If a user is a member of a chat, but not a member of the corresponding community, suggest it

bot.py

@@ -205,6 +205,21 @@ class Bot(telebot.TeleBot):
             self.poll_user_for_community(user, community)
         self.save_community(community)
 
+    def run_suggestions(self):
+        for user in self.iter_users():
+            found_communities = False
+            try:
+                for community in self.iter_communities():
+                    if user.check_chat(community.chat_id, self):
+                        self.send_template(user.user_id, 'community_suggest', community=community)
+                        found_communities = True
+            except KeyboardInterrupt as e:
+                raise e
+            except Exception:
+                print(f'An exception occured in suggestions: {traceback.format_exc()}')
+            if found_communities:
+                self.save_user(user)
+
     def send_meeting_info_in_community(self, community: Community):
         for meeting in community.scheduled_meetings:
             person_1, person_2 = self.get_chat(meeting[0]), self.get_chat(meeting[1])
@@ -240,6 +255,7 @@ class Bot(telebot.TeleBot):
                 raise e
             except Exception:
                 print(f'An exception occurred while iterating through communities: {traceback.format_exc()}')
+            Thread(target=self.run_suggestions).start()
             time.sleep(60)
 
     def register_next_step_handler(self, message, callback, *args, **kwargs):

main.py

@@ -2,12 +2,13 @@ from bot import Bot
 from views import views
 from threading import Thread
 import traceback
+import os
 
 
 config = {
-    'mongo': __import__('os').getenv('DB'),
-    'name': 'ranteabot',
-    'token': __import__('os').getenv('TOKEN'),
+    'mongo': os.getenv('DB'),
+    'name': 'ranteabot' if not os.getenv('DEBUG') else 'flazhokbot',
+    'token': os.getenv('TOKEN'),
     'template_files': ['templates.txt'],
     'main_keyboard': {'en': [['ℹ️ About']], 'ru': [['ℹ️ О боте']]}
 }

templates.txt

@@ -81,6 +81,16 @@ You have already requested a meeting in the community <b>{{ community.name }}</b
 //| ru |//
 Вы уже запрашивали встречу в сообществе <b>{{ community.name }}</b> недавно. Вы сможете запросить еще одну встречу через несколько дней.
 
+||<| community_suggest |>||
+//| en |//
+You are a member of the chat {{ community.name }}. Do you want to add this community in the bot and participate in meetings?
+>>| Yes :-: community_add_{{ community.chat_id }} |<<
+>>| No :-: dismiss |<<
+//| ru |//
+Вы являетесь участником чата {{ community.name }}. Хотите добавить его как сообщество в бота и присоединиться к встречам?
+>>| Да :-: community_add_{{ community.chat_id }} |<<
+>>| Нет :-: dismiss |<<
+
 ||<| canceled |>||
 //| en |//
 Canceled

user.py

@@ -3,6 +3,7 @@ from dataclasses import dataclass, field, asdict
 import typing
 import time
 from community import Community
+from telebot.types import ChatMember
 
 if typing.TYPE_CHECKING:
     from bot import Bot
@@ -15,6 +16,20 @@ class User:
     locale: str = ''
     start_timestamp: int = field(default_factory=lambda: int(time.time()))
     last_action_timestamp: int = field(default_factory=lambda: int(time.time()))
+    # Store the chats which were checked
+    # (so that we send a message for communities
+    # where the user is a member of the chat but not a member of the RT community)
+    checked_chats: typing.List[int] = field(default_factory=list)
+
+    def check_chat(self, chat_id: int, bot: Bot) -> bool:
+        """
+        Check if the user should be notified of this chat
+        """
+        if chat_id in self.checked_chats:
+            return False
+        self.checked_chats.append(chat_id)
+        chat_member_info: ChatMember = bot.get_chat_member(chat_id, self.user_id)
+        return chat_member_info.is_member or chat_member_info.status in ['creator', 'administrator', 'admin', 'member']
 
     def dict(self) -> dict:
         data = asdict(self)
@@ -25,7 +40,7 @@ class User:
     def from_dict(cls, data: dict) -> User:
         data = getattr(data, '__dict__', data)
         data_ = {key: data[key] for key in data.keys() if
-                 key in ['user_id', 'chat_id', 'locale', 'start_timestamp', 'last_action_timestamp']}
+                 key in ['user_id', 'chat_id', 'locale', 'start_timestamp', 'last_action_timestamp', 'checked_chats']}
         self = cls(**data_)
         return self
 

views.py

@@ -1,4 +1,5 @@
 from datetime import date
+from telebot.types import CallbackQuery, Message
 
 from bot import Bot
 from community import Community
@@ -6,7 +7,7 @@ from community import Community
 
 def views(bot: Bot):
     @bot.handle_commands(['/start'])
-    def handle_start(msg, user, args):
+    def handle_start(msg: Message, user, args):
         if msg.chat.type in 'supergroup':
             bot.reply_with_template(msg, 'welcome', community=Community.by_id(msg.chat.id, bot))
             return
@@ -20,6 +21,7 @@ def views(bot: Bot):
                 bot.poll_user_for_community(user, community)
             else:
                 bot.reply_with_template(msg, 'err_not_a_member', community=community)
+            bot.save_community(community)
         bot.reply_with_template(msg, 'info', start=True)
 
     @bot.handle_commands(['/help', 'ℹ️ About', 'ℹ️ О боте'])
@@ -27,7 +29,7 @@ def views(bot: Bot):
         bot.reply_with_template(msg, 'info', start=False)
 
     @bot.handle_commands(['/request', '📝 Request a meeting', '📝 Запросить встречу'])
-    def request_meeting(msg, user, _args):
+    def request_meeting(msg: Message, user, _args):
         if msg.chat.type != 'private':
             bot.reply_with_template(msg, 'err_not_private')
             return
@@ -35,7 +37,7 @@ def views(bot: Bot):
         bot.reply_with_template(msg, 'request_meeting', comm_list=comm_ids_and_names)
 
     @bot.handle_commands(['/join'])
-    def join_community(msg, user, args):
+    def join_community(msg: Message, user, args):
         # check if it really is a community
         if msg.chat.type == 'private':
             bot.reply_with_template(msg, 'err_not_community')
@@ -45,15 +47,31 @@ def views(bot: Bot):
         bot.reply_with_template(msg, 'welcome', community=community, join=True)
 
     @bot.handle_callback('request_meeting')
-    def request_meeting_callback(msg, user, args):
+    def request_meeting_callback(query: CallbackQuery, user, args):
         community = Community.by_id(int(args), bot)
         if community.can_user_request_a_meeting(user.user_id):
             community.polled[user.user_id] = date.today()
             community.pool.append(user.user_id)
-            bot.reply_with_template(msg, 'request_meeting_success', community=community)
+            bot.reply_with_template(query, 'request_meeting_success', community=community)
         else:
-            bot.reply_with_template(msg, 'request_meeting_failure', community=community)
-        bot.answer_callback_query(msg.id)
+            bot.reply_with_template(query, 'request_meeting_failure', community=community)
+        bot.answer_callback_query(query.id)
+
+    @bot.handle_callback('dismiss')
+    def dismiss_callback(query: CallbackQuery, user, _args):
+        bot.answer_callback_query(query.id, {'en': 'Ok, fine', 'ru': 'ладно'}.get(user.locale, 'Ok'))
+        bot.delete_message(query.message.chat.id, query.message.message_id)
+
+    @bot.handle_callback('community_add')
+    def community_add_callback(query: CallbackQuery, user, args):
+        community = Community.by_id(int(args), bot)
+        if user.user_id in community.members:
+            bot.reply_with_template(query, 'community_added', community=community, already_member=True)
+        elif community.add_member(user.user_id, bot):
+            bot.reply_with_template(query, 'community_added', community=community, already_member=False)
+            bot.poll_user_for_community(user, community)
+        bot.answer_callback_query(query.id)
+        bot.save_community(community)
 
     @bot.handle_commands(['/send_all'])
     def send_spam(msg, user, _args):