defmodule Ammoprices.Scraping.RunnerTest do
  use Ammoprices.DataCase, async: true

  import Ammoprices.Fixtures

  alias Ammoprices.Catalog
  alias Ammoprices.Scraping.Retailers.LuckyGunner
  alias Ammoprices.Scraping.Runner

  @fixture_html File.read!("test/fixtures/lucky_gunner/9mm.html")

  setup do
    retailer = retailer_fixture(%{name: "Lucky Gunner", slug: "lucky-gunner", base_url: "https://www.luckygunner.com"})
    caliber = caliber_fixture(%{name: "9mm Luger", slug: "9mm-luger", category: "handgun", aliases: ["9mm", "9x19"]})

    Req.Test.stub(Ammoprices.Scraping.HttpClient, fn conn ->
      Req.Test.html(conn, @fixture_html)
    end)

    %{retailer: retailer, caliber: caliber}
  end

  describe "run/2" do
    test "creates products and snapshots from scrape", %{caliber: caliber} do
      scraper = LuckyGunner

      assert {:ok, stats} = Runner.run(scraper, caliber)
      assert stats.products_count == 4
      assert stats.snapshots_count == 4

      products = Catalog.list_products_for_caliber(caliber.id)
      assert length(products) == 4
    end

    test "updates retailer last_scraped_at", %{caliber: caliber} do
      scraper = LuckyGunner

      {:ok, _stats} = Runner.run(scraper, caliber)

      retailer = Catalog.get_retailer_by_slug!("lucky-gunner")
      assert retailer.last_scraped_at
    end

    test "handles scraper returning nil category_url", %{caliber: _caliber} do
      caliber = caliber_fixture(%{name: "Unknown", slug: "unknown", category: "handgun"})
      scraper = LuckyGunner

      assert {:ok, stats} = Runner.run(scraper, caliber)
      assert stats.products_count == 0
    end
  end
end