/*
future_relics
// board info: LilyGO TTGO T8 ESP32-S2 - with SD Card Slot
// board select: ESP32S2 DEV Module

current USB port: 142200
*/


#define sensor1 1 // PCB: 35 // potentiometer: shape RV1
#define sensor2 2 // PCB: 36 // potentiometer: rotation RV2
#define sensor3 3 // PCB: 46 // slide potentiometer: x position RV3
#define sensor4 4 // PCB: 45 // slide potentiometer: y position RV4
#define sensor5 5 // PCB: 42 // slide potentiometer: graytone RV5
#define sensorLED 0 // LED

String input;
String newData;
String output;
String moduleID = "#FR";


// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 115200 bits per second:
  Serial.begin(115200);  //goes to serial monitor, just for debugging purposes
  Serial1.begin(9600); // goes to the next module via patch cable (use transmit pin TX on IO17 and also connect to GND)

  Serial1.setTimeout(100); // there is a small bug, so there needs to be a checksum?
  
  // set mode for digital input to not give floating values, but either 0 or 1:
  pinMode(sensorLED, OUTPUT); // set LED pin to output
  //LED initial state
  digitalWrite(sensorLED, LOW);
}




// the loop routine runs over and over again forever:
void loop() {


  // sensor 1: shape
  // read analog input
  int sensorValue1 = analogRead(sensor1);
  // redefine range for font:
  int value1 = map(sensorValue1, 0, 8191, 40, 1);
  // use value1 to define shape:
  String shape = "";
  if(value1 >= 0 && value1 <= 1) {shape = "bubble";} // if value1 is bigger than or equal to 1 and value1 is smaller than or equal to 10: spike
  else if(value1 >= 2 && value1 <= 23) {shape = "spike";} // else if value1 is bigger than or equal to 11 and value1 is smaller than or equal to 20: bubble
  else if(value1 >= 24 && value1 <= 37) {shape = "fraction";}
  else if(value1 >= 38 && value1 <= 40) {shape = "square";}


  // sensor 2: rotation
  // read analog input
  int sensorValue2 = analogRead(sensor2);
  // redefine range for rotation:
  int rotation = map(sensorValue2, 0, 8191, 20, 0);


  // sensor3: x position
  // read analog input
  int sensorValue3 = analogRead(sensor3);
  // redefine range for x-position:
  int xPosition = map(sensorValue3, 0, 8191, 0, 450);


  // sensor4: y position
  // read analog input
  int sensorValue4 = analogRead(sensor4);
  // redefine range for y-position:
  int yPosition = map(sensorValue4, 0, 8191, 0, 700);


  // sensor5: graytone
  // read analog input
  int sensorValue5 = analogRead(sensor5);
  // redefine range for graytone:
  int value5 = map(sensorValue5, 0, 8191, 0, 100);
  // graytone:
  String graytone = "";
  if(value5 >= 0 && value5 <= 10) {graytone = "0.0";}
  else if(value5 >= 11 && value5 <= 20) {graytone = "0.1";}
  else if(value5 >= 21 && value5 <= 30) {graytone = "0.2";}
  else if(value5 >= 31 && value5 <= 40) {graytone = "0.3";}
  else if(value5 >= 41 && value5 <= 50) {graytone = "0.4";}
  else if(value5 >= 51 && value5 <= 60) {graytone = "0.5";}
  else if(value5 >= 61 && value5 <= 70) {graytone = "0.6";}
  else if(value5 >= 71 && value5 <= 80) {graytone = "0.7";}
  else if(value5 >= 81 && value5 <= 90) {graytone = "0.8";}
  else if(value5 >= 91 && value5 <= 100) {graytone = "0.9";}  



  //put all the above values in a string to define the new data from this module:
  newData = "&&&" + String(moduleID) + "," + String(shape) + "," + String(rotation) + "," + String(xPosition) + "," + String(yPosition) + "," + String(graytone) + "&&&";



 //Receive data from previous module (RX):
  input = Serial1.readStringUntil('\n'); // read received data until line break and store in input variable

  //LED
  if (input != "") {
    digitalWrite(sensorLED, HIGH); //turn LED on
  }
  else {
    digitalWrite(sensorLED, LOW); //turn LED off
  }

  
  output = input + newData;

 //Send data to next module (TX):
  Serial1.println(output); //the data received + new data 

 //Print data on Serial Monitor:
  Serial.println("This is the input I received: " + input);
  Serial.println("Future Relics, new data: " + newData);
  Serial.println("This is the output I send: " + output);


}