from fastapi import APIRouter, Request, Response

from app.deps import SessionDep, ensure_web_session, web_owner
from app.schemas import CartAdd, CartOut
from app.services import add_item, load_cart, remove_item

router = APIRouter()


@router.get("/cart", response_model=CartOut)
async def get_cart(request: Request, response: Response, db: SessionDep) -> CartOut:
    session_id = await ensure_web_session(request, response, db)
    return await load_cart(db, web_owner(session_id))


@router.post("/cart/items", response_model=CartOut)
async def post_item(body: CartAdd, request: Request, response: Response, db: SessionDep) -> CartOut:
    session_id = await ensure_web_session(request, response, db)
    return await add_item(db, owner_key=web_owner(session_id), product_id=body.product_id, qty=body.qty)


@router.delete("/cart/items/{product_id}", response_model=CartOut)
async def delete_item(product_id: int, request: Request, response: Response, db: SessionDep) -> CartOut:
    session_id = await ensure_web_session(request, response, db)
    return await remove_item(db, owner_key=web_owner(session_id), product_id=product_id)