#include <Adafruit_GFX.h>       // include Adafruit graphics library
#include <Adafruit_ILI9341.h>   // include Adafruit ILI9341 TFT library
#include<Adafruit_TFTLCD.h>
//#include<Arduino.h>
#include <Adafruit_FT6206.h>
//#include<TouchScreen.h>
//#include <SPI.h>

#define BLACK   0x0000
#define NAVY 0x000F
#define DARKGREEN 0x03E0
#define DARKCYAN 0x03EF
#define MAROON 0x7800
#define PURPLE 0x780F
#define OLIVE 0x7BE0
#define LIGHTGREY 0xC618
#define DARKGREY 0x7BEF
#define BLUE 0x001F
#define GREEN 0x07E0
#define CYAN 0x07FF
#define RED 0xF800
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define ORANGE 0xFD20
#define GREENYELLOW 0xAFE5
#define PINK 0xF81F

#define PI 3.1415926535897932384626433832795

#define MINPRESSURE 200
#define MAXPRESSURE 1000
//#define DEFAULT_SCREEN_ROT 3
#define COLOUR_DARK 0x0020
#define COLOR_BRAND 0x2E4C

#include <Keypad.h>
#define DATAOUT 11//MOSI
#define DATAIN 12//MISO 
#define SPICLOCK  13//sck
#define SLAVESELECT0 10//ss
#define TFT_CS    8      // TFT CS  pin is connected to arduino pin 8
#define TFT_RST   9      // TFT RST pin is connected to arduino pin 9
#define TFT_DC    10     // TFT DC  pin is connected to arduino pin 10
#define FT6206_ADDR 0x38

Adafruit_FT6206 ts = Adafruit_FT6206();
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

int GetTouchX() {
  if (ts.touched()) {
    TS_Point p = ts.getPoint();
    // map the touch position to screen coordinates
    uint16_t x = map(p.x, 0, 240, tft.width(), 0);
    uint16_t y = map(p.y, 0, 320, tft.height(), 0);
    return x;
  }
  else {return 1000;}
}
int GetTouchY() {
  if (ts.touched()) {
    TS_Point p = ts.getPoint();
    // map the touch position to screen coordinates
    uint16_t x = map(p.x, 0, 240, tft.width(), 0);
    uint16_t y = map(p.y, 0, 320, tft.height(), 0);
    return y;
  }
  else {return 1000;}
}
/*void GUI_Frame(String str) {
  //tft.fillScreen(ILI9341_BLUE); // Clear screen
  tft.drawRect(0, 0, 100, 140, ILI9341_BLACK); // Draw border
  tft.drawRect(0, 0, 100, 20, ILI9341_BLACK);
  tft.drawLine(140,0,140,19,ILI9341_BLACK);
  tft.setTextSize(1); // Set text size
  tft.setTextColor(ILI9341_WHITE); // Set text color
  //tft.setCursor(143, 2); // Set cursor position for RTC time (adjust as needed)
  // Print RTC time (you will need to replace this with your own RTC code)
  //tft.print("00:00:00");
  //tft.setCursor(2, 2); // Set cursor position
  //tft.print(str); // Print string
}*/
void GUI_DrawKeypad() {
 
  tft.setTextSize(2);
  tft.setCursor(2, 12);
  tft.println("Enter Number");
  delay(1000);
  int squareSize = 40;
  int padding = 25;
  //tft.drawRect (80,27 , 90, 15 ,ILI9341_WHITE);
  int startX = (tft.width() - (3 * squareSize + 2 * padding)) / 2;
  int startY = tft.height() - (4 * squareSize + 3 * padding) - 3;
  for (int row = 0; row < 4; row++) {
    for (int col = 0; col < 3; col++) {
      tft.setTextColor(ILI9341_BLACK); // Set text color
      int x = startX + col * (squareSize + padding);
      int y = startY + row * (squareSize + padding);
      tft.fillRect(x, y, squareSize, squareSize, ILI9341_WHITE);
      if (row == 3 && col == 0) {
        // Draw "X" button
        tft.setTextSize(3);
        tft.setCursor(x + (squareSize - 12) / 2, y + (squareSize - 16) / 2);
        tft.setTextColor(ILI9341_RED); // Set text color
        tft.print("X");
      } else if (row == 3 && col == 2) {
        // Draw "OK" button
        tft.setTextSize(2);
        tft.setCursor(x + (squareSize - 18) / 2, y + (squareSize - 16) / 2);
        tft.setTextColor(ILI9341_DARKGREEN); // Set text color
        tft.print("OK");
      } else {
        // Draw number button
        int number = col + row * 3 + 1;
        if (number == 11) {
          number = 0;
        }
        tft.setTextSize(3);
        tft.setCursor(x + (squareSize - 12) / 2, y + (squareSize - 16) / 2);
        tft.print(number);
      }
    }
  }
  tft.setTextColor(ILI9341_WHITE);
}
String GUI_ReadKeypad() {
  int x = GetTouchX();
  int y = GetTouchY();
  if (x > 29 && x < 82 && y > 68 && y < 121) {
    return "1";
  }
  if (x > 93 && x < 146 && y > 68 && y < 121) {
    return "2";
  }
  if (x > 159 && x < 212 && y > 68 && y < 121) {
    return "3";
  }

  if (x > 29 && x < 82 && y > 133 && y < 186) {
    return "4";
  }
  if (x > 93 && x < 146 && y > 133 && y < 186) {
    return "5";
  }
  if (x > 159 && x < 212 && y > 133 && y < 186) {
    return "6";
  }

  if (x > 29 && x < 82 && y > 198 && y < 251) {
    return "7";
  }
  if (x > 93 && x < 146 && y > 198 && y < 251) {
    return "8";
  }
  if (x > 159 && x < 212 && y > 198 && y < 251) {
    return "9";
  }

  if (x > 29 && x < 82 && y > 263 && y < 316) {
    return "X";
  }
  if (x > 93 && x < 146 && y > 263 && y < 316) {
    return "0";
  }
  if (x > 159 && x < 212 && y > 263 && y < 316) {
    return "OK";
  }
  else {return "NO_KEY";}
}
String GUI_Keypad(boolean QuitOnX , String KeypadName) {
  String Keypress = "";
  String code = "";
 // GUI_Frame(KeypadName);
  GUI_DrawKeypad();
  tft.setTextSize(3);
  while (true) {
    Keypress = GUI_ReadKeypad();
    if (Keypress == "X") {
      if (QuitOnX = true && code == ""){return "\nCLEAR\n";}
      if (code != "") {
        code = "";
        tft.fillRect(28,38 , 183, 23 ,ILI9341_BLACK);
      }
    }
    if (Keypress == "OK") {return code;}
    if (Keypress != "X" && Keypress != "NO_KEY") {
      tft.fillRect(28,38 , 183, 23 ,ILI9341_BLACK);
      tft.setCursor(29,39); // Set cursor position
      code += Keypress;
      tft.print(code); // Print string
    }
    delay(100);
  }
}
int relay_pin=6;
String keypress="";
int x = GetTouchX();
int y = GetTouchY();
//String code = "";
void setup() {
  // put your setup code here, to run once:

tft.begin();

  tft.setCursor(26, 120);
  tft.setTextColor(ILI9341_RED);
  tft.setTextSize(3);

  tft.println("Hello!");

  tft.setCursor(20, 160);
  tft.setTextColor(ILI9341_GREEN);
  tft.setTextSize(2);

 // tft.println("Choose buttons");
 
  int currentpage=0;
  delay(1000);
  Serial.begin(115200);
  tft.begin();
  ts.begin(FT6206_ADDR);
  tft.setRotation(0); // adjust the screen rotation as needed
  tft.fillScreen(ILI9341_BLUE); // fill the screen with blue color 
  pinMode(relay_pin, OUTPUT);
  digitalWrite(relay_pin, LOW);
}
void loop() {
  Serial.print(GUI_Keypad(false,"Keypad"));
  keypress=GUI_ReadKeypad();
  //code=GUI_ReadKeypad();
  if (keypress=="OK"){
    digitalWrite(relay_pin, HIGH);
  }
  if (keypress=="X"){
    digitalWrite(relay_pin, LOW);
  }
}