Ba2f2703b24C0691b5278999C59AC7e) > 0) { //kovan testnet
            OAR = OracleAddrResolverI(0xB7A07BcF2Ba2f2703b24C0691b5278999C59AC7e);
            provable_setNetworkName("eth_kovan");
            return true;
        }
        if (getCodeSize(0x146500cfd35B22E4A392Fe0aDc06De1a1368Ed48) > 0) { //rinkeby testnet
            OAR = OracleAddrResolverI(0x146500cfd35B22E4A392Fe0aDc06De1a1368Ed48);
            provable_setNetworkName("eth_rinkeby");
            return true;
        }
        if (getCodeSize(0xa2998EFD205FB9D4B4963aFb70778D6354ad3A41) > 0) { //goerli testnet
            OAR = OracleAddrResolverI(0xa2998EFD205FB9D4B4963aFb70778D6354ad3A41);
            provable_setNetworkName("eth_goerli");
            return true;
        }
        if (getCodeSize(0x6f485C8BF6fc43eA212E93BBF8ce046C7f1cb475) > 0) { //ethereum-bridge
            OAR = OracleAddrResolverI(0x6f485C8BF6fc43eA212E93BBF8ce046C7f1cb475);
            return true;
        }
        if (getCodeSize(0x20e12A1F859B3FeaE5Fb2A0A32C18F5a65555bBF) > 0) { //ether.camp ide
            OAR = OracleAddrResolverI(0x20e12A1F859B3FeaE5Fb2A0A32C18F5a65555bBF);
            return true;
        }
        if (getCodeSize(0x51efaF4c8B3C9AfBD5aB9F4bbC82784Ab6ef8fAA) > 0) { //browser-solidity
            OAR = OracleAddrResolverI(0x51efaF4c8B3C9AfBD5aB9F4bbC82784Ab6ef8fAA);
            return true;
        }
        return false;
    }
    /**
     * @dev The following `__callback` functions are just placeholders ideally
     *      meant to be defined in child contract when proofs are used.
     *      The function bodies simply silence compiler warnings.
     */
    function __callback(bytes32 _myid, string memory _result) virtual public {
        __callback(_myid, _result, new bytes(0));
    }

    function __callback(bytes32 _myid, string memory _result, bytes memory _proof) virtual public {
      _myid; _result; _proof;
      provable_randomDS_args[bytes32(0)] = bytes32(0);
    }

    function provable_getPrice(string memory _datasource) provableAPI internal returns (uint _queryPrice) {
        return provable.getPrice(_datasource);
    }

    function provable_getPrice(string memory _datasource, uint _gasLimit) provableAPI internal returns (uint _queryPrice) {
        return provable.getPrice(_datasource, _gasLimit);
    }

    function provable_query(string memory _datasource, string memory _arg) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        return provable.query{value: price}(0, _datasource, _arg);
    }

    function provable_query(uint _timestamp, string memory _datasource, string memory _arg) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        return provable.query{value: price}(_timestamp, _datasource, _arg);
    }

    function provable_query(uint _timestamp, string memory _datasource, string memory _arg, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource,_gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        return provable.query_withGasLimit{value: price}(_timestamp, _datasource, _arg, _gasLimit);
    }

    function provable_query(string memory _datasource, string memory _arg, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
           return 0; // Unexpectedly high price
        }
        return provable.query_withGasLimit{value: price}(0, _datasource, _arg, _gasLimit);
    }

    function provable_query(string memory _datasource, string memory _arg1, string memory _arg2) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        return provable.query2{value: price}(0, _datasource, _arg1, _arg2);
    }

    function provable_query(uint _timestamp, string memory _datasource, string memory _arg1, string memory _arg2) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        return provable.query2{value: price}(_timestamp, _datasource, _arg1, _arg2);
    }

    function provable_query(uint _timestamp, string memory _datasource, string memory _arg1, string memory _arg2, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        return provable.query2_withGasLimit{value: price}(_timestamp, _datasource, _arg1, _arg2, _gasLimit);
    }

    function provable_query(string memory _datasource, string memory _arg1, string memory _arg2, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        return provable.query2_withGasLimit{value: price}(0, _datasource, _arg1, _arg2, _gasLimit);
    }

    function provable_query(string memory _datasource, string[] memory _argN) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = stra2cbor(_argN);
        return provable.queryN{value: price}(0, _datasource, args);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[] memory _argN) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = stra2cbor(_argN);
        return provable.queryN{value: price}(_timestamp, _datasource, args);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[] memory _argN, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = stra2cbor(_argN);
        return provable.queryN_withGasLimit{value: price}(_timestamp, _datasource, args, _gasLimit);
    }

    function provable_query(string memory _datasource, string[] memory _argN, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = stra2cbor(_argN);
        return provable.queryN_withGasLimit{value: price}(0, _datasource, args, _gasLimit);
    }

    function provable_query(string memory _datasource, string[1] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](1);
        dynargs[0] = _args[0];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[1] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](1);
        dynargs[0] = _args[0];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[1] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](1);
        dynargs[0] = _args[0];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[1] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](1);
        dynargs[0] = _args[0];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[2] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[2] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[2] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[2] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[3] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[3] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[3] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[3] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[4] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[4] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[4] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[4] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[5] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[5] memory _args) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, string[5] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, string[5] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        string[] memory dynargs = new string[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[] memory _argN) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = ba2cbor(_argN);
        return provable.queryN{value: price}(0, _datasource, args);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[] memory _argN) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource);
        if (price > 1 ether + tx.gasprice * 200000) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = ba2cbor(_argN);
        return provable.queryN{value: price}(_timestamp, _datasource, args);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[] memory _argN, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = ba2cbor(_argN);
        return provable.queryN_withGasLimit{value: price}(_timestamp, _datasource, args, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[] memory _argN, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        uint price = provable.getPrice(_datasource, _gasLimit);
        if (price > 1 ether + tx.gasprice * _gasLimit) {
            return 0; // Unexpectedly high price
        }
        bytes memory args = ba2cbor(_argN);
        return provable.queryN_withGasLimit{value: price}(0, _datasource, args, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[1] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](1);
        dynargs[0] = _args[0];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[1] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](1);
        dynargs[0] = _args[0];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[1] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](1);
        dynargs[0] = _args[0];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[1] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](1);
        dynargs[0] = _args[0];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[2] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[2] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[2] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[2] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](2);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[3] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[3] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[3] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[3] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](3);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[4] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[4] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[4] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[4] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](4);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[5] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[5] memory _args) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_timestamp, _datasource, dynargs);
    }

    function provable_query(uint _timestamp, string memory _datasource, bytes[5] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_timestamp, _datasource, dynargs, _gasLimit);
    }

    function provable_query(string memory _datasource, bytes[5] memory _args, uint _gasLimit) provableAPI internal returns (bytes32 _id) {
        bytes[] memory dynargs = new bytes[](5);
        dynargs[0] = _args[0];
        dynargs[1] = _args[1];
        dynargs[2] = _args[2];
        dynargs[3] = _args[3];
        dynargs[4] = _args[4];
        return provable_query(_datasource, dynargs, _gasLimit);
    }

    function provable_setProof(byte _proofP) provableAPI internal {
        return provable.setProofType(_proofP);
    }


    function provable_cbAddress() provableAPI internal returns (address _callbackAddress) {
        return provable.cbAddress();
    }

    function getCodeSize(address _addr) view internal returns (uint _size) {
        assembly {
            _size := extcodesize(_addr)
        }
    }

    function provable_setCustomGasPrice(uint _gasPrice) provableAPI internal {
        return provable.setCustomGasPrice(_gasPrice);
    }

    function provable_randomDS_getSessionPubKeyHash() provableAPI internal returns (bytes32 _sessionKeyHash) {
        return provable.randomDS_getSessionPubKeyHash();
    }

    function parseAddr(string memory _a) internal pure returns (address _parsedAddress) {
        bytes memory tmp = bytes(_a);
        uint160 iaddr = 0;
        uint160 b1;
        uint160 b2;
        for (uint i = 2; i < 2 + 2 * 20; i += 2) {
            iaddr *= 256;
            b1 = uint160(uint8(tmp[i]));
            b2 = uint160(uint8(tmp[i + 1]));
            if ((b1 >= 97) && (b1 <= 102)) {
                b1 -= 87;
            } else if ((b1 >= 65) && (b1 <= 70)) {
                b1 -= 55;
            } else if ((b1 >= 48) && (b1 <= 57)) {
                b1 -= 48;
            }
            if ((b2 >= 97) && (b2 <= 102)) {
                b2 -= 87;
            } else if ((b2 >= 65) && (b2 <= 70)) {
                b2 -= 55;
            } else if ((b2 >= 48) && (b2 <= 57)) {
                b2 -= 48;
            }
            iaddr += (b1 * 16 + b2);
        }
        return address(iaddr);
    }

    function strCompare(string memory _a, string memory _b) internal pure returns (int _returnCode) {
        bytes memory a = bytes(_a);
        bytes memory b = bytes(_b);
        uint minLength = a.length;
        if (b.length < minLength) {
            minLength = b.length;
        }
        for (uint i = 0; i < minLength; i ++) {
            if (a[i] < b[i]) {
                return -1;
            } else if (a[i] > b[i]) {
                return 1;
            }
        }
        if (a.length < b.length) {
            return -1;
        } else if (a.length > b.length) {
            return 1;
        } else {
            return 0;
        }
    }

    function indexOf(string memory _haystack, string memory _needle) internal pure returns (int _returnCode) {
        bytes memory h = bytes(_haystack);
        bytes memory n = bytes(_needle);
        if (h.length < 1 || n.length < 1 || (n.length > h.length)) {
            return -1;
        } else if (h.length > (2 ** 128 - 1)) {
            return -1;
        } else {
            uint subindex = 0;
            for (uint i = 0; i < h.length; i++) {
                if (h[i] == n[0]) {
                    subindex = 1;
                    while(subindex < n.length && (i + subindex) < h.length && h[i + subindex] == n[subindex]) {
                        subindex++;
                    }
                    if (subindex == n.length) {
                        return int(i);
                    }
                }
            }
            return -1;
        }
    }

    function strConcat(string memory _a, string memory _b) internal pure returns (string memory _concatenatedString) {
        return strConcat(_a, _b, "", "", "");
    }

    function strConcat(string memory _a, string memory _b, string memory _c) internal pure returns (string memory _concatenatedString) {
        return strConcat(_a, _b, _c, "", "");
    }

    function strConcat(string memory _a, string memory _b, string memory _c, string memory _d) internal pure returns (string memory _concatenatedString) {
        return strConcat(_a, _b, _c, _d, "");
    }

    function strConcat(string memory _a, string memory _b, string memory _c, string memory _d, string memory _e) internal pure returns (string memory _concatenatedString) {
        bytes memory _ba = bytes(_a);
        bytes memory _bb = bytes(_b);
        bytes memory _bc = bytes(_c);
        bytes memory _bd = bytes(_d);
        bytes memory _be = bytes(_e);
        string memory abcde = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length);
        bytes memory babcde = bytes(abcde);
        uint k = 0;
        uint i = 0;
        for (i = 0; i < _ba.length; i++) {
            babcde[k++] = _ba[i];
        }
        for (i = 0; i < _bb.length; i++) {
            babcde[k++] = _bb[i];
        }
        for (i = 0; i < _bc.length; i++) {
            babcde[k++] = _bc[i];
        }
        for (i = 0; i < _bd.length; i++) {
            babcde[k++] = _bd[i];
        }
        for (i = 0; i < _be.length; i++) {
            babcde[k++] = _be[i];
        }
        return string(babcde);
    }

    function safeParseInt(string memory _a) internal pure returns (uint _parsedInt) {
        return safeParseInt(_a, 0);
    }

    function safeParseInt(string memory _a, uint _b) internal pure returns (uint _parsedInt) {
        bytes memory bresult = bytes(_a);
        uint mint = 0;
        bool decimals = false;
        for (uint i = 0; i < bresult.length; i++) {
            if ((uint(uint8(bresult[i])) >= 48) && (uint(uint8(bresult[i])) <= 57)) {
                if (decimals) {
                   if (_b == 0) break;
                    else _b--;
                }
                mint *= 10;
                mint += uint(uint8(bresult[i])) - 48;
            } else if (uint(uint8(bresult[i])) == 46) {
                require(!decimals, 'More than one decimal encountered in string!');
                decimals = true;
            } else {
                revert("Non-numeral character encountered in string!");
            }
        }
        if (_b > 0) {
            mint *= 10 ** _b;
        }
        return mint;
    }

    function parseInt(string memory _a) internal pure returns (uint _parsedInt) {
        return parseInt(_a, 0);
    }

    function parseInt(string memory _a, uint _b) internal pure returns (uint _parsedInt) {
        bytes memory bresult = bytes(_a);
        uint mint = 0;
        bool decimals = false;
        for (uint i = 0; i < bresult.length; i++) {
            if ((uint(uint8(bresult[i])) >= 48) && (uint(uint8(bresult[i])) <= 57)) {
                if (decimals) {
                   if (_b == 0) {
                       break;
                   } else {
                       _b--;
                   }
                }
                mint *= 10;
                mint += uint(uint8(bresult[i])) - 48;
            } else if (uint(uint8(bresult[i])) == 46) {
                decimals = true;
            }
        }
        if (_b > 0) {
            mint *= 10 ** _b;
        }
        return mint;
    }

    function uint2str(uint _i) internal pure returns (string memory _uintAsString) {
        if (_i == 0) {
            return "0";
        }
        uint j = _i;
        uint len;
        while (j != 0) {
            len++;
            j /= 10;
        }
        bytes memory bstr = new bytes(len);
        uint k = len - 1;
        while (_i != 0) {
            bstr[k--] = byte(uint8(48 + _i % 10));
            _i /= 10;
        }
        return string(bstr);
    }

    function stra2cbor(string[] memory _arr) internal pure returns (bytes memory _cborEncoding) {
        Buffer.buffer memory buf;
        Buffer.init(buf, 1024);
        buf.startArray();
        for (uint i = 0; i < _arr.length; i++) {
            buf.encodeString(_arr[i]);
        }
        buf.endSequence();
        return buf.buf;
    }

    function ba2cbor(bytes[] memory _arr) internal pure returns (bytes memory _cborEncoding) {
        Buffer.buffer memory buf;
        Buffer.init(buf, 1024);
        buf.startArray();
        for (uint i = 0; i < _arr.length; i++) {
            buf.encodeBytes(_arr[i]);
        }
        buf.endSequence();
        return buf.buf;
    }

    function provable_newRandomDSQuery(uint _delay, uint _nbytes, uint _customGasLimit) internal returns (bytes32 _queryId) {
        require((_nbytes > 0) && (_nbytes <= 32));
        _delay *= 10; // Convert from seconds to ledger timer ticks
        bytes memory nbytes = new bytes(1);
        nbytes[0] = byte(uint8(_nbytes));
        bytes memory unonce = new bytes(32);
        bytes memory sessionKeyHash = new bytes(32);
        bytes32 sessionKeyHash_bytes32 = provable_randomDS_getSessionPubKeyHash();
        assembly {
            mstore(unonce, 0x20)
            /*
             The following variables can be relaxed.
             Check the relaxed random contract at https://github.com/oraclize/ethereum-examples
             for an idea on how to override and replace commit hash variables.
            */
            mstore(add(unonce, 0x20), xor(blockhash(sub(number(), 1)), xor(coinbase(), timestamp())))
            mstore(sessionKeyHash, 0x20)
            mstore(add(sessionKeyHash, 0x20), sessionKeyHash_bytes32)
        }
        bytes memory delay = new bytes(32);
        assembly {
            mstore(add(delay, 0x20), _delay)
        }
        bytes memory delay_bytes8 = new bytes(8);
        copyBytes(delay, 24, 8, delay_bytes8, 0);
        bytes[4] memory args = [unonce, nbytes, sessionKeyHash, delay];
        bytes32 queryId = provable_query("random", args, _customGasLimit);
        bytes memory delay_bytes8_left = new bytes(8);
        assembly {
            let x := mload(add(delay_bytes8, 0x20))
            mstore8(add(delay_bytes8_left, 0x27), div(x, 0x100000000000000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x26), div(x, 0x1000000000000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x25), div(x, 0x10000000000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x24), div(x, 0x100000000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x23), div(x, 0x1000000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x22), div(x, 0x10000000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x21), div(x, 0x100000000000000000000000000000000000000000000000000))
            mstore8(add(delay_bytes8_left, 0x20), div(x, 0x1000000000000000000000000000000000000000000000000))
        }
        provable_randomDS_setCommitment(queryId, keccak256(abi.encodePacked(delay_bytes8_left, args[1], sha256(args[0]), args[2])));
        return queryId;
    }

    function provable_randomDS_setCommitment(bytes32 _queryId, bytes32 _commitment) internal {
        provable_randomDS_args[_queryId] = _commitment;
    }

    function verifySig(bytes32 _tosignh, bytes memory _dersig, bytes memory _pubkey) internal returns (bool _sigVerified) {
        bool sigok;
        address signer;
        bytes32 sigr;
        bytes32 sigs;
        bytes memory sigr_ = new bytes(32);
        uint offset = 4 + (uint(uint8(_dersig[3])) - 0x20);
        sigr_ = copyBytes(_dersig, offset, 32, sigr_, 0);
        bytes memory sigs_ = new bytes(32);
        offset += 32 + 2;
        sigs_ = copyBytes(_dersig, offset + (uint(uint8(_dersig[offset - 1])) - 0x20), 32, sigs_, 0);
        assembly {
            sigr := mload(add(sigr_, 32))
            sigs := mload(add(sigs_, 32))
        }
        (sigok, signer) = safer_ecrecover(_tosignh, 27, sigr, sigs);
        if (address(uint160(uint256(keccak256(_pubkey)))) == signer) {
            return true;
        } else {
            (sigok, signer) = safer_ecrecover(_tosignh, 28, sigr, sigs);
            return (address(uint160(uint256(keccak256(_pubkey)))) == signer);
        }
    }

    function provable_randomDS_proofVerify__sessionKeyValidity(bytes memory _proof, uint _sig2offset) internal returns (bool _proofVerified) {
        bool sigok;
        // Random DS Proof Step 6: Verify the attestation signature, APPKEY1 must sign the sessionKey from the correct ledger app (CODEHASH)
        bytes memory sig2 = new bytes(uint(uint8(_proof[_sig2offset + 1])) + 2);
        copyBytes(_proof, _sig2offset, sig2.length, sig2, 0);
        bytes memory appkey1_pubkey = new bytes(64);
        copyBytes(_proof, 3 + 1, 64, appkey1_pubkey, 0);
        bytes memory tosign2 = new bytes(1 + 65 + 32);
        tosign2[0] = byte(uint8(1)); //role
        copyBytes(_proof, _sig2offset - 65, 65, tosign2, 1);
        bytes memory CODEHASH = hex"fd94fa71bc0ba10d39d464d0d8f465efeef0a2764e3887fcc9df41ded20f505c";
        copyBytes(CODEHASH, 0, 32, tosign2, 1 + 65);
        sigok = verifySig(sha256(tosign2), sig2, appkey1_pubkey);
        if (!sigok) {
            return false;
        }
        // Random DS Proof Step 7: Verify the APPKEY1 provenance (must be signed by Ledger)
        bytes memory LEDGERKEY = hex"7fb956469c5c9b89840d55b43537e66a98dd4811ea0a27224272c2e5622911e8537a2f8e86a46baec82864e98dd01e9ccc2f8bc5dfc9cbe5a91a290498dd96e4";
        bytes memory tosign3 = new bytes(1 + 65);
        tosign3[0] = 0xFE;
        copyBytes(_proof, 3, 65, tosign3, 1);
        bytes memory sig3 = new bytes(uint(uint8(_proof[3 + 65 + 1])) + 2);
        copyBytes(_proof, 3 + 65, sig3.length, sig3, 0);
        sigok = verifySig(sha256(tosign3), sig3, LEDGERKEY);
        return sigok;
    }

    function provable_randomDS_proofVerify__returnCode(bytes32 _queryId, string memory _result, bytes memory _proof) internal returns (uint8 _returnCode) {
        // Random DS Proof Step 1: The prefix has to match 'LP\x01' (Ledger Proof version 1)
        if ((_proof[0] != "L") || (_proof[1] != "P") || (uint8(_proof[2]) != uint8(1))) {
            return 1;
        }
        bool proofVerified = provable_randomDS_proofVerify__main(_proof, _queryId, bytes(_result), provable_getNetworkName());
        if (!proofVerified) {
            return 2;
        }
        return 0;
    }

    function matchBytes32Prefix(bytes32 _content, bytes memory _prefix, uint _nRandomBytes) internal pure returns (bool _matchesPrefix) {
        bool match_ = true;
        require(_prefix.length == _nRandomBytes);
        for (uint256 i = 0; i< _nRandomBytes; i++) {
            if (_content[i] != _prefix[i]) {
                match_ = false;
            }
        }
        return match_;
    }

    function provable_randomDS_proofVerify__main(bytes memory _proof, bytes32 _queryId, bytes memory _result, string memory _contextName) internal returns (bool _proofVerified) {
        // Random DS Proof Step 2: The unique keyhash has to match with the sha256 of (context name + _queryId)
        uint ledgerProofLength = 3 + 65 + (uint(uint8(_proof[3 + 65 + 1])) + 2) + 32;
        bytes memory keyhash = new bytes(32);
        copyBytes(_proof, ledgerProofLength, 32, keyhash, 0);
        if (!(keccak256(keyhash) == keccak256(abi.encodePacked(sha256(abi.encodePacked(_contextName, _queryId)))))) {
            return false;
        }
        bytes memory sig1 = new bytes(uint(uint8(_proof[ledgerProofLength + (32 + 8 + 1 + 32) + 1])) + 2);
        copyBytes(_proof, ledgerProofLength + (32 + 8 + 1 + 32), sig1.length, sig1, 0);
        // Random DS Proof Step 3: We assume sig1 is valid (it will be verified during step 5) and we verify if '_result' is the _prefix of sha256(sig1)
        if (!matchBytes32Prefix(sha256(sig1), _result, uint(uint8(_proof[ledgerProofLength + 32 + 8])))) {
            return false;
        }
        // Random DS Proof Step 4: Commitment match verification, keccak256(delay, nbytes, unonce, sessionKeyHash) == commitment in storage.
        // This is to verify that the computed args match with the ones specified in the query.
        bytes memory commitmentSlice1 = new bytes(8 + 1 + 32);
        copyBytes(_proof, ledgerProofLength + 32, 8 + 1 + 32, commitmentSlice1, 0);
        bytes memory sessionPubkey = new bytes(64);
        uint sig2offset = ledgerProofLength + 32 + (8 + 1 + 32) + sig1.length + 65;
        copyBytes(_proof, sig2offset - 64, 64, sessionPubkey, 0);
        bytes32 sessionPubkeyHash = sha256(sessionPubkey);
        if (provable_randomDS_args[_queryId] == keccak256(abi.encodePacked(commitmentSlice1, sessionPubkeyHash))) { //unonce, nbytes and sessionKeyHash match
            delete provable_randomDS_args[_queryId];
        } else return false;
        // Random DS Proof Step 5: Validity verification for sig1 (keyhash and args signed with the sessionKey)
        bytes memory tosign1 = new bytes(32 + 8 + 1 + 32);
        copyBytes(_proof, ledgerProofLength, 32 + 8 + 1 + 32, tosign1, 0);
        if (!verifySig(sha256(tosign1), sig1, sessionPubkey)) {
            return false;
        }
        // Verify if sessionPubkeyHash was verified already, if not.. let's do it!
        if (!provable_randomDS_sessionKeysHashVerified[sessionPubkeyHash]) {
            provable_randomDS_sessionKeysHashVerified[sessionPubkeyHash] = provable_randomDS_proofVerify__sessionKeyValidity(_proof, sig2offset);
        }
        return provable_randomDS_sessionKeysHashVerified[sessionPubkeyHash];
    }
    /*
     The following function has been written by Alex Beregszaszi (@axic), use it under the terms of the MIT license
    */
    function copyBytes(bytes memory _from, uint _fromOffset, uint _length, bytes memory _to, uint _toOffset) internal pure returns (bytes memory _copiedBytes) {
        uint minLength = _length + _toOffset;
        require(_to.length >= minLength); // Buffer too small. Should be a better way?
        uint i = 32 + _fromOffset; // NOTE: the offset 32 is added to skip the `size` field of both bytes variables
        uint j = 32 + _toOffset;
        while (i < (32 + _fromOffset + _length)) {
            assembly {
                let tmp := mload(add(_from, i))
                mstore(add(_to, j), tmp)
            }
            i += 32;
            j += 32;
        }
        return _to;
    }
    /*
     The following function has been written by Alex Beregszaszi (@axic), use it under the terms of the MIT license
     Duplicate Solidity's ecrecover, but catching the CALL return value
    */
    function safer_ecrecover(bytes32 _hash, uint8 _v, bytes32 _r, bytes32 _s) internal returns (bool _success, address _recoveredAddress) {
        /*
         We do our own memory management here. Solidity uses memory offset
         0x40 to store the current end of memory. We write past it (as
         writes are memory extensions), but don't update the offset so
         Solidity will reuse it. The memory used here is only needed for
         this context.
         FIXME: inline assembly can't access return values
        */
        bool ret;
        address addr;
        assembly {
            let size := mload(0x40)
            mstore(size, _hash)
            mstore(add(size, 32), _v)
            mstore(add(size, 64), _r)
            mstore(add(size, 96), _s)
            ret := call(3000, 1, 0, size, 128, size, 32) // NOTE: we can reuse the request memory because we deal with the return code.
            addr := mload(size)
        }
        return (ret, addr);
    }
    /*
     The following function has been written by Alex Beregszaszi (@axic), use it under the terms of the MIT license
    */
    function ecrecovery(bytes32 _hash, bytes memory _sig) internal returns (bool _success, address _recoveredAddress) {
        bytes32 r;
        bytes32 s;
        uint8 v;
        if (_sig.length != 65) {
            return (false, address(0));
        }
        /*
         The signature format is a compact form of:
           {bytes32 r}{bytes32 s}{uint8 v}
         Compact means, uint8 is not padded to 32 bytes.
        */
        assembly {
            r := mload(add(_sig, 32))
            s := mload(add(_sig, 64))
            /*
             Here we are loading the last 32 bytes. We exploit the fact that
             'mload' will pad with zeroes if we overread.
             There is no 'mload8' to do this, but that would be nicer.
            */
            v := byte(0, mload(add(_sig, 96)))
            /*
              Alternative solution:
              'byte' is not working due to the Solidity parser, so lets
              use the second best option, 'and'
              v := and(mload(add(_sig, 65)), 255)
            */
        }
        /*
         albeit non-transactional signatures are not specified by the YP, one would expect it
         to match the YP range of [27, 28]
         geth uses [0, 1] and some clients have followed. This might change, see:
         https://github.com/ethereum/go-ethereum/issues/2053
        */
        if (v < 27) {
            v += 27;
        }
        if (v != 27 && v != 28) {
            return (false, address(0));
        }
        return safer_ecrecover(_hash, v, r, s);
    }
}

contract LiquidityTransformer is usingProvable {

    using SafeMathLT for uint256;
    using SafeMathLT for uint128;

    IWiseToken public WISE_CONTRACT;
    UniswapV2Pair public UNISWAP_PAIR;

    UniswapRouterV2 public constant UNISWAP_ROUTER = UniswapRouterV2(
        0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
    );

    RefundSponsorI public constant REFUND_SPONSOR = RefundSponsorI(
        0xc3FC68dDdB1bf4Cb61307eEf89729DC317f2325a
    );

    address payable constant TEAM_ADDRESS = 0x88eCFE0a6428A104a8bde2f31aE771Ae4d37F6b4;
    address public TOKEN_DEFINER = 0xa803c226c8281550454523191375695928DcFE92;
    address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;

    uint8 constant INVESTMENT_DAYS = 50;

    uint128 constant THRESHOLD_LIMIT_MIN = 1 ether;
    uint128 constant THRESHOLD_LIMIT_MAX = 50 ether;
    uint128 constant TEAM_ETHER_MAX = 2000 ether;
    uint128 constant MIN_INVEST = 50000000 gwei;
    uint128 constant DAILY_MAX_SUPPLY = 10000000;

    uint256 constant YODAS_PER_WISE = 10 ** uint256(18);
    uint256 constant NUM_RANDOM_BYTES_REQUESTED = 7;

    struct Globals {
        uint64 generatedDays;
        uint64 generationDayBuffer;
        uint64 generationTimeout;
        uint64 preparedReferrals;
        uint256 totalTransferTokens;
        uint256 totalWeiContributed;
        uint256 totalReferralTokens;
    }

    Globals public g;

    mapping(uint256 => uint256) dailyMinSupply;
    mapping(uint256 => uint256) public dailyTotalSupply;
    mapping(uint256 => uint256) public dailyTotalInvestment;

    mapping(uint256 => uint256) public investorAccountCount;
    mapping(uint256 => mapping(uint256 => address)) public investorAccounts;
    mapping(address => mapping(uint256 => uint256)) public investorBalances;

    mapping(address => uint256) public referralAmount;
    mapping(address => uint256) public referralTokens;
    mapping(address => uint256) public investorTotalBalance;
    mapping(address => uint256) originalInvestment;

    uint256 public referralAccountCount;
    uint256 public uniqueInvestorCount;

    mapping (uint256 => address) public uniqueInvestors;
    mapping (uint256 => address) public referralAccounts;

    event GeneratingRandomSupply(
        uint256 indexed investmentDay
    );

    event GeneratedRandomSupply(
        uint256 indexed investmentDay,
        uint256 randomSupply
    );

    event GeneratedStaticSupply(
        uint256 indexed investmentDay,
        uint256 staticSupply
    );

    event GenerationStatus(
        uint64 indexed investmentDay,
        bool result
    );

    event LogNewProvableQuery(
        string description
    );

    event ReferralAdded(
        address indexed referral,
        address indexed referee,
        uint256 amount
    );

    event UniSwapResult(
        uint256 amountToken,
        uint256 amountETH,
        uint256 liquidity
    );

    event WiseReservation(
        address indexed sender,
        uint256 indexed investmentDay,
        uint256 amount
    );

    modifier afterInvestmentPhase() {
        require(
            _currentWiseDay() > INVESTMENT_DAYS,
            'WISE: ongoing investment phase'
        );
        _;
    }

    modifier afterUniswapTransfer() {
        require (
            g.generatedDays > 0 &&
            g.totalWeiContributed == 0,
            'WISE: forward liquidity first'
        );
        _;
    }

    modifier investmentDaysRange(uint256 _investmentDay) {
        require(
            _investmentDay > 0 &&
            _investmentDay <= INVESTMENT_DAYS,
            'WISE: not in initial investment days range'
        );
        _;
    }

    modifier investmentEntryAmount(uint256 _days) {
        require(
            msg.value >= MIN_INVEST * _days,
            'WISE: investment below minimum'
        );
        _;
    }

    modifier onlyFundedDays(uint256 _investmentDay) {
        require(
            dailyTotalInvestment[_investmentDay] > 0,
            'WISE: no investments on that day'
        );
        _;
    }

    modifier refundSponsorDynamic() {
        uint256 gasStart = gasleft();
        _;
        uint256 gasSpent = (21000 + gasStart - gasleft()).mul(tx.gasprice);
        gasSpent = msg.value.div(10) > gasSpent ? gasSpent : msg.value.div(10);
        REFUND_SPONSOR.addGasRefund(msg.sender, gasSpent);
    }

    modifier refundSponsorFixed() {
        uint256 gasStart = gasleft();
        _;
        uint256 gasSpent = (21000 + gasStart - gasleft()).mul(tx.gasprice);
        gasSpent = gasSpent > 5000000000000000 ? 5000000000000000 : gasSpent;
        REFUND_SPONSOR.addGasRefund(msg.sender, gasSpent);
    }

    modifier onlyTokenDefiner() {
        require(
            msg.sender == TOKEN_DEFINER,
            'WISE: wrong sender'
        );
        _;
    }

    receive() external payable {
        require (
            msg.sender == address(UNISWAP_ROUTER) ||
            msg.sender == TEAM_ADDRESS ||
            msg.sender == TOKEN_DEFINER,
            'WISE: direct deposits disabled'
        );
    }

    function defineToken(
        address _wiseToken,
        address _uniswapPair
    )
        external
        onlyTokenDefiner
    {
        WISE_CONTRACT = IWiseToken(_wiseToken);
        UNISWAP_PAIR = UniswapV2Pair(_uniswapPair);
    }

    function revokeAccess()
        external
        onlyTokenDefiner
    {
        TOKEN_DEFINER = address(0x0);
    }

    constructor(address _wiseToken, address _uniswapPair) {

        WISE_CONTRACT = IWiseToken(_wiseToken);
        UNISWAP_PAIR = UniswapV2Pair(_uniswapPair);

        provable_setProof(proofType_Ledger);
        provable_setCustomGasPrice(100000000000);

        dailyMinSupply[1] = 5000000;
        dailyMinSupply[2] = 5000000;
        dailyMinSupply[3] = 5000000;
        dailyMinSupply[4] = 5000000;
        dailyMinSupply[5] = 5000000;
        dailyMinSupply[6] = 5000000;
        dailyMinSupply[7] = 5000000;

        dailyMinSupply[8] = 4500000;
        dailyMinSupply[9] = 5000000;

        dailyMinSupply[10] = 4500000;
        dailyMinSupply[11] = 5000000;
        dailyMinSupply[12] = 1;
        dailyMinSupply[13] = 5000000;
        dailyMinSupply[14] = 4000000;
        dailyMinSupply[15] = 5000000;
        dailyMinSupply[16] = 4000000;
        dailyMinSupply[17] = 4000000;
        dailyMinSupply[18] = 5000000;
        dailyMinSupply[19] = 1;

        dailyMinSupply[20] = 5000000;
        dailyMinSupply[21] = 3500000;
        dailyMinSupply[22] = 5000000;
        dailyMinSupply[23] = 3500000;
        dailyMinSupply[24] = 5000000;
        dailyMinSupply[25] = 3500000;
        dailyMinSupply[26] = 1;
        dailyMinSupply[27] = 5000000;
        dailyMinSupply[28] = 5000000;
        dailyMinSupply[29] = 3000000;

        dailyMinSupply[30] = 5000000;
        dailyMinSupply[31] = 3000000;
        dailyMinSupply[32] = 5000000;
        dailyMinSupply[33] = 1;
        dailyMinSupply[34] = 5000000;
        dailyMinSupply[35] = 2500000;
        dailyMinSupply[36] = 2500000;
        dailyMinSupply[37] = 5000000;
        dailyMinSupply[38] = 2500000;
        dailyMinSupply[39] = 5000000;

        dailyMinSupply[40] = 1;
        dailyMinSupply[41] = 5000000;
        dailyMinSupply[42] = 1;
        dailyMinSupply[43] = 5000000;
        dailyMinSupply[44] = 1;
        dailyMinSupply[45] = 5000000;
        dailyMinSupply[46] = 1;
        dailyMinSupply[47] = 1;
        dailyMinSupply[48] = 1;
        dailyMinSupply[49] = 5000000;
        dailyMinSupply[50] = 5000000;
    }


    //  WISE RESERVATION (EXTERNAL FUNCTIONS)  //
    //  -------------------------------------  //

    /** @dev Performs reservation of WISE tokens with ETH
      * @param _investmentDays array of reservation days.
      * @param _referralAddress referral address for bonus.
      */
    function reserveWise(
        uint8[] calldata _investmentDays,
        address _referralAddress
    )
        external
        payable
        refundSponsorDynamic
        investmentEntryAmount(_investmentDays.length)
    {
        checkInvestmentDays(
            _investmentDays,
            _currentWiseDay()
        );

        _reserveWise(
            _investmentDays,
            _referralAddress,
            msg.sender,
            msg.value
        );
    }

    /** @notice Allows reservation of WISE tokens with other ERC20 tokens
      * @dev this will require LT contract to be approved as spender
      * @param _tokenAddress address of an ERC20 token to use
      * @param _tokenAmount amount of tokens to use for reservation
      * @param _investmentDays array of reservation days
      * @param _referralAddress referral address for bonus
      */
    function reserveWiseWithToken(
        address _tokenAddress,
        uint256 _tokenAmount,
        uint8[] calldata _investmentDays,
        address _referralAddress
    )
        external
        refundSponsorFixed
    {
        IERC20Token _token = IERC20Token(
            _tokenAddress
        );

        _token.transferFrom(
            msg.sender,
            address(this),
            _tokenAmount
        );

        _token.approve(
            address(UNISWAP_ROUTER),
            _tokenAmount
        );

        address[] memory _path = preparePath(
            _tokenAddress
        );

        uint256[] memory amounts =
        UNISWAP_ROUTER.swapExactTokensForETH(
            _tokenAmount,
            0,
            _path,
            address(this),
            block.timestamp.add(2 hours)
        );

        require(
            amounts[1] >= MIN_INVEST * _investmentDays.length,
            'WISE: investment below minimum'
        );

        checkInvestmentDays(
            _investmentDays,
            _currentWiseDay()
        );

        _reserveWise(
            _investmentDays,
            _referralAddress,
            msg.sender,
            amounts[1]
        );
    }

    //  WISE RESERVATION (INTERNAL FUNCTIONS)  //
    //  -------------------------------------  //

    /** @notice Distributes ETH equaly between selected reservation days
      * @dev this will require LT contract to be approved as a spender
      * @param _investmentDays array of selected reservation days
      * @param _referralAddress referral address for bonus
      * @param _senderAddress address of the investor
      * @param _senderValue amount of ETH contributed
      */
    function _reserveWise(
        uint8[] memory _investmentDays,
        address _referralAddress,
        address _senderAddress,
        uint256 _senderValue
    )
        internal
    {
        require(
            _senderAddress != _referralAddress,
            'WISE: must be a different address'
        );

        require(
            notContract(_referralAddress),
            'WISE: invalid referral address'
        );

        uint256 _investmentBalance = _referralAddress == address(0x0)
            ? _senderValue // no referral bonus
            : _senderValue.mul(1100).div(1000);

        uint256 _totalDays = _investmentDays.length;
        uint256 _dailyAmount = _investmentBalance.div(_totalDays);
        uint256 _leftOver = _investmentBalance.mod(_totalDays);

        _addBalance(
            _senderAddress,
            _investmentDays[0],
            _dailyAmount.add(_leftOver)
        );

        for (uint8 _i = 1; _i < _totalDays; _i++) {
            _addBalance(
                _senderAddress,
                _investmentDays[_i],
                _dailyAmount
            );
        }

        _trackInvestors(
            _senderAddress,
            _investmentBalance
        );

        if (_referralAddress != address(0x0)) {

            _trackReferrals(_referralAddress, _senderValue);

            emit ReferralAdded(
                _referralAddress,
                _senderAddress,
                _senderValue
            );
        }

        originalInvestment[_senderAddress] += _senderValue;
        g.totalWeiContributed += _senderValue;
    }

    /** @notice Allocates investors balance to specific day
      * @param _senderAddress investors wallet address
      * @param _investmentDay selected investment day
      * @param _investmentBalance amount invested (with bonus)
      */
    function _addBalance(
        address _senderAddress,
        uint256 _investmentDay,
        uint256 _investmentBalance
    )
        internal
    {
        if (investorBalances[_senderAddress][_investmentDay] == 0) {
            investorAccounts[_investmentDay][investorAccountCount[_investmentDay]] = _senderAddress;
            investorAccountCount[_investmentDay]++;
        }

        investorBalances[_senderAddress][_investmentDay] += _investmentBalance;
        dailyTotalInvestment[_investmentDay] += _investmentBalance;

        emit WiseReservation(
            _senderAddress,
            _investmentDay,
            _investmentBalance
        );
    }

    //  WISE RESERVATION (PRIVATE FUNCTIONS)  //
    //  ------------------------------------  //

    /** @notice Tracks investorTotalBalance and uniqueInvestors
      * @dev used in _reserveWise() internal function
      * @param _investorAddress address of the investor
      * @param _value ETH amount invested (with bonus)
      */
    function _trackInvestors(address _investorAddress, uint256 _value) private {
        // if (investorTotalBalance[_investorAddress] == 0) uniqueInvestors.push(_investorAddress);
        if (investorTotalBalance[_investorAddress] == 0) {
            uniqueInvestors[
            uniqueInvestorCount] = _investorAddress;
            uniqueInvestorCount++;
        }
        investorTotalBalance[_investorAddress] += _value;
    }

    /** @notice Tracks referralAmount and referralAccounts
      * @dev used in _reserveWise() internal function
      * @param _referralAddress address of the referrer
      * @param _value ETH amount referred during reservation
      */
    function _trackReferrals(address _referralAddress, uint256 _value) private {
        if (referralAmount[_referralAddress] == 0) {
            referralAccounts[
            referralAccountCount] = _referralAddress;
            referralAccountCount++;
        }
        referralAmount[_referralAddress] += _value;
    }


    //  SUPPLY GENERATION (EXTERNAL FUNCTION)  //
    //  -------------------------------------  //

    /** @notice Allows to generate supply for past funded days
      * @param _investmentDay investemnt day index (1-50)
      */
    function generateSupply(
        uint64 _investmentDay
    )
        external
        investmentDaysRange(_investmentDay)
        onlyFundedDays(_investmentDay)
    {
        require(
            _investmentDay < _currentWiseDay(),
            'WISE: investment day must be in past'
        );

        require(
            g.generationDayBuffer == 0,
            'WISE: supply generation in progress'
        );

        require(
            dailyTotalSupply[_investmentDay] == 0,
            'WISE: supply already generated'
        );

        g.generationDayBuffer = _investmentDay;
        g.generationTimeout = uint64(block.timestamp.add(2 hours));

        DAILY_MAX_SUPPLY - dailyMinSupply[_investmentDay] == dailyMinSupply[_investmentDay]
            ? _generateStaticSupply(_investmentDay)
            : _generateRandomSupply(_investmentDay);
    }


    //  SUPPLY GENERATION (INTERNAL FUNCTIONS)  //
    //  --------------------------------------  //

    /** @notice Generates supply for days with static supply
      * @param _investmentDay investemnt day index (1-50)
      */
    function _generateStaticSupply(
        uint256 _investmentDay
    )
        internal
    {
        dailyTotalSupply[_investmentDay] = dailyMinSupply[_investmentDay] * YODAS_PER_WISE;
        g.totalTransferTokens += dailyTotalSupply[_investmentDay];

        g.generatedDays++;
        g.generationDayBuffer = 0;
        g.generationTimeout = 0;

        emit GeneratedStaticSupply(
            _investmentDay,
            dailyTotalSupply[_investmentDay]
        );
    }

    /** @notice Generates supply for days with random supply
      * @dev uses provable api to request provable_newRandomDSQuery
      * @param _investmentDay investemnt day index (1-50)
      */
    function _generateRandomSupply(
        uint256 _investmentDay
    )
        internal
    {
        uint256 QUERY_EXECUTION_DELAY = 0;
        uint256 GAS_FOR_CALLBACK = 200000;
        provable_newRandomDSQuery(
            QUERY_EXECUTION_DELAY,
            NUM_RANDOM_BYTES_REQUESTED,
            GAS_FOR_CALLBACK
        );

        emit GeneratingRandomSupply(_investmentDay);
        emit LogNewProvableQuery("Provable query was sent, standing by for the answer...");
    }

    //  SUPPLY GENERATION (ORACLE FUNCTIONS)  //
    //  ------------------------------------  //

    /** @notice Function that generates random supply
      * @dev expected to be called by oracle within 2 hours
      * time-frame, otherwise __timeout() can be performed
      */
    function __callback(
        bytes32 _queryId,
        string memory _result,
        bytes memory _proof
    )
        public
        override
    {
        require(
            msg.sender == provable_cbAddress(),
            'WISE: can only be called by Oracle'
        );

        require(
            g.generationDayBuffer > 0 &&
            g.generationDayBuffer <= INVESTMENT_DAYS,
            'WISE: incorrect generation day'
        );

        if (
            provable_randomDS_proofVerify__returnCode(
                _queryId,
                _result,
                _proof
            ) != 0
        ) {

            g.generationDayBuffer = 0;
            g.generationTimeout = 0;

            emit GenerationStatus(
                g.generationDayBuffer, false
            );

        } else {

            g.generatedDays = g.generatedDays + 1;
            uint256 _investmentDay = g.generationDayBuffer;

            uint256 currentDayMaxSupply = DAILY_MAX_SUPPLY.sub(dailyMinSupply[_investmentDay]);
            uint256 ceilingDayMaxSupply = currentDayMaxSupply.sub(dailyMinSupply[_investmentDay]);

            uint256 randomSupply = uint256(
                keccak256(
                    abi.encodePacked(_result)
                )
            ) % ceilingDayMaxSupply;

            require(
                dailyTotalSupply[_investmentDay] == 0,
                'WISE: supply already generated!'
            );

            dailyTotalSupply[_investmentDay] = dailyMinSupply[_investmentDay]
                .add(randomSupply)
                .mul(YODAS_PER_WISE);

            g.totalTransferTokens = g.totalTransferTokens
                .add(dailyTotalSupply[_investmentDay]);

            emit GeneratedRandomSupply(
                _investmentDay,
                dailyTotalSupply[_investmentDay]
            );

            emit GenerationStatus(
                g.generationDayBuffer, true
            );

            g.generationDayBuffer = 0;
            g.generationTimeout = 0;

        }
    }

    /** @notice Allows to reset expected oracle callback
      * @dev resets generationDayBuffer to retry callback
      * assigns static supply if no callback within a day
      */
    function __timeout()
        external
    {
        require(
            g.generationTimeout > 0 &&
            g.generationTimeout < block.timestamp,
            'WISE: still awaiting!'
        );

        uint64 _investmentDay = g.generationDayBuffer;

        require(
            _investmentDay > 0 &&
            _investmentDay <= INVESTMENT_DAYS,
            'WISE: incorrect generation day'
        );

        require(
            dailyTotalSupply[_investmentDay] == 0,
            'WISE: supply already generated!'
        );

        if (_currentWiseDay() - _investmentDay > 1) {

            dailyTotalSupply[_investmentDay] = dailyMinSupply[1]
                .mul(YODAS_PER_WISE);

            g.totalTransferTokens = g.totalTransferTokens
                .add(dailyTotalSupply[_investmentDay]);

            g.generatedDays = g.generatedDays + 1;

            emit GeneratedStaticSupply(
                _investmentDay,
                dailyTotalSupply[_investmentDay]
            );

            emit GenerationStatus(
                _investmentDay, true
            );

        } else {
            emit GenerationStatus(
                _investmentDay, false
            );
        }
        g.generationDayBuffer = 0;
        g.generationTimeout = 0;
    }


    //  PRE-LIQUIDITY GENERATION FUNCTION  //
    //  ---------------------------------  //

    /** @notice Pre-calculates amount of tokens each referrer will get
      * @dev must run this for all referrer addresses in batches
      * converts _referralAmount to _referralTokens based on dailyRatio
      */
    function prepareReferralBonuses(
        uint256 _referralBatchFrom,
        uint256 _referralBatchTo
    )
        external
        afterInvestmentPhase
    {
        require(
            _referralBatchFrom < _referralBatchTo,
            'WISE: incorrect referral batch'
        );

        require (
            g.preparedReferrals < referralAccountCount,
            'WISE: all referrals already prepared'
        );

        uint256 _totalRatio = g.totalTransferTokens.div(g.totalWeiContributed);

        for (uint256 i = _referralBatchFrom; i < _referralBatchTo; i++) {
            address _referralAddress = referralAccounts[i];
            uint256 _referralAmount = referralAmount[_referralAddress];
            if (referralAmount[_referralAddress] > 0) {
                referralAmount[_referralAddress] = 0;
                if (_referralAmount >= THRESHOLD_LIMIT_MIN) {
                    _referralAmount >= THRESHOLD_LIMIT_MAX
                        ? _fullReferralBonus(_referralAddress, _referralAmount, _totalRatio)
                        : _familyReferralBonus(_referralAddress, _totalRatio);

                    g.totalReferralTokens = g.totalReferralTokens.add(
                        referralTokens[_referralAddress]
                    );
                }
                g.preparedReferrals++;
            }
        }
    }

    /** @notice performs token allocation for 10% of referral amount
      * @dev after liquidity is formed referrer can withdraw this amount
      * additionally this will give CM status to the referrer address
      */
    function _fullReferralBonus(address _referralAddress, uint256 _referralAmount, uint256 _ratio) internal {
        referralTokens[_referralAddress] = _referralAmount.div(10).mul(_ratio);
        WISE_CONTRACT.giveStatus(_referralAddress);
    }

    /** @notice performs token allocation for family bonus referrals
      * @dev after liquidity is formed referrer can withdraw this amount
      */
    function _familyReferralBonus(address _referralAddress, uint256 _ratio) internal {
        referralTokens[_referralAddress] = MIN_INVEST.mul(_ratio);
    }


    //  LIQUIDITY GENERATION FUNCTION  //
    //  -----------------------------  //

    /** @notice Creates initial liquidity on Uniswap by forwarding
      * reserved tokens equivalent to ETH contributed to the contract
      * @dev check addLiquidityETH documentation
      */
    function forwardLiquidity(/*🦄*/)
        external
        afterInvestmentPhase
    {
        require(
            g.generatedDays == fundedDays(),
            'WISE: must generate supply for all days'
        );

        require (
            g.preparedReferrals == referralAccountCount,
            'WISE: must prepare all referrals'
        );

        require (
            g.totalTransferTokens > 0,
            'WISE: must have tokens to transfer'
        );

        uint256 _balance = g.totalWeiContributed;
        uint256 _buffer = g.totalTransferTokens + g.totalReferralTokens;

        _balance = _balance.sub(
            _teamContribution(
                _balance.div(10)
            )
        );

        _buffer = _buffer.mul(_balance).div(
            g.totalWeiContributed
        );

        WISE_CONTRACT.mintSupply(
            address(this), _buffer
        );

        WISE_CONTRACT.approve(
            address(UNISWAP_ROUTER), _buffer
        );

        (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        ) =

        UNISWAP_ROUTER.addLiquidityETH{value: _balance}(
            address(WISE_CONTRACT),
            _buffer,
            0,
            0,
            address(0x0),
            block.timestamp.add(2 hours)
        );

        g.totalTransferTokens = 0;
        g.totalReferralTokens = 0;
        g.totalWeiContributed = 0;

        emit UniSwapResult(
            amountToken, amountETH, liquidity
        );
    }


    //  WISE TOKEN PAYOUT FUNCTIONS (INDIVIDUAL)  //
    //  ----------------------------------------  //

    /** @notice Allows to mint all the tokens
      * from investor and referrer perspectives
      * @dev can be called after forwardLiquidity()
      */
    function $getMyTokens(/*💰*/)
        external
        afterUniswapTransfer
    {
        payoutInvestorAddress(msg.sender);
        payoutReferralAddress(msg.sender);
    }

    /** @notice Allows to mint tokens for specific investor address
      * @dev aggregades investors tokens across all investment days
      * and uses WISE_CONTRACT instance to mint all the WISE tokens
      * @param _investorAddress requested investor calculation address
      * @return _payout amount minted to the investors address
      */
    function payoutInvestorAddress(
        address _investorAddress
    )
        public
        afterUniswapTransfer
        returns (uint256 _payout)
    {
        for (uint8 i = 1; i <= INVESTMENT_DAYS; i++) {
            if (investorBalances[_investorAddress][i] > 0) {
                _payout += investorBalances[_investorAddress][i].mul(
                    _calculateDailyRatio(i)
                ).div(100E18);
                investorBalances[_investorAddress][i] = 0;
            }
        }
        if (_payout > 0) {
            WISE_CONTRACT.mintSupply(
                _investorAddress,
                _payout
            );
        }
    }

    /** @notice Allows to mint tokens for specific referrer address
      * @dev must be pre-calculated in prepareReferralBonuses()
      * @param _referralAddress referrer payout address
      * @return _referralTokens amount minted to the referrer address
      */
    function payoutReferralAddress(
        address _referralAddress
    ) public
        afterUniswapTransfer
        returns (uint256 _referralTokens)
    {
        _referralTokens = referralTokens[_referralAddress];
        if (referralTokens[_referralAddress] > 0) {
            referralTokens[_referralAddress] = 0;
            WISE_CONTRACT.mintSupply(
                _referralAddress,
                _referralTokens
            );
        }
    }

    //  WISE TOKEN PAYOUT FUNCTIONS (BATCHES)  //
    //  -------------------------------------  //

    /** @notice Allows to mint tokens for specific investment day
      * recommended batch size is up to 50 addresses per call
      * @param _investmentDay processing investment day
      * @param _investorBatchFrom batch starting index
      * @param _investorBatchTo bach finishing index
      */
    function payoutInvestmentDayBatch(
        uint256 _investmentDay,
        uint256 _investorBatchFrom,
        uint256 _investorBatchTo
    )
        external
        afterUniswapTransfer
        onlyFundedDays(_investmentDay)
    {
        require(
            _investorBatchFrom < _investorBatchTo,
            'WISE: incorrect investment batch'
        );

        uint256 _dailyRatio = _calculateDailyRatio(_investmentDay);

        for (uint256 i = _investorBatchFrom; i < _investorBatchTo; i++) {
            address _investor = investorAccounts[_investmentDay][i];
            uint256 _balance = investorBalances[_investor][_investmentDay];
            uint256 _payout = _balance.mul(_dailyRatio).div(100E18);

            if (investorBalances[_investor][_investmentDay] > 0) {
                investorBalances[_investor][_investmentDay] = 0;
                WISE_CONTRACT.mintSupply(
                    _investor,
                    _payout
                );
            }
        }
    }

    /** @notice Allows to mint tokens for referrers in batches
      * @dev can be called right after forwardLiquidity()
      * recommended batch size is up to 50 addresses per call
      * @param _referralBatchFrom batch starting index
      * @param _referralBatchTo bach finishing index
      */
    function payoutReferralBatch(
        uint256 _referralBatchFrom,
        uint256 _referralBatchTo
    )
        external
        afterUniswapTransfer
    {
        require(
            _referralBatchFrom < _referralBatchTo,
            'WISE: incorrect referral batch'
        );

        for (uint256 i = _referralBatchFrom; i < _referralBatchTo; i++) {
            address _referralAddress = referralAccounts[i];
            uint256 _referralTokens = referralTokens[_referralAddress];
            if (referralTokens[_referralAddress] > 0) {
                referralTokens[_referralAddress] = 0;
                WISE_CONTRACT.mintSupply(
                    _referralAddress,
                    _referralTokens
                );
            }
        }
    }

    //  INFO VIEW FUNCTIONS (PERSONAL)  //
    //  ------------------------------  //

    /** @notice checks for callers investment amount on specific day (with bonus)
      * @return total amount invested across all investment days (with bonus)
      */
    function myInvestmentAmount(uint256 _investmentDay) external view returns (uint256) {
        return investorBalances[msg.sender][_investmentDay];
    }

    /** @notice checks for callers investment amount on each day (with bonus)
      * @return _myAllDays total amount invested across all days (with bonus)
      */
    function myInvestmentAmountAllDays() external view returns (uint256[51] memory _myAllDays) {
        for (uint256 i = 1; i <= INVESTMENT_DAYS; i++) {
            _myAllDays[i] = investorBalances[msg.sender][i];
        }
    }

    /** @notice checks for callers total investment amount (with bonus)
      * @return total amount invested across all investment days (with bonus)
      */
    function myTotalInvestmentAmount() external view returns (uint256) {
        return investorTotalBalance[msg.sender];
    }


    //  INFO VIEW FUNCTIONS (GLOBAL)  //
    //  ----------------------------  //

    /** @notice checks for investors count on specific day
      * @return investors count for specific day
      */
    function investorsOnDay(uint256 _investmentDay) public view returns (uint256) {
        return dailyTotalInvestment[_investmentDay] > 0 ? investorAccountCount[_investmentDay] : 0;
    }

    /** @notice checks for investors count on each day
      * @return _allInvestors array with investors count for each day
      */
    function investorsOnAllDays() external view returns (uint256[51] memory _allInvestors) {
        for (uint256 i = 1; i <= INVESTMENT_DAYS; i++) {
            _allInvestors[i] = investorsOnDay(i);
        }
    }

    /** @notice checks for investment amount on each day
      * @return _allInvestments array with investment amount for each day
      */
    function investmentsOnAllDays() external view returns (uint256[51] memory _allInvestments) {
        for (uint256 i = 1; i <= INVESTMENT_DAYS; i++) {
            _allInvestments[i] = dailyTotalInvestment[i];
        }
    }

    /** @notice checks for supply amount on each day
      * @return _allSupply array with supply amount for each day
      */
    function supplyOnAllDays() external view returns (uint256[51] memory _allSupply) {
        for (uint256 i = 1; i <= INVESTMENT_DAYS; i++) {
            _allSupply[i] = dailyTotalSupply[i];
        }
    }


    //  HELPER FUNCTIONS (PURE)  //
    //  -----------------------  //

    /** @notice checks that provided days are valid for investemnt
      * @dev used in reserveWise() and reserveWiseWithToken()
      */
    function checkInvestmentDays(
        uint8[] memory _investmentDays,
        uint64 _currentWiseDay
    ) internal pure {
        for (uint8 _i = 0; _i < _investmentDays.length; _i++) {
            require(
                _investmentDays[_i] >= _currentWiseDay,
                'WISE: investment day already passed'
            );
            require(
                _investmentDays[_i] > 0 &&
                _investmentDays[_i] <= INVESTMENT_DAYS,
                'WISE: incorrect investment day'
            );
        }
    }

    /** @notice prepares path variable for uniswap to exchange tokens
      * @dev used in reserveWiseWithToken() swapExactTokensForETH call
      * @param _tokenAddress ERC20 token address to be swapped for ETH
      * @return _path that is used to swap tokens for ETH on uniswap
      */
    function preparePath(
        address _tokenAddress
    ) internal pure returns (
        address[] memory _path
    ) {
        _path = new address[](2);
        _path[0] = _tokenAddress;
        _path[1] = WETH;
    }

    /** @notice keeps team contribution at caped level
      * @dev subtracts amount during forwardLiquidity()
      * @return ETH amount the team is allowed to withdraw
      */
    function _teamContribution(
        uint256 _teamAmount
    ) internal pure returns (uint256) {
        return _teamAmount > TEAM_ETHER_MAX ? TEAM_ETHER_MAX : _teamAmount;
    }

    /** @notice checks for invesments on all days
      * @dev used in forwardLiquidity() requirements
      * @return $fundedDays - amount of funded days 0-50
      */
    function fundedDays() public view returns (
        uint8 $fundedDays
    ) {
        for (uint8 i = 1; i <= INVESTMENT_DAYS; i++) {
            if (dailyTotalInvestment[i] > 0) $fundedDays++;
        }
    }

    /** @notice WISE equivalent in ETH price calculation
      * @dev returned value has 100E18 precision - divided later on
      * @return token price for specific day based on total investement
      */
    function _calculateDailyRatio(
        uint256 _investmentDay
    ) internal view returns (uint256) {

        uint256 dailyRatio = dailyTotalSupply[_investmentDay].mul(100E18)
            .div(dailyTotalInvestment[_investmentDay]);

        uint256 remainderCheck = dailyTotalSupply[_investmentDay].mul(100E18)
            .mod(dailyTotalInvestment[_investmentDay]);

        return remainderCheck == 0 ? dailyRatio : dailyRatio.add(1);
    }

    //  TIMING FUNCTIONS  //
    //  ----------------  //

    /** @notice shows current day of WiseToken
      * @dev value is fetched from WISE_CONTRACT
      * @return iteration day since WISE inception
      */
    function _currentWiseDay() public view returns (uint64) {
        return WISE_CONTRACT.currentWiseDay();
    }

    //  EMERGENCY REFUND FUNCTIONS  //
    //  --------------------------  //

    /** @notice allows refunds if funds are stuck
      * @param _investor address to be refunded
      * @return _amount refunded to the investor
      */
    function requestRefund(
        address payable _investor,
        address payable _succesor
    ) external returns (
        uint256 _amount
    ) {
        require(
            g.totalWeiContributed > 0  &&
            originalInvestment[_investor] > 0 &&
            _currentWiseDay() > INVESTMENT_DAYS + 10,
           unicode'WISE: liquidity successfully forwarded to uniswap 🦄'
        );

        // refunds the investor
        _amount = originalInvestment[_investor];
        originalInvestment[_investor] = 0;
        _succesor.transfer(_amount);

        // deny possible comeback
        g.totalTransferTokens = 0;
    }

    /** @notice allows to withdraw team funds for the work
      * strictly only after the uniswap liquidity is formed
      * @param _amount value to withdraw from the contract
      */
    function requestTeamFunds(
        uint256 _amount
    )
        external
        afterUniswapTransfer
    {
        TEAM_ADDRESS.transfer(_amount);
    }

    function notContract(address _addr) internal view returns (bool) {
        uint32 size;
        assembly {
            size := extcodesize(_addr)
        }
        return (size == 0);
    }

}

library SafeMathLT {

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'WISE: addition overflow');
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, 'WISE: subtraction overflow');
        uint256 c = a - b;
        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {

        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, 'WISE: multiplication overflow');

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, 'WISE: division by zero');
        uint256 c = a / b;
        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b != 0, 'WISE: modulo by zero');
        return a % b;
    }
}

library Buffer {

    struct buffer {
        bytes buf;
        uint capacity;
    }

    function init(buffer memory _buf, uint _capacity) internal pure {
        uint capacity = _capacity;
        if (capacity % 32 != 0) {
            capacity += 32 - (capacity % 32);
        }
        _buf.capacity = capacity; // Allocate space for the buffer data
        assembly {
            let ptr := mload(0x40)
            mstore(_buf, ptr)
            mstore(ptr, 0)
            mstore(0x40, add(ptr, capacity))
        }
    }

    function resize(buffer memory _buf, uint _capacity) private pure {
        bytes memory oldbuf = _buf.buf;
        init(_buf, _capacity);
        append(_buf, oldbuf);
    }

    function max(uint _a, uint _b) private pure returns (uint _max) {
        if (_a > _b) {
            return _a;
        }
        return _b;
    }
    /**
      * @dev Appends a byte array to the end of the buffer. Resizes if doing so
      *      would exceed the capacity of the buffer.
      * @param _buf The buffer to append to.
      * @param _data The data to append.
      * @return _buffer The original buffer.
      *
      */
    function append(buffer memory _buf, bytes memory _data) internal pure returns (buffer memory _buffer) {
        if (_data.length + _buf.buf.length > _buf.capacity) {
            resize(_buf, max(_buf.capacity, _data.length) * 2);
        }
        uint dest;
        uint src;
        uint len = _data.length;
        assembly {
            let bufptr := mload(_buf) // Memory address of the buffer data
            let buflen := mload(bufptr) // Length of existing buffer data
            dest := add(add(bufptr, buflen), 32) // Start address = buffer address + buffer length + sizeof(buffer length)
            mstore(bufptr, add(buflen, mload(_data))) // Update buffer length
            src := add(_data, 32)
        }
        for(; len >= 32; len -= 32) { // Copy word-length chunks while possible
            assembly {
                mstore(dest, mload(src))
            }
            dest += 32;
            src += 32;
        }
        uint mask = 256 ** (32 - len) - 1; // Copy remaining bytes
        assembly {
            let srcpart := and(mload(src), not(mask))
            let destpart := and(mload(dest), mask)
            mstore(dest, or(destpart, srcpart))
        }
        return _buf;
    }
    /**
      *
      * @dev Appends a byte to the end of the buffer. Resizes if doing so would
      * exceed the capacity of the buffer.
      * @param _buf The buffer to append to.
      * @param _data The data to append.
      *
      */
    function append(buffer memory _buf, uint8 _data) internal pure {
        if (_buf.buf.length + 1 > _buf.capacity) {
            resize(_buf, _buf.capacity * 2);
        }
        assembly {
            let bufptr := mload(_buf) // Memory address of the buffer data
            let buflen := mload(bufptr) // Length of existing buffer data
            let dest := add(add(bufptr, buflen), 32) // Address = buffer address + buffer length + sizeof(buffer length)
            mstore8(dest, _data)
            mstore(bufptr, add(buflen, 1)) // Update buffer length
        }
    }
    /**
      *
      * @dev Appends a byte to the end of the buffer. Resizes if doing so would
      * exceed the capacity of the buffer.
      * @param _buf The buffer to append to.
      * @param _data The data to append.
      * @return _buffer The original buffer.
      *
      */
    function appendInt(buffer memory _buf, uint _data, uint _len) internal pure returns (buffer memory _buffer) {
        if (_len + _buf.buf.length > _buf.capacity) {
            resize(_buf, max(_buf.capacity, _len) * 2);
        }
        uint mask = 256 ** _len - 1;
        assembly {
            let bufptr := mload(_buf) // Memory address of the buffer data
            let buflen := mload(bufptr) // Length of existing buffer data
            let dest := add(add(bufptr, buflen), _len) // Address = buffer address + buffer length + sizeof(buffer length) + len
            mstore(dest, or(and(mload(dest), not(mask)), _data))
            mstore(bufptr, add(buflen, _len)) // Update buffer length
        }
        return _buf;
    }
}

library CBOR {

    using Buffer for Buffer.buffer;

    uint8 private constant MAJOR_TYPE_INT = 0;
    uint8 private constant MAJOR_TYPE_MAP = 5;
    uint8 private constant MAJOR_TYPE_BYTES = 2;
    uint8 private constant MAJOR_TYPE_ARRAY = 4;
    uint8 private constant MAJOR_TYPE_STRING = 3;
    uint8 private constant MAJOR_TYPE_NEGATIVE_INT = 1;
    uint8 private constant MAJOR_TYPE_CONTENT_FREE = 7;

    function encodeType(Buffer.buffer memory _buf, uint8 _major, uint _value) private pure {
        if (_value <= 23) {
            _buf.append(uint8((_major << 5) | _value));
        } else if (_value <= 0xFF) {
            _buf.append(uint8((_major << 5) | 24));
            _buf.appendInt(_value, 1);
        } else if (_value <= 0xFFFF) {
            _buf.append(uint8((_major << 5) | 25));
            _buf.appendInt(_value, 2);
        } else if (_value <= 0xFFFFFFFF) {
            _buf.append(uint8((_major << 5) | 26));
            _buf.appendInt(_value, 4);
        } else if (_value <= 0xFFFFFFFFFFFFFFFF) {
            _buf.append(uint8((_major << 5) | 27));
            _buf.appendInt(_value, 8);
        }
    }

    function encodeIndefiniteLengthType(Buffer.buffer memory _buf, uint8 _major) private pure {
        _buf.append(uint8((_major << 5) | 31));
    }

    function encodeUInt(Buffer.buffer memory _buf, uint _value) internal pure {
        encodeType(_buf, MAJOR_TYPE_INT, _value);
    }

    function encodeInt(Buffer.buffer memory _buf, int _value) internal pure {
        if (_value >= 0) {
            encodeType(_buf, MAJOR_TYPE_INT, uint(_value));
        } else {
            encodeType(_buf, MAJOR_TYPE_NEGATIVE_INT, uint(-1 - _value));
        }
    }

    function encodeBytes(Buffer.buffer memory _buf, bytes memory _value) internal pure {
        encodeType(_buf, MAJOR_TYPE_BYTES, _value.length);
        _buf.append(_value);
    }

    function encodeString(Buffer.buffer memory _buf, string memory _value) internal pure {
        encodeType(_buf, MAJOR_TYPE_STRING, bytes(_value).length);
        _buf.append(bytes(_value));
    }

    function startArray(Buffer.buffer memory _buf) internal pure {
        encodeIndefiniteLengthType(_buf, MAJOR_TYPE_ARRAY);
    }

    function startMap(Buffer.buffer memory _buf) internal pure {
        encodeIndefiniteLengthType(_buf, MAJOR_TYPE_MAP);
    }

    function endSequence(Buffer.buffer memory _buf) internal pure {
        encodeIndefiniteLengthType(_buf, MAJOR_TYPE_CONTENT_FREE);
    }
}

{"Declaration.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./Global.sol\";\r\n\r\ninterface IUniswapV2Factory {\r\n\r\n    function createPair(\r\n        address tokenA,\r\n        address tokenB\r\n    ) external returns (\r\n        address pair\r\n    );\r\n}\r\n\r\ninterface IUniswapRouterV2 {\r\n\r\n    function getAmountsOut(\r\n        uint amountIn,\r\n        address[] calldata path\r\n    ) external view returns (\r\n        uint[] memory amounts\r\n    );\r\n\r\n    function swapExactTokensForTokens(\r\n        uint amountIn,\r\n        uint amountOutMin,\r\n        address[] calldata path,\r\n        address to,\r\n        uint deadline\r\n    ) external returns (\r\n        uint[] memory amounts\r\n    );\r\n\r\n    function swapExactETHForTokens(\r\n        uint amountOutMin,\r\n        address[] calldata path,\r\n        address to,\r\n        uint deadline\r\n    ) external payable returns (\r\n        uint[] memory amounts\r\n    );\r\n}\r\n\r\ninterface IUniswapV2Pair {\r\n\r\n    function getReserves() external view returns (\r\n        uint112 reserve0,\r\n        uint112 reserve1,\r\n        uint32 blockTimestampLast\r\n    );\r\n\r\n    function transfer(\r\n        address to,\r\n        uint256 value\r\n    ) external returns (bool);\r\n\r\n    function transferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 value\r\n    ) external returns (bool);\r\n\r\n    function balanceOf(\r\n        address owner\r\n    ) external view returns (uint256);\r\n\r\n    function token1() external view returns (address);\r\n    function totalSupply() external view returns (uint256);\r\n}\r\n\r\ninterface ILiquidityGuard {\r\n    function getInflation(uint32 _amount) external view returns (uint256);\r\n}\r\n\r\ninterface ERC20TokenI {\r\n\r\n    function transferFrom(\r\n        address _from,\r\n        address _to,\r\n        uint256 _value\r\n    )  external returns (\r\n        bool success\r\n    );\r\n\r\n    function approve(\r\n        address _spender,\r\n        uint256 _value\r\n    )  external returns (\r\n        bool success\r\n    );\r\n}\r\n\r\nabstract contract Declaration is Global {\r\n\r\n    uint256 constant _decimals = 18;\r\n    uint256 constant YODAS_PER_WISE = 10 ** _decimals;\r\n\r\n    uint32 constant SECONDS_IN_DAY = 86400 seconds;\r\n    uint16 constant MIN_LOCK_DAYS = 1;\r\n    uint16 constant FORMULA_DAY = 65;\r\n    uint16 constant MAX_LOCK_DAYS = 15330; // 42 years\r\n    uint16 constant MAX_BONUS_DAYS_A = 1825; // 5 years\r\n    uint16 constant MAX_BONUS_DAYS_B = 13505; // 37 years\r\n    uint16 constant MIN_REFERRAL_DAYS = 365;\r\n\r\n    uint32 constant MIN_STAKE_AMOUNT = 1000000;\r\n    uint32 constant REFERRALS_RATE = 366816973; // 1.000% (direct value, can be used right away)\r\n    uint32 constant INFLATION_RATE_MAX = 103000; // 3.000% (indirect -\u003e checks throgh LiquidityGuard)\r\n\r\n    uint32 public INFLATION_RATE = 103000; // 3.000% (indirect -\u003e checks throgh LiquidityGuard)\r\n    uint32 public LIQUIDITY_RATE = 100006; // 0.006% (indirect -\u003e checks throgh LiquidityGuard)\r\n\r\n    uint64 constant PRECISION_RATE = 1E18;\r\n\r\n    uint96 constant THRESHOLD_LIMIT = 10000E18; // $10,000 DAI Mainnet\r\n    uint96 constant DAILY_BONUS_A = 13698630136986302; // 25%:1825 = 0.01369863013 per day;\r\n    uint96 constant DAILY_BONUS_B = 370233246945576;   // 5%:13505 = 0.00037023324 per day;\r\n\r\n    uint256 immutable LAUNCH_TIME;\r\n\r\n    address constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\r\n    address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\r\n\r\n    IUniswapRouterV2 public constant UNISWAP_ROUTER = IUniswapRouterV2(\r\n        0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D\r\n    );\r\n\r\n    IUniswapV2Factory public constant UNISWAP_FACTORY = IUniswapV2Factory(\r\n        0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f\r\n    );\r\n\r\n    ILiquidityGuard public constant LIQUIDITY_GUARD = ILiquidityGuard(\r\n        0x9C306CaD86550EC80D77668c0A8bEE6eB34684B6\r\n    );\r\n\r\n    IUniswapV2Pair public UNISWAP_PAIR;\r\n    bool public isLiquidityGuardActive;\r\n\r\n    uint256 public latestDaiEquivalent;\r\n    address[] internal _path = [address(this), WETH, DAI];\r\n\r\n    constructor() {\r\n        LAUNCH_TIME = 1604966400; // (10th November 2020 @00:00 GMT == day 0)\r\n    }\r\n\r\n    function createPair() external {\r\n        UNISWAP_PAIR = IUniswapV2Pair(\r\n            UNISWAP_FACTORY.createPair(\r\n                WETH, address(this)\r\n            )\r\n        );\r\n    }\r\n\r\n    struct Stake {\r\n        uint256 stakesShares;\r\n        uint256 stakedAmount;\r\n        uint256 rewardAmount;\r\n        uint64 startDay;\r\n        uint64 lockDays;\r\n        uint64 finalDay;\r\n        uint64 closeDay;\r\n        uint256 scrapeDay;\r\n        uint256 daiEquivalent;\r\n        uint256 referrerShares;\r\n        address referrer;\r\n        bool isActive;\r\n    }\r\n\r\n    struct ReferrerLink {\r\n        address staker;\r\n        bytes16 stakeID;\r\n        uint256 rewardAmount;\r\n        uint256 processedDays;\r\n        bool isActive;\r\n    }\r\n\r\n    struct LiquidityStake {\r\n        uint256 stakedAmount;\r\n        uint256 rewardAmount;\r\n        uint64 startDay;\r\n        uint64 closeDay;\r\n        bool isActive;\r\n    }\r\n\r\n    struct CriticalMass {\r\n        uint256 totalAmount;\r\n        uint256 activationDay;\r\n    }\r\n\r\n    mapping(address =\u003e uint256) public stakeCount;\r\n    mapping(address =\u003e uint256) public referralCount;\r\n    mapping(address =\u003e uint256) public liquidityStakeCount;\r\n\r\n    mapping(address =\u003e CriticalMass) public criticalMass;\r\n    mapping(address =\u003e mapping(bytes16 =\u003e Stake)) public stakes;\r\n    mapping(address =\u003e mapping(bytes16 =\u003e ReferrerLink)) public referrerLinks;\r\n    mapping(address =\u003e mapping(bytes16 =\u003e LiquidityStake)) public liquidityStakes;\r\n\r\n    mapping(uint256 =\u003e uint256) public scheduledToEnd;\r\n    mapping(uint256 =\u003e uint256) public referralSharesToEnd;\r\n    mapping(uint256 =\u003e uint256) public totalPenalties;\r\n}\r\n"},"ERC20.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\ncontract Context {\r\n\r\n    /**\r\n     * @dev returns address executing the method\r\n     */\r\n    function _msgSender() internal view virtual returns (address payable) {\r\n        return msg.sender;\r\n    }\r\n\r\n    /**\r\n     * @dev returns data passed into the method\r\n     */\r\n    function _msgData() internal view virtual returns (bytes memory) {\r\n        this;\r\n        return msg.data;\r\n    }\r\n}\r\n\r\ncontract ERC20 is Context {\r\n\r\n    using SafeMath for uint256;\r\n\r\n    mapping (address =\u003e uint256) private _balances;\r\n    mapping (address =\u003e mapping (address =\u003e uint256)) private _allowances;\r\n\r\n    /**\r\n     * @dev initial private\r\n     */\r\n    string private _name;\r\n    string private _symbol;\r\n    uint8 private _decimals;\r\n\r\n    /**\r\n     * @dev 👻 ghost supply - unclaimable\r\n     */\r\n    uint256 private _totalSupply = 0.404 ether;\r\n\r\n    event Transfer(\r\n        address indexed from,\r\n        address indexed to,\r\n        uint256 value\r\n    );\r\n\r\n    event Approval(\r\n        address indexed owner,\r\n        address indexed spender,\r\n        uint256 value\r\n    );\r\n\r\n    constructor (string memory tokenName, string memory tokenSymbol) {\r\n        _name = tokenName;\r\n        _symbol = tokenSymbol;\r\n        _decimals = 18;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the name of the token.\r\n     */\r\n    function name() public view returns (string memory) {\r\n        return _name;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the symbol of the token.\r\n     */\r\n    function symbol() public view returns (string memory) {\r\n        return _symbol;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the decimals of the token.\r\n     */\r\n    function decimals() public view returns (uint8) {\r\n        return _decimals;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the total supply of the token.\r\n     */\r\n    function totalSupply() public view returns (uint256) {\r\n        return _totalSupply;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the token balance of specific address.\r\n     */\r\n    function balanceOf(address account) public view returns (uint256) {\r\n        return _balances[account];\r\n    }\r\n\r\n    function transfer(\r\n        address recipient,\r\n        uint256 amount\r\n    )\r\n        public\r\n        returns (bool)\r\n    {\r\n        _transfer(\r\n            _msgSender(),\r\n            recipient,\r\n            amount\r\n        );\r\n\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns approved balance to be spent by another address\r\n     * by using transferFrom method\r\n     */\r\n    function allowance(\r\n        address owner,\r\n        address spender\r\n    )\r\n        public\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return _allowances[owner][spender];\r\n    }\r\n\r\n    /**\r\n     * @dev Sets the token allowance to another spender\r\n     */\r\n    function approve(\r\n        address spender,\r\n        uint256 amount\r\n    )\r\n        public\r\n        returns (bool)\r\n    {\r\n        _approve(\r\n            _msgSender(),\r\n            spender,\r\n            amount\r\n        );\r\n\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Allows to transfer tokens on senders behalf\r\n     * based on allowance approved for the executer\r\n     */\r\n    function transferFrom(\r\n        address sender,\r\n        address recipient,\r\n        uint256 amount\r\n    )\r\n        public\r\n        returns (bool)\r\n    {\r\n        _transfer(\r\n            sender,\r\n            recipient,\r\n            amount\r\n        );\r\n        _approve(sender,\r\n            _msgSender(), _allowances[sender][_msgSender()].sub(\r\n                amount\r\n            )\r\n        );\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Moves tokens `amount` from `sender` to `recipient`.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     * Requirements:\r\n     *\r\n     * - `sender` cannot be the zero address.\r\n     * - `recipient` cannot be the zero address.\r\n     * - `sender` must have a balance of at least `amount`.\r\n     */\r\n    function _transfer(\r\n        address sender,\r\n        address recipient,\r\n        uint256 amount\r\n    )\r\n        internal\r\n        virtual\r\n    {\r\n        require(\r\n            sender != address(0x0),\r\n            \u0027ERC20: transfer from the zero address\u0027\r\n        );\r\n\r\n        require(\r\n            recipient != address(0x0),\r\n            \u0027ERC20: transfer to the zero address\u0027\r\n        );\r\n\r\n        _balances[sender] =\r\n        _balances[sender].sub(amount);\r\n\r\n        _balances[recipient] =\r\n        _balances[recipient].add(amount);\r\n\r\n        emit Transfer(\r\n            sender,\r\n            recipient,\r\n            amount\r\n        );\r\n    }\r\n\r\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\r\n     * the total supply.\r\n     *\r\n     * Emits a {Transfer} event with `from` set to the zero address.\r\n     * Requirements:\r\n     *\r\n     * - `to` cannot be the zero address.\r\n     */\r\n    function _mint(\r\n        address account,\r\n        uint256 amount\r\n    )\r\n        internal\r\n        virtual\r\n    {\r\n        require(\r\n            account != address(0x0),\r\n            \u0027ERC20: mint to the zero address\u0027\r\n        );\r\n\r\n        _totalSupply =\r\n        _totalSupply.add(amount);\r\n\r\n        _balances[account] =\r\n        _balances[account].add(amount);\r\n\r\n        emit Transfer(\r\n            address(0x0),\r\n            account,\r\n            amount\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @dev Destroys `amount` tokens from `account`, reducing the\r\n     * total supply.\r\n     *\r\n     * Emits a {Transfer} event with `to` set to the zero address.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `account` cannot be the zero address.\r\n     * - `account` must have at least `amount` tokens.\r\n     */\r\n    function _burn(\r\n        address account,\r\n        uint256 amount\r\n    )\r\n        internal\r\n        virtual\r\n    {\r\n        require(\r\n            account != address(0x0),\r\n            \u0027ERC20: burn from the zero address\u0027\r\n        );\r\n\r\n        _balances[account] =\r\n        _balances[account].sub(amount);\r\n\r\n        _totalSupply =\r\n        _totalSupply.sub(amount);\r\n\r\n        emit Transfer(\r\n            account,\r\n            address(0x0),\r\n            amount\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\r\n     * Emits an {Approval} event.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `owner` cannot be the zero address.\r\n     * - `spender` cannot be the zero address.\r\n     */\r\n    function _approve(\r\n        address owner,\r\n        address spender,\r\n        uint256 amount\r\n    )\r\n        internal\r\n        virtual\r\n    {\r\n        require(\r\n            owner != address(0x0)\r\n        );\r\n\r\n        require(\r\n            spender != address(0x0)\r\n        );\r\n\r\n        _allowances[owner][spender] = amount;\r\n\r\n        emit Approval(\r\n            owner,\r\n            spender,\r\n            amount\r\n        );\r\n    }\r\n}\r\n\r\nimport \"./SafeMath.sol\";\r\n"},"Events.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\ncontract Events {\r\n\r\n    event StakeStart(\r\n        bytes16 indexed stakeID,\r\n        address indexed stakerAddress,\r\n        address indexed referralAddress,\r\n        uint256 stakedAmount,\r\n        uint256 stakesShares,\r\n        uint256 referralShares,\r\n        uint256 startDay,\r\n        uint256 lockDays,\r\n        uint256 daiEquivalent\r\n    );\r\n\r\n    event StakeEnd(\r\n        bytes16 indexed stakeID,\r\n        address indexed stakerAddress,\r\n        address indexed referralAddress,\r\n        uint256 stakedAmount,\r\n        uint256 stakesShares,\r\n        uint256 referralShares,\r\n        uint256 rewardAmount,\r\n        uint256 closeDay,\r\n        uint256 penaltyAmount\r\n    );\r\n\r\n    event InterestScraped(\r\n        bytes16 indexed stakeID,\r\n        address indexed stakerAddress,\r\n        uint256 scrapeAmount,\r\n        uint256 scrapeDay,\r\n        uint256 stakersPenalty,\r\n        uint256 referrerPenalty,\r\n        uint256 currentWiseDay\r\n    );\r\n\r\n    event ReferralCollected(\r\n        address indexed staker,\r\n        bytes16 indexed stakeID,\r\n        address indexed referrer,\r\n        bytes16 referrerID,\r\n        uint256 rewardAmount\r\n    );\r\n\r\n    event NewGlobals(\r\n        uint256 totalShares,\r\n        uint256 totalStaked,\r\n        uint256 shareRate,\r\n        uint256 referrerShares,\r\n        uint256 indexed currentWiseDay\r\n    );\r\n\r\n    event NewSharePrice(\r\n        uint256 newSharePrice,\r\n        bytes32 stakeID\r\n    );\r\n\r\n    event UniswapReserves(\r\n        uint112 reserveA,\r\n        uint112 reserveB,\r\n        uint32 blockTimestampLast\r\n    );\r\n\r\n    event LiquidityGuardStatus(\r\n        bool isActive\r\n    );\r\n}"},"Global.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./ERC20.sol\";\r\nimport \"./Events.sol\";\r\n\r\nabstract contract Global is ERC20, Events {\r\n\r\n    using SafeMath for uint256;\r\n\r\n    struct Globals {\r\n        uint256 totalStaked;\r\n        uint256 totalShares;\r\n        uint256 sharePrice;\r\n        uint256 currentWiseDay;\r\n        uint256 referralShares;\r\n    }\r\n\r\n    Globals public globals;\r\n\r\n    constructor() {\r\n        globals.sharePrice = 100E15;\r\n    }\r\n\r\n    function _increaseGlobals(\r\n        uint256 _staked,\r\n        uint256 _shares,\r\n        uint256 _rshares\r\n    )\r\n        internal\r\n    {\r\n        globals.totalStaked =\r\n        globals.totalStaked.add(_staked);\r\n\r\n        globals.totalShares =\r\n        globals.totalShares.add(_shares);\r\n\r\n        if (_rshares \u003e 0) {\r\n\r\n            globals.referralShares =\r\n            globals.referralShares.add(_rshares);\r\n        }\r\n\r\n        _logGlobals();\r\n    }\r\n\r\n    function _decreaseGlobals(\r\n        uint256 _staked,\r\n        uint256 _shares,\r\n        uint256 _rshares\r\n    )\r\n        internal\r\n    {\r\n        globals.totalStaked =\r\n        globals.totalStaked \u003e _staked ?\r\n        globals.totalStaked - _staked : 0;\r\n\r\n        globals.totalShares =\r\n        globals.totalShares \u003e _shares ?\r\n        globals.totalShares - _shares : 0;\r\n\r\n        if (_rshares \u003e 0) {\r\n\r\n            globals.referralShares =\r\n            globals.referralShares \u003e _rshares ?\r\n            globals.referralShares - _rshares : 0;\r\n\r\n        }\r\n\r\n        _logGlobals();\r\n    }\r\n\r\n    function _logGlobals()\r\n        private\r\n    {\r\n        emit NewGlobals(\r\n            globals.totalShares,\r\n            globals.totalStaked,\r\n            globals.sharePrice,\r\n            globals.referralShares,\r\n            globals.currentWiseDay\r\n        );\r\n    }\r\n}"},"Helper.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./Timing.sol\";\r\n\r\nabstract contract Helper is Timing {\r\n\r\n    using SafeMath for uint256;\r\n\r\n    function notContract(address _addr) internal view returns (bool) {\r\n        uint32 size;\r\n        assembly {\r\n            size := extcodesize(_addr)\r\n        }\r\n        return (size == 0);\r\n    }\r\n\r\n    function toBytes16(uint256 x) internal pure returns (bytes16 b) {\r\n       return bytes16(bytes32(x));\r\n    }\r\n\r\n    function generateID(address x, uint256 y, bytes1 z) public pure returns (bytes16 b) {\r\n        b = toBytes16(\r\n            uint256(\r\n                keccak256(\r\n                    abi.encodePacked(x, y, z)\r\n                )\r\n            )\r\n        );\r\n    }\r\n\r\n    function generateStakeID(address _staker) internal view returns (bytes16 stakeID) {\r\n        return generateID(_staker, stakeCount[_staker], 0x01);\r\n    }\r\n\r\n    function generateReferralID(address _referrer) internal view returns (bytes16 referralID) {\r\n        return generateID(_referrer, referralCount[_referrer], 0x02);\r\n    }\r\n\r\n    function generateLiquidityStakeID(address _staker) internal view returns (bytes16 liquidityStakeID) {\r\n        return generateID(_staker, liquidityStakeCount[_staker], 0x03);\r\n    }\r\n\r\n    function activeStakesCount(\r\n        address _staker\r\n    )\r\n        external\r\n        view\r\n        returns (\r\n            uint256 activeCount\r\n        )\r\n    {\r\n        for (uint256 _stakeIndex = 0; _stakeIndex \u003c= stakeCount[_staker]; _stakeIndex++) {\r\n            bytes16 _stakeID = generateID(_staker, _stakeIndex - 1, 0x01);\r\n            if (stakes[_staker][_stakeID].isActive) {\r\n                activeCount++;\r\n            }\r\n        }\r\n    }\r\n\r\n    function activeReferralCount(\r\n        address _referrer\r\n    )\r\n        external\r\n        view\r\n        returns (\r\n            uint256 activeCount\r\n        )\r\n    {\r\n        for (uint256 _rIndex = 0; _rIndex \u003c= referralCount[_referrer]; _rIndex++) {\r\n            bytes16 _rID = generateID(_referrer, _rIndex - 1, 0x02);\r\n            if (referrerLinks[_referrer][_rID].isActive) {\r\n                activeCount++;\r\n            }\r\n        }\r\n    }\r\n\r\n    function stakesPagination(\r\n        address _staker,\r\n        uint256 _offset,\r\n        uint256 _length\r\n    )\r\n        external\r\n        view\r\n        returns (bytes16[] memory _stakes)\r\n    {\r\n        uint256 start = _offset \u003e 0 \u0026\u0026\r\n            stakeCount[_staker] \u003e _offset ?\r\n            stakeCount[_staker] - _offset : stakeCount[_staker];\r\n\r\n        uint256 finish = _length \u003e 0 \u0026\u0026\r\n            start \u003e _length ?\r\n            start - _length : 0;\r\n\r\n        uint256 i;\r\n\r\n        _stakes = new bytes16[](start - finish);\r\n\r\n        for (uint256 _stakeIndex = start; _stakeIndex \u003e finish; _stakeIndex--) {\r\n            bytes16 _stakeID = generateID(_staker, _stakeIndex - 1, 0x01);\r\n            if (stakes[_staker][_stakeID].stakedAmount \u003e 0) {\r\n                _stakes[i] = _stakeID; i++;\r\n            }\r\n        }\r\n    }\r\n\r\n    function referralsPagination(\r\n        address _referrer,\r\n        uint256 _offset,\r\n        uint256 _length\r\n    )\r\n        external\r\n        view\r\n        returns (bytes16[] memory _referrals)\r\n    {\r\n        uint256 start = _offset \u003e 0 \u0026\u0026\r\n            referralCount[_referrer] \u003e _offset ?\r\n            referralCount[_referrer] - _offset : referralCount[_referrer];\r\n\r\n        uint256 finish = _length \u003e 0 \u0026\u0026\r\n            start \u003e _length ?\r\n            start - _length : 0;\r\n\r\n        uint256 i;\r\n\r\n        _referrals = new bytes16[](start - finish);\r\n\r\n        for (uint256 _rIndex = start; _rIndex \u003e finish; _rIndex--) {\r\n            bytes16 _rID = generateID(_referrer, _rIndex - 1, 0x02);\r\n            if (_nonZeroAddress(referrerLinks[_referrer][_rID].staker)) {\r\n                _referrals[i] = _rID; i++;\r\n            }\r\n        }\r\n    }\r\n\r\n    function latestStakeID(address _staker) external view returns (bytes16) {\r\n        return stakeCount[_staker] == 0 ? bytes16(0) : generateID(_staker, stakeCount[_staker].sub(1), 0x01);\r\n    }\r\n\r\n    function latestReferralID(address _referrer) external view returns (bytes16) {\r\n        return referralCount[_referrer] == 0 ? bytes16(0) : generateID(_referrer, referralCount[_referrer].sub(1), 0x02);\r\n    }\r\n\r\n    function latestLiquidityStakeID(address _staker) external view returns (bytes16) {\r\n        return liquidityStakeCount[_staker] == 0 ? bytes16(0) : generateID(_staker, liquidityStakeCount[_staker].sub(1), 0x03);\r\n    }\r\n\r\n    function _increaseStakeCount(address _staker) internal {\r\n        stakeCount[_staker] = stakeCount[_staker] + 1;\r\n    }\r\n\r\n    function _increaseReferralCount(address _referrer) internal {\r\n        referralCount[_referrer] = referralCount[_referrer] + 1;\r\n    }\r\n\r\n    function _increaseLiquidityStakeCount(address _staker) internal {\r\n        liquidityStakeCount[_staker] = liquidityStakeCount[_staker] + 1;\r\n    }\r\n\r\n    function _isMatureStake(Stake memory _stake) internal view returns (bool) {\r\n        return _stake.closeDay \u003e 0\r\n            ? _stake.finalDay \u003c= _stake.closeDay\r\n            : _stake.finalDay \u003c= _currentWiseDay();\r\n    }\r\n\r\n    function _notCriticalMassReferrer(address _referrer) internal view returns (bool) {\r\n        return criticalMass[_referrer].activationDay == 0;\r\n    }\r\n\r\n    function _stakeNotStarted(Stake memory _stake) internal view returns (bool) {\r\n        return _stake.closeDay \u003e 0\r\n            ? _stake.startDay \u003e _stake.closeDay\r\n            : _stake.startDay \u003e _currentWiseDay();\r\n    }\r\n\r\n    function _stakeEnded(Stake memory _stake) internal view returns (bool) {\r\n        return _stake.isActive == false || _isMatureStake(_stake);\r\n    }\r\n\r\n    function _daysLeft(Stake memory _stake) internal view returns (uint256) {\r\n        return _stake.isActive == false\r\n            ? _daysDiff(_stake.closeDay, _stake.finalDay)\r\n            : _daysDiff(_currentWiseDay(), _stake.finalDay);\r\n    }\r\n\r\n    function _daysDiff(uint256 _startDate, uint256 _endDate) internal pure returns (uint256) {\r\n        return _startDate \u003e _endDate ? 0 : _endDate.sub(_startDate);\r\n    }\r\n\r\n    function _calculationDay(Stake memory _stake) internal view returns (uint256) {\r\n        return _stake.finalDay \u003e globals.currentWiseDay ? globals.currentWiseDay : _stake.finalDay;\r\n    }\r\n\r\n    function _startingDay(Stake memory _stake) internal pure returns (uint256) {\r\n        return _stake.scrapeDay == 0 ? _stake.startDay : _stake.scrapeDay;\r\n    }\r\n\r\n    function _notFuture(uint256 _day) internal view returns (bool) {\r\n        return _day \u003c= _currentWiseDay();\r\n    }\r\n\r\n    function _notPast(uint256 _day) internal view returns (bool) {\r\n        return _day \u003e= _currentWiseDay();\r\n    }\r\n\r\n    function _nonZeroAddress(address _address) internal pure returns (bool) {\r\n        return _address != address(0x0);\r\n    }\r\n\r\n    function _getLockDays(Stake memory _stake) internal pure returns (uint256) {\r\n        return\r\n            _stake.lockDays \u003e 1 ?\r\n            _stake.lockDays - 1 : 1;\r\n    }\r\n\r\n    function _preparePath(\r\n        address _tokenAddress,\r\n        address _wiseAddress\r\n    )\r\n        internal\r\n        pure\r\n        returns (address[] memory _path)\r\n    {\r\n        _path = new address[](3);\r\n        _path[0] = _tokenAddress;\r\n        _path[1] = WETH;\r\n        _path[2] = _wiseAddress;\r\n    }\r\n\r\n    function safeTransfer(\r\n        address token,\r\n        address to,\r\n        uint256 value\r\n    )\r\n        internal\r\n    {\r\n        (bool success, bytes memory data) = token.call(\r\n            abi.encodeWithSelector(\r\n                0xa9059cbb,\r\n                to,\r\n                value\r\n            )\r\n        );\r\n\r\n        require(\r\n            success \u0026\u0026 (data.length == 0 || abi.decode(data, (bool)))\r\n            // \u0027WISE: transfer failed\u0027\r\n        );\r\n    }\r\n\r\n    function safeTransferFrom(\r\n        address token,\r\n        address from,\r\n        address to,\r\n        uint value\r\n    )\r\n        internal\r\n    {\r\n        (bool success, bytes memory data) = token.call(\r\n            abi.encodeWithSelector(\r\n                0x23b872dd,\r\n                from,\r\n                to,\r\n                value\r\n            )\r\n        );\r\n\r\n        require(\r\n            success \u0026\u0026 (data.length == 0 || abi.decode(data, (bool)))\r\n            // \u0027WISE: transferFrom failed\u0027\r\n        );\r\n    }\r\n}"},"LiquidityToken.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./StakingToken.sol\";\r\n\r\nabstract contract LiquidityToken is StakingToken {\r\n\r\n    /**\r\n     * @notice A method for a staker to create a liquidity stake\r\n     * @param _liquidityTokens amount of UNI-WISE staked.\r\n     */\r\n    function createLiquidityStake(\r\n        uint256 _liquidityTokens\r\n    )\r\n        snapshotTrigger\r\n        external\r\n        returns (bytes16 liquidityStakeID)\r\n    {\r\n        safeTransferFrom(\r\n            address(UNISWAP_PAIR),\r\n            msg.sender,\r\n            address(this),\r\n            _liquidityTokens\r\n        );\r\n\r\n        LiquidityStake memory newLiquidityStake;\r\n\r\n        liquidityStakeID = generateLiquidityStakeID(\r\n            msg.sender\r\n        );\r\n\r\n        newLiquidityStake.startDay = _nextWiseDay();\r\n        newLiquidityStake.stakedAmount = _liquidityTokens;\r\n        newLiquidityStake.isActive = true;\r\n\r\n        liquidityStakes[msg.sender][liquidityStakeID] = newLiquidityStake;\r\n\r\n        _increaseLiquidityStakeCount(\r\n            msg.sender\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @notice A method for a staker to end a liquidity stake\r\n     * @param _liquidityStakeID - identification number\r\n     */\r\n    function endLiquidityStake(\r\n        bytes16 _liquidityStakeID\r\n    )\r\n        snapshotTrigger\r\n        external\r\n        returns (uint256)\r\n    {\r\n        LiquidityStake memory liquidityStake =\r\n        liquidityStakes[msg.sender][_liquidityStakeID];\r\n\r\n        require(\r\n            liquidityStake.isActive\r\n            // \u0027WISE: not an active stake\u0027\r\n        );\r\n\r\n        liquidityStake.isActive = false;\r\n        liquidityStake.closeDay = _currentWiseDay();\r\n\r\n        liquidityStake.rewardAmount = _calculateRewardAmount(\r\n            liquidityStake\r\n        );\r\n\r\n        _mint(\r\n            msg.sender,\r\n            liquidityStake.rewardAmount\r\n        );\r\n\r\n        safeTransfer(\r\n            address(UNISWAP_PAIR),\r\n            msg.sender,\r\n            liquidityStake.stakedAmount\r\n        );\r\n\r\n        liquidityStakes[msg.sender][_liquidityStakeID] = liquidityStake;\r\n\r\n        return liquidityStake.rewardAmount;\r\n    }\r\n\r\n    /**\r\n     * @notice returns full view and details of\r\n     * a liquidity stake belonging to caller\r\n     * @param _liquidityStakeID - stakeID\r\n     */\r\n    function checkLiquidityStakeByID(\r\n        address _staker,\r\n        bytes16 _liquidityStakeID\r\n    )\r\n        external\r\n        view\r\n        returns (\r\n            uint256 startDay,\r\n            uint256 stakedAmount,\r\n            uint256 rewardAmount,\r\n            uint256 closeDay,\r\n            bool isActive\r\n        )\r\n    {\r\n        LiquidityStake memory stake = liquidityStakes[_staker][_liquidityStakeID];\r\n        startDay = stake.startDay;\r\n        stakedAmount = stake.stakedAmount;\r\n        rewardAmount = _calculateRewardAmount(stake);\r\n        closeDay = stake.closeDay;\r\n        isActive = stake.isActive;\r\n    }\r\n\r\n    /**\r\n     * @notice calculates reward when closing liquidity stake\r\n     * @param _liquidityStake - stake instance\r\n     */\r\n    function _calculateRewardAmount(\r\n        LiquidityStake memory _liquidityStake\r\n    )\r\n        private\r\n        view\r\n        returns (uint256 _rewardAmount)\r\n    {\r\n        uint256 maxCalculationDay = _liquidityStake.startDay + MAX_BONUS_DAYS_A;\r\n\r\n        uint256 calculationDay =\r\n            globals.currentWiseDay \u003c maxCalculationDay ?\r\n            globals.currentWiseDay : maxCalculationDay;\r\n\r\n        for (uint256 _day = _liquidityStake.startDay; _day \u003c calculationDay; _day++) {\r\n            _rewardAmount += _liquidityStake.stakedAmount * PRECISION_RATE / lsnapshots[_day].inflationAmount;\r\n        }\r\n    }\r\n}"},"ReferralToken.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./Snapshot.sol\";\r\n\r\nabstract contract ReferralToken is Snapshot {\r\n\r\n    using SafeMath for uint256;\r\n\r\n    function _addReferrerSharesToEnd(\r\n        uint256 _finalDay,\r\n        uint256 _shares\r\n    )\r\n        internal\r\n    {\r\n        referralSharesToEnd[_finalDay] =\r\n        referralSharesToEnd[_finalDay].add(_shares);\r\n    }\r\n\r\n    function _removeReferrerSharesToEnd(\r\n        uint256 _finalDay,\r\n        uint256 _shares\r\n    )\r\n        internal\r\n    {\r\n        if (_notPast(_finalDay)) {\r\n\r\n            referralSharesToEnd[_finalDay] =\r\n            referralSharesToEnd[_finalDay] \u003e _shares ?\r\n            referralSharesToEnd[_finalDay] - _shares : 0;\r\n\r\n        } else {\r\n\r\n            uint256 _day = _previousWiseDay();\r\n            rsnapshots[_day].scheduledToEnd =\r\n            rsnapshots[_day].scheduledToEnd \u003e _shares ?\r\n            rsnapshots[_day].scheduledToEnd - _shares : 0;\r\n        }\r\n    }\r\n\r\n    function _belowThresholdLevel(\r\n        address _referrer\r\n    )\r\n        private\r\n        view\r\n        returns (bool)\r\n    {\r\n        return criticalMass[_referrer].totalAmount \u003c THRESHOLD_LIMIT;\r\n    }\r\n\r\n    function _addCriticalMass(\r\n        address _referrer,\r\n        uint256 _daiEquivalent\r\n    )\r\n        internal\r\n    {\r\n        criticalMass[_referrer].totalAmount =\r\n        criticalMass[_referrer].totalAmount.add(_daiEquivalent);\r\n        criticalMass[_referrer].activationDay = _determineActivationDay(_referrer);\r\n    }\r\n\r\n    function _removeCriticalMass(\r\n        address _referrer,\r\n        uint256 _daiEquivalent,\r\n        uint256 _startDay\r\n    )\r\n        internal\r\n    {\r\n        if (\r\n            _notFuture(_startDay) == false \u0026\u0026\r\n            _nonZeroAddress(_referrer)\r\n        ) {\r\n            criticalMass[_referrer].totalAmount =\r\n            criticalMass[_referrer].totalAmount \u003e _daiEquivalent ?\r\n            criticalMass[_referrer].totalAmount - _daiEquivalent : 0;\r\n            criticalMass[_referrer].activationDay = _determineActivationDay(_referrer);\r\n        }\r\n    }\r\n\r\n    function _determineActivationDay(\r\n        address _referrer\r\n    )\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return _belowThresholdLevel(_referrer) ? 0 : _activationDay(_referrer);\r\n    }\r\n\r\n    function _activationDay(\r\n        address _referrer\r\n    )\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return\r\n            criticalMass[_referrer].activationDay \u003e 0 ?\r\n            criticalMass[_referrer].activationDay : _currentWiseDay();\r\n    }\r\n\r\n    function _updateDaiEquivalent()\r\n        internal\r\n        returns (uint256)\r\n    {\r\n        try UNISWAP_ROUTER.getAmountsOut(\r\n            YODAS_PER_WISE, _path\r\n        ) returns (uint256[] memory results) {\r\n            latestDaiEquivalent = results[2];\r\n            return latestDaiEquivalent;\r\n        } catch Error(string memory) {\r\n            return latestDaiEquivalent;\r\n        } catch (bytes memory) {\r\n            return latestDaiEquivalent;\r\n        }\r\n    }\r\n\r\n    function referrerInterest(\r\n        bytes16 _referralID,\r\n        uint256 _scrapeDays\r\n    )\r\n        external\r\n        snapshotTrigger\r\n    {\r\n        _referrerInterest(\r\n            msg.sender,\r\n            _referralID,\r\n            _scrapeDays\r\n        );\r\n    }\r\n\r\n    function referrerInterestBulk(\r\n        bytes16[] memory _referralIDs,\r\n        uint256[] memory _scrapeDays\r\n    )\r\n        external\r\n        snapshotTrigger\r\n    {\r\n        for(uint256 i = 0; i \u003c _referralIDs.length; i++) {\r\n            _referrerInterest(\r\n                msg.sender,\r\n                _referralIDs[i],\r\n                _scrapeDays[i]\r\n            );\r\n        }\r\n    }\r\n\r\n    function _referrerInterest(\r\n        address _referrer,\r\n        bytes16 _referralID,\r\n        uint256 _processDays\r\n    )\r\n        internal\r\n    {\r\n        ReferrerLink memory link =\r\n        referrerLinks[_referrer][_referralID];\r\n\r\n        require(\r\n            link.isActive == true\r\n        );\r\n\r\n        address staker = link.staker;\r\n        bytes16 stakeID = link.stakeID;\r\n\r\n        Stake memory stake = stakes[staker][stakeID];\r\n\r\n        uint256 startDay = _determineStartDay(stake, link);\r\n        uint256 finalDay = _determineFinalDay(stake);\r\n\r\n        if (_stakeEnded(stake)) {\r\n\r\n            if (\r\n                _processDays \u003e 0 \u0026\u0026\r\n                _processDays \u003c _daysDiff(startDay, finalDay)\r\n                )\r\n            {\r\n\r\n                link.processedDays =\r\n                link.processedDays.add(_processDays);\r\n\r\n                finalDay =\r\n                startDay.add(_processDays);\r\n\r\n            } else {\r\n\r\n                link.isActive = false;\r\n            }\r\n\r\n        } else {\r\n\r\n            _processDays = _daysDiff(startDay, _currentWiseDay());\r\n\r\n            link.processedDays =\r\n            link.processedDays.add(_processDays);\r\n\r\n            finalDay =\r\n            startDay.add(_processDays);\r\n        }\r\n\r\n        uint256 referralInterest = _checkReferralInterest(\r\n            stake,\r\n            startDay,\r\n            finalDay\r\n        );\r\n\r\n        link.rewardAmount =\r\n        link.rewardAmount.add(referralInterest);\r\n\r\n        referrerLinks[_referrer][_referralID] = link;\r\n\r\n        _mint(\r\n            _referrer,\r\n            referralInterest\r\n        );\r\n\r\n        emit ReferralCollected(\r\n            staker,\r\n            stakeID,\r\n            _referrer,\r\n            _referralID,\r\n            referralInterest\r\n        );\r\n    }\r\n\r\n    function checkReferralsByID(\r\n        address _referrer,\r\n        bytes16 _referralID\r\n    )\r\n        external\r\n        view\r\n        returns (\r\n            address staker,\r\n            bytes16 stakeID,\r\n            uint256 referrerShares,\r\n            uint256 referralInterest,\r\n            bool isActiveReferral,\r\n            bool isActiveStake,\r\n            bool isMatureStake,\r\n            bool isEndedStake\r\n        )\r\n    {\r\n        ReferrerLink memory link = referrerLinks[_referrer][_referralID];\r\n\r\n        staker = link.staker;\r\n        stakeID = link.stakeID;\r\n        isActiveReferral = link.isActive;\r\n\r\n        Stake memory stake = stakes[staker][stakeID];\r\n        referrerShares = stake.referrerShares;\r\n\r\n        referralInterest = _checkReferralInterest(\r\n            stake,\r\n            _determineStartDay(stake, link),\r\n            _determineFinalDay(stake)\r\n        );\r\n\r\n        isActiveStake = stake.isActive;\r\n        isEndedStake = _stakeEnded(stake);\r\n        isMatureStake = _isMatureStake(stake);\r\n    }\r\n\r\n    function _checkReferralInterest(Stake memory _stake, uint256 _startDay, uint256 _finalDay) internal view returns (uint256 _referralInterest) {\r\n        return _notCriticalMassReferrer(_stake.referrer) ? 0 : _getReferralInterest(_stake, _startDay, _finalDay);\r\n    }\r\n\r\n    function _getReferralInterest(Stake memory _stake, uint256 _startDay, uint256 _finalDay) private view returns (uint256 _referralInterest) {\r\n        for (uint256 _day = _startDay; _day \u003c _finalDay; _day++) {\r\n            _referralInterest += _stake.stakesShares * PRECISION_RATE / rsnapshots[_day].inflationAmount;\r\n        }\r\n    }\r\n\r\n    function _determineStartDay(Stake memory _stake, ReferrerLink memory _link) internal view returns (uint256) {\r\n        return (\r\n            criticalMass[_stake.referrer].activationDay \u003e _stake.startDay ?\r\n            criticalMass[_stake.referrer].activationDay : _stake.startDay\r\n        ).add(_link.processedDays);\r\n    }\r\n\r\n    function _determineFinalDay(\r\n        Stake memory _stake\r\n    )\r\n        internal\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return\r\n            _stake.closeDay \u003e 0 ?\r\n            _stake.closeDay : _calculationDay(_stake);\r\n    }\r\n}"},"SafeMath.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nlibrary SafeMath {\r\n\r\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        uint256 c = a + b;\r\n        require(c \u003e= a);\r\n        return c;\r\n    }\r\n\r\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        require(b \u003c= a);\r\n        uint256 c = a - b;\r\n        return c;\r\n    }\r\n\r\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\r\n\r\n        if (a == 0) {\r\n            return 0;\r\n        }\r\n\r\n        uint256 c = a * b;\r\n        require(c / a == b);\r\n        return c;\r\n    }\r\n\r\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        require(b \u003e 0);\r\n        uint256 c = a / b;\r\n        return c;\r\n    }\r\n\r\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        require(b != 0);\r\n        return a % b;\r\n    }\r\n}\r\n"},"Snapshot.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./Helper.sol\";\r\n\r\nabstract contract Snapshot is Helper {\r\n\r\n    using SafeMath for uint;\r\n\r\n    // regular shares\r\n    struct SnapShot {\r\n        uint256 totalShares;\r\n        uint256 inflationAmount;\r\n        uint256 scheduledToEnd;\r\n    }\r\n\r\n    // referral shares\r\n    struct rSnapShot {\r\n        uint256 totalShares;\r\n        uint256 inflationAmount;\r\n        uint256 scheduledToEnd;\r\n    }\r\n\r\n    // liquidity shares\r\n    struct lSnapShot {\r\n        uint256 totalShares;\r\n        uint256 inflationAmount;\r\n    }\r\n\r\n    mapping(uint256 =\u003e SnapShot) public snapshots;\r\n    mapping(uint256 =\u003e rSnapShot) public rsnapshots;\r\n    mapping(uint256 =\u003e lSnapShot) public lsnapshots;\r\n\r\n    modifier snapshotTrigger() {\r\n        _dailySnapshotPoint(_currentWiseDay());\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @notice allows to activate/deactivate\r\n     * liquidity guard manually based on the\r\n     * liquidity in UNISWAP pair contract\r\n     */\r\n    function liquidityGuardTrigger() public {\r\n\r\n        (\r\n            uint112 reserveA,\r\n            uint112 reserveB,\r\n            uint32 blockTimestampLast\r\n        ) = UNISWAP_PAIR.getReserves();\r\n\r\n        emit UniswapReserves(\r\n            reserveA,\r\n            reserveB,\r\n            blockTimestampLast\r\n        );\r\n\r\n        uint256 onUniswap = UNISWAP_PAIR.token1() == WETH\r\n            ? reserveA\r\n            : reserveB;\r\n\r\n        uint256 ratio = totalSupply() == 0\r\n            ? 0\r\n            : onUniswap\r\n                .mul(200)\r\n                .div(totalSupply());\r\n\r\n        if (ratio \u003c 40 \u0026\u0026 isLiquidityGuardActive == false) enableLiquidityGuard();\r\n        if (ratio \u003e 60 \u0026\u0026 isLiquidityGuardActive == true) disableLiquidityGuard();\r\n\r\n        emit LiquidityGuardStatus(\r\n            isLiquidityGuardActive\r\n        );\r\n    }\r\n\r\n    function enableLiquidityGuard() private {\r\n        isLiquidityGuardActive = true;\r\n    }\r\n\r\n    function disableLiquidityGuard() private {\r\n        isLiquidityGuardActive = false;\r\n    }\r\n\r\n    /**\r\n     * @notice allows volunteer to offload snapshots\r\n     * to save on gas during next start/end stake\r\n     */\r\n    function manualDailySnapshot()\r\n        external\r\n    {\r\n        _dailySnapshotPoint(_currentWiseDay());\r\n    }\r\n\r\n    /**\r\n     * @notice allows volunteer to offload snapshots\r\n     * to save on gas during next start/end stake\r\n     * in case manualDailySnapshot reach block limit\r\n     */\r\n    function manualDailySnapshotPoint(\r\n        uint64 _updateDay\r\n    )\r\n        external\r\n    {\r\n        require(\r\n            _updateDay \u003e 0 \u0026\u0026\r\n            _updateDay \u003c _currentWiseDay()\r\n            // \u0027WISE: snapshot day does not exist yet\u0027\r\n        );\r\n\r\n        require(\r\n            _updateDay \u003e globals.currentWiseDay\r\n            // \u0027WISE: snapshot already taken for that day\u0027\r\n        );\r\n\r\n        _dailySnapshotPoint(_updateDay);\r\n    }\r\n\r\n    /**\r\n     * @notice internal function that offloads\r\n     * global values to daily snapshots\r\n     * updates globals.currentWiseDay\r\n     */\r\n    function _dailySnapshotPoint(\r\n        uint64 _updateDay\r\n    )\r\n        private\r\n    {\r\n        liquidityGuardTrigger();\r\n\r\n        uint256 scheduledToEndToday;\r\n        uint256 totalStakedToday = globals.totalStaked;\r\n\r\n        for (uint256 _day = globals.currentWiseDay; _day \u003c _updateDay; _day++) {\r\n\r\n            // ------------------------------------\r\n            // prepare snapshot for regular shares\r\n            // reusing scheduledToEndToday variable\r\n\r\n            scheduledToEndToday = scheduledToEnd[_day] + snapshots[_day - 1].scheduledToEnd;\r\n\r\n            SnapShot memory snapshot = snapshots[_day];\r\n            snapshot.scheduledToEnd = scheduledToEndToday;\r\n\r\n            snapshot.totalShares =\r\n                globals.totalShares \u003e scheduledToEndToday ?\r\n                globals.totalShares - scheduledToEndToday : 0;\r\n\r\n            snapshot.inflationAmount =  snapshot.totalShares\r\n                .mul(PRECISION_RATE)\r\n                .div(\r\n                    _inflationAmount(\r\n                        totalStakedToday,\r\n                        totalSupply(),\r\n                        totalPenalties[_day],\r\n                        LIQUIDITY_GUARD.getInflation(\r\n                            INFLATION_RATE\r\n                        )\r\n                    )\r\n                );\r\n\r\n            // store regular snapshot\r\n            snapshots[_day] = snapshot;\r\n\r\n\r\n            // ------------------------------------\r\n            // prepare snapshot for referrer shares\r\n            // reusing scheduledToEndToday variable\r\n\r\n            scheduledToEndToday = referralSharesToEnd[_day] + rsnapshots[_day - 1].scheduledToEnd;\r\n\r\n            rSnapShot memory rsnapshot = rsnapshots[_day];\r\n            rsnapshot.scheduledToEnd = scheduledToEndToday;\r\n\r\n            rsnapshot.totalShares =\r\n                globals.referralShares \u003e scheduledToEndToday ?\r\n                globals.referralShares - scheduledToEndToday : 0;\r\n\r\n            rsnapshot.inflationAmount = rsnapshot.totalShares\r\n                .mul(PRECISION_RATE)\r\n                .div(\r\n                    _referralInflation(\r\n                        totalStakedToday,\r\n                        totalSupply()\r\n                    )\r\n                );\r\n\r\n            // store referral snapshot\r\n            rsnapshots[_day] = rsnapshot;\r\n\r\n\r\n            // ------------------------------------\r\n            // prepare snapshot for liquidity shares\r\n            // reusing scheduledToEndToday variable\r\n\r\n            lSnapShot memory lsnapshot = lsnapshots[_day];\r\n\r\n            lsnapshot.totalShares = UNISWAP_PAIR.balanceOf(\r\n                address(this)\r\n            );\r\n\r\n            lsnapshot.inflationAmount = lsnapshot.totalShares\r\n                .mul(PRECISION_RATE).div(\r\n                    _liquidityInflation(\r\n                        totalStakedToday,\r\n                        totalSupply(),\r\n                        LIQUIDITY_GUARD.getInflation(\r\n                            LIQUIDITY_RATE\r\n                        )\r\n                    )\r\n                );\r\n\r\n            // store liquidity snapshot\r\n            lsnapshots[_day] = lsnapshot;\r\n\r\n            adjustLiquidityRates();\r\n            globals.currentWiseDay++;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @notice moves inflation up and down by 0.006%\r\n     * from regular shares to liquidity shares\r\n     * if the liquidityGuard is active (visa-versa)\r\n     */\r\n    function adjustLiquidityRates() private {\r\n        if (\r\n            isLiquidityGuardActive ==  true \u0026\u0026\r\n            LIQUIDITY_RATE \u003c INFLATION_RATE_MAX\r\n            )\r\n        {\r\n            LIQUIDITY_RATE = LIQUIDITY_RATE + 6;\r\n            INFLATION_RATE = INFLATION_RATE - 6;\r\n            return;\r\n        }\r\n        if (\r\n            isLiquidityGuardActive == false \u0026\u0026\r\n            INFLATION_RATE \u003c INFLATION_RATE_MAX\r\n            )\r\n        {\r\n            INFLATION_RATE = INFLATION_RATE + 6;\r\n            LIQUIDITY_RATE = LIQUIDITY_RATE - 6;\r\n            return;\r\n        }\r\n    }\r\n\r\n    function _inflationAmount(uint256 _totalStaked, uint256 _totalSupply, uint256 _totalPenalties, uint256 _INFLATION_RATE) private pure returns (uint256) {\r\n        return (_totalStaked + _totalSupply) * 10000 / _INFLATION_RATE + _totalPenalties;\r\n    }\r\n\r\n    function _referralInflation(uint256 _totalStaked, uint256 _totalSupply) private pure returns (uint256) {\r\n        return (_totalStaked + _totalSupply) * 10000 / REFERRALS_RATE;\r\n    }\r\n\r\n    function _liquidityInflation(uint256 _totalStaked, uint256 _totalSupply, uint256 _LIQUIDITY_RATE) private pure returns (uint256) {\r\n        return (_totalStaked + _totalSupply) * 10000 / _LIQUIDITY_RATE;\r\n    }\r\n}"},"StakingToken.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./ReferralToken.sol\";\r\n\r\nabstract contract StakingToken is ReferralToken {\r\n\r\n    using SafeMath for uint256;\r\n\r\n    /**\r\n     * @notice A method for a staker to create a stake\r\n     * @param _stakedAmount amount of WISE staked.\r\n     * @param _lockDays amount of days it is locked for.\r\n     */\r\n    function createStake(\r\n        uint256 _stakedAmount,\r\n        uint64 _lockDays,\r\n        address _referrer\r\n    )\r\n        snapshotTrigger\r\n        public\r\n        returns (bytes16, uint256, bytes16 referralID)\r\n    {\r\n        require(\r\n            msg.sender != _referrer \u0026\u0026\r\n            notContract(_referrer)\r\n            // \u0027WISE: invalid referrer\u0027\r\n        );\r\n\r\n        require(\r\n            _lockDays \u003e= MIN_LOCK_DAYS \u0026\u0026\r\n            _lockDays \u003c= MAX_LOCK_DAYS\r\n            // \u0027WISE: stake is not in range\u0027\r\n        );\r\n\r\n        require(\r\n            _stakedAmount \u003e= MIN_STAKE_AMOUNT\r\n            // \u0027WISE: stake is not large enough\u0027\r\n        );\r\n\r\n        (\r\n            Stake memory newStake,\r\n            bytes16 stakeID,\r\n            uint256 _startDay\r\n        ) =\r\n\r\n        _createStake(msg.sender, _stakedAmount, _lockDays, _referrer);\r\n\r\n        if (newStake.referrerShares \u003e 0) {\r\n\r\n            ReferrerLink memory referrerLink;\r\n\r\n            referrerLink.staker = msg.sender;\r\n            referrerLink.stakeID = stakeID;\r\n            referrerLink.isActive = true;\r\n\r\n            referralID = generateReferralID(_referrer);\r\n            referrerLinks[_referrer][referralID] = referrerLink;\r\n\r\n            _increaseReferralCount(\r\n                _referrer\r\n            );\r\n\r\n            _addReferrerSharesToEnd(\r\n                newStake.finalDay,\r\n                newStake.referrerShares\r\n            );\r\n        }\r\n\r\n        stakes[msg.sender][stakeID] = newStake;\r\n\r\n        _increaseStakeCount(\r\n            msg.sender\r\n        );\r\n\r\n        _increaseGlobals(\r\n            newStake.stakedAmount,\r\n            newStake.stakesShares,\r\n            newStake.referrerShares\r\n        );\r\n\r\n        _addScheduledShares(\r\n            newStake.finalDay,\r\n            newStake.stakesShares\r\n        );\r\n\r\n        emit StakeStart(\r\n            stakeID,\r\n            msg.sender,\r\n            _referrer,\r\n            newStake.stakedAmount,\r\n            newStake.stakesShares,\r\n            newStake.referrerShares,\r\n            newStake.startDay,\r\n            newStake.lockDays,\r\n            newStake.daiEquivalent\r\n        );\r\n\r\n        return (stakeID, _startDay, referralID);\r\n    }\r\n\r\n    /**\r\n    * @notice A method for a staker to start a stake\r\n    * @param _staker ...\r\n    * @param _stakedAmount ...\r\n    * @param _lockDays ...\r\n    */\r\n    function _createStake(\r\n        address _staker,\r\n        uint256 _stakedAmount,\r\n        uint64 _lockDays,\r\n        address _referrer\r\n    )\r\n        private\r\n        returns (\r\n            Stake memory _newStake,\r\n            bytes16 _stakeID,\r\n            uint64 _startDay\r\n        )\r\n    {\r\n        _burn(\r\n            _staker,\r\n            _stakedAmount\r\n        );\r\n\r\n        _startDay = _nextWiseDay();\r\n        _stakeID = generateStakeID(_staker);\r\n\r\n        _newStake.lockDays = _lockDays;\r\n        _newStake.startDay = _startDay;\r\n        _newStake.finalDay = _startDay + _lockDays;\r\n        _newStake.isActive = true;\r\n\r\n        _newStake.stakedAmount = _stakedAmount;\r\n        _newStake.stakesShares = _stakesShares(\r\n            _stakedAmount,\r\n            _lockDays,\r\n            _referrer,\r\n            globals.sharePrice\r\n        );\r\n\r\n        _updateDaiEquivalent();\r\n\r\n        _newStake.daiEquivalent = latestDaiEquivalent\r\n            .mul(_newStake.stakedAmount)\r\n            .div(YODAS_PER_WISE);\r\n\r\n        if (_nonZeroAddress(_referrer)) {\r\n\r\n            _newStake.referrer = _referrer;\r\n\r\n            _addCriticalMass(\r\n                _newStake.referrer,\r\n                _newStake.daiEquivalent\r\n            );\r\n\r\n            _newStake.referrerShares = _referrerShares(\r\n                _stakedAmount,\r\n                _lockDays,\r\n                _referrer\r\n            );\r\n        }\r\n    }\r\n\r\n    /**\r\n    * @notice A method for a staker to remove a stake\r\n    * belonging to his address by providing ID of a stake.\r\n    * @param _stakeID unique bytes sequence reference to the stake\r\n    */\r\n    function endStake(\r\n        bytes16 _stakeID\r\n    )\r\n        snapshotTrigger\r\n        external\r\n        returns (uint256)\r\n    {\r\n        (\r\n            Stake memory endedStake,\r\n            uint256 penaltyAmount\r\n        ) =\r\n\r\n        _endStake(\r\n            msg.sender,\r\n            _stakeID\r\n        );\r\n\r\n        _decreaseGlobals(\r\n            endedStake.stakedAmount,\r\n            endedStake.stakesShares,\r\n            endedStake.referrerShares\r\n        );\r\n\r\n        _removeScheduledShares(\r\n            endedStake.finalDay,\r\n            endedStake.stakesShares\r\n        );\r\n\r\n        _removeReferrerSharesToEnd(\r\n            endedStake.finalDay,\r\n            endedStake.referrerShares\r\n        );\r\n\r\n        _removeCriticalMass(\r\n            endedStake.referrer,\r\n            endedStake.daiEquivalent,\r\n            endedStake.startDay\r\n        );\r\n\r\n        _storePenalty(\r\n            endedStake.closeDay,\r\n            penaltyAmount\r\n        );\r\n\r\n        _sharePriceUpdate(\r\n            endedStake.stakedAmount \u003e penaltyAmount ?\r\n            endedStake.stakedAmount - penaltyAmount : 0,\r\n            endedStake.rewardAmount,\r\n            endedStake.referrer,\r\n            endedStake.lockDays,\r\n            endedStake.stakesShares\r\n        );\r\n\r\n        emit StakeEnd(\r\n            _stakeID,\r\n            msg.sender,\r\n            endedStake.referrer,\r\n            endedStake.stakedAmount,\r\n            endedStake.stakesShares,\r\n            endedStake.referrerShares,\r\n            endedStake.rewardAmount,\r\n            endedStake.closeDay,\r\n            penaltyAmount\r\n        );\r\n\r\n        return endedStake.rewardAmount;\r\n    }\r\n\r\n    function _endStake(\r\n        address _staker,\r\n        bytes16 _stakeID\r\n    )\r\n        private\r\n        returns (\r\n            Stake storage _stake,\r\n            uint256 _penalty\r\n        )\r\n    {\r\n        require(\r\n            stakes[_staker][_stakeID].isActive\r\n            // \u0027WISE: not an active stake\u0027\r\n        );\r\n\r\n        _stake = stakes[_staker][_stakeID];\r\n        _stake.closeDay = _currentWiseDay();\r\n        _stake.rewardAmount = _calculateRewardAmount(_stake);\r\n        _penalty = _calculatePenaltyAmount(_stake);\r\n\r\n        _stake.isActive = false;\r\n\r\n        _mint(\r\n            _staker,\r\n            _stake.stakedAmount \u003e _penalty ?\r\n            _stake.stakedAmount - _penalty : 0\r\n        );\r\n\r\n        _mint(\r\n            _staker,\r\n            _stake.rewardAmount\r\n        );\r\n    }\r\n\r\n    /**\r\n    * @notice alloes to scrape interest from active stake\r\n    * @param _stakeID unique bytes sequence reference to the stake\r\n    * @param _scrapeDays amount of days to proccess, 0 = all\r\n    */\r\n    function scrapeInterest(\r\n        bytes16 _stakeID,\r\n        uint64 _scrapeDays\r\n    )\r\n        external\r\n        snapshotTrigger\r\n        returns (\r\n            uint256 scrapeDay,\r\n            uint256 scrapeAmount,\r\n            uint256 remainingDays,\r\n            uint256 stakersPenalty,\r\n            uint256 referrerPenalty\r\n        )\r\n    {\r\n        require(\r\n            stakes[msg.sender][_stakeID].isActive\r\n            // \u0027WISE: not an active stake\u0027\r\n        );\r\n\r\n        Stake memory stake = stakes[msg.sender][_stakeID];\r\n\r\n        scrapeDay = _scrapeDays \u003e 0\r\n            ? _startingDay(stake).add(_scrapeDays)\r\n            : _calculationDay(stake);\r\n\r\n        scrapeDay = scrapeDay \u003e stake.finalDay\r\n            ? _calculationDay(stake)\r\n            : scrapeDay;\r\n\r\n        scrapeAmount = _loopRewardAmount(\r\n            stake.stakesShares,\r\n            _startingDay(stake),\r\n            scrapeDay\r\n        );\r\n\r\n        if (_isMatureStake(stake) == false) {\r\n\r\n            remainingDays = _daysLeft(stake);\r\n\r\n            stakersPenalty = _stakesShares(\r\n                scrapeAmount,\r\n                remainingDays,\r\n                msg.sender,\r\n                globals.sharePrice\r\n            );\r\n\r\n            stake.stakesShares =\r\n            stake.stakesShares.sub(stakersPenalty);\r\n\r\n            _removeScheduledShares(\r\n                stake.finalDay,\r\n                stakersPenalty\r\n            );\r\n\r\n            if (stake.referrerShares \u003e 0) {\r\n\r\n                referrerPenalty = _stakesShares(\r\n                    scrapeAmount,\r\n                    remainingDays,\r\n                    address(0x0),\r\n                    globals.sharePrice\r\n                );\r\n\r\n                stake.referrerShares =\r\n                stake.referrerShares.sub(referrerPenalty);\r\n\r\n                _removeReferrerSharesToEnd(\r\n                    stake.finalDay,\r\n                    referrerPenalty\r\n                );\r\n            }\r\n\r\n            _decreaseGlobals(\r\n                0,\r\n                stakersPenalty,\r\n                referrerPenalty\r\n            );\r\n        }\r\n\r\n        _sharePriceUpdate(\r\n            stake.stakedAmount,\r\n            scrapeAmount,\r\n            stake.referrer,\r\n            stake.lockDays,\r\n            stake.stakesShares\r\n        );\r\n\r\n        stake.scrapeDay = scrapeDay;\r\n        stakes[msg.sender][_stakeID] = stake;\r\n\r\n        _mint(\r\n            msg.sender,\r\n            scrapeAmount\r\n        );\r\n\r\n        emit InterestScraped(\r\n            _stakeID,\r\n            msg.sender,\r\n            scrapeAmount,\r\n            scrapeDay,\r\n            stakersPenalty,\r\n            referrerPenalty,\r\n            _currentWiseDay()\r\n        );\r\n    }\r\n\r\n    function _addScheduledShares(\r\n        uint256 _finalDay,\r\n        uint256 _shares\r\n    )\r\n        internal\r\n    {\r\n        scheduledToEnd[_finalDay] =\r\n        scheduledToEnd[_finalDay].add(_shares);\r\n    }\r\n\r\n    function _removeScheduledShares(\r\n        uint256 _finalDay,\r\n        uint256 _shares\r\n    )\r\n        internal\r\n    {\r\n        if (_notPast(_finalDay)) {\r\n\r\n            scheduledToEnd[_finalDay] =\r\n            scheduledToEnd[_finalDay] \u003e _shares ?\r\n            scheduledToEnd[_finalDay] - _shares : 0;\r\n\r\n        } else {\r\n\r\n            uint256 _day = _previousWiseDay();\r\n            snapshots[_day].scheduledToEnd =\r\n            snapshots[_day].scheduledToEnd \u003e _shares ?\r\n            snapshots[_day].scheduledToEnd - _shares : 0;\r\n        }\r\n    }\r\n\r\n    function _sharePriceUpdate(\r\n        uint256 _stakedAmount,\r\n        uint256 _rewardAmount,\r\n        address _referrer,\r\n        uint256 _lockDays,\r\n        uint256 _stakeShares\r\n    )\r\n        private\r\n    {\r\n        if (_stakeShares \u003e 0 \u0026\u0026 _currentWiseDay() \u003e FORMULA_DAY) {\r\n\r\n            uint256 newSharePrice = _getNewSharePrice(\r\n                _stakedAmount,\r\n                _rewardAmount,\r\n                _stakeShares,\r\n                _lockDays,\r\n                _referrer\r\n            );\r\n\r\n            if (newSharePrice \u003e globals.sharePrice) {\r\n                globals.sharePrice =\r\n                    newSharePrice \u003c globals.sharePrice.mul(110).div(100) ?\r\n                    newSharePrice : globals.sharePrice.mul(110).div(100);\r\n            }\r\n\r\n            return;\r\n        }\r\n\r\n        if (_currentWiseDay() == FORMULA_DAY) {\r\n            globals.sharePrice = 110E15;\r\n        }\r\n    }\r\n\r\n    function _getNewSharePrice(\r\n        uint256 _stakedAmount,\r\n        uint256 _rewardAmount,\r\n        uint256 _stakeShares,\r\n        uint256 _lockDays,\r\n        address _referrer\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n\r\n        uint256 _bonusAmount = _getBonus(\r\n            _lockDays, _nonZeroAddress(_referrer) ? 11E9 : 10E9\r\n        );\r\n\r\n        return\r\n            _stakedAmount\r\n                .add(_rewardAmount)\r\n                .mul(_bonusAmount)\r\n                .mul(1E8)\r\n                .div(_stakeShares);\r\n    }\r\n\r\n    function checkMatureStake(\r\n        address _staker,\r\n        bytes16 _stakeID\r\n    )\r\n        external\r\n        view\r\n        returns (bool isMature)\r\n    {\r\n        Stake memory stake = stakes[_staker][_stakeID];\r\n        isMature = _isMatureStake(stake);\r\n    }\r\n\r\n    function checkStakeByID(\r\n        address _staker,\r\n        bytes16 _stakeID\r\n    )\r\n        external\r\n        view\r\n        returns (\r\n            uint256 startDay,\r\n            uint256 lockDays,\r\n            uint256 finalDay,\r\n            uint256 closeDay,\r\n            uint256 scrapeDay,\r\n            uint256 stakedAmount,\r\n            uint256 stakesShares,\r\n            uint256 rewardAmount,\r\n            uint256 penaltyAmount,\r\n            bool isActive,\r\n            bool isMature\r\n        )\r\n    {\r\n        Stake memory stake = stakes[_staker][_stakeID];\r\n        startDay = stake.startDay;\r\n        lockDays = stake.lockDays;\r\n        finalDay = stake.finalDay;\r\n        closeDay = stake.closeDay;\r\n        scrapeDay = stake.scrapeDay;\r\n        stakedAmount = stake.stakedAmount;\r\n        stakesShares = stake.stakesShares;\r\n        rewardAmount = _checkRewardAmount(stake);\r\n        penaltyAmount = _calculatePenaltyAmount(stake);\r\n        isActive = stake.isActive;\r\n        isMature = _isMatureStake(stake);\r\n    }\r\n\r\n    function _stakesShares(\r\n        uint256 _stakedAmount,\r\n        uint256 _lockDays,\r\n        address _referrer,\r\n        uint256 _sharePrice\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n        return _nonZeroAddress(_referrer)\r\n            ? _sharesAmount(_stakedAmount, _lockDays, _sharePrice, 11E9)\r\n            : _sharesAmount(_stakedAmount, _lockDays, _sharePrice, 10E9);\r\n    }\r\n\r\n    function _sharesAmount(\r\n        uint256 _stakedAmount,\r\n        uint256 _lockDays,\r\n        uint256 _sharePrice,\r\n        uint256 _extraBonus\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n        return _baseAmount(_stakedAmount, _sharePrice)\r\n            .mul(_getBonus(_lockDays, _extraBonus))\r\n            .div(10E9);\r\n    }\r\n\r\n    function _getBonus(\r\n        uint256 _lockDays,\r\n        uint256 _extraBonus\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n        return\r\n            _regularBonus(_lockDays, DAILY_BONUS_A, MAX_BONUS_DAYS_A) +\r\n            _regularBonus(\r\n                _lockDays \u003e MAX_BONUS_DAYS_A ?\r\n                _lockDays - MAX_BONUS_DAYS_A : 0, DAILY_BONUS_B, MAX_BONUS_DAYS_B\r\n            ) + _extraBonus;\r\n    }\r\n\r\n    function _regularBonus(\r\n        uint256 _lockDays,\r\n        uint256 _daily,\r\n        uint256 _maxDays\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n        return (\r\n            _lockDays \u003e _maxDays\r\n                ? _maxDays.mul(_daily)\r\n                : _lockDays.mul(_daily)\r\n            ).div(10E9);\r\n    }\r\n\r\n    function _baseAmount(\r\n        uint256 _stakedAmount,\r\n        uint256 _sharePrice\r\n    )\r\n        private\r\n        pure\r\n        returns (uint256)\r\n    {\r\n        return\r\n            _stakedAmount\r\n                .mul(PRECISION_RATE)\r\n                .div(_sharePrice);\r\n    }\r\n\r\n    function _referrerShares(\r\n        uint256 _stakedAmount,\r\n        uint256 _lockDays,\r\n        address _referrer\r\n    )\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return\r\n            _notCriticalMassReferrer(_referrer) ||\r\n            _lockDays \u003c MIN_REFERRAL_DAYS\r\n                ? 0\r\n                : _sharesAmount(\r\n                    _stakedAmount,\r\n                    _lockDays,\r\n                    globals.sharePrice,\r\n                    10E9\r\n                );\r\n    }\r\n\r\n    function _checkRewardAmount(Stake memory _stake) private view returns (uint256) {\r\n        return _stake.isActive ? _detectReward(_stake) : _stake.rewardAmount;\r\n    }\r\n\r\n    function _detectReward(Stake memory _stake) private view returns (uint256) {\r\n        return _stakeNotStarted(_stake) ? 0 : _calculateRewardAmount(_stake);\r\n    }\r\n\r\n    function _storePenalty(\r\n        uint64 _storeDay,\r\n        uint256 _penalty\r\n    )\r\n        private\r\n    {\r\n        if (_penalty \u003e 0) {\r\n            totalPenalties[_storeDay] =\r\n            totalPenalties[_storeDay].add(_penalty);\r\n        }\r\n    }\r\n\r\n    function _calculatePenaltyAmount(\r\n        Stake memory _stake\r\n    )\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return _stakeNotStarted(_stake) || _isMatureStake(_stake) ? 0 : _getPenalties(_stake);\r\n    }\r\n\r\n    function _getPenalties(Stake memory _stake)\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return _stake.stakedAmount * (100 + (800 * (_daysLeft(_stake) - 1) / (_getLockDays(_stake)))) / 1000;\r\n    }\r\n\r\n    function _calculateRewardAmount(\r\n        Stake memory _stake\r\n    )\r\n        private\r\n        view\r\n        returns (uint256)\r\n    {\r\n        return _loopRewardAmount(\r\n            _stake.stakesShares,\r\n            _startingDay(_stake), \r\n            _calculationDay(_stake)\r\n        );\r\n    }\r\n\r\n    function _loopRewardAmount(\r\n        uint256 _stakeShares,\r\n        uint256 _startDay,\r\n        uint256 _finalDay\r\n    )\r\n        private\r\n        view\r\n        returns (uint256 _rewardAmount)\r\n    {\r\n        for (uint256 _day = _startDay; _day \u003c _finalDay; _day++) {\r\n            _rewardAmount += _stakeShares * PRECISION_RATE / snapshots[_day].inflationAmount;\r\n        }\r\n    }\r\n}"},"Timing.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./Declaration.sol\";\r\n\r\nabstract contract Timing is Declaration {\r\n\r\n    function currentWiseDay() public view returns (uint64) {\r\n        return _getNow() \u003e= LAUNCH_TIME ? _currentWiseDay() : 0;\r\n    }\r\n\r\n    function _currentWiseDay() internal view returns (uint64) {\r\n        return _wiseDayFromStamp(_getNow());\r\n    }\r\n\r\n    function _nextWiseDay() internal view returns (uint64) {\r\n        return _currentWiseDay() + 1;\r\n    }\r\n\r\n    function _previousWiseDay() internal view returns (uint64) {\r\n        return _currentWiseDay() - 1;\r\n    }\r\n\r\n    function _wiseDayFromStamp(uint256 _timestamp) internal view returns (uint64) {\r\n        return uint64((_timestamp - LAUNCH_TIME) / SECONDS_IN_DAY);\r\n    }\r\n\r\n    function _getNow() internal view returns (uint256) {\r\n        return block.timestamp;\r\n    }\r\n}"},"WiseToken.sol":{"content":"// SPDX-License-Identifier: --🦉--\r\n\r\npragma solidity =0.7.5;\r\n\r\nimport \"./LiquidityToken.sol\";\r\n\r\ncontract WiseToken is LiquidityToken {\r\n\r\n    address public LIQUIDITY_TRANSFORMER;\r\n    address public transformerGateKeeper;\r\n    address payable public savingAddress;\r\n\r\n    constructor() ERC20(\"Wise Token\", \"WISE\") {\r\n        transformerGateKeeper = msg.sender;\r\n        savingAddress = msg.sender;\r\n    }\r\n\r\n    /**\r\n     * @notice donations are welcomed\r\n     * @dev goes to developers address\r\n     */\r\n    receive() external payable {\r\n        savingAddress.transfer(msg.value);\r\n    }\r\n\r\n    /**\r\n     * @notice ability to define liquidity transformer contract\r\n     * @dev this method renounce transformerGateKeeper access\r\n     * @param _immutableTransformer contract address\r\n     */\r\n    function setLiquidityTransfomer(\r\n        address _immutableTransformer\r\n    )\r\n        external\r\n    {\r\n        require(\r\n            transformerGateKeeper == msg.sender\r\n            // \u0027WISE: transformer defined\u0027\r\n        );\r\n        LIQUIDITY_TRANSFORMER = _immutableTransformer;\r\n        transformerGateKeeper = address(0x0);\r\n    }\r\n\r\n    /**\r\n     * @notice allows liquidityTransformer to mint supply\r\n     * @dev executed from liquidityTransformer upon UNISWAP transfer\r\n     * and during reservation payout to contributors and referrers\r\n     * @param _investorAddress address for minting WISE tokens\r\n     * @param _amount of tokens to mint for _investorAddress\r\n     */\r\n    function mintSupply(\r\n        address _investorAddress,\r\n        uint256 _amount\r\n    )\r\n        external\r\n    {\r\n        require(\r\n            msg.sender == LIQUIDITY_TRANSFORMER\r\n            // \u0027WISE: wrong transformer\u0027\r\n        );\r\n\r\n        _mint(\r\n            _investorAddress,\r\n            _amount\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @notice allows to grant permission to CM referrer status\r\n     * @dev called from liquidityTransformer if user referred 50 ETH\r\n     * @param _referrer - address that becomes a CM reffer\r\n     */\r\n    function giveStatus(\r\n        address _referrer\r\n    )\r\n        external\r\n    {\r\n        require(\r\n            msg.sender == LIQUIDITY_TRANSFORMER\r\n            // \u0027WISE: wrong transformer\u0027\r\n        );\r\n        criticalMass[_referrer].totalAmount = THRESHOLD_LIMIT;\r\n        criticalMass[_referrer].activationDay = _nextWiseDay();\r\n    }\r\n\r\n    /**\r\n     * @notice allows to create stake directly with ETH\r\n     * if you don\u0027t have WISE tokens method will convert\r\n     * and use amount returned from UNISWAP to open a stake\r\n     * @param _lockDays amount of days it is locked for.\r\n     * @param _referrer referrer address for +10% bonus\r\n     */\r\n    function createStakeWithETH(\r\n        uint64 _lockDays,\r\n        address _referrer\r\n    )\r\n        external\r\n        payable\r\n        returns (bytes16, uint256, bytes16 referralID)\r\n    {\r\n        address[] memory path = new address[](2);\r\n            path[0] = WETH;\r\n            path[1] = address(this);\r\n\r\n        uint256[] memory amounts =\r\n        UNISWAP_ROUTER.swapExactETHForTokens{value: msg.value}(\r\n            1,\r\n            path,\r\n            msg.sender,\r\n            block.timestamp + 2 hours\r\n        );\r\n\r\n        return createStake(\r\n            amounts[1],\r\n            _lockDays,\r\n            _referrer\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @notice allows to create stake with another token\r\n     * if you don\u0027t have WISE tokens method will convert\r\n     * and use amount returned from UNISWAP to open a stake\r\n     * @dev the token must have WETH pair on UNISWAP\r\n     * @param _tokenAddress any ERC20 token address\r\n     * @param _tokenAmount amount to be converted to WISE\r\n     * @param _lockDays amount of days it is locked for.\r\n     * @param _referrer referrer address for +10% bonus\r\n     */\r\n    function createStakeWithToken(\r\n        address _tokenAddress,\r\n        uint256 _tokenAmount,\r\n        uint64 _lockDays,\r\n        address _referrer\r\n    )\r\n        external\r\n        returns (bytes16, uint256, bytes16 referralID)\r\n    {\r\n        ERC20TokenI token = ERC20TokenI(\r\n            _tokenAddress\r\n        );\r\n\r\n        token.transferFrom(\r\n            msg.sender,\r\n            address(this),\r\n            _tokenAmount\r\n        );\r\n\r\n        token.approve(\r\n            address(UNISWAP_ROUTER),\r\n            _tokenAmount\r\n        );\r\n\r\n        address[] memory path = _preparePath(\r\n            _tokenAddress,\r\n            address(this)\r\n        );\r\n\r\n        uint256[] memory amounts =\r\n        UNISWAP_ROUTER.swapExactTokensForTokens(\r\n            _tokenAmount,\r\n            1,\r\n            path,\r\n            msg.sender,\r\n            block.timestamp + 2 hours\r\n        );\r\n\r\n        return createStake(\r\n            amounts[2],\r\n            _lockDays,\r\n            _referrer\r\n        );\r\n    }\r\n\r\n    /**\r\n     * @notice allows to save any stuck ERC20 from contract\r\n     * @dev if someone sends tokens into contract accidentally\r\n     * @param _tokenAddress any ERC20 token address\r\n     */\r\n    function saveTokens(\r\n        address _tokenAddress,\r\n        uint256 _tokenAmount\r\n    )\r\n        external\r\n    {\r\n        safeTransfer(\r\n            _tokenAddress,\r\n            savingAddress,\r\n            _tokenAmount\r\n        );\r\n    }\r\n}"}}

// SPDX-License-Identifier: --🦉--

pragma solidity =0.7.0;

contract RefundSponsor {

    address public refundSponsor;
    address public sponsoredContract;
    bool public isPaused;
    uint256 public flushNonce;
    uint256 public payoutPercent;

    mapping (bytes32 => uint256) public refundAmount;
    mapping (address => uint256) public sponsoredAmount;

    event RefundIssued(
        address refundedTo,
        uint256 amount
    );

    event SponsoredContribution(
        address sponsor,
        uint256 amount
    );

    modifier onlySponsor() {
        require(
            msg.sender == refundSponsor,
            'RefundSponsor: not a sponsor'
        );
        _;
    }

    receive()
        external
        payable
    {
        sponsoredAmount[msg.sender] += msg.value;
        emit SponsoredContribution(
            msg.sender,
            msg.value
        );
    }

    constructor() {
        refundSponsor = msg.sender;
        payoutPercent = 70;
    }

    function changePayoutPercent(
        uint256 _newPauoutPercent
    )
        external
        onlySponsor
    {
        payoutPercent = _newPauoutPercent;
    }

    function setSponsoredContract(address _s)
        onlySponsor
        external
    {
        sponsoredContract = _s;
    }

    function addGasRefund(address _a, uint256 _g)
        external
    {
        if (msg.sender == sponsoredContract && isPaused == false) {
            refundAmount[getHash(_a)] += _g;
        }
    }

    function setGasRefund(address _a, uint256 _g)
        external
        onlySponsor
    {
        refundAmount[getHash(_a)] = _g;
    }

    function requestGasRefund()
        external
    {
        require(
            isPaused == false,
            'RefundSponsor: refunds paused'
        );

        bytes32 sender = getHash(msg.sender);

        require(
            refundAmount[sender] > 0,
            'RefundSponsor: nothing to refund'
        );

        uint256 amount = getRefundAmount(msg.sender);
        refundAmount[sender] = 0;

        msg.sender.transfer(amount);

        emit RefundIssued(
            msg.sender,
            amount
        );
    }

    function myRefundAmount()
        external
        view
        returns (uint256)
    {
        return getRefundAmount(msg.sender) * payoutPercent / 100;
    }

    function getRefundAmount(address x)
        public
        view
        returns (uint256)
    {
        return refundAmount[getHash(x)] * payoutPercent / 100;
    }

    function getHash(address x)
        public
        view
        returns (bytes32)
    {
        return keccak256(
            abi.encodePacked(x, flushNonce)
        );
    }

    function pause()
        external
        onlySponsor
    {
        isPaused = true;
    }

    function resume()
        external
        onlySponsor
    {
        isPaused = false;
    }

    function flush()
        external
        onlySponsor
    {
        flushNonce += 1;
    }
}