from typing import List

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

from app.db.repositories import item_repository
from app.db.schemas.item import Item, ItemCreate, ItemUpdate
from app.db.session import get_db

router = APIRouter(tags=["items"])


@router.get("/items/", response_model=List[Item])
def read_items(
    skip: int = Query(0, ge=0),
    limit: int = Query(100, ge=1, le=100),
    db: Session = Depends(get_db),
):
    """
    Retrieve items with pagination support.
    """
    items = item_repository.get_multi(db=db, skip=skip, limit=limit)
    return items


@router.post("/items/", response_model=Item, status_code=status.HTTP_201_CREATED)
def create_item(
    item_in: ItemCreate,
    db: Session = Depends(get_db),
):
    """
    Create a new item.
    """
    item = item_repository.create(db=db, obj_in=item_in)
    return item


@router.get("/items/{item_id}", response_model=Item)
def read_item(
    item_id: int,
    db: Session = Depends(get_db),
):
    """
    Get item by ID.
    """
    item = item_repository.get(db=db, id=item_id)
    if item is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Item not found",
        )
    return item


@router.put("/items/{item_id}", response_model=Item)
def update_item(
    item_id: int,
    item_in: ItemUpdate,
    db: Session = Depends(get_db),
):
    """
    Update an item.
    """
    item = item_repository.get(db=db, id=item_id)
    if item is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Item not found",
        )
    item = item_repository.update(db=db, db_obj=item, obj_in=item_in)
    return item


@router.delete(
    "/items/{item_id}", status_code=status.HTTP_204_NO_CONTENT, response_model=None
)
def delete_item(
    item_id: int,
    db: Session = Depends(get_db),
):
    """
    Delete an item.
    """
    item = item_repository.get(db=db, id=item_id)
    if item is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Item not found",
        )
    item_repository.remove(db=db, id=item_id)
    return None