/*

Acryl Sign
  by smi1100 - 12/09/2022
    
pins:
  LED: 6
  Buttons: 8, 9
  
libraries:
  - Adafruit_NeoPixel.h
  
*/


#include <Adafruit_NeoPixel.h>
#define LED_PIN    6                      // Which pin on the Arduino is connected to the NeoPixels?
#define LED_COUNT 8                       // How many NeoPixels are attached to the Arduino?
Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

const int buttonPin_front = 8;
boolean oldButtonState_front = HIGH;
boolean newButtonState_front;
int strip_color_front = 1;

const int buttonPin_back = 9;
boolean oldButtonState_back = HIGH;
boolean newButtonState_back;
int strip_color_back = 1;

void setup()
{  
  Serial.begin(9600);
  strip.begin();
  strip.show(); 
  strip.setBrightness(255);                // Set BRIGHTNESS to about 1/5 (max = 255)

  pinMode(buttonPin_front, INPUT_PULLUP);
  pinMode(buttonPin_back, INPUT_PULLUP);
  
  Serial.println("Setup complete");
  Serial.println("");
  delay(500);
}

void loop()
{
  newButtonState_front = digitalRead(buttonPin_front);
  
  if((newButtonState_front == LOW) && (oldButtonState_front == HIGH))   // Button not pressed = LOW
  {
    delay(20);                            // Short delay to debounce button.
    newButtonState_front = digitalRead(buttonPin_front); // Check if button is still low after debounce.
    
    if(newButtonState_front == LOW) // Yes, still low
              // einschalten (new = 0, old = 1)
              // zu Beginn wird die if Schleife aktiviert und die erste Farbe angezeigt
              // am Ende der Schleife old = new (new = 0, old = 0)
              // Knopf gedrückt (if Schleife nicht durchlaufen (new = 1, old = 0)
              // am Ende der Schleife old = new (new = 1, old = 1) - if Schleife nicht durchlaufen
              // Knopf loslassen(new = 0, old = 1) -> If Schleife durchlaufen, Farbe ändert sich
    {
        if(strip_color_front > 8) strip_color_front = 1;
        Serial.print("strip color front number: "); Serial.println(strip_color_front);
        switch (strip_color_front)
        {
          case 1:
            Serial.println("Strip color front RED");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
            break;  
    
          case 2:
            Serial.println("Strip color front GREEN");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 0, 255, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
            break;  
    
          case 3:
            Serial.println("Strip color front BLUE");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 0, 0, 255);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break; 
        
          case 4:
            Serial.println("Strip color front WHITE");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 255, 255, 255);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break;

          case 5:
            Serial.println("Strip color front PINK");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 255, 20, 147);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break; 

          case 6:
            Serial.println("Strip color front YELLOW");
            Serial.println("");
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 255, 215,0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break;        
        
          case 7:
            Serial.println("Strip color front rainbow");
            Serial.println("");
            for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256)
            {
              strip.rainbow(firstPixelHue);
              strip.show();
              Serial.print("firstPixelHue: ");Serial.println(firstPixelHue);
              delay(10);
              if (firstPixelHue == 327168) firstPixelHue = 0;
              
              newButtonState_front = digitalRead(buttonPin_front);
              newButtonState_back = digitalRead(buttonPin_back);
              if(newButtonState_front == HIGH || newButtonState_back == HIGH)
              {
                for (int i = 0; i <= 3;i++)
                {
                  strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
                }
                strip.show();
                   
                for (int i = 4; i <= 7;i++)
                {
                  strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
                }
                strip.show();
                strip_color_back = 1;
                                
                break;
              }
            }
            break;
        
        
          case 8:
            Serial.println("Strip color front color wipe");
            Serial.println("");
            int stopper = 0;
            while (stopper == 0)
            { 
              Serial.print("Stopper: ");Serial.println(stopper);
              for(int i=0; i<strip.numPixels(); i++)
              { 
                strip.setPixelColor(i, 255,   0,   0);         
                strip.show();
                newButtonState_front = digitalRead(buttonPin_front);
                newButtonState_back = digitalRead(buttonPin_back);
                if(newButtonState_front == HIGH || newButtonState_back == HIGH)
                {
                  stopper = 1;
                  break;
                }
                delay(200);                           
              }
              
              for(int i=0; i<strip.numPixels(); i++)
              { 
                strip.setPixelColor(i,   0, 255,   0);         
                strip.show();
                newButtonState_front = digitalRead(buttonPin_front);
                newButtonState_back = digitalRead(buttonPin_back);
                if(newButtonState_front == HIGH || newButtonState_back == HIGH)
                {
                  stopper = 1;
                  break;
                }
                delay(200);                           
              }
              
              for(int i=0; i<strip.numPixels(); i++)
              { 
                strip.setPixelColor(i,  0,   0, 255);         
                strip.show();
                newButtonState_front = digitalRead(buttonPin_front);
                newButtonState_back = digitalRead(buttonPin_back);
                if(newButtonState_front == HIGH || newButtonState_back == HIGH)
                {
                  stopper = 1;
                  break;
                }
                delay(200);                           
              }
              
              
            }  
            for (int i = 0; i <= 3;i++)
            {
              strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
               
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
            strip_color_back = 1;
            
            
            break;

        } // end of switch
        
        strip_color_front++;
    }
    
  }
  oldButtonState_front = newButtonState_front;


  newButtonState_back = digitalRead(buttonPin_back);
    
  if((newButtonState_back == LOW) && (oldButtonState_back == HIGH))
  {
    delay(20);
    newButtonState_back = digitalRead(buttonPin_back);
    
    if(newButtonState_back == LOW)             
    {
        if(strip_color_back > 6) strip_color_back = 1;
        Serial.print("strip color back number: "); Serial.println(strip_color_back);
        switch (strip_color_back)
        {
          case 1:
            Serial.println("Strip color back RED");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 255, 0, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
            break;  
    
          case 2:
            Serial.println("Strip color back GREEN");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 0, 255, 0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show();
            break;  
    
          case 3:
            Serial.println("Strip color back BLUE");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 0, 0, 255);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break; 
        
          case 4:
            Serial.println("Strip color back WHITE");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 255, 255, 255);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break;

          case 5:
            Serial.println("Strip color back PINK");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 255, 20, 147);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break; 

          case 6:
            Serial.println("Strip color back YELLOW");
            Serial.println("");
            for (int i = 4; i <= 7;i++)
            {
              strip.setPixelColor(i, 255, 215,0);    //strip.setPixelColor(n, red, green, blue);
            }
            strip.show(); 
            break;        
        }
        strip_color_back++;
    }
  }
  oldButtonState_back = newButtonState_back;
}

void colorWipe(uint32_t color, int wait)
{
  for(int i=0; i<strip.numPixels(); i++)
  { 
    strip.setPixelColor(i, color);         
    strip.show();                          
    delay(wait);                           
  }
}