#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH1106.h>
#include <RTClib.h>
#include "DHT.h"

////////////////////////////////////////////


#define SCREEN_WIDTH 128 // OLED display width,  in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET 4
Adafruit_SH1106 display(OLED_RESET);
RTC_DS3231 rtc;
String timee;
String dayyy;
String tem;
#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);


const int MPU = 0x69;
int16_t Tmp, GyX, GyY, GyZ;
///////////////////////////////////////////////

void setup() {

  Serial.begin(9600);
  dht.begin();
  //////////////////
  initRTC();
  display.begin(SH1106_SWITCHCAPVCC, 0x3C);
  display.display();
  delay(2000);         // wait for initializing

  ////////////////////
  display.clearDisplay(); // clear display
  delay(2000);
  display.display();
  display.setTextSize(2);          // text size
  display.setTextColor(WHITE);     // text color
  display.setCursor(0, 10);        // position to display

  //////////////////////////
  Wire.begin();
  Wire.beginTransmission(MPU);
  Wire.write(0x6B);
  Wire.write(0);
  Wire.endTransmission(true);
}

/////////////////////////////////////////
void loop() {
  //Gyroscope();
  DateTime now = rtc.now();
  float t = dht.readTemperature();
  //16828

  timee = "";
  timee += now.hour();
  timee += ':';
  timee += now.minute();
  timee += ':';
  timee += now.second();
  dayyy = "";
  dayyy += (now.year());
  dayyy += '/';
  dayyy += (now.month());
  dayyy += '/';
  dayyy += (now.day());
  tem =  t ;
  Serial.println(timee);
  Serial.println(dayyy);
  Serial.println(tem);
  display.setTextSize(2);          // text size
  display.setTextColor(WHITE);     // text color
  // Clear specific areas on the display
  display.fillRect(0, 0, display.width(), display.height(), BLACK);
  display.fillRect(0, 20, display.width(), display.height(), BLACK);
  display.fillRect(30, 40, display.width(), display.height(), BLACK);
  display.display();
  delay(500);
  display.setCursor(0, 0);
  display.println(timee);
  display.setCursor(0, 20);
  display.println(dayyy);
  display.setCursor(30, 40);
  display.println(tem);
  display.display();
  delay(2000);
  /*
    if (  GyX > 3000 && GyX < 7000 ) {
    //oledDisplayCenter(timee, dayyy, tem);
    }
    else {
    //display.clearDisplay();
    display.display();
    delay(1000);
    }
  */
}

//////////////////////////////////
void oledDisplayCenter(String text, String text2 , String text3 ) {
  int16_t x1;
  int16_t y1;
  uint16_t width;
  uint16_t height;
  //oled.setCursor(0, 0);
  //oled.getTextBounds(text, 0, 0, &x1, &y1, oled.width() / 2, oled.height() / 2);
  //oled.println(text);
  // display on horizontal and vertical center
  display.clearDisplay(); // clear display
  display.setCursor(0, 0);
  display.println(text);
  display.setCursor(10, 20);
  display.println(text2);
  display.setCursor(30, 40);
  display.println(text3);
  display.display();
  delay(2000);
}
//////////////////////////////////////////

void initRTC() {
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    while (1) delay(10);
  }

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
}

void Gyroscope() {
  Wire.beginTransmission(MPU);
  Wire.write(0x3B);
  Wire.endTransmission(false);
  Wire.requestFrom(MPU, 12, true);
  GyX = Wire.read() << 8 | Wire.read();
  GyY = Wire.read() << 8 | Wire.read();
  GyZ = Wire.read() << 8 | Wire.read();
  Serial.print("Gyroscope: ");
  Serial.print("X = "); Serial.print(GyX);
  Serial.print(" | Y = "); Serial.print(GyY);
  Serial.print(" | Z = "); Serial.println(GyZ);
  Serial.println(" ");
  delay(333);
}