// whether to enable or diable shell color support
#define color true

const int pinCount = 13;
String color_null ="\033[0m";
String color_red  ="\033[0;31m";
String color_blue ="\033[1;34m";
String color_green="\033[0;32m";
String color_cyan ="\033[0;36m";

int pins[pinCount];

void setPin(int pinNumber){
  if (getPin(pinNumber)==LOW){
    digitalWrite(pinNumber, HIGH);
    pins[pinNumber-1]=HIGH;
  }else{
    digitalWrite(pinNumber, LOW);
    pins[pinNumber-1]=LOW;
  }
}

void setPin(int pinNumber, int pinStatus){
  digitalWrite(pinNumber, pinStatus);
  pins[pinNumber-1]=pinStatus;
}

int getPin(int pinNumber){
  return pins[pinNumber-1];
}









void setup() { //initial setup and reset
  for (int i=1; i<pinCount+1; i++){ //set all pins and their corresponding array element LOW
    pinMode(i, OUTPUT);
    digitalWrite(i, LOW);
    pins[i]=LOW;
  } // setup serial connection
  Serial.begin(115200);
  delay(100); //Printing the welcome message immediately ... may cause issues.
  Serial.print(color_null+"-=[ Arduino Serial Manual Pin Control ]=-\n\r");
}

void loop() {
  Serial.print(">");
  char lastChar=(char) 0;
  String string = "";
  while ((int)lastChar!=13){
    lastChar=Serial.read();
    if ((int)lastChar!=-1){
      string = string + lastChar;
      Serial.write(lastChar);
    }
  }
  Serial.print("\n");
  int pin = 0;
  pin = string.toInt();
  if (pin>pinCount){  //But I want to use Port 32768!
    Serial.print("Error: Not supported.\n\r");
  }else if (pin<1){   //filter non-pin-number input
    if (string.indexOf("help")==0){ //lock the current pin settings
      Serial.print("All commands:\n\r");
      Serial.print(color_blue +"[Command   ]"+color_null+"|"+color_blue+"[Description                                                     ]\n\r");
      Serial.print(color_cyan +" help       "+color_null+"| display this information\n\r");
      Serial.print(color_cyan +" high       "+color_null+"| sets a pin high (asks for pin number separately)\n\r");
      Serial.print(color_cyan +" low        "+color_null+"| sets a pin low (asks for pin number separately)\n\r");
      Serial.print(color_cyan +" read       "+color_null+"| reads the state of a pin (asks for pin number separately)\n\r");
      Serial.print(color_cyan +" reset      "+color_null+"| run the \"setup\" function again\n\r");
      Serial.print(color_cyan +" stop       "+color_null+"| starts an infinite loop used to lock the state of the controller\n\r");
      Serial.print(color_green+"<any number>"+color_null+"| toggle that pin\n\r");
      Serial.print(color_red+"\n\rWarning:"+color_null+" This program has only rudimentary error handling.\n\r         Therefore you might end up having unpredictable results when something\n\r         goes wrong.\n\r");
      delay(100);
    }else if (string.indexOf("stop")==0){ //lock the current (pin) state
      Serial.print("Locking state... Good bye!\n\r");
      delay(100);
      Serial.end();
      delay(100);
      while (true){
        ;
      }
    }else if (string.indexOf("reset")==0){  //Well, does this even need an explanation?
      Serial.print("Resetting...\n\r");
      delay(100);
      Serial.end();
      delay(100);
      setup();
    } else if (string.indexOf("high")==0){ // set a pin high
      Serial.print("Which pin? ");
      String s = "";
      char c=(char)0;
      while ((int)c!=13){
        c=Serial.read();
        if ((int)c!=-1){
          s = s + c;
          Serial.write(c);
        }
      }
      setPin(s.toInt(),HIGH);
      Serial.print("\r\n");
    } else if (string.indexOf("read")==0){ // set a pin high
      Serial.print("Which pin? ");
      String s = "";
      char c=(char)0;
      while ((int)c!=13){
        c=Serial.read();
        if ((int)c!=-1){
          s = s + c;
          Serial.write(c);
        }
      }
    Serial.print("\n\rPin ");
    Serial.print(s);
    Serial.print(": ");
    Serial.print(getPin(s.toInt()));
    Serial.print("\n\r");
    } else if (string.indexOf("low")==0){ // set a pin low
      Serial.print("Which pin? ");
      String s = "";
      char c=(char)0;
      while ((int)c!=13){
        c=Serial.read();
        if ((int)c!=-1){
          s = s + c;
          Serial.write(c);
        }
      }
      setPin(s.toInt(),LOW);
      Serial.print("\r\n");
    } else {
      Serial.print("Unknown command.\n\rFor a list of available commands type \"help\".\n\r");
    }
  }else{
    setPin(pin);
    Serial.print("Pin ");
    Serial.print(pin);
    Serial.print(": ");
    Serial.print(getPin(pin));
    Serial.print("\n\r");
  }
}