#include "RTClib.h"
#include <Arduino.h>         // required by platformIO
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#include <dht.h>
dht DHT;

#define DHTTYPE DHT22
#define DHT22_pin 5


float humidity;
float temperature;

RTC_DS1307 rtc;

// oled SSD1306 display connected to I2C
#define OLED_RESET 4
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

char datetimeBuffer[8] = "";

#define BP_Plus_PIN 2
#define BP_Moins_PIN 3
#define BP_Enter_PIN 4
boolean State_BP_Plus = HIGH;
boolean lastState_BP_Plus = HIGH;
boolean State_BP_Moins = HIGH;
boolean lastState_BP_Moins = HIGH;
boolean State_BP_Enter = HIGH;
boolean lastState_BP_Enter = HIGH;
int BP_Compt = 0;



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

  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Don't proceed, loop forever
  }
  pinMode(BP_Plus_PIN, INPUT_PULLUP);
  pinMode(BP_Moins_PIN, INPUT_PULLUP);
  pinMode(BP_Enter_PIN, INPUT_PULLUP);

}

void loop () {

  //gestion BP +
  State_BP_Plus = digitalRead(BP_Plus_PIN);
  if (lastState_BP_Plus != State_BP_Plus && State_BP_Plus == LOW ) {

      BP_Compt++;
  }
      Serial.print(" BP Compt PLUS 1    ");
      Serial.println(BP_Compt);
  
    lastState_BP_Plus = State_BP_Plus;
  

  //gestion BP -
  State_BP_Moins = digitalRead(BP_Moins_PIN);
  if (lastState_BP_Moins != State_BP_Moins && State_BP_Moins == LOW) {

      BP_Compt--;
    }
    lastState_BP_Moins = State_BP_Moins;
  
  //gestion BP ENTER
  State_BP_Enter = digitalRead(BP_Enter_PIN);
  if (lastState_BP_Enter != State_BP_Enter) {
    lastState_BP_Enter = State_BP_Enter;
    if (State_BP_Enter == HIGH) {
      //Serial.println(" BP Enter released");
    }
    if (State_BP_Enter == LOW) {
      //Serial.println(" BP Enter pressed");
    }
  }

  //heure();
  temp();
  hum();
  refresh();
}

float temp() {
  int chk = DHT.read22(5);
  temperature = DHT.temperature;
  return temperature;

}

float hum() {
  int chk = DHT.read22(5);
  humidity = DHT.humidity;
  return humidity;

}

void heure() {
  DateTime now = rtc.now();
  sprintf(datetimeBuffer, "%02d:%02d:%02d", now.hour(), now.minute(), now.second());
 // return datetimeBuffer;
}
void refresh() {
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 10);
  display.println("heure");
  display.setCursor(70, 10);
  display.println(datetimeBuffer);

  display.setCursor(1, 30);
  display.println("temperature");
  display.setCursor(70, 30);
  display.println(temperature);

  display.setCursor(1, 50);
  display.println("humidite");
  display.setCursor(70, 50);
  display.println(humidity);
  display.display();

  display.setCursor(100,40);
  display.println(BP_Compt);

  //Serial.print(datetimeBuffer);
  //Serial.println();
  delay(0);
}