// Define Blynk print to Serial
#define BLYNK_PRINT Serial
// Define Blynk template ID
#define BLYNK_TEMPLATE_ID "TMPL6CJwjMPS0"
// Define Blynk template name
#define BLYNK_TEMPLATE_NAME "CS Rakha Argya Zahran IOT9"
// Define Blynk auth token
#define BLYNK_AUTH_TOKEN "HW5qkrbrz_myFamlygcqgLgOOoq5pbA4"

// Include necessary libraries
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// Define auth array
char auth[] = BLYNK_AUTH_TOKEN;
// Define SSID array
char ssid[] = "Wokwi-GUEST";
// Define pass array
char pass[] = "";

// Define struct Data
struct Data {
 int temperature;
 int fanSpeed;
} data;

// Define virtual pins
#define VIRTUAL_PIN_LED V1
#define VIRTUAL_PIN_DATA V2
#define VIRTUAL_PIN_POWER_BTN V3
#define VIRTUAL_PIN_TEMP_BTN V4
#define VIRTUAL_PIN_FAN_SPEED_BTN V5

// Define last temperature and fan speed
int lastTemperature = 25;
int lastFanSpeed = 0;

// Define setup function
void setup()
{
 // Start serial communication
 Serial.begin(9600);
 // Start Blynk
 Blynk.begin(auth, ssid, pass);
 // Set LED_BUILTIN as output
 pinMode(BUILTIN_LED, OUTPUT);
 // data.temperature = 25;
 // Blynk.virtualWrite(VIRTUAL_PIN_TEMP_BTN, 25);
 // Blynk.virtualWrite(VIRTUAL_PIN_DATA, String(data.temperature) + "°C, ");
 // data.fanSpeed = 0;
}

// Define loop function
void loop()
{
 // Run Blynk
 Blynk.run();
}

// Define BLYNK_WRITE for VIRTUAL_PIN_POWER_BTN
BLYNK_WRITE(VIRTUAL_PIN_POWER_BTN)
{
 // Define pinValue
 int pinValue = param.asInt();
 // If pinValue is 1
 if (pinValue == 1) {
 // Turn on LED_BUILTIN
 digitalWrite(LED_BUILTIN, HIGH);
 // Print "Power: ON" to Serial
 Serial.println("Power: ON");
 // Write 1 to VIRTUAL_PIN_LED
 Blynk.virtualWrite(VIRTUAL_PIN_LED, 1);
 // Set data.temperature to lastTemperature
 data.temperature = lastTemperature;
 // Set data.fanSpeed to lastFanSpeed
 data.fanSpeed = lastFanSpeed;
 // Write lastTemperature to VIRTUAL_PIN_TEMP_BTN
 Blynk.virtualWrite(VIRTUAL_PIN_TEMP_BTN, lastTemperature);
 // Write lastFanSpeed to VIRTUAL_PIN_FAN_SPEED_BTN
 Blynk.virtualWrite(VIRTUAL_PIN_FAN_SPEED_BTN, lastFanSpeed);
 } else {
 // Turn off LED_BUILTIN
 digitalWrite(LED_BUILTIN, LOW);
 // Print "Power: OFF" to Serial
 Serial.println("Power: OFF");
 // Write 0 to VIRTUAL_PIN_LED
 Blynk.virtualWrite(VIRTUAL_PIN_LED, 0);
 // Set lastTemperature to data.temperature
 lastTemperature = data.temperature;
 // Set lastFanSpeed to data.fanSpeed
 lastFanSpeed = data.fanSpeed;
 }
}

// Define BLYNK_WRITE for VIRTUAL_PIN_TEMP_BTN
BLYNK_WRITE(VIRTUAL_PIN_TEMP_BTN)
{
 // If LED_BUILTIN is HIGH
 if (digitalRead(BUILTIN_LED) == HIGH) {
 // Define pinValue
 int pinValue = param.asInt();
 // Set data.temperature to pinValue
 data.temperature = pinValue;
 // Print "Temperature: " + data.temperature to Serial
 Serial.println("Temperature: " + String(data.temperature));
 // Write data.temperature + "°C, " + data.fanSpeed to VIRTUAL_PIN_DATA
 Blynk.virtualWrite(VIRTUAL_PIN_DATA, String(data.temperature) + "°C, ", String(data.fanSpeed));
 }
}

// Define BLYNK_WRITE for VIRTUAL_PIN_FAN_SPEED_BTN
BLYNK_WRITE(VIRTUAL_PIN_FAN_SPEED_BTN)
{
 // If LED_BUILTIN is HIGH
 if (digitalRead(BUILTIN_LED) == HIGH) {
 // Define pinValue
 int pinValue = param.asInt();
 // Set data.fanSpeed to pinValue
 data.fanSpeed = pinValue;
 // Print "Fan Speed: " + data.fanSpeed to Serial
 Serial.println("Fan Speed: " + String(data.fanSpeed));
 // Write data.temperature + "°C, " + data.fanSpeed to VIRTUAL_PIN_DATA
 Blynk.virtualWrite(VIRTUAL_PIN_DATA, String(data.temperature) + "°C, ", String(data.fanSpeed));
 }
}