/*Seeeduino XIAO -> ILI9341
Vin            -> Vcc
GND            -> GND
GPIO 3         -> CS
GPIO 1         -> RESET
GPIO 2         -> D/C
GPIO 10(MOSI)  -> SDI(MOSI)
GPIO 8(SCK)    -> SCK
GPIO 0         -> LED
*/


#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <Adafruit_NeoPixel.h>
#include <TouchScreen.h>
//#include <XPT2046_Touchscreen.h>
//#define SPICOM SPI
#define Adafruit_ILI9341_DRIVER

#define TFT_MOSI D10
#define TFT_SCLK D8
#define TFT_MISO D9
#define TFT_CS D7
#define TFT_DC D6
#define TFT_RST D4
\


#define NEOPIXEL_PIN 5
#define NUM_PIXELS 30
#define BRIGHTNESS 255 // Set BRIGHTNESS to about 1/5 (max = 255)


Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_PIXELS, NEOPIXEL_PIN, NEO_GRBW + NEO_KHZ800);

#define TS_MINX 150
#define TS_MINY 120
#define TS_MAXX 920
#define TS_MAXY 940

#define MINPRESSURE 10
#define MAXPRESSURE 1000

//Touchscreen X+ X- Y+ Y- pins
#define YP A2  // must be an analog pin, use "An" notation!
#define XM A0  // must be an analog pin, use "An" notation!
#define YM D1   // can be a digital pin
#define XP D3 // can be a digital pin


TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);


enum ButtonState {
  RED,
  GREEN,
  YELLOW
};

ButtonState currentButtonState = RED;

void setup() {

  pinMode(TFT_DC, OUTPUT);
pinMode(TFT_CS, OUTPUT);
pinMode(TFT_SCLK, OUTPUT);
pinMode(TFT_MOSI, OUTPUT);

  Serial.begin(9600);
  tft.begin();
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
  strip.setBrightness(BRIGHTNESS);

  // Clear the screen
  tft.fillScreen(ILI9341_BLUE);
   tft.setRotation(1); 

tft.setCursor(80, 12);
  tft.setTextColor(ILI9341_ORANGE);
  tft.setTextSize(3);
  tft.println("Serenity");
tft.setCursor(110, 50);
  tft.setTextColor(ILI9341_ORANGE);
  tft.setTextSize(4);
  tft.println("NOW!");

  tft.setCursor(60, 100);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("Fab Academy 2023");

  // Draw buttons on the screen
  drawButtons();
}

void loop() {
  TSPoint touch = ts.getPoint();
 //tft.setRotation(2);


  if (touch.z >= MINPRESSURE && touch.z <= MAXPRESSURE) {
    // Touch event detected
    int16_t x = map(touch.x, TS_MINX, TS_MAXX, 0, tft.width());
    int16_t y = map(touch.y, TS_MINY, TS_MAXY, 0, tft.height());
 

 
    // Check if the touch is within the button areas
    if (x > 40 && x < 120 && y > 40 && y < 120) {
      // Button 1 is pressed
      setButtonState(RED);
    } else if (x > 40 && x < 120 && y > 40 && y < 240){
      // Button 2 is pressed
      setButtonState(GREEN);
    } else if (x > 280 && x < 360 && y > 40 && y < 120){
      // Button 3 is pressed 
      setButtonState(YELLOW);
    }
    // Add more button checks as needed
  }
  {
  // a point object holds x y and z coordinates
  TSPoint p = ts.getPoint();
  
  // we have some minimum pressure we consider 'valid'
  // pressure of 0 means no pressing!
  if (p.z > ts.pressureThreshhold) {
     Serial.print("X = "); Serial.print(p.x);
     Serial.print("\tY = "); Serial.print(p.y);
     Serial.print("\tPressure = "); Serial.println(p.z);
  }

  delay(100);
}
}

void setButtonState(ButtonState newState) {
  if (newState != currentButtonState) {
    // Change the Neopixel color based on the button state
    switch (newState) {
      case RED:
        setColor(0, 255, 0); // Red
        break;
      case GREEN:
        setColor(255, 0, 0); // Green
        break;
      case YELLOW:
        setColor(255, 255, 0); // Yellow
        break;
    }
    currentButtonState = newState;
  }
}

void setColor(uint8_t red, uint8_t green, uint8_t blue) {
  for (int i = 0; i < NUM_PIXELS; i++) {
    strip.setPixelColor(i, strip.Color(red, green, blue));
  }
  strip.show();
}

void drawButtons() {
  // Draw button 1
  tft.fillRect(0, 145, 60, 100, ILI9341_YELLOW);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.setCursor(55, 70);
   //tft.print("RED");

  // Draw button 2
  tft.fillRect(80, 145, 60, 100, ILI9341_GREEN);
  tft.setCursor(175, 70);
  //tft.print("GREEN");

  // Draw button 3
  tft.fillRect(160, 145, 60, 100, ILI9341_RED);
  tft.setCursor(295, 70);
  //tft.print("YELLOW");

 
}