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gust_web

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The web interface for Gust

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gust_web lib gust_web live system_live.ex
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lib/gust_web/live/system_live.ex 

defmodule GustWeb.SystemLive do

  use GustWeb, :live_view



  @environment Mix.env()



  @impl true

  def mount(_params, _session, socket) do

    {:ok,

     socket

     |> assign(:page_title, "System")

     |> assign(:system, system_info())}

  end



  def format_uptime(total_seconds) do

    days = div(total_seconds, 86_400)

    hours = total_seconds |> rem(86_400) |> div(3_600)

    minutes = total_seconds |> rem(3_600) |> div(60)



    [

      days > 0 && "#{days}d",

      (days > 0 or hours > 0) && "#{hours}h",

      "#{minutes}m"

    ]

    |> Enum.filter(& &1)

    |> Enum.join(" ")

  end



  defp system_info do

    {uptime_ms, _since_last_call_ms} = :erlang.statistics(:wall_clock)



    %{

      connected_nodes: Node.list() |> Enum.sort(),

      current_node: Node.self(),

      environment: @environment,

      gust_version: application_version(:gust),

      gust_web_version: application_version(:gust_web),

      run_dispatcher: Application.get_env(:gust, :run_dispatcher),

      role: System.get_env("GUST_ROLE", "single"),

      uptime_seconds: div(uptime_ms, 1_000)

    }

  end



  defp application_version(application) do

    application

    |> Application.spec(:vsn)

    |> to_string()

  end

end