#include <WiFi.h>    
#include <HTTPClient.h>
#include <UrlEncode.h>

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

// +international_country_code + phone number
// Portugal +351, example: +351912345678
String phoneNumber = "+593983388011";
String apiKey = "4631173";

int Pulsador=12;
int LED=2;

void sendMessage(String message){

  // Data to send with HTTP POST
  String url = "http://api.callmebot.com/whatsapp.php?phone=" + phoneNumber + "&apikey=" + apiKey + "&text=" + urlEncode(message);    
  HTTPClient http;
  http.begin(url);

  // Specify content-type header
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  
  // Send HTTP POST request
  int httpResponseCode = http.POST(url);
  if (httpResponseCode == 200){
    Serial.print("Message sent successfully");
  }
  else{
    Serial.println("Error sending the message");
    Serial.print("HTTP response code: ");
    Serial.println(httpResponseCode);
  }

  // Free resources
  http.end();
}

void setup() {

  pinMode(Pulsador, INPUT);
  pinMode(LED, OUTPUT);

  Serial.begin(115200);

  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
    //Si la señal del pulsador es activa encendemos el led
  if (digitalRead(Pulsador) == HIGH) {
    digitalWrite(LED, HIGH);
    sendMessage("Se ha encendido la luz ahora");
  } 
  //de lo contrario apagamos el led
  else {
    digitalWrite(LED, LOW);
    sendMessage("LUZ APAGADA");
  }
  delay(10);
}