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

api/dependency.py

@@ -57,4 +57,9 @@ async def get_project_id(x_project_id: Optional[str] = Header(None, alias="X-Pro
     return x_project_id
 
 async def get_album_service(dao: DAO = Depends(get_dao)) -> AlbumService:
-    return AlbumService(dao)
+    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/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/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)