// EMERGENCYNET IoT - VERSAO MINIMA
// Arduino Uno - Wokwi

#define LED_R 6
#define LED_G 9  
#define LED_B 10
#define LED_SIREN 11
#define LED_COMM 12

int state = 0;
unsigned long timer = 0;
int emergencies = 0;

void setup() {
  Serial.begin(9600);
  
  pinMode(LED_R, OUTPUT);
  pinMode(LED_G, OUTPUT);
  pinMode(LED_B, OUTPUT);
  pinMode(LED_SIREN, OUTPUT);
  pinMode(LED_COMM, OUTPUT);
  
  Serial.println("EmergencyNet Started");
  timer = millis();
}

void loop() {
  unsigned long now = millis();
  
  // Mudar estado a cada 3 segundos
  if (now - timer > 3000) {
    state++;
    if (state > 3) {
      state = 0;
      emergencies++;
    }
    timer = now;
    printState();
  }
  
  // Controlar LEDs
  controlLEDs();
  
  delay(100);
}

void controlLEDs() {
  // Apagar todos primeiro
  digitalWrite(LED_R, LOW);
  digitalWrite(LED_G, LOW);
  digitalWrite(LED_B, LOW);
  digitalWrite(LED_SIREN, LOW);
  digitalWrite(LED_COMM, LOW);
  
  bool blink = (millis() % 500) < 250;
  
  switch(state) {
    case 0: // STANDBY
      // Tudo apagado
      break;
      
    case 1: // EMERGENCY
      digitalWrite(LED_R, HIGH);
      if (blink) digitalWrite(LED_SIREN, HIGH);
      break;
      
    case 2: // COMMUNICATING
      digitalWrite(LED_B, HIGH);
      if (blink) digitalWrite(LED_COMM, HIGH);
      break;
      
    case 3: // CONTROLLED
      digitalWrite(LED_G, HIGH);
      break;
  }
}

void printState() {
  Serial.print("State: ");
  Serial.print(state);
  Serial.print(" | Emergencies: ");
  Serial.print(emergencies);
  Serial.print(" | Time: ");
  Serial.println(millis()/1000);
  
  // JSON simples
  Serial.print("{\"state\":");
  Serial.print(state);
  Serial.print(",\"count\":");
  Serial.print(emergencies);
  Serial.println("}");
}