/*
USEFUL LINKS
https://forum.arduino.cc/t/gmt020-02-vers-1-1-240x320-display/1109705


*/











/*
    MIT License

    Copyright (c) 2019-2020, Alexey Dynda

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.


    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.
*/
/**
     Nano/Atmega328 PINS: connect LCD to D5 (D/C), D4 (CS), D3 (RES), D11(DIN), D13(CLK)
     Attiny SPI PINS:     connect LCD to D4 (D/C), GND (CS), D3 (RES), D1(DIN), D2(CLK)
     ESP8266: connect LCD to D1(D/C), D2(CS), RX(RES), D7(DIN), D5(CLK)
*/

/* !!! THIS DEMO RUNS in FULL COLOR MODE */

#include "lcdgfx.h"
#include "lcdgfx_gui.h"
#include "owl.h"
#include <Keypad.h>

const int KEYPAD_ROW_NUM = 4; //four rows
const int KEYPAD_COL_NUM = 4; //four columns

char keys[KEYPAD_ROW_NUM][KEYPAD_COL_NUM] = {
  {'1','2','3', 'A'},
  {'4','5','6', 'B'},
  {'7','8','9', 'C'},
  {'*','0','#', 'D'}
};

byte pin_rows[KEYPAD_ROW_NUM] = {10, 9, 8, 7}; //connect to the row pinouts of the keypad
byte pin_column[KEYPAD_COL_NUM] = {6, 2, 1, 0}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), pin_rows, pin_column, KEYPAD_ROW_NUM, KEYPAD_COL_NUM );

DisplayIL9163_128x128x16_SPI display(3, {-1, 4, 5, 0, -1, -1}); // Use this line for Atmega328p
//DisplayIL9163_128x128x16_SPI display(3,{-1, -1, 4, 0, -1, -1}); // FOR ATTINY
//DisplayIL9163_128x128x16_SPI display(-1,{-1, 0, 1, 0, -1, -1); // Use this line for nano pi (RST not used, 0=CE, gpio1=D/C)
//DisplayIL9163_128x128x16_SPI display(24,{-1, 0, 23, 0,-1,-1}); // Use this line for Raspberry  (gpio24=RST, 0=CE, gpio23=D/C)
//DisplayIL9163_128x128x16_SPI display(22,{-1, 5, 21, 0,-1,-1}); // Use this line for ESP32 (VSPI)  (gpio22=RST, gpio5=CE for VSPI, gpio21=D/C)
//DisplayIL9163_128x128x16_SPI display(4,{-1, -1, 5, 0,-1,-1});  // Use this line for ESP8266 Arduino style rst=4, CS=-1, DC=5
// And ESP8266 RTOS IDF. GPIO4 is D2, GPIO5 is D1 on NodeMCU boards

/* OWN DEFINED ITEMS */
const char *menuItems[] = {
  "Plant states",
  "Plantlot setting",
  "Plantplace settings",
  "Other settings",
};

const char *plantLotItems[] = {
  "Temperature",
  "Light",
  "Air Moisture",
  "Define Plants",
};

const char *plantPlaceNumberedItems[] = {
  "Plant 1",
  "Plant 2",
  "Plant 3",
};

const char *plantPlaceItems[] = {
  "Soil Moisture",
};

LcdGfxMenu menu( menuItems, sizeof(menuItems) / sizeof(char *) );

enum menuState {
  MAIN,
  PLANTLOT,
  PLANTPLACENUM,
  PLANTPLACE,
  GENSETTINGS,
  PLANTSTATESDISPLAY
};

menuState frontend_menu_state;

void setup() {
  display.begin();
  display.setFixedFont(ssd1306xled_font6x8);
  display.fill( 0x0000 );

  // Menu init
  frontend_menu_state = MAIN;
  menu.show( display );
}

void loop() {
  lcd_delay(20);

  char key = keypad.getKey();

  // Display Menu Ctrl
  switch (frontend_menu_state)
  ​{
      case MAIN:
        showMenuMain();
        break;

      case PLANTLOT:
        showMenuPlantLot();
        break;

      case PLANTPLACENUM:
        showMenuPlantPlaceNumbered();
        break;
      
      case PLANTPLACE:
        showMenuPlantPlace();
        break;

      case GENSETTINGS:
        showMenuGeneralSettings();
        break;

      case PLANTSTATESDISPLAY:
        showPlantStatesDisplay();
        break;
      
      default:
        // default statements
      display.fill( 0x00 );
      display.setColor(RGB_COLOR16(255, 255, 255));
      menu.show( display );
  }

  // Keypad Ctrl
  if (key == '2')
  {
    menu.up();
    display.fill( 0x00 );
    display.setColor(RGB_COLOR16(255, 255, 255));
    menu.show( display );
  }
  else if(key == '8')
  {
    menu.down();
    display.fill( 0x00 );
    display.setColor(RGB_COLOR16(255, 255, 255));
    menu.show( display );
  }
  else if(key == 'A')
  {
    selectMenuItem();
  }
  else if(key == 'B')
  {
    goMenuBack();
  }
}

void showMenuMain()
{
  menu = new LcdGfxMenu(menuItems, sizeof(menuItems) / sizeof(char *));
}

void showMenuPlantLot()
{
  menu = new LcdGfxMenu(plantLotItems, sizeof(plantLotItems) / sizeof(char *));
}

void showMenuPlantPlaceNumbered()
{
  menu = new LcdGfxMenu(plantPlaceNumberedItems, sizeof(plantPlaceNumberedItems) / sizeof(char *));
}

void showMenuPlantPlace()
{
  menu = new LcdGfxMenu(plantPlaceItems, sizeof(plantPlaceItems) / sizeof(char *));
}

void showMenuGeneralSettings()
{
  // IMPLEMENT AND THINK THRU

  // DATE & TIME
  // LANG ????
  // MANUAL CTRL OF THINGS?
}

void showPlantStatesDisplay()
{
  // IMPLEMENT
}

void selectMenuItem()
{
  switch (frontend_menu_state) {
    case MAIN:
      switch (menu.selection()) {
        case 0:
          frontend_menu_state = PLANTSTATESDISPLAY;
          break;

        case 1:
          frontend_menu_state = PLANTLOT;
          break;

        case 2:
          frontend_menu_state = PLANTPLACE;
          break;

        case 3:
          frontend_menu_state = GENSETTINGS;
          break;

        default:
          break;
      }
      break;
    
    case PLANTLOT:
      switch (menu.selection()) {
        case 0:
        break;

        default:
          break;

        /*
        "Temperature",
  "Light",
  "Air Moisture",
  "Define Plants",
        
        */
      }
      break;

    case PLANTPLACENUM:
      break;

    case PLANTPLACE:
      break;

    case GENSETTINGS:
      break;

    case PLANTSTATESDISPLAY:
      // STILL TO IMPLEMENT
      break;

    default:
      break;
  }


  /*
  switch (menu.selection()) {
        case 0:
          display.setFixedFont(ssd1306xled_font6x8);
          display.clear();
          display.setColor(RGB_COLOR16(255, 255, 0));
          display.printFixed(0,  8, "Plant states", STYLE_NORMAL);
          break;

        case 1:
          display.setFixedFont(ssd1306xled_font6x8);
          display.clear();
          display.setColor(RGB_COLOR16(255, 255, 0));
          display.printFixed(0,  8, "Plantlot setting", STYLE_NORMAL);
          break;

        case 2:
          display.setFixedFont(ssd1306xled_font6x8);
          display.clear();
          display.setColor(RGB_COLOR16(255, 255, 0));
          display.printFixed(0,  8, "Plantplace settings", STYLE_NORMAL);
          break;

        case 3:
          display.setFixedFont(ssd1306xled_font6x8);
          display.clear();
          display.setColor(RGB_COLOR16(255, 255, 0));
          display.printFixed(0,  8, "Other settings", STYLE_NORMAL);
          break;

        default:
          break;
      }
      */
}

void goMenuBack()
{

}

/*--------------------------------------*/
/*
   Heart image below is defined directly in flash memory.
   This reduces SRAM consumption.
   The image is defined from bottom to top (bits), from left to
   right (bytes).
*/
/*
const PROGMEM uint8_t heartImage[8] = {
  0B00001110,
  0B00011111,
  0B00111111,
  0B01111110,
  0B01111110,
  0B00111101,
  0B00011001,
  0B00001110
};

const PROGMEM uint8_t heartImage8[ 8 * 8 ] = {
  0x00, 0xE0, 0xE0, 0x00, 0x00, 0xE5, 0xE5, 0x00,
  0xE0, 0xC0, 0xE0, 0xE0, 0xE0, 0xEC, 0xEC, 0xE5,
  0xC0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE5, 0xEC, 0xE5,
  0x80, 0xC0, 0xE0, 0xE0, 0xE0, 0xE0, 0xE5, 0xE0,
  0x00, 0x80, 0xC0, 0xE0, 0xE0, 0xE0, 0xE0, 0x00,
  0x00, 0x00, 0x80, 0xE0, 0xE0, 0xE0, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x80, 0xE0, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};



static void bitmapDemo() {
  display.setColor(RGB_COLOR16(64, 64, 255));
  display.drawBitmap1(0, 0, 128, 64, Owl);
  display.drawBitmap8(0, 0, 8, 8, heartImage8);
  display.setColor(RGB_COLOR16(255, 64, 64));
  display.drawBitmap1(0, 16, 8, 8, heartImage);
  lcd_delay(3000);
}
*/
/* Sprites are not implemented for color modes.
   But there is NanoEngine support
   To make example clear, we use lambda as function pointer. Since lambda can be
   passed to function only if it doesn't capture, all variables should be global.
   Refer to C++ documentation.
*/
/*
NanoPoint sprite;
NanoEngine16<DisplayIL9163_128x128x16_SPI> engine( display );

static void spriteDemo() {
  // We not need to clear screen, engine will do it for us
  engine.begin();
  // Force engine to refresh the screen
  engine.refresh();
  // Set function to draw our sprite
  engine.drawCallback( []()->bool {
    engine.getCanvas().clear();
    engine.getCanvas().setColor( RGB_COLOR16(255, 32, 32) );
    engine.getCanvas().drawBitmap1( sprite.x, sprite.y, 8, 8, heartImage );
    return true;
  } );

  sprite.x = 0;
  sprite.y = 0;
  for (int i = 0; i < 250; i++) {
    lcd_delay(15);
    // Tell the engine to refresh screen at old sprite position
    engine.refresh( sprite.x, sprite.y, sprite.x + 8 - 1, sprite.y + 8 - 1 );
    sprite.x++;
    if (sprite.x >= display.width()) {
      sprite.x = 0;
    }
    sprite.y++;
    if (sprite.y >= display.height()) {
      sprite.y = 0;
    }
    // Tell the engine to refresh screen at new sprite position
    engine.refresh( sprite.x, sprite.y, sprite.x + 8 - 1, sprite.y + 8 - 1 );
    // Do refresh required parts of screen
    engine.display();
  }
}

static void textDemo() {
  display.setFixedFont(ssd1306xled_font6x8);
  display.clear();
  display.setColor(RGB_COLOR16(255, 255, 0));
  display.printFixed(0,  8, "Normal text", STYLE_NORMAL);
  display.setColor(RGB_COLOR16(0, 255, 0));
  display.printFixed(0, 16, "bold text?", STYLE_BOLD);
  display.setColor(RGB_COLOR16(0, 255, 255));
  display.printFixed(0, 24, "Italic text?", STYLE_ITALIC);
  display.setColor(RGB_COLOR16(255, 255, 255));
  display.invertColors();
  display.printFixed(0, 32, "Inverted bold?", STYLE_BOLD);
  display.invertColors();
  lcd_delay(3000);
}

static void canvasDemo() {
  NanoCanvas<64, 16, 1> canvas;
  display.setColor(RGB_COLOR16(0, 255, 0));
  display.clear();
  canvas.clear();
  canvas.fillRect(10, 3, 80, 5);
  display.drawCanvas((display.width() - 64) / 2, 1, canvas);
  lcd_delay(500);
  canvas.fillRect(50, 1, 60, 15);
  display.drawCanvas((display.width() - 64) / 2, 1, canvas);
  lcd_delay(1500);
  canvas.setFixedFont(ssd1306xled_font6x8);
  canvas.printFixed(20, 1, " DEMO ", STYLE_BOLD );
  display.drawCanvas((display.width() - 64) / 2, 1, canvas);
  lcd_delay(3000);
}

static void drawLinesDemo() {
  display.clear();
  display.setColor(RGB_COLOR16(255, 0, 0));
  for (uint8_t y = 0; y < display.height(); y += 8) {
    display.drawLine(0, 0, display.width() - 1, y);
  }
  display.setColor(RGB_COLOR16(0, 255, 0));
  for (uint8_t x = display.width() - 1; x > 7; x -= 8) {
    display.drawLine(0, 0, x, display.height() - 1);
  }
  lcd_delay(3000);
}
*/