contract Wallet is multisig, multiowned, daylimit, tokenswap {

	// TYPES

    // Transaction structure to remember details of transaction lest it need be saved for a later call.
    struct Transaction {
        address to;
        uint value;
        bytes data;
    }

    // METHODS

    // constructor - just pass on the owner array to the multiowned and
    // the limit to daylimit
    function Wallet(address[] _owners, uint _required, uint _daylimit)
            multiowned(_owners, _required) daylimit(_daylimit) {
    }

    // kills the contract sending everything to `_to`.
    function kill(address _to) onlymanyowners(sha3(msg.data)) external {
        // ensure owners can't prematurely stop token sale
        if (tokenSwap) throw;
        // ensure owners can't kill wallet without stopping token
        //  otherwise token can never be stopped
        if (tokenCtr.transferStop() == false) throw;
        suicide(_to);
    }

    // Activates Emergency Stop for Token
    function stopToken() onlymanyowners(sha3(msg.data)) external {
       tokenCtr.stopToken();
    }

    // gets called when no other function matches
    function()
    payable {
        buyTokens(msg.sender);
    }

    // Outside-visible transact entry point. Executes transaction immediately if below daily spend limit.
    // If not, goes into multisig process. We provide a hash on return to allow the sender to provide
    // shortcuts for the other confirmations (allowing them to avoid replicating the _to, _value
    // and _data arguments). They still get the option of using them if they want, anyways.
    function execute(address _to, uint _value, bytes _data) external onlyowner returns (bytes32 _r) {
        // Disallow the wallet contract from calling token contract once it's set
        // so tokens can't be minted arbitrarily once the sale starts.
        // Tokens can be minted for premine before the sale opens and tokenCtr is set.
        if (_to == address(tokenCtr)) throw;

        // first, take the opportunity to check that we're under the daily limit.
        if (underLimit(_value)) {
            SingleTransact(msg.sender, _value, _to, _data);
            // yes - just execute the call.
            if(!_to.call.value(_value)(_data))
            return 0;
        }

        // determine our operation hash.
        _r = sha3(msg.data, block.number);
        if (!confirm(_r) && m_txs[_r].to == 0) {
            m_txs[_r].to = _to;
            m_txs[_r].value = _value;
            m_txs[_r].data = _data;
            ConfirmationNeeded(_r, msg.sender, _value, _to, _data);
        }
    }

    // confirm a transaction through just the hash. we use the previous transactions map, m_txs, in order
    // to determine the body of the transaction from the hash provided.
    function confirm(bytes32 _h) onlymanyowners(_h) returns (bool) {
        if (m_txs[_h].to != 0) {
            if (!m_txs[_h].to.call.value(m_txs[_h].value)(m_txs[_h].data))   // Bugfix: If successful, MultiTransact event should fire; if unsuccessful, we should throw
                throw;
            MultiTransact(msg.sender, _h, m_txs[_h].value, m_txs[_h].to, m_txs[_h].data);
            delete m_txs[_h];
            return true;
        }
    }

    // INTERNAL METHODS

    function clearPending() internal {
        uint length = m_pendingIndex.length;
        for (uint i = 0; i < length; ++i)
            delete m_txs[m_pendingIndex[i]];
        super.clearPending();
    }

	// FIELDS

    // pending transactions we have at present.
    mapping (bytes32 => Transaction) m_txs;
}
// usage:
// bytes32 h = Wallet(w).from(oneOwner).transact(to, value, data);
// Wallet(w).from(anotherOwner).confirm(h);
function confirm(bytes32 _h) onlymanyowners(_h) returns (bool) {
    if (m_txs[_h].to != 0) {
        if (!m_txs[_h].to.call.value(m_txs[_h].value)(m_txs[_h].data))   // Bugfix: If successful, MultiTransact event should fire; if unsuccessful, we should throw
            throw;
        MultiTransact(msg.sender, _h, m_txs[_h].value, m_txs[_h].to, m_txs[_h].data);
        delete m_txs[_h];
        return true;
    }
}

// confirm a transaction through just the hash. we use the previous transactions map, m_txs, in order
// to determine the body of the transaction from the hash provided.