/*
Author: Gregor Mausser
Titel: Home LED
Technical Data:
ESP32 C3
*/

//include NeoPixel Bibliothek
#include <Adafruit_NeoPixel.h>

const int LEDStripPin1 = 1;   //Pin for the LED-Strip 
int LEDPixels = 40;           //Number of pixels the LED-Stripe has. 
//If you have two or more LED-strips chained together you have to add the number of pixels.
const int ButtonPin = 2;      //Pin for the Button
int mode = 0;                 //in which mode the LED-strip is
bool lastReading = HIGH;     
bool stableState = HIGH;     
unsigned long lastDebounceTime = 0;         
const unsigned long debounceDelay = 30;  

//create NeoPixel object
Adafruit_NeoPixel strip(LEDPixels, LEDStripPin1, NEO_GRB + NEO_KHZ800); //Number of Pixels, Datapin, colorformate + signalspeed

//uint8_t and int8_t are 8 Bit numbers without sign (-/+) 
uint8_t brightness = 0;   //brightness 0-255
int8_t direction = 1;     //brighter = 1, darker = -1

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32-C3!");
  pinMode(ButtonPin, INPUT_PULLUP);   //defines if the Button is an input or an output
  strip.begin();  //initializeing LED-strip
  strip.show();   //turns off all LEDs
}

void loop() {
  bool reading = digitalRead(ButtonPin);

  if (reading != lastReading) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != stableState) {
      stableState = reading;

      if (stableState == LOW) {    
        mode++;
        Serial.println(mode);
        /*
          Code hier einfügen
          Code hier einfügen
          Code hier einfügen
        */
      }
    }
  }
  lastReading = reading;

    switch(mode)  {
      case 1:
        brightness += direction * 3;
        
        if (brightness >= 255)  {
          Serial.println("Welcome");
        }
        for (int i = 0; i < LEDPixels; i++) {
        strip.setPixelColor(i, strip.Color(255, 255, 255));
        }
        strip.show();
        delay(30);
        break;
      
      case 2:
        for (int i = 0; i < LEDPixels; i++) {
        strip.setPixelColor(i, strip.Color(255, 0, 0));
        }
        strip.show();
        delay(30);
        break;

        case 3:
        for (int i = 0; i < LEDPixels; i++) {
        strip.setPixelColor(i, strip.Color(0, 255, 0));
        }
        strip.show();
        delay(30);
        break;

        case 4:
        for (int i = 0; i < LEDPixels; i++) {
        strip.setPixelColor(i, strip.Color(0, 0, 255));
        }
        strip.show();
        delay(30);
        break;

/*
      default:
        mode = 4;
        Serial.println("Error");
*/


    
    }


}