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ua_inspector

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User agent parser library

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ua_inspector lib ua_inspector client_hints browsers.ex
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lib/ua_inspector/client_hints/browsers.ex 

defmodule UAInspector.ClientHints.Browsers do

  @moduledoc false



  use UAInspector.Storage.Server



  require Logger



  alias UAInspector.Config

  alias UAInspector.Util.YAML



  @behaviour UAInspector.Storage.ClientHints



  @doc false

  def start_link(init_arg) do

    GenServer.start_link(__MODULE__, init_arg, name: __MODULE__)

  end



  @impl UAInspector.Storage.ClientHints

  def source do

    {"client_hints.browsers.yml", Config.database_url(:client_hints, "/browsers.yml")}

  end



  defp parse_yaml_entries({:ok, entries}, _),

    do: Map.new(entries, fn {k, v} -> {String.downcase(k), v} end)



  defp parse_yaml_entries({:error, error}, database) do

    _ =

      unless Config.get(:startup_silent) do

        Logger.info("Failed to load client hints #{database}: #{inspect(error)}")

      end



    %{}

  end



  defp read_database do

    {local, _remote} = source()

    database = Path.join([Config.database_path(), local])



    database

    |> YAML.read_file()

    |> parse_yaml_entries(database)

  end

end