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

int ledPin = 2;
int ledPin2 = 4;
int ledPin3 = 5;
int ledPin4 = 19;
int inputPin = 13;
int inputPin2 = 12;
int inputPin3 = 14;
int inputPin4 = 26;
int val = 0;
int val2 = 0;
int val3 = 0;
int val4 = 0;

DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 33;

char ssid[] ="Wokwi-GUEST";
char pass[] ="";
int pir[]={0,0,0,0};
WiFiClient client;
unsigned long myChannelNumber =  2654558;
const char * myWriteAPIKey = "LRQ9CFG0QWLTWDJB";

int statusCode;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(inputPin, INPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(inputPin2, INPUT);
  pinMode(ledPin3, OUTPUT);
  pinMode(inputPin3, INPUT);
  pinMode(ledPin4, OUTPUT);
  pinMode(inputPin4, INPUT);

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  Serial.begin(9600);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);

}


void loop() {
  connectToCloud();
  val = digitalRead(inputPin);
  val2 = digitalRead(inputPin2);
  val3 = digitalRead(inputPin3);
  val4 = digitalRead(inputPin4);
  if (val == HIGH) {
    digitalWrite(ledPin, HIGH);
    if (pir[0] == 0) {

      Serial.println("Motion detected !");

      pir[0] = 1;

    }
  } else {
    digitalWrite(ledPin, LOW);
    if (pir[0] == 1) {
      
      Serial.println("Motion ended !");

      pir[0] = 0;
    }
  }

  if (val2 == HIGH) { 
    digitalWrite(ledPin2, HIGH);
    if (pir[1] == 0) {

      Serial.println("Motion2 detected !");

      pir[1] = 1;
    }
  } else {
    digitalWrite(ledPin2, LOW);
    if (pir[1] == 1) {

      Serial.println("Motion2 ended !");

      pir[1] = 0;
    }
  }

  if (val3 == HIGH) {
    digitalWrite(ledPin3, HIGH);
    if (pir[2] == 0) {

      Serial.println("Motion3 detected !");

      pir[2] = 1;
    }
  } else {
    digitalWrite(ledPin3, LOW);
    if (pir[2] == 1) {

      Serial.println("Motion3 ended !");

      pir[2] = 0;
    }
  }
  if (val4 == HIGH) {
    digitalWrite(ledPin4, HIGH);
    if (pir[3] == 0) {

      Serial.println("Motion3 detected !");

      pir[3] = 1;
    }    
  } else {
    digitalWrite(ledPin4, LOW);
    if (pir[3] == 1) {

      Serial.println("Motion3 ended !");

      pir[3] = 0;
    }
  }


  for (int i=0;i<4;i++) {

    ThingSpeak.setField(i+1 , pir[i]);
  }
  data = dhtSensor.getTempAndHumidity();
   Serial.println("Humi: " + String(data.humidity));
   Serial.println("Temp: " + String(data.temperature));
  ThingSpeak.setField(5 ,data.humidity);
  ThingSpeak.setField(6,data.temperature);
          statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
          if(statusCode == 200)
          Serial.println("channel update successful.");
          else 
          Serial.println("problem Writing data. HTTP error code : " +
           String(statusCode));

           delay(15000);
}   

void connectToCloud(){
if(WiFi.status() !=WL_CONNECTED) {
  Serial.print("Attempting to connect");
  while(WiFi.status() != WL_CONNECTED) {
  WiFi.begin(ssid, pass);
  for(int i=0;i<5;i++) {
  Serial.print(".");
  delay(1000);
  }
  }
  Serial.println("\nConnected.");
}
}