contract DRCTOwner is MultiOwnerContract {
    string public constant AUTH_INITCONGRESS = "initCongress";
    string public constant AUTH_CANMINT = "canMint";
    string public constant AUTH_SETMINTAMOUNT = "setMintAmount";
    string public constant AUTH_FREEZEACCOUNT = "freezeAccount";

    bool congressInit = false;
    // bool paramsInit = false;
    // iParams public params;
    uint256 onceMintAmount;


    // function initParams(address _params) onlyOwner public {
    //     require(!paramsInit);
    //     require(_params != address(0));

    //     params = _params;
    //     paramsInit = false;
    // }

    /**
     * @dev Function to set mint token amount
     * @param _value The mint value.
     */
    function setOnceMintAmount(uint256 _value) onlyMultiOwners public {
        require(hasAuth(AUTH_SETMINTAMOUNT));
        require(_value > 0);
        onceMintAmount = _value;

        clearAuth(AUTH_SETMINTAMOUNT);
    }

    /**
     * @dev change the owner of the contract from this contract address to another one.
     *
     * @param _congress the contract address that will be next Owner of the original Contract
     */
    function initCongress(address _congress) onlyMultiOwners public {
        require(hasAuth(AUTH_INITCONGRESS));
        require(!congressInit);

        itoken tk = itoken(address(ownedContract));
        tk.initialCongress(_congress);

        clearAuth(AUTH_INITCONGRESS);
        congressInit = true;
    }

    /**
     * @dev Function to mint tokens
     * @param _to The address that will receive the minted tokens.
     * @return A boolean that indicates if the operation was successful.
     */
    function mint(address _to) onlyMultiOwners public returns (bool) {
        require(hasAuth(AUTH_CANMINT));

        itoken tk = itoken(address(ownedContract));
        bool res = tk.mint(_to, onceMintAmount);

        clearAuth(AUTH_CANMINT);
        return res;
    }

    /**
     * @dev Function to stop minting new tokens.
     * @return True if the operation was successful.
     */
    function finishMinting() onlyMultiOwners public returns (bool) {
        require(hasAuth(AUTH_CANMINT));

        itoken tk = itoken(address(ownedContract));
        bool res = tk.finishMinting();

        clearAuth(AUTH_CANMINT);
        return res;
    }

    /**
     * @dev freeze the account's balance under urgent situation
     *
     * by default all the accounts will not be frozen until set freeze value as true.
     *
     * @param _target address the account should be frozen
     * @param _freeze bool if true, the account will be frozen
     */
    function freezeAccountDirect(address _target, bool _freeze) onlyMultiOwners public {
        require(hasAuth(AUTH_FREEZEACCOUNT));

        require(_target != address(0));
        itoken tk = itoken(address(ownedContract));
        tk.freezeAccount(_target, _freeze);

        clearAuth(AUTH_FREEZEACCOUNT);
    }

    /**
     * @dev freeze the account's balance
     *
     * by default all the accounts will not be frozen until set freeze value as true.
     *
     * @param _target address the account should be frozen
     * @param _freeze bool if true, the account will be frozen
     */
    function freezeAccount(address _target, bool _freeze) onlyOwner public {
        require(_target != address(0));
        itoken tk = itoken(address(ownedContract));
        if (_freeze) {
            require(tk.allowance(_target, this) == tk.balanceOf(_target));
        }

        tk.freezeAccount(_target, _freeze);
    }

    /**
     * @dev freeze the account's balance
     *
     * @param _target address the account should be frozen
     * @param _value uint256 the amount of tokens that will be frozen
     */
    function freezeAccountPartialy(address _target, uint256 _value) onlyOwner public {
        require(_target != address(0));
        itoken tk = itoken(address(ownedContract));
        require(tk.allowance(_target, this) == _value);

        tk.freezeAccountPartialy(_target, _value);
    }

    /**
     * @dev called by the owner to pause, triggers stopped state
     */
    function pause() onlyOwner public {
        itoken tk = itoken(address(ownedContract));
        tk.pause();
    }

    /**
     * @dev called by the owner to unpause, returns to normal state
     */
    function unpause() onlyOwner public {
        itoken tk = itoken(address(ownedContract));
        tk.unpause();
    }

}
function mint(address _to) onlyMultiOwners public returns (bool) {
        require(hasAuth(AUTH_CANMINT));

        itoken tk = itoken(address(ownedContract));
        bool res = tk.mint(_to, onceMintAmount);

        clearAuth(AUTH_CANMINT);
        return res;
    }
/**
 * @dev Function to mint tokens
 * @param _to The address that will receive the minted tokens.
 * @return A boolean that indicates if the operation was successful.
 */