// Smart Home Controlling System

// Thingspeak Server dB Public View: https://thingspeak.com/channels/2052162

// https://api.thingspeak.com/update?api_key=QS963Q0GCOTDY6GY&field1=

#include <WiFi.h>
#include "ThingSpeak.h" // always include thingspeak header file after other header files and custom macros

char ssid[] = "Wokwi-GUEST";   // your network SSID (name) 
char pass[] = "";   // your network password
int keyIndex = 0;            // your network key Index number (needed only for WEP)
WiFiClient  client;

// Weather station channel details
unsigned long weatherStationChannelNumber = 2052162;

int statusCode = 0;
int field[8] = {1,2,3,4};

int ch1 = 0;
int ch2 = 0;
int ch3 = 0;
int ch4 = 0;

#define ch1Pin 22
#define ch2Pin 21
#define ch3Pin 19
#define ch4Pin 18

void setup() {
  Serial.begin(115200);      // Initialize serial 

  // Pin Mode declaration
  pinMode(ch1Pin, OUTPUT);
  pinMode(ch2Pin, OUTPUT);
  pinMode(ch3Pin, OUTPUT);
  pinMode(ch4Pin, OUTPUT);

  while (!Serial) {  ;} // wait for serial port to connect. Needed for Leonardo native USB port only
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);  // Initialize ThingSpeak

  // Connect or reconnect to WiFi
  if(WiFi.status() != WL_CONNECTED){
    Serial.print("Attempting to connect to SSID: ");
    Serial.println("Wokwi");
    while(WiFi.status() != WL_CONNECTED){
      WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network. Change this line if using open or WEP network
      Serial.print(".");
      delay(5000);     
    } 
    Serial.println("WiFi Connected");
    delay(1000);
  }
  Serial.println("Welcome at Smart Home");
  delay(1000);
}

void loop() {
    
    // use ThingSpeak.readMultipleFields(channelNumber, readAPIKey) for private channels
    statusCode = ThingSpeak.readMultipleFields(weatherStationChannelNumber);
    
    if(statusCode == 200)
    {
      // Fetch the stored data
      ch1 = ThingSpeak.getFieldAsInt(field[0]); // Field 1
      ch2 = ThingSpeak.getFieldAsInt(field[1]); // Field 2
      ch3 = ThingSpeak.getFieldAsInt(field[2]); // Field 3
      ch4 = ThingSpeak.getFieldAsInt(field[3]); // Field 4
      
      Serial.println("Ch1: " + String(ch1));
      Serial.println("Ch2: " + String(ch2));
      Serial.println("Ch3: " + String(ch3));
      Serial.println("Ch4: " + String(ch4));
    }
    else{Serial.println("Problem reading channel. HTTP error code " + String(statusCode));}

    if (ch1 >= 1){digitalWrite(ch1Pin, HIGH);}
    if (ch1 == 0){digitalWrite(ch1Pin, LOW);}

    if (ch2 >= 1){digitalWrite(ch2Pin, HIGH);}
    if (ch2 == 0){digitalWrite(ch2Pin, LOW);}

    if (ch3 >= 1){digitalWrite(ch3Pin, HIGH);}
    if (ch3 == 0){digitalWrite(ch3Pin, LOW);}

    if (ch4 >= 1){digitalWrite(ch4Pin, HIGH);}
    if (ch4 == 0){digitalWrite(ch4Pin, LOW);}

    Serial.println();
    delay(5000); // no need to fetch too often
}

/*

https://api.thingspeak.com/update?api_key=QS963Q0GCOTDY6GY&field1=1&field2=0&field3=1&field4=0

*/