/*   DHT22   */
#include "DHTesp.h"               //Library DHT22
const int DHT_PIN = 15;           //Pin DHT22
DHTesp dhtSensor;

/*   Waktu dari NTP Server   */
#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     25200            //UTC +7 Indonesia
#define UTC_OFFSET_DST 0
struct tm timeinfo;

/*   Thingspeak   */
#include "ThingSpeak.h"                           //Library Thingspeak
const char* WriteAPIKey = "21ZMC1OA74UUBTRA";
const char* server = "api.thingspeak.com";
unsigned long ChannelNumber = 1618948;

/*   Wifi   */
#include <WiFi.h>                       //Library Wifi
const char* ssid = "Wokwi-GUEST";       //ID Wifi Wokwi
const char* pass = "";                  //Password Wifi Wokwi
WiFiClient client;

/*   LCD   */
#include <LiquidCrystal_I2C.h>          //Library LCD
#include <Wire.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

int counter, menit, menit_loop;
int kirim_data = 2;  

void printLocalTime() {
  if (!getLocalTime(&timeinfo)) {
    return;
  }

}

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  WiFi.begin(ssid, pass);
  ThingSpeak.begin(client);
  xTaskCreate(Waktu, "Menampilkan Waktu", 10000, NULL, 1, NULL);

  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");
  while(WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.println(".");
  }
  Serial.println("Wifi Connected!");
  Serial.println(WiFi.localIP());


  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
}

void loop() {
  getLocalTime(&timeinfo);
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("-------------------------------------------");
  delay(1000);

  menit = timeinfo.tm_min;
  if (menit != menit_loop) {
    counter++;
    if (counter == kirim_data) {
      ThingSpeak.setField(1, data.temperature);
      ThingSpeak.setField(2, data.humidity);
      int pengiriman = ThingSpeak.writeFields(ChannelNumber, WriteAPIKey);
      if (pengiriman == 200) {
        Serial.println("Data berhasil diupdate");          
      }
      else {
        Serial.println("Data gagal diupdate. HTP error " + String (pengiriman));  
      }
    counter = 0;
    }
  menit_loop = menit;
  }
  LCD.setCursor(0, 0);
  LCD.print("Temp: " + String(data.temperature, 2) + " C");
  LCD.setCursor(0, 1);
  LCD.print("Humidity: " + String(data.humidity, 1) + " %");
  delay(500);
}

void Waktu(void * parameter) {
  for(;;) {
    printLocalTime();
    delay(250);
  }
}