#define BLYNK_TEMPLATE_ID "TMPL2L1JAtM3R" // Define the Blynk template ID
#define BLYNK_TEMPLATE_NAME "ESP32 FINAL PROJECT" // Define the Blynk template name
#define BLYNK_AUTH_TOKEN "vbwqd0jSgHx8SR12pEOhHkTO03UNKGyk" // Define the Blynk authentication token

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial // Enable Serial output for debugging

#include <WiFi.h> // Include the WiFi library for ESP32
#include <BlynkSimpleEsp32.h> // Include the Blynk library for ESP32
#include <FlowSensor.h> // Include the flow sensor library

// Your WiFi credentials
char ssid[] = "Depa703"; // SSID where I made my project
char pass[] = "borgono10000"; // Password of the wifi network

// Flow sensor setup
FlowSensor Sensor(150, 8); // Create a flow sensor object with specific parameters

const int solenoidPinUP = 4; // Pin connected to the UP solenoid valve
const int solenoidPinUNDER = 2; // Pin connected to the UNDER solenoid valve
const int mosfetPinPump = 3; // Pin connected to the MOSFET for the pump

// Variables to control the solenoids and the pump from Blynk
bool solenoidUPState = false; // Initial state of the UP solenoid valve
bool solenoidUNDERState = false; // Initial state of the UNDER solenoid valve
bool pumpState = true; // Turn on the pump by default

void count() {
  Sensor.count(); // Increment the flow sensor counter
}

void setup() {
  // Debug console
  Serial.begin(115200); // Initialize the Serial communication at 115200 baud rate

  // Connect to Blynk
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); // Connect to Blynk using the authentication token and WiFi credentials

  // Initialize the flow sensor
  Sensor.begin(count); // Initialize the flow sensor with the count function

  // Set the pins as outputs and activate them
  pinMode(solenoidPinUP, OUTPUT); // Set the UP solenoid pin as an output
  pinMode(solenoidPinUNDER, OUTPUT); // Set the UNDER solenoid pin as an output
  pinMode(mosfetPinPump, OUTPUT); // Set the MOSFET pump pin as an output

  // Turn on the pump at the start
  digitalWrite(mosfetPinPump, HIGH); // Turn on the pump by setting the pin HIGH
}

// Blynk functions to handle the solenoid and pump switches
BLYNK_WRITE(V0) {
  solenoidUPState = param.asInt(); // Get the value from the Blynk app for the UP solenoid
  digitalWrite(solenoidPinUP, solenoidUPState); // Set the UP solenoid state
  Blynk.virtualWrite(V0, solenoidUPState); // Update the switch state in the Blynk dashboard
}

BLYNK_WRITE(V2) {
  solenoidUNDERState = param.asInt(); // Get the value from the Blynk app for the UNDER solenoid
  digitalWrite(solenoidPinUNDER, solenoidUNDERState); // Set the UNDER solenoid state
  Blynk.virtualWrite(V2, solenoidUNDERState); // Update the switch state in the Blynk dashboard
}

BLYNK_WRITE(V3) {
  pumpState = param.asInt(); // Get the value from the Blynk app for the pump
  digitalWrite(mosfetPinPump, pumpState); // Set the pump state
  Blynk.virtualWrite(V3, pumpState); // Update the switch state in the Blynk dashboard
}

void loop() {
  Blynk.run(); // Run the Blynk main loop
}