module Fog
  module Metering
    class OpenStack
      class Real

        def list_meters(options=[])

          data = {
            'q' => Array.new
          }

          options.each do |opt|
            filter = {}

            ['field', 'op', 'value'].each do |key|
              filter[key] = opt[key] if opt[key]
            end

            data['q'] << filter unless filter.empty?
          end

          request(
            :body     => Fog::JSON.encode(data),
            :expects  => 200,
            :method   => 'GET',
            :path     => 'meters'
          )
        end

      end

      class Mock

        def list_meters(options={})
          response = Excon::Response.new
          response.status = 200
          response.body = [{
            'user_id'=>'1d5fd9eda19142289a60ed9330b5d284',
            'name'=>'image.size',
            'resource_id'=>'glance',
            'project_id'=>'d646b40dea6347dfb8caee2da1484c56',
            'type'=>'gauge',
            'unit'=>'bytes'}]
          response
        end
      end

    end
  end
end