#include "ShadowScapesAnalysis.h"
#include "ofMain.h"

#include "Poco/Timer.h"
#include "Poco/Thread.h"
#include "RefractiveIndex.h"

#include "ofxOpenCv.h"

using Poco::Timer;
using Poco::TimerCallback;
using Poco::Thread;

#define STATE_SCAN      0
#define STATE_ANALYSIS  1

void ShadowScapesAnalysis::setup(int camWidth, int camHeight)
{
    NUM_RUN = 1;
    
    int acq_run_time = 15;   // 10 seconds of acquiring per run
    
    int screenSpan;
    if (_dir == V) screenSpan = ofGetHeight();
    if (_dir == H) screenSpan = ofGetWidth();
    if (_dir == D) screenSpan = ofGetHeight();
    
    _step = (screenSpan/acq_run_time)/(ofGetFrameRate());
            // pixel per frame = (pixels / sec) / (frame / sec)
    
    // 40 pixels per second should give us a 20 second scan at 800 pixels wide

    DELTA_T_SAVE = 3*(10*acq_run_time/2);   // for 20 seconds, we want this to be around 100 files
                                            // or 5 times per second = every 200 ms
        
    create_dir();  // this makes both synth and analysis folder structures

    _scanLineWidth = 100.0;
    _run_cnt = 0;
    _save_cnt = 0;
    _synth_save_cnt = 0;

    int anim_time = 10;   // 10 seconds
    _anim_cnt_max = anim_time*ofGetFrameRate();  // e.g.: 30 frames per second = 150 frames
    
    _show_image = false;
    _image_shown = false;
    
    //  images use for drawing the synthesized files to the screen ///
    image1.setUseTexture(false);  // the non texture image that is needed to first load the image
    image2.setUseTexture(true);   // the image that needs to get written to the screen which takes the content of image1
   
    //  images used for re-loading and saving out the synthesized files ///
    image3.setUseTexture(false);  
    image4.setUseTexture(false);
    image5.setUseTexture(false);
    
    //cout << "RefractiveIndex::_vid_w " << RefractiveIndex::_vid_w << endl;
    //cout << "RefractiveIndex::_vid_h " << RefractiveIndex::_vid_h << endl;
    
    cvColorImage1.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
	cvGrayImage1.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
    cvGrayDiff1.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
    
    cvColorImage2.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
	cvGrayImage2.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
    cvGrayDiff2.allocate(RefractiveIndex::_vid_w,RefractiveIndex::_vid_h);
    
}

void ShadowScapesAnalysis::acquire()
{
    _line = 0;
    
    // RUN ROUTINE
    for(int i = 0; i < NUM_RUN; i++) {
        
        Timer save_timer(0, DELTA_T_SAVE);  
        TimerCallback<ShadowScapesAnalysis> save_callback(*this, &ShadowScapesAnalysis::save_cb);
        
        _RUN_DONE = false;
        _frame_cnt = 0; _save_cnt = 0; _anim_cnt = 0;
        
        save_timer.start(save_callback);
        
        while(!_RUN_DONE && _state != STATE_STOP)
            Thread::sleep(3);
        
        save_timer.stop();
        
        _RUN_DONE = false;
    }

}

void ShadowScapesAnalysis::synthesise()
{
    //cout << "ShadowScapesAnalysis::saving synthesis...\n";
    
    for(float i=1;i<_saved_filenames_analysis.size()-1;i++){
    
      //  cout << "ShadowScapesAnalysis::synthesis FOR LOOP...\n";
        
        // cout << "_saved_filenames_analysis[i]" << _saved_filenames_analysis[i] << endl;
        
        if(_state == STATE_STOP) return;
                
        if(!image1.loadImage(_saved_filenames_analysis[i])){
            //couldn't load image
            cout << "didn't load image" << endl;
        } 
        
        if(image1.loadImage(_saved_filenames_analysis[i])){
            
            if(image5.loadImage(_saved_filenames_analysis[i+1])){
                
                ///////////////////////// PROCESS THE SAVED CAMERA IMAGES OF SHIT TO THE IMAGES //////////////////////////
                               
                cvColorImage1.setFromPixels(image1.getPixels(), image1.width, image1.height);
                cvColorImage2.setFromPixels(image5.getPixels(), image5.width, image5.height);
                
                cvGrayImage1 = cvColorImage1;
                cvGrayImage2 = cvColorImage2;
                
                cvGrayDiff1.absDiff(cvGrayImage2, cvGrayImage1);
                cvGrayDiff1.erode();
                cvGrayDiff1.contrastStretch();
                cvGrayDiff1.blur(5);
                cvGrayDiff1.dilate();
                cvGrayDiff1.contrastStretch();
                
                /////////////////////////////////// SAVE TO DISK IN THE SYNTHESIS FOLDER ////////////////////////////////
                string file_name;
                
                if(_dir == H) {
                    file_name = ofToString(_synth_save_cnt, 2)+"_H_ShadowScapesSynthesis"+ofToString(_run_cnt,2)+".jpg";
                }
                
                if(_dir == V) {
                    file_name = ofToString(_synth_save_cnt, 2)+"_V_ShadowScapesSynthesis"+ofToString(_run_cnt,2)+".jpg";
                }    
                
                if(_dir == D) {
                    file_name = ofToString(_synth_save_cnt, 2)+"_D_ShadowScapesSynthesis"+ofToString(_run_cnt,2)+".jpg";
                }
                
                //image4.setFromPixels(cvColorImage1.getPixelsRef(),image3.width, image3.height, OF_IMAGE_COLOR);
                
                ofSaveImage(cvGrayDiff1.getPixelsRef(),_whole_file_path_synthesis+"/"+file_name, OF_IMAGE_QUALITY_BEST);
                _saved_filenames_synthesis.push_back(_whole_file_path_synthesis+"/"+file_name);
                _synth_save_cnt++;
                
            }
        }
    }
    
    // _saved_filenames_synthesis has processed all the files in the analysis images folder
     while(!_RUN_DONE && _state != STATE_STOP)
        Thread::sleep(3);
}


void ShadowScapesAnalysis::displayresults()
{
    for(float i=1;i<_saved_filenames_synthesis.size();i++){
        
        if(_state == STATE_STOP) return;
        
       // cout << "_saved_filenames_analysis[i] - " << _saved_filenames_synthesis[i] << endl;
        
        while(!_image_shown){
            Thread::sleep(2);
            //cout << "!_image_shown" << endl;
        }
        
        if(!image3.loadImage(_saved_filenames_synthesis[i])){
            //couldn't load image
            cout << "didn't load image" << endl;
        } 
        
        if(image3.loadImage(_saved_filenames_synthesis[i])){
            image3.loadImage(_saved_filenames_synthesis[i]);
            //cout << "_show_image = true;" << endl;
            _show_image = true;
            _image_shown = false;
        }
    }
    
    
    // THE OLD SHIT /// 
/*
    for(float i=1;i<_saved_filenames_synthesis.size()-1;i++){
        
       // cout << "_saved_filenames_analysis[i]" << _saved_filenames_analysis[i] << endl;
        
        if(_state == STATE_STOP) return;
        
        while(!_image_shown){
            Thread::sleep(2);
            //cout << "!_image_shown" << endl;
        }
        
        if(!image1.loadImage(_saved_filenames_synthesis[i])){
            //couldn't load image
            cout << "didn't load image" << endl;
        } 
        
            
        if(image1.loadImage(_saved_filenames_analysis[i])){
            
            image1.loadImage(_saved_filenames_analysis[i]);
            cout << "loaded filenames[i] -  " << _saved_filenames_analysis[i] << endl;
        
            image2.setFromPixels(image1.getPixels(),image1.width,image1.height, OF_IMAGE_COLOR);
          
            //cout << "_show_image = true;" << endl;
            _show_image = true;
            _image_shown = false;

        }
    }
*/
    
}


// the animation draw - and the output draw
void ShadowScapesAnalysis::draw()
{
    
    switch (_state) {
        case STATE_ACQUIRING:
        {
            _line += _step;
            
            //cout << "* _line:" << _line << endl;
            
            if(_dir == V) {
                
                ofEnableAlphaBlending();
                
                ofSetColor(255, 255, 255);
                ofRect(0, (_line-2*_scanLineWidth), ofGetWidth(), _scanLineWidth);            
                
                for (float i=0; i<25; i++)
                { 
                    ofSetColor(255, 255, 255, i*5.0);
                    ofRect(0, (_line-2*_scanLineWidth)+(2*_scanLineWidth/(i+1)), ofGetWidth(), _scanLineWidth);
                    ofRect(0, (_line-2*_scanLineWidth)-(2*_scanLineWidth/(i+1)), ofGetWidth(), _scanLineWidth);
                }        
                
                ofDisableAlphaBlending();
                
            }
            
            if(_dir == H) {
                
                ofEnableAlphaBlending();
                
                ofSetColor(255, 255, 255);
                ofRect( (_line-2*_scanLineWidth), 0, _scanLineWidth, ofGetHeight());
                
                for (float i=0; i<25; i++)
                { 
                    ofSetColor(255, 255, 255, i*5);
                    ofRect( (_line-2*_scanLineWidth)+(2*_scanLineWidth/(i+1)), 0, _scanLineWidth, ofGetHeight());
                    ofRect( (_line-2*_scanLineWidth)-(2*_scanLineWidth/(i+1)), 0, _scanLineWidth, ofGetHeight());
                }        
                ofDisableAlphaBlending();
                
            }
            
            if(_dir == D) {
                
                ofEnableAlphaBlending();
                
                ofPushMatrix();  
                
                ofTranslate(-ofGetWidth(), 0);
                ofRotate(-45);
                
                ofSetColor(255, 255, 255);
                ofRect(0, (_line-_scanLineWidth)+ofGetHeight()-_scanLineWidth, 2*ofGetWidth(), _scanLineWidth);  
                
                for (float i=0; i<25; i++)
                { 
                    ofSetColor(255, 255, 255, i*5);
                    ofRect(0, (_line-_scanLineWidth)+ofGetHeight()-_scanLineWidth+(2*_scanLineWidth/(i+1)), 2*ofGetWidth(), _scanLineWidth);
                    ofRect(0, (_line-_scanLineWidth)+ofGetHeight()-_scanLineWidth-(2*_scanLineWidth/(i+1)), 2*ofGetWidth(), _scanLineWidth);
                }        
                
                ofPopMatrix();  
                ofDisableAlphaBlending();
            }
            
            
            if(_dir == V && int(_line) >= (ofGetHeight()+4*_scanLineWidth)){
                //cout << "VERTICAL IS DONE - _line >= (ofGetHeight()+4*_scanLineWidth) is TRUE" << endl;
                _RUN_DONE = true;
                
            }
            
            if(_dir == H && int(_line) >= (ofGetWidth()+4*_scanLineWidth)) {
                
                //cout << "HORIZONTAL IS DONE -  _line >= (ofGetWidth()+4*_scanLineWidth)) is TRUE" << endl;
                _RUN_DONE = true;
                
            }
            
            if(_dir == D && int(_line) >= (1.5*ofGetHeight()+4*_scanLineWidth)) {
                //cout << "DIAGONAL IS DONE - _line >= (1.5*ofGetHeight()+4*_scanLineWidth)) is TRUE" << endl;
            
                _RUN_DONE = true;
            }
        
            break;
        }
            
        case STATE_SYNTHESISING:
        {
           // cout << "ShadowScapesAnalysis = STATE_SYNTHESISING...\n";

            // display animation of something while the synthesis in on-going...
            ofEnableAlphaBlending();
            ofSetRectMode(OF_RECTMODE_CENTER);
            ofPushMatrix();
            ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
            
            if(_anim_cnt < _anim_cnt_max){
                
                ofColor aColour;
                int rectSizeW = ofGetWidth()/4;
                int rectSizeH = ofGetHeight()/4;
                int _fade_in_frames = _anim_cnt_max/2;
                
                int c_anim = 10;
                int fade;
                
                //ofRotate(ofMap(_anim_cnt/2.0, 0, _anim_cnt_max, 0, 360));
                         
                if (_anim_cnt < _fade_in_frames) {
                  //  cout << "ShadowScapesAnalysis STATE_SYNTHESIZING = FADING IN ANIMATION...\n";
                
                    fade = ofMap(_anim_cnt, 0, _fade_in_frames, 0, 255);
                
                    for (int i=0; i <= 15; i++){
                        c_anim = 0+17*i;
                        
                        aColour.set(c_anim, c_anim, c_anim, fade);
                        ofSetColor(aColour);
                        
                        ofRect(0, 0, rectSizeW+10*i, rectSizeH+10*i);
                        ofRect(0, 0, rectSizeW-10*i, rectSizeH-10*i);
                    }
                }
            
                if (_anim_cnt >= _fade_in_frames && _anim_cnt <= (_anim_cnt_max-_fade_in_frames)){
                    
                    for (int i=0; i <= 15; i++){
                        c_anim = 255;
                        aColour.set(c_anim, c_anim, c_anim, 255);
                        ofSetColor(aColour);
                        
                        ofRect(0, 0, rectSizeW+10*i, rectSizeH+10*i);
                        ofRect(0, 0, rectSizeW-10*i, rectSizeH-10*i);
                    }
                }
                
                if (_anim_cnt > (_anim_cnt_max-_fade_in_frames) && _anim_cnt <= _anim_cnt_max) {
                    
                    cout << "_anim_cnt = " << _anim_cnt-(_anim_cnt_max-_fade_in_frames) << endl;
                    fade = ofMap(_anim_cnt-(_anim_cnt_max-_fade_in_frames), 0, _fade_in_frames, 0, 255);
                    cout << "fade down = " << fade << endl;
                   
                    for (int i=0; i <= 15; i++){
                        
                        c_anim = (17*i);
                        
                        aColour.set(c_anim, c_anim, c_anim, 255-fade);
                        ofSetColor(aColour);
                        ofRect(0, 0, rectSizeW+10*i, rectSizeH+10*i);
                        ofRect(0, 0, rectSizeW-10*i, rectSizeH-10*i);
                    }
        
                }
                _anim_cnt++;
                
            } else {
                _RUN_DONE = true;
                _anim_cnt=0;
            }
            ofPopMatrix();
            ofSetRectMode(OF_RECTMODE_CORNER);
            ofDisableAlphaBlending();
            break;
      
        }
            
        case STATE_DISPLAY_RESULTS:
        {
            //cout << "STATE_DISPLAY_RESULTS...\n" << endl;

            
            if (_frame_cnt > 2)
            {
                _image_shown = true;
                _frame_cnt=0;
            }
            
            _frame_cnt++;
            
            if (_show_image)
            {  
              //  cout << "_show_image...\n" << endl;
                
                ofEnableAlphaBlending();
                
                    ofSetColor(255, 255, 255);
                    image2.setFromPixels(image3.getPixels(),image3.width,image3.height, OF_IMAGE_GRAYSCALE);
                    image2.draw(0,0, ofGetWidth(), ofGetHeight());
                
                ofDisableAlphaBlending();
                
                //cvGrayDiff1.draw(0,0, ofGetWidth(), ofGetHeight());
                
                
                // THE OLD SHIT
                /*
                ofEnableAlphaBlending();
                
                ofSetColor(255, 255, 255, 200);
                image3.setFromPixels(image1.getPixels(),image1.width,image1.height, OF_IMAGE_COLOR);
                image4.setFromPixels(image2.getPixels(),image2.width,image2.height, OF_IMAGE_COLOR);
                                
                cvColorImage1.setFromPixels(image3.getPixels(), image3.width, image3.height);
                cvColorImage2.setFromPixels(image4.getPixels(), image4.width, image4.height);
                
                cvGrayImage1 = cvColorImage1;
                cvGrayImage2 = cvColorImage2;
                
                cvGrayDiff1.absDiff(cvGrayImage2, cvGrayImage1);
                cvGrayDiff1.contrastStretch();
                cvGrayDiff1.dilate();
                
                cvGrayDiff1.draw(0,0, ofGetWidth(), ofGetHeight());
                
                ofDisableAlphaBlending();            
                */     
                
                //image2.draw(0,0, ofGetWidth(), ofGetHeight());
                
            }
            
            // display results of the synthesis
            _RUN_DONE = true;
            break;
        }
            
        default:
            break;
    }        

}


void ShadowScapesAnalysis::save_cb(Timer& timer)
{
    
    _save_cnt++;
    
    RefractiveIndex::_vidGrabber.grabFrame();  // get a new frame from the camera
    
    if (RefractiveIndex::_vidGrabber.isFrameNew())
    {
        RefractiveIndex::_pixels = RefractiveIndex::_vidGrabber.getPixelsRef(); //get ofPixels from the camera
    } else {
        return;
    }
    
    //cout << "ShadowScapesAnalysis::saving analysis...\n";
    
    string file_name;
    
    if(_dir == H) {
        file_name = ofToString(_save_cnt, 2)+"_H_"+ofToString(_line, 2)+"_"+ofToString(_run_cnt,2)+".jpg";
    }
    
    if(_dir == V) {
        file_name = ofToString(_save_cnt, 2)+"_V_"+ofToString(_line, 2)+"_"+ofToString(_run_cnt,2)+".jpg";
    }
    
    if(_dir == D) {
        file_name = ofToString(_save_cnt, 2)+"_D_"+ofToString(_line, 2)+"_"+ofToString(_run_cnt,2)+".jpg";
    }
    
    ofSaveImage(RefractiveIndex::_pixels, _whole_file_path_analysis+"/"+file_name, OF_IMAGE_QUALITY_BEST);
    
    _saved_filenames_analysis.push_back(_whole_file_path_analysis+"/"+file_name);
    
}