214 lines
7.5 KiB
Python
214 lines
7.5 KiB
Python
from database import create_sql_engine, User, Agent, Chat, Message, Membership
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from server import start_server
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from sqlalchemy.orm import Session
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from sqlalchemy.sql.expression import select
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from quart import Quart, Response, request, send_from_directory, jsonify, websocket
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from datetime import datetime
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import asyncio
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import json
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import sys
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class App:
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def __init__(self, data_directory):
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self.data_directory = data_directory
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self.sql_engine = create_sql_engine(self.data_directory)
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self.user_connections = {}
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def sql_session(self):
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return Session(self.sql_engine)
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def add_user_connection(self, user_id, channel):
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if user_id not in self.user_connections:
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self.user_connections[user_id] = []
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if channel not in self.user_connections[user_id]:
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self.user_connections[user_id].append(channel)
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def remove_user_connection(self, user_id, channel):
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if user_id in self.user_connections:
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if channel in self.user_connections[user_id]:
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self.user_connections[user_id].remove(channel)
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if not self.user_connections[user_id]: # Check if the list is empty
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del self.user_connections[user_id]
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def create_agent(self, user_id, name, description, picture, kind, data):
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with self.sql_session() as session:
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agent = Agent()
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agent.user_id = user_id
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agent.name = name
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agent.description = description
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agent.picture = picture
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agent.kind = kind
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agent.data = data
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session.add(agent)
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session.commit()
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print(f"Created agent #{agent.id}: {agent.name}")
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return agent.id
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def create_chat(self, user_id, name, description, picture):
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with self.sql_session() as session:
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chat = Chat()
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chat.user_id = user_id
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chat.name = name
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chat.description = description
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chat.picture = picture
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session.add(chat)
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session.commit()
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print(f"Created chat #{chat.id}: {chat.name}")
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return chat.id
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def get_chats(self, user_id):
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with self.sql_session() as session:
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chats = session.execute(select(Chat).where(Chat.user_id == user_id)).scalars().all()
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return [{
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"id": chat.id,
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"name": chat.name,
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"description": chat.description,
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"picture": chat.picture
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} for chat in chats]
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def get_agents(self, user_id):
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with self.sql_session() as session:
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agents = session.execute(select(Agent).where(Agent.user_id == user_id)).scalars().all()
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return [{
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"id": agent.id,
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"name": agent.name,
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"description": agent.description,
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"picture": agent.picture
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} for agent in agents]
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def get_chat_messages(self, chat_id, earliest_index=0):
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with self.sql_session() as session:
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messages = session.execute(
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select(Message).where(Message.chat_id == chat_id).order_by(Message.id.desc())
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).scalars().fetchmany(MESSAGE_PAGE_SIZE)
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return [{
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"id": message.id,
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"time": message.time,
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"sender": message.sender,
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"kind": message.kind,
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"content": message.content
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} for message in messages]
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def verify_user_credentials(self, username, password):
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with self.sql_session() as session:
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user = session.execute(
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select(User).where(User.username == username)
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).scalars().first()
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if user and user.password == password:
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return user.id
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return None
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def create_new_user(self, username, email, password):
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with self.sql_session() as session:
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result = session.execute(
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select(User.id).where(User.email == email or User.username == username)
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).first()
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if result is None:
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user = User()
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user.email = email
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user.username = username
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user.password = password
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session.add(user)
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session.commit()
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user_id = user.id
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print(f"Created user #{user_id}: {username} ({email})")
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else:
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print(f"Signup error: '{email}' or '{username}' are already used")
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return user_id
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def add_agent_to_chat(self, chat_id, agent_id):
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with self.sql_session() as session:
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membership = Membership()
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membership.chat_id = chat_id
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membership.agent_id = agent_id
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session.add(membership)
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session.commit()
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print(f"Added agent #{agent_id} to chat #{chat_id}")
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# If an integer is passed in sender, it is interpreted as an agent id
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def send_chat_message(self, chat_id, content, sender='user'):
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with self.sql_session() as session:
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message = Message()
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message.chat_id = chat_id
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message.time = int(datetime.now().timestamp())
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message.sender = sender
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message.kind = 'text' # default kind
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message.content = content
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session.add(message)
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session.commit()
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# Notify chat owner
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if sender != 'user':
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chat_owner = session.execute(select(Chat.user_id).where(Chat.id == chat_id)).scalar()
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self.notify_message_to_user(chat_owner, message)
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# Notify participant agents
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agent_ids = session.execute(select(Membership.agent_id).where(Membership.chat_id == chat_id)).scalars().all()
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for agent_id in agent_ids:
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if agent_id != sender:
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self.notify_message_to_agent(agent_id, message)
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return {
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'id': message.id,
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'chatId': message.chat_id,
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'time': message.time,
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'sender': message.sender,
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'kind': message.kind,
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'content': message.content,
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}
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def notify_message_to_user(self, user_id, message):
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if user_id in self.user_connections:
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user_message = {
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'action': 'chat-message',
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'id': message.id,
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'time': message.time,
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'sender': message.sender,
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'kind': message.kind,
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'content': message.content
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}
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for channel in self.user_connections[user_id]:
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asyncio.create_task(channel.put(user_message))
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def notify_message_to_agent(self, agent_id, message):
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pass # TODO
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def generate_default_user_data(self, user_id):
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agent_id = self.create_agent(
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user_id=user_id,
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name="Intro",
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description="Introduces you to the application.",
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picture=None,
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kind="intro",
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data={}
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)
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# Create a chat with that agent in it
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chat_id = self.create_chat(
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user_id=user_id,
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name="Initial Chat",
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description=None,
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picture=None
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)
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# Add the agent to the chat
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self.add_agent_to_chat(chat_id, agent_id)
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if __name__ == "__main__":
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if len(sys.argv) > 1:
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data_directory = sys.argv[1]
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else:
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print("No directory specified. Using current directory as default.")
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data_directory = "."
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app = App(data_directory)
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start_server(app) |