PaperParser/paper/client.py

from loguru import logger

from opentele.tl import TelegramClient
from opentele.api import API

from telethon.tl.functions.channels import InviteToChannelRequest, JoinChannelRequest
from telethon.tl.functions.messages import AddChatUserRequest

# Types
from telethon.hints import (Entity, EntityLike, MessageLike)
from telethon.types import Channel, Chat, User
from telethon.sessions.abstract import Session

from paper.errors import *
from telethon.errors.rpcerrorlist import (
    ChatAdminRequiredError,
    UserPrivacyRestrictedError,
    UserNotMutualContactError,
    ChannelPrivateError,
    ChatWriteForbiddenError,
    PeerFloodError,
    FloodWaitError,
    UsersTooMuchError,
    UserChannelsTooMuchError,
    UserIsBlockedError,
    YouBlockedUserError,
    UsernameInvalidError,
    UserKickedError
)

class PaperClient(TelegramClient):
    def __init__(self, session: str | Session) -> None:
        api = API.TelegramAndroid.Generate(session)
        super().__init__(f"sessions/{session}.session", api, flood_sleep_threshold=120)
    
    async def invite_self(self, group: Entity | EntityLike):
        group = await self.__cast_to_entity(group)

        if isinstance(group, Channel):
            await self(JoinChannelRequest(group))
            logger.info(f"Added self to a channel {group.title}")
    
    @logger.catch(reraise=True)
    async def invite_user(self, user: Entity | EntityLike, group: Entity | EntityLike):
        user, group = await self.__cast_to_entity(user), await self.__cast_to_entity(group)
        
        try:
            if isinstance(group, Channel) and isinstance(user, User):
                await self(InviteToChannelRequest(group, [user]))  # type: ignore
                logger.info(f"User {user} was added to channel {group.title}")

            elif isinstance(group, Chat) and isinstance(user, User):
                await self(AddChatUserRequest(group, user, 30))  # type: ignore
                logger.info(f"User {user} was added to chat {group.title}")

            else:
                logger.warning(f"Can't determine group type for {group}. Skipping...")

        except (UserPrivacyRestrictedError, UserNotMutualContactError) as e:
            raise UserPrivacyException(e)
        
        except (ChatWriteForbiddenError, ChannelPrivateError, ChatAdminRequiredError) as e:
            raise AdminPrivilegesExceptions(e)
        
        except (PeerFloodError, FloodWaitError) as e:
            raise FloodException(e)
        
        except (UserChannelsTooMuchError, UsersTooMuchError, UserIsBlockedError, YouBlockedUserError, UserKickedError, UsernameInvalidError) as e:
            raise IgnoreException(e)
    
    @logger.catch(reraise=True)
    async def send_message(self, entity: Entity | EntityLike, message: str, file: str | None):
        entity = await self.__cast_to_entity(entity)

        try:
            return await super().send_message(entity, message=message, file=file) #type: ignore

        except (UserPrivacyRestrictedError, UserNotMutualContactError) as e:
            raise UserPrivacyException(e)
        
        except (ChatWriteForbiddenError, ChannelPrivateError, ChatAdminRequiredError) as e:
            raise AdminPrivilegesExceptions(e)
        
        except (PeerFloodError, FloodWaitError) as e:
            raise FloodException(e)
        
        except (UserChannelsTooMuchError, UsersTooMuchError, UserIsBlockedError, YouBlockedUserError) as e:
            raise IgnoreException(e)
        

    @logger.catch(reraise=True)
    async def get_participants(self, group: Entity | EntityLike, *args, **kwargs):
        group = await self.__cast_to_entity(group)
        
        return await super().get_participants(group, *args, **kwargs)

    async def __cast_to_entity(self, entity: Entity | EntityLike) -> Entity:
        try:
            if not isinstance(entity, Entity):
                if hasattr(entity, "username"):
                    entity = await self.get_entity(entity.username)
                else:
                    entity = await self.get_entity(entity)

            return entity  # type: ignore
        except UsernameInvalidError as e:
            raise IgnoreException(e)