// by N M D Weerasinghe SLCOTM

String Msg;
String Category;
String Function;
int Device_Number;
int First_Space;
int Second_Space;
bool Status;



void setup() {

for (int i= 2; i < 7;i++)
{
  pinMode(i, OUTPUT);
  digitalWrite(i,1);
}

delay(1500);
for (int i= 2; i < 7;i++)
{
  digitalWrite(i,0);
}


Serial.begin(9600);
Serial.println("Enter the command");

}

void loop() {

 
 if(Serial.available() )
 {
      delay(20);
    //Serial.print("Serial Available : ");
    //Serial.println(Serial.available() );

    Msg = Serial.readString();
    First_Space = Msg.indexOf(" ");
    //Serial.print("First Space : ");
    //Serial.println(First_Space);
    Second_Space = Msg.indexOf(" ",First_Space+1);
    //Serial.print("Second space : ");
    //Serial.println(Second_Space);
    int Third_Space = Msg.indexOf(" ",Second_Space+1);

    //Serial.println(Msg.substring(5));
    //Serial.println(Msg.substring(4,5));

    Category = Msg.substring(0,First_Space);
    String Device_Numb = Msg.substring(First_Space+1,Second_Space);
    Device_Number = Device_Numb.toInt();
    Function = Msg.substring(Second_Space + 1);

    Serial.print("Category : ");
    Serial.println(Category);
    Serial.print("Device_Numb : ");
    Serial.println(Device_Numb);
    Serial.print("Function : ");
    Serial.println(Function);

    if(Category == "LED")

    {
      if (Function.indexOf("ON") == 0)
      {
              Status = true;
      }

      else if(Function.indexOf("OFF") == 0)
          {
              Status = false;
          }

          else
          {
              Serial.println("Invalid Command (Operation)");
          }

      digitalWrite(Device_Number + 1 ,Status);

    }

    else
    {
      Serial.println("Invalid Command (Category)");
    }

 }


}