added authentication to the bot. added bot commnads. added create button for when the db is empty or no data is available to show.

bot/handlers/students.py

@@ -1,13 +1,18 @@
 import logging
-from telebot import types
-from database.models import Students
+from telebot import types, TeleBot
+from database.models import Students, Admins
 
 logger = logging.getLogger(__name__)
 
 
-def register(bot):
+def register(bot: TeleBot):
     @bot.message_handler(func=lambda message: message.text == "Show Students")
     def get_students(message):
+        if not Admins.is_authenticated(message.from_user.id):
+            bot.send_message(
+                message.chat.id, "⛔ Unauthorized access!\nPlease /login first.")
+            return
+
         try:
             data = Students.getAllStudents()
             if data:
@@ -20,12 +25,15 @@ def register(bot):
 
                 # add button for creating a new student
                 markup.add(types.InlineKeyboardButton(
-                    "➕ Create New Student", callback_data="create_student"))
+                    "➕ Create New Student 🔒", callback_data="create_student"))
 
                 bot.send_message(
                     message.chat.id, "Here is the data:", reply_markup=markup)
             else:
-                bot.reply_to(message, "No data found.")
+                markup = types.InlineKeyboardMarkup(row_width=1)
+                markup.add(types.InlineKeyboardButton(
+                    "➕ Create New Student 🔒", callback_data="create_student"))
+                bot.reply_to(message, "No data found.", reply_markup=markup)
         except Exception as e:
             logger.error(f"Error in get_students handler: {e}")
             bot.reply_to(message, "Sorry, an error occurred.")