const int ledPin = A2;
const int trigPin = A5;
const int echoPin = A0;
const int ledRouge = LED_BUILTIN;
const int ledOrange = A3;
const int PIN_BUTTON = A0;
const int BUZZER = A1;
const int SHCP=11;
const int STCP=10;
const int DS=13;
void displayDistance(float distance) {
  // Séparer les chiffres après la virgule
  int whole = int(distance);
  int decimal = int((distance - whole) * 10);
// const int MR=9;
byte segments[] = {
    B01111110,  // 0
    B00110000,  // 1
    B01101101,  // 2
    B01111001,  // 3
    B00110011,  // 4
    B01011011,  // 5
    B01011111,  // 6
    B01110000,  // 7
    B01111111,  // 8
    B01111011   // 9
};
  digitalWrite(STCP, LOW);
  shiftOut(DS, SHCP, MSBFIRST, segments[0]);
  shiftOut(DS, SHCP, MSBFIRST, segments[0]);
  digitalWrite(STCP, HIGH);
  // digitalWrite(STCP, LOW);
  // digitalWrite(DS, LOW); // Éteindre le point décimal
  // digitalWrite(STCP, HIGH);

//   // Envoyer les données pour le deuxième afficheur (chiffre après la virgule)
//   digitalWrite(STCP, LOW);
//   shiftOut(DS, SHCP, MSBFIRST, segments[decimal]);
//   digitalWrite(STCP, HIGH);
//   digitalWrite(STCP, LOW);
//   digitalWrite(DS, LOW); // Éteindre le point décimal
//   digitalWrite(STCP, HIGH);
}

int etatBouton = 0;

long duration, dis;
void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  pinMode(ledOrange, OUTPUT);
  pinMode(ledRouge, OUTPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(PIN_BUTTON, INPUT_PULLUP);
  pinMode(BUZZER, OUTPUT);
  
  pinMode(SHCP, OUTPUT);
  pinMode(STCP, OUTPUT);
  pinMode(DS, OUTPUT);
  digitalWrite(STCP, LOW);
  digitalWrite(STCP, HIGH);
  while(1);
}

void loop() {
  etatBouton = digitalRead(PIN_BUTTON);
  if (etatBouton == HIGH) {
    digitalWrite(ledRouge, LOW);
    digitalWrite(ledPin, LOW);
    digitalWrite(ledOrange, LOW);
    noTone(BUZZER);
    digitalWrite(BUZZER,LOW);
   
  } else {
   
    digitalWrite(trigPin, LOW);
    delayMicroseconds(2);
    digitalWrite(trigPin, HIGH);
    delayMicroseconds(10);
    int duration = pulseIn(echoPin, HIGH);
    float dis = duration / 58.0;  
    Serial.print("Distance en CM: ");
    Serial.println(dis);
    
    if (dis > 120) {
      digitalWrite(ledPin, HIGH);
      Serial.println("diode VERTE Allumé");
      noTone(BUZZER);
      digitalWrite(BUZZER,LOW);}
    else if (dis >=75 && dis <=120){
      digitalWrite(ledPin, LOW); 
      digitalWrite(ledOrange, HIGH);  
      digitalWrite(ledRouge, LOW); 
      tone(BUZZER, 440);
      delay(200);
      noTone(BUZZER);
      digitalWrite(BUZZER,LOW);
      Serial.print("Temps d'arrêt: ");
      Serial.print(map(dis, 75, 120, 500, 1000));
      Serial.println(" ms");
      delay(map(dis, 75, 120, 500, 1000));
    }
    else if (dis > 30 && dis <= 75) {
      digitalWrite(ledOrange, HIGH);
      Serial.println("diode Orange allumée");
      digitalWrite(BUZZER, HIGH);
      tone(BUZZER, 440); 
      delay(200);
      noTone(BUZZER);
      digitalWrite(BUZZER,LOW);
      Serial.print("Temps d'arrêt: ");
      Serial.print(map(dis, 30, 75, 0, 500));
      Serial.println(" ms");
      delay(map(dis, 30, 75, 0, 500));}

    else{
      digitalWrite(ledRouge, HIGH);
      Serial.println("diode Rouge allumée");
      tone(BUZZER,440);
      delay(200);
      digitalWrite(BUZZER,LOW);}
    } 
    displayDistance(dis);
}