defmodule Integrations.S3.Display do
  @moduledoc """
  Dashboard panel for `Integrations.S3` (same package).

  Nested under the monitor's own namespace deliberately — the package's
  top-level module name never changes, and this module's name is
  guaranteed distinct from any separately-published standalone display
  package. `Display.BundledDefault` auto-hooks this whenever
  `Integrations.S3` starts, the same as if they were still one module.
  """

  use CodeNameRaven.Display, category: :infrastructure, size_hint: :medium

  @impl true
  def display_name, do: "S3 Storage"

  @impl true
  def compatible_monitors, do: [Integrations.S3]

  @impl true
  def render(assigns) do
    result = assigns[:result]
    assigns = Map.merge(assigns, %{result: result})

    ~H"""
    <div class="space-y-3">
      <div class="flex items-start justify-between gap-2">
        <div class="min-w-0">
          <h2 class="text-sm font-semibold text-base-content truncate">
            <%= @config.name || storage_title(@config.params) %>
          </h2>
          <p class="text-xs font-mono text-base-content/40 truncate">
            <%= get_in(@config.params, [:endpoint]) || get_in(@config.params, ["endpoint"]) %>
          </p>
        </div>
        <CodeNameRaven.MonitorComponents.status_chip status={@status} />
      </div>

      <div :if={@result} class="flex gap-2 flex-wrap">
        <CodeNameRaven.MonitorComponents.stat
          label="Liveness"
          value={status_label(@result.liveness)} />
        <CodeNameRaven.MonitorComponents.stat
          :if={@result.readiness != :skipped}
          label="Readiness"
          value={status_label(@result.readiness)} />
        <CodeNameRaven.MonitorComponents.stat
          :if={@result.bucket_check != :skipped}
          label={@result.bucket || "Bucket"}
          value={status_label(@result.bucket_check)} />
      </div>

      <CodeNameRaven.MonitorComponents.error_message message={@last_error} />
      <CodeNameRaven.MonitorComponents.check_time checked_at={@last_checked_at} />
    </div>
    """
  end

  # ---------------------------------------------------------------------------
  # Private helpers
  # ---------------------------------------------------------------------------

  defp status_label(:up),       do: "OK"
  defp status_label(:degraded), do: "Degraded"
  defp status_label(:down),     do: "Down"
  defp status_label(:skipped),  do: "—"
  defp status_label(_),         do: "?"

  defp storage_title(params) do
    ep     = params[:endpoint] || params["endpoint"] || "S3"
    bucket = params[:bucket]   || params["bucket"]
    if bucket, do: "#{ep}/#{bucket}", else: ep
  end
end