#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);
#include <WiFi.h>
#include <PubSubClient.h>
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <ArduinoJson.h>

char auth[] = "OSRk1DVmpSqLdf40zT4liHQppNs6A0r3";

char ssid[] = "Wokwi-GUEST";
char pass[] = "";

char clientId[50];

WiFiClient espClient;
PubSubClient client(espClient);
static char strDetection[10] = {0};

int value = 0;
int state = 0;

BlynkTimer timer;

int ledPin = 15;                // Deklarasi variabel input pin LED
int inputPin = 14;               // Deklarasi variabel input pin Sensor PIR
int buzzerPin = 2;
int pirState = LOW;             // Pada saat memulai, Sensor PIR dimulai dari LOW
int val = 0;                    // Deklarasi variabel untuk membaca status pin
int bacaSensor = digitalRead(inputPin);

void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass,"o.tcp.ap.ngrok.io",16816);
  // timer.setInterval(16000L, notifySensor);
  pinMode(ledPin, OUTPUT);      // Deklarasi LED sebagai Output
  pinMode(inputPin, INPUT);     // Deklarasi Sensor PIR sebagai Input
  pinMode(buzzerPin, OUTPUT);

  // Program Awal LCD
  LCD.init();
  LCD.backlight();
  LCD.setCursor(1,0);
  LCD.print("  KELOMPOK IOT  ");
  LCD.setCursor(1,1);
  LCD.print("  Diblox   ");
  delay (500);

  LCD.clear();
  LCD.setCursor(1,0);
  LCD.print("SISTEM PEMANTAU KEAMANAN");
  LCD.setCursor(1,1);
  LCD.print("KEAMANAN RUMAH");
  delay (500);

  LCD.clear();
  LCD.setCursor(1,0);
  LCD.print("    MULAI     ");
  delay(700);
  LCD.clear();

  WiFi.mode(WIFI_STA);
  WiFi.begin("Wokwi-GUEST", "");
  client.setServer("0.tcp.ap.ngrok.io", 14138);
  Serial.begin(9600);
  
}

void mqttReconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    if (client.connect(clientId)) {
      Serial.println(" connected");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void loop() {
  Blynk.run();
  timer.run();
  value = digitalRead(14);
  if (!client.connected()) {
    mqttReconnect();
  }
  if (value) {
    Blynk.virtualWrite(V0, "TERDETEKSI ");
    Blynk.virtualWrite(V1, "GERAKAN");
    Serial.println("Pintu ada yang buka!");
    // Blynk.email("[email protected]","NOTIF EMAIL","PINTU ADA YANG BUKA BANG!!");
    Blynk.notify("Notif : Pintu ada yang buka!");
     Serial.println("TERDETEKSI GERAKAN");
    client.publish("topicName/detection","TERDETEKSI GERAKAN");
    delay(3000);
    StaticJsonDocument <256> doc;

  doc["Sensor"] = "TERDETEKSI GERAKAN";
  doc["Sensor2"] = "";
  String serial1;

  serializeJson(doc, serial1);
  char ser[serial1.length() + 1];
        serial1.toCharArray(ser, serial1.length() + 1);

  client.publish("topik/oye", ser);
  }
  else{
    Blynk.virtualWrite(V0, "TIDAK TERDETEKSI ");
    Blynk.virtualWrite(V1, "GERAKAN");
    Serial.println("Pintu tertutup");
    Serial.println("TIDAK TERDETEKSI GERAKAN");
    client.publish("topicName/detection","TIDAK TERDETEKSI GERAKAN");
    delay(3000);
    StaticJsonDocument <256> dok;
    dok["Sensor"] = "";
    dok["Sensor2"] = "TIDAK TERDETEKSI GERAKAN";
    String serial2;

  serializeJson(dok, serial2);
  char sek[serial2.length() + 1];
        serial2.toCharArray(sek, serial2.length() + 1);

  client.publish("topik/oye", sek);
  }
  
  client.loop();
 
  // Serial.println(value);
  sprintf(strDetection, "%d", value);

  val = digitalRead(inputPin);  // Membaca nilai input
  if (val == LOW) {            // Jika Input LOW, maka :
    digitalWrite(ledPin, LOW);  // LED tidak menyala
    if (pirState == LOW) {
      // Jika, input LOW maka akan LCD akan mengeluarkan output "TIDAK TERDETEKSI GERAKAN"
      LCD.init();
      LCD.backlight();
      LCD.setCursor(0,0);
      LCD.print("TIDAK TERDETEKSI");
      LCD.setCursor(0,1);
      LCD.print("    GERAKAN    ");
      // Output program akan terganti, jika input bernilai HIGH
      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, HIGH); // Menuliskan nilai LED/output bernilai HIGH
    if (pirState == HIGH) {  // Jika Input HIGH, maka :
       // Jika, input HIGH maka akan LCD akan mengeluarkan output "TERDETEKSI GERAKAN"
      LCD.init();
      LCD.init();
      LCD.backlight();
      LCD.setCursor(0,0);
      LCD.print("   TERDETEKSI   ");
      LCD.setCursor(0,1);
      LCD.print("    GERAKAN    ");
      // Output program akan terganti, jika input bernilai LOW
      tone(buzzerPin, 900,1000);  
      delay(50); 
      tone(buzzerPin, 900,1000);  
      delay(50); 
      tone(buzzerPin, 900,1000);  
      delay(50); 
      pirState = LOW;
    }
  }
  
}