Add support for filtering by status

Adds support for an argument "statuses" to the alertManagementAlert
type for the graphql API, which can be used to filter the alerts
for a project to those with the provided array of statuses.

app/finders/alert_management/alerts_finder.rb

@@ -12,6 +12,7 @@ module AlertManagement
       return AlertManagement::Alert.none unless authorized?
 
       collection = project.alert_management_alerts
+      collection = by_status(collection)
       collection = by_iid(collection)
       sort(collection)
     end
@@ -26,6 +27,12 @@ module AlertManagement
       collection.for_iid(params[:iid])
     end
 
+    def by_status(collection)
+      values = AlertManagement::Alert::STATUSES.values & Array(params[:status])
+
+      values.present? ? collection.for_status(values) : collection
+    end
+
     def sort(collection)
       params[:sort] ? collection.sort_by_attribute(params[:sort]) : collection
     end

app/graphql/resolvers/alert_management_alert_resolver.rb

@@ -6,6 +6,11 @@ module Resolvers
               required: false,
               description: 'IID of the alert. For example, "1"'
 
+    argument :statuses, [Types::AlertManagement::StatusEnum],
+              as: :status,
+              required: false,
+              description: 'Alerts with the specified statues. For example, [TRIGGERED]'
+
     argument :sort, Types::AlertManagement::AlertSortEnum,
               description: 'Sort alerts by this criteria',
               required: false

app/models/alert_management/alert.rb

@@ -93,6 +93,7 @@ module AlertManagement
     end
 
     scope :for_iid, -> (iid) { where(iid: iid) }
+    scope :for_status, -> (status) { where(status: status) }
     scope :for_fingerprint, -> (project, fingerprint) { where(project: project, fingerprint: fingerprint) }
 
     scope :order_start_time,    -> (sort_order) { order(started_at: sort_order) }

doc/api/graphql/reference/gitlab_schema.graphql

@@ -6843,6 +6843,11 @@ type Project {
     Sort alerts by this criteria
     """
     sort: AlertManagementAlertSort
+
+    """
+    Alerts with the specified statues. For example, [TRIGGERED]
+    """
+    statuses: [AlertManagementStatus!]
   ): AlertManagementAlert
 
   """
@@ -6878,6 +6883,11 @@ type Project {
     Sort alerts by this criteria
     """
     sort: AlertManagementAlertSort
+
+    """
+    Alerts with the specified statues. For example, [TRIGGERED]
+    """
+    statuses: [AlertManagementStatus!]
   ): AlertManagementAlertConnection
 
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -20499,6 +20499,24 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "statuses",
+                  "description": "Alerts with the specified statues. For example, [TRIGGERED]",
+                  "type": {
+                    "kind": "LIST",
+                    "name": null,
+                    "ofType": {
+                      "kind": "NON_NULL",
+                      "name": null,
+                      "ofType": {
+                        "kind": "ENUM",
+                        "name": "AlertManagementStatus",
+                        "ofType": null
+                      }
+                    }
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "sort",
                   "description": "Sort alerts by this criteria",
@@ -20532,6 +20550,24 @@
                   },
                   "defaultValue": null
                 },
+                {
+                  "name": "statuses",
+                  "description": "Alerts with the specified statues. For example, [TRIGGERED]",
+                  "type": {
+                    "kind": "LIST",
+                    "name": null,
+                    "ofType": {
+                      "kind": "NON_NULL",
+                      "name": null,
+                      "ofType": {
+                        "kind": "ENUM",
+                        "name": "AlertManagementStatus",
+                        "ofType": null
+                      }
+                    }
+                  },
+                  "defaultValue": null
+                },
                 {
                   "name": "sort",
                   "description": "Sort alerts by this criteria",

spec/finders/alert_management/alerts_finder_spec.rb

@@ -37,6 +37,37 @@ describe AlertManagement::AlertsFinder, '#execute' do
       end
     end
 
+    context 'status given' do
+      let(:params) { { status: AlertManagement::Alert::STATUSES[:resolved] } }
+
+      it { is_expected.to match_array(alert_1) }
+
+      context 'with an array of statuses' do
+        let(:alert_3) { create(:alert_management_alert) }
+        let(:params) { { status: [AlertManagement::Alert::STATUSES[:resolved]] } }
+
+        it { is_expected.to match_array(alert_1) }
+      end
+
+      context 'with no alerts of status' do
+        let(:params) { { status: AlertManagement::Alert::STATUSES[:acknowledged] } }
+
+        it { is_expected.to be_empty }
+      end
+
+      context 'with an empty status array' do
+        let(:params) { { status: [] } }
+
+        it { is_expected.to match_array([alert_1, alert_2]) }
+      end
+
+      context 'with an nil status' do
+        let(:params) { { status: nil } }
+
+        it { is_expected.to match_array([alert_1, alert_2]) }
+      end
+    end
+
     describe 'sorting' do
       context 'when sorting by created' do
         context 'sorts alerts ascending' do

spec/graphql/resolvers/alert_management_alert_resolver_spec.rb

@@ -32,6 +32,12 @@ describe Resolvers::AlertManagementAlertResolver do
       it { is_expected.to contain_exactly(alert_1) }
     end
 
+    context 'finding by status' do
+      let(:args) { { status: [Types::AlertManagement::StatusEnum.values['IGNORED'].value] } }
+
+      it { is_expected.to contain_exactly(alert_2) }
+    end
+
     describe 'sorting' do
       # Other sorting examples in spec/finders/alert_management/alerts_finder_spec.rb
       context 'when sorting by events count' do

spec/models/alert_management/alert_spec.rb

@@ -123,14 +123,31 @@ describe AlertManagement::Alert do
     it { is_expected.to define_enum_for(:severity).with_values(severity_values) }
   end
 
-  describe '.for_iid' 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, 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) }
+
+    describe '.for_iid' do
+      subject { AlertManagement::Alert.for_iid(alert_1.iid) }
+
+      it { is_expected.to match_array(alert_1) }
+    end
+
+    describe '.for_status' do
+      let(:status) { AlertManagement::Alert::STATUSES[:resolved] }
 
-    subject { AlertManagement::Alert.for_iid(alert_1.iid) }
+      subject { AlertManagement::Alert.for_status(status) }
 
-    it { is_expected.to match_array(alert_1) }
+      it { is_expected.to match_array(alert_2) }
+
+      context 'with multiple statuses' do
+        let(:status) { AlertManagement::Alert::STATUSES.values_at(:resolved, :ignored) }
+
+        it { is_expected.to match_array([alert_2, alert_3]) }
+      end
+    end
   end
 
   describe '.for_fingerprint' do