annotate eventLogger.mm @ 8:e2c6cfe8c6b7

JSON logs and presets.

//
//  eventLogger.mm
//  oscSenderExample
//
//  Created by Robert Tubb on 05/11/2012.
//
//

//---------------------------------------------------------------------------
#include "eventLogger.h"


EventLogger eventLogger;
extern IViewController *iViewController;

//---------------------------------------------------------------------------
EventLogger::EventLogger(){

    loggingEnabled = true;
 
}
//---------------------------------------------------------------------------
void EventLogger::init(){
    
    readJsonToLog(ofxiPhoneGetDocumentsDirectory() + EVENT_LOG_FILENAME);
    sessionStartTime = ofGetSystemTime();

}
//---------------------------------------------------------------------------
void EventLogger::readJsonToLog(const string &jsonFile){
    Json::Value root;
    Json::Reader reader;
    
    
    ifstream theFile(jsonFile.c_str());
    stringstream fileText;
    string line;
    if(!theFile){
        cout<<"no event log file - first APP open\n";
        
        firstEverAppOpen();
        
        return;
    }else{
        
        while(theFile){
            theFile >> line;
            cout << line;
            fileText << line;
            
        }
        
        theFile.close();
    }
    
    bool parsingSuccessful = reader.parse( fileText.str(), root );
    
    if ( !parsingSuccessful )
    {
        // report to the user the failure and their locations in the document.
        std::cout  << "Failed to parse preset JSON\n"
        << reader.getFormattedErrorMessages();
        return;
    }
    
    // now put user deets into variables
    userName = root["userName"].asString();
    deviceID = root["deviceID"].asLargestInt();
    totalInteractionTime = root["totalInteractionTime"].asLargestInt();
    
    // check for unuploaded evts
    const Json::Value jlogs = root["events"];
    
    for ( int index = 0; index < jlogs.size(); ++index ) theEvents.push_back(lEvent(jlogs[index]));
    if(theEvents.size() > 5000){
        //try to upload
        attemptUpload();
    }
    // TODO if the total interaction time is greater than a certain amount && no questions answered - questionnaire time!
    
    // is there logged stuff that hasn't been uploaded yet?
    
    // don't actually need to load old ones unless uploading? or saving...
    //while(eventLogFile >> nextLine){
    
    //}
    
    //printAll();
    
}

//----------------------------------------------------------------------------

//---------------------------------------------------------------------------

void EventLogger::firstEverAppOpen(){
    deviceID = ofGetSystemTimeMicros();
    
    [iViewController showUserNamePrompt:23];
    
    totalInteractionTime = 0;
    
    
}
//---------------------------------------------------------------------------
// called from alertView OK in iViewController
void EventLogger::setUsername(const char *u){
    userName = u;

}

//---------------------------------------------------------------------------
// log zoom event
void EventLogger::logEvent(const leventType& evtType,const TwoVector& centre, const double& scale, const int& sliderID, const double& sliderVal){
    //cout << "log: " << evtType << "\n";
    
    // scroll has 2 double coords
    // zoom has 1 double scale
    // save preset has 2 coords
    // switch view has view type
    // slider change has int slider index and 1 int value
    
    // get time for key index
    
    // thinFactor
    if(!loggingEnabled) return;
    switch ( evtType ) {
        case SAVE_PRESET:
            theEvents.push_back(lEvent(evtType,centre.x,centre.y));
            // Code
            break;
        case SAVE_DESET:
            theEvents.push_back(lEvent(evtType,centre.x,centre.y));
            break;
        case SCROLL:
            theEvents.push_back(lEvent(evtType,centre.x,centre.y));
            break;
        case SCROLL_STOPPED:
            theEvents.push_back(lEvent(evtType,centre.x,centre.y));
            break;
        case ZOOM:
            theEvents.push_back(lEvent(evtType,scale));
            break;
        case CHANGE_SLIDER:
            theEvents.push_back(lEvent(evtType,sliderVal , 0.0 , sliderID));
            break;
        default:
            // Code
            break;
    }
    if(theEvents.size() > nextUploadQty){
        //try to upload
        attemptUpload();
    }
    sessionTime = (ofGetSystemTime() - sessionStartTime);
    
    
}
//---------------------------------------------------------------------------
// log slider event
void EventLogger::logEvent(const leventType& evtType,const int& sliderID, const double& sliderVal){
    if(!loggingEnabled) return;
    // sliderThinFactor
    switch ( evtType ) {
        case CHANGE_SLIDER:
            theEvents.push_back(lEvent(evtType,sliderVal , 0.0 , sliderID));
            break;
        default:
            // Code
            break;
    }
    if(theEvents.size() > nextUploadQty){
        //try to upload
        bool uploaded = attemptUpload();

    }
}
//---------------------------------------------------------------------------

bool EventLogger::attemptUpload(){
    bool uploaded;
    
    // do simple check of internet connection ?
    // if not connected return
    
    // if numlogs > 500000 show alert...
    
    if(!uploaded){
        // try later
        nextUploadQty += 5000;
    }else{
    
        // if success - clear memory
        theEvents.clear();
    }
    return uploaded;
    
}
//---------------------------------------------------------------------------
void EventLogger::sendHttp(){
    
    string url = "http://www.rootnot.co.uk/cgi-bin/zoomlogs.cgi";
    ofURLFileLoader fileLoader;
    ofHttpResponse resp;
    resp = fileLoader.get(url);
    cout << "HTTP STATUS  " << resp.status << "\n";
    cout << "HTTP ERROR  " << resp.error << "\n";
    cout << "HTTP DATA  " << resp.data << "\n";
}



//---------------------------------------------------------------------------

void EventLogger::exitAndSave(){
    totalInteractionTime = totalInteractionTime + (ofGetSystemTime() - sessionStartTime);
    // save user details
    string fname = ofxiPhoneGetDocumentsDirectory() + EVENT_LOG_FILENAME;

    Json::Value jlogs = logsToJson();
    // try to upload
    bool uploaded = attemptUpload();
    
    // write to file
    
    ofFile logFile(fname,ofFile::WriteOnly);

    logFile << jlogs;
    
}
//---------------------------------------------------------------------------

Json::Value EventLogger::logsToJson(){
    // put all logged events into Json formatted string
    Json::Value root;

    vector<lEvent>::iterator eventIter;
    
    root["userName"] = userName;
    root["deviceID"] = deviceID;
    root["totalInteractionTime"] = totalInteractionTime;
    
    int i = 0;
    for(eventIter = theEvents.begin(); eventIter < theEvents.end(); eventIter++){
        root["events"][i] = (*eventIter).eventToJson();
        i++;
    }
    
    return root;
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------