Migrate to SQLite DB from JSON files (#20)

* Remove .json files as migrate to async sqlite.db
* Add a backup strategy saving the db once a day
* Add async to other functions e.g. crawler

.gitignore

@@ -10,3 +10,6 @@ htmlcov
 
 pytest.xml
 coverage.xml
+
+backups/
+*.db

cs2posts/bot/chats.py

@@ -24,87 +24,3 @@ class Chat:
     def from_json(cls, data: dict[str, str]) -> Chat:
         last_activity = datetime.fromisoformat(data.pop('last_activity'))
         return cls(**data, last_activity=last_activity)
-
-    def to_json(self) -> dict[str, str]:
-        return {
-            "chat_id": self.chat_id,
-            "chat_id_admin": self.chat_id_admin,
-            "strikes": self.strikes,
-            "is_running": self.is_running,
-            "is_banned": self.is_banned,
-            "is_removed_while_banned": self.is_removed_while_banned,
-            "is_news_interested": self.is_news_interested,
-            "is_update_interested": self.is_update_interested,
-            "is_external_news_interested": self.is_external_news_interested,
-            "last_activity": self.last_activity.isoformat()
-        }
-
-
-class Chats:
-
-    def __init__(self, chats: list[Chat] = None) -> None:
-        if chats is None:
-            chats = []
-        self.__chats: dict[int, Chat] = {}
-        for chat in chats:
-            self.__chats[chat.chat_id] = chat
-
-    @property
-    def chats(self) -> list[Chat]:
-        return list(self.__chats.values())
-
-    def get(self, chat_id: int) -> Chat | None:
-        return self.__chats.get(chat_id)
-
-    def add(self, chat: Chat) -> None:
-        self.__chats[chat.chat_id] = chat
-
-    def create(self, chat_id: int) -> Chat:
-        return Chat(chat_id=chat_id)
-
-    def remove(self, chat: Chat) -> None:
-        self.__chats.pop(chat.chat_id, None)
-
-    def update(self, chat: Chat) -> None:
-        self.__chats[chat.chat_id] = chat
-
-    def contains(self, chat_id: int) -> bool:
-        return chat_id in self.__chats
-
-    def create_and_add(self, chat_id: int) -> Chat:
-        chat = self.create(chat_id)
-        self.add(chat)
-        return chat
-
-    def migrate(self, chat: Chat, new_chat_id: int) -> Chat:
-        self.remove(chat)
-        chat.chat_id = new_chat_id
-        self.add(chat)
-        return chat
-
-    def get_running_chats(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_running]
-
-    def get_interested_in_news(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_news_interested]
-
-    def get_interested_in_updates(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_update_interested]
-
-    def get_running_and_interested_in_news(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_running and chat.is_news_interested]
-
-    def get_running_and_interested_in_updates(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_running and chat.is_update_interested]
-
-    def get_running_and_interested_in_external_news(self) -> list[Chat]:
-        return [chat for chat in self.__chats.values() if chat.is_running and chat.is_external_news_interested]
-
-    def __contains__(self, chat: Chat) -> bool:
-        return chat.chat_id in self.__chats
-
-    def __iter__(self):
-        return iter(self.__chats.values())
-
-    def __len__(self) -> int:
-        return len(self.__chats)