#include <WiFi.h>
#include <WiFiClient.h>
#include <PubSubClient.h>
// WOKWI
String wifiSSID = "Wokwi-GUEST"; 
String wifiPassword = "";
// ARDUINO IDE
//tring wifiSSID = "TP-Link_435E";
//tring wifiPassword = "17625357";
String mqttBroker = "broker.hivemq.com";
WiFiClient client;
PubSubClient mqtt(client);

void connectWifi();
void connect_mqtt();

#define SERVO_PIN 15
#define BUZZER_PIN 13
#define LOADCELL_DOUT_PIN 4
#define LOADCELL_SCK_PIN 5

#include <ESP32Servo.h>
#include <Wire.h>
#include <RTClib.h>
#include <HX711.h>
#include <LiquidCrystal_I2C.h>

// Initialize the I2C LCD with its address (0x27 for most displays) and dimensions (16x2)
LiquidCrystal_I2C lcd(0x27,16,2);

// Create a Servo object
Servo myservo;

// Create an RTC object
RTC_DS1307 rtc;

// Create an HX711 object
HX711 scale;

// Desired weight in grams
float targetWeight = 5;

int jam,menit,detik,tanggal,bulan,tahun,hari;
char temp[60];
char nama_hari[7][7] = {"Minggu","Senin","Selasa","Rabu","Kamis","Jumat","Sabtu"};

void setup() 
{
  Serial.begin(9600);
  connectWifi();
  mqtt.setServer(mqttBroker.c_str(), 1883);

  myservo.attach(15);
  myservo.write(0);

  // Set buzzer pin as output
  pinMode(BUZZER_PIN, OUTPUT);

  // Initialize I2C communication
  Wire.begin();

  lcd.backlight(); lcd.init();// Turn on the backlight (if available on your display)
  lcd.setCursor(0,0); lcd.print(" JAM DIGITAL ");
  if (!rtc.begin()) {
    lcd.setCursor(0,1); lcd.print(" TIDAK CONNECT ");
  }
  else {
    lcd.setCursor(0,1); lcd.print(" MAKAN ");
  }
  rtc.adjust(DateTime(2024,9,25,3,0,0));

  // Initialize RTC
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  
  // Check if RTC lost power and set the time
  if (!rtc.isrunning()) {
    Serial.println("RTC is not running, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  // Initialize HX711
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale();
  scale.tare();  // Reset the scale to 0
}

int x=0;

void loop() 
{
  if (!mqtt.connected()){
    connect_mqtt();
    Serial.println("MQTT Connected");
    mqtt.publish("frz/datatemp","ESP32 terhubung");
  }
  mqtt.loop();

  // Get current time
  DateTime now = rtc.now();
  //jam = now.hour();
  //menit = now.minute();
  //detik = now.second();
  //tanggal = now.day();
  //bulan = now.month();
  //tahun = now.year();
  //hari = now.dayOfTheWeek();

  // Define the time when you want the servo to activate (HH, MM, SS)
  int activateHour = 3;
  int activateMinute = 0;
  int activateSecond = 25;
  
  // Compare current time with activation time
  if (now.hour() == activateHour && now.minute() == activateMinute && now.second() == activateSecond) {
    // Activate the servo
    Serial.println("Activating Servo and Buzzer...");
    myservo.write(180); // Set servo to 90 degrees
    tone(BUZZER_PIN, 1000); // Start buzzer with 1000 Hz frequency
    
    // Continue dispensing until desired weight is reached
    while (scale.get_units() < targetWeight) {
      delay(100); // Check weight every 100 ms
    }

     // Deactivate the servo once the desired weight is reached
    myservo.write(0); // Set servo back to 0 degrees
    noTone(BUZZER_PIN); // Stop the buzzer
    Serial.println("Servo and Buzzer deactivated due to target weight reached.");
  }

   // sensor berat + kalibrasi
  scale.set_scale(); // Set ulang faktor kalibrasi jika diperlukan
  float Berat = scale.get_units(10) / 420.00;
  int weight = Berat * 1000;

  // Display time and weight on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(now.timestamp(DateTime::TIMESTAMP_TIME)); // Display time
  lcd.setCursor(0, 1);
  lcd.print("Weight: ");
  lcd.print(weight);
  lcd.print(" g"); // Display weight in grams

  // Wait for a moment before checking again
  delay(500); // Check every second
}

void connect_mqtt()
{
  while(!mqtt.connected()){
    Serial.println("Connecting MQTT...");
    if (mqtt.connect("frzESP32")){
      mqtt.subscribe("frz/datatemp");
    }
  }
}

void connectWifi()
{
  Serial.println("Connecting To Wifi");
  WiFi.begin(wifiSSID.c_str(), wifiPassword.c_str());
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.println(".");
    delay(500);
  }
  Serial.println("Wifi Connected");
  Serial.println(WiFi.SSID());
  Serial.println(WiFi.RSSI());
  Serial.println(WiFi.macAddress());
  Serial.println(WiFi.localIP());
  Serial.println(WiFi.gatewayIP());
  Serial.println(WiFi.dnsIP());
}