module Travis::Api::App::Responders
# This XML responder is used if the resource is a Repository, or a collection
# of Repositories.
# It returns XML data conforming to Multiple Project Summary Reporting Standard,
# as explained in http://confluence.public.thoughtworks.org/display/CI/Multiple+Project+Summary+Reporting+Standard
  class Xml < Base
    TEMPLATE_ERB = ERB.new <<-EOF
<Projects>
<% @resource.each do |r| %>
  <Project
    name="<%= r.slug %>"
    activity="<%= ACTIVITY[r.last_build.state.to_sym] || ACTIVITY[:default] %>"
    lastBuildStatus="<%= STATUS[r.last_build.state.to_sym] || STATUS[:default]  %>"
    lastBuildLabel="<%= r.last_build.try(:number) %>"
    lastBuildTime="<%= r.last_build.finished_at.try(:strftime, '%Y-%m-%dT%H:%M:%S.%L%z') %>"
    webUrl="<%= File.join("https://", Travis.config.client_domain, r.slug) %>" />
<% end %>
</Projects>
    EOF

    STATUS = {
      default: 'Unknown',
      passed:  'Success',
      failed:  'Failure',
      errored: 'Error',
      canceld: 'Canceled',
    }

    ACTIVITY = {
      default: 'Sleeping',
      started: 'Building'
    }

    def apply?
      super && (single_repo?(resource) || repo_collection?(resource))
    end

    def apply
      super

      @resource = resource.is_a?(Repository) ? [resource] : resource
      TEMPLATE_ERB.result(binding)
    end

    private

      def content_type
        'application/xml;charset=utf-8'
      end

      def single_repo?(resource)
        resource.is_a?(Repository) && resource.last_build
      end

      def repo_collection?(resource)
        resource.is_a?(ActiveRecord::Relation) && resource.first.is_a?(Repository)
      end
  end
end