defmodule ToweropsWeb.Helpers.StatusHelpers do
  @moduledoc """
  Helpers for displaying organization status indicators.
  """

  alias Towerops.Alerts
  alias Towerops.Organizations.Organization

  @doc """
  Returns a status emoji based on the organization's active alerts.

  ## Status Logic
  - 🔴 Red circle: Critical alerts (device_down, agent_offline, or severity 1)
  - 🟡 Yellow circle: Warning alerts (severity 2 or other active alerts)
  - 🟢 Green circle: No active alerts

  ## Examples

      iex> status_emoji(%Organization{id: org_id})
      "🔴"
  """
  def status_emoji(nil), do: "🟢"

  def status_emoji(%Organization{id: organization_id}) do
    case get_organization_status(organization_id) do
      :critical -> "🔴"
      :warning -> "🟡"
      :healthy -> "🟢"
    end
  end

  @doc """
  Returns a page title with status emoji prepended.

  ## Examples

      iex> title_with_status("Dashboard", %Organization{})
      "🔴 Dashboard"
  """
  def title_with_status(title, organization) do
    emoji = status_emoji(organization)
    "#{emoji} #{title}"
  end

  defp get_organization_status(organization_id) do
    alerts = Alerts.list_organization_active_alerts(organization_id)

    cond do
      has_critical_alerts?(alerts) -> :critical
      Enum.any?(alerts) -> :warning
      true -> :healthy
    end
  end

  defp has_critical_alerts?(alerts) do
    Enum.any?(alerts, fn alert ->
      # Device down or agent offline are always critical
      # Severity 1 is critical
      alert.alert_type in ["device_down", "agent_offline"] or
        alert.severity == 1
    end)
  end
end