// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2013  The curecoin developer
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef _curecoinALERT_H_
#define _curecoinALERT_H_ 1

#include <set>
#include <string>

#include "uint256.h"
#include "util.h"


// static const char* pszMainKey = "0407c78740e67ab033220e1ca3a9e5dc0d0c19d631e211d6dbdef5c9f0df2761859d79b851ef65b1dd2596c8db15c3b0f79765804e66d2f62896f4b1351ce8840c";

// TestNet alerts pubKey
// static const char* pszTestKey = "0471dc165db490094d35cde15b1f5d755fa6ad6f2b5ed0f340e3f17f57389c3c2af113a8cbcc885bde73305a553b5640c83021128008ddf882e856336269080496";


class CNode;

/** Alerts are for notifying old versions if they become too obsolete and
 * need to upgrade.  The message is displayed in the status bar.
 * Alert messages are broadcast as a vector of signed data.  Unserializing may
 * not read the entire buffer if the alert is for a newer version, but older
 * versions can still relay the original data.
 */
class CUnsignedAlert
{
public:
    int nVersion;
    int64 nRelayUntil;      // when newer nodes stop relaying to newer nodes
    int64 nExpiration;
    int nID;
    int nCancel;
    std::set<int> setCancel;
    int nMinVer;            // lowest version inclusive
    int nMaxVer;            // highest version inclusive
    std::set<std::string> setSubVer;  // empty matches all
    int nPriority;

    // Actions
    std::string strComment;
    std::string strStatusBar;
    std::string strReserved;

    IMPLEMENT_SERIALIZE
    (
        READWRITE(this->nVersion);
        nVersion = this->nVersion;
        READWRITE(nRelayUntil);
        READWRITE(nExpiration);
        READWRITE(nID);
        READWRITE(nCancel);
        READWRITE(setCancel);
        READWRITE(nMinVer);
        READWRITE(nMaxVer);
        READWRITE(setSubVer);
        READWRITE(nPriority);

        READWRITE(strComment);
        READWRITE(strStatusBar);
        READWRITE(strReserved);
    )

    void SetNull();

    std::string ToString() const;
    void print() const;
};

/** An alert is a combination of a serialized CUnsignedAlert and a signature. */
class CAlert : public CUnsignedAlert
{
public:
    std::vector<unsigned char> vchMsg;
    std::vector<unsigned char> vchSig;

    CAlert()
    {
        SetNull();
    }

    IMPLEMENT_SERIALIZE
    (
        READWRITE(vchMsg);
        READWRITE(vchSig);
    )

    void SetNull();
    bool IsNull() const;
    uint256 GetHash() const;
    bool IsInEffect() const;
    bool Cancels(const CAlert& alert) const;
    bool AppliesTo(int nVersion, std::string strSubVerIn) const;
    bool AppliesToMe() const;
    bool RelayTo(CNode* pnode) const;
    bool CheckSignature() const;
    bool ProcessAlert();

    /*
     * Get copy of (active) alert object by hash. Returns a null alert if it is not found.
     */
    static CAlert getAlertByHash(const uint256 &hash);
};

#endif