from typing import Any, List, Optional

from fastapi import APIRouter, Depends, status
from sqlalchemy.orm import Session

from app import crud, schemas
from app.api.errors import ItemNotFoundException
from app.db.session import get_db

router = APIRouter()


@router.get("", response_model=List[schemas.Item])
def read_items(
    db: Session = Depends(get_db),
    skip: int = 0,
    limit: int = 100,
    is_active: Optional[bool] = None,
) -> Any:
    """
    Retrieve items.
    """
    if is_active is not None:
        items = crud.item.get_multi_by_active(
            db, skip=skip, limit=limit, is_active=is_active
        )
    else:
        items = crud.item.get_multi(db, skip=skip, limit=limit)
    return items


@router.post("", response_model=schemas.Item, status_code=status.HTTP_201_CREATED)
def create_item(
    *,
    db: Session = Depends(get_db),
    item_in: schemas.ItemCreate,
) -> Any:
    """
    Create new item.
    """
    item = crud.item.create(db=db, obj_in=item_in)
    return item


@router.get("/{item_id}", response_model=schemas.Item)
def read_item(
    *,
    db: Session = Depends(get_db),
    item_id: int,
) -> Any:
    """
    Get item by ID.
    """
    item = crud.item.get(db=db, id=item_id)
    if not item:
        raise ItemNotFoundException(item_id=item_id)
    return item


@router.put("/{item_id}", response_model=schemas.Item)
def update_item(
    *,
    db: Session = Depends(get_db),
    item_id: int,
    item_in: schemas.ItemUpdate,
) -> Any:
    """
    Update an item.
    """
    item = crud.item.get(db=db, id=item_id)
    if not item:
        raise ItemNotFoundException(item_id=item_id)
    item = crud.item.update(db=db, db_obj=item, obj_in=item_in)
    return item


@router.delete("/{item_id}", response_model=schemas.Item)
def delete_item(
    *,
    db: Session = Depends(get_db),
    item_id: int,
) -> Any:
    """
    Delete an item.
    """
    item = crud.item.get(db=db, id=item_id)
    if not item:
        raise ItemNotFoundException(item_id=item_id)
    item = crud.item.remove(db=db, id=item_id)
    return item