"""
Router dependencies for the IAM module

Classes:
 - List: Description
 - Classes: Description

Functions:
 - List: Description
 - Functions: Description
"""
from typing import Annotated, Optional

from fastapi import Depends, Query

from src.database import db_dependency

from src.iam.models import Group
from src.iam.exceptions import GroupNotFoundException, PermNotFoundException
from src.iam.schemas import GroupIDMixin, PermIDMixin


def get_group_model_query(db: db_dependency, group_id: Annotated[int, Query(gt=0)]) -> type[Group]:
	group_model = db.get(Group, group_id)
	if group_model is None:
		raise GroupNotFoundException(group_id)

	return group_model

group_model_query_dependency = Annotated[type[Group], Depends(get_group_model_query)]


def get_group_model_body(db: db_dependency, request_model: Optional[GroupIDMixin] = None) -> type[Group]:
	group_id = getattr(request_model, "group_id", None)
	if group_id is None:
		raise GroupNotFoundException()
	group_model = db.get(Group, group_id)
	if group_model is None:
		raise GroupNotFoundException(group_id)

	return group_model

group_model_body_dependency = Annotated[type[Group], Depends(get_group_model_body)]


def get_perm_model_body(db: db_dependency, request_model: Optional[PermIDMixin] = None) -> type[Group]:
	perm_id = getattr(request_model, "permission_id", None)
	if perm_id is None:
		raise PermNotFoundException
	group_model = db.get(Group, perm_id)
	if group_model is None:
		raise PermNotFoundException(perm_id)

	return group_model

perm_model_body_dependency = Annotated[type[Group], Depends(get_perm_model_body)]