/*
source:
https://wokwi.com/projects/378661442296684545
*/
#define led_VerdeP_Pin 9
#define led_VermelhoP_Pin 11
#define led_VerdeC_Pin 6
#define led_AmareloC_Pin 4
#define led_VermelhoC_Pin 13
//#define switchPin 2
const byte switchPin = 2;  

#define Sprintln(a) (Serial.println(a))
#define Sprint(a)   (Serial.print(a))

volatile int state = LOW;    
const long interval = 3000;
unsigned long previousMillis = 0;
unsigned long currentMillis =0;
unsigned long Timer_T1    = 500;     
unsigned long last_time_1 = 0;

void setup() {
  pinMode(led_VerdeP_Pin,OUTPUT); //declare LED as output
  pinMode(led_VermelhoP_Pin,OUTPUT); //declare LED as output

  //pinMode(switchPin,INPUT_PULLUP); //declare pushbutton as input

  pinMode(led_VerdeC_Pin,OUTPUT); //declare LED as output
  pinMode(led_AmareloC_Pin,OUTPUT); //declare pushbutton as input
  pinMode(led_VermelhoC_Pin,OUTPUT); //declare LED as output

  Serial.begin(115200); //Start serial debuging
  pinMode(switchPin, INPUT_PULLUP); //Set Interrupt pin
  attachInterrupt(digitalPinToInterrupt(switchPin), semaforo, FALLING);  //Attach Interrupt(FALLING/RISING)
}

void loop() {

  if(state==0){
    digitalWrite(led_VermelhoP_Pin,HIGH);
    digitalWrite(led_VerdeC_Pin,HIGH); 
    
    digitalWrite(led_VerdeP_Pin,LOW);
    digitalWrite(led_AmareloC_Pin,LOW);
    digitalWrite(led_VermelhoC_Pin,LOW);

   }  
  else if(state==1){
    delay(1000);
    digitalWrite(led_AmareloC_Pin,HIGH);
    digitalWrite(led_VerdeC_Pin,LOW); 

    delay(2000);
    digitalWrite(led_AmareloC_Pin,LOW);
    digitalWrite(led_VermelhoC_Pin,HIGH);
    digitalWrite(led_VermelhoP_Pin,LOW);
    digitalWrite(led_VerdeP_Pin,HIGH);
   
    delay(10000);
    currentMillis=millis();
    previousMillis=currentMillis;
    while( (currentMillis-previousMillis<interval)){

      digitalWrite(led_VerdeP_Pin,HIGH); //turn LED ON
      delay(500);
      digitalWrite(led_VerdeP_Pin,LOW); //turn LED OFF 
      delay(500);
     currentMillis = millis();
    }

    delay(3000);
    digitalWrite(led_VerdeP_Pin,LOW);
    digitalWrite(led_VermelhoP_Pin,HIGH);
    delay(1000);

    digitalWrite(led_VermelhoC_Pin,LOW); 
    digitalWrite(led_VerdeC_Pin,HIGH); 
    
    state=2;
    Sprint("8");
  }

  Sprint("state : ");
  Sprintln(state);
  delay(1000);
}


void semaforo()
{
 if((millis()-last_time_1) >= Timer_T1)          //Call timer interrupt millis() for check event time 250 mS
  {
    last_time_1 = millis();              
    //state ^= 1;   //Invest  variable stat
    state=1;
    Sprintln("semaforo");
  }




}