Transaction Decoder

// Dependency file: contracts/Proxy.sol

// pragma solidity ^0.4.21;

/**
 * @title Proxy
 * @dev Gives the possibility to delegate any call to a foreign implementation.
 */
contract Proxy {
  /**
  * @dev Tells the address of the implementation where every call will be delegated.
  * @return address of the implementation to which it will be delegated
  */
  function implementation() public view returns (address);

  /**
  * @dev Fallback function allowing to perform a delegatecall to the given implementation.
  * This function will return whatever the implementation call returns
  */
  function () payable public {
    address _impl = implementation();
    require(_impl != address(0));

    assembly {
      let ptr := mload(0x40)
      calldatacopy(ptr, 0, calldatasize)
      let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
      let size := returndatasize
      returndatacopy(ptr, 0, size)

      switch result
      case 0 { revert(ptr, size) }
      default { return(ptr, size) }
    }
  }
}


// Dependency file: contracts/UpgradeabilityProxy.sol

// pragma solidity ^0.4.21;

// import 'contracts/Proxy.sol';

/**
 * @title UpgradeabilityProxy
 * @dev This contract represents a proxy where the implementation address to which it will delegate can be upgraded
 */
contract UpgradeabilityProxy is Proxy {
  /**
   * @dev This event will be emitted every time the implementation gets upgraded
   * @param implementation representing the address of the upgraded implementation
   */
  event Upgraded(address indexed implementation);

  // Storage position of the address of the current implementation
  bytes32 private constant implementationPosition = keccak256("org.zeppelinos.proxy.implementation");

  /**
   * @dev Constructor function
   */
  function UpgradeabilityProxy() public {}

  /**
   * @dev Tells the address of the current implementation
   * @return address of the current implementation
   */
  function implementation() public view returns (address impl) {
    bytes32 position = implementationPosition;
    assembly {
      impl := sload(position)
    }
  }

  /**
   * @dev Sets the address of the current implementation
   * @param newImplementation address representing the new implementation to be set
   */
  function setImplementation(address newImplementation) internal {
    bytes32 position = implementationPosition;
    assembly {
      sstore(position, newImplementation)
    }
  }

  /**
   * @dev Upgrades the implementation address
   * @param newImplementation representing the address of the new implementation to be set
   */
  function _upgradeTo(address newImplementation) internal {
    address currentImplementation = implementation();
    require(currentImplementation != newImplementation);
    setImplementation(newImplementation);
    emit Upgraded(newImplementation);
  }
}


// Root file: contracts/OwnedUpgradeabilityProxy.sol

pragma solidity ^0.4.21;

// import 'contracts/UpgradeabilityProxy.sol';

/**
 * @title OwnedUpgradeabilityProxy
 * @dev This contract combines an upgradeability proxy with basic authorization control functionalities
 */
contract OwnedUpgradeabilityProxy is UpgradeabilityProxy {
  /**
  * @dev Event to show ownership has been transferred
  * @param previousOwner representing the address of the previous owner
  * @param newOwner representing the address of the new owner
  */
  event ProxyOwnershipTransferred(address previousOwner, address newOwner);

  // Storage position of the owner of the contract
  bytes32 private constant proxyOwnerPosition = keccak256("org.zeppelinos.proxy.owner");

  /**
  * @dev the constructor sets the original owner of the contract to the sender account.
  */
  function OwnedUpgradeabilityProxy() public {
    setUpgradeabilityOwner(msg.sender);
  }

  /**
  * @dev Throws if called by any account other than the owner.
  */
  modifier onlyProxyOwner() {
    require(msg.sender == proxyOwner());
    _;
  }

  /**
   * @dev Tells the address of the owner
   * @return the address of the owner
   */
  function proxyOwner() public view returns (address owner) {
    bytes32 position = proxyOwnerPosition;
    assembly {
      owner := sload(position)
    }
  }

  /**
   * @dev Sets the address of the owner
   */
  function setUpgradeabilityOwner(address newProxyOwner) internal {
    bytes32 position = proxyOwnerPosition;
    assembly {
      sstore(position, newProxyOwner)
    }
  }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferProxyOwnership(address newOwner) public onlyProxyOwner {
    require(newOwner != address(0));
    emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
    setUpgradeabilityOwner(newOwner);
  }

  /**
   * @dev Allows the proxy owner to upgrade the current version of the proxy.
   * @param implementation representing the address of the new implementation to be set.
   */
  function upgradeTo(address implementation) public onlyProxyOwner {
    _upgradeTo(implementation);
  }

  /**
   * @dev Allows the proxy owner to upgrade the current version of the proxy and call the new implementation
   * to initialize whatever is needed through a low level call.
   * @param implementation representing the address of the new implementation to be set.
   * @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
   * signature of the implementation to be called with the needed payload
   */
  function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
    upgradeTo(implementation);
    require(this.call.value(msg.value)(data));
  }
}

pragma solidity ^0.4.23;

contract DSAuthority {
    function canCall(
        address src, address dst, bytes4 sig
    ) public view returns (bool);
}

contract DSAuthEvents {
    event LogSetAuthority (address indexed authority);
    event LogSetOwner     (address indexed owner);
}

contract DSAuth is DSAuthEvents {
    DSAuthority  public  authority;
    address      public  owner;

    constructor() public {
        owner = msg.sender;
        emit LogSetOwner(msg.sender);
    }

    function setOwner(address owner_)
        public
        auth
    {
        owner = owner_;
        emit LogSetOwner(owner);
    }

    function setAuthority(DSAuthority authority_)
        public
        auth
    {
        authority = authority_;
        emit LogSetAuthority(authority);
    }

    modifier auth {
        require(isAuthorized(msg.sender, msg.sig));
        _;
    }

    function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
        if (src == address(this)) {
            return true;
        } else if (src == owner) {
            return true;
        } else if (authority == DSAuthority(0)) {
            return false;
        } else {
            return authority.canCall(src, this, sig);
        }
    }
}

contract DSNote {
    event LogNote(
        bytes4   indexed  sig,
        address  indexed  guy,
        bytes32  indexed  foo,
        bytes32  indexed  bar,
        uint              wad,
        bytes             fax
    ) anonymous;

    modifier note {
        bytes32 foo;
        bytes32 bar;

        assembly {
            foo := calldataload(4)
            bar := calldataload(36)
        }

        emit LogNote(msg.sig, msg.sender, foo, bar, msg.value, msg.data);

        _;
    }
}

contract DSStop is DSNote, DSAuth {

    bool public stopped;

    modifier stoppable {
        require(!stopped);
        _;
    }
    function stop() public auth note {
        stopped = true;
    }
    function start() public auth note {
        stopped = false;
    }

}

contract ERC20Events {
    event Approval(address indexed src, address indexed guy, uint wad);
    event Transfer(address indexed src, address indexed dst, uint wad);
}

contract ERC20 is ERC20Events {
    function totalSupply() public view returns (uint);
    function balanceOf(address guy) public view returns (uint);
    function allowance(address src, address guy) public view returns (uint);

    function approve(address guy, uint wad) public returns (bool);
    function transfer(address dst, uint wad) public returns (bool);
    function transferFrom(
        address src, address dst, uint wad
    ) public returns (bool);
}

contract DSMath {
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x);
    }
    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x);
    }
    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x);
    }

    function min(uint x, uint y) internal pure returns (uint z) {
        return x <= y ? x : y;
    }
    function max(uint x, uint y) internal pure returns (uint z) {
        return x >= y ? x : y;
    }
    function imin(int x, int y) internal pure returns (int z) {
        return x <= y ? x : y;
    }
    function imax(int x, int y) internal pure returns (int z) {
        return x >= y ? x : y;
    }

    uint constant WAD = 10 ** 18;
    uint constant RAY = 10 ** 27;

    function wmul(uint x, uint y) internal pure returns (uint z) {
        z = add(mul(x, y), WAD / 2) / WAD;
    }
    function rmul(uint x, uint y) internal pure returns (uint z) {
        z = add(mul(x, y), RAY / 2) / RAY;
    }
    function wdiv(uint x, uint y) internal pure returns (uint z) {
        z = add(mul(x, WAD), y / 2) / y;
    }
    function rdiv(uint x, uint y) internal pure returns (uint z) {
        z = add(mul(x, RAY), y / 2) / y;
    }

    // This famous algorithm is called "exponentiation by squaring"
    // and calculates x^n with x as fixed-point and n as regular unsigned.
    //
    // It's O(log n), instead of O(n) for naive repeated multiplication.
    //
    // These facts are why it works:
    //
    //  If n is even, then x^n = (x^2)^(n/2).
    //  If n is odd,  then x^n = x * x^(n-1),
    //   and applying the equation for even x gives
    //    x^n = x * (x^2)^((n-1) / 2).
    //
    //  Also, EVM division is flooring and
    //    floor[(n-1) / 2] = floor[n / 2].
    //
    function rpow(uint x, uint n) internal pure returns (uint z) {
        z = n % 2 != 0 ? x : RAY;

        for (n /= 2; n != 0; n /= 2) {
            x = rmul(x, x);

            if (n % 2 != 0) {
                z = rmul(z, x);
            }
        }
    }
}


contract DSTokenBase is ERC20, DSMath {
    uint256                                            _supply;
    mapping (address => uint256)                       _balances;
    mapping (address => mapping (address => uint256))  _approvals;

    constructor(uint supply) public {
        _balances[msg.sender] = supply;
        _supply = supply;
    }

    function totalSupply() public view returns (uint) {
        return _supply;
    }
    function balanceOf(address src) public view returns (uint) {
        return _balances[src];
    }
    function allowance(address src, address guy) public view returns (uint) {
        return _approvals[src][guy];
    }

    function transfer(address dst, uint wad) public returns (bool) {
        return transferFrom(msg.sender, dst, wad);
    }

    function transferFrom(address src, address dst, uint wad)
        public
        returns (bool)
    {
        if (src != msg.sender) {
            _approvals[src][msg.sender] = sub(_approvals[src][msg.sender], wad);
        }

        _balances[src] = sub(_balances[src], wad);
        _balances[dst] = add(_balances[dst], wad);

        emit Transfer(src, dst, wad);

        return true;
    }

    function approve(address guy, uint wad) public returns (bool) {
        _approvals[msg.sender][guy] = wad;

        emit Approval(msg.sender, guy, wad);

        return true;
    }
}

contract DSToken is DSTokenBase(0), DSStop {

    bytes32  public  symbol;
    uint256  public  decimals = 18; // standard token precision. override to customize

    constructor(bytes32 symbol_) public {
        symbol = symbol_;
    }

    event Mint(address indexed guy, uint wad);
    event Burn(address indexed guy, uint wad);

    function approve(address guy) public stoppable returns (bool) {
        return super.approve(guy, uint(-1));
    }

    function approve(address guy, uint wad) public stoppable returns (bool) {
        return super.approve(guy, wad);
    }

    function transferFrom(address src, address dst, uint wad)
        public
        stoppable
        returns (bool)
    {
        if (src != msg.sender && _approvals[src][msg.sender] != uint(-1)) {
            _approvals[src][msg.sender] = sub(_approvals[src][msg.sender], wad);
        }

        _balances[src] = sub(_balances[src], wad);
        _balances[dst] = add(_balances[dst], wad);

        emit Transfer(src, dst, wad);

        return true;
    }

    function push(address dst, uint wad) public {
        transferFrom(msg.sender, dst, wad);
    }
    function pull(address src, uint wad) public {
        transferFrom(src, msg.sender, wad);
    }
    function move(address src, address dst, uint wad) public {
        transferFrom(src, dst, wad);
    }

    function mint(uint wad) public {
        mint(msg.sender, wad);
    }
    function burn(uint wad) public {
        burn(msg.sender, wad);
    }
    function mint(address guy, uint wad) public auth stoppable {
        _balances[guy] = add(_balances[guy], wad);
        _supply = add(_supply, wad);
        emit Mint(guy, wad);
    }
    function burn(address guy, uint wad) public auth stoppable {
        if (guy != msg.sender && _approvals[guy][msg.sender] != uint(-1)) {
            _approvals[guy][msg.sender] = sub(_approvals[guy][msg.sender], wad);
        }

        _balances[guy] = sub(_balances[guy], wad);
        _supply = sub(_supply, wad);
        emit Burn(guy, wad);
    }

    // Optional token name
    bytes32   public  name = "";

    function setName(bytes32 name_) public auth {
        name = name_;
    }
}

/// @title ERC223ReceivingContract - Standard contract implementation for compatibility with ERC223 tokens.
interface ERC223ReceivingContract {

    /// @dev Function that is called when a user or another contract wants to transfer funds.
    /// @param _from Transaction initiator, analogue of msg.sender
    /// @param _value Number of tokens to transfer.
    /// @param _data Data containig a function signature and/or parameters
    function tokenFallback(address _from, uint256 _value, bytes _data) public;
}

/// @dev The token controller contract must implement these functions
contract TokenController {
    /// @notice Called when `_owner` sends ether to the MiniMe Token contract
    /// @param _owner The address that sent the ether to create tokens
    /// @return True if the ether is accepted, false if it throws
    function proxyPayment(address _owner, bytes4 sig, bytes data) payable public returns (bool);

    /// @notice Notifies the controller about a token transfer allowing the
    ///  controller to react if desired
    /// @param _from The origin of the transfer
    /// @param _to The destination of the transfer
    /// @param _amount The amount of the transfer
    /// @return False if the controller does not authorize the transfer
    function onTransfer(address _from, address _to, uint _amount) public returns (bool);

    /// @notice Notifies the controller about an approval allowing the
    ///  controller to react if desired
    /// @param _owner The address that calls `approve()`
    /// @param _spender The spender in the `approve()` call
    /// @param _amount The amount in the `approve()` call
    /// @return False if the controller does not authorize the approval
    function onApprove(address _owner, address _spender, uint _amount) public returns (bool);
}

interface ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 _amount, address _token, bytes _data) public;
}

interface ERC223 {
    function transfer(address to, uint amount, bytes data) public returns (bool ok);

    function transferFrom(address from, address to, uint256 amount, bytes data) public returns (bool ok);

    event ERC223Transfer(address indexed from, address indexed to, uint amount, bytes data);
}

contract ISmartToken {
    function transferOwnership(address _newOwner) public;
    function acceptOwnership() public;

    function disableTransfers(bool _disable) public;
    function issue(address _to, uint256 _amount) public;
    function destroy(address _from, uint256 _amount) public;
}

contract RING is DSToken("RING"), ERC223, ISmartToken {
    address public newOwner;
    bool public transfersEnabled = true;    // true if transfer/transferFrom are enabled, false if not

    uint256 public cap;

    address public controller;

    // allows execution only when transfers aren't disabled
    modifier transfersAllowed {
        assert(transfersEnabled);
        _;
    }

    constructor() public {
        setName("Evolution Land Global Token");
        controller = msg.sender;
    }

//////////
// IOwned Methods
//////////

    /**
        @dev allows transferring the contract ownership
        the new owner still needs to accept the transfer
        can only be called by the contract owner
        @param _newOwner    new contract owner
    */
    function transferOwnership(address _newOwner) public auth {
        require(_newOwner != owner);
        newOwner = _newOwner;
    }

    /**
        @dev used by a new owner to accept an ownership transfer
    */
    function acceptOwnership() public {
        require(msg.sender == newOwner);
        owner = newOwner;
        newOwner = address(0);
    }

//////////
// SmartToken Methods
//////////
    /**
        @dev disables/enables transfers
        can only be called by the contract owner
        @param _disable    true to disable transfers, false to enable them
    */
    function disableTransfers(bool _disable) public auth {
        transfersEnabled = !_disable;
    }

    function issue(address _to, uint256 _amount) public auth stoppable {
        mint(_to, _amount);
    }

    function destroy(address _from, uint256 _amount) public auth stoppable {
        // do not require allowance

        _balances[_from] = sub(_balances[_from], _amount);
        _supply = sub(_supply, _amount);
        emit Burn(_from, _amount);
        emit Transfer(_from, 0, _amount);
    }

//////////
// Cap Methods
//////////
    function changeCap(uint256 _newCap) public auth {
        require(_newCap >= _supply);

        cap = _newCap;
    }

//////////
// Controller Methods
//////////
    /// @notice Changes the controller of the contract
    /// @param _newController The new controller of the contract
    function changeController(address _newController) auth {
        controller = _newController;
    }

    /// @notice Send `_amount` tokens to `_to` from `_from` on the condition it
    ///  is approved by `_from`
    /// @param _from The address holding the tokens being transferred
    /// @param _to The address of the recipient
    /// @param _amount The amount of tokens to be transferred
    /// @return True if the transfer was successful
    function transferFrom(address _from, address _to, uint256 _amount
    ) public transfersAllowed returns (bool success) {
        // Alerts the token controller of the transfer
        if (isContract(controller)) {
            if (!TokenController(controller).onTransfer(_from, _to, _amount))
               revert();
        }

        success = super.transferFrom(_from, _to, _amount);
    }

    /*
     * ERC 223
     * Added support for the ERC 223 "tokenFallback" method in a "transfer" function with a payload.
     */
    function transferFrom(address _from, address _to, uint256 _amount, bytes _data)
        public transfersAllowed
        returns (bool success)
    {
        // Alerts the token controller of the transfer
        if (isContract(controller)) {
            if (!TokenController(controller).onTransfer(_from, _to, _amount))
               revert();
        }

        require(super.transferFrom(_from, _to, _amount));

        if (isContract(_to)) {
            ERC223ReceivingContract receiver = ERC223ReceivingContract(_to);
            receiver.tokenFallback(_from, _amount, _data);
        }

        emit ERC223Transfer(_from, _to, _amount, _data);

        return true;
    }

    /*
     * ERC 223
     * Added support for the ERC 223 "tokenFallback" method in a "transfer" function with a payload.
     * https://github.com/ethereum/EIPs/issues/223
     * function transfer(address _to, uint256 _value, bytes _data) public returns (bool success);
     */
    /// @notice Send `_value` tokens to `_to` from `msg.sender` and trigger
    /// tokenFallback if sender is a contract.
    /// @dev Function that is called when a user or another contract wants to transfer funds.
    /// @param _to Address of token receiver.
    /// @param _amount Number of tokens to transfer.
    /// @param _data Data to be sent to tokenFallback
    /// @return Returns success of function call.
    function transfer(
        address _to,
        uint256 _amount,
        bytes _data)
        public
        returns (bool success)
    {
        return transferFrom(msg.sender, _to, _amount, _data);
    }

    /// @notice `msg.sender` approves `_spender` to spend `_amount` tokens on
    ///  its behalf. This is a modified version of the ERC20 approve function
    ///  to be a little bit safer
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _amount The amount of tokens to be approved for transfer
    /// @return True if the approval was successful
    function approve(address _spender, uint256 _amount) returns (bool success) {
        // Alerts the token controller of the approve function call
        if (isContract(controller)) {
            if (!TokenController(controller).onApprove(msg.sender, _spender, _amount))
                revert();
        }
        
        return super.approve(_spender, _amount);
    }

    function mint(address _guy, uint _wad) auth stoppable {
        require(add(_supply, _wad) <= cap);

        super.mint(_guy, _wad);

        emit Transfer(0, _guy, _wad);
    }
    function burn(address _guy, uint _wad) auth stoppable {
        super.burn(_guy, _wad);

        emit Transfer(_guy, 0, _wad);
    }

    /// @notice `msg.sender` approves `_spender` to send `_amount` tokens on
    ///  its behalf, and then a function is triggered in the contract that is
    ///  being approved, `_spender`. This allows users to use their tokens to
    ///  interact with contracts in one function call instead of two
    /// @param _spender The address of the contract able to transfer the tokens
    /// @param _amount The amount of tokens to be approved for transfer
    /// @return True if the function call was successful
    function approveAndCall(address _spender, uint256 _amount, bytes _extraData
    ) returns (bool success) {
        if (!approve(_spender, _amount)) revert();

        ApproveAndCallFallBack(_spender).receiveApproval(
            msg.sender,
            _amount,
            this,
            _extraData
        );

        return true;
    }

    /// @dev Internal function to determine if an address is a contract
    /// @param _addr The address being queried
    /// @return True if `_addr` is a contract
    function isContract(address _addr) constant internal returns(bool) {
        uint size;
        if (_addr == 0) return false;
        assembly {
            size := extcodesize(_addr)
        }
        return size>0;
    }

    /// @notice The fallback function: If the contract's controller has not been
    ///  set to 0, then the `proxyPayment` method is called which relays the
    ///  ether and creates tokens as described in the token controller contract
    function ()  payable {
        if (isContract(controller)) {
            if (! TokenController(controller).proxyPayment.value(msg.value)(msg.sender, msg.sig, msg.data))
                revert();
        } else {
            revert();
        }
    }

//////////
// Safety Methods
//////////

    /// @notice This method can be used by the owner to extract mistakenly
    ///  sent tokens to this contract.
    /// @param _token The address of the token contract that you want to recover
    ///  set to 0 in case you want to extract ether.
    function claimTokens(address _token) public auth {
        if (_token == 0x0) {
            address(msg.sender).transfer(address(this).balance);
            return;
        }

        ERC20 token = ERC20(_token);
        uint balance = token.balanceOf(this);
        token.transfer(address(msg.sender), balance);

        emit ClaimedTokens(_token, address(msg.sender), balance);
    }

    function withdrawTokens(ERC20 _token, address _to, uint256 _amount) public auth
    {
        assert(_token.transfer(_to, _amount));
    }

////////////////
// Events
////////////////

    event ClaimedTokens(address indexed _token, address indexed _controller, uint _amount);
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol

pragma solidity ^0.4.24;


/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * See https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
  function totalSupply() public view returns (uint256);
  function balanceOf(address _who) public view returns (uint256);
  function transfer(address _to, uint256 _value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20.sol

pragma solidity ^0.4.24;



/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address _owner, address _spender)
    public view returns (uint256);

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

  function approve(address _spender, uint256 _value) public returns (bool);
  event Approval(
    address indexed owner,
    address indexed spender,
    uint256 value
  );
}

// File: @evolutionland/common/contracts/interfaces/ISettingsRegistry.sol

pragma solidity ^0.4.24;

contract ISettingsRegistry {
    enum SettingsValueTypes { NONE, UINT, STRING, ADDRESS, BYTES, BOOL, INT }

    function uintOf(bytes32 _propertyName) public view returns (uint256);

    function stringOf(bytes32 _propertyName) public view returns (string);

    function addressOf(bytes32 _propertyName) public view returns (address);

    function bytesOf(bytes32 _propertyName) public view returns (bytes);

    function boolOf(bytes32 _propertyName) public view returns (bool);

    function intOf(bytes32 _propertyName) public view returns (int);

    function setUintProperty(bytes32 _propertyName, uint _value) public;

    function setStringProperty(bytes32 _propertyName, string _value) public;

    function setAddressProperty(bytes32 _propertyName, address _value) public;

    function setBytesProperty(bytes32 _propertyName, bytes _value) public;

    function setBoolProperty(bytes32 _propertyName, bool _value) public;

    function setIntProperty(bytes32 _propertyName, int _value) public;

    function getValueTypeOf(bytes32 _propertyName) public view returns (uint /* SettingsValueTypes */ );

    event ChangeProperty(bytes32 indexed _propertyName, uint256 _type);
}

// File: @evolutionland/common/contracts/interfaces/IBurnableERC20.sol

pragma solidity ^0.4.23;

contract IBurnableERC20 {
    function burn(address _from, uint _value) public;
}

// File: @evolutionland/common/contracts/interfaces/IMintableERC20.sol

pragma solidity ^0.4.23;

contract IMintableERC20 {

    function mint(address _to, uint256 _value) public;
}

// File: @evolutionland/common/contracts/interfaces/IAuthority.sol

pragma solidity ^0.4.24;

contract IAuthority {
    function canCall(
        address src, address dst, bytes4 sig
    ) public view returns (bool);
}

// File: @evolutionland/common/contracts/DSAuth.sol

pragma solidity ^0.4.24;


contract DSAuthEvents {
    event LogSetAuthority (address indexed authority);
    event LogSetOwner     (address indexed owner);
}

/**
 * @title DSAuth
 * @dev The DSAuth contract is reference implement of https://github.com/dapphub/ds-auth
 * But in the isAuthorized method, the src from address(this) is remove for safty concern.
 */
contract DSAuth is DSAuthEvents {
    IAuthority   public  authority;
    address      public  owner;

    constructor() public {
        owner = msg.sender;
        emit LogSetOwner(msg.sender);
    }

    function setOwner(address owner_)
        public
        auth
    {
        owner = owner_;
        emit LogSetOwner(owner);
    }

    function setAuthority(IAuthority authority_)
        public
        auth
    {
        authority = authority_;
        emit LogSetAuthority(authority);
    }

    modifier auth {
        require(isAuthorized(msg.sender, msg.sig));
        _;
    }

    modifier onlyOwner() {
        require(msg.sender == owner);
        _;
    }

    function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
        if (src == owner) {
            return true;
        } else if (authority == IAuthority(0)) {
            return false;
        } else {
            return authority.canCall(src, this, sig);
        }
    }
}

// File: @evolutionland/common/contracts/SettingIds.sol

pragma solidity ^0.4.24;

/**
    Id definitions for SettingsRegistry.sol
    Can be used in conjunction with the settings registry to get properties
*/
contract SettingIds {
    bytes32 public constant CONTRACT_RING_ERC20_TOKEN = "CONTRACT_RING_ERC20_TOKEN";

    bytes32 public constant CONTRACT_KTON_ERC20_TOKEN = "CONTRACT_KTON_ERC20_TOKEN";

    bytes32 public constant CONTRACT_GOLD_ERC20_TOKEN = "CONTRACT_GOLD_ERC20_TOKEN";

    bytes32 public constant CONTRACT_WOOD_ERC20_TOKEN = "CONTRACT_WOOD_ERC20_TOKEN";

    bytes32 public constant CONTRACT_WATER_ERC20_TOKEN = "CONTRACT_WATER_ERC20_TOKEN";

    bytes32 public constant CONTRACT_FIRE_ERC20_TOKEN = "CONTRACT_FIRE_ERC20_TOKEN";

    bytes32 public constant CONTRACT_SOIL_ERC20_TOKEN = "CONTRACT_SOIL_ERC20_TOKEN";

    bytes32 public constant CONTRACT_OBJECT_OWNERSHIP = "CONTRACT_OBJECT_OWNERSHIP";

    bytes32 public constant CONTRACT_TOKEN_LOCATION = "CONTRACT_TOKEN_LOCATION";

    bytes32 public constant CONTRACT_LAND_BASE = "CONTRACT_LAND_BASE";

    bytes32 public constant CONTRACT_USER_POINTS = "CONTRACT_USER_POINTS";

    bytes32 public constant CONTRACT_INTERSTELLAR_ENCODER = "CONTRACT_INTERSTELLAR_ENCODER";

    bytes32 public constant CONTRACT_DIVIDENDS_POOL = "CONTRACT_DIVIDENDS_POOL";

    bytes32 public constant CONTRACT_TOKEN_USE = "CONTRACT_TOKEN_USE";

    bytes32 public constant CONTRACT_REVENUE_POOL = "CONTRACT_REVENUE_POOL";

    bytes32 public constant CONTRACT_ERC721_BRIDGE = "CONTRACT_ERC721_BRIDGE";

    bytes32 public constant CONTRACT_PET_BASE = "CONTRACT_PET_BASE";

    // Cut owner takes on each auction, measured in basis points (1/100 of a percent).
    // this can be considered as transaction fee.
    // Values 0-10,000 map to 0%-100%
    // set ownerCut to 4%
    // ownerCut = 400;
    bytes32 public constant UINT_AUCTION_CUT = "UINT_AUCTION_CUT";  // Denominator is 10000

    bytes32 public constant UINT_TOKEN_OFFER_CUT = "UINT_TOKEN_OFFER_CUT";  // Denominator is 10000

    // Cut referer takes on each auction, measured in basis points (1/100 of a percent).
    // which cut from transaction fee.
    // Values 0-10,000 map to 0%-100%
    // set refererCut to 4%
    // refererCut = 400;
    bytes32 public constant UINT_REFERER_CUT = "UINT_REFERER_CUT";

    bytes32 public constant CONTRACT_LAND_RESOURCE = "CONTRACT_LAND_RESOURCE";
}

// File: contracts/BankSettingIds.sol

pragma solidity ^0.4.24;



contract BankSettingIds is SettingIds {

    // depositing X RING for 12 months, interest is about (1 * _unitInterest * X / 10**7) KTON
    // default: 1000
    bytes32 public constant UINT_BANK_UNIT_INTEREST = "UINT_BANK_UNIT_INTEREST";

    // penalty multiplier
    // default: 3
    bytes32 public constant UINT_BANK_PENALTY_MULTIPLIER = "UINT_BANK_PENALTY_MULTIPLIER";
}

// File: contracts/GringottsBankV2.sol

pragma solidity ^0.4.24;







contract  GringottsBank is DSAuth, BankSettingIds {
    /*
     *  Events
     */
    event ClaimedTokens(address indexed _token, address indexed _owner, uint _amount);

    event NewDeposit(uint256 indexed _depositID, address indexed _depositor, uint _value, uint _month, uint _interest);

    event ClaimedDeposit(uint256 indexed _depositID, address indexed _depositor, uint _value, bool isPenalty, uint penaltyAmount);

    event TransferDeposit(uint256 indexed _depositID, address indexed _oldDepositor, address indexed _newDepositor);

    event BurnAndRedeem(uint256 indexed _depositID,  address _depositor, uint48 _months, uint48 _startAt, uint64 _unitInterest, uint128 _value, bytes _data);

    /*
     *  Constants
     */
    uint public constant MONTH = 30 * 1 days;

    /*
     *  Structs
     */
    struct Deposit {
        address depositor;
        uint48 months; // Length of time from the deposit's beginning to end (in months), For now, months must >= 1 and <= 36
        uint48 startAt;   // when player deposit, timestamp in seconds
        uint128 value;  // amount of ring
        uint64 unitInterest;
        bool claimed;
    }


    /*
     *  Storages
     */

    bool private singletonLock = false;


    ISettingsRegistry public registry;

    mapping (uint256 => Deposit) public deposits;

    uint public depositCount;

    mapping (address => uint[]) public userDeposits;

    // player => totalDepositRING, total number of ring that the player has deposited
    mapping (address => uint256) public userTotalDeposit;

    /*
     *  Modifiers
     */
    modifier singletonLockCall() {
        require(!singletonLock, "Only can call once");
        _;
        singletonLock = true;
    }

    modifier canBeStoredWith128Bits(uint256 _value) {
        require(_value < 340282366920938463463374607431768211455);
        _;
    }

    modifier canBeStoredWith48Bits(uint256 _value) {
        require(_value < 281474976710656);
        _;
    }


    /**
     * @dev Bank's constructor which set the token address and unitInterest_
     */
    constructor () public {
        // initializeContract(_registry);
    }

    /**
     * @dev Same with constructor, but is used and called by storage proxy as logic contract.
     * @param _registry - address of SettingsRegistry
     */
    function initializeContract(address _registry) public singletonLockCall {
        // call Ownable's constructor
        owner = msg.sender;

        emit LogSetOwner(msg.sender);

        registry = ISettingsRegistry(_registry);
    }

    function getDeposit(uint _id) public view returns (address, uint128, uint128, uint256, uint256, bool ) {
        return (deposits[_id].depositor, deposits[_id].value, deposits[_id].months,
            deposits[_id].startAt, deposits[_id].unitInterest, deposits[_id].claimed);
    }

    /**
     * @dev ERC223 fallback function, make sure to check the msg.sender is from target token contracts
     * @param _from - person who transfer token in for deposits or claim deposit with penalty KTON.
     * @param _amount - amount of token.
     * @param _data - data which indicate the operations.
     */
    function tokenFallback(address _from, uint256 _amount, bytes _data) public {
        address ring = registry.addressOf(SettingIds.CONTRACT_RING_ERC20_TOKEN);
        address kryptonite = registry.addressOf(SettingIds.CONTRACT_KTON_ERC20_TOKEN);

        // deposit entrance
        if(ring == msg.sender) {
            uint months = bytesToUint256(_data);
            _deposit(_from, _amount, months);
        }
        //  Early Redemption entrance

        if (kryptonite == msg.sender) {
            uint _depositID = bytesToUint256(_data);

            require(_amount >= computePenalty(_depositID), "No enough amount of KTON penalty.");

            _claimDeposit(_from, _depositID, true, _amount);

            // burn the KTON transferred in
            IBurnableERC20(kryptonite).burn(address(this), _amount);
        }
    }

    /**
     * @dev transfer of deposit from  Ethereum network to Darwinia Network, params can be obtained by the function 'getDeposit'
     * @param _depositID - ID of deposit.
     * @param _data - receiving address of darwinia network.

     */
    function burnAndRedeem(uint256 _depositID, bytes _data) public {
        bytes32 darwiniaAddress;

        assembly {
            let ptr := mload(0x40)
            calldatacopy(ptr, 0, calldatasize)
            darwiniaAddress := mload(add(ptr, 100))
        }

        // Check the validity of the deposit
        require(deposits[_depositID].claimed == false, "Already claimed");
        require(deposits[_depositID].startAt > 0, "Deposit not created.");
        require(deposits[_depositID].depositor == msg.sender, "Permission denied");

        require(_data.length == 32, "The address (Darwinia Network) must be in a 32 bytes hexadecimal format");
        require(darwiniaAddress != bytes32(0x0), "Darwinia Network Address can't be empty");

        removeUserDepositsByID(_depositID, msg.sender);

        require(deposits[_depositID].value <= userTotalDeposit[msg.sender], "Subtraction overflow");
        userTotalDeposit[msg.sender] -= deposits[_depositID].value;

        address ring = registry.addressOf(SettingIds.CONTRACT_RING_ERC20_TOKEN);
        IBurnableERC20(ring).burn(address(this), deposits[_depositID].value);
        
        emit BurnAndRedeem(
            _depositID, 
            deposits[_depositID].depositor, 
            deposits[_depositID].months, 
            deposits[_depositID].startAt, 
            deposits[_depositID].unitInterest, 
            deposits[_depositID].value, 
            _data
        );

        delete deposits[_depositID];
    }

    /**
     * @dev Deposit for msg sender, require the token approvement ahead.
     * @param _amount - amount of token.
     * @param _months - the amount of months that the token will be locked in the deposit.
     */
    function deposit(uint256 _amount, uint256 _months) public {
        deposit(msg.sender, _amount, _months);
    }

    /**
     * @dev Deposit for benificiary, require the token approvement ahead.
     * @param _benificiary - benificiary of the deposit, which will get the KTON and RINGs after deposit being claimed.
     * @param _amount - amount of token.
     * @param _months - the amount of months that the token will be locked in the deposit.
     */
    function deposit(address _benificiary, uint256 _amount, uint256 _months) public {

        address ring = registry.addressOf(SettingIds.CONTRACT_RING_ERC20_TOKEN);
        require(ERC20(ring).transferFrom(msg.sender, address(this), _amount), "RING token tranfer failed.");


        _deposit(_benificiary, _amount, _months);
    }

    function claimDeposit(uint _depositID) public {
        _claimDeposit(msg.sender, _depositID, false, 0);
    }

    function claimDepositWithPenalty(uint _depositID) public {
        address kryptonite = ERC20(registry.addressOf(SettingIds.CONTRACT_KTON_ERC20_TOKEN));
        uint256 _penalty = computePenalty(_depositID);

        require(ERC20(kryptonite).transferFrom(msg.sender, address(this), _penalty));

        _claimDeposit(msg.sender, _depositID, true, _penalty);

        IBurnableERC20(kryptonite).burn(address(this), _penalty);
    }

    function transferDeposit(address _benificiary, uint _depositID) public {
        require(deposits[_depositID].depositor == msg.sender, "Depositor must be the msg.sender");
        require(_benificiary != 0x0, "Benificiary can not be zero");
        require(deposits[_depositID].claimed == false, "Already claimed, can not transfer.");

        // update the depositor of the deposit.
        deposits[_depositID].depositor = _benificiary;

        // update the deposit ids of the original user and new user.
        removeUserDepositsByID(_depositID, msg.sender);
        userDeposits[_benificiary].push(_depositID);

        // update the balance of the original depositor and new depositor.
        require(deposits[_depositID].value <= userTotalDeposit[msg.sender], "Subtraction overflow");
        userTotalDeposit[msg.sender] -= deposits[_depositID].value;

        userTotalDeposit[_benificiary] += deposits[_depositID].value;
        require(userTotalDeposit[_benificiary] >= deposits[_depositID].value, "Addition overflow");

        emit TransferDeposit(_depositID, msg.sender, _benificiary);
    }

    // normal Redemption, withdraw at maturity
    function _claimDeposit(address _depositor, uint _depositID, bool isPenalty, uint _penaltyAmount) internal {

        address ring = registry.addressOf(SettingIds.CONTRACT_RING_ERC20_TOKEN);

        require(deposits[_depositID].startAt > 0, "Deposit not created.");
        require(deposits[_depositID].claimed == false, "Already claimed");
        require(deposits[_depositID].depositor == _depositor, "Depositor must match.");

        if (isPenalty) {
            require(now - deposits[_depositID].startAt < deposits[_depositID].months * MONTH );
        } else {
            require(now - deposits[_depositID].startAt >= deposits[_depositID].months * MONTH );
        }

        deposits[_depositID].claimed = true;
        userTotalDeposit[_depositor] -= deposits[_depositID].value;

        require(ERC20(ring).transfer(_depositor, deposits[_depositID].value));


        emit ClaimedDeposit(_depositID, _depositor, deposits[_depositID].value, isPenalty, _penaltyAmount);
    }

    /**
     * @dev deposit actions
     * @param _depositor - person who deposits
     * @param _value - depositor wants to deposit how many tokens
     * @param _month - Length of time from the deposit's beginning to end (in months).
     */

    function _deposit(address _depositor, uint _value, uint _month)
        canBeStoredWith128Bits(_value) canBeStoredWith128Bits(_month) internal returns (uint _depositId) {

        address kryptonite = ERC20(registry.addressOf(SettingIds.CONTRACT_KTON_ERC20_TOKEN));

        require( _value > 0 );  // because the _value is pass in from token transfer, token transfer will help check, so there should not be overflow issues.
        require( _month <= 36 && _month >= 1 );

        _depositId = depositCount;

        uint64 _unitInterest = uint64(registry.uintOf(BankSettingIds.UINT_BANK_UNIT_INTEREST));

        deposits[_depositId] = Deposit({
            depositor: _depositor,
            value: uint128(_value),
            months: uint48(_month),
            startAt: uint48(now),
            unitInterest: uint48(_unitInterest),
            claimed: false
        });

        depositCount += 1;

        userDeposits[_depositor].push(_depositId);

        userTotalDeposit[_depositor] += _value;
        require(userTotalDeposit[_depositor] >= _value, "Addition overflow");

        // give the player interest immediately
        uint interest = computeInterest(_value, _month, _unitInterest);
        IMintableERC20(kryptonite).mint(_depositor, interest);

        emit NewDeposit(_depositId, _depositor, _value, _month, interest);
    }

    /**
     * @dev compute interst based on deposit amount and deposit time
     * @param _value - Amount of ring  (in deceimal units)
     * @param _month - Length of time from the deposit's beginning to end (in months).
     * @param _unitInterest - Parameter of basic interest for deposited RING.(default value is 1000, returns _unitInterest/ 10**7 for one year)
     */
    function computeInterest(uint _value, uint _month, uint _unitInterest)
        public canBeStoredWith128Bits(_value) canBeStoredWith48Bits(_month) pure returns (uint) {
        // these two actually mean the multiplier is 1.015
        uint numerator = 67 ** _month;
        uint denominator = 66 ** _month;
        uint quotient;
        uint remainder;

        assembly {
            quotient := div(numerator, denominator)
            remainder := mod(numerator, denominator)
        }
        // depositing X RING for 12 months, interest is about (1 * _unitInterest * X / 10**7) KTON
        // and the multiplier is about 3
        // ((quotient - 1) * 1000 + remainder * 1000 / denominator) is 197 when _month is 12.
        return (_unitInterest * uint128(_value)) * ((quotient - 1) * 1000 + remainder * 1000 / denominator) / (197 * 10**7);
    }

    function isClaimRequirePenalty(uint _depositID) public view returns (bool) {
        return (deposits[_depositID].startAt > 0 &&
                !deposits[_depositID].claimed &&
                (now - deposits[_depositID].startAt < deposits[_depositID].months * MONTH ));
    }

    function computePenalty(uint _depositID) public view returns (uint256) {
        require(isClaimRequirePenalty(_depositID), "Claim do not need Penalty.");

        uint256 monthsDuration = (now - deposits[_depositID].startAt) / MONTH;

        uint256 penalty = registry.uintOf(BankSettingIds.UINT_BANK_PENALTY_MULTIPLIER) *
            (computeInterest(deposits[_depositID].value, deposits[_depositID].months, deposits[_depositID].unitInterest) - computeInterest(deposits[_depositID].value, monthsDuration, deposits[_depositID].unitInterest));


        return penalty;
    }

    function getDepositIds(address _user) public view returns(uint256[]) {
        return userDeposits[_user];
    }

    function bytesToUint256(bytes _encodedParam) public pure returns (uint256 a) {
        /* solium-disable-next-line security/no-inline-assembly */
        assembly {
            a := mload(add(_encodedParam, /*BYTES_HEADER_SIZE*/32))
        }
    }

    /// @notice This method can be used by the owner to extract mistakenly
    ///  sent tokens to this contract.
    /// @param _token The address of the token contract that you want to recover
    ///  set to 0 in case you want to extract ether.
    function claimTokens(address _token) public onlyOwner {
        if (_token == 0x0) {
            owner.transfer(address(this).balance);
            return;
        }
        ERC20 token = ERC20(_token);
        uint balance = token.balanceOf(address(this));
        token.transfer(owner, balance);

        emit ClaimedTokens(_token, owner, balance);
    }

    function setRegistry(address _registry) public onlyOwner {
        registry = ISettingsRegistry(_registry);
    }

    function removeUserDepositsByID(uint _depositID, address _depositor) private{
        // update the deposit ids of the original user and new user.
        bool found = false;
        for(uint i = 0 ; i < userDeposits[_depositor].length; i++)
        {
            if (!found && userDeposits[_depositor][i] == _depositID){
                found = true;
                delete userDeposits[_depositor][i];
            }

            if (found && i < userDeposits[_depositor].length - 1)
            {
                // shifts value to left
                userDeposits[_depositor][i] =  userDeposits[_depositor][i+1];
            }
        }

        delete userDeposits[_depositor][userDeposits[_depositor].length-1];
        //reducing the length
        userDeposits[_depositor].length--;
    }

}

// Dependency file: contracts/interfaces/ISettingsRegistry.sol

// pragma solidity ^0.4.24;

contract ISettingsRegistry {
    enum SettingsValueTypes { NONE, UINT, STRING, ADDRESS, BYTES, BOOL, INT }

    function uintOf(bytes32 _propertyName) public view returns (uint256);

    function stringOf(bytes32 _propertyName) public view returns (string);

    function addressOf(bytes32 _propertyName) public view returns (address);

    function bytesOf(bytes32 _propertyName) public view returns (bytes);

    function boolOf(bytes32 _propertyName) public view returns (bool);

    function intOf(bytes32 _propertyName) public view returns (int);

    function setUintProperty(bytes32 _propertyName, uint _value) public;

    function setStringProperty(bytes32 _propertyName, string _value) public;

    function setAddressProperty(bytes32 _propertyName, address _value) public;

    function setBytesProperty(bytes32 _propertyName, bytes _value) public;

    function setBoolProperty(bytes32 _propertyName, bool _value) public;

    function setIntProperty(bytes32 _propertyName, int _value) public;

    function getValueTypeOf(bytes32 _propertyName) public view returns (uint /* SettingsValueTypes */ );

    event ChangeProperty(bytes32 indexed _propertyName, uint256 _type);
}

// Dependency file: contracts/interfaces/IAuthority.sol

// pragma solidity ^0.4.24;

contract IAuthority {
    function canCall(
        address src, address dst, bytes4 sig
    ) public view returns (bool);
}

// Dependency file: contracts/DSAuth.sol

// pragma solidity ^0.4.24;

// import 'contracts/interfaces/IAuthority.sol';

contract DSAuthEvents {
    event LogSetAuthority (address indexed authority);
    event LogSetOwner     (address indexed owner);
}

/**
 * @title DSAuth
 * @dev The DSAuth contract is reference implement of https://github.com/dapphub/ds-auth
 * But in the isAuthorized method, the src from address(this) is remove for safty concern.
 */
contract DSAuth is DSAuthEvents {
    IAuthority   public  authority;
    address      public  owner;

    constructor() public {
        owner = msg.sender;
        emit LogSetOwner(msg.sender);
    }

    function setOwner(address owner_)
        public
        auth
    {
        owner = owner_;
        emit LogSetOwner(owner);
    }

    function setAuthority(IAuthority authority_)
        public
        auth
    {
        authority = authority_;
        emit LogSetAuthority(authority);
    }

    modifier auth {
        require(isAuthorized(msg.sender, msg.sig));
        _;
    }

    modifier onlyOwner() {
        require(msg.sender == owner);
        _;
    }

    function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
        if (src == owner) {
            return true;
        } else if (authority == IAuthority(0)) {
            return false;
        } else {
            return authority.canCall(src, this, sig);
        }
    }
}


// Root file: contracts/SettingsRegistry.sol

pragma solidity ^0.4.24;

// import "contracts/interfaces/ISettingsRegistry.sol";
// import "contracts/DSAuth.sol";

/**
 * @title SettingsRegistry
 * @dev This contract holds all the settings for updating and querying.
 */
contract SettingsRegistry is ISettingsRegistry, DSAuth {

    mapping(bytes32 => uint256) public uintProperties;
    mapping(bytes32 => string) public stringProperties;
    mapping(bytes32 => address) public addressProperties;
    mapping(bytes32 => bytes) public bytesProperties;
    mapping(bytes32 => bool) public boolProperties;
    mapping(bytes32 => int256) public intProperties;

    mapping(bytes32 => SettingsValueTypes) public valueTypes;

    function uintOf(bytes32 _propertyName) public view returns (uint256) {
        require(valueTypes[_propertyName] == SettingsValueTypes.UINT, "Property type does not match.");
        return uintProperties[_propertyName];
    }

    function stringOf(bytes32 _propertyName) public view returns (string) {
        require(valueTypes[_propertyName] == SettingsValueTypes.STRING, "Property type does not match.");
        return stringProperties[_propertyName];
    }

    function addressOf(bytes32 _propertyName) public view returns (address) {
        require(valueTypes[_propertyName] == SettingsValueTypes.ADDRESS, "Property type does not match.");
        return addressProperties[_propertyName];
    }

    function bytesOf(bytes32 _propertyName) public view returns (bytes) {
        require(valueTypes[_propertyName] == SettingsValueTypes.BYTES, "Property type does not match.");
        return bytesProperties[_propertyName];
    }

    function boolOf(bytes32 _propertyName) public view returns (bool) {
        require(valueTypes[_propertyName] == SettingsValueTypes.BOOL, "Property type does not match.");
        return boolProperties[_propertyName];
    }

    function intOf(bytes32 _propertyName) public view returns (int) {
        require(valueTypes[_propertyName] == SettingsValueTypes.INT, "Property type does not match.");
        return intProperties[_propertyName];
    }

    function setUintProperty(bytes32 _propertyName, uint _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.UINT, "Property type does not match.");
        uintProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.UINT;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.UINT));
    }

    function setStringProperty(bytes32 _propertyName, string _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.STRING, "Property type does not match.");
        stringProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.STRING;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.STRING));
    }

    function setAddressProperty(bytes32 _propertyName, address _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.ADDRESS, "Property type does not match.");

        addressProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.ADDRESS;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.ADDRESS));
    }

    function setBytesProperty(bytes32 _propertyName, bytes _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.BYTES, "Property type does not match.");

        bytesProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.BYTES;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.BYTES));
    }

    function setBoolProperty(bytes32 _propertyName, bool _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.BOOL, "Property type does not match.");

        boolProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.BOOL;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.BOOL));
    }

    function setIntProperty(bytes32 _propertyName, int _value) public auth {
        require(
            valueTypes[_propertyName] == SettingsValueTypes.NONE || valueTypes[_propertyName] == SettingsValueTypes.INT, "Property type does not match.");

        intProperties[_propertyName] = _value;
        valueTypes[_propertyName] = SettingsValueTypes.INT;

        emit ChangeProperty(_propertyName, uint256(SettingsValueTypes.INT));
    }

    function getValueTypeOf(bytes32 _propertyName) public view returns (uint256 /* SettingsValueTypes */ ) {
        return uint256(valueTypes[_propertyName]);
    }

}