/*
 * This Arduino Nano code was developed by newbiely.com
 *
 * This Arduino Nano code is made available for public use without any restriction
 *
 * For comprehensive instructions and wiring diagrams, please visit:
 * https://newbiely.com/tutorials/arduino-nano/arduino-nano-oled
 */

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <OneWire.h> 
#include <DallasTemperature.h>
#include <U8g2lib.h>

#define ONE_WIRE_BUS A0 
#define OLED_WIDTH 128 // OLED display width,  in pixels
#define OLED_HEIGHT 64 // OLED display height, in pixels

// declare an SSD1306 display object connected to I2C
// Adafruit_SSD1306 oled(OLED_WIDTH, OLED_HEIGHT, &Wire, -1);
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);
OneWire oneWire(ONE_WIRE_BUS); 
DallasTemperature sensors(&oneWire);

#define LCDHeight                       u8g2.getDisplayHeight()
#define LCDWidth                        u8g2.getDisplayWidth()
#define ALIGN_CENTER(t)                 ((LCDWidth - (u8g2.getUTF8Width(t))) / 2)
#define ALIGN_RIGHT(t)                  (LCDWidth -  u8g2.getUTF8Width(t))
#define ALIGN_LEFT                      0

unsigned int rows, columns; // in pixels
const int dry = 639; // value for dry sensor
const int wet = 271; // value for wet sensor
unsigned long interval=500; // the time we need to wait
unsigned long previousMillis=0; // millis() returns an unsigned long.
String text;

// 'logo1 kura hitam 29x32', 29x32px
const unsigned char my_bitmap_logo1_kura_hitam_29x32 [] PROGMEM = {
	0x00, 0x1f, 0x00, 0x00, 0x80, 0x3f, 0x7c, 0x00, 0xc0, 0xfe, 0xff, 0x03, 0xe0, 0xff, 0xff, 0x0f, 
	0xe0, 0xff, 0xf8, 0x0f, 0xe0, 0x1f, 0xe0, 0x1f, 0x80, 0x0c, 0xc0, 0x03, 0x00, 0x04, 0x80, 0x03, 
	0x00, 0x02, 0x00, 0x07, 0x80, 0x83, 0x07, 0x06, 0xe0, 0xc1, 0x07, 0x06, 0xf0, 0x41, 0x0c, 0x0e, 
	0xf8, 0x01, 0x0c, 0x0c, 0xfc, 0x01, 0x0c, 0x0c, 0xfc, 0x01, 0x0c, 0x0c, 0xbe, 0x01, 0x04, 0x0c, 
	0x3e, 0x03, 0x06, 0x0c, 0x1f, 0x07, 0x03, 0x0c, 0x0f, 0xfe, 0x01, 0x0c, 0x0f, 0xfe, 0x00, 0x0c, 
	0x03, 0x06, 0x00, 0x04, 0x03, 0x06, 0x00, 0x06, 0x00, 0x0e, 0x00, 0x06, 0x00, 0x0c, 0x00, 0x03, 
	0x00, 0x0c, 0x00, 0x03, 0x00, 0x0e, 0x80, 0x01, 0x00, 0x1f, 0xc0, 0x03, 0x80, 0x3f, 0xe0, 0x03, 
	0x80, 0x77, 0xb8, 0x07, 0xc0, 0xc3, 0x0f, 0x07, 0xc0, 0x01, 0x03, 0x04, 0x40, 0x00, 0x00, 0x00
};

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 144)
const int my_bitmap_allArray_LEN = 1;
const unsigned char* my_bitmap_allArray[1] = {
	my_bitmap_logo1_kura_hitam_29x32
};




void setup() {
  // Serial.begin(9600);
  sensors.begin(); 

  // initialize OLED display with address 0x3C for 128x64
  // if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
  //   Serial.println(F("SSD1306 allocation failed"));
  //   while (true);
  // }
  u8g2.begin();
  u8g2.setFontMode(1);
  u8g2.enableUTF8Print();

  // oled.clearDisplay();
  // oled.setTextSize(1);          // text size
  // oled.setTextColor(WHITE);     // text color
  // // oled.setCursor(0, 10);        // position to display
  // // oled.println("Initalizing..."); // text to display
  // // oled.display();               // show on OLED
  // oledDisplayCenter("Initalizing...");

  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_7x14_tr); //u8g2_font_ncenB08_tr u8g2_font_helvB14_tf
  u8g2.drawXBMP(0, 0, 29, 32, my_bitmap_logo1_kura_hitam_29x32);
  u8g2.sendBuffer();
  delay(2000); // wait for initializing

  text = "Initalizing...";
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_7x14_tr); //u8g2_font_ncenB08_tr u8g2_font_helvB14_tf
  u8g2.setCursor(ALIGN_CENTER(text.c_str()), LCDHeight / 2);	// write something to the internal memory
  u8g2.print(text);
  u8g2.sendBuffer();
  delay(2000); // wait for initializing
  u8g2.clearBuffer();
}

void loop() {
  unsigned long currentMillis = millis(); // grab current time

  // check if "interval" time has passed (xxx milliseconds)
  if ((unsigned long)(currentMillis - previousMillis) >= interval) {
    
    // oled.clearDisplay();
    // oled.setTextSize(1);
    // oledDisplayHorizontalCenter(5, "TEMPERATURE");
    // oled.setTextSize(2);
    // sensors.requestTemperatures();
    // oledDisplayHorizontalCenter(oled.getCursorY()+5, String(sensors.getTempCByIndex(0)));
    // // oled.setCursor(oled.getCursorX()+5, oled.getCursorY());
    // oled.cp437(true);
    // oled.write(167);
    // oled.print("C");
    // oled.display();
    // oled.setTextSize(1);
    // oledDisplayHorizontalCenter(oled.getCursorY()+10, "MOISTURE");
    // int sensorVal = analogRead(A1);
    // int percentageHumidity = map(sensorVal, wet, dry, 100, 0);
    // oled.setTextSize(2);
    // oledDisplayHorizontalCenter(oled.getCursorY()+5, String(percentageHumidity) + "%");
    
    u8g2.firstPage();
    do {
      text = "TEMPERATURE";
      u8g2.setFont(u8g2_font_6x10_tf  );
      u8g2.setCursor(ALIGN_CENTER(text.c_str()),10);
      u8g2.print(text);
      sensors.requestTemperatures();
      text = String(sensors.getTempCByIndex(0));
      u8g2.setFont(u8g2_font_10x20_tf   );
      u8g2.setCursor(ALIGN_CENTER(text.c_str()) - 10,(u8g2.getAscent()-u8g2.getDescent())+10);
      u8g2.print(text);
      u8g2.setFont(u8g2_font_6x10_tf  );
      u8g2.print(" ");
      u8g2.setFont(u8g2_font_10x20_tf   );
      u8g2.print("\xb0");
      u8g2.print("C");
      text = "MOISTURE";
      u8g2.setFont(u8g2_font_6x10_tf );
      u8g2.setCursor(ALIGN_CENTER(text.c_str()),u8g2.getCursorY()+15);
      u8g2.print(text);
      int sensorVal = analogRead(A1);
      int percentageHumidity = map(sensorVal, wet, dry, 100, 0);
      text = String(percentageHumidity) + " %";
      u8g2.setFont(u8g2_font_10x20_tf   );
      u8g2.setCursor(ALIGN_CENTER(text.c_str()), u8g2.getCursorY()+(u8g2.getAscent()-u8g2.getDescent()));
      u8g2.print(text);

    } while( u8g2.nextPage() );

    // save the "current" time
    previousMillis = millis();

  } // end millis()
} // end loop()

// void oledDisplayHorizontalCenter(uint16_t rows, String text) {
//   int16_t x1;
//   int16_t y1;
//   uint16_t width;
//   uint16_t height;

//   oled.getTextBounds(text, 0, 0, &x1, &y1, &width, &height);

//   // display on horizontal and vertical center
//   // oled.clearDisplay(); // clear display
//   oled.setCursor((OLED_WIDTH - width) / 2, rows);
//   oled.println(text); // text to display
//   oled.display();
// }

// void oledDisplayCenter(String text) {
//   int16_t x1;
//   int16_t y1;
//   uint16_t width;
//   uint16_t height;

//   oled.getTextBounds(text, 0, 0, &x1, &y1, &width, &height);

//   // display on horizontal and vertical center
//   // oled.clearDisplay(); // clear display
//   oled.setCursor((OLED_WIDTH - width) / 2, (OLED_HEIGHT - height) / 2);
//   oled.println(text); // text to display
//   oled.display();
// }