/*************************************************************

  This is a simple demo of sending and receiving some data.
  Be sure to check out other examples!
 *************************************************************/

// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID           "TMPLYTrKqXWB"
#define BLYNK_DEVICE_NAME           "Quickstart Device"
#define BLYNK_AUTH_TOKEN            "aSFgRjxkqMhykk42cC3bVsWfeUxesw6c"


// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

// ex
#define btnA 2
int count = 0;

// LED
#define led 32

// DHT
#include "DHTesp.h"
#define DHT 15
float Temperature;
float Humidity; 
DHTesp dht;

// OLED
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const uint8_t T[] = {0x03, 0xe0, 0x00, 0x03, 0xe0, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x03, 0x70, 0x00, 0x07, 0x70, 0x00, 0x0e, 0x38, 0x00, 0x0c, 0x18, 0x00, 0x0c, 0x18, 0x00, 0x0e, 0x38, 0x00, 0x07, 0xf0, 0x00, 0x03, 0xe0, 0x00};
const uint8_t H[] = {0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x01, 0xe0, 0x00, 0x03, 0xf0, 0x00, 0x07, 0x38, 0x00, 0x0e, 0x1c, 0x00, 0x1c, 0x0e, 0x00, 0x18, 0x06, 0x00, 0x38, 0x07, 0x00, 0x30, 0x03, 0x00, 0x30, 0x03, 0x00, 0x30, 0x03, 0x00, 0x38, 0x07, 0x00, 0x18, 0x06, 0x00, 0x1c, 0x0e, 0x00, 0x0f, 0xfc, 0x00, 0x07, 0xf8, 0x00, 0x00, 0xc0, 0x00};
const uint8_t F[] = {0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x01, 0xe0, 0x00, 0x03, 0xf0, 0x00, 0x07, 0x38, 0x00, 0x06, 0x18, 0x00, 0x0e, 0xdc, 0x00, 0x0c, 0xcc, 0x00, 0x1c, 0xce, 0x00, 0x38, 0xc7, 0x00, 0x30, 0xc3, 0x00, 0x70, 0x03, 0x80, 0x60, 0xc1, 0x80, 0xe0, 0xc1, 0xc0, 0xc0, 0x00, 0xc0, 0xff, 0xff, 0xc0, 0x7f, 0xff, 0x80, 0x00, 0x00, 0x00};

// This function is called every time the Virtual Pin 0 state changes
BLYNK_WRITE(V0)
{
  // Set incoming value from pin V0 to a variable
  int value = param.asInt();
  Serial.println("value : "+String(value));

  if(value == 1)
  {
    digitalWrite(led, LOW); // relay > active Low
  }

  else
  {
    digitalWrite(led, HIGH);
  }
  // Update state
  Blynk.virtualWrite(V1, value);
}

// This function is called every time the device is connected to the Blynk.Cloud
BLYNK_CONNECTED()
{
  // Change Web Link Button message to "Congratulations!"
  Blynk.setProperty(V3, "offImageUrl", "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations.png");
  Blynk.setProperty(V3, "onImageUrl",  "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations_pressed.png");
  Blynk.setProperty(V3, "url", "https://docs.blynk.io/en/getting-started/what-do-i-need-to-blynk/how-quickstart-device-was-made");
}

// This function sends Arduino's uptime every second to Virtual Pin 2.
void myTimerEvent()
{
  
  // You can send any value at any time.
  // Please don't send more that 10 values per second.

/*
  // Count
  if(digitalRead(btnA) == 1)
  {
    count ++;
    Serial.println("btnA_Count : "+ String(count));
  }

  Blynk.virtualWrite(V5, count);
  
*/
  // DHT
  Temperature = dht.getTemperature(); 
  Humidity = dht.getHumidity(); 
   
  Blynk.virtualWrite(V6, Temperature);
  Blynk.virtualWrite(V7, Humidity);
//-------------------------------------------

  Blynk.virtualWrite(V4, led);

  
  Blynk.virtualWrite(V2, millis() / 1000);
}

void setup()
{
  // Debug console
  Serial.begin(115200);
  pinMode(led, OUTPUT);
  pinMode(btnA, INPUT);

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);

  // Setup a function to be called every second
  timer.setInterval(1000L, myTimerEvent);

  // DHT_SETUP
  dht.setup(DHT, DHTesp::DHT22);

  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS))
   {
      Serial.println(F("SSD1306 allocation failed"));
      for(;;); // Don't proceed, loop forever

      display.display();
  }
  delay(2000); // Pause for 2 seconds
      // Clear the buffer
      display.clearDisplay();
      display.setTextColor(WHITE);
      display.setCursor(30, 10);
      display.print("Hello USER");
      display.display();
}


void loop()
{
  
  TempAndHumidity  data = dht.getTempAndHumidity();

  if(data.temperature > 35)
  {
    digitalWrite(led, HIGH); 
    Blynk.virtualWrite(V4, HIGH);
    Blynk.virtualWrite(V8, HIGH);
    display.setCursor(80, 20);
    display.print("Fan : "+String + "ON");
  }

  if(data.temperature <= 35)
  {
    digitalWrite(led, LOW); 
    Blynk.virtualWrite(V4, LOW);
    Blynk.virtualWrite(V8, LOW);
    display.setCursor(80, 20);
    display.print("Fan : "+String + "OFF");
  }
  
    display.clearDisplay();
    display.setTextColor(WHITE);
    display.setTextSize(1);
    display.setCursor(30, 2);
    display.println("Thermometer");

    display.drawBitmap(2, 14, T, 18, 18, 1);
    display.setCursor(20, 20);
    display.print(String(data.temperature, 2) + " C");

    display.drawBitmap(2, 39, H, 18, 18, 1);
    display.setCursor(20, 45);
    display.print(String(data.humidity, 1) + " %");

    display.drawBitmap(65, 25, F, 18, 18, 1);
    

    display.display();

  delay(200);
  Blynk.run();
  timer.run();
  // You can inject your own code or combine it with other sketches.
  // Check other examples on how to communicate with Blynk. Remember
  // to avoid delay() function!
}