const int switchPin = 2;
const int ledPin = 13;
int buttonState;
int lightstate = 0;
int blinkstate = LOW;
long previousMillis = 0;
long interval = 1000;
unsigned long currentMillis = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(switchPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
  buttonState = digitalRead(switchPin);
}

void loop() {
  // put your main code here, to run repeatedly:
  int val = digitalRead(switchPin);
  delay(10);
  int val2 = digitalRead(switchPin);
  if(val == val2){
    if (val != buttonState) {        // change in buttonState
      if (val == LOW) {               // Check if button is released
        if(lightstate == 0){
          lightstate = 1;
          digitalWrite(ledPin, HIGH);
          Serial.println("State 1: LED is on");
          //delay(1000);
          currentMillis = 0;
          previousMillis = 0;
          blinkstate = LOW;
        }
        else {
          lightstate = 0;
          digitalWrite(ledPin, LOW);
          blinkstate = LOW;
          Serial.println("State 2: LED is off");
          //delay(1000);
          }
      }
    }
  }

//////////////////////////Blink Section//////////////////////////////

if (lightstate = 1) {
  currentMillis = millis();
  if (currentMillis - previousMillis > interval){
    previousMillis = currentMillis;
    if (blinkstate = LOW)
      blinkstate = HIGH;
      else
      blinkstate = LOW;
      digitalWrite(ledPin, blinkstate);
  }
}
///////////////////End of Blink section//////////////////////////////

buttonState = val;
}