#include "DHTesp.h"
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define button1 27
#define button2 13
#define buttonUp 14
#define buttonDown 12
#define cool1 2
#define cool2 4
#define heat1 5
#define heat2 18

int HighTempSet = 75;
int newHighTempSet;
int LowTempSet = 65;
int newLowTempSet;
bool setMode = true;

const unsigned long event1Interval = 10000;
unsigned long previous1Time = 0;

#define SCREEN_WIDTH 128 // OLED width,  in pixels
#define SCREEN_HEIGHT 64 // OLED height, in pixels

Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const int DHT_PIN = 15;
DHTesp dhtSensor;

void setup() 
{
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(buttonUp, INPUT_PULLUP);
  pinMode(buttonDown, INPUT_PULLUP);
  pinMode(cool1, OUTPUT);
  pinMode(cool2, OUTPUT);
  pinMode(heat1, OUTPUT);
  pinMode(heat2, OUTPUT);
  Serial.begin(115200);

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
}
    oled.clearDisplay();
}

void loop() 
{
  unsigned long current1Time = millis();
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();

  int pressed1 = digitalRead(button1);
  int pressed2 = digitalRead(button2);
  int pressedUp = digitalRead(buttonUp);
  int pressedDown = digitalRead(buttonDown);

  if(pressed1 == LOW)
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(19, 6);       // set position to display (x,y)
    oled.println("Set High");
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(102, 42);       // set position to display (x,y)
    oled.println(HighTempSet);
    previous1Time = current1Time;
  setMode = true;
  delay(10);
  }
  if(pressed2 == LOW)
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(20, 6);       // set position to display (x,y)
    oled.println("Set Low");
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(0, 42);       // set position to display (x,y)
    oled.println(LowTempSet);
    previous1Time = current1Time;
  setMode = false;
  delay(10);
  }

  if((pressedUp == LOW)&&(setMode == true))
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(19, 6);       // set position to display (x,y)
    oled.println("Set High");
    newHighTempSet = HighTempSet+1;
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(102, 42);       // set position to display (x,y)
    oled.println(HighTempSet);
    HighTempSet = newHighTempSet;
    previous1Time = current1Time;
    delay(10);
  }

  if((pressedDown == LOW)&&(setMode == true))
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(19, 6);       // set position to display (x,y)
    oled.println("Set High");
    newHighTempSet = HighTempSet-1;
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(102, 42);       // set position to display (x,y)
    oled.println(HighTempSet);
    HighTempSet = newHighTempSet;
    previous1Time = current1Time;
    delay(10);
  }

  if((pressedUp == LOW)&&(setMode == false))
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(20, 6);       // set position to display (x,y)
    oled.println("Set Low");
    newLowTempSet = LowTempSet+1;
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(0, 42);       // set position to display (x,y)
    oled.println(LowTempSet);
    LowTempSet = newLowTempSet;
    previous1Time = current1Time;
    delay(10);
  }

  if((pressedDown == LOW)&&(setMode == false))
  {
    oled.clearDisplay();
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(20, 6);       // set position to display (x,y)
    oled.println("Set Low");
    newLowTempSet = LowTempSet-1;
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(0, 42);       // set position to display (x,y)
    oled.println(LowTempSet);
    LowTempSet = newLowTempSet;
    previous1Time = current1Time;
    delay(10);
  }
  if (current1Time - previous1Time >= event1Interval)
  {
    oled.clearDisplay();
    oled.setTextSize(3);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(0, 0);       // set position to display (x,y)
    oled.println(String((((data.temperature)*9/5)+32),0) + " F");
    oled.setTextSize(3);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(0, 25);       // set position to display (x,y)
    oled.println(String((data.humidity),0) + " %");
    previous1Time = current1Time;

    if((((data.temperature)*9/5)+32) >= (HighTempSet))
  {
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(80, 25);       // set position to display (x,y)
    oled.println("Cool");
  }
   if((((data.temperature)*9/5)+32) <= (LowTempSet))
  {
    oled.setTextSize(2);         // set text size
    oled.setTextColor(WHITE);    // set text color
    oled.setCursor(80, 25);       // set position to display (x,y)
    oled.println("Heat");
  }
  }
    

  oled.display();
  
}