// Learn about the ESP32 WiFi simulation in
// https://docs.wokwi.com/guides/esp32-wifi

#include <OneWire.h>
#include <DallasTemperature.h>
#include <WiFi.h>
#include <LiquidCrystal_I2C.h>

#define tempsensor 33
#define led 19

const int oneWireBus = tempsensor;

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

const char* host = "api.thingspeak.com";
const char* APIkeyWrite = "";

OneWire oneWire(oneWireBus);
LiquidCrystal_I2C lcd(0x27, 16, 2);
DallasTemperature sensors(&oneWire);

void setup()
{
  sensors.begin();
  lcd.init();
  lcd.backlight();
  lcd.setCursor(1,0);
  lcd.print("Sensor de Temp.");
  pinMode(led, OUTPUT);
  pinMode(tempsensor, INPUT);
  digitalWrite(led, LOW);
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.print("Conectando-se ao WiFi...");
  while(WiFi.status() != WL_CONNECTED)
  {
    delay(100);
    Serial.print(".");
  }
  Serial.print("Ok. IP = ");
  Serial.println(WiFi.localIP());
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Conectou-se ao WiFi");
  delay(1000);
  lcd.clear();
}

void loop()
{
  sensors.requestTemperatures();
  float tempC = sensors.getTempCByIndex(0);
  lcd.setCursor(0,0);
  lcd.print("temp:");
  lcd.setCursor(6,0);
  lcd.print(tempC);

  if(WiFi.status() == WL_CONNECTED)
    digitalWrite(led, HIGH);
  else
    digitalWrite(led, LOW);
  
  WiFiClient client;
  const int httpPort = 80;

  if (!client.connect(host, httpPort))
  {
    return;
  }

  bool tempthreshold;
  lcd.setCursor(0,1);
  lcd.print("bom?:");
  lcd.setCursor(7,1);
  if(tempC <= 32.5 && tempC >= 20)
  {
    tempthreshold = true;
    lcd.print("Sim.");
  }
  else
  {
    tempthreshold = false;
    lcd.print("Nao.");
  }

  String url = "/update?api_key=";
  url += APIkeyWrite;
  url += "&field1=";
  url += String(tempC);
  url += "&field2=";
  url += String(tempthreshold);
  url += "\r\n";
  Serial.println(url);
  String endereco = String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "Connection: close\r\n\r\n";
  Serial.println(endereco);
  client.print(endereco);
  delay(15000);
  lcd.clear();
}