int ledPin = D2;
int ledPin2 = D3;
void setup()
{
    pinMode(ledPin, OUTPUT);
    pinMode(ledPin2, OUTPUT);
    digitalWrite(ledPin, LOW);
    digitalWrite(ledPin2, LOW);
    Particle.function("led3x", ledControl);
    // Particle.function("ledUser", ledTimes);  
    Particle.function("led3x2", ledControl2);
}

void loop()
{
   // Nothing
}

// Ex 1 & 3: Blink LED 3 times
int ledControl(String command)
{
    int state = LOW;
    if(command == "HIGH") {
        for(int i = 0; i < 3; i++){
            digitalWrite(ledPin, HIGH);
            delay(300);
            digitalWrite(ledPin, LOW);
            delay(300);
        }
    }
    else if(command == "LOW") { 
       state = LOW;
    }
    else {
       return -1;
    }
    // write to the appropriate pin
    digitalWrite(ledPin, state);
    return 1;
}

// // Ex 2: Blink LED USer input
// int ledTimes(String command)
// {
//     int num = command.toInt();
//     for(int i = 0; i < num; i++){
//       digitalWrite(ledPin, HIGH);
//       delay(300);
//       digitalWrite(ledPin, LOW);
//       delay(300);
//     }
    
//     return 1;
// }

// Ex 3: Blink 2nd LED 3 times
int ledControl2(String command)
{
    int state = LOW;
    if(command == "HIGH") {
        for(int i = 0; i < 3; i++){
            digitalWrite(ledPin2, HIGH);
            delay(300);
            digitalWrite(ledPin2, LOW);
            delay(300);
        }
    }
    else if(command == "LOW") { 
       state = LOW;
    }
    else {
       return -1;
    }
    // write to the appropriate pin
    digitalWrite(ledPin2, state);
    return 1;
}