module Xcal
  module Parktronic
    module Routes

      module Alarms

        # Fetches latest alarms
        #
        # Accepted attributes:
        #   +page+ set page, defaults to 1
        #   +per_page+ set per page value, defaults to 10
        def get_paged_alarms(args = {})
          args.merge!(:access_token => access_token)
          response = http.get("/#{api_version}/alarms?#{URI.encode_www_form(args)}")

          generic_response = Xcal::Parktronic::GenericResponse.new(response.body)
          response.code == '200' ? generic_response.alarms.map(&:alarm) : generic_response

          # TODO Add caching
        end
        alias :alarms :get_paged_alarms


        # Fetches alarm with specific ID
        #
        # Accepted attributes:
        # +id+ alarm ID
        def get_alarm(id)
          response = http.get("/#{api_version}/alarms/#{id}?access_token=#{access_token}")

          generic_response = Xcal::Parktronic::GenericResponse.new(response.body)
          response.code == '200' ? generic_response.alarm : generic_response

          # TODO Add caching
        end
        alias :alarm :get_alarm

        # Posts new alarm
        #
        # Alarm argument should be a hash of Alarm + Events data.
        #
        # Example of alarm data:
        #
        #    +alarm+ :
        #    {
        #      :name => 'alarm name',
        #      :originating_system => 'Source System',
        #      :impact_level => 'low',
        #      :tag_list => %w(taga tagb)
        #    }
        #
        # Example of events array:
        #    +events+ :
        #    [
        #      {
        #        :subject => 'EventSubj',
        #        :description => 'EventDesc',
        #        :host_impacted => 'host',
        #        :initiated_at => '2013-11-22T01:00:24Z',
        #        :service_impacted => 'EventSvc',
        #        :incident_status => 'CRITICAL'
        #      }
        #    ]
        #
        def post_alarm(alarm = {}, events = [])
          request = Net::HTTP::Post.new("/#{api_version}/alarms", 'Content-Type' => 'application/json')
          request.body = { access_token: access_token, alarm: alarm, events: events }.to_json
          response = http.start { |net| net.request(request) }

          Xcal::Parktronic::GenericResponse.new(response.body)
        end

      end

    end
  end
end