feat: introduce post resource with full CRUD operations and generation linking.

.gitignore

@@ -23,3 +23,4 @@ services/*.pyc
 utils/__pycache__/
 utils/*.pyc
 .vscode/launch.json
+repos/__pycache__/assets_repo.cpython-313.pyc

adapters/google_adapter.py

@@ -23,10 +23,10 @@ class GoogleAdapter:
         self.TEXT_MODEL = "gemini-3-pro-preview"
         self.IMAGE_MODEL = "gemini-3-pro-image-preview"
 
-    def _prepare_contents(self, prompt: str, images_list: List[bytes] = None) -> tuple:
+    def _prepare_contents(self, prompt: str, images_list: List[bytes] | None = None) -> tuple:
         """Вспомогательный метод для подготовки контента (текст + картинки).
         Returns (contents, opened_images) — caller MUST close opened_images after use."""
-        contents = [prompt]
+        contents : list [Any]= [prompt]
         opened_images = []
         if images_list:
             logger.info(f"Preparing content with {len(images_list)} images")
@@ -41,7 +41,7 @@ class GoogleAdapter:
             logger.info("Preparing content with no images")
         return contents, opened_images
 
-    def generate_text(self, prompt: str, images_list: List[bytes] = None) -> str:
+    def generate_text(self, prompt: str, images_list: List[bytes] | None = None) -> str:
         """
         Генерация текста (Чат или Vision).
         Возвращает строку с ответом.
@@ -74,7 +74,7 @@ class GoogleAdapter:
             for img in opened_images:
                 img.close()
 
-    def generate_image(self, prompt: str, aspect_ratio: AspectRatios, quality: Quality, images_list: List[bytes] = None, ) -> Tuple[List[io.BytesIO], Dict[str, Any]]:
+    def generate_image(self, prompt: str, aspect_ratio: AspectRatios, quality: Quality, images_list: List[bytes] | None = None, ) -> Tuple[List[io.BytesIO], Dict[str, Any]]:
         """
         Генерация изображений (Text-to-Image или Image-to-Image).
         Возвращает список байтовых потоков (готовых к отправке).
@@ -130,7 +130,9 @@ class GoogleAdapter:
                         try:
                             # 1. Берем сырые байты
                             raw_data = part.inline_data.data
-                            byte_arr = io.BytesIO(raw_data)
+                            if raw_data is None:
+                                raise GoogleGenerationException("Generation returned no data")
+                            byte_arr : io.BytesIO = io.BytesIO(raw_data)
 
                             # 2. Нейминг (формально, для TG)
                             timestamp = datetime.now().timestamp()

adapters/s3_adapter.py

@@ -18,7 +18,7 @@ class S3Adapter:
 
     @asynccontextmanager
     async def _get_client(self):
-        async with self.session.client(
+        async with self.session.client(  # type: ignore[reportGeneralTypeIssues]
             "s3",
             endpoint_url=self.endpoint_url,
             aws_access_key_id=self.aws_access_key_id,

aiws.py

@@ -44,6 +44,7 @@ from api.endpoints.admin import router as api_admin_router
 from api.endpoints.album_router import router as api_album_router
 from api.endpoints.project_router import router as project_api_router
 from api.endpoints.idea_router import router as idea_api_router
+from api.endpoints.post_router import router as post_api_router
 
 load_dotenv()
 logger = logging.getLogger(__name__)
@@ -64,6 +65,8 @@ def setup_logging():
 
 
 # --- ИНИЦИАЛИЗАЦИЯ ЗАВИСИМОСТЕЙ ---
+if BOT_TOKEN is None:
+    raise ValueError("BOT_TOKEN is not set")
 bot = Bot(token=BOT_TOKEN, default=DefaultBotProperties(parse_mode=ParseMode.HTML))
 
 # Клиент БД создаем глобально, чтобы он был доступен и боту (Storage), и API
@@ -83,8 +86,12 @@ s3_adapter = S3Adapter(
 )
 
 dao = DAO(mongo_client, s3_adapter)  # Главный DAO для бота
+if GEMINI_API_KEY is None:
+    raise ValueError("GEMINI_API_KEY is not set")
 gemini = GoogleAdapter(api_key=GEMINI_API_KEY)
-generation_service = GenerationService(dao, gemini, bot)
+if bot is None:
+    raise ValueError("bot is not set")
+generation_service = GenerationService(dao=dao, gemini=gemini, s3_adapter=s3_adapter, bot=bot)
 album_service = AlbumService(dao)
 
 # Dispatcher
@@ -126,11 +133,12 @@ async def start_scheduler(service: GenerationService):
         try:
             logger.info("Running scheduler for stacked generation killing")
             await service.cleanup_stale_generations()
+            await service.cleanup_old_data(days=2)
         except asyncio.CancelledError:
              break
         except Exception as e:
             logger.error(f"Scheduler error: {e}")
-        await asyncio.sleep(60) # Check every 10 minutes
+        await asyncio.sleep(60) # Check every 60 seconds
 
 # --- LIFESPAN (Запуск FastAPI + Bot) ---
 @asynccontextmanager
@@ -212,6 +220,7 @@ app.include_router(api_gen_router)
 app.include_router(api_album_router)
 app.include_router(project_api_router)
 app.include_router(idea_api_router)
+app.include_router(post_api_router)
 
 # Prometheus Metrics (Instrument after all routers are added)
 Instrumentator(

api/dependency.py

@@ -5,6 +5,7 @@ from motor.motor_asyncio import AsyncIOMotorClient
 from adapters.google_adapter import GoogleAdapter
 from api.service.generation_service import GenerationService
 from repos.dao import DAO
+from api.service.album_service import AlbumService
 
 
 # ... ваши импорты ...
@@ -54,3 +55,11 @@ from fastapi import Header
 
 async def get_project_id(x_project_id: Optional[str] = Header(None, alias="X-Project-ID")) -> Optional[str]:
     return x_project_id
+
+async def get_album_service(dao: DAO = Depends(get_dao)) -> AlbumService:
+    return AlbumService(dao)
+
+from api.service.post_service import PostService
+
+def get_post_service(dao: DAO = Depends(get_dao)) -> PostService:
+    return PostService(dao)

api/endpoints/admin.py

@@ -23,7 +23,7 @@ async def get_current_user(token: Annotated[str, Depends(oauth2_scheme)], repo:
     )
     try:
         payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
-        username: str = payload.get("sub")
+        username: str | None = payload.get("sub")
         if username is None:
             raise credentials_exception
     except JWTError:

api/endpoints/album_router.py

@@ -1,10 +1,13 @@
 from typing import List, Optional
-from fastapi import APIRouter, Depends, HTTPException, status, Request
+from fastapi import APIRouter, HTTPException, status, Request
 from pydantic import BaseModel
 
 from api.models.GenerationRequest import GenerationResponse
 from models.Album import Album
 from repos.dao import DAO
+from api.dependency import get_album_service
+from api.service.album_service import AlbumService
+
 
 router = APIRouter(prefix="/api/albums", tags=["Albums"])
 

api/endpoints/post_router.py

@@ -0,0 +1,99 @@
+from typing import List, Optional
+from datetime import datetime
+from fastapi import APIRouter, Depends, HTTPException
+
+from api.dependency import get_post_service, get_project_id
+from api.endpoints.auth import get_current_user
+from api.service.post_service import PostService
+from api.models.PostRequest import PostCreateRequest, PostUpdateRequest, AddGenerationsRequest
+from models.Post import Post
+
+router = APIRouter(prefix="/api/posts", tags=["posts"])
+
+
+@router.post("", response_model=Post)
+async def create_post(
+    request: PostCreateRequest,
+    project_id: Optional[str] = Depends(get_project_id),
+    current_user: dict = Depends(get_current_user),
+    post_service: PostService = Depends(get_post_service),
+):
+    pid = project_id or request.project_id
+    return await post_service.create_post(
+        date=request.date,
+        topic=request.topic,
+        generation_ids=request.generation_ids,
+        project_id=pid,
+        user_id=str(current_user["_id"]),
+    )
+
+
+@router.get("", response_model=List[Post])
+async def get_posts(
+    project_id: Optional[str] = Depends(get_project_id),
+    limit: int = 200,
+    offset: int = 0,
+    date_from: Optional[datetime] = None,
+    date_to: Optional[datetime] = None,
+    current_user: dict = Depends(get_current_user),
+    post_service: PostService = Depends(get_post_service),
+):
+    return await post_service.get_posts(project_id, str(current_user["_id"]), limit, offset, date_from, date_to)
+
+
+@router.get("/{post_id}", response_model=Post)
+async def get_post(
+    post_id: str,
+    post_service: PostService = Depends(get_post_service),
+):
+    post = await post_service.get_post(post_id)
+    if not post:
+        raise HTTPException(status_code=404, detail="Post not found")
+    return post
+
+
+@router.put("/{post_id}", response_model=Post)
+async def update_post(
+    post_id: str,
+    request: PostUpdateRequest,
+    post_service: PostService = Depends(get_post_service),
+):
+    post = await post_service.update_post(post_id, date=request.date, topic=request.topic)
+    if not post:
+        raise HTTPException(status_code=404, detail="Post not found")
+    return post
+
+
+@router.delete("/{post_id}")
+async def delete_post(
+    post_id: str,
+    post_service: PostService = Depends(get_post_service),
+):
+    success = await post_service.delete_post(post_id)
+    if not success:
+        raise HTTPException(status_code=404, detail="Post not found or could not be deleted")
+    return {"status": "success"}
+
+
+@router.post("/{post_id}/generations")
+async def add_generations(
+    post_id: str,
+    request: AddGenerationsRequest,
+    post_service: PostService = Depends(get_post_service),
+):
+    success = await post_service.add_generations(post_id, request.generation_ids)
+    if not success:
+        raise HTTPException(status_code=404, detail="Post not found")
+    return {"status": "success"}
+
+
+@router.delete("/{post_id}/generations/{generation_id}")
+async def remove_generation(
+    post_id: str,
+    generation_id: str,
+    post_service: PostService = Depends(get_post_service),
+):
+    success = await post_service.remove_generation(post_id, generation_id)
+    if not success:
+        raise HTTPException(status_code=404, detail="Post not found or generation not linked")
+    return {"status": "success"}

api/models/PostRequest.py

@@ -0,0 +1,19 @@
+from datetime import datetime
+from typing import Optional, List
+from pydantic import BaseModel
+
+
+class PostCreateRequest(BaseModel):
+    date: datetime
+    topic: str
+    generation_ids: List[str] = []
+    project_id: Optional[str] = None
+
+
+class PostUpdateRequest(BaseModel):
+    date: Optional[datetime] = None
+    topic: Optional[str] = None
+
+
+class AddGenerationsRequest(BaseModel):
+    generation_ids: List[str]

api/service/generation_service.py

@@ -77,7 +77,7 @@ class GenerationService:
         self.bot = bot
     
 
-    async def ask_prompt_assistant(self, prompt: str, assets: List[str] = None) -> str:
+    async def ask_prompt_assistant(self, prompt: str, assets: list[str] | None = None) -> str:
         future_prompt = """You are an prompt-assistant. You improving user-entered prompts for image generation. User may upload reference image too.
          I will provide sources prompt entered by user. Understand user needs and generate best variation of prompt.
           ANSWER ONLY PROMPT STRING!!! USER_ENTERED_PROMPT: """
@@ -157,6 +157,7 @@ class GenerationService:
                     # если генерация уже пошла и упала — пометим FAILED
                     try:
                         db_gen = await self.dao.generations.get_generation(gen.id)
+                        if db_gen is not None:
                             db_gen.status = GenerationStatus.FAILED
                             await self.dao.generations.update_generation(db_gen)
                     except Exception:
@@ -172,6 +173,7 @@ class GenerationService:
             if gen_id is not None:
                 try:
                     gen = await self.dao.generations.get_generation(gen_id)
+                    if gen is not None:
                         gen.status = GenerationStatus.FAILED
                         await self.dao.generations.update_generation(gen)
                 except Exception:
@@ -201,8 +203,9 @@ class GenerationService:
             if char_info is None:
                 raise Exception(f"Character ID {generation.linked_character_id} not found")
             if generation.use_profile_image:
+                if char_info.avatar_asset_id is not None:
                     avatar_asset = await self.dao.assets.get_asset(char_info.avatar_asset_id)
-                if avatar_asset:
+                    if avatar_asset and avatar_asset.data:
                         media_group_bytes.append(avatar_asset.data)
             # generation_prompt = generation_prompt.replace("$char_bio_inserted", f"1. CHARACTER BIO (Must be strictly followed): {char_info.character_bio}")
 
@@ -304,7 +307,9 @@ class GenerationService:
 
         # 5. (Опционально) Обновляем запись генерации ссылками на результаты
         # Предполагаем, что у модели Generation есть поле result_asset_ids
-        result_ids = [a.id for a in created_assets]
+        result_ids = []
+        for a in created_assets:
+            result_ids.append(a.id)
 
         generation.result_list = result_ids
         generation.status = GenerationStatus.DONE
@@ -480,3 +485,25 @@ class GenerationService:
                 logger.info(f"Cleaned up {count} stale generations (timeout)")
         except Exception as e:
             logger.error(f"Error cleaning up stale generations: {e}")
+
+    async def cleanup_old_data(self, days: int = 2):
+        """
+        Очистка старых данных:
+        1. Мягко удаляет генерации старше N дней
+        2. Мягко удаляет связанные ассеты + жёстко удаляет файлы из S3
+        """
+        try:
+            # 1. Мягко удаляем генерации и собираем asset IDs
+            gen_count, asset_ids = await self.dao.generations.soft_delete_old_generations(days=days)
+            
+            if gen_count > 0:
+                logger.info(f"Soft-deleted {gen_count} generations older than {days} days. "
+                           f"Found {len(asset_ids)} associated asset IDs.")
+            
+            # 2. Мягко удаляем ассеты + жёстко удаляем файлы из S3
+            if asset_ids:
+                purged = await self.dao.assets.soft_delete_and_purge_assets(asset_ids)
+                logger.info(f"Purged {purged} assets (soft-deleted + S3 files removed).")
+            
+        except Exception as e:
+            logger.error(f"Error during old data cleanup: {e}")

api/service/post_service.py

@@ -0,0 +1,79 @@
+from typing import List, Optional
+from datetime import datetime, UTC
+
+from repos.dao import DAO
+from models.Post import Post
+
+
+class PostService:
+    def __init__(self, dao: DAO):
+        self.dao = dao
+
+    async def create_post(
+        self,
+        date: datetime,
+        topic: str,
+        generation_ids: List[str],
+        project_id: Optional[str],
+        user_id: str,
+    ) -> Post:
+        post = Post(
+            date=date,
+            topic=topic,
+            generation_ids=generation_ids,
+            project_id=project_id,
+            created_by=user_id,
+        )
+        post_id = await self.dao.posts.create_post(post)
+        post.id = post_id
+        return post
+
+    async def get_post(self, post_id: str) -> Optional[Post]:
+        return await self.dao.posts.get_post(post_id)
+
+    async def get_posts(
+        self,
+        project_id: Optional[str],
+        user_id: str,
+        limit: int = 20,
+        offset: int = 0,
+        date_from: Optional[datetime] = None,
+        date_to: Optional[datetime] = None,
+    ) -> List[Post]:
+        return await self.dao.posts.get_posts(project_id, user_id, limit, offset, date_from, date_to)
+
+    async def update_post(
+        self,
+        post_id: str,
+        date: Optional[datetime] = None,
+        topic: Optional[str] = None,
+    ) -> Optional[Post]:
+        post = await self.dao.posts.get_post(post_id)
+        if not post:
+            return None
+
+        updates: dict = {"updated_at": datetime.now(UTC)}
+        if date is not None:
+            updates["date"] = date
+        if topic is not None:
+            updates["topic"] = topic
+
+        await self.dao.posts.update_post(post_id, updates)
+
+        # Return refreshed post
+        return await self.dao.posts.get_post(post_id)
+
+    async def delete_post(self, post_id: str) -> bool:
+        return await self.dao.posts.delete_post(post_id)
+
+    async def add_generations(self, post_id: str, generation_ids: List[str]) -> bool:
+        post = await self.dao.posts.get_post(post_id)
+        if not post:
+            return False
+        return await self.dao.posts.add_generations(post_id, generation_ids)
+
+    async def remove_generation(self, post_id: str, generation_id: str) -> bool:
+        post = await self.dao.posts.get_post(post_id)
+        if not post:
+            return False
+        return await self.dao.posts.remove_generation(post_id, generation_id)

models/Asset.py

@@ -30,6 +30,7 @@ class Asset(BaseModel):
     tags: List[str] = []
     created_by: Optional[str] = None
     project_id: Optional[str] = None
+    is_deleted: bool = False
     created_at: datetime = Field(default_factory=lambda: datetime.now(UTC))
     updated_at: datetime = Field(default_factory=lambda: datetime.now(UTC))
 

models/Post.py

@@ -0,0 +1,23 @@
+from datetime import datetime, timezone, UTC
+from typing import Optional, List
+from pydantic import BaseModel, Field, model_validator
+
+
+class Post(BaseModel):
+    id: Optional[str] = None
+    date: datetime
+    topic: str
+    generation_ids: List[str] = Field(default_factory=list)
+    project_id: Optional[str] = None
+    created_by: str
+    is_deleted: bool = False
+    created_at: datetime = Field(default_factory=lambda: datetime.now(UTC))
+    updated_at: datetime = Field(default_factory=lambda: datetime.now(UTC))
+
+    @model_validator(mode="after")
+    def ensure_tz_aware(self):
+        for field in ("date", "created_at", "updated_at"):
+            val = getattr(self, field)
+            if val is not None and val.tzinfo is None:
+                setattr(self, field, val.replace(tzinfo=timezone.utc))
+        return self

repos/assets_repo.py

@@ -1,5 +1,6 @@
-from typing import List, Optional
+from typing import Any, List, Optional
 import logging
+from datetime import datetime, UTC
 from bson import ObjectId
 from uuid import uuid4
 from motor.motor_asyncio import AsyncIOMotorClient
@@ -50,7 +51,7 @@ class AssetsRepo:
         return str(res.inserted_id)
 
     async def get_assets(self, asset_type: Optional[str] = None, limit: int = 10, offset: int = 0, with_data: bool = False, created_by: Optional[str] = None, project_id: Optional[str] = None) -> List[Asset]:
-        filter = {}
+        filter: dict[str, Any]= {"is_deleted": {"$ne": True}}
         if asset_type:
             filter["type"] = asset_type
         args = {}
@@ -202,6 +203,61 @@ class AssetsRepo:
         res = await self.collection.delete_one({"_id": ObjectId(asset_id)})
         return res.deleted_count > 0
 
+    async def soft_delete_and_purge_assets(self, asset_ids: List[str]) -> int:
+        """
+        Мягко удаляет ассеты и жёстко удаляет их файлы из S3.
+        Возвращает количество обработанных ассетов.
+        """
+        if not asset_ids:
+            return 0
+
+        object_ids = [ObjectId(aid) for aid in asset_ids if ObjectId.is_valid(aid)]
+        if not object_ids:
+            return 0
+
+        # Находим ассеты, которые ещё не удалены
+        cursor = self.collection.find(
+            {"_id": {"$in": object_ids}, "is_deleted": {"$ne": True}},
+            {"minio_object_name": 1, "minio_thumbnail_object_name": 1}
+        )
+
+        purged_count = 0
+        ids_to_update = []
+
+        async for doc in cursor:
+            ids_to_update.append(doc["_id"])
+
+            # Жёсткое удаление файлов из S3
+            if self.s3:
+                if doc.get("minio_object_name"):
+                    try:
+                        await self.s3.delete_file(doc["minio_object_name"])
+                    except Exception as e:
+                        logger.error(f"Failed to delete S3 object {doc['minio_object_name']}: {e}")
+                if doc.get("minio_thumbnail_object_name"):
+                    try:
+                        await self.s3.delete_file(doc["minio_thumbnail_object_name"])
+                    except Exception as e:
+                        logger.error(f"Failed to delete S3 thumbnail {doc['minio_thumbnail_object_name']}: {e}")
+
+            purged_count += 1
+
+        # Мягкое удаление + очистка ссылок на S3
+        if ids_to_update:
+            await self.collection.update_many(
+                {"_id": {"$in": ids_to_update}},
+                {
+                    "$set": {
+                        "is_deleted": True,
+                        "minio_object_name": None,
+                        "minio_thumbnail_object_name": None,
+                        "updated_at": datetime.now(UTC)
+                    }
+                }
+            )
+
+        return purged_count
+
     async def migrate_to_minio(self) -> dict:
         """Переносит данные и thumbnails из Mongo в MinIO."""
         if not self.s3:

repos/dao.py

@@ -7,6 +7,7 @@ from repos.user_repo import UsersRepo
 from repos.albums_repo import AlbumsRepo
 from repos.project_repo import ProjectRepo
 from repos.idea_repo import IdeaRepo
+from repos.post_repo import PostRepo
 
 
 from typing import Optional
@@ -21,3 +22,4 @@ class DAO:
         self.projects = ProjectRepo(client, db_name)
         self.users = UsersRepo(client, db_name)
         self.ideas = IdeaRepo(client, db_name)
+        self.posts = PostRepo(client, db_name)

repos/generation_repo.py

@@ -1,4 +1,4 @@
-from typing import Optional, List
+from typing import Any, Optional, List
 from datetime import datetime, timedelta, UTC
 
 from PIL.ImageChops import offset
@@ -17,7 +17,7 @@ class GenerationRepo:
         res = await self.collection.insert_one(generation.model_dump())
         return str(res.inserted_id)
 
-    async def get_generation(self, generation_id: str) -> Optional[Generation]:
+    async def get_generation(self, generation_id: str) -> Generation | None:
         res = await self.collection.find_one({"_id": ObjectId(generation_id)})
         if res is None:
             return None
@@ -28,7 +28,7 @@ class GenerationRepo:
     async def get_generations(self, character_id: Optional[str] = None, status: Optional[GenerationStatus] = None,
                               limit: int = 10, offset: int = 0, created_by: Optional[str] = None, project_id: Optional[str] = None, idea_id: Optional[str] = None) -> List[Generation]:
         
-        filter = {"is_deleted": False}
+        filter: dict[str, Any] = {"is_deleted": False}
         if character_id is not None:
             filter["linked_character_id"] = character_id
         if status is not None:
@@ -69,6 +69,8 @@ class GenerationRepo:
             args["project_id"] = project_id
         if idea_id is not None:
             args["idea_id"] = idea_id
+        if album_id is not None:
+            args["album_id"] = album_id
         return await self.collection.count_documents(args)
 
     async def get_generations_by_ids(self, generation_ids: List[str]) -> List[Generation]:
@@ -114,3 +116,37 @@ class GenerationRepo:
             }
         )
         return res.modified_count
+
+    async def soft_delete_old_generations(self, days: int = 2) -> tuple[int, List[str]]:
+        """
+        Мягко удаляет генерации старше N дней.
+        Возвращает (количество удалённых, список asset IDs для очистки).
+        """
+        cutoff_time = datetime.now(UTC) - timedelta(days=days)
+        filter_query = {
+            "is_deleted": False,
+            "status": {"$in": [GenerationStatus.DONE, GenerationStatus.FAILED]},
+            "created_at": {"$lt": cutoff_time}
+        }
+
+        # Сначала собираем asset IDs из удаляемых генераций
+        asset_ids: List[str] = []
+        cursor = self.collection.find(filter_query, {"result_list": 1, "assets_list": 1})
+        async for doc in cursor:
+            asset_ids.extend(doc.get("result_list", []))
+            asset_ids.extend(doc.get("assets_list", []))
+
+        # Мягкое удаление
+        res = await self.collection.update_many(
+            filter_query,
+            {
+                "$set": {
+                    "is_deleted": True,
+                    "updated_at": datetime.now(UTC)
+                }
+            }
+        )
+
+        # Убираем дубликаты
+        unique_asset_ids = list(set(asset_ids))
+        return res.modified_count, unique_asset_ids

repos/post_repo.py

@@ -0,0 +1,97 @@
+from typing import List, Optional
+from datetime import datetime
+import logging
+from bson import ObjectId
+from motor.motor_asyncio import AsyncIOMotorClient
+
+from models.Post import Post
+
+logger = logging.getLogger(__name__)
+
+
+class PostRepo:
+    def __init__(self, client: AsyncIOMotorClient, db_name="bot_db"):
+        self.collection = client[db_name]["posts"]
+
+    async def create_post(self, post: Post) -> str:
+        res = await self.collection.insert_one(post.model_dump())
+        return str(res.inserted_id)
+
+    async def get_post(self, post_id: str) -> Optional[Post]:
+        if not ObjectId.is_valid(post_id):
+            return None
+        res = await self.collection.find_one({"_id": ObjectId(post_id), "is_deleted": False})
+        if res:
+            res["id"] = str(res.pop("_id"))
+            return Post(**res)
+        return None
+
+    async def get_posts(
+        self,
+        project_id: Optional[str],
+        user_id: str,
+        limit: int = 20,
+        offset: int = 0,
+        date_from: Optional[datetime] = None,
+        date_to: Optional[datetime] = None,
+    ) -> List[Post]:
+        if project_id:
+            match = {"project_id": project_id, "is_deleted": False}
+        else:
+            match = {"created_by": user_id, "project_id": None, "is_deleted": False}
+
+        if date_from or date_to:
+            date_filter = {}
+            if date_from:
+                date_filter["$gte"] = date_from
+            if date_to:
+                date_filter["$lte"] = date_to
+            match["date"] = date_filter
+
+        cursor = (
+            self.collection.find(match)
+            .sort("date", -1)
+            .skip(offset)
+            .limit(limit)
+        )
+        posts = []
+        async for doc in cursor:
+            doc["id"] = str(doc.pop("_id"))
+            posts.append(Post(**doc))
+        return posts
+
+    async def update_post(self, post_id: str, data: dict) -> bool:
+        if not ObjectId.is_valid(post_id):
+            return False
+        res = await self.collection.update_one(
+            {"_id": ObjectId(post_id)},
+            {"$set": data},
+        )
+        return res.modified_count > 0
+
+    async def delete_post(self, post_id: str) -> bool:
+        if not ObjectId.is_valid(post_id):
+            return False
+        res = await self.collection.update_one(
+            {"_id": ObjectId(post_id)},
+            {"$set": {"is_deleted": True}},
+        )
+        return res.modified_count > 0
+
+    async def add_generations(self, post_id: str, generation_ids: List[str]) -> bool:
+        if not ObjectId.is_valid(post_id):
+            return False
+        res = await self.collection.update_one(
+            {"_id": ObjectId(post_id)},
+            {"$addToSet": {"generation_ids": {"$each": generation_ids}}},
+        )
+        return res.modified_count > 0
+
+    async def remove_generation(self, post_id: str, generation_id: str) -> bool:
+        if not ObjectId.is_valid(post_id):
+            return False
+        res = await self.collection.update_one(
+            {"_id": ObjectId(post_id)},
+            {"$pull": {"generation_ids": generation_id}},
+        )
+        return res.modified_count > 0