String data;

// Gestion des LEDs
#include <FastLED.h>
#define DATA_PIN    9
//#define CLK_PIN   4
#define LED_TYPE    WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS    50
CRGB leds[NUM_LEDS];

#define BRIGHTNESS          50
#define FRAMES_PER_SECOND  300

void setup() {
    delay(3000); // Delai 3 secondes
    Serial.begin(9600);
    Serial.setTimeout(50);

    // Initialisatation des LEDs
    FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
    FastLED.setBrightness(BRIGHTNESS);
}

uint8_t gHue = 0; // Variable de modification de la couleur pour les LEDs en mode rainbow
bool eclairage = true;
int type = 0;
int rapiditeRainbow = 50;

void loop() {
  gestionLEDs();
  gestionMain();
}

void gestionLEDs() {
  if(eclairage == true) {
    switch(type) {
      case 0:
        rainbow();
        break;
    }
  }
}

void gestionMain() {
    while(Serial.available()) {
      data = Serial.readString();// read the incoming data as string
      Serial.println(data);
    }
    if (data == "light=on")
      eclairage = true;
    else if (data == "light=off") {
      eclairage = false;
      eteindreLEDs();
    }
}

void rainbow() {
  fill_rainbow( leds, NUM_LEDS, gHue, 7);
  FastLED.show(); // Afficher les mises à jour des LEDs
  FastLED.delay(1000/FRAMES_PER_SECOND); // Délai de mise à jour des LEDs
  EVERY_N_MILLISECONDS(rapiditeRainbow) { gHue++; } // Modification de la teinte des LEDs avec le mode rainbow
}

void eteindreLEDs() {
  for (int i = 0 ; i < NUM_LEDS ; ++i) {
    leds[i] = CRGB::Black;
  }
  FastLED.show();
}