#include "nlsr.hpp"
#include "nlsr_slh.hpp"
#include "security/nlsr_km.hpp"
#include "utility/nlsr_tokenizer.hpp"


namespace nlsr
{
    void
    SyncLogicHandler::createSyncSocket(Nlsr &pnlsr )
    {
        cout<<"Creating Sync socket ......"<<endl;
        cout<<"Sync prefix: "<<syncPrefix.toUri()<<endl;
        syncSocket=make_shared<SyncSocket>(syncPrefix, validator, syncFace,
                                           bind(&SyncLogicHandler::nsyncUpdateCallBack,this,
                                                _1, _2,boost::ref(pnlsr)),
                                           bind(&SyncLogicHandler::nsyncRemoveCallBack, this,
                                                _1,boost::ref(pnlsr)));
    }

    void
    SyncLogicHandler::nsyncUpdateCallBack(const vector<MissingDataInfo> &v,
                                          SyncSocket *socket, Nlsr& pnlsr)
    {
        cout<<"nsyncUpdateCallBack called ...."<<endl;
        int n = v.size();
        for(int i=0; i < n; i++)
        {
            std::cout<<"Data Name: "<<v[i].prefix<<" Seq: "<<v[i].high.getSeq()<<endl;
            processUpdateFromSync(v[i].prefix,v[i].high.getSeq(),pnlsr);
        }
    }

    void
    SyncLogicHandler::nsyncRemoveCallBack(const string& prefix, Nlsr& pnlsr)
    {
        cout<<"nsyncRemoveCallBack called ...."<<endl;
    }

    void
    SyncLogicHandler::removeRouterFromSyncing(string& routerPrefix)
    {
    }

    void
    SyncLogicHandler::processUpdateFromSync(std::string updateName,
                                            uint64_t seqNo,  Nlsr& pnlsr)
    {
        nlsrTokenizer nt(updateName,"/");
        string chkString("LSA");
        if( nt.doesTokenExist(chkString) )
        {
            //process LSA Update here
            string routerName=nt.getTokenString(nt.getTokenPosition(chkString)+1);
            processRoutingUpdateFromSync(routerName, seqNo, pnlsr);
        }
        chkString="keys";
        if( nt.doesTokenExist(chkString) )
        {
            //process keys update here
            processKeysUpdateFromSync(updateName,seqNo, pnlsr);
        }
    }

    void
    SyncLogicHandler::processRoutingUpdateFromSync(std::string routerName,
            uint64_t seqNo,  Nlsr& pnlsr)
    {
        if( routerName != pnlsr.getConfParameter().getRouterPrefix() )
        {
            SequencingManager sm(seqNo);
            cout<<sm;
            cout<<"Router Name: "<<routerName<<endl;
            if ( pnlsr.getLsdb().isNameLsaNew(routerName+"/1",sm.getNameLsaSeq()))
            {
                cout<<"Updated Name LSA. Need to fetch it"<<endl;
                string lsaPrefix=
                    pnlsr.getConfParameter().getChronosyncLsaPrefix() +
                    routerName + "/1/" +
                    boost::lexical_cast<std::string>(sm.getNameLsaSeq());
                pnlsr.getIm().expressInterest(pnlsr, lsaPrefix, 3,
                                              pnlsr.getConfParameter().getInterestResendTime());
            }
            if ( pnlsr.getLsdb().isAdjLsaNew(routerName+"/2",sm.getAdjLsaSeq()))
            {
                cout<<"Updated Adj LSA. Need to fetch it"<<endl;
                string lsaPrefix=
                    pnlsr.getConfParameter().getChronosyncLsaPrefix() +
                    routerName + "/2/" +
                    boost::lexical_cast<std::string>(sm.getAdjLsaSeq());
                pnlsr.getIm().expressInterest(pnlsr, lsaPrefix, 3,
                                              pnlsr.getConfParameter().getInterestResendTime());
            }
            if ( pnlsr.getLsdb().isCorLsaNew(routerName+"/3",sm.getCorLsaSeq()))
            {
                cout<<"Updated Cor LSA. Need to fetch it"<<endl;
                string lsaPrefix=
                    pnlsr.getConfParameter().getChronosyncLsaPrefix() +
                    routerName + "/3/" +
                    boost::lexical_cast<std::string>(sm.getCorLsaSeq());
                pnlsr.getIm().expressInterest(pnlsr, lsaPrefix, 3,
                                              pnlsr.getConfParameter().getInterestResendTime());
            }
        }
    }

    void
    SyncLogicHandler::processKeysUpdateFromSync(std::string certName,
            uint64_t seqNo, Nlsr& pnlsr)
    {
        string certNamePrefix=certName + "/" + boost::lexical_cast<string>(seqNo);
        pnlsr.getIm().expressInterest(pnlsr, certNamePrefix, 3,
                                      pnlsr.getConfParameter().getInterestResendTime());
    }

    void
    SyncLogicHandler::publishRoutingUpdate(SequencingManager& sm,
                                           string updatePrefix)
    {
        sm.writeSeqNoToFile();
        publishSyncUpdate(updatePrefix,sm.getCombinedSeqNo());
    }

    void
    SyncLogicHandler::publishKeyUpdate(KeyManager& km)
    {
        publishSyncUpdate(km.getRouterCertName().toUri(),km.getCertSeqNo());
    }

    void
    SyncLogicHandler::publishIdentityUpdate(string identityName)
    {
        publishSyncUpdate(identityName,0);
    }

    void
    SyncLogicHandler::publishSyncUpdate(string updatePrefix, uint64_t seqNo)
    {
        cout<<"Publishing Sync Update ......"<<endl;
        cout<<"Update in prefix: "<<updatePrefix<<endl;
        cout<<"Seq No: "<<seqNo<<endl;
        ndn::Name updateName(updatePrefix);
        string data("NoData");
        syncSocket->publishData(updateName,0,data.c_str(),data.size(),1000,seqNo);
    }

}