# -*- encoding : utf-8 -*-
module MusicBrainz
  class Middleware < Faraday::Middleware
    def call(env)
      env[:request_headers].merge!(
        "User-Agent" => user_agent_string,
        "Via"        => via_string
      )
      @app.call(env)
    end

    def user_agent_string
      "#{config.app_name}/#{config.app_version} ( #{config.contact} )"
    end

    def via_string
      "gem musicbrainz/#{VERSION} (#{GH_PAGE_URL})"
    end

    def config
      MusicBrainz.config
    end
  end
end