/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial

/* Fill in information from Blynk Device Info here */
#define BLYNK_TEMPLATE_ID "TMPL6l33Cd8jb"
#define BLYNK_TEMPLATE_NAME "HW2"
#define BLYNK_AUTH_TOKEN "RZsbvPOuk169Z5wYugpxaaD1KjGDuEPQ"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// VIRTUAL PINS (Matches Blynk Dashboard)
#define V_LED V0        // LED Widget
#define V_SW1 V1        // SW1 Status Widget
#define V_SW2 V2        // SW2 Status Widget
#define V_MOISTURE V3   // Potentiometer Gauge

// HARDWARE PINS (Matches Wokwi)
#define LED_PIN 15       
#define SW1_PIN 2    
#define SW2_PIN 0   
#define POT_PIN 34      

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

BlynkTimer timer;

// This function controls the LED 
BLYNK_WRITE(V_LED)
{
  int pinValue = param.asInt(); 
  digitalWrite(LED_PIN, pinValue);
}

// This function sends the Potentiometer data every 500ms
void sendSensor()
{
  int potValue = analogRead(POT_PIN);
  int moisturePercent = map(potValue, 0, 4095, 0, 100); 
  Blynk.virtualWrite(V_MOISTURE, moisturePercent);
}

void setup()
{
  Serial.begin(9600);

  // Hardware Setup
  pinMode(LED_PIN, OUTPUT);
  pinMode(SW1_PIN, INPUT_PULLUP); // LOW when pressed
  pinMode(SW2_PIN, INPUT_PULLUP); // LOW when pressed
  pinMode(POT_PIN, INPUT);

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  timer.setInterval(500L, sendSensor);
}

void loop()
{
  Blynk.run();
  timer.run();

  
  // If Pressed, Turn LED ON ("Open")
  if (digitalRead(SW1_PIN) == LOW) { 
    // Only turn ON if it is currently OFF 
    if (digitalRead(LED_PIN) == LOW) { 
       digitalWrite(LED_PIN, HIGH);
       Blynk.virtualWrite(V_LED, 1); // Update the App Button to "ON"
       Serial.println("SW1 Pressed: LED ON");
    }
  }

  // If Pressed, Turn LED OFF ("Closed")
  if (digitalRead(SW2_PIN) == LOW) { 
    // Only turn OFF if it is currently ON 
    if (digitalRead(LED_PIN) == HIGH) { 
       digitalWrite(LED_PIN, LOW);
       Blynk.virtualWrite(V_LED, 0); // Update the App Button to "OFF"
       Serial.println("SW2 Pressed: LED OFF");
    }
  }
}