Add alert counts by status to graphql

Adds support for a alert_management_alert_status_count query
to GraphQL project. This includes counts for each status of
alert for the query, as well as counts for a categories 'all'
and 'open' which includes both triggered and acknowledged events.

app/finders/alert_management/alerts_finder.rb

@@ -2,6 +2,12 @@
 
 module AlertManagement
   class AlertsFinder
+    # @return [Hash<Integer,Integer>] Mapping of status id to count
+    #          ex) { 0: 6, ...etc }
+    def self.counts_by_status(current_user, project, params = {})
+      new(current_user, project, params).execute.counts_by_status
+    end
+
     def initialize(current_user, project, params)
       @current_user = current_user
       @project = project

app/graphql/resolvers/alert_management/alert_status_counts_resolver.rb

+# frozen_string_literal: true
+
+module Resolvers
+  module AlertManagement
+    class AlertStatusCountsResolver < BaseResolver
+      type Types::AlertManagement::AlertStatusCountsType, null: true
+
+      def resolve(**args)
+        ::Gitlab::AlertManagement::AlertStatusCounts.new(context[:current_user], object, args)
+      end
+    end
+  end
+end

app/graphql/resolvers/alert_management_alert_resolver.rb

@@ -23,9 +23,9 @@ module Resolvers
 
     def resolve(**args)
       parent = object.respond_to?(:sync) ? object.sync : object
-      return AlertManagement::Alert.none if parent.nil?
+      return ::AlertManagement::Alert.none if parent.nil?
 
-      AlertManagement::AlertsFinder.new(context[:current_user], parent, args).execute
+      ::AlertManagement::AlertsFinder.new(context[:current_user], parent, args).execute
     end
   end
 end

app/graphql/types/alert_management/alert_status_counts_type.rb

+# frozen_string_literal: true
+
+# Service for managing alert counts and cache updates.
+module Types
+  module AlertManagement
+    class AlertStatusCountsType < BaseObject
+      graphql_name 'AlertManagementAlertStatusCountsType'
+      description "Represents total number of alerts for the represented categories"
+
+      authorize :read_alert_management_alert
+
+      ::Gitlab::AlertManagement::AlertStatusCounts::STATUSES.each_key do |status|
+        field status,
+              GraphQL::INT_TYPE,
+              null: true,
+              description: "Number of alerts with status #{status.upcase} for the project"
+      end
+
+      field :open,
+            GraphQL::INT_TYPE,
+            null: true,
+            description: 'Number of alerts with status TRIGGERED or ACKNOWLEDGED for the project'
+
+      field :all,
+            GraphQL::INT_TYPE,
+            null: true,
+            description: 'Total number of alerts for the project'
+    end
+  end
+end

app/graphql/types/project_type.rb

@@ -218,6 +218,12 @@ module Types
           description: 'A single Alert Management alert of the project',
           resolver: Resolvers::AlertManagementAlertResolver.single
 
+    field :alert_management_alert_status_counts,
+          Types::AlertManagement::AlertStatusCountsType,
+          null: true,
+          description: 'Counts of alerts by status for the project',
+          resolver: Resolvers::AlertManagement::AlertStatusCountsResolver
+
     field :releases,
           Types::ReleaseType.connection_type,
           null: true,

app/models/alert_management/alert.rb

@@ -106,6 +106,8 @@ module AlertManagement
     scope :order_severity,      -> (sort_order) { order(severity: sort_order) }
     scope :order_status,        -> (sort_order) { order(status: sort_order) }
 
+    scope :counts_by_status, -> { group(:status).count }
+
     def self.sort_by_attribute(method)
       case method.to_s
       when 'start_time_asc'     then order_start_time(:asc)

changelogs/unreleased/sy-status-counts.yml

+---
+title: Add alert counts by status to GraphQL API
+merge_request: 31818
+author:
+type: changed

doc/api/graphql/reference/gitlab_schema.graphql

@@ -348,6 +348,41 @@ enum AlertManagementAlertSort {
   updated_desc
 }
 
+"""
+Represents total number of alerts for the represented categories
+"""
+type AlertManagementAlertStatusCountsType {
+  """
+  Number of alerts with status ACKNOWLEDGED for the project
+  """
+  acknowledged: Int
+
+  """
+  Total number of alerts for the project
+  """
+  all: Int
+
+  """
+  Number of alerts with status IGNORED for the project
+  """
+  ignored: Int
+
+  """
+  Number of alerts with status TRIGGERED or ACKNOWLEDGED for the project
+  """
+  open: Int
+
+  """
+  Number of alerts with status RESOLVED for the project
+  """
+  resolved: Int
+
+  """
+  Number of alerts with status TRIGGERED for the project
+  """
+  triggered: Int
+}
+
 """
 Alert severity values
 """
@@ -7384,6 +7419,11 @@ type Project {
     statuses: [AlertManagementStatus!]
   ): AlertManagementAlert
 
+  """
+  Counts of alerts by status for the project
+  """
+  alertManagementAlertStatusCounts: AlertManagementAlertStatusCountsType
+
   """
   Alert Management alerts of the project
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -855,6 +855,103 @@
           ],
           "possibleTypes": null
         },
+        {
+          "kind": "OBJECT",
+          "name": "AlertManagementAlertStatusCountsType",
+          "description": "Represents total number of alerts for the represented categories",
+          "fields": [
+            {
+              "name": "acknowledged",
+              "description": "Number of alerts with status ACKNOWLEDGED for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "all",
+              "description": "Total number of alerts for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "ignored",
+              "description": "Number of alerts with status IGNORED for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "open",
+              "description": "Number of alerts with status TRIGGERED or ACKNOWLEDGED for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "resolved",
+              "description": "Number of alerts with status RESOLVED for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "triggered",
+              "description": "Number of alerts with status TRIGGERED for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Int",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "ENUM",
           "name": "AlertManagementSeverity",
@@ -22090,6 +22187,20 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "alertManagementAlertStatusCounts",
+              "description": "Counts of alerts by status for the project",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "AlertManagementAlertStatusCountsType",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "alertManagementAlerts",
               "description": "Alert Management alerts of the project",

doc/api/graphql/reference/index.md

@@ -68,6 +68,19 @@ Describes an alert from the project's Alert Management
 | `title` | String | Title of the alert |
 | `updatedAt` | Time | Timestamp the alert was last updated |
 
+## AlertManagementAlertStatusCountsType
+
+Represents total number of alerts for the represented categories
+
+| Name  | Type  | Description |
+| ---   |  ---- | ----------  |
+| `acknowledged` | Int | Number of alerts with status ACKNOWLEDGED for the project |
+| `all` | Int | Total number of alerts for the project |
+| `ignored` | Int | Number of alerts with status IGNORED for the project |
+| `open` | Int | Number of alerts with status TRIGGERED or ACKNOWLEDGED for the project |
+| `resolved` | Int | Number of alerts with status RESOLVED for the project |
+| `triggered` | Int | Number of alerts with status TRIGGERED for the project |
+
 ## AwardEmoji
 
 An emoji awarded by a user.
@@ -1115,6 +1128,7 @@ Information about pagination in a connection.
 | Name  | Type  | Description |
 | ---   |  ---- | ----------  |
 | `alertManagementAlert` | AlertManagementAlert | A single Alert Management alert of the project |
+| `alertManagementAlertStatusCounts` | AlertManagementAlertStatusCountsType | Counts of alerts by status for the project |
 | `archived` | Boolean | Indicates the archived status of the project |
 | `autocloseReferencedIssues` | Boolean | Indicates if issues referenced by merge requests and commits within the default branch are closed automatically |
 | `avatarUrl` | String | URL to avatar image file of the project |

lib/gitlab/alert_management/alert_status_counts.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module AlertManagement
+    # Represents counts of each status or category of statuses
+    class AlertStatusCounts
+      include Gitlab::Utils::StrongMemoize
+
+      STATUSES = ::AlertManagement::Alert::STATUSES
+
+      attr_reader :project
+
+      def self.declarative_policy_class
+        'AlertManagement::AlertPolicy'
+      end
+
+      def initialize(current_user, project, params)
+        @project = project
+        @current_user = current_user
+        @params = params
+      end
+
+      # Define method for each status
+      STATUSES.each_key do |status|
+        define_method(status) { counts[status] }
+      end
+
+      def open
+        counts[:triggered] + counts[:acknowledged]
+      end
+
+      def all
+        counts.values.sum # rubocop:disable CodeReuse/ActiveRecord
+      end
+
+      private
+
+      attr_reader :current_user, :params
+
+      def counts
+        strong_memoize(:counts) do
+          Hash.new(0).merge(counts_by_status)
+        end
+      end
+
+      def counts_by_status
+        ::AlertManagement::AlertsFinder
+          .counts_by_status(current_user, project, params)
+          .transform_keys { |status_id| STATUSES.key(status_id) }
+      end
+    end
+  end
+end

spec/graphql/resolvers/alert_management/alert_status_counts_resolver_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::AlertManagement::AlertStatusCountsResolver do
+  include GraphqlHelpers
+
+  describe '#resolve' do
+    let_it_be(:current_user) { create(:user) }
+    let_it_be(:project) { create(:project) }
+    let(:args) { {} }
+
+    subject { resolve_alert_status_counts(args) }
+
+    it { is_expected.to be_a(Gitlab::AlertManagement::AlertStatusCounts) }
+    specify { expect(subject.project).to eq(project) }
+
+    private
+
+    def resolve_alert_status_counts(args = {}, context = { current_user: current_user })
+      resolve(described_class, obj: project, args: args, ctx: context)
+    end
+  end
+end

spec/graphql/types/alert_management/alert_status_count_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe GitlabSchema.types['AlertManagementAlertStatusCountsType'] do
+  specify { expect(described_class.graphql_name).to eq('AlertManagementAlertStatusCountsType') }
+
+  it 'exposes the expected fields' do
+    expected_fields = %i[
+      all
+      open
+      triggered
+      acknowledged
+      resolved
+      ignored
+    ]
+
+    expect(described_class).to have_graphql_fields(*expected_fields)
+  end
+end

spec/graphql/types/project_type_spec.rb

@@ -25,6 +25,7 @@ describe GitlabSchema.types['Project'] do
       issue pipelines removeSourceBranchAfterMerge sentryDetailedError snippets
       grafanaIntegration autocloseReferencedIssues suggestion_commit_message environments
       boards jira_import_status jira_imports services releases release
+      alert_management_alerts alert_management_alert alert_management_alert_status_counts
     ]
 
     expect(described_class).to include_graphql_fields(*expected_fields)

spec/lib/gitlab/alert_management/alert_status_counts_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::AlertManagement::AlertStatusCounts do
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+  let_it_be(:alert_1) { create(:alert_management_alert, :resolved, project: project) }
+  let_it_be(:alert_2) { create(:alert_management_alert, :ignored, project: project) }
+  let_it_be(:alert_3) { create(:alert_management_alert) }
+  let(:params) { {} }
+
+  describe '#execute' do
+    subject(:counts) { described_class.new(current_user, project, params) }
+
+    context 'for an unauthorized user' do
+      it 'returns zero for all statuses' do
+        expect(counts.open).to eq(0)
+        expect(counts.all).to eq(0)
+
+        AlertManagement::Alert::STATUSES.each_key do |status|
+          expect(counts.send(status)).to eq(0)
+        end
+      end
+    end
+
+    context 'for an authorized user' do
+      before do
+        project.add_developer(current_user)
+      end
+
+      it 'returns the correct counts for each status' do
+        expect(counts.open).to eq(0)
+        expect(counts.all).to eq(2)
+        expect(counts.resolved).to eq(1)
+        expect(counts.ignored).to eq(1)
+        expect(counts.triggered).to eq(0)
+        expect(counts.acknowledged).to eq(0)
+      end
+
+      context 'when filtering params are included' do
+        let(:params) { { status: AlertManagement::Alert::STATUSES[:resolved] } }
+
+        it 'returns the correct counts for each status' do
+          expect(counts.open).to eq(0)
+          expect(counts.all).to eq(1)
+          expect(counts.resolved).to eq(1)
+          expect(counts.ignored).to eq(0)
+          expect(counts.triggered).to eq(0)
+          expect(counts.acknowledged).to eq(0)
+        end
+      end
+    end
+  end
+end

spec/models/alert_management/alert_spec.rb

@@ -125,14 +125,14 @@ describe AlertManagement::Alert do
 
   describe 'scopes' do
     let_it_be(:project) { create(:project) }
-    let_it_be(:alert_1) { create(:alert_management_alert, project: project) }
-    let_it_be(:alert_2) { create(:alert_management_alert, :resolved, project: project) }
-    let_it_be(:alert_3) { create(:alert_management_alert, :ignored, project: project) }
+    let_it_be(:triggered_alert) { create(:alert_management_alert, project: project) }
+    let_it_be(:resolved_alert) { create(:alert_management_alert, :resolved, project: project) }
+    let_it_be(:ignored_alert) { create(:alert_management_alert, :ignored, project: project) }
 
     describe '.for_iid' do
-      subject { AlertManagement::Alert.for_iid(alert_1.iid) }
+      subject { AlertManagement::Alert.for_iid(triggered_alert.iid) }
 
-      it { is_expected.to match_array(alert_1) }
+      it { is_expected.to match_array(triggered_alert) }
     end
 
     describe '.for_status' do
@@ -140,26 +140,36 @@ describe AlertManagement::Alert do
 
       subject { AlertManagement::Alert.for_status(status) }
 
-      it { is_expected.to match_array(alert_2) }
+      it { is_expected.to match_array(resolved_alert) }
 
       context 'with multiple statuses' do
         let(:status) { AlertManagement::Alert::STATUSES.values_at(:resolved, :ignored) }
 
-        it { is_expected.to match_array([alert_2, alert_3]) }
+        it { is_expected.to match_array([resolved_alert, ignored_alert]) }
       end
     end
-  end
 
-  describe '.for_fingerprint' do
-    let_it_be(:fingerprint) { SecureRandom.hex }
-    let_it_be(:project) { create(:project) }
-    let_it_be(:alert_1) { create(:alert_management_alert, project: project, fingerprint: fingerprint) }
-    let_it_be(:alert_2) { create(:alert_management_alert, project: project) }
-    let_it_be(:alert_3) { create(:alert_management_alert, fingerprint: fingerprint) }
+    describe '.for_fingerprint' do
+      let_it_be(:fingerprint) { SecureRandom.hex }
+      let_it_be(:alert_with_fingerprint) { create(:alert_management_alert, project: project, fingerprint: fingerprint) }
+      let_it_be(:unrelated_alert_with_finger_print) { create(:alert_management_alert, fingerprint: fingerprint) }
 
-    subject { described_class.for_fingerprint(project, fingerprint) }
+      subject { described_class.for_fingerprint(project, fingerprint) }
+
+      it { is_expected.to contain_exactly(alert_with_fingerprint) }
+    end
 
-    it { is_expected.to contain_exactly(alert_1) }
+    describe '.counts_by_status' do
+      subject { described_class.counts_by_status }
+
+      it do
+        is_expected.to eq(
+          triggered_alert.status => 1,
+          resolved_alert.status => 1,
+          ignored_alert.status => 1
+        )
+      end
+    end
   end
 
   describe '.search' do

spec/requests/api/graphql/project/alert_management/alert_status_counts_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+describe 'getting Alert Management Alert counts by status' do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:alert_1) { create(:alert_management_alert, :resolved, project: project) }
+  let_it_be(:alert_2) { create(:alert_management_alert, project: project) }
+  let_it_be(:other_project_alert) { create(:alert_management_alert) }
+  let(:params) { {} }
+
+  let(:fields) do
+    <<~QUERY
+      #{all_graphql_fields_for('AlertManagementAlertStatusCountsType'.classify)}
+    QUERY
+  end
+
+  let(:query) do
+    graphql_query_for(
+      'project',
+      { 'fullPath' => project.full_path },
+      query_graphql_field('alertManagementAlertStatusCounts', params, fields)
+    )
+  end
+
+  context 'with alert data' do
+    let(:alert_counts) { graphql_data.dig('project', 'alertManagementAlertStatusCounts') }
+
+    context 'without project permissions' do
+      let(:user) { create(:user) }
+
+      before do
+        post_graphql(query, current_user: current_user)
+      end
+
+      it_behaves_like 'a working graphql query'
+      it { expect(alert_counts).to be nil }
+    end
+
+    context 'with project permissions' do
+      before do
+        project.add_developer(current_user)
+        post_graphql(query, current_user: current_user)
+      end
+
+      it_behaves_like 'a working graphql query'
+      it 'returns the correct counts for each status' do
+        expect(alert_counts).to eq(
+          'open' => 1,
+          'all' => 2,
+          'triggered' => 1,
+          'acknowledged' => 0,
+          'resolved' => 1,
+          'ignored' => 0
+        )
+      end
+    end
+  end
+end