Add latest changes from gitlab-org/gitlab@master

1 files changed, 110 insertions, 0 deletions

diff --git a/app/presenters/projects/prometheus/alert_presenter.rb b/app/presenters/projects/prometheus/alert_presenter.rb
new file mode 100644
index 00000000000..8988c567c5c
--- /dev/null
+++ b/app/presenters/projects/prometheus/alert_presenter.rb
@@ -0,0 +1,110 @@
+# frozen_string_literal: true
+
+module Projects
+  module Prometheus
+    class AlertPresenter < Gitlab::View::Presenter::Delegated
+      RESERVED_ANNOTATIONS = %w(gitlab_incident_markdown title).freeze
+      GENERIC_ALERT_SUMMARY_ANNOTATIONS = %w(monitoring_tool service hosts).freeze
+      MARKDOWN_LINE_BREAK = "  \n".freeze
+
+      def full_title
+        [environment_name, alert_title].compact.join(': ')
+      end
+
+      def project_full_path
+        project.full_path
+      end
+
+      def metric_query
+        gitlab_alert&.full_query
+      end
+
+      def environment_name
+        environment&.name
+      end
+
+      def performance_dashboard_link
+        if environment
+          metrics_project_environment_url(project, environment)
+        else
+          metrics_project_environments_url(project)
+        end
+      end
+
+      def starts_at
+        super&.rfc3339
+      end
+
+      def issue_summary_markdown
+        <<~MARKDOWN.chomp
+          #### Summary
+
+          #{metadata_list}
+          #{alert_details}
+        MARKDOWN
+      end
+
+      private
+
+      def alert_title
+        query_title || title
+      end
+
+      def query_title
+        return unless gitlab_alert
+
+        "#{gitlab_alert.title} #{gitlab_alert.computed_operator} #{gitlab_alert.threshold} for 5 minutes"
+      end
+
+      def metadata_list
+        metadata = []
+
+        metadata << list_item('Start time', starts_at) if starts_at
+        metadata << list_item('full_query', backtick(full_query)) if full_query
+        metadata << list_item(service.label.humanize, service.value) if service
+        metadata << list_item(monitoring_tool.label.humanize, monitoring_tool.value) if monitoring_tool
+        metadata << list_item(hosts.label.humanize, host_links) if hosts
+
+        metadata.join(MARKDOWN_LINE_BREAK)
+      end
+
+      def alert_details
+        if annotation_list.present?
+          <<~MARKDOWN.chomp
+
+            #### Alert Details
+
+            #{annotation_list}
+          MARKDOWN
+        end
+      end
+
+      def annotation_list
+        strong_memoize(:annotation_list) do
+          annotations
+            .reject { |annotation| annotation.label.in?(RESERVED_ANNOTATIONS | GENERIC_ALERT_SUMMARY_ANNOTATIONS) }
+            .map { |annotation| list_item(annotation.label, annotation.value) }
+            .join(MARKDOWN_LINE_BREAK)
+        end
+      end
+
+      def list_item(key, value)
+        "**#{key}:** #{value}".strip
+      end
+
+      def backtick(value)
+        "`#{value}`"
+      end
+
+      GENERIC_ALERT_SUMMARY_ANNOTATIONS.each do |annotation_name|
+        define_method(annotation_name) do
+          annotations.find { |a| a.label == annotation_name }
+        end
+      end
+
+      def host_links
+        Array(hosts.value).join(' ')
+      end
+    end
+  end
+end