feat: user dependencies

In addition to the by-query and by-body db fetch dependencies. Users also have a by-claim dependency.

Issue #6

src/user/dependencies.py

@@ -8,4 +8,47 @@ Classes:
 Functions:
  - List: Description
  - Functions: Description
-"""
+"""
+from typing import Annotated
+from fastapi import Depends, Query
+
+from src.user.exceptions import UserNotFoundException
+from src.user.models import User
+
+from src.auth.service import claims_dependency
+from src.database import db_dependency
+from src.user.schemas import UserIDMixin
+
+
+async def get_user_model_claims(claims: claims_dependency, db: db_dependency):
+	user_id = claims.get("db_id", None)
+	if user_id is None:
+		raise UserNotFoundException()
+
+	user_model = db.get(User, user_id)
+	if user_model is None:
+		raise UserNotFoundException(user_id=user_id)
+
+	return user_model
+
+user_model_claims_dependency = Annotated[type[User], Depends(get_user_model_claims)]
+
+
+async def get_user_model_query(db: db_dependency, user_id: Annotated[int, Query(gt=0)]):
+	user_model = db.get(User, user_id)
+	if user_model is None:
+		raise UserNotFoundException(user_id=user_id)
+
+	return user_model
+
+user_model_query_dependency = Annotated[type[User], Depends(get_user_model_query)]
+
+
+async def get_user_model_body(db: db_dependency, request_model: UserIDMixin):
+	user_model = db.get(User, request_model.user_id)
+	if user_model is None:
+		raise UserNotFoundException(user_id=request_model.user_id)
+
+	return user_model
+
+user_model_body_dependency = Annotated[type[User], Depends(get_user_model_body)]