273 lines
7.7 KiB
Python
273 lines
7.7 KiB
Python
"""
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bot.py - Discord bot client with session management and command routing
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Features:
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- Login flow with username/password
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- Session management with JWT tokens
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- AI-powered command parsing via registry
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- Background task loop for polling
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"""
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import discord
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from discord.ext import tasks
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import os
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import sys
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import json
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import base64
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import requests
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import bcrypt
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import pickle
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from bot.command_registry import get_handler, list_registered
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import ai.parser as ai_parser
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import bot.commands.routines # noqa: F401 - registers handler
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import bot.commands.medications # noqa: F401 - registers handler
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DISCORD_BOT_TOKEN = os.getenv("DISCORD_BOT_TOKEN")
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API_URL = os.getenv("API_URL", "http://app:5000")
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user_sessions = {}
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login_state = {}
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message_history = {}
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user_cache = {}
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CACHE_FILE = "/app/user_cache.pkl"
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intents = discord.Intents.default()
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intents.message_content = True
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client = discord.Client(intents=intents)
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def decodeJwtPayload(token):
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payload = token.split(".")[1]
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payload += "=" * (4 - len(payload) % 4)
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return json.loads(base64.urlsafe_b64decode(payload))
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def apiRequest(method, endpoint, token=None, data=None):
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url = f"{API_URL}{endpoint}"
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headers = {"Content-Type": "application/json"}
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if token:
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headers["Authorization"] = f"Bearer {token}"
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try:
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resp = getattr(requests, method)(url, headers=headers, json=data, timeout=10)
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try:
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return resp.json(), resp.status_code
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except ValueError:
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return {}, resp.status_code
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except requests.RequestException:
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return {"error": "API unavailable"}, 503
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def loadCache():
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try:
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if os.path.exists(CACHE_FILE):
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with open(CACHE_FILE, "rb") as f:
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global user_cache
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user_cache = pickle.load(f)
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print(f"Loaded cache for {len(user_cache)} users")
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except Exception as e:
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print(f"Error loading cache: {e}")
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def saveCache():
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try:
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with open(CACHE_FILE, "wb") as f:
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pickle.dump(user_cache, f)
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except Exception as e:
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print(f"Error saving cache: {e}")
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def hashPassword(password):
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return bcrypt.hashpw(password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")
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def verifyPassword(password, hashed):
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return bcrypt.checkpw(password.encode("utf-8"), hashed.encode("utf-8"))
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def getCachedUser(discord_id):
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return user_cache.get(discord_id)
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def setCachedUser(discord_id, user_data):
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user_cache[discord_id] = user_data
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saveCache()
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def negotiateToken(discord_id, username, password):
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cached = getCachedUser(discord_id)
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if (
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cached
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and cached.get("username") == username
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and verifyPassword(password, cached.get("hashed_password"))
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):
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result, status = apiRequest(
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"post", "/api/login", data={"username": username, "password": password}
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)
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if status == 200 and "token" in result:
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token = result["token"]
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payload = decodeJwtPayload(token)
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user_uuid = payload["sub"]
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setCachedUser(
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discord_id,
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{
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"hashed_password": cached["hashed_password"],
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"user_uuid": user_uuid,
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"username": username,
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},
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)
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return token, user_uuid
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return None, None
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result, status = apiRequest(
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"post", "/api/login", data={"username": username, "password": password}
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)
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if status == 200 and "token" in result:
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token = result["token"]
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payload = decodeJwtPayload(token)
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user_uuid = payload["sub"]
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setCachedUser(
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discord_id,
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{
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"hashed_password": hashPassword(password),
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"user_uuid": user_uuid,
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"username": username,
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},
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)
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return token, user_uuid
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return None, None
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async def handleAuthFailure(message):
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discord_id = message.author.id
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user_sessions.pop(discord_id, None)
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await message.channel.send(
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"Your session has expired. Send any message to log in again."
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)
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async def handleLoginStep(message):
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discord_id = message.author.id
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state = login_state[discord_id]
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if state["step"] == "username":
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state["username"] = message.content.strip()
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state["step"] = "password"
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await message.channel.send("Password?")
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elif state["step"] == "password":
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username = state["username"]
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password = message.content.strip()
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del login_state[discord_id]
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token, user_uuid = negotiateToken(discord_id, username, password)
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if token and user_uuid:
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user_sessions[discord_id] = {
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"token": token,
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"user_uuid": user_uuid,
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"username": username,
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}
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registered = ", ".join(list_registered()) or "none"
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await message.channel.send(
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f"Welcome back **{username}**!\n\n"
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f"Registered modules: {registered}\n\n"
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f"Send 'help' for available commands."
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)
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else:
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await message.channel.send(
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"Invalid credentials. Send any message to try again."
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)
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async def sendHelpMessage(message):
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registered = list_registered()
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help_msg = f"**Available Modules:**\n{chr(10).join(f'- {m}' for m in registered) if registered else '- No modules registered'}\n\nJust talk naturally and I'll help you out!"
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await message.channel.send(help_msg)
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async def routeCommand(message):
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discord_id = message.author.id
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session = user_sessions[discord_id]
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user_input = message.content.lower()
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if "help" in user_input or "what can i say" in user_input:
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await sendHelpMessage(message)
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return
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async with message.channel.typing():
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history = message_history.get(discord_id, [])
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parsed = ai_parser.parse(message.content, "command_parser", history=history)
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if discord_id not in message_history:
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message_history[discord_id] = []
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message_history[discord_id].append((message.content, parsed))
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message_history[discord_id] = message_history[discord_id][-5:]
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if "needs_clarification" in parsed:
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await message.channel.send(
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f"I'm not quite sure what you mean. {parsed['needs_clarification']}"
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)
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return
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if "error" in parsed:
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await message.channel.send(
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f"I had trouble understanding that: {parsed['error']}"
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)
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return
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interaction_type = parsed.get("interaction_type")
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handler = get_handler(interaction_type)
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if handler:
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await handler(message, session, parsed)
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else:
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registered = ", ".join(list_registered()) or "none"
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await message.channel.send(
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f"Unknown command type '{interaction_type}'. Registered modules: {registered}"
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)
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@client.event
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async def on_ready():
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print(f"Bot logged in as {client.user}")
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loadCache()
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backgroundLoop.start()
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@client.event
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async def on_message(message):
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if message.author == client.user:
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return
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if not isinstance(message.channel, discord.DMChannel):
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return
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discord_id = message.author.id
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if discord_id in login_state:
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await handleLoginStep(message)
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return
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if discord_id not in user_sessions:
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login_state[discord_id] = {"step": "username"}
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await message.channel.send("Welcome! Send your username to log in.")
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return
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await routeCommand(message)
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@tasks.loop(seconds=60)
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async def backgroundLoop():
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"""Override this in your domain module or extend as needed."""
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pass
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@backgroundLoop.before_loop
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async def beforeBackgroundLoop():
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await client.wait_until_ready()
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if __name__ == "__main__":
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client.run(DISCORD_BOT_TOKEN)
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