//Libary for temp and humidity sensor
#include <DHT.h>

// Pin definitions
#define SOIL_MOISTURE_PIN A0  // Analog pin for soil moisture sensor
#define LIGHT_SENSOR_PIN A1   // Analog pin for light sensor
#define DHT_PIN 2             // Digital pin for DHT22 sensor
#define PUMP_PIN 3            // Digital pin to control water pump

// Threshold values for different plants
const int MINT_SOIL_MOISTURE_THRESHOLD = 400;
const int OREGANO_SOIL_MOISTURE_THRESHOLD = 350;
const int CORIANDER_SOIL_MOISTURE_THRESHOLD = 450;
const float TEMPERATURE_MIN = 20.0;
const float TEMPERATURE_MAX = 25.0;

// DHT sensor setup
#define DHTTYPE DHT22
DHT dht(DHT_PIN, DHTTYPE);

// Variable to store selected plant
int selectedPlant = 0;  // 1 = Mint, 2 = Oregano, 3 = Coriander

void setup() {
  Serial.begin(9600);
  pinMode(PUMP_PIN, OUTPUT);
  digitalWrite(PUMP_PIN, LOW);  // Ensure pump is off initially

  dht.begin();

  // Display menu for plant selection
  Serial.println("Select the plant you want to grow:");
  Serial.println("1. Mint");
  Serial.println("2. Oregano");
  Serial.println("3. Coriander");

  while (selectedPlant == 0) {
    if (Serial.available()) {
      char input = Serial.read();
      if (input == '1') {
        selectedPlant = 1;
        Serial.println("You selected Mint.");
      } else if (input == '2') {
        selectedPlant = 2;
        Serial.println("You selected Oregano.");
      } else if (input == '3') {
        selectedPlant = 3;
        Serial.println("You selected Coriander.");
      } else {
        Serial.println("Invalid selection. Please enter 1, 2, or 3.");
      }
    }
  }

  Serial.println("Smart Flowerpot System Initialized.");
}

void loop() {
  // Read sensors
  int soilMoisture = analogRead(SOIL_MOISTURE_PIN);
  int lightLevel = analogRead(LIGHT_SENSOR_PIN);
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Determine soil moisture threshold based on selected plant
  int soilMoistureThreshold = 0;
  if (selectedPlant == 1) {
    soilMoistureThreshold = MINT_SOIL_MOISTURE_THRESHOLD;
  } else if (selectedPlant == 2) {
    soilMoistureThreshold = OREGANO_SOIL_MOISTURE_THRESHOLD;
  } else if (selectedPlant == 3) {
    soilMoistureThreshold = CORIANDER_SOIL_MOISTURE_THRESHOLD;
  }

  // Soil moisture check
  Serial.print("Soil Moisture: ");
  Serial.println(soilMoisture);
  if (soilMoisture < soilMoistureThreshold) {
    Serial.println("Soil moisture is low. Activating water pump...");
    digitalWrite(PUMP_PIN, HIGH);
    delay(5000);  // Pump runs for 5 seconds
    digitalWrite(PUMP_PIN, LOW);
  } else {
    Serial.println("Soil moisture is sufficient.");
  }

  // Environmental conditions check
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println("%");
  Serial.print("Light Level: ");
  Serial.println(lightLevel);

  if (temperature < TEMPERATURE_MIN || temperature > TEMPERATURE_MAX) {
    Serial.println("Warning: Temperature out of optimal range.");
  }

  // Delay before the next cycle
  delay(60000);  // 60 seconds
}