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

int ledPin = 23; 
int ledPin2 = 22;      
int ledPin3 = 19;   
int ledPin4 = 18;   // choose the pin for the LED
int inputPin = 34; 
int inputPin2 = 15; 
int inputPin3 = 26;   
int inputPin4 = 27;              // choose the input pin (for PIR senso
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 = 2626043;
const char * myWriteAPIKey = "NGGEX97IDKAXT0RN";

int statusCode;

void setup() {
  pinMode(ledPin, OUTPUT);      // declare LED as output
    pinMode(inputPin, INPUT);     // declare sensor as input
       pinMode(ledPin2, OUTPUT);      // declare LED as 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);
                       Serial.print("Connecting to WiFi");
                         WiFi.begin("Wokwi-GUEST", "", 6);
                           while (WiFi.status() != WL_CONNECTED) {
                               delay(10);
                                   Serial.print(".");
                                     }
                                       Serial.println(" Connected!");
                                       ThingSpeak.begin(client);
                                       // connectToCloud();

                                       }


                                       void loop() {
                                        
                                          val = digitalRead(inputPin);
                                            val2 = digitalRead(inputPin2);
                                              val3 = digitalRead(inputPin3);
                                                val4 = digitalRead(inputPin4);  // read input value
                                                  if (val == HIGH) {            // check if the input is HIGH
                                                      digitalWrite(ledPin, HIGH);  // turn LED ON
                                                          if (pir[0] == 0) {
                                                                // we have just turned on
                                                                      Serial.println("Motion detected!");
                                                                            // We only want to print on the output change, not state
                                                                                  pir[0] = 1;
                                                                                         
                                                                                             }
                                                                                               } else {
                                                                                                   digitalWrite(ledPin, LOW); // turn LED OFF
                                                                                                       if (pir[0] == 1) {
                                                                                                             // we have just turned of
                                                                                                                   Serial.println("Motion ended!");
                                                                                                                         // We only want to print on the output change, not state
                                                                                                                              pir[0] = 0;
                                                                                                                                  }
                                                                                                                                    }

                                                                                                                                      if (val2 == HIGH) {            // check if the input is HIGH
                                                                                                                                          digitalWrite(ledPin2, HIGH);  // turn LED ON
                                                                                                                                              if (pir[1] == 0) {
                                                                                                                                                    // we have just turned on
                                                                                                                                                          Serial.println("Motion2 detected!");
                                                                                                                                                                // We only want to print on the output change, not state
                                                                                                                                                                      pir[1] = 1;
                                                                                                                                                                          }
                                                                                                                                                                            } else {
                                                                                                                                                                                digitalWrite(ledPin2, LOW); // turn LED OFF
                                                                                                                                                                                    if (pir[1] == 1) {
                                                                                                                                                                                          // we have just turned of
                                                                                                                                                                                                Serial.println("Motion2 ended!");
                                                                                                                                                                                                      // We only want to print on the output change, not state
                                                                                                                                                                                                           pir[1] = 0;
                                                                                                                                                                                                               }
                                                                                                                                                                                                                 }

                                                                                                                                                                                                                   if (val3 == HIGH) {            // check if the input is HIGH
                                                                                                                                                                                                                       digitalWrite(ledPin3, HIGH);  // turn LED ON
                                                                                                                                                                                                                           if (pir[2] == 0) {
                                                                                                                                                                                                                                 // we have just turned on
                                                                                                                                                                                                                                       Serial.println("Motion3 detected!");
                                                                                                                                                                                                                                             // We only want to print on the output change, not state
                                                                                                                                                                                                                                                   pir[2] = 1;
                                                                                                                                                                                                                                                       }
                                                                                                                                                                                                                                                         } else {
                                                                                                                                                                                                                                                             digitalWrite(ledPin3, LOW); // turn LED OFF
                                                                                                                                                                                                                                                                 if (pir[2] == 1) {
                                                                                                                                                                                                                                                                       // we have just turned of
                                                                                                                                                                                                                                                                             Serial.println("Motion3 ended!");
                                                                                                                                                                                                                                                                                   // We only want to print on the output change, not state
                                                                                                                                                                                                                                                                                         pir[2] = 0;
                                                                                                                                                                                                                                                                                             }
                                                                                                                                                                                                                                                                                               }
                                                                                                                                                                                                                                                                                                 if (val4 == HIGH) {            // check if the input is HIGH
                                                                                                                                                                                                                                                                                                     digitalWrite(ledPin4, HIGH);  // turn LED ON
                                                                                                                                                                                                                                                                                                         if (pir[3] == 0) {
                                                                                                                                                                                                                                                                                                               // we have just turned on
                                                                                                                                                                                                                                                                                                                     Serial.println("Motion3 detected!");
                                                                                                                                                                                                                                                                                                                           // We only want to print on the output change, not state
                                                                                                                                                                                                                                                                                                                                 pir[3] = 1;
                                                                                                                                                                                                                                                                                                                                     }
                                                                                                                                                                                                                                                                                                                                       } else {
                                                                                                                                                                                                                                                                                                                                           digitalWrite(ledPin4, LOW); // turn LED OFF
                                                                                                                                                                                                                                                                                                                                               if (pir[3] == 1) {
                                                                                                                                                                                                                                                                                                                                                     // we have just turned of
                                                                                                                                                                                                                                                                                                                                                           Serial.println("Motion3 ended!");
                                                                                                                                                                                                                                                                                                                                                                 // We only want to print on the output change, not state
                                                                                                                                                                                                                                                                                                                                                                       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) //successful writing code
                                                                                                                                                                                                                                                                                                                                                                                                                     Serial.println("Channel update successful.");
                                                                                                                                                                                                                                                                                                                                                                                                                             else
                                                                                                                                                                                                                                                                                                                                                                                                                                     Serial.println("Problem Writing data. HTTP error code :" +
                                                                                                                                                                                                                                                                                                                                                                                                                                             String(statusCode));
                                                                                                                                                                                                                                                                                                                                                                                                                                                   // data to be uploaded 
                                                                                                                                                                                                                                                                                                                                                                                                                                                       delay(15000); 
                                                                                                                                                                                                                                                                                                                                                                                                                                                       }

                                                                                                                                                                                                                                                                                                                                                                                                                                                       void connectToCloud(){
                                                                                                                                                                                                                                                                                                                                                                                                                                                        if(WiFi.status() != WL_CONNECTED)
                                                                                                                                                                                                                                                                                                                                                                                                                                                          {
                                                                                                                                                                                                                                                                                                                                                                                                                                                            Serial.print("Attempting to connect");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                while(WiFi.status() != WL_CONNECTED)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        WiFi.begin(ssid, pass); 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Serial.print(".");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                delay(5000);
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    }
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Serial.println("\nConnected.");
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        }  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        }