#include "DHTesp.h"
#include <LiquidCrystal_I2C.h>
#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

const int DHT_PIN = 15;

#include <WiFi.h>
#include <Wire.h>

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 16, 2);

#define LED_PIN_R 27
#define LED_PIN_G 26
#define LED_PIN_B 25

#define BUZZER_PIN 5

#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     0
#define UTC_OFFSET_DST 0


void spinner() {
  static int8_t counter = 0;
  const char* glyphs = "\xa1\xa5\xdb";
  lcd.setCursor(15, 1);
  lcd.print(glyphs[counter++]);
  if (counter == strlen(glyphs)) {
    counter = 0;
  }
}

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    lcd.setCursor(0, 1);
    lcd.println("Connection Err");
    return;
  }

  lcd.setCursor(0, 0);
  lcd.println(&timeinfo, "%H:%M %d/%m/%y");

  //lcd.setCursor(0, 1);
  //lcd.println(&timeinfo, "%d/%m/%Y   %Z");
}


DHTesp dhtSensor;

//LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {

  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  lcd.init();
  lcd.backlight();  
  pinMode(LED_PIN_R, OUTPUT);
  pinMode(LED_PIN_G, OUTPUT);
  pinMode(LED_PIN_B, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  lcd.setCursor(0, 0);
  lcd.print("Connecting to ");
  lcd.setCursor(0, 1);
  lcd.print("WiFi ");

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    spinner();
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  lcd.clear();
  /*
  lcd.setCursor(0, 0);
  lcd.println("Online");
  lcd.setCursor(0, 1);
  lcd.println("Updating time...");
  */

  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);

  pinMode(4, OUTPUT);
  
}

void loop() {

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 1) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");

   if (data.temperature > 33){
    Serial.println(" TOO HOT!");
   } else if (data.temperature < 25){
    Serial.println(" TOO COLD!");
   }else {
    Serial.println("Normal Temp");
    }

  Serial.println("---");
  
  lcd.clear();
  lcd.setCursor(0, 0);
  printLocalTime();
  lcd.setCursor(0, 1);
  if (data.temperature > 32){
    lcd.print(" TOO HOT!");
  // Turn on the Red LED
  digitalWrite(LED_PIN_R, HIGH);
  digitalWrite(LED_PIN_G, LOW);
  digitalWrite(LED_PIN_B, LOW);
  digitalWrite(4, HIGH);
  //digitalWrite(BUZZER_PIN, HIGH);
  tone(BUZZER_PIN, 31);

  delay(1000); // Wait for 1 second

  
  }else if (data.temperature < 25){
    lcd.print(" TOO COLD!");
    // Turn on the Blue LED
  digitalWrite(LED_PIN_R, LOW);
  digitalWrite(LED_PIN_G, LOW);
  digitalWrite(LED_PIN_B, HIGH);
  digitalWrite(4, LOW);

  //digitalWrite(BUZZER_PIN, HIGH);
  tone(BUZZER_PIN, 31);

  delay(1000); // Wait for 1 second
  }
  else {
    lcd.print("Normal Temp");
  // Turn on the Green LED
  digitalWrite(LED_PIN_R, LOW);
  digitalWrite(LED_PIN_G, HIGH);
  digitalWrite(LED_PIN_B, LOW);
  digitalWrite(4, LOW);

  //digitalWrite(BUZZER_PIN, LOW);
  noTone(BUZZER_PIN);
 delay(1000); // Wait for 1 second
  }
  //delay(500);
  
 // lcd.print("Wokwi Online IoT");

  lcd.setCursor(0, 0);
  lcd.print("Temp: " + String(data.temperature, 1) + "\xDF"+"C  ");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: " + String(data.humidity, 1) + "% ");
 

  delay(2000);
  //lcd.clear();
}