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

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/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