Claudio Ortolina
57 lines
1.4 KiB
Elixir
57 lines
1.4 KiB
Elixir
defmodule LastFm.Refresh do
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use GenServer
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require Logger
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alias LastFm.Feed
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@refresh_interval System.convert_time_unit(60, :second, :millisecond)
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def start_link(config) do
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GenServer.start_link(__MODULE__, config, name: __MODULE__)
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end
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@impl true
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def init(config) do
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if enabled?(config) do
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{:ok, config, {:continue, :refresh}}
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else
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:ignore
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end
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end
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@impl true
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def handle_continue(:refresh, config) do
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case config.api.get_recent_tracks(config.user, config.api_key) do
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{:ok, tracks} ->
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Feed.update(tracks)
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Process.send_after(self(), :refresh, @refresh_interval)
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{:noreply, config}
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{:error, _reason} ->
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# TODO: think about failure scenario - error is logged at the API level
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Process.send_after(self(), :refresh, @refresh_interval)
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{:noreply, config}
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end
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end
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@impl true
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def handle_info(:refresh, config) do
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case config.api.get_recent_tracks(config.user, config.api_key) do
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{:ok, tracks} ->
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Feed.update(tracks)
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Process.send_after(self(), :refresh, @refresh_interval)
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{:noreply, config}
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{:error, _reason} ->
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# TODO: think about failure scenario - error is logged at the API level
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Process.send_after(self(), :refresh, @refresh_interval)
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{:noreply, config}
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end
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end
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defp enabled?(config) do
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config.api && config.api_key
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end
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end
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