#include <WiFi.h>
#include <Blynk.h>
#include <Servo.h>

#define BLYNK_TEMPLATE_NAME "Fishhhh"
#define BLYNK_PRINT Serial
#define WOKWI_SIMULATION // Hapus baris ini jika menggunakan hardware nyata

// Deklarasi Servo
Servo myservo;
int servoPin = 13;

// Konfigurasi Waktu
#ifdef WOKWI_SIMULATION
  unsigned long virtualSeconds = 0;
  int virtualHours = 0;
  int virtualMinutes = 0;
#else
  #include <NTPClient.h>
  #include <WiFiUdp.h>
  WiFiUDP ntpUDP;
  NTPClient timeClient(ntpUDP, "pool.ntp.org", 7*3600); // UTC+7
#endif

// Jadwal Pakan
int feedTimes[] = {7, 16}; // 7AM dan 4PM
int lastFeedHour = -1;
bool isEnabled = true;

// Blynk Configuration
char auth[] = "TMPL6TQudCRm9"; // Ganti dengan token Blynk Anda
char ssid[] = "Wokwi-GUEST";      // Untuk Wokwi simulation
char pass[] = "";

BLYNK_WRITE(V0) { // Tombol Enable/Disable
  isEnabled = param.asInt();
}

BLYNK_WRITE(V1) { // Tombol Manual Feed
  if(param.asInt()) {
    feedNow();
  }
}

void setup() {
  Serial.begin(115200);
  myservo.attach(servoPin);
  
  #ifndef WOKWI_SIMULATION
    WiFi.begin(ssid, pass);
    while (WiFi.status() != WL_CONNECTED) delay(500);
    timeClient.begin();
  #endif
  
  Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  
  Serial.println("System Ready");
  Serial.println("Kontrol melalui Blynk atau Serial Monitor");
  Serial.println("Perintah Serial: FEED, ON, OFF, TIME [HH:MM]");
}

void loop() {
  Blynk.run();
  updateTime();
  
  if(isEnabled) {
    checkFeedingTime();
  }
  
  sendStatusToBlynk();
  checkSerialCommands();
  delay(1000);
}

void updateTime() {
  #ifdef WOKWI_SIMULATION
    virtualSeconds += 1;
    virtualHours = (virtualSeconds / 3600) % 24;
    virtualMinutes = (virtualSeconds / 60) % 60;
  #else
    timeClient.update();
  #endif
}

void checkFeedingTime() {
  int currentHour = getCurrentHour();
  
  for(int i = 0; i < 2; i++) {
    if(currentHour == feedTimes[i] && 
       getCurrentMinute() == 0 &&
       lastFeedHour != currentHour) {
      feedNow();
      lastFeedHour = currentHour;
    }
  }
}

int getCurrentHour() {
  #ifdef WOKWI_SIMULATION
    return virtualHours;
  #else
    return timeClient.getHours();
  #endif
}

int getCurrentMinute() {
  #ifdef WOKWI_SIMULATION
    return virtualMinutes;
  #else
    return timeClient.getMinutes();
  #endif
}

void feedNow() {
  Serial.println("Memberi pakan...");
  myservo.write(180);
  delay(1000);
  myservo.write(0);
  
  Blynk.virtualWrite(V2, getFormattedTime() + " - Terakhir diberi makan");
}

void sendStatusToBlynk() {
  Blynk.virtualWrite(V3, isEnabled ? "AKTIF" : "NON-AKTIF");
  Blynk.virtualWrite(V4, getFormattedTime());
}

String getFormattedTime() {
  #ifdef WOKWI_SIMULATION
    char buf[6];
    sprintf(buf, "%02d:%02d", virtualHours, virtualMinutes);
    return String(buf);
  #else
    return timeClient.getFormattedTime();
  #endif
}

void checkSerialCommands() {
  if(Serial.available()) {
    String input = Serial.readStringUntil('\n');
    input.trim();
    
    if(input.equalsIgnoreCase("FEED")) {
      feedNow();
    }
    else if(input.equalsIgnoreCase("ON")) {
      isEnabled = true;
      Blynk.virtualWrite(V0, 1);
    }
    else if(input.equalsIgnoreCase("OFF")) {
      isEnabled = false;
      Blynk.virtualWrite(V0, 0);
    }
    else if(input.startsWith("TIME ")) {
      setVirtualTime(input.substring(5));
    }
  }
}

void setVirtualTime(String timeStr) {
  #ifdef WOKWI_SIMULATION
    int colonIndex = timeStr.indexOf(':');
    if(colonIndex != -1) {
      int hh = timeStr.substring(0, colonIndex).toInt();
      int mm = timeStr.substring(colonIndex+1).toInt();
      
      virtualSeconds = (hh * 3600) + (mm * 60);
      Serial.print("Waktu diatur ke: ");
      Serial.println(timeStr);
    }
  #else
    Serial.println("Fitur ini hanya untuk simulasi Wokwi");
  #endif
}