68 lines
1.5 KiB
Elixir
68 lines
1.5 KiB
Elixir
defmodule ChronoscopeWeb.ClientActivator do
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use GenServer
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require Logger
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alias Chronoscope.NTS
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alias Chronoscope.NTS.Parse
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alias ChronoscopeWeb.Endpoint
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@topic Application.compile_env(:chronoscope, :nts_topic)
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@nts_file Application.compile_env(:chronoscope, :nts_file)
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def start_link(_) do
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GenServer.start_link(__MODULE__, :ok, name: __MODULE__)
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end
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@impl true
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def init(_) do
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Endpoint.subscribe(@topic)
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{:ok, %{nts_servers: nts_servers() |> tap(&start_clients/1)}}
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end
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@impl true
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def handle_info(%{topic: @topic, event: "initializing", payload: server}, state) do
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if server in state.nts_servers do
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Logger.info("activating #{inspect(server)}")
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NTS.auto_refresh(server)
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end
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{:noreply, state}
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end
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@impl true
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def handle_info(%{topic: @topic, event: "cancel-auto-refresh", payload: server}, state) do
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if server in state.nts_servers do
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Logger.info("#{inspect(server)} was deactivated")
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end
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{:noreply, state}
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end
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@impl true
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def handle_info(_, state) do
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{:noreply, state}
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end
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@impl true
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def handle_call(:get_nts_servers, _from, state) do
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{:reply, state.nts_servers, state}
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end
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defp start_clients(servers) do
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Enum.each(servers, &NTS.start_client/1)
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end
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defp nts_servers() do
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File.touch(Application.app_dir(:chronoscope, @nts_file))
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Application.app_dir(:chronoscope, @nts_file)
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|> File.stream!()
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|> Stream.map(&String.trim/1)
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|> Stream.filter(&(&1 != ""))
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|> Stream.map(&Parse.parse_nts_server/1)
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|> Enum.to_list()
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end
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end
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