129 lines
5 KiB
Python
129 lines
5 KiB
Python
from datetime import timedelta
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from urllib.parse import urljoin
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from pydantic import ValidationError
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from app.chat.exceptions import UserDontHavePermissionException, UserCanNotReadThisChatException
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from app.chat.shemas import SAllowedChats, SChangeData, SPinnedChats, SChat
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from app.config import settings
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from app.services.redis_service import RedisService
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from app.services.user_service import UserService
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from app.utils.unit_of_work import UnitOfWork
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from app.users.schemas import SInvitationData
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from app.services.auth_service import AuthService
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class ChatService:
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@staticmethod
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async def find_chat(uow: UnitOfWork, chat_id: int, user_id: int) -> SChat:
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async with uow:
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chat = await uow.chat.find_one(chat_id=chat_id, user_id=user_id)
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return chat
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@staticmethod
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async def get_all_chats(uow: UnitOfWork, user_id: int) -> SAllowedChats:
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try:
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async with RedisService() as redis:
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allowed_chats = await redis.get_value(key=f"user_allowed_chats: {user_id}", model=SAllowedChats)
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return allowed_chats
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except ValidationError:
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async with uow:
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allowed_chats = await uow.user.get_user_allowed_chats(user_id=user_id)
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async with RedisService() as redis:
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await redis.set_key(
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key=f"user_allowed_chats: {user_id}",
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expire_time=timedelta(minutes=30),
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value=allowed_chats.model_dump_json()
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)
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return allowed_chats
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@staticmethod
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async def create_chat(uow: UnitOfWork, user_id: int, user_to_exclude_id: int, chat_name: str) -> int:
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if user_id == user_to_exclude_id:
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raise UserCanNotReadThisChatException
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user_chat_for = await UserService.find_user(uow=uow, id=user_to_exclude_id)
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async with uow:
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chat_id = await uow.chat.create_chat(
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user_id=user_to_exclude_id,
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chat_name=chat_name,
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created_by=user_id,
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avatar_image=user_chat_for.avatar_image
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)
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await uow.chat.add_user_to_chat(user_id, chat_id)
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await uow.chat.add_user_to_chat(settings.ADMIN_USER_ID, chat_id)
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async with RedisService(is_raise=True) as redis:
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await redis.delete_key(key=f"user_allowed_chats: {user_id}")
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await uow.commit()
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return chat_id
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@classmethod
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async def change_chat_data(cls, uow: UnitOfWork, user_id: int, user_data: SChangeData) -> None:
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chat = await cls.find_chat(uow=uow, chat_id=user_data.chat_id, user_id=user_id)
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if chat.created_by != user_id:
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raise UserDontHavePermissionException
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async with uow:
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await uow.chat.change_data(
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chat_id=user_data.chat_id, chat_name=user_data.chat_name, avatar_image=user_data.avatar_image
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)
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async with RedisService(is_raise=True) as redis:
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await redis.delete_key(key=f"user_allowed_chats: {user_id}")
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await uow.commit()
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@staticmethod
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def create_invitation_link(chat_id: int) -> str:
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invitation_data = SInvitationData.model_validate({"chat_id": chat_id})
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invitation_token = AuthService.encode_invitation_token(invitation_data)
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invitation_link = urljoin(settings.INVITATION_LINK_HOST, f"/submit#code={invitation_token}")
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return invitation_link
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@classmethod
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async def invite_to_chat(cls, uow: UnitOfWork, user_id: int, invitation_token: str) -> None:
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invitation_data = AuthService.decode_invitation_token(invitation_token)
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chat = await cls.find_chat(uow=uow, chat_id=invitation_data.chat_id, user_id=user_id)
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if user_id == chat.chat_for:
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raise UserCanNotReadThisChatException
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async with uow:
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await uow.chat.add_user_to_chat(chat_id=invitation_data.chat_id, user_id=user_id)
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async with RedisService(is_raise=True) as redis:
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await redis.delete_key(key=f"user_allowed_chats: {user_id}")
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await uow.commit()
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@classmethod
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async def delete_chat(cls, uow: UnitOfWork, user_id: int, chat_id: int) -> None:
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chat = await cls.find_chat(uow=uow, chat_id=chat_id, user_id=user_id)
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if not user_id == chat.created_by:
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raise UserDontHavePermissionException
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async with uow:
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await uow.chat.delete_chat(chat_id)
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async with RedisService(is_raise=True) as redis:
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await redis.delete_key(key=f"user_allowed_chats: {user_id}")
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await uow.commit()
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@classmethod
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async def delete_user_from_chat(cls, uow: UnitOfWork, user_id: int, chat_id: int, user_id_for_delete: int) -> None:
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chat = await cls.find_chat(uow=uow, chat_id=chat_id, user_id=user_id)
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if not user_id == chat.created_by:
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raise UserDontHavePermissionException
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async with uow:
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await uow.chat.delete_user_from_chat(chat_id=chat_id, user_id=user_id_for_delete)
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async with RedisService(is_raise=True) as redis:
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await redis.delete_key(key=f"user_allowed_chats: {user_id_for_delete}")
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await uow.commit()
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@staticmethod
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async def pin_chat(uow: UnitOfWork, user_id: int, chat_id: int) -> None:
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async with uow:
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await uow.chat.pin_chat(chat_id=chat_id, user_id=user_id)
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await uow.commit()
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@staticmethod
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async def unpin_chat(uow: UnitOfWork, user_id: int, chat_id: int) -> None:
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async with uow:
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await uow.chat.unpin_chat(chat_id=chat_id, user_id=user_id)
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await uow.commit()
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@staticmethod
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async def get_pinned_chats(uow: UnitOfWork, user_id: int) -> SPinnedChats:
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async with uow:
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pinned_chats = await uow.chat.get_pinned_chats(user_id=user_id)
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return pinned_chats
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