from __future__ import annotations

from typing import List, Optional

import aiosqlite
from fastapi import APIRouter, Depends, Response
from pydantic import Field

import products
from api.deps import get_db
from common import ApiModel

router = APIRouter(prefix="/products", tags=["products"])


class ProductUrl(ApiModel):
    url: str
    tags: List[str] = Field(default_factory=list)


@router.post(
    "",
    operation_id="createProduct",
    summary="Create or fetch a product from a URL",
    response_model=products.Product,
)
async def create_product(
    url: ProductUrl, response: Response, conn: aiosqlite.Connection = Depends(get_db)
) -> Optional[products.Product]:
    product = await products.get_or_create(conn, url.url, url.tags)
    if product:
        response.headers["Location"] = f"/api/v1/products/{product.id}"
    return product