#include <Arduino.h>
#include <Stepper.h>

// Variables
int pir = 0;
int soil = 0;
int prev_soil = LOW;
int prev_pir = LOW;
const int rotation = 100;

// Pin definitions
const int cam = 5;
const int pirPin = 13;
const int buzzer = 19;
const int soilPin = 35;
Stepper motor(rotation, 17, 16);

// Blynk
#define BLYNK_TEMPLATE_ID "TMPL6EpW42Ybx"
#define BLYNK_TEMPLATE_NAME "scpais"
#define BLYNK_AUTH_TOKEN "4L5ueZLfZh1ZbRyVeQdiLugVJswPfns-" // token Blynk 

#define BLYNK_PRINT Serial 

#include <WiFi.h> // Library WiFi
#include <WiFiClient.h> // Library WiFiClient
#include <BlynkSimpleEsp32.h> // Library BlynkESP32

char ssid[] = "Wokwi-GUEST"; // Nama WiFi yang digunakan
char pass[] = ""; // Password WiFi yang digunakan

BlynkTimer timer; // code push data 

void blynk() {
  Blynk.virtualWrite(V0, soil);

  if (pir == HIGH) {
    Blynk.virtualWrite(V1, 1); // blynk motion detect - ON
    Blynk.virtualWrite(V4, 0);
  } else {
    Blynk.virtualWrite(V1, 0); // blynk motion detect - OFF
    Blynk.virtualWrite(V4, 1);
  }

  if (soil <= 2000) {
    Blynk.virtualWrite(V2, 1); // blynk soil moisture detect - ON
    Blynk.virtualWrite(V3, 0);
  } else {
    Blynk.virtualWrite(V2, 0); // blynk soil moisture detect - OFF
    Blynk.virtualWrite(V3, 1);
  }
}

void setup() {
  // Blynk
  Serial.begin(115200); // Menginisiasi serial monitor
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  timer.setInterval(2000L, blynk);

  // Set pin modes
  pinMode(soilPin, INPUT);
  pinMode(pirPin, INPUT);
  pinMode(buzzer, OUTPUT);
  pinMode(cam, OUTPUT);

  // Initialize serial communication
  Serial.println("WELCOME TO SMART CROP PROTECTION AND IRRIGATION SYSTEM SIMULATION");
}

void loop() {
  pir = digitalRead(pirPin); // read motion 

  if (pir == HIGH) {    
    digitalWrite(cam, HIGH);
    digitalWrite(buzzer, HIGH);
    Blynk.logEvent("motion_detect"); // notification
    tone(buzzer, 1000); // Play a 1kHz tone on the buzzer

    if (prev_pir == LOW) {
      Serial.println("Motion detected!");
      Serial.println("Buzzer ON!");
      prev_pir = HIGH;
    }

    delay(15);

  } else {
    digitalWrite(cam, LOW);
    digitalWrite(buzzer, LOW);
    noTone(buzzer); // Stop the tone

    if (prev_pir == HIGH) {
      Serial.println("Motion ended!");
      Serial.println("Buzzer OFF!");
      prev_pir = LOW;
    }
  }

  soil = analogRead(soilPin); // read value soil moisture

  if (soil <= 2000) { // when value soil under 2000
    motor.step(rotation); // start the motor

    if (prev_soil == LOW) {
      Serial.print("value soil moisture : ");
      Serial.println(soil);
      Serial.println("Motor ON!");
      prev_soil = HIGH;
    }

    delay(10);

  } else {
    motor.step(0); // stop the motor

    if (prev_soil == HIGH) {
      Serial.print("value soil moisture : ");
      Serial.println(soil);
      Serial.println("Motor OFF!");
      prev_soil = LOW;
    }
  }

  Blynk.run();
  timer.run();
  delay(10);
}