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import logging
from langchain.agents import create_agent
from langchain_core.tools import BaseTool
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_mcp_adapters.sessions import StreamableHttpConnection
from langgraph.graph.state import CompiledStateGraph
from agents.lazy_agent import LazyLoadingAgent
from agents.middlewares import ConfigurableModelMiddleware
from agents.prompts.competitive_programming import SYSTEM_PROMPT
from core import get_model, settings
logger = logging.getLogger(__name__)
ALLOWED_TOOLS = {
# LeetCode - User Stats & Profile
"leetcode_get_rating",
"leetcode_get_profile",
"leetcode_get_details",
"leetcode_get_badges",
"leetcode_get_solved",
"leetcode_get_contest_ranking",
"leetcode_get_contest_history",
"leetcode_get_submissions",
"leetcode_get_ac_submissions",
"leetcode_get_calendar",
"leetcode_get_skill_stats",
"leetcode_get_languages",
"leetcode_get_progress",
"leetcode_get_contest_ranking_info",
# Codeforces - User Stats & Content
"codeforces_get_rating",
"codeforces_get_contest_history",
"codeforces_get_user_status",
"codeforces_get_user_blogs",
"codeforces_get_solved_problems",
"codeforces_get_blog_entry",
"codeforces_get_blog_comments",
# AtCoder
"atcoder_get_rating",
"atcoder_get_history",
# CodeChef
"codechef_get_rating",
# GeeksforGeeks
"gfg_get_rating",
"gfg_get_submissions",
"gfg_get_posts",
}
class CompetitiveProgrammingAgent(LazyLoadingAgent):
"""CP Stat Agent with async initialization for contest and rating info."""
def __init__(self) -> None:
super().__init__()
self._mcp_tools: list[BaseTool] = []
self._mcp_client: MultiServerMCPClient | None = None
async def load(self) -> None:
"""Initialize the CP Stat agent by loading MCP tools from the Contest API."""
self._model = get_model(settings.DEFAULT_MODEL)
if not settings.CONTEST_API_URL:
logger.info("CONTEST_API_URL is not set, CP Stat agent will have no tools")
self._mcp_tools = []
self._graph = self._create_graph()
self._loaded = True
return
try:
connections = {
"cpstat": StreamableHttpConnection(
transport="streamable_http",
url=settings.CONTEST_API_URL,
)
}
self._mcp_client = MultiServerMCPClient(connections)
logger.info(f"CP Stat client initialized successfully with URL: {settings.CONTEST_API_URL}")
# all_tools = await self._mcp_client.get_tools()
# self._mcp_tools = filter_mcp_tools(all_tools, ALLOWED_TOOLS)
self._mcp_tools = await self._mcp_client.get_tools()
except Exception as e:
logger.error(f"Failed to initialize CP Stat agent: {e}")
self._mcp_tools = []
self._mcp_client = None
# Create and store the graph
self._graph = self._create_graph()
self._loaded = True
def _create_graph(self) -> CompiledStateGraph:
"""Create the CP Stat agent graph."""
return create_agent(
model=self._model,
tools=self._mcp_tools,
middleware=[
ConfigurableModelMiddleware(),
],
name="competitive-programming-agent",
system_prompt=SYSTEM_PROMPT,
debug=True,
)
# Create the agent instance
competitive_programming_agent = CompetitiveProgrammingAgent()
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