//#include <Wire.h> 
#include <OneButtonTiny.h>
#include <LiquidCrystal_I2C.h>
#include <EEPROM.h>
#include <Debouncer.h>
#include <InterpolationLib.h>

#define POTI_PIN A2
#define ECHO_PIN 3   //11
#define ENDSCH_PIN 5  //5
#define TAST_PIN 6    //6
#define RELAIS_PIN 7  //4
#define LED_ZUHAUSEPIN 8  //5

#define EEPROMSTART 10  //Erste Speicherstelle für Einstellwerte
#define EEPROM_SIZE 40

#define SM_UNDEF 0
#define SM_ZUHAUSE 1
#define SM_ZUHAUSEGEPRUEFT 2
#define SM_VERLASSEN 3  //nicht mehr zu Hause, Relais noch aus
#define SM_UNTERWEGS 4  //Relais ein
#define SM_NACHHAUSE 5  //Endschalter, Relais aus


const int numValues = 10;
double xValues[10] = { 0, 100, 200, 300, 400, 600, 700, 800, 900, 1000 };
double yValues[10] = { 5,  10,  15,  20,  25,  30,  40,  50,  70,  100 };


const char VER1[17] = "Test Interp";
const char VER2[17] = "2025-05-26";
const char ZEILELEER[17] = "                ";


boolean bLcdBacklight = true;
boolean bEndsch = false;

int iPotiVal;

int duration_ms = 50;
Debouncer debouncer(ENDSCH_PIN, duration_ms);

OneButtonTiny TastOB = OneButtonTiny(
  TAST_PIN,  // Input pin for the button
  true,      // Button is active LOW
  true       // Enable internal pull-up resistor
);

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display


void setup() {
  pinMode(LED_BUILTIN, OUTPUT);

  pinMode(POTI_PIN, INPUT);
  pinMode(LED_ZUHAUSEPIN, OUTPUT);  //Relais
  pinMode(TAST_PIN, INPUT_PULLUP);
  pinMode(ENDSCH_PIN, INPUT_PULLUP);

  Serial.begin(9600);

//  if (!EEPROM.begin(EEPROM_SIZE)) // size in Byte
  if (!EEPROM.begin()) 
  {
    Serial.println("failed to initialise EEPROM"); delay(2000);
  }
  else
  {
    Serial.println("finitialise EEPROM ok"); delay(2000);
  }
  Serial.print("EEPROM length: ");
  Serial.println(EEPROM.length());

  // readEEprom();
    getEEpromInt(0);
  lcd.init();
  lcd.backlight();
  delay(250);
  lcd.noBacklight();
  delay(1000);
  lcd.backlight();
  delay(500);

  // Single Click event attachment
  TastOB.attachClick(handleClickTast);

  // Long Press Start event attachment
  TastOB.attachLongPressStart(handleLongPressedTast);

  // Double Click event attachment with lambda
  TastOB.attachDoubleClick(handleDoubleClickTast);

  delay(10);

  AnzeigeStart();
  delay(20);
  Serial.println ("Anzeigestart Ende");
// lcd.noBacklight();
 // bLcdBacklight = false; 
}

void readEEprom(){
 byte value;
  for (int address = 0 ; address < 5 ; address++) {
    value = EEPROM.read(address);
    Serial.print(address);
    Serial.print("\t");
    Serial.print(value, DEC);
    Serial.println();
  }
} 

int getEEpromInt(int address){
  int getval;
  EEPROM.get(address, getval);
    Serial.print(address);
    Serial.print("\t");
    Serial.print(getval, DEC);
    Serial.println();

}

void putEEpromInt(int address, int val){
  EEPROM.put(address, val);

  }

void writeEEprom(int address, byte value){

  EEPROM.update(address, value);
//  EEPROM.commit();
}  


void AnzeigeStart() {
  Serial.println("Anzeigestart ");
//  Serial.println(iAnzeigeMode);

  char myDecString1[17];
  char myDecString2[17];

  sprintf(myDecString2, "                ");
  strcpy(myDecString2,ZEILELEER);
  sprintf(myDecString1, VER1 );
  sprintf(myDecString2, VER2 );
  Anzeige(myDecString1,0);
  Anzeige(myDecString2,1);
}


void loop() {
  bool bTaster;

  char myDecString1[17];
  char myDecString2[17];

  debouncer.update(); // you should update debouncer first
  bool bEndsClick;
  if (debouncer.edge()) {       // if edge is detected
    if (debouncer.rising()){   // if edge is rising
      bEndsch = false;
      Serial.println("EndschClick");
      writeEEprom(2,123);
      writeEEprom(4,234);
      putEEpromInt(0,iPotiVal);
    }  
//      Serial.println("rise");
    if (debouncer.falling()){  // if edge is falling
      bEndsch = true;
 //     Serial.println("fall");
    }
   }

  TastOB.tick();
  
  bTaster = !digitalRead(TAST_PIN);
  digitalWrite(LED_ZUHAUSEPIN, bTaster);

 // Serial.print("bEndsch");
 // Serial.println(bEndsch);

  iPotiVal = analogRead(POTI_PIN);
  //Serial.println(iPotiVal);
  StandardAnzeige();

  //Serial.print(Interpolation::Linear(xValues, yValues, numValues, iPotiVal, false));
  delay(50);
 
}



//============== Taster

static void handleClickTast() {
  Serial.println("Clicked!");
  readEEprom();
  getEEpromInt(0);
 
  int iVal;
  //readEEPROM();
//return;
    bLcdBacklight = !bLcdBacklight;
    if (bLcdBacklight)  lcd.backlight();
    else  lcd.noBacklight();
 }   


static void handleLongPressedTast() {
}

static void handleDoubleClickTast() {   //Doppelklick: Einstellungen +- umschalten oder im Standard-Anzeige-Modus: Relais ein/ausschalten
  Serial.println("Doubleclicked");
}


//============== Anzeige
void Anzeige(char caText[17], int iZeile){
  lcd.setCursor(0, iZeile);
  lcd.print(caText);
}



void StandardAnzeige() {
  char myDecString1[17];
  char myDecString2[17];

  sprintf(myDecString2, "                ");
  strcpy(myDecString2,ZEILELEER);
  sprintf(myDecString1, "Poti: %5d",iPotiVal );
//  Serial.println(myDecString1);
  Anzeige(myDecString1,0);
  Anzeige(myDecString2,1);
}




//============== LED