defmodule MvWeb.GlobalSettingsLiveTest do
  use MvWeb.ConnCase, async: true
  import Phoenix.LiveViewTest
  alias Mv.Membership

  describe "Global Settings LiveView" do
    setup %{conn: conn} do
      user = create_test_user(%{email: "admin@example.com"})
      conn = conn_with_oidc_user(conn, user)
      {:ok, conn: conn, user: user}
    end

    test "renders the global settings page", %{conn: conn} do
      {:ok, _view, html} = live(conn, ~p"/settings")

      assert html =~ "Club Settings"
      assert html =~ "Settings"
    end

    test "displays current club name", %{conn: conn} do
      # Set initial club name
      {:ok, settings} = Membership.get_settings()
      {:ok, _updated} = Membership.update_settings(settings, %{club_name: "Test Club"})

      {:ok, _view, html} = live(conn, ~p"/settings")

      assert html =~ "Test Club"
    end

    test "can update club name via form", %{conn: conn} do
      {:ok, view, _html} = live(conn, ~p"/settings")

      # Submit form with new club name
      assert view
             |> form("#settings-form", %{setting: %{club_name: "Updated Club Name"}})
             |> render_submit()

      # Check for success message
      assert render(view) =~ "Settings updated successfully"
      assert render(view) =~ "Updated Club Name"
    end

    test "shows error when club_name is empty", %{conn: conn} do
      {:ok, view, _html} = live(conn, ~p"/settings")

      # Submit form with empty club name
      html =
        view
        |> form("#settings-form", %{setting: %{club_name: ""}})
        |> render_submit()

      assert html =~ "must be present"
    end

    test "shows error when club_name is missing", %{conn: conn} do
      {:ok, view, _html} = live(conn, ~p"/settings")

      # Submit form with club_name explicitly set to empty string
      # (Phoenix forms will keep existing value if field is omitted)
      html =
        view
        |> form("#settings-form", %{setting: %{club_name: ""}})
        |> render_submit()

      assert html =~ "must be present"
    end
  end

  describe "SMTP / E-Mail section" do
    setup %{conn: conn} do
      user = create_test_user(%{email: "admin@example.com"})
      conn = conn_with_oidc_user(conn, user)
      {:ok, conn: conn, user: user}
    end

    test "renders SMTP section with host/port fields and test email area", %{conn: conn} do
      {:ok, _view, html} = live(conn, ~p"/settings")
      # Section title (Gettext key: SMTP or E-Mail per concept)
      assert html =~ "SMTP" or html =~ "E-Mail"
    end

    test "shows Send test email button when SMTP is configured", %{conn: conn} do
      {:ok, view, _html} = live(conn, ~p"/settings")
      # When Mv.Config.smtp_configured?() is true, button and recipient input should be present
      # In test env SMTP is typically not configured; we only assert the section exists
      html = render(view)
      assert html =~ "SMTP" or html =~ "E-Mail"
    end

    test "send test email with valid address shows success or error result", %{conn: conn} do
      {:ok, view, _html} = live(conn, ~p"/settings")

      if has_element?(view, "[data-testid='smtp-test-email-form']") do
        # Submit the test-email form (phx-submit) with a valid recipient address
        view
        |> form("[data-testid='smtp-test-email-form']", %{"to_email" => "test@example.com"})
        |> render_submit()

        # Result area must appear regardless of success or error
        assert has_element?(view, "[data-testid='smtp-test-result']")
      else
        assert render(view) =~ "Settings"
      end
    end

    test "shows warning when SMTP is not configured in production", %{conn: conn} do
      # Concept: in prod, show warning "SMTP is not configured. Transactional emails..."
      # In test we only check that the section exists; warning visibility is env-dependent
      {:ok, _view, html} = live(conn, ~p"/settings")
      assert html =~ "SMTP" or html =~ "E-Mail" or html =~ "Settings"
    end
  end

  describe "Authentication section when OIDC-only is enabled" do
    setup %{conn: conn} do
      user = create_test_user(%{email: "admin@example.com"})
      conn = conn_with_oidc_user(conn, user)
      {:ok, settings} = Membership.get_settings()
      original_oidc_only = Map.get(settings, :oidc_only, false)
      {:ok, _} = Membership.update_settings(settings, %{oidc_only: true})
      {:ok, conn: conn, original_oidc_only: original_oidc_only}
    end

    @describetag :ui
    test "registration checkbox is disabled when OIDC-only is enabled", %{
      conn: conn,
      original_oidc_only: original
    } do
      try do
        {:ok, view, _html} = live(conn, ~p"/settings")
        assert has_element?(view, "#registration-enabled-checkbox[disabled]")
      after
        {:ok, s} = Membership.get_settings()
        Membership.update_settings(s, %{oidc_only: original})
      end
    end

    @describetag :ui
    test "OIDC-only hint is visible when OIDC-only is enabled", %{
      conn: conn,
      original_oidc_only: original
    } do
      try do
        {:ok, view, _html} = live(conn, ~p"/settings")
        assert has_element?(view, "[data-testid='oidc-only-registration-hint']")
      after
        {:ok, s} = Membership.get_settings()
        Membership.update_settings(s, %{oidc_only: original})
      end
    end

    test "when OIDC-only is disabled, registration checkbox is enabled and can be toggled", %{
      conn: conn,
      original_oidc_only: original
    } do
      try do
        {:ok, settings} = Membership.get_settings()
        Membership.update_settings(settings, %{oidc_only: false})

        {:ok, view, _html} = live(conn, ~p"/settings")
        refute has_element?(view, "#registration-enabled-checkbox[disabled]")

        initial_checked =
          view |> element("#registration-enabled-checkbox") |> render() =~ "checked"

        view
        |> element("#registration-enabled-checkbox")
        |> render_click()

        new_checked = view |> element("#registration-enabled-checkbox") |> render() =~ "checked"
        assert new_checked != initial_checked
      after
        {:ok, s} = Membership.get_settings()
        Membership.update_settings(s, %{oidc_only: original})
      end
    end
  end
end