bool tam1=0;
bool tam2=0;
bool tam3=0;
bool tam4=0;


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

WiFiClient client;
WiFiServer server(80);

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

String  data =""; 


int relay1 = 14;     
int relay2 = 27;
int relay3 = 26;     
int relay4 = 25;  
void setup() {
  pinMode(relay1,OUTPUT);
  pinMode(relay2,OUTPUT);
  pinMode(relay3,OUTPUT);
  pinMode(relay4,OUTPUT);
  pinMode(21,INPUT_PULLUP);
  pinMode(19,INPUT_PULLUP);
  pinMode(18,INPUT_PULLUP);
  pinMode(5, INPUT_PULLUP);
  Serial.begin(115200);
  connectWiFi();
  server.begin();
}

void loop()
{
    /* If the server available, run the "checkClient" function */  
    client = server.available();
    if (!client) return; 
    data = checkClient ();
    Serial.println(data);

    if (data == "on1") turnonrelay(relay1);
    
    else if (data == "off1") turnoffrelay(relay1);
   
    else if (data == "on2") turnonrelay(relay2);
   
    else if (data == "off2") turnoffrelay(relay2);
} 

/********************************************* TURN ON RELAY *****************************************************/
void turnonrelay(int relay)
{
  digitalWrite(relay,HIGH);
  }
  
void turnoffrelay(int relay)
{
  digitalWrite(relay,LOW);
  }
/********************************** RECEIVE DATA FROM the APP ******************************************/
String checkClient (void)
{
  while(!client.available()) delay(1); 
  String request = client.readStringUntil('\r');
  Serial.println(request);
  request.remove(0, 5);
  Serial.println(request);
  request.remove(request.length()-9,9);
  Serial.println(request);
  return request;
}
void connectWiFi()
{
  Serial.println("Connecting to WIFI");
  WiFi.begin(ssid, password);
  while ((!(WiFi.status() == WL_CONNECTED)))
  {
    delay(300);
    Serial.print("..");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("NodeMCU Local IP is : ");
  Serial.print((WiFi.localIP()));
}