module Kuroko2
  module Workflow
    module Notifier
      class Hipchat
        attr_reader :hipchat, :message_builder

        USER_NAME = 'kuroko2'

        def initialize(instance)
          hipchat_options = Kuroko2.config.notifiers.hipchat.try!(:options).try!(:symbolize_keys) || {}
          @instance   = instance
          @definition = instance.job_definition
          @hipchat    = HipChat::Client.new(Kuroko2.config.notifiers.hipchat.api_token, hipchat_options)
          @message_builder = Workflow::Notifier::Concerns::ChatMessageBuilder.new(instance)
        end

        def notify_launch
          if @definition.hipchat_notify_finished?
            message = build_message(level: 'SUCCESS', text: message_builder.launched_text)
            message << "<br>"
            message << @instance.logs.reverse.detect{ |log| log.level == 'INFO' }.try!(:message)

            send_to_hipchat(message, color: 'yellow')
          end
        end

        def notify_retrying
          if @definition.hipchat_notify_finished
            message = build_message(level: 'SUCCESS', text: message_builder.retrying_text)
            message << "<br>"
            message << @instance.logs.last(2).first.message

            send_to_hipchat(message, color: 'yellow')
          end
        end

        def notify_skipping
          if @definition.hipchat_notify_finished
            message = build_message(level: 'SUCCESS', text: message_builder.skipping_text)
            message << "<br>"
            message << @instance.logs.last(2).first.message

            send_to_hipchat(message, color: 'yellow')
          end
        end

        def notify_cancellation
          if @definition.notify_cancellation || @definition.hipchat_notify_finished?
            message = build_message(level: 'WARNING', text: message_builder.failure_text)
            message << "<br>"
            message << @instance.logs.reverse.detect{ |log| log.level == 'WARN' }.try!(:message)

            send_to_hipchat(message, color: 'yellow')
          end
        end

        def notify_failure
          message = build_message(level: 'FAILURE', text: message_builder.failure_text)
          message << "<br>"
          message << @instance.logs.last(2).first.message

          send_to_hipchat(message, color: 'red', notify: true)
          send_additional_text_to_hipchat
        end

        def notify_critical
          message = build_message(level: 'CRITICAL', text: message_builder.failure_text)
          message << "<br>"
          message << @instance.logs.last(2).first.message

          send_to_hipchat(message, color: 'red', notify: true)
          send_additional_text_to_hipchat
        end

        def notify_finished
          if @definition.hipchat_notify_finished?
            message = build_message(level: 'SUCCESS', text: message_builder.finished_text)
            send_to_hipchat(message)
          end
        end

        def notify_long_elapsed_time
          message = build_message(level: 'WARNING', text: message_builder.long_elapsed_time_text)
          send_to_hipchat(message, color: 'red')
        end

        private

        def send_to_hipchat(message, color: 'green', notify: false, format: 'html')
          if notify_hipchat?

            hipchat[@definition.hipchat_room].send(USER_NAME, message, color: color, notify: notify, message_format: format)
          end
        end

        def build_message(level: , text:)
          message = "<b>[#{level}]</b> "
          message << text
          message << "(<a href='#{message_builder.job_instance_path}'>Open</a>)"
        end

        def send_additional_text_to_hipchat
          if @definition.hipchat_additional_text.present?
            message = message_builder.additional_text
            send_to_hipchat(message, color: 'red', notify: true, format: 'text')
          end
        end

        def notify_hipchat?
          @definition.hipchat_room.present?
        end
      end
    end
  end
end