329 lines
12 KiB
Python
329 lines
12 KiB
Python
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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import os
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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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import replicate
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import database as db
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from server import start_server
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from agent import Agent
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MESSAGE_PAGE_SIZE = 32
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class ChatContext:
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def __init__(self, messages, prelude=None):
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self.messages=messages
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self.prelude=prelude
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class App:
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def __init__(self, data_directory, replicate_api_token=None):
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self.data_directory = data_directory
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self.sql_engine = db.create_sql_engine(self.data_directory)
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self.user_connections = {}
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self.streams = {}
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if replicate_api_token:
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self.replicate_client = replicate.Client(api_token=replicate_api_token)
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else:
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raise Exception("Horde only works with a replicate client. Please provide an API Token.")
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# `Agent` is the kind 'basic', will be class `BasicAgent` in the future
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self.agent_classes = [Agent]
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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 = db.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, members=[]):
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with self.sql_session() as session:
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chat = db.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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chat_id = chat.id
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for agent_id in members:
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self.add_agent_to_chat(chat_id, agent_id)
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return chat_id
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# Updates the agent's basic fields, and applies field updates in its data
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def update_agent(self, agent_id, name=None, description=None, picture=None, data=None):
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with self.sql_session() as session:
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agent = session.execute(
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select(db.Agent).where(db.Agent.id == agent_id)
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).scalars().first()
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if not agent:
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raise Exception(f"Agent not found with id {agent_id}")
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summary = []
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if name != None:
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agent.name = name
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summary.append('name')
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if description != None:
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agent.description = description
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summary.append('description')
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if picture != None:
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agent.picture = picture
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summary.append('picture')
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if data:
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# Assign a copy to trigger a value change
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agent.data = agent.data.copy()
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agent.data.update(data)
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summary.extend([f"data.{name}" for name in data.keys()])
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session.commit()
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print(f"Updated agent #{agent.id} fields: {summary}")
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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(db.Chat).where(db.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(db.Agent).where(db.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_agent_kinds(self):
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return [kind.identifier for kind in self.agent_classes]
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def delete_chat(self, chat_id):
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with self.sql_session() as session:
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session.execute(db.Membership.__table__.delete().where(db.Membership.chat_id == chat_id))
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session.execute(db.Chat.__table__.delete().where(db.Chat.id == chat_id))
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session.commit()
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print(f"Deleted chat #{chat_id} and its memberships.")
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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(db.Message).where(db.Message.chat_id == chat_id).order_by(db.Message.time.asc())
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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(db.User).where(db.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(db.User.id).where(db.User.email == email or db.User.username == username)
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).first()
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if result is None:
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user = db.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 = db.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 = db.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(db.Chat.user_id).where(db.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(db.Membership.agent_id).where(db.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 get_chat_context(self, chat_id):
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return ChatContext(self.get_chat_messages(chat_id))
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def get_agent_control(self, agent_id):
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with self.sql_session() as session:
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agent = session.execute(
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select(db.Agent).where(db.Agent.id == agent_id)
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).scalars().first()
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if not agent:
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raise Exception(f"Agent not found with id {agent_id}")
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control = Agent.create_from_data(app, agent_id, agent.kind, agent.data)
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return control
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def get_agent_config_fields(self, agent_id):
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with self.sql_session() as session:
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agent = session.execute(
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select(db.Agent).where(db.Agent.id == agent_id)
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).scalars().first()
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if not agent:
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raise Exception(f"Agent not found with id {agent_id}")
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agent_class = next((it for it in self.agent_classes if it.identifier == agent.kind), None)
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if not agent_class:
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raise Exception(f"Invalid agent kind: {agent.kind}")
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data = agent.data or {}
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fields = [{
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'name': field.name,
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'type': field.type,
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'value': data.get(field.name, field.default)
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} for field in agent_class.schema_fields]
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return fields
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return {}
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async def send_agent_prompt(self, agent_id, message):
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control = self.get_agent_control(agent_id)
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response = await control.prompt(message)
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return response
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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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'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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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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control = self.get_agent_control(agent_id)
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asyncio.create_task(control.received_message(message))
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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="basic", # Should be '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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members=[agent_id],
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)
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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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print("api token", os.getenv('REPLICATE_API_TOKEN'))
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app = App(
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data_directory=data_directory,
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replicate_api_token=os.getenv('REPLICATE_API_TOKEN'),
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)
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start_server(app) |