#include <sstream>
#include "ClassFlowMQTT.h"
#include "Helper.h"

#include "time_sntp.h"
#include "interface_mqtt.h"
#include "ClassFlowPostProcessing.h"

#include <time.h>

void ClassFlowMQTT::SetInitialParameter(void)
{
    uri = "";
    topic = "";
    topicError = "";
    topicRate = "";
    topicTimeStamp = "";
    maintopic = "";
    mainerrortopic = ""; 

    topicUptime = "";
    topicFreeMem = "";
    clientname = "watermeter";
    OldValue = "";
    flowpostprocessing = NULL;  
    user = "";
    password = "";   
    previousElement = NULL;
    ListFlowControll = NULL; 
    disabled = false;
    MQTTenable = false;
    
    

}       

ClassFlowMQTT::ClassFlowMQTT()
{
    SetInitialParameter();
}

ClassFlowMQTT::ClassFlowMQTT(std::vector<ClassFlow*>* lfc)
{
    SetInitialParameter();

    ListFlowControll = lfc;
    for (int i = 0; i < ListFlowControll->size(); ++i)
    {
        if (((*ListFlowControll)[i])->name().compare("ClassFlowPostProcessing") == 0)
        {
            flowpostprocessing = (ClassFlowPostProcessing*) (*ListFlowControll)[i];
        }
    }
}

ClassFlowMQTT::ClassFlowMQTT(std::vector<ClassFlow*>* lfc, ClassFlow *_prev)
{
    SetInitialParameter();

    previousElement = _prev;
    ListFlowControll = lfc;

    for (int i = 0; i < ListFlowControll->size(); ++i)
    {
        if (((*ListFlowControll)[i])->name().compare("ClassFlowPostProcessing") == 0)
        {
            flowpostprocessing = (ClassFlowPostProcessing*) (*ListFlowControll)[i];
        }
    }
}


bool ClassFlowMQTT::ReadParameter(FILE* pfile, string& aktparamgraph)
{
    std::vector<string> zerlegt;

    aktparamgraph = trim(aktparamgraph);

    if (aktparamgraph.size() == 0)
        if (!this->GetNextParagraph(pfile, aktparamgraph))
            return false;

    if (toUpper(aktparamgraph).compare("[MQTT]") != 0)       // Paragraph passt nich zu MakeImage
        return false;

    while (this->getNextLine(pfile, &aktparamgraph) && !this->isNewParagraph(aktparamgraph))
    {
        zerlegt = this->ZerlegeZeile(aktparamgraph);
        if ((toUpper(zerlegt[0]) == "USER") && (zerlegt.size() > 1))
        {
            this->user = zerlegt[1];
        }  
        if ((toUpper(zerlegt[0]) == "PASSWORD") && (zerlegt.size() > 1))
        {
            this->password = zerlegt[1];
        }               
        if ((toUpper(zerlegt[0]) == "URI") && (zerlegt.size() > 1))
        {
            this->uri = zerlegt[1];
        }

        if ((toUpper(zerlegt[0]) == "CLIENTID") && (zerlegt.size() > 1))
        {
            this->clientname = zerlegt[1];
        }

        if (((toUpper(zerlegt[0]) == "TOPIC") || (toUpper(zerlegt[0]) == "MAINTOPIC")) && (zerlegt.size() > 1))
        {
            maintopic = zerlegt[1];
        }
    }

    if (!MQTTisConnected() && (uri.length() > 0) && (maintopic.length() > 0)) 
    {
        mainerrortopic = maintopic + "/connection";
        MQTTInit(uri, clientname, user, password, mainerrortopic, 60); 
        MQTTPublish(mainerrortopic, "connected");
        MQTTenable = true;
    }
   
    return true;
}


bool ClassFlowMQTT::doFlow(string zwtime)
{
    if (!MQTTenable)
        return true;

    std::string result;
    std::string resulterror = "";
    std::string resultrate = "";
    std::string resulttimestamp = "";
    string zw = "";
    string namenumber = "";

    MQTTPublish(mainerrortopic, "connected");
    
    zw = maintopic + "/" + "uptime";
    char uptimeStr[11];
    sprintf(uptimeStr, "%ld", (long)getUpTime());
    MQTTPublish(zw, uptimeStr);

    zw = maintopic + "/" + "freeMem";
    char freeheapmem[11];
    sprintf(freeheapmem, "%zu", esp_get_free_heap_size());
    MQTTPublish(zw, freeheapmem);

    if (flowpostprocessing)
    {
        std::vector<NumberPost*> NUMBERS = flowpostprocessing->GetNumbers();

        for (int i = 0; i < NUMBERS.size(); ++i)
        {
            result =  NUMBERS[i]->ReturnValueNoError;
            resulterror = NUMBERS[i]->ErrorMessageText;
            resultrate = std::to_string(NUMBERS[i]->FlowRateAct);
            resulttimestamp = NUMBERS[i]->timeStamp;

            namenumber = NUMBERS[i]->name;
            if (namenumber == "default")
                namenumber = maintopic + "/";
            else
                namenumber = maintopic + "/" + namenumber + "/";

            zw = namenumber + "value";    
            MQTTPublish(zw, result);

            zw = namenumber + "error";    
            MQTTPublish(zw, resulterror, 1);

            zw = namenumber + "rate";    
            MQTTPublish(zw, resultrate);

            zw = namenumber + "timestamp";
            MQTTPublish(zw, resulttimestamp);


            std::string json="{\"value\":"+result;
            json += ",\"error\":\""+resulterror;
            json += "\",\"rate\":"+resultrate;
            json += ",\"timestamp\":\""+resulttimestamp+"\"}";

            zw = namenumber + "json";
            MQTTPublish(zw, json);
        }
    }
    else
    {
        for (int i = 0; i < ListFlowControll->size(); ++i)
        {
            zw = (*ListFlowControll)[i]->getReadout();
            if (zw.length() > 0)
            {
                if (result.length() == 0)
                    result = zw;
                else
                    result = result + "\t" + zw;
            }
        }
        MQTTPublish(topic, result);
    }
    
    OldValue = result;
    
    return true;
}