feat(id-handler): add /id command to retrieve chat and user IDs

- Implemented a new handler for the /id command that responds with the current chat ID and user ID.
- Integrated the ID handler into the main application initialization process.

Author: MattiaFailla

src/python_italy_bot/handlers/id.py

@@ -0,0 +1,21 @@
+"""ID handler: returns chat and user IDs."""
+
+from telegram import Update
+from telegram.ext import CommandHandler, ContextTypes
+
+
+def create_id_handlers() -> list:
+    """Create the /id command handler."""
+    return [CommandHandler("id", _handle_id)]
+
+
+async def _handle_id(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
+    """Reply with the current chat ID and user ID."""
+    chat = update.effective_chat
+    user = update.effective_user
+    message = update.message
+
+    if chat is None or user is None or message is None:
+        return
+
+    await message.reply_text(f"ID chat: {chat.id}\nID utente: {user.id}")

src/python_italy_bot/main.py

@@ -6,6 +6,7 @@
 
 from .config import Settings
 from .db import create_repository
+from .handlers.id import create_id_handlers
 from .handlers.moderation import create_moderation_handlers
 from .handlers.spam import create_spam_handler
 from .handlers.welcome import create_welcome_handlers
@@ -43,6 +44,8 @@ async def _post_init(application) -> None:
     application.add_handler(create_spam_handler(spam_detector))
     for handler in create_moderation_handlers(moderation_service):
         application.add_handler(handler)
+    for handler in create_id_handlers():
+        application.add_handler(handler)
 
 
 async def _post_shutdown(application) -> None:

src/python_italy_bot/services/spam_detector.py

@@ -25,7 +25,7 @@ def __init__(
     ) -> None:
         self._max_messages_per_minute = max_messages_per_minute
         self._duplicate_threshold_seconds = duplicate_threshold_seconds
-        self._message_history: dict[int, list[datetime]] = defaultdict(list)
+        self._message_history: dict[int, list[datetime]] = defaultdict[int, list[datetime]](list)
         self._last_message_text: dict[int, tuple[str, datetime]] = {}
 
     def _clean_old_entries(self, user_id: int) -> None: