// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>


//Important
#define PIXEL_PIN D2
#define PIXEL_COUNT 16
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel strip = Adafruit_NeoPixel( PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE );


int durationOfFade = 10000; //* 60 * 5;
int durationOfTransition = 20000; //* 60 * 10;
int durationOfOut = 10000; //* 60 * 5; 

//int durationFadeOut = 10000;

int maxLight = 200;

long timeStartedAt = -1; //when the action happens
bool timerStarter = false;
long fadeUpValue = 1;


void setup() {

    strip.begin();
    strip.show();
    Serial.begin(9600);
    
    Particle.function( "fadeUp", handleFadeUp );
    Particle.function( "stopNotication", handleStopNoti);
    
}

void loop() {
    
    // buttonState = digitalRead ( buttonPin ); //get the value 

    // if( buttonState == LOW ){

    //     if( timerStarter  == false ){
            
    //         timerStarter = true;
            
    //     } else {
        
    //         timerStarter  = false;
        
    //     }
    // }
    
    if( timerStarter == true ){
        
        long timeNow = millis();
        
        long timeElapsed = timeNow - timeStartedAt;
        
        if( timeElapsed < durationOfFade ){
            
            int colorValue = map( timeElapsed, 0, durationOfFade, 0,  maxLight );
            
            int r = 0;
            int g = colorValue;
            int b = 0;
            
            for( int i = 0; i < strip.numPixels(); i++ ){
                
                strip.setPixelColor(i, r, g, b);
                
            }
            
            
            Serial.print(timeElapsed);
            Serial.print("      ");
            Serial.println("phase1");
            
            strip.show();
                
        } else if( timeElapsed > durationOfFade and timeElapsed < (durationOfFade + durationOfTransition/2) ){
        
            int colorMap = timeElapsed - durationOfFade;  
            int colorValue1 = map( colorMap, 0, durationOfTransition/2, maxLight, 0);
            int colorValue2 = 0; //map( colorMap, 0, durationOfTransition/2, 0, 10);
            
            int r = colorValue2;
            int g = colorValue1;
            int b = 0;
            
            for( int i = 0; i < strip.numPixels(); i++ ){
                
                strip.setPixelColor(i, r, g, b);    
                
            }
            
            Serial.print(timeElapsed);
            Serial.print("      ");
            Serial.println("phase2");
            
            strip.show();
                
        } else if( timeElapsed > (durationOfFade + durationOfTransition/2) and timeElapsed < (durationOfFade + durationOfTransition) ){
        
            int colorMap = timeElapsed - (durationOfFade + durationOfTransition/2);  
            int colorValue2 = map( colorMap, 0, durationOfTransition/2,  0, maxLight);
            
            int r = colorValue2;
            int g = 0;
            int b = 0;
            
            for( int i = 0; i < strip.numPixels(); i++ ){
                
                strip.setPixelColor(i, r, g, b);    
                
            }
            
            Serial.print(timeElapsed);
            Serial.print("      ");
            Serial.println("phase3");
            
            strip.show();
                
        } else if ( timeElapsed > (durationOfFade + durationOfTransition) and timeElapsed < (durationOfFade + durationOfTransition + durationOfOut)){
            
            int colorMap = timeElapsed - (durationOfFade + durationOfTransition);  
            int colorValue = map( colorMap, 0, durationOfOut,  maxLight, 0);
            
            int r = colorValue;
            int g = 0;
            int b = 0;
            
            for( int i = 0; i < strip.numPixels(); i++ ){
                
                strip.setPixelColor(i, r, g, b);   
                
            }  
            
            Serial.print(timeElapsed);
            Serial.print("      ");
            Serial.println("phase4");
            
            strip.show();
            
        } else {
            
            timerStarter = false;
            
        }  
            
    } else {
      
        int r = 0;
        int g = 0;
        int b = 0;
        
        for( int i = 0; i < strip.numPixels(); i++ ){
            
            strip.setPixelColor(i, r, g, b);    
            
        }
        strip.show();
    }
    

    
    delay( 500 );  
        
}


int handleFadeUp( String cmd ){
        
    timeStartedAt = millis();
    timerStarter = true;

    return fadeUpValue; 
}

int handleStopNoti( String cmd ){
    
    timerStarter = false;
    fadeUpValue = 0;

    return 1; 
}