#include <Adafruit_NeoPixel.h>

#define PIR_PIN 4
#define NEO_PIN 5
#define NUM_LEDS 16

Adafruit_NeoPixel ring(NUM_LEDS, NEO_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pinMode(PIR_PIN, INPUT);
  ring.begin();
  ring.setBrightness(50);
  ring.show(); 
  Serial.begin(115200);
}

void loop() {
  bool motion = digitalRead(PIR_PIN);

  if (motion) {
    // 🚨 STOLEN! Red Spinning Animation
    for(int i=0; i<NUM_LEDS; i++) {
      ring.setPixelColor(i, ring.Color(255, 0, 0)); 
      ring.show();
      delay(30);
      ring.setPixelColor(i, ring.Color(0, 0, 0));
    }
    Serial.println("Intruder Detected!");
  } else {
    // 😴 IDLE: Breathing Blue Effect
    for(int i=0; i<255; i++) {
      ring.fill(ring.Color(0, 0, i));
      ring.show();
      delay(5);
      if(digitalRead(PIR_PIN)) break; // Wake up immediately
    }
  }
}