#define BLYNK_TEMPLATE_ID "TMPL4B3wGVOxo"
#define BLYNK_TEMPLATE_NAME "esp32 smart switch"
#define BLYNK_AUTH_TOKEN "8vos0XBl2CrvRRujfFogw7Nc4VzNUdr6"

#define GUI_MODE_LAMP 1
#define GUI_MODE_MUSIC 2
#define GUI_MODE_SETTINGS 3
#define GUI_MODE_OTHER 4

#include <Adafruit_GFX.h>    // Core graphics library
#include <SPI.h>       // this is needed for display
//#include <ILI9341_t3n.h>
#include <Adafruit_ILI9341.h>
#include <Arduino.h>      // this is needed for FT6206
#include <Adafruit_FT6206.h>

//------ SD stuff below ------
#include <SdFat.h>
//SdFat                SD;         // SD card filesystem
//Adafruit_ImageReader reader(SD); // Image-reader object, pass in SD filesys
//File root;

// ----- Blynk stuff below --------
/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>


// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = BLYNK_AUTH_TOKEN;

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// ------ Screen stuff below --------

// The FT6206 uses hardware I2C (SCL/SDA)
Adafruit_FT6206 ctp = Adafruit_FT6206();

// // The display also uses hardware SPI, plus #9 & #10
// #define TFT_CS 10
// #define TFT_DC 9
#define TFT_DC 2
#define TFT_CS 15
#define TFT_RST 4
#define SD_CS_PIN 5

#define ILI9341_TFTWIDTH 320
#define ILI9341_TFTHEIGHT 240



Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
//ILI9341_t3n tft = ILI9341_t3n(TFT_CS, TFT_DC, TFT_RST);

//--- Not working --- ---Implement later with real hardware ---
// Let's allocate the frame buffer ourself.
//DMAMEM uint16_t tft_frame_buffer[ILI9341_TFTWIDTH * ILI9341_TFTHEIGHT];



// Size of the color selection boxes and the paintbrush size
#define RECTWIDTH 160
#define RECTHEIGHT 20

#define SLIDER_X 200
#define SLIDER_Y 30
#define SLIDERWIDTH 80
#define SLIDERHEIGHT 180
#define SLIDER_ELEMENTS 12

int mode = 1;


// Global variables for checking between google and local
bool lampOn;
bool musicOn;
uint16_t lampDimmerLevel, volumeLevel;


void drawFrame()
{
  tft.fillScreen(ILI9341_BLACK);
}

/*void drawLampButtonON()
{ 
  tft.fillRect(REDBUTTON_X, REDBUTTON_Y, REDBUTTON_W, REDBUTTON_H, ILI9341_RED);
  tft.fillRect(GREENBUTTON_X, GREENBUTTON_Y, GREENBUTTON_W, GREENBUTTON_H, ILI9341_BLUE);
  drawFrame();
  tft.setCursor(GREENBUTTON_X + 6 , GREENBUTTON_Y + (GREENBUTTON_H/2));
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("ON");
  RecordOn = true;
}

void drawLampButtonOFF()
{ 
  tft.fillRect(REDBUTTON_X, REDBUTTON_Y, REDBUTTON_W, REDBUTTON_H, ILI9341_RED);
  tft.fillRect(GREENBUTTON_X, GREENBUTTON_Y, GREENBUTTON_W, GREENBUTTON_H, ILI9341_BLUE);
  drawFrame();
  tft.setCursor(GREENBUTTON_X + 6 , GREENBUTTON_Y + (GREENBUTTON_H/2));
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("OFF");
  RecordOn = false;
}*/

void turnLampON()
{
  //Switch via Google
  //Check if google is switched via other sources
}

void turnLampOFF()
{
  //Switch via Google
  //Check if google is switched via other sources
}

void drawLightSlider()
{
  //Drawing the slider for dimming light
}

void drawVolumeSlider()
{
  //Drawing the slider for dimming light
  //tft.fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
  
  //The outline
  tft.drawRoundRect(200, 30, SLIDERWIDTH, SLIDERHEIGHT, 8, ILI9341_CYAN);

  //The slider elements

  for (int i = 0; i < (volumeLevel / 100)*SLIDER_ELEMENTS; i++) 
  {
  tft.drawRoundRect(SLIDER_X+3, SLIDER_Y+4 + (SLIDERHEIGHT/SLIDER_ELEMENTS)*i-1, SLIDERWIDTH-6, (SLIDERHEIGHT/SLIDER_ELEMENTS)-4, 5, ILI9341_CYAN);
  }
}

bool checkLamp()
{

}

uint16_t checkLampDimmerLevel()
{
  
}

uint16_t checkVolumeLevel()
{
  
}

void checkTouchMusicMenu()
{

}

void checkTouchSettingsMenu()
{
  
}

void setup() {
  Serial.begin(115200);

  /*
  // ----- SD card stuff ------
  //Start SD card
  if (!SD.begin(CS_PIN)) {
    Serial.println("Card initialization failed!");
    while (true);
  }


  //Load graphics from SD card
  Adafruit_Image lamp_on;
  Adafruit_Image lamp_off;
  Adafruit_Image arrow;
  Adafruit_Image play_button;
  stat = reader.loadBMP("/wales.bmp", img);

  ImageReturnCode stat;
  stat = reader.loadBMP("/wales.bmp", lamp_on);
  stat = reader.loadBMP("/wales.bmp", lamp_off);
  stat = reader.loadBMP("/wales.bmp", arrow);
  stat = reader.loadBMP("/wales.bmp", play_button);
  */


  //Start Blynk
  Blynk.begin(auth, ssid, pass);

  //Start screen
  Serial.println(F("Cap Touch Paint!"));
  
  Wire.setPins(10, 8); // redefine first I2C port to be on pins 10/8
  tft.begin();

  if (! ctp.begin(40)) {  // pass in 'sensitivity' coefficient
    Serial.println("Couldn't start FT6206 touchscreen controller");
    while (1);
  }

  Serial.println("Capacitive touchscreen started");

  tft.setRotation(1);

  //Standard screen
  tft.fillScreen(ILI9341_BLACK);

  volumeLevel = 100;

  //Turn on frame buffer ---- NOT WORKING ----- OTHER LIBRARY
  //tft.setFrameBuffer(tft_frame_buffer);
  //tft.useFrameBuffer(true);

}

void loop() {

  // Wait for a touch - Remove later
  delay(10);
  if (! ctp.touched()) {
    return;
  }
  // put your main code here, to run repeatedly:
  //delay(10); // this speeds up the simulation

  switch (mode) {
  case GUI_MODE_LAMP:
    //Lamp menu - Default mode

    //tft.fillScreen(ILI9341_BLACK);


    // make the color selection boxes
    drawFrame();
    drawVolumeSlider();
    break;
  case GUI_MODE_MUSIC:
    //Music menu

    drawFrame();
    drawVolumeSlider();
    break;
  case GUI_MODE_SETTINGS:
    //Settings menu
    break;
  
  case GUI_MODE_OTHER:
    //Other menu or what ever
    break;
  default:
    // if nothing else matches, do the default
    // default is optional
    break;
  }

  //delay(10);

  // Retrieve a point  
  TS_Point p = ctp.getPoint();

  // Print out raw data from screen touch controller
  Serial.print("X = "); Serial.print(p.x);
  Serial.print("\tY = "); Serial.print(p.y);
  Serial.print(" -> ");

  // flip it around to match the screen.
  int x_temp = p.x;
  int y_temp = p.y;
  p.x = map(y_temp, 0, ILI9341_TFTWIDTH, 0, ILI9341_TFTWIDTH);
  p.y = map(x_temp, 0, ILI9341_TFTHEIGHT, ILI9341_TFTHEIGHT, 0);

  // Print out the remapped (rotated) coordinates
  Serial.print("("); Serial.print(p.x);
  Serial.print(", "); Serial.print(p.y);
  Serial.println(")");

  //Checking touch
}