#include "Arduino.h"  
#include <FastLED.h>

#define NUM_LEDS 32
#define DATA_PIN_L 2
#define DATA_PIN_R 3

#define TurnRight 5  
#define TurnLeft 7
#define DRLsignal 10 

CRGB leds[NUM_LEDS];

int BlinkerSpeed = 20; //Turn Signal Running LED Speed. Adjust this to match with your vehicle turn signal speed.
int BlinkerOffDelay = 250; //Turn Signal Off time. Adjust this to match with your vehicle turn signal speed.
int HazardDelay = 700;


void setup() {
  FastLED.addLeds<WS2812, DATA_PIN_L, GRB>(leds, 0, 16);
  FastLED.addLeds<WS2812, DATA_PIN_R, GRB>(leds, 16, 16);

  pinMode(TurnRight, INPUT);  //1KΩ PULLDOWN  στο GND.
  pinMode(TurnLeft, INPUT);   //1KΩ PULLDOWN  στο GND.
  pinMode(DRLsignal, INPUT);  //1KΩ PULLDOWN  στο GND.
}

void loop() 
{
        // Turn on tail lights
   if((digitalRead(DRLsignal)==1))       
   {  DRLOn();  
   }
      else
   {   DRLOff();
   }


            // Blink right blinker                
   if((digitalRead(TurnRight)==1)&&(digitalRead(TurnLeft)==0))
   {      RightBlinker();
             delay (BlinkerOffDelay);
   }


            // Blink left blinker
   if((digitalRead(TurnLeft)==1)&&(digitalRead(TurnRight)==0))
   {       LeftBlinker();
              delay (BlinkerOffDelay);
   }


           // Hazards (Blink all 90 leds)
   if(((digitalRead(TurnRight)==1)&&(digitalRead(TurnLeft)==1))&&(digitalRead(DRLsignal)==1))    
   {   HazLghts();
   }

      if(((digitalRead(TurnRight)==1)&&(digitalRead(TurnLeft)==1))&&(digitalRead(DRLsignal)==0))
   {   Haz();
   }
         
}
   
          void LeftBlinker()
        {      
            for (int l = 32; l  >= 016; l--)
          {
            leds[l] = CRGB(255, 192, 0);

            FastLED.show(l);
            delay (BlinkerSpeed);
          }     
        }

        
          void RightBlinker()
        {
            for (int r = 0; r  < 16; r++)
          {
            leds[r] = CRGB(255, 192, 0);

            FastLED.show(r);
            delay (BlinkerSpeed);
          }
        }


          void HazLghts()
        {       fill_solid(&leds[0], 32, CRGB(255,192,0));
                      FastLED.show();
                      delay(HazardDelay);
                  fill_solid(&leds[0], 32, CRGB::Red);
                      FastLED.show();
                      delay(HazardDelay);
        } 


          void Haz() 
        {       fill_solid(&leds[0],32, CRGB(255,192,0));
                        FastLED.show();
                        delay(HazardDelay); 
                  fill_solid(&leds[0], 32, CRGB(0,0,0));
                        FastLED.show();
                        delay(HazardDelay);
        }


          void DRLOn() 
        {     fill_solid(&leds[0], 32, CRGB (255,0,0));
                  FastLED.show();
        }


          void DRLOff() 
        {     fill_solid(&leds[0], 32, CRGB (0,0,0));
                  FastLED.show(); 
        }