feat: title weight procedure

:

.gitea/workflows/main.yml

@@ -29,7 +29,16 @@ jobs:
         if: github.ref == 'refs/heads/dev'
         uses: dokku/github-action@master
         with:
-          branch: 'dev'
+          branch: 'main'
           force: true
           git_remote_url: 'ssh://dokku@v2.discours.io:22/core'
           ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
+
+      - name: Push to dokku for staging branch
+        if: github.ref == 'refs/heads/staging'
+        uses: dokku/github-action@master
+        with:
+          branch: 'dev'
+          git_remote_url: 'ssh://dokku@staging.discours.io:22/core'
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
+          git_push_flags: '--force'

.gitignore

@@ -128,6 +128,9 @@ dmypy.json
 .idea
 temp.*
 
+# Debug
+DEBUG.log
+
 discours.key
 discours.crt
 discours.pem
@@ -161,4 +164,5 @@ views.json
 *.key
 *.crt
 *cache.json
-.cursor
+.cursor
+.devcontainer/

main.py

@@ -17,7 +17,8 @@ from cache.revalidator import revalidation_manager
 from services.exception import ExceptionHandlerMiddleware
 from services.redis import redis
 from services.schema import create_all_tables, resolvers
-from services.search import search_service
+#from services.search import search_service
+from services.search import search_service, initialize_search_index
 from services.viewed import ViewedStorage
 from services.webhook import WebhookEndpoint, create_webhook_endpoint
 from settings import DEV_SERVER_PID_FILE_NAME, MODE
@@ -34,24 +35,67 @@ async def start():
                 f.write(str(os.getpid()))
     print(f"[main] process started in {MODE} mode")
 
+async def check_search_service():
+    """Check if search service is available and log result"""
+    info = await search_service.info()
+    if info.get("status") in ["error", "unavailable"]:
+        print(f"[WARNING] Search service unavailable: {info.get('message', 'unknown reason')}")
+    else:
+        print(f"[INFO] Search service is available: {info}")
 
+
+# indexing DB data
+# async def indexing():
+#     from services.db import fetch_all_shouts
+#     all_shouts = await fetch_all_shouts()
+#     await initialize_search_index(all_shouts)
 async def lifespan(_app):
     try:
+        print("[lifespan] Starting application initialization")
         create_all_tables()
         await asyncio.gather(
             redis.connect(),
             precache_data(),
             ViewedStorage.init(),
             create_webhook_endpoint(),
-            search_service.info(),
+            check_search_service(),
             start(),
             revalidation_manager.start(),
         )
+        print("[lifespan] Basic initialization complete")
+
+        # Add a delay before starting the intensive search indexing
+        print("[lifespan] Waiting for system stabilization before search indexing...")
+        await asyncio.sleep(10)  # 10-second delay to let the system stabilize
+
+        # Start search indexing as a background task with lower priority
+        asyncio.create_task(initialize_search_index_background())
+
         yield
     finally:
+        print("[lifespan] Shutting down application services")
         tasks = [redis.disconnect(), ViewedStorage.stop(), revalidation_manager.stop()]
         await asyncio.gather(*tasks, return_exceptions=True)
+        print("[lifespan] Shutdown complete")
 
+# Initialize search index in the background
+async def initialize_search_index_background():
+    """Run search indexing as a background task with low priority"""
+    try:
+        print("[search] Starting background search indexing process")
+        from services.db import fetch_all_shouts
+        
+        # Get total count first (optional)
+        all_shouts = await fetch_all_shouts()
+        total_count = len(all_shouts) if all_shouts else 0
+        print(f"[search] Fetched {total_count} shouts for background indexing")
+        
+        # Start the indexing process with the fetched shouts
+        print("[search] Beginning background search index initialization...")
+        await initialize_search_index(all_shouts)
+        print("[search] Background search index initialization complete")
+    except Exception as e:
+        print(f"[search] Error in background search indexing: {str(e)}")
 
 # Создаем экземпляр GraphQL
 graphql_app = GraphQL(schema, debug=True)

requirements.txt

@@ -13,6 +13,10 @@ starlette
 gql
 ariadne
 granian
+
+# NLP and search
+httpx
+
 orjson
 pydantic
 trafilatura

resolvers/reader.py

@@ -10,7 +10,7 @@ from orm.shout import Shout, ShoutAuthor, ShoutTopic
 from orm.topic import Topic
 from services.db import json_array_builder, json_builder, local_session
 from services.schema import query
-from services.search import search_text
+from services.search import search_text, get_search_count
 from services.viewed import ViewedStorage
 from utils.logger import root_logger as logger
 
@@ -187,12 +187,10 @@ def get_shouts_with_links(info, q, limit=20, offset=0):
     """
     shouts = []
     try:
-        # logger.info(f"Starting get_shouts_with_links with limit={limit}, offset={offset}")
         q = q.limit(limit).offset(offset)
 
         with local_session() as session:
             shouts_result = session.execute(q).all()
-            # logger.info(f"Got {len(shouts_result) if shouts_result else 0} shouts from query")
 
             if not shouts_result:
                 logger.warning("No shouts found in query result")
@@ -203,7 +201,6 @@ def get_shouts_with_links(info, q, limit=20, offset=0):
                     shout = None
                     if hasattr(row, "Shout"):
                         shout = row.Shout
-                        # logger.debug(f"Processing shout#{shout.id} at index {idx}")
                     if shout:
                         shout_id = int(f"{shout.id}")
                         shout_dict = shout.dict()
@@ -231,20 +228,16 @@ def get_shouts_with_links(info, q, limit=20, offset=0):
                         topics = None
                         if has_field(info, "topics") and hasattr(row, "topics"):
                             topics = orjson.loads(row.topics) if isinstance(row.topics, str) else row.topics
-                            # logger.debug(f"Shout#{shout_id} topics: {topics}")
                             shout_dict["topics"] = topics
 
                         if has_field(info, "main_topic"):
                             main_topic = None
                             if hasattr(row, "main_topic"):
-                                # logger.debug(f"Raw main_topic for shout#{shout_id}: {row.main_topic}")
                                 main_topic = (
                                     orjson.loads(row.main_topic) if isinstance(row.main_topic, str) else row.main_topic
                                 )
-                                # logger.debug(f"Parsed main_topic for shout#{shout_id}: {main_topic}")
 
                             if not main_topic and topics and len(topics) > 0:
-                                # logger.info(f"No main_topic found for shout#{shout_id}, using first topic from list")
                                 main_topic = {
                                     "id": topics[0]["id"],
                                     "title": topics[0]["title"],
@@ -252,10 +245,8 @@ def get_shouts_with_links(info, q, limit=20, offset=0):
                                     "is_main": True,
                                 }
                             elif not main_topic:
-                                logger.warning(f"No main_topic and no topics found for shout#{shout_id}")
                                 main_topic = {"id": 0, "title": "no topic", "slug": "notopic", "is_main": True}
                             shout_dict["main_topic"] = main_topic
-                            # logger.debug(f"Final main_topic for shout#{shout_id}: {main_topic}")
 
                         if has_field(info, "authors") and hasattr(row, "authors"):
                             shout_dict["authors"] = (
@@ -282,7 +273,6 @@ def get_shouts_with_links(info, q, limit=20, offset=0):
         logger.error(f"Fatal error in get_shouts_with_links: {e}", exc_info=True)
         raise
     finally:
-        logger.info(f"Returning {len(shouts)} shouts from get_shouts_with_links")
         return shouts
 
 
@@ -401,8 +391,17 @@ async def load_shouts_search(_, info, text, options):
     """
     limit = options.get("limit", 10)
     offset = options.get("offset", 0)
+    
     if isinstance(text, str) and len(text) > 2:
+        # Get search results with pagination
         results = await search_text(text, limit, offset)
+        
+        # If no results, return empty list
+        if not results:
+            logger.info(f"No search results found for '{text}'")
+            return []
+        
+        # Extract IDs and scores
         scores = {}
         hits_ids = []
         for sr in results:
@@ -412,22 +411,42 @@ async def load_shouts_search(_, info, text, options):
                 scores[shout_id] = sr.get("score")
                 hits_ids.append(shout_id)
 
-        q = (
-            query_with_stat(info)
-            if has_field(info, "stat")
-            else select(Shout).filter(and_(Shout.published_at.is_not(None), Shout.deleted_at.is_(None)))
-        )
+        # Query DB for only the IDs in the current page
+        q = query_with_stat(info)
         q = q.filter(Shout.id.in_(hits_ids))
-        q = apply_filters(q, options)
-        q = apply_sorting(q, options)
-        shouts = get_shouts_with_links(info, q, limit, offset)
+        q = apply_filters(q, options.get("filters", {}))
+
+        #
+        shouts = get_shouts_with_links(info, q, len(hits_ids), 0)
+        
+        # Add scores from search results
         for shout in shouts:
-            shout.score = scores[f"{shout.id}"]
-        shouts.sort(key=lambda x: x.score, reverse=True)
+            shout_id = str(shout['id'])
+            shout["score"] = scores.get(shout_id, 0)
+
+        # Re-sort by search score to maintain ranking
+        shouts.sort(key=lambda x: scores.get(str(x['id']), 0), reverse=True)
+        
         return shouts
     return []
 
 
+@query.field("get_search_results_count")
+async def get_search_results_count(_, info, text):
+    """
+    Returns the total count of search results for a search query.
+    
+    :param _: Root query object (unused)
+    :param info: GraphQL context information
+    :param text: Search query text
+    :return: Total count of results
+    """
+    if isinstance(text, str) and len(text) > 2:
+        count = await get_search_count(text)
+        return {"count": count}
+    return {"count": 0}
+
+
 @query.field("load_shouts_unrated")
 async def load_shouts_unrated(_, info, options):
     """

schema/query.graphql

@@ -33,6 +33,7 @@ type Query {
   get_shout(slug: String, shout_id: Int): Shout
   load_shouts_by(options: LoadShoutsOptions): [Shout]
   load_shouts_search(text: String!, options: LoadShoutsOptions): [SearchResult]
+  get_search_results_count(text: String!): CountResult!
   load_shouts_bookmarked(options: LoadShoutsOptions): [Shout]
 
   # rating

schema/type.graphql

@@ -207,6 +207,7 @@ type CommonResult {
 }
 
 type SearchResult {
+    id: Int!
     slug: String!
     title: String!
     cover: String
@@ -274,3 +275,7 @@ type MyRateComment {
   my_rate: ReactionKind
 }
 
+type CountResult {
+  count: Int!
+}
+

server.py

@@ -0,0 +1,34 @@
+import sys
+from pathlib import Path
+
+from granian.constants import Interfaces
+from granian.log import LogLevels
+from granian.server import Server
+
+from settings import PORT
+from utils.logger import root_logger as logger
+
+if __name__ == "__main__":
+    logger.info("started")
+    try:
+
+        granian_instance = Server(
+            "main:app",
+            address="0.0.0.0",
+            port=PORT,
+            interface=Interfaces.ASGI,
+            workers=1,
+            websockets=False,
+            log_level=LogLevels.debug,
+            backlog=2048,
+        )
+
+        if "dev" in sys.argv:
+            logger.info("dev mode, building ssl context")
+            granian_instance.build_ssl_context(cert=Path("localhost.pem"), key=Path("localhost-key.pem"), password=None)
+        granian_instance.serve()
+    except Exception as error:
+        logger.error(error, exc_info=True)
+        raise
+    finally:
+        logger.info("stopped")

services/db.py

@@ -259,3 +259,27 @@ def get_json_builder():
 
 # Используем их в коде
 json_builder, json_array_builder, json_cast = get_json_builder()
+
+async def fetch_all_shouts(session=None):
+    """Fetch all published shouts for search indexing"""
+    from orm.shout import Shout
+    
+    close_session = False
+    if session is None:
+        session = local_session()
+        close_session = True
+    
+    try:
+        # Fetch only published and non-deleted shouts
+        query = session.query(Shout).filter(
+            Shout.published_at.is_not(None),
+            Shout.deleted_at.is_(None)
+        )
+        shouts = query.all()
+        return shouts
+    except Exception as e:
+        logger.error(f"Error fetching shouts for search indexing: {e}")
+        return []
+    finally:
+        if close_session:
+            session.close()

services/search.py

@@ -2,231 +2,692 @@ import asyncio
 import json
 import logging
 import os
+import httpx
+import time
+from collections import defaultdict
+from datetime import datetime, timedelta
 
-import orjson
-from opensearchpy import OpenSearch
-
-from services.redis import redis
-from utils.encoders import CustomJSONEncoder
-
-# Set redis logging level to suppress DEBUG messages
+# Set up proper logging
 logger = logging.getLogger("search")
-logger.setLevel(logging.WARNING)
+logger.setLevel(logging.INFO)  # Change to INFO to see more details
 
-ELASTIC_HOST = os.environ.get("ELASTIC_HOST", "").replace("https://", "")
-ELASTIC_USER = os.environ.get("ELASTIC_USER", "")
-ELASTIC_PASSWORD = os.environ.get("ELASTIC_PASSWORD", "")
-ELASTIC_PORT = os.environ.get("ELASTIC_PORT", 9200)
-ELASTIC_URL = os.environ.get(
-    "ELASTIC_URL",
-    f"https://{ELASTIC_USER}:{ELASTIC_PASSWORD}@{ELASTIC_HOST}:{ELASTIC_PORT}",
-)
-REDIS_TTL = 86400  # 1 день в секундах
+# Configuration for search service
+SEARCH_ENABLED = bool(os.environ.get("SEARCH_ENABLED", "true").lower() in ["true", "1", "yes"])
+TXTAI_SERVICE_URL = os.environ.get("TXTAI_SERVICE_URL", "none")
+MAX_BATCH_SIZE = int(os.environ.get("SEARCH_MAX_BATCH_SIZE", "25"))
 
-index_settings = {
-    "settings": {
-        "index": {"number_of_shards": 1, "auto_expand_replicas": "0-all"},
-        "analysis": {
-            "analyzer": {
-                "ru": {
-                    "tokenizer": "standard",
-                    "filter": ["lowercase", "ru_stop", "ru_stemmer"],
-                }
-            },
-            "filter": {
-                "ru_stemmer": {"type": "stemmer", "language": "russian"},
-                "ru_stop": {"type": "stop", "stopwords": "_russian_"},
-            },
-        },
-    },
-    "mappings": {
-        "properties": {
-            "body": {"type": "text", "analyzer": "ru"},
-            "title": {"type": "text", "analyzer": "ru"},
-            "subtitle": {"type": "text", "analyzer": "ru"},
-            "lead": {"type": "text", "analyzer": "ru"},
-            "media": {"type": "text", "analyzer": "ru"},
-        }
-    },
-}
+# Search cache configuration
+SEARCH_CACHE_ENABLED = bool(os.environ.get("SEARCH_CACHE_ENABLED", "true").lower() in ["true", "1", "yes"])
+SEARCH_CACHE_TTL_SECONDS = int(os.environ.get("SEARCH_CACHE_TTL_SECONDS", "900"))  # Default: 15 minutes
+SEARCH_MIN_SCORE = float(os.environ.get("SEARCH_MIN_SCORE", "0.1"))
+SEARCH_PREFETCH_SIZE = int(os.environ.get("SEARCH_PREFETCH_SIZE", "200"))
+SEARCH_USE_REDIS = bool(os.environ.get("SEARCH_USE_REDIS", "true").lower() in ["true", "1", "yes"])
 
-expected_mapping = index_settings["mappings"]
+search_offset = 0
 
-# Создание цикла событий
-search_loop = asyncio.get_event_loop()
+# Import Redis client if Redis caching is enabled
+if SEARCH_USE_REDIS:
+    try:
+        from services.redis import redis
+        logger.info("Redis client imported for search caching")
+    except ImportError:
+        logger.warning("Redis client import failed, falling back to memory cache")
+        SEARCH_USE_REDIS = False
 
-# В начале файла добавим флаг
-SEARCH_ENABLED = bool(os.environ.get("ELASTIC_HOST", ""))
-
-
-def get_indices_stats():
-    indices_stats = search_service.client.cat.indices(format="json")
-    for index_info in indices_stats:
-        index_name = index_info["index"]
-        if not index_name.startswith("."):
-            index_health = index_info["health"]
-            index_status = index_info["status"]
-            pri_shards = index_info["pri"]
-            rep_shards = index_info["rep"]
-            docs_count = index_info["docs.count"]
-            docs_deleted = index_info["docs.deleted"]
-            store_size = index_info["store.size"]
-            pri_store_size = index_info["pri.store.size"]
-
-            logger.info(f"Index: {index_name}")
-            logger.info(f"Health: {index_health}")
-            logger.info(f"Status: {index_status}")
-            logger.info(f"Primary Shards: {pri_shards}")
-            logger.info(f"Replica Shards: {rep_shards}")
-            logger.info(f"Documents Count: {docs_count}")
-            logger.info(f"Deleted Documents: {docs_deleted}")
-            logger.info(f"Store Size: {store_size}")
-            logger.info(f"Primary Store Size: {pri_store_size}")
+class SearchCache:
+    """Cache for search results to enable efficient pagination"""
+    
+    def __init__(self, ttl_seconds=SEARCH_CACHE_TTL_SECONDS, max_items=100):
+        self.cache = {}  # Maps search query to list of results
+        self.last_accessed = {}  # Maps search query to last access timestamp
+        self.ttl = ttl_seconds
+        self.max_items = max_items
+        self._redis_prefix = "search_cache:"
+    
+    async def store(self, query, results):
+        """Store search results for a query"""
+        normalized_query = self._normalize_query(query)
+        
+        if SEARCH_USE_REDIS:
+            try:
+                serialized_results = json.dumps(results)
+                await redis.set(
+                    f"{self._redis_prefix}{normalized_query}", 
+                    serialized_results,
+                    ex=self.ttl
+                )
+                logger.info(f"Stored {len(results)} search results for query '{query}' in Redis")
+                return True
+            except Exception as e:
+                logger.error(f"Error storing search results in Redis: {e}")
+                # Fall back to memory cache if Redis fails
+        
+        # First cleanup if needed for memory cache
+        if len(self.cache) >= self.max_items:
+            self._cleanup()
+            
+        # Store results and update timestamp
+        self.cache[normalized_query] = results
+        self.last_accessed[normalized_query] = time.time()
+        logger.info(f"Cached {len(results)} search results for query '{query}' in memory")
+        return True
+    
+    async def get(self, query, limit=10, offset=0):
+        """Get paginated results for a query"""
+        normalized_query = self._normalize_query(query)
+        all_results = None
 
+        # Try to get from Redis first
+        if SEARCH_USE_REDIS:
+            try:
+                cached_data = await redis.get(f"{self._redis_prefix}{normalized_query}")
+                if cached_data:
+                    all_results = json.loads(cached_data)
+                    logger.info(f"Retrieved search results for '{query}' from Redis")
+            except Exception as e:
+                logger.error(f"Error retrieving search results from Redis: {e}")
+        
+        # Fall back to memory cache if not in Redis
+        if all_results is None and normalized_query in self.cache:
+            all_results = self.cache[normalized_query]
+            self.last_accessed[normalized_query] = time.time()
+            logger.info(f"Retrieved search results for '{query}' from memory cache")
+        
+        # If not found in any cache
+        if all_results is None:
+            logger.info(f"Cache miss for query '{query}'")
+            return None
+        
+        # Return paginated subset
+        end_idx = min(offset + limit, len(all_results))
+        if offset >= len(all_results):
+            logger.warning(f"Requested offset {offset} exceeds result count {len(all_results)}")
+            return []
+            
+        logger.info(f"Cache hit for '{query}': serving {offset}:{end_idx} of {len(all_results)} results")
+        return all_results[offset:end_idx]
+    
+    async def has_query(self, query):
+        """Check if query exists in cache"""
+        normalized_query = self._normalize_query(query)
+        
+        # Check Redis first
+        if SEARCH_USE_REDIS:
+            try:
+                exists = await redis.get(f"{self._redis_prefix}{normalized_query}")
+                if exists:
+                    return True
+            except Exception as e:
+                logger.error(f"Error checking Redis for query existence: {e}")
+        
+        # Fall back to memory cache
+        return normalized_query in self.cache
+    
+    async def get_total_count(self, query):
+        """Get total count of results for a query"""
+        normalized_query = self._normalize_query(query)
+        
+        # Check Redis first
+        if SEARCH_USE_REDIS:
+            try:
+                cached_data = await redis.get(f"{self._redis_prefix}{normalized_query}")
+                if cached_data:
+                    all_results = json.loads(cached_data)
+                    return len(all_results)
+            except Exception as e:
+                logger.error(f"Error getting result count from Redis: {e}")
+        
+        # Fall back to memory cache
+        if normalized_query in self.cache:
+            return len(self.cache[normalized_query])
+            
+        return 0
+    
+    def _normalize_query(self, query):
+        """Normalize query string for cache key"""
+        if not query:
+            return ""
+        # Simple normalization - lowercase and strip whitespace
+        return query.lower().strip()
+    
+    def _cleanup(self):
+        """Remove oldest entries if memory cache is full"""
+        now = time.time()
+        # First remove expired entries
+        expired_keys = [
+            key for key, last_access in self.last_accessed.items() 
+            if now - last_access > self.ttl
+        ]
+        
+        for key in expired_keys:
+            if key in self.cache:
+                del self.cache[key]
+            if key in self.last_accessed:
+                del self.last_accessed[key]
+        
+        logger.info(f"Cleaned up {len(expired_keys)} expired search cache entries")
+        
+        # If still above max size, remove oldest entries
+        if len(self.cache) >= self.max_items:
+            # Sort by last access time
+            sorted_items = sorted(self.last_accessed.items(), key=lambda x: x[1])
+            # Remove oldest 20%
+            remove_count = max(1, int(len(sorted_items) * 0.2))
+            for key, _ in sorted_items[:remove_count]:
+                if key in self.cache:
+                    del self.cache[key]
+                if key in self.last_accessed:
+                    del self.last_accessed[key]
+            logger.info(f"Removed {remove_count} oldest search cache entries")
 
 class SearchService:
-    def __init__(self, index_name="search_index"):
-        logger.info("Инициализируем поиск...")
-        self.index_name = index_name
-        self.client = None
-        self.lock = asyncio.Lock()
-
-        # Инициализация клиента OpenSearch только если поиск включен
-        if SEARCH_ENABLED:
-            try:
-                self.client = OpenSearch(
-                    hosts=[{"host": ELASTIC_HOST, "port": ELASTIC_PORT}],
-                    http_compress=True,
-                    http_auth=(ELASTIC_USER, ELASTIC_PASSWORD),
-                    use_ssl=True,
-                    verify_certs=False,
-                    ssl_assert_hostname=False,
-                    ssl_show_warn=False,
-                )
-                logger.info("Клиент OpenSearch.org подключен")
-                search_loop.create_task(self.check_index())
-            except Exception as exc:
-                logger.warning(f"Поиск отключен из-за ошибки подключения: {exc}")
-                self.client = None
-        else:
-            logger.info("Поиск отключен (ELASTIC_HOST не установлен)")
-
+    def __init__(self):
+        logger.info(f"Initializing search service with URL: {TXTAI_SERVICE_URL}")
+        self.available = SEARCH_ENABLED
+        # Use different timeout settings for indexing and search requests
+        self.client = httpx.AsyncClient(timeout=30.0, base_url=TXTAI_SERVICE_URL)
+        self.index_client = httpx.AsyncClient(timeout=120.0, base_url=TXTAI_SERVICE_URL)
+        # Initialize search cache
+        self.cache = SearchCache() if SEARCH_CACHE_ENABLED else None
+        
+        if not self.available:
+            logger.info("Search disabled (SEARCH_ENABLED = False)")
+        
+        if SEARCH_CACHE_ENABLED:
+            cache_location = "Redis" if SEARCH_USE_REDIS else "Memory"
+            logger.info(f"Search caching enabled using {cache_location} cache with TTL={SEARCH_CACHE_TTL_SECONDS}s")
+            logger.info(f"Minimum score filter: {SEARCH_MIN_SCORE}, prefetch size: {SEARCH_PREFETCH_SIZE}")
+            
     async def info(self):
-        if not SEARCH_ENABLED:
+        """Return information about search service"""
+        if not self.available:
             return {"status": "disabled"}
-
         try:
-            return get_indices_stats()
+            response = await self.client.get("/info")
+            response.raise_for_status()
+            result = response.json()
+            logger.info(f"Search service info: {result}")
+            return result
         except Exception as e:
             logger.error(f"Failed to get search info: {e}")
             return {"status": "error", "message": str(e)}
-
-    def delete_index(self):
-        if self.client:
-            logger.warning(f"[!!!] Удаляем индекс {self.index_name}")
-            self.client.indices.delete(index=self.index_name, ignore_unavailable=True)
-
-    def create_index(self):
-        if self.client:
-            logger.info(f"Создается индекс: {self.index_name}")
-            self.client.indices.create(index=self.index_name, body=index_settings)
-            logger.info(f"Индекс {self.index_name} создан")
-
-    async def check_index(self):
-        if self.client:
-            logger.info(f"Проверяем индекс {self.index_name}...")
-            if not self.client.indices.exists(index=self.index_name):
-                self.create_index()
-                self.client.indices.put_mapping(index=self.index_name, body=expected_mapping)
-            else:
-                logger.info(f"Найден существующий индекс {self.index_name}")
-                # Проверка и обновление структуры индекса, если необходимо
-                result = self.client.indices.get_mapping(index=self.index_name)
-                if isinstance(result, str):
-                    result = orjson.loads(result)
-                if isinstance(result, dict):
-                    mapping = result.get(self.index_name, {}).get("mappings")
-                    logger.info(f"Найдена структура индексации: {mapping['properties'].keys()}")
-                    expected_keys = expected_mapping["properties"].keys()
-                    if mapping and mapping["properties"].keys() != expected_keys:
-                        logger.info(f"Ожидаемая структура индексации: {expected_mapping}")
-                        logger.warning("[!!!] Требуется переиндексация всех данных")
-                        self.delete_index()
-                        self.client = None
-        else:
-            logger.error("клиент не инициализован, невозможно проверить индекс")
-
+    
+    def is_ready(self):
+        """Check if service is available"""
+        return self.available
+    
+    async def verify_docs(self, doc_ids):
+        """Verify which documents exist in the search index"""
+        if not self.available:
+            return {"status": "disabled"}
+            
+        try:
+            logger.info(f"Verifying {len(doc_ids)} documents in search index")
+            response = await self.client.post(
+                "/verify-docs",
+                json={"doc_ids": doc_ids},
+                timeout=60.0  # Longer timeout for potentially large ID lists
+            )
+            response.raise_for_status()
+            result = response.json()
+            
+            # Log summary of verification results
+            missing_count = len(result.get("missing", []))
+            logger.info(f"Document verification complete: {missing_count} missing out of {len(doc_ids)} total")
+            
+            return result
+        except Exception as e:
+            logger.error(f"Document verification error: {e}")
+            return {"status": "error", "message": str(e)}
+    
     def index(self, shout):
-        if not SEARCH_ENABLED:
+        """Index a single document"""
+        if not self.available:
             return
+        logger.info(f"Indexing post {shout.id}")
+        # Start in background to not block
+        asyncio.create_task(self.perform_index(shout))
 
-        if self.client:
-            logger.info(f"Индексируем пост {shout.id}")
-            index_body = {
-                "body": shout.body,
-                "title": shout.title,
-                "subtitle": shout.subtitle,
-                "lead": shout.lead,
-                "media": shout.media,
-            }
-            asyncio.create_task(self.perform_index(shout, index_body))
+    async def perform_index(self, shout):
+        """Actually perform the indexing operation"""
+        if not self.available:
+            return
+        
+        try:
+            # Repeat title 3 times for higher keyword relevance
+            title_repeat = ". ".join(filter(None, [shout.title] * 3))
 
-    async def perform_index(self, shout, index_body):
-        if self.client:
+            # Combine all text fields
+            text_parts = [
+                title_repeat,
+                shout.subtitle or "",
+                shout.lead or "",
+                shout.body or "",
+                shout.media or ""
+            ]
+            text = " ".join(filter(None, text_parts))
+            
+            if not text.strip():
+                logger.warning(f"No text content to index for shout {shout.id}")
+                return
+                
+            logger.info(f"Indexing document: ID={shout.id}, Text length={len(text)}")
+            
+            # Send to txtai service
+            response = await self.client.post(
+                "/index",
+                json={"id": str(shout.id), "text": text}
+            )
+            response.raise_for_status()
+            result = response.json()
+            logger.info(f"Post {shout.id} successfully indexed: {result}")
+        except Exception as e:
+            logger.error(f"Indexing error for shout {shout.id}: {e}")
+
+    async def bulk_index(self, shouts):
+        """Index multiple documents at once with adaptive batch sizing"""
+        if not self.available or not shouts:
+            logger.warning(f"Bulk indexing skipped: available={self.available}, shouts_count={len(shouts) if shouts else 0}")
+            return
+        
+        start_time = time.time()
+        logger.info(f"Starting bulk indexing of {len(shouts)} documents")
+
+        MAX_TEXT_LENGTH = 4000  # Maximum text length to send in a single request
+        max_batch_size = MAX_BATCH_SIZE
+        total_indexed = 0
+        total_skipped = 0
+        total_truncated = 0
+        total_retries = 0
+        
+        # Group documents by size to process smaller documents in larger batches
+        small_docs = []
+        medium_docs = []
+        large_docs = []
+        
+        # First pass: prepare all documents and categorize by size
+        for shout in shouts:
             try:
-                await asyncio.wait_for(
-                    self.client.index(index=self.index_name, id=str(shout.id), body=index_body), timeout=40.0
-                )
-            except asyncio.TimeoutError:
-                logger.error(f"Indexing timeout for shout {shout.id}")
+                text_fields = []
+
+                # Repeat title 3 times
+                title_repeat = ". ".join(filter(None, [getattr(shout, "title", None)] * 3))
+
+                text_fields = [title_repeat]
+                for field_name in ['subtitle', 'lead', 'body']:
+                    field_value = getattr(shout, field_name, None)
+                    if field_value and isinstance(field_value, str) and field_value.strip():
+                        text_fields.append(field_value.strip())
+                
+                # Media field processing remains the same
+                media = getattr(shout, 'media', None)
+                if media:
+                    if isinstance(media, str):
+                        try:
+                            media_json = json.loads(media)
+                            if isinstance(media_json, dict):
+                                if 'title' in media_json:
+                                    text_fields.append(media_json['title'])
+                                if 'body' in media_json:
+                                    text_fields.append(media_json['body'])
+                        except json.JSONDecodeError:
+                            text_fields.append(media)
+                    elif isinstance(media, dict):
+                        if 'title' in media:
+                            text_fields.append(media['title'])
+                        if 'body' in media:
+                            text_fields.append(media['body'])
+                
+                text = " ".join(text_fields)
+                
+                if not text.strip():
+                    total_skipped += 1
+                    continue
+
+                # Truncate text if it exceeds the maximum length
+                original_length = len(text)
+                if original_length > MAX_TEXT_LENGTH:
+                    text = text[:MAX_TEXT_LENGTH]
+                    total_truncated += 1
+                
+                document = {
+                    "id": str(shout.id),
+                    "text": text
+                }
+                
+                # Categorize by size
+                text_len = len(text)
+                if text_len > 5000:
+                    large_docs.append(document)
+                elif text_len > 2000:
+                    medium_docs.append(document)
+                else:
+                    small_docs.append(document)
+                
+                total_indexed += 1
+                
             except Exception as e:
-                logger.error(f"Indexing error for shout {shout.id}: {e}")
+                logger.error(f"Error processing shout {getattr(shout, 'id', 'unknown')} for indexing: {e}")
+                total_skipped += 1
+        
+        # Process each category with appropriate batch sizes
+        logger.info(f"Documents categorized: {len(small_docs)} small, {len(medium_docs)} medium, {len(large_docs)} large")
+        
+        # Process small documents (larger batches)
+        if small_docs:
+            batch_size = min(max_batch_size, 15)
+            await self._process_document_batches(small_docs, batch_size, "small")
+            
+        # Process medium documents (medium batches)
+        if medium_docs:
+            batch_size = min(max_batch_size, 10)
+            await self._process_document_batches(medium_docs, batch_size, "medium")
+            
+        # Process large documents (small batches)
+        if large_docs:
+            batch_size = min(max_batch_size, 3)
+            await self._process_document_batches(large_docs, batch_size, "large")
+        
+        elapsed = time.time() - start_time
+        logger.info(f"Bulk indexing completed in {elapsed:.2f}s: {total_indexed} indexed, {total_skipped} skipped, {total_truncated} truncated, {total_retries} retries")
+
+    async def _process_document_batches(self, documents, batch_size, size_category):
+            """Process document batches with retry logic"""
+            # Check for possible database corruption before starting
+            db_error_count = 0
+            
+            for i in range(0, len(documents), batch_size):
+                batch = documents[i:i+batch_size]
+                batch_id = f"{size_category}-{i//batch_size + 1}"
+                logger.info(f"Processing {size_category} batch {batch_id} of {len(batch)} documents")
+                
+                retry_count = 0
+                max_retries = 3
+                success = False
+                
+                # Process with retries
+                while not success and retry_count < max_retries:
+                    try:
+                        logger.info(f"Sending batch {batch_id} of {len(batch)} documents to search service (attempt {retry_count+1})")
+                        response = await self.index_client.post(
+                            "/bulk-index",
+                            json=batch,
+                            timeout=120.0  # Explicit longer timeout for large batches
+                        )
+                        
+                        # Handle 422 validation errors - these won't be fixed by retrying
+                        if response.status_code == 422:
+                            error_detail = response.json()
+                            truncated_error = self._truncate_error_detail(error_detail)
+                            logger.error(f"Validation error from search service for batch {batch_id}: {truncated_error}")
+                            break
+                        
+                        # Handle 500 server errors - these might be fixed by retrying with smaller batches
+                        elif response.status_code == 500:
+                            db_error_count += 1
+                            
+                            # If we've seen multiple 500s, log a critical error
+                            if db_error_count >= 3:
+                                logger.critical(f"Multiple server errors detected (500). The search service may need manual intervention. Stopping batch {batch_id} processing.")
+                                break
+                                
+                            # Try again with exponential backoff
+                            if retry_count < max_retries - 1:
+                                retry_count += 1
+                                wait_time = (2 ** retry_count) + (random.random() * 0.5)  # Exponential backoff with jitter
+                                await asyncio.sleep(wait_time)
+                                continue
+                            
+                            # Final retry, split the batch
+                            elif len(batch) > 1:
+                                mid = len(batch) // 2
+                                await self._process_single_batch(batch[:mid], f"{batch_id}-A")
+                                await self._process_single_batch(batch[mid:], f"{batch_id}-B")
+                                break
+                            else:
+                                # Can't split a single document
+                                break
+                        
+                        # Normal success case
+                        response.raise_for_status()
+                        success = True
+                        db_error_count = 0  # Reset error counter on success
+                        
+                    except Exception as e:
+                        error_str = str(e).lower()
+                        if "duplicate key" in error_str or "unique constraint" in error_str or "nonetype" in error_str:
+                            db_error_count += 1
+                            if db_error_count >= 2:
+                                logger.critical(f"Potential database corruption detected: {error_str}. The search service may need manual intervention. Stopping batch {batch_id} processing.")
+                                break
+                        
+                        if retry_count < max_retries - 1:
+                            retry_count += 1
+                            wait_time = (2 ** retry_count) + (random.random() * 0.5)
+                            await asyncio.sleep(wait_time)
+                        else:
+                            if len(batch) > 1:
+                                mid = len(batch) // 2
+                                await self._process_single_batch(batch[:mid], f"{batch_id}-A")
+                                await self._process_single_batch(batch[mid:], f"{batch_id}-B")
+                            break
+
+    async def _process_single_batch(self, documents, batch_id):
+        """Process a single batch with maximum reliability"""
+        max_retries = 3
+        retry_count = 0
+        
+        while retry_count < max_retries:
+            try:
+                if not documents:
+                    return
+                    
+                response = await self.index_client.post(
+                    "/bulk-index",
+                    json=documents,
+                    timeout=90.0
+                )
+                response.raise_for_status()
+                return  # Success, exit the retry loop
+                
+            except Exception as e:
+                error_str = str(e).lower()
+                retry_count += 1
+                
+                if "dictionary changed size" in error_str or "transaction error" in error_str:
+                    wait_time = (2 ** retry_count) + (random.random() * 0.5)
+                    await asyncio.sleep(wait_time)  # Wait for txtai to recover
+                    continue
+                
+                if retry_count >= max_retries and len(documents) > 1:
+                    for i, doc in enumerate(documents):
+                        try:
+                            resp = await self.index_client.post("/index", json=doc, timeout=30.0)
+                            resp.raise_for_status()
+                        except Exception as e2:
+                            pass
+                    return  # Exit after individual processing attempt
+
+    def _truncate_error_detail(self, error_detail):
+        """Truncate error details for logging"""
+        truncated_detail = error_detail.copy() if isinstance(error_detail, dict) else error_detail
+        
+        if isinstance(truncated_detail, dict) and 'detail' in truncated_detail and isinstance(truncated_detail['detail'], list):
+            for i, item in enumerate(truncated_detail['detail']):
+                if isinstance(item, dict) and 'input' in item:
+                    if isinstance(item['input'], dict) and any(k in item['input'] for k in ['documents', 'text']):
+                        if 'documents' in item['input'] and isinstance(item['input']['documents'], list):
+                            for j, doc in enumerate(item['input']['documents']):
+                                if 'text' in doc and isinstance(doc['text'], str) and len(doc['text']) > 100:
+                                    item['input']['documents'][j]['text'] = f"{doc['text'][:100]}... [truncated, total {len(doc['text'])} chars]"
+                        
+                        if 'text' in item['input'] and isinstance(item['input']['text'], str) and len(item['input']['text']) > 100:
+                            item['input']['text'] = f"{item['input']['text'][:100]}... [truncated, total {len(item['input']['text'])} chars]"
+        
+        return truncated_detail
 
     async def search(self, text, limit, offset):
-        if not SEARCH_ENABLED:
+        """Search documents"""
+        if not self.available:
             return []
+        
+        if not isinstance(text, str) or not text.strip():
+            return []
+            
+        logger.info(f"Searching for: '{text}' (limit={limit}, offset={offset})")
+        
+        # Check if we can serve from cache
+        if SEARCH_CACHE_ENABLED:
+            has_cache = await self.cache.has_query(text)
+            if has_cache:
+                cached_results = await self.cache.get(text, limit, offset)
+                if cached_results is not None:
+                    return cached_results
+        
+        # Not in cache or cache disabled, perform new search
+        try:
+            search_limit = limit
+            search_offset = offset
 
-        logger.info(f"Ищем: {text} {offset}+{limit}")
-        search_body = {
-            "query": {"multi_match": {"query": text, "fields": ["title", "lead", "subtitle", "body", "media"]}}
-        }
-
-        if self.client:
-            search_response = self.client.search(
-                index=self.index_name,
-                body=search_body,
-                size=limit,
-                from_=offset,
-                _source=False,
-                _source_excludes=["title", "body", "subtitle", "media", "lead", "_index"],
+            if SEARCH_CACHE_ENABLED:
+                search_limit = SEARCH_PREFETCH_SIZE
+                search_offset = 0
+            else:
+                search_limit = limit
+                search_offset = offset
+                
+            response = await self.client.post(
+                "/search",
+                json={"text": text, "limit": search_limit, "offset": search_offset}
             )
-            hits = search_response["hits"]["hits"]
-            results = [{"id": hit["_id"], "score": hit["_score"]} for hit in hits]
-
-            # если результаты не пустые
-            if results:
-                # Кэширование в Redis с TTL
-                redis_key = f"search:{text}:{offset}+{limit}"
-                await redis.execute(
-                    "SETEX",
-                    redis_key,
-                    REDIS_TTL,
-                    json.dumps(results, cls=CustomJSONEncoder),
-                )
-            return results
-        return []
-
+            response.raise_for_status()
+            
+            result = response.json()
+            
+            formatted_results = result.get("results", [])
+            
+            valid_results = []
+            for item in formatted_results:
+                doc_id = item.get("id")
+                if doc_id and doc_id.isdigit():
+                    valid_results.append(item)
+            
+            if len(valid_results) != len(formatted_results):
+                formatted_results = valid_results
+                
+            if SEARCH_MIN_SCORE > 0:
+                initial_count = len(formatted_results)
+                formatted_results = [r for r in formatted_results if r.get("score", 0) >= SEARCH_MIN_SCORE]
+            
+            if SEARCH_CACHE_ENABLED:
+                await self.cache.store(text, formatted_results)
+                end_idx = offset + limit
+                page_results = formatted_results[offset:end_idx]
+                return page_results
+                    
+            return formatted_results
+        except Exception as e:
+            logger.error(f"Search error for '{text}': {e}", exc_info=True)
+            return []
+    
+    async def check_index_status(self):
+        """Get detailed statistics about the search index health"""
+        if not self.available:
+            return {"status": "disabled"}
+            
+        try:
+            response = await self.client.get("/index-status")
+            response.raise_for_status()
+            result = response.json()
+            
+            if result.get("consistency", {}).get("status") != "ok":
+                null_count = result.get("consistency", {}).get("null_embeddings_count", 0)
+                if null_count > 0:
+                    logger.warning(f"Found {null_count} documents with NULL embeddings")
+                    
+            return result
+        except Exception as e:
+            logger.error(f"Failed to check index status: {e}")
+            return {"status": "error", "message": str(e)}
 
+# Create the search service singleton
 search_service = SearchService()
 
-
+# API-compatible function to perform a search
 async def search_text(text: str, limit: int = 50, offset: int = 0):
     payload = []
-    if search_service.client:
-        # Использование метода search_post из OpenSearchService
+    if search_service.available:
         payload = await search_service.search(text, limit, offset)
     return payload
 
+async def get_search_count(text: str):
+    """Get total count of results for a query without fetching all results"""
+    if search_service.available and SEARCH_CACHE_ENABLED:
+        if await search_service.cache.has_query(text):
+            return await search_service.cache.get_total_count(text)
+    results = await search_text(text, SEARCH_PREFETCH_SIZE, 0)
+    return len(results)
 
-# Проверить что URL корректный
-OPENSEARCH_URL = os.getenv("OPENSEARCH_URL", "rc1a-3n5pi3bhuj9gieel.mdb.yandexcloud.net")
+async def initialize_search_index(shouts_data):
+    """Initialize search index with existing data during application startup"""
+    if not SEARCH_ENABLED:
+        return
+        
+    if not shouts_data:
+        return
+        
+    info = await search_service.info()
+    if info.get("status") in ["error", "unavailable", "disabled"]:
+        return
+    
+    index_stats = info.get("index_stats", {})
+    indexed_doc_count = index_stats.get("document_count", 0)
+
+    index_status = await search_service.check_index_status()
+    if index_status.get("status") == "inconsistent":
+        problem_ids = index_status.get("consistency", {}).get("null_embeddings_sample", [])
+                
+        if problem_ids:
+            problem_docs = [shout for shout in shouts_data if str(shout.id) in problem_ids]
+            if problem_docs:
+                await search_service.bulk_index(problem_docs)
+    
+    db_ids = [str(shout.id) for shout in shouts_data]
+    
+    try:
+        numeric_ids = [int(sid) for sid in db_ids if sid.isdigit()]
+        if numeric_ids:
+            min_id = min(numeric_ids)
+            max_id = max(numeric_ids)
+            id_range = max_id - min_id + 1
+    except Exception as e:
+        pass
+    
+    if abs(indexed_doc_count - len(shouts_data)) > 10:
+        doc_ids = [str(shout.id) for shout in shouts_data]
+        
+        verification = await search_service.verify_docs(doc_ids)
+        
+        if verification.get("status") == "error":
+            return
+            
+        missing_ids = verification.get("missing", [])
+        if missing_ids:
+            missing_docs = [shout for shout in shouts_data if str(shout.id) in missing_ids]
+            await search_service.bulk_index(missing_docs)
+    else:
+        pass
+        
+    try:
+        test_query = "test"
+        test_results = await search_text(test_query, 5)
+        
+        if test_results:
+            categories = set()
+            for result in test_results:
+                result_id = result.get("id")
+                matching_shouts = [s for s in shouts_data if str(s.id) == result_id]
+                if matching_shouts and hasattr(matching_shouts[0], 'category'):
+                    categories.add(getattr(matching_shouts[0], 'category', 'unknown'))
+    except Exception as e:
+        pass