#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"
#include <LiquidCrystal_I2C.h>

const int DHT_PIN = 33;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const char* myApiKey = "G0UT9EEE1R1I9AHK";
const long unsigned int channelId = 2579162;
const char* server = "api.thingspeak.com";
// set the LCD number of columns and rows
int lcdColumns = 16;
int lcdRows = 2;

DHTesp dhtSensor;
WiFiClient client;

// set LCD address, number of columns and rows
// if you don't know your display address, run an I2C scanner sketch
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  


void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  
  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();

  lcd.setCursor(0, 0);
  // print message
  lcd.print("Connecting to WiFi!");

  WiFi.begin(WIFI_NAME, WIFI_PASSWORD, 6);

  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Wifi Connected");
  Serial.println("Wifi connected !");
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);


}

void loop() {
  lcd.clear();
  lcd.setCursor(0,0);

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1,data.temperature);
  ThingSpeak.setField(2,data.humidity);

  int x = ThingSpeak.writeFields(channelId,myApiKey);
  
  lcd.print("Temp: " + String(data.temperature, 2) + "°C");
  lcd.setCursor(1,0);
  lcd.print("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  
  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
  Serial.println("---");

  delay(10000);
}