defmodule ToweropsWeb.ConfigTimelineLiveHelpersTest do
  use ExUnit.Case, async: true

  alias ToweropsWeb.ConfigTimelineLive

  describe "change_size_class/1" do
    test "> 50 returns error styling" do
      assert "bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400" ==
               ConfigTimelineLive.change_size_class(51)

      assert "bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400" ==
               ConfigTimelineLive.change_size_class(1_000)
    end

    test "21..50 returns warning styling" do
      assert "bg-yellow-100 text-yellow-800 dark:bg-yellow-900/30 dark:text-yellow-400" ==
               ConfigTimelineLive.change_size_class(21)

      assert "bg-yellow-100 text-yellow-800 dark:bg-yellow-900/30 dark:text-yellow-400" ==
               ConfigTimelineLive.change_size_class(50)
    end

    test "<= 20 returns info styling" do
      assert "bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400" == ConfigTimelineLive.change_size_class(0)

      assert "bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400" ==
               ConfigTimelineLive.change_size_class(20)
    end

    test "non-integer returns info styling" do
      assert "bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400" ==
               ConfigTimelineLive.change_size_class(nil)

      assert "bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400" ==
               ConfigTimelineLive.change_size_class("foo")
    end
  end

  describe "timeline_event/1" do
    test "serializes to ISO timestamp map" do
      changed_at = ~U[2026-01-15 12:00:00Z]

      event = %{
        id: "evt-1",
        changed_at: changed_at,
        sections_changed: ["dhcp", "ospf"],
        change_size: 42
      }

      assert %{
               id: "evt-1",
               t: "2026-01-15T12:00:00Z",
               sections: ["dhcp", "ospf"],
               size: 42
             } == ConfigTimelineLive.timeline_event(event)
    end
  end
end