#include <Servo.h>
#include <SPI.h>
#include <WiFiNINA.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>

Servo doorLock; // Servo object to control the door lock
const int buttonPin = 2; // Pin connected to the push button
const int ledPin = 13; // Pin connected to the LED
bool readyForInput = false; // Flag to check if we are ready for input
unsigned long lastDebounceTime = 0; // the last time the output pin was toggled
unsigned long debounceDelay = 50; // the debounce time; increase if the output flickers

int familyMembers[] = {1, 7, 4, 9}; // Array of recognized family member codes
int numFamilyMembers = 4; // Number of family members

const char* ssid = "wokvi-GUEST";
const char* password = "";
const char* apiKey = "AIzaSyAoxDceQvzB8OZ5u69E3GzudVwfu-ItCL0";
const char* calendarId = "7a11207b2e0d3dd81078b9cb54d88e616a67834b885d5f53e3464a2c6b3eb50a@group.calendar.google.com";

void setup() {
  doorLock.attach(9); // Attach servo to pin 9
  pinMode(buttonPin, INPUT_PULLUP); // Set button pin as input with pull-up resistor
  pinMode(ledPin, OUTPUT); // Set LED pin as output
  doorLock.write(0); // Make sure the door is initially closed
  Serial.begin(9600);
  Serial.println("System ready. Press button to enter a code.");

  connectToWiFi();
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    scheduleAppointment("Family Meeting", "2024-04-25T10:00:00", "2024-04-25T11:00:00");
    delay(60000); // Wait for 1 minute before scheduling the next appointment
  }
}

void connectToWiFi() {
  Serial.println("Connecting to WiFi...");
  while (WiFi.begin(ssid, password) != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void processCode(int code) {
  bool isRecognized = false;
  for (int i = 0; i < numFamilyMembers; i++) {
    if (code == familyMembers[i]) {
      isRecognized = true;
      break;
    }
  }

  if (isRecognized) {
    Serial.print("Code ");
    Serial.print(code);
    Serial.println(" recognized. Opening door...");
    openDoor();
    delay(5000); // Keep the door open for 5 seconds
  } else {
    Serial.print("Code ");
    Serial.print(code);
    Serial.println(" NOT recognized. Access Denied.");
    accessDenied();
  }
  closeDoor(); // Always close the door after action
}

void openDoor() {
  doorLock.write(90); // Open the door
  digitalWrite(ledPin, HIGH); // Turn on the LED to indicate door is open
}

void closeDoor() {
  doorLock.write(0); // Close the door
  digitalWrite(ledPin, LOW); // Turn off the LED
}

void accessDenied() {
  for (int i = 0; i < 5; i++) { // Blink LED to indicate access denied
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(200);
  }
}

void scheduleAppointment(const char* summary, const char* startDateTime, const char* endDateTime) {
  WiFiClient client;

  String url = "https://www.googleapis.com/calendar/v3/calendars/" + String(calendarId) + "/events?key=" + String(apiKey);

  HTTPClient http;
  http.begin(client, url);
  http.addHeader("Content-Type", "application/json");

  // Create JSON object for the request body
  StaticJsonDocument<200> doc;
  doc["summary"] = summary;
  doc["start"]["dateTime"] = startDateTime;
  doc["end"]["dateTime"] = endDateTime;

  String requestBody;
  serializeJson(doc, requestBody);

  int httpResponseCode = http.POST(requestBody);
  if (httpResponseCode > 0) {
    String response = http.getString();
    Serial.println("Appointment scheduled:");
    Serial.println(response);
  } else {
    Serial.print("Error scheduling appointment. HTTP error code: ");
    Serial.println(httpResponseCode);
  }

  http.end();
}