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

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;

unsigned long myChannelNumber = 2966573;
const char * myWriteAPIKey = "7M28RYM21PIEI3JZ";

int number = 0;

// GPIO onde o DS18B20 está conectado 
  const int OneWireBus = 5; 

// Configure uma instância oneWire para se comunicar com qualquer dispositivo One-Wire 
  OneWire oneWire(OneWireBus); 

// Passe nossa referência oneWire para o sensor de temperatura Dallas 
  DallasTemperature sensors(&oneWire); 



void setup() {
  
  Serial.begin(115200);  //Initialize serial
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo native USB port only
  }
  
  WiFi.mode(WIFI_STA);   
  ThingSpeak.begin(client);  // Initialize ThingSpeak

  // Inicia o DS18B20 sensor 
    sensors.begin(); 
}




void loop() {

  // Connect or reconnect to WiFi
  if(WiFi.status() != WL_CONNECTED){
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(SECRET_SSID);
    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("\nConnected.");
  }

  //Faz a leitura de temperatura do DS18B20:
    sensors.requestTemperatures(); 
    float temperaturaC = sensors.getTempCByIndex(0);




  // Write to ThingSpeak. There are up to 8 fields in a channel, allowing you to store up to 8 different
  // pieces of information in a channel.  Here, we write to field 1.
  int x = ThingSpeak.writeField(myChannelNumber, 1, temperaturaC, myWriteAPIKey);
  if(x == 200){
    Serial.println("Channel update successful.");
  }
  else{
    Serial.println("Problem updating channel. HTTP error code " + String(x));
  }
  
  delay(20000); // Wait 20 seconds to update the channel again
}