/*
  Testing GEM on ESP32-S3
*/

#include <GEM_adafruit_gfx.h>
// #include <KeyDetector.h>
#include <Adafruit_ST7789.h>
#include <SPI.h>

#define TFT_CS         5
#define TFT_RST        4
#define TFT_DC         2
#define TFT_SCLK       12
#define TFT_MOSI       11

Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);

// Create variables that will be editable through the menu and assign them initial values
int number = -512;
bool enablePrint = false;

// Create two menu item objects of class GEMItem, linked to number and enablePrint variables 
GEMItem menuItemInt("Number:", number);
GEMItem menuItemBool("Enable print:", enablePrint);

// Create menu button that will trigger printData() function. It will print value of our number variable
// to Serial monitor if enablePrint is true. We will write (define) this function later. However, we should
// forward-declare it in order to pass to GEMItem constructor
void printData(); // Forward declaration
GEMItem menuItemButton("Print", printData);

// Create menu page object of class GEMPage. Menu page holds menu items (GEMItem) and represents menu level.
// Menu can have multiple menu pages (linked to each other) with multiple menu items each
GEMPage menuPageMain("Main Menu");

// Create menu object of class GEM_adafruit_gfx. Supply its constructor with reference to tft object we created earlier
GEM_adafruit_gfx menu(tft, GEM_POINTER_ROW, GEM_ITEMS_COUNT_AUTO);
// Which is equivalent to the following call (you can adjust parameters to better fit your screen if necessary):
// GEM_adafruit_gfx menu(tft, /* menuPointerType= */ GEM_POINTER_ROW, /* menuItemsPerScreen= */ GEM_ITEMS_COUNT_AUTO, /* menuItemHeight= */ 10, /* menuPageScreenTopOffset= */ 10, /* menuValuesLeftOffset= */ 86);

void setup(void) {
  Serial.begin(9600);
  Serial.print(F("Hello! ST77xx TFT Test"));

  // Use this initializer (uncomment) if using a 1.3" or 1.54" 240x240 TFT:
  tft.init(240, 320);           // Init ST7789 240x240
  tft.invertDisplay(0);
  tft.setRotation(8);
  // OR use this initializer (uncomment) if using a 1.69" 280x240 TFT:
  //tft.init(240, 280);           // Init ST7789 280x240

  // OR use this initializer (uncomment) if using a 2.0" 320x240 TFT:
  //tft.init(240, 320);           // Init ST7789 320x240

  // OR use this initializer (uncomment) if using a 1.14" 240x135 TFT:
  //tft.init(135, 240);           // Init ST7789 240x135
  
  // OR use this initializer (uncomment) if using a 1.47" 172x320 TFT:
  //tft.init(172, 320);           // Init ST7789 172x320

  // OR use this initializer (uncomment) if using a 1.9" 170x320 TFT:
  //tft.init(170, 320);           // Init ST7789 170x320

  // Explicitly set correct colors for monochrome OLED screen
  menu.setForegroundColor(ST77XX_WHITE);
  menu.setBackgroundColor(ST77XX_BLACK);


  Serial.println(F("Initialized"));

  // Menu init, setup and draw
  menu.init();
  setupMenu();
  menu.drawMenu();
}

void setupMenu() {
  // Add menu items to menu page
  menuPageMain.addMenuItem(menuItemInt);
  menuPageMain.addMenuItem(menuItemBool);
  menuPageMain.addMenuItem(menuItemButton);

  // Add menu page to menu and set it as current
  menu.setMenuPageCurrent(menuPageMain);
}

void loop() {
  delay(500);
  /*
  // If menu is ready to accept button press...
  if (menu.readyForKey()) {
    // ...detect key press using KeyDetector library
    myKeyDetector.detect();
    // Pass pressed button to menu
    // (pressed button ID is stored in trigger property of KeyDetector object)
    menu.registerKeyPress(myKeyDetector.trigger);
  }
  */
}

void printData() {
  // If enablePrint flag is set to true (checkbox on screen is checked)...
  if (enablePrint) {
    // ...print the number to Serial
    Serial.print("Number is: ");
    Serial.println(number);
  } else {
    Serial.println("Printing is disabled, sorry:(");
  }
}