//  BLYNK SECTION
#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL5cLt8TUee"
#define BLYNK_TEMPLATE_NAME "Temperature and Humidity detector"
#define BLYNK_AUTH_TOKEN "RYb-Qa0flTTYCIEb2ClE7HCCqyuC9Ufx"

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

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

// DHT22 SECTION
#include "DHTesp.h"
const int DHT_PIN = 27;
DHTesp dhtSensor;

// DEFINTING VARIABLES

int led         = 14;                         // The pin that the LED is attached to
int sensor      = 12;                         // The pin that the sensor is attached to
int state       = LOW;                        // By default, no motion detected
int prevState   = LOW;                        // Previous state of the sensor
int val         = 0;                          // Variable to store the sensor status (value)
String message  = "No Motion detected!";      // To show the message

// Setpoint and setHumi values (in degrees Celsius)
float setTemp = 0;
float setHumi = 0;
float currentTemp = 0;
float currentHumi = 0;

// define the GPIO connected with Relays and Buttons
#define RelayPin1 25  //D25
#define RelayPin2 26  //D26

// Push button
#define ButtonPin1 4  //D4

//Change the virtual pins according the rooms
#define VPIN_LED            V3
#define VPIN_Mode           V2
#define VPIN_setTemp        V1
#define VPIN_setHumi        V0

// Relay and Mode State
bool VPIN_LedState        = led;                  //Define integer to remember the mode


BLYNK_CONNECTED(){
  Blynk.syncVirtual(VPIN_LED);
  // Blynk.syncVirtual(VPIN_setHumi);



}

BLYNK_WRITE(VPIN_LED) {
  VPIN_LedState = param.asInt();
  Blynk.virtualWrite(VPIN_LED, VPIN_LedState); // Send modeState to Blynk server
}

// BLYNK_WRITE(VPIN_setTemp) {
//   setTemp = param.asFloat();
//   Blynk.virtualWrite(VPIN_setTemp, setTemp);
// }

// BLYNK_WRITE(VPIN_setHumi) {
//   setHumi = param.asFloat();
//   Blynk.virtualWrite(VPIN_setHumi, setHumi);
// }

void setup() {
  
  Serial.begin(115200);                       // Initialize serial
  Blynk.begin(auth, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);    // Getting data from the sensor
  pinMode(led, OUTPUT);                       // Initialize LED as an output
  pinMode(sensor, INPUT);                     // Initialize sensor as an input
  pinMode(RelayPin1, OUTPUT);
  pinMode(RelayPin2, OUTPUT);
  pinMode(ButtonPin1, INPUT_PULLUP);
  
}

void loop(){
  val = digitalRead(sensor);                  // read sensor value
  
  if (val == HIGH && prevState == LOW) {      // check if the sensor went from LOW to HIGH
    digitalWrite(led, HIGH);                  // turn LED ON
    VPIN_LedState = HIGH;                     // update VPIN_LedState
    message = "Motion detected!"; 
    state   = HIGH;                           // update variable state to HIGH
  } 
  
  if (val == LOW && prevState == HIGH) {      // check if the sensor went from HIGH to LOW
    digitalWrite(led, LOW);                   // turn LED OFF
    VPIN_LedState = LOW;                     // update VPIN_LedState
    message = "No Motion detected!"; 
    state = LOW;                              // update variable state to LOW
  }
  
  prevState = val;                            // update previous state of the sensor
    // Update the Blynk LED widget to reflect the state of the physical LED
  Blynk.virtualWrite(VPIN_LED, VPIN_LedState);

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("Motion: " + message);
  Serial.println("---");
  delay(2000); // Wait for a new reading from the sensor (DHT22 has ~0.5Hz sample rate)
}