// #define BLYNK_TEMPLATE_ID "TMPL650TKoGCD"
// #define BLYNK_TEMPLATE_NAME "Wokwi Blynk"
// #define BLYNK_AUTH_TOKEN "yt-dQA1Id9a4RJmWS4hiSyqSyfHiDejc"

// #define SOUND_SPEED 0.034
// #define CM_TO_INCH 0.393701

// #define DHT22_PIN  21 // ESP32 pin GPIO21 connected to DHT22 sensor

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

// #include <DHT.h>

// DHT dht22(DHT22_PIN, DHT22);

// // Name of the router and password
// const char* ssid = "Wokwi-GUEST";
// const char* password = "";

// const int led = 14;

// const int trigPin = 19;
// const int echoPin = 18;

// long duration;
// float distanceCm;
// float distanceInch;

// //BlynkTimer initialize
// BlynkTimer timer;

// void setup() {
//   // put your setup code here, to run once:
//   Serial.begin(115200);

//   pinMode(led, OUTPUT);

//   pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
//   pinMode(echoPin, INPUT); // Sets the echoPin as an Input

// // Start wifi - 2 parameters (ssid & password)
// WiFi.begin(ssid, password);
// Serial.println("Connecting to WiFi");

// //Connection status
// while (WiFi.status() != WL_CONNECTED) {
//     delay(500);
//     Serial.print(".");
//   }

//   // Connection Info
//   Serial.println("");
//   Serial.println("WiFi connected!");
//   Serial.print("IP Address: ");
//   Serial.println(WiFi.localIP());

//   //3 parameter - Token, ssid, password
//   Blynk.begin(BLYNK_AUTH_TOKEN, ssid, password);
  
//   //2 parameter- 1. time(L-ms), 2. Method name
//   timer.setInterval(1000L, DistanceData);
// }

// void DistanceData() {

//   // Clears the trigPin
//   digitalWrite(trigPin, LOW);
//   delayMicroseconds(2);
//   // Sets the trigPin on HIGH state for 10 micro seconds
//   digitalWrite(trigPin, HIGH);
//   delayMicroseconds(10);
//   digitalWrite(trigPin, LOW);
  
//   // Reads the echoPin, returns the sound wave travel time in microseconds
//   duration = pulseIn(echoPin, HIGH);
  
//   // Calculate the distance
//   distanceCm = duration * SOUND_SPEED/2;
  
//   // Convert to inches
//   distanceInch = distanceCm * CM_TO_INCH;
  
//   // Prints the distance in the Serial Monitor
//   Serial.print("Distance (cm): ");
//   Serial.println(distanceCm);
  
//   //write Distance Data into Blynk
//   //2 parameter - 1.pin, 2.Value
//   Blynk.virtualWrite(V1, distanceCm);
// }

// //From Blynk to Wokwi we need to write the LED status
// //to write we always use this method
// BLYNK_WRITE(V0){
//   //get the status of the virtual switch V0
//   int status = param.asInt();
//   digitalWrite(led, status);

// }

// void loop() {
//   Blynk.run();
//   timer.run();

  
//   //delay(1000);
// }

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

// Define constants
#define DHTPIN 15
#define DHTTYPE DHT22
#define BUTTON_PIN 13
#define SERVO_PIN 26
#define WIFI_SSID "TMPL6WIaI86Rc"
#define BLYNK_TEMPLATE_NAME "Automatic Dress Hanger" 

// #define WIFI_PASSWORD "your_wifi_password"
// #define BLYNK_AUTH_TOKEN "your_blynk_auth_token"


#define BLYNK_TEMPLATE_ID "TMPL650TKoGCD"
#define BLYNK_TEMPLATE_NAME "Wokwi Blynk"
#define BLYNK_AUTH_TOKEN "yt-dQA1Id9a4RJmWS4hiSyqSyfHiDejc"

const char* ssid = "Wokwi-GUEST";
const char* pass = "";

//char auth[] = "FeA5DzSLXSmMVX7L4D3P_BBulUoGVPAu";  // Replace with your actual Blynk auth token
// char ssid[] = "Wokwi-GUEST";  // Wokwi simulation Wi-Fi
// char pass[] = "";

// Initialize objects
DHT dht(DHTPIN, DHTTYPE);                // DHT sensor
LiquidCrystal_I2C lcd(0x27, 16, 2);      // LCD 16x2 I2C display
Servo servo;                             // Servo motor

// Virtual Pins for Blynk
#define TEMP_PIN V2
#define HUM_PIN V3
#define WEATHER_STATE_PIN V1
// Global variables
float temperature = 0.0;
float humidity = 0.0;
int weatherState = 0;  // 0: Sunny, 1: Rainy

// Blynk setup
BlynkTimer timer;
// WiFi connection
void connectToWiFi() {
  Serial.print("Connecting to WiFi");
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("\nConnected to WiFi");
  Blynk.config(BLYNK_AUTH_TOKEN);
}

// Read DHT sensor and send data to Blynk
void readDHTSensor() {
  humidity = dht.readHumidity();
  temperature = dht.readTemperature();

if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Blynk.virtualWrite(TEMP_PIN, temperature);
  Blynk.virtualWrite(HUM_PIN, humidity);
}

// Control the servo based on weather state (pushbutton)
void controlServoAndLED() {
  int buttonState = digitalRead(BUTTON_PIN);
  
if (buttonState == HIGH) {
    // Rainy condition: move servo inside, LED ON
    servo.write(0);  // Servo moves to the inside position (example value)
    Blynk.virtualWrite(WEATHER_STATE_PIN, "Rainy");
    digitalWrite(LED_BUILTIN, HIGH);  // Turn LED on
  } else {
    // Sunny condition: move servo outside, LED OFF
    servo.write(90);  // Servo moves to the outside position (example value)
    Blynk.virtualWrite(WEATHER_STATE_PIN, "Sunny");
    digitalWrite(LED_BUILTIN, LOW);  // Turn LED off
}
}

// LCD display function
void updateLCD() {
  lcd.clear();
  lcd.setCursor(0, 0);
lcd.print("Temp: " + String(temperature) + "C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: " + String(humidity) + "%");

  if (weatherState == 1) {
    lcd.setCursor(0, 1);
    lcd.print("Rainy");
  } else {
    lcd.setCursor(0, 1);
    lcd.print("Sunny");
  }
}
// Setup function
void setup() {
  Serial.begin(115200);
  pinMode(BUTTON_PIN, INPUT);
  pinMode(LED_BUILTIN, OUTPUT);

  servo.attach(SERVO_PIN);  // Attach servo
  dht.begin();              // Start DHT sensor
  lcd.begin();              // Start LCD
  lcd.backlight();          // Turn on backlight

  connectToWiFi();

 timer.setInterval(2000L, readDHTSensor);  // Read DHT every 2 seconds
  timer.setInterval(1000L, controlServoAndLED);  // Check button every 1 second
  timer.setInterval(1000L, updateLCD);  // Update LCD every second
}

// Loop function
void loop() {
  Blynk.run();
  timer.run();
}