from typing import Sequence
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select, delete
from models.items import Item
from schemas.items import ItemIn


async def get_item_by_id(id: int, db: AsyncSession) -> Item | None:
    result = await db.execute(select(Item).where(Item.id == id))
    
    item = result.scalar_one_or_none()

    return item


async def get_items(db: AsyncSession) -> Sequence[Item]:
    result = await db.execute(select(Item))

    items = result.scalars().all()

    return items


async def create_item(payload: ItemIn, db: AsyncSession) -> Item:
    item = Item(text=payload.text)
    
    db.add(item)
    await db.commit()
    await db.refresh(item)

    return item


async def update_item(item: Item, payload: ItemIn, db: AsyncSession) -> Item:
    item.text = payload.text
    await db.commit()

    await db.refresh(item)

    return item


async def delete_item(item: Item, db: AsyncSession):

    await db.delete(item)
    await db.commit()