[feat]: update weaviate interactions to async and add user profiling logic for user indexing and retrieval

backend/.env.example

@@ -8,6 +8,8 @@ SUPABASE_SERVICE_ROLE_KEY=
 DISCORD_BOT_TOKEN=
 # ENABLE_DISCORD_BOT=true
 
+GITHUB_TOKEN=
+
 # EMBEDDING_MODEL=BAAI/bge-small-en-v1.5
 # EMBEDDING_MAX_BATCH_SIZE=32
 # EMBEDDING_DEVICE=cpu

backend/app/api/v1/auth.py

@@ -2,8 +2,10 @@
 from fastapi.responses import HTMLResponse
 from app.db.supabase.supabase_client import get_supabase_client
 from app.db.supabase.users_service import find_user_by_session_and_verify, get_verification_session_info
+from app.db.weaviate.user_profiling import profile_user_from_github
 from typing import Optional
 import logging
+import asyncio
 
 logger = logging.getLogger(__name__)
 router = APIRouter()
@@ -67,7 +69,15 @@ async def auth_callback(request: Request, code: Optional[str] = Query(None), ses
             logger.error("User verification failed - no pending verification found")
             return _error_response("No pending verification found or verification has expired. Please try the !verify_github command again.")
 
-        logger.info(f"Successfully verified user: {verified_user.id}")
+        logger.info(f"Successfully verified user: {verified_user.id}!")
+
+        logger.info(f"Indexing user: {verified_user.id} into Weaviate...")
+        try:
+            asyncio.create_task(profile_user_from_github(str(verified_user.id), github_username))
+            logger.info(f"User profiling started in background for: {verified_user.id}")
+        except Exception as e:
+            logger.error(f"Error starting user profiling: {verified_user.id}: {str(e)}")
+
         return _success_response(github_username)
 
     except Exception as e:

backend/app/db/weaviate/user_profiling.py

@@ -0,0 +1,310 @@
+import logging
+import asyncio
+import aiohttp
+from typing import List, Optional, Dict
+from datetime import datetime
+from collections import Counter
+from app.model.weaviate.models import WeaviateUserProfile, WeaviateRepository, WeaviatePullRequest
+from app.db.weaviate.weaviate_operations import store_user_profile
+from app.core.config import settings
+
+logger = logging.getLogger(__name__)
+
+
+class GitHubUserProfiler:
+    """
+    Class to handle GitHub user profiling and Weaviate storage.
+    Uses organization's GitHub token to fetch public user data via GitHub REST API.
+    """
+
+    def __init__(self):
+        if not settings.github_token:
+            raise ValueError("GitHub token not configured in environment variables")
+
+        self.headers = {
+            "Authorization": f"token {settings.github_token}",
+            "Accept": "application/vnd.github.v3+json",
+            "User-Agent": "DevRel-AI-Bot/1.0"
+        }
+        self.base_url = "https://api.github.com"
+        self.session = None
+
+    async def __aenter__(self):
+        """Create async HTTP session"""
+        timeout = aiohttp.ClientTimeout(total=60, connect=10, sock_read=30)
+        connector = aiohttp.TCPConnector(
+            limit=50,  # Total connection pool size
+            limit_per_host=10,  # Per-host connection limit
+            ttl_dns_cache=300,  # DNS cache TTL
+            use_dns_cache=True,
+        )
+
+        self.session = aiohttp.ClientSession(
+            headers=self.headers,
+            timeout=timeout,
+            connector=connector
+        )
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        """Close async HTTP session"""
+        if self.session:
+            await self.session.close()
+
+    async def _make_request(self, url: str, params: Dict = None) -> Optional[Dict]:
+        """Make a GET request to GitHub API"""
+        try:
+            async with self.session.get(url, params=params) as response:
+                if response.status == 200:
+                    return await response.json()
+                elif response.status == 404:
+                    logger.warning(f"GitHub API 404: {url}")
+                    return None
+                elif response.status == 403:
+                    logger.error(f"GitHub API rate limit exceeded: {url}")
+                    return None
+                else:
+                    logger.error(f"GitHub API error {response.status}: {url}")
+                    return None
+        except asyncio.TimeoutError:
+            logger.error(f"Timeout accessing GitHub API: {url}")
+            return None
+        except Exception as e:
+            logger.error(f"Error making request to {url}: {str(e)}")
+            return None
+
+    async def get_user_data(self, github_username: str) -> Optional[Dict]:
+        """Fetch user data"""
+        url = f"{self.base_url}/users/{github_username}"
+        user_data = await self._make_request(url)
+
+        if user_data:
+            logger.info(f"Successfully fetched user data for {github_username}")
+        else:
+            logger.error(f"Failed to fetch user data for {github_username}")
+
+        return user_data
+
+    async def get_user_repositories(self, github_username: str, max_repos: int = 50) -> List[Dict]:
+        """Fetch user repositories"""
+        try:
+            params = {
+                "type": "owner",
+                "sort": "updated",
+                "direction": "desc",
+                "per_page": max_repos
+            }
+
+            url = f"{self.base_url}/users/{github_username}/repos"
+            repos = await self._make_request(url, params)
+
+            if repos and isinstance(repos, list):
+                logger.info(f"Successfully fetched {len(repos)} repositories for {github_username}")
+                return repos
+            else:
+                logger.info(f"No repositories found for {github_username}")
+                return []
+
+        except Exception as e:
+            logger.error(f"Error fetching repositories for {github_username}: {str(e)}")
+            return []
+
+    async def get_repository_languages(self, languages_url: str) -> List[str]:
+        """Fetch repository languages"""
+        try:
+            languages_data = await self._make_request(languages_url)
+            if languages_data and isinstance(languages_data, dict):
+                return list(languages_data.keys())
+            return []
+        except Exception as e:
+            logger.warning(f"Error fetching languages from {languages_url}: {str(e)}")
+            return []
+
+    async def get_user_pull_requests(self, github_username: str, max_prs: int = 100) -> List[WeaviatePullRequest]:
+        """Fetch pull requests"""
+        try:
+            params = {
+                "q": f"author:{github_username} is:pr",
+                "sort": "created",
+                "order": "desc",
+                "per_page": max_prs
+            }
+
+            url = f"{self.base_url}/search/issues"
+            search_result = await self._make_request(url, params)
+
+            if not search_result or "items" not in search_result:
+                logger.info(f"No pull requests found for {github_username}")
+                return []
+
+            items = search_result["items"]
+            pull_requests = []
+
+            for pr_data in items:
+                try:
+                    repo_name = "unknown"
+                    if pr_data.get("html_url"):
+                        url_parts = pr_data["html_url"].split('/')
+                        if len(url_parts) >= 5:
+                            repo_name = f"{url_parts[3]}/{url_parts[4]}"
+
+                    merged_at = None
+                    if pr_data.get("pull_request") and pr_data["pull_request"].get("merged_at"):
+                        merged_at = pr_data["pull_request"]["merged_at"]
+
+                    pr_obj = WeaviatePullRequest(
+                        title=pr_data["title"],
+                        body=pr_data.get("body", "")[:500] if pr_data.get("body") else "",
+                        state=pr_data["state"],
+                        repository=repo_name,
+                        created_at=pr_data.get("created_at"),
+                        closed_at=pr_data.get("closed_at"),
+                        merged_at=merged_at,
+                        labels=[label["name"] for label in pr_data.get("labels", [])],
+                        url=pr_data["html_url"]
+                    )
+                    pull_requests.append(pr_obj)
+
+                except Exception as e:
+                    logger.warning(f"Error processing pull request: {str(e)}")
+                    continue
+
+            logger.info(f"Successfully fetched {len(pull_requests)} pull requests for {github_username}")
+            return pull_requests
+
+        except Exception as e:
+            logger.error(f"Error fetching pull requests for {github_username}: {str(e)}")
+            return []
+
+    async def _process_repository(self, repo_data: Dict) -> Optional[WeaviateRepository]:
+        """Process a single repository"""
+        try:
+            languages = []
+            if repo_data.get("languages_url"):
+                languages = await self.get_repository_languages(repo_data["languages_url"])
+
+            return WeaviateRepository(
+                name=repo_data["name"],
+                description=repo_data.get("description"),
+                url=repo_data["html_url"],
+                languages=languages,
+                stars=repo_data.get("stargazers_count", 0),
+                forks=repo_data.get("forks_count", 0)
+            )
+        except Exception as e:
+            logger.warning(f"Error processing repository {repo_data.get('name', 'unknown')}: {str(e)}")
+            return None
+
+    def analyze_language_frequency(self, repositories: List[WeaviateRepository]) -> List[str]:
+        """
+        Analyze language frequency across repositories to identify top 5 languages.
+        """
+        language_counter = Counter()
+        for repo in repositories:
+            language_counter.update(repo.languages)
+
+        top_languages = language_counter.most_common(5)
+        logger.info(f"Top 5 languages by frequency: {top_languages}")
+        return [lang for lang, _ in top_languages]
+
+    async def build_user_profile(self, user_id: str, github_username: str) -> Optional[WeaviateUserProfile]:
+        """
+        Build a complete user profile for Weaviate indexing
+        """
+        logger.info(f"Building user profile for GitHub user: {github_username}")
+
+        # Run user data, repositories, and pull requests fetch concurrently
+        user_task = self.get_user_data(github_username)
+        repos_task = self.get_user_repositories(github_username)
+        prs_task = self.get_user_pull_requests(github_username)
+
+        try:
+            user_data, repos_data, pull_requests = await asyncio.gather(
+                user_task, repos_task, prs_task, return_exceptions=True
+            )
+        except Exception as e:
+            logger.error(f"Error in concurrent data fetching: {str(e)}")
+            return None
+
+        if isinstance(user_data, Exception) or not user_data:
+            logger.error(f"Could not fetch user data for {github_username}")
+            return None
+
+        if isinstance(repos_data, Exception):
+            logger.warning(f"Error fetching repositories: {repos_data}")
+            repos_data = []
+
+        if isinstance(pull_requests, Exception):
+            logger.warning(f"Error fetching pull requests: {pull_requests}")
+            pull_requests = []
+
+        logger.info(f"Found {len(repos_data)} repositories and {len(pull_requests)} pull requests for {github_username}")
+
+        repository_tasks = [self._process_repository(repo) for repo in repos_data]
+
+        repositories = []
+        if repository_tasks:
+            try:
+                repo_results = await asyncio.gather(*repository_tasks, return_exceptions=True)
+                repositories = [r for r in repo_results if r is not None and not isinstance(r, Exception)]
+            except Exception as e:
+                logger.warning(f"Error processing repositories: {str(e)}")
+
+        all_languages = set()
+        all_topics = set()
+        total_stars = 0
+        total_forks = 0
+
+        for repo_obj in repositories:
+            all_languages.update(repo_obj.languages)
+            total_stars += repo_obj.stars
+            total_forks += repo_obj.forks
+
+        for repo_data in repos_data:
+            topics = repo_data.get("topics", [])
+            if topics:
+                all_topics.update(topics)
+
+        top_languages = self.analyze_language_frequency(repositories)
+
+        profile = WeaviateUserProfile(
+            user_id=user_id,
+            github_username=github_username,
+            display_name=user_data.get("name"),
+            bio=user_data.get("bio"),
+            location=user_data.get("location"),
+            repositories=repositories,
+            pull_requests=pull_requests,
+            languages=top_languages,
+            topics=list(all_topics),
+            followers_count=user_data.get("followers", 0),
+            following_count=user_data.get("following", 0),
+            total_stars_received=total_stars,
+            total_forks=total_forks,
+            profile_text_for_embedding="",  # TODO: Invoke agent/llm to generate this
+            last_updated=datetime.now()
+        )
+
+        logger.info(
+            f"Successfully built profile for {github_username}: "
+            f"{len(repositories)} repos, {len(top_languages)} top languages, "
+            f"{len(pull_requests)} pull requests analyzed"
+        )
+        return profile
+
+
+async def profile_user_from_github(user_id: str, github_username: str) -> bool:
+    """Profile a user and store in Weaviate with proper resource management."""
+
+    async with GitHubUserProfiler() as profiler:
+        try:
+            profile = await profiler.build_user_profile(user_id, github_username)
+            if profile:
+                success = await store_user_profile(profile)
+                if success:
+                    logger.info(f"Successfully stored profile for user {github_username}")
+                return success
+            return False
+        except Exception as e:
+            logger.error(f"Failed to profile user {github_username}: {str(e)}")
+            return False

backend/app/db/weaviate/weaviate_client.py

@@ -1,8 +1,32 @@
 import weaviate
+from contextlib import asynccontextmanager
+from typing import AsyncGenerator
+import logging
 
-# Connect to local Weaviate instance
-client = weaviate.connect_to_local()
+logger = logging.getLogger(__name__)
+
+_client = None
 
 
 def get_client():
-    return client
+    """Get or create the global Weaviate client instance."""
+    global _client
+    if _client is None:
+        _client = weaviate.use_async_with_local()
+    return _client
+
+@asynccontextmanager
+async def get_weaviate_client() -> AsyncGenerator[weaviate.WeaviateClient, None]:
+    """Async context manager for Weaviate client."""
+    client = get_client()
+    try:
+        await client.connect()
+        yield client
+    except Exception as e:
+        logger.error(f"Weaviate client error: {str(e)}")
+        raise
+    finally:
+        try:
+            await client.close()
+        except Exception as e:
+            logger.warning(f"Error closing Weaviate client: {str(e)}")