defmodule AmmopricesWeb.CaliberLive.ShowTest do
  use AmmopricesWeb.ConnCase

  import Ammoprices.Fixtures
  import Phoenix.LiveViewTest

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

    %{caliber: caliber, retailer: retailer}
  end

  describe "CaliberLive.Show" do
    test "renders caliber page with title", %{conn: conn, caliber: caliber} do
      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#caliber-heading")
    end

    test "renders product listings with stream", %{conn: conn, caliber: caliber, retailer: retailer} do
      product = product_fixture(%{caliber: caliber, retailer: retailer, title: "Federal 9mm 115gr"})
      now = DateTime.truncate(DateTime.utc_now(), :second)
      snapshot_fixture(%{product: product, price_per_round_cents: 28, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#products")
      assert has_element?(view, "#products [id]")
    end

    test "shows empty state when no products", %{conn: conn, caliber: caliber} do
      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#products-empty")
    end

    test "filters by in-stock", %{conn: conn, caliber: caliber, retailer: retailer} do
      in_stock = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true, title: "In Stock Product"})
      oos = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: false, title: "Out of Stock Product"})
      now = DateTime.truncate(DateTime.utc_now(), :second)
      snapshot_fixture(%{product: in_stock, price_per_round_cents: 28, in_stock: true, recorded_at: now})
      snapshot_fixture(%{product: oos, price_per_round_cents: 22, in_stock: false, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      # Default is in_stock: true
      assert has_element?(view, "#filter-in-stock")
    end

    test "renders price stats banner", %{conn: conn, caliber: caliber, retailer: retailer} do
      product = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true})
      now = DateTime.truncate(DateTime.utc_now(), :second)
      snapshot_fixture(%{product: product, price_per_round_cents: 25, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#price-stats")
    end

    test "renders chart container with data attribute", %{conn: conn, caliber: caliber, retailer: retailer} do
      product = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true})
      now = DateTime.truncate(DateTime.utc_now(), :second)
      snapshot_fixture(%{product: product, price_per_round_cents: 30, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#price-chart-container")
      assert has_element?(view, "[data-chart-data]")
    end

    test "renders time range buttons", %{conn: conn, caliber: caliber} do
      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#range-7d")
      assert has_element?(view, "#range-30d")
      assert has_element?(view, "#range-90d")
      assert has_element?(view, "#range-1y")
      assert has_element?(view, "#range-all")
    end

    test "changes chart range when range button clicked", %{conn: conn, caliber: caliber, retailer: retailer} do
      product = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true})
      now = DateTime.truncate(DateTime.utc_now(), :second)
      snapshot_fixture(%{product: product, price_per_round_cents: 30, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert view |> element("#range-7d") |> render_click()
      assert has_element?(view, "#price-chart-container")
    end

    test "renders casing filter buttons", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)

      brass = product_fixture(%{caliber: caliber, retailer: retailer, casing: "brass", in_stock: true})
      steel = product_fixture(%{caliber: caliber, retailer: retailer, casing: "steel", in_stock: true})
      snapshot_fixture(%{product: brass, price_per_round_cents: 28, in_stock: true, recorded_at: now})
      snapshot_fixture(%{product: steel, price_per_round_cents: 20, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#filter-casing-brass")
      assert has_element?(view, "#filter-casing-steel")
    end

    test "renders grain weight filter buttons", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)

      p115 = product_fixture(%{caliber: caliber, retailer: retailer, grain_weight: 115, in_stock: true})
      p147 = product_fixture(%{caliber: caliber, retailer: retailer, grain_weight: 147, in_stock: true})
      snapshot_fixture(%{product: p115, price_per_round_cents: 25, in_stock: true, recorded_at: now})
      snapshot_fixture(%{product: p147, price_per_round_cents: 40, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#filter-grain-115")
      assert has_element?(view, "#filter-grain-147")
    end

    test "renders subsonic filter toggle", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)
      product = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true})
      snapshot_fixture(%{product: product, price_per_round_cents: 25, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#filter-subsonic")
    end

    test "displays grain weight and brand in product table", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)

      product =
        product_fixture(%{
          caliber: caliber,
          retailer: retailer,
          grain_weight: 115,
          brand: "Federal",
          in_stock: true
        })

      snapshot_fixture(%{product: product, price_per_round_cents: 28, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      assert has_element?(view, "#products [id]")
    end

    test "filters by casing when clicked", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)

      brass =
        product_fixture(%{caliber: caliber, retailer: retailer, casing: "brass", in_stock: true, title: "Brass Ammo"})

      steel =
        product_fixture(%{caliber: caliber, retailer: retailer, casing: "steel", in_stock: true, title: "Steel Ammo"})

      snapshot_fixture(%{product: brass, price_per_round_cents: 28, in_stock: true, recorded_at: now})
      snapshot_fixture(%{product: steel, price_per_round_cents: 20, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      # Click steel filter
      view |> element("#filter-casing-steel") |> render_click()

      # Should still have the filter button active
      assert has_element?(view, "#filter-casing-steel")
    end

    test "receives real-time price updates via PubSub", %{conn: conn, caliber: caliber, retailer: retailer} do
      now = DateTime.truncate(DateTime.utc_now(), :second)
      product = product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true})
      snapshot_fixture(%{product: product, price_per_round_cents: 30, in_stock: true, recorded_at: now})

      {:ok, view, _html} = live(conn, "/calibers/#{caliber.slug}")

      # Add a new product + snapshot
      new_product =
        product_fixture(%{caliber: caliber, retailer: retailer, in_stock: true, title: "New Product", casing: "brass"})

      snapshot_fixture(%{product: new_product, price_per_round_cents: 18, in_stock: true, recorded_at: now})

      # Broadcast price update
      Phoenix.PubSub.broadcast(Ammoprices.PubSub, "prices:updated", {:prices_updated, %{}})

      # The view should re-render with updated data
      html = render(view)
      assert html =~ "New Product"
    end
  end
end