91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
from abc import ABCMeta
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class UserService(object):
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__metaclass__ = Singleton
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def __init__(self):
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self.users_by_id = {} # key: user id, value: User
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def add_user(self, user_id, name, pass_hash): # ...
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def remove_user(self, user_id): # ...
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def add_friend_request(self, from_user_id, to_user_id): # ...
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def approve_friend_request(self, from_user_id, to_user_id): # ...
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def reject_friend_request(self, from_user_id, to_user_id): # ...
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class User(object):
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def __init__(self, user_id, name, pass_hash):
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self.user_id = user_id
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self.name = name
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self.pass_hash = pass_hash
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self.friends_by_id = {} # key: friend id, value: User
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self.friend_ids_to_private_chats = {} # key: friend id, value: private chats
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self.group_chats_by_id = {} # key: chat id, value: GroupChat
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self.received_friend_requests_by_friend_id = {} # key: friend id, value: AddRequest
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self.sent_friend_requests_by_friend_id = {} # key: friend id, value: AddRequest
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def message_user(self, friend_id, message): # ...
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def message_group(self, group_id, message): # ...
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def send_friend_request(self, friend_id): # ...
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def receive_friend_request(self, friend_id): # ...
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def approve_friend_request(self, friend_id): # ...
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def reject_friend_request(self, friend_id): # ...
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class Chat(metaclass=ABCMeta):
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def __init__(self, chat_id):
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self.users = []
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self.chat_id = chat_id
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self.messages = []
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class PrivateChat(Chat):
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def __init__(self, first_user, second_user):
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super(PrivateChat, self).__init__()
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self.users.append(first_user)
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self.users.append(second_user)
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class GroupChat(Chat):
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def add_user(self, user): # ...
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def remove_user(self, user): # ...
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class Message(object):
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def __init__(self, message_id, message, timestamp):
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self.message_id = message_id
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self.message = message
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self.timestamp = timestamp
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class AddRequest(object):
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def __init__(self, from_user_id, to_user_id, request_status, timestamp):
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self.from_user_id = from_user_id
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self.to_user_id = to_user_id
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self.request_status = request_status
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self.timestamp = timestamp
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class RequestStatus(Enum):
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UNREAD = 0
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READ = 1
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ACCEPTED = 2
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REJECTED = 3
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class Singleton(type):
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_instances = {}
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def __call__(cls, *args, **kwargs):
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if cls not in cls._instances:
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cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
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return cls._instances[cls] |