feat: flag overview change requests (#9702)

src/lib/features/feature-search/feature-search-store.ts

@@ -71,6 +71,7 @@ class FeatureSearchStore implements IFeatureSearchStore {
             hasEnabledStrategies: r.has_enabled_strategies,
             yes: Number(r.yes) || 0,
             no: Number(r.no) || 0,
+            changeRequestIds: r.change_request_ids ?? [],
         };
     }
 
@@ -326,6 +327,43 @@ class FeatureSearchStore implements IFeatureSearchStore {
                 'ranked_features.feature_name',
                 'lifecycle.stage_feature',
             );
+        if (this.flagResolver.isEnabled('flagsOverviewSearch')) {
+            finalQuery
+                .leftJoin(
+                    this.db('change_request_events AS cre')
+                        .join(
+                            'change_requests AS cr',
+                            'cre.change_request_id',
+                            'cr.id',
+                        )
+                        .select('cre.feature')
+                        .select(
+                            this.db.raw(
+                                'array_agg(distinct cre.change_request_id) AS change_request_ids',
+                            ),
+                        )
+                        .select('cr.environment')
+                        .groupBy('cre.feature', 'cr.environment')
+                        .whereNotIn('cr.state', [
+                            'Applied',
+                            'Cancelled',
+                            'Rejected',
+                        ])
+                        .as('feature_cr'),
+                    function () {
+                        this.on(
+                            'feature_cr.feature',
+                            '=',
+                            'ranked_features.feature_name',
+                        ).andOn(
+                            'feature_cr.environment',
+                            '=',
+                            'ranked_features.environment',
+                        );
+                    },
+                )
+                .select('feature_cr.change_request_ids');
+        }
         this.queryExtraData(finalQuery);
         const rows = await finalQuery;
         stopTimer();

src/lib/features/feature-search/feature.search.e2e.test.ts

@@ -29,6 +29,7 @@ beforeAll(async () => {
                 flags: {
                     strictSchemaValidation: true,
                     anonymiseEventLog: true,
+                    flagsOverviewSearch: true,
                 },
             },
         },
@@ -1286,3 +1287,98 @@ test('should return tags with color information from tag type', async () => {
         ],
     });
 });
+
+const createChangeRequest = async ({
+    id,
+    feature,
+    environment,
+    state,
+}: { id: number; feature: string; environment: string; state: string }) => {
+    await db
+        .rawDatabase('change_requests')
+        .insert({ id, environment, state, project: 'default', created_by: 1 });
+    await db.rawDatabase('change_request_events').insert({
+        id,
+        feature,
+        action: 'updateEnabled',
+        created_by: 1,
+        change_request_id: id,
+    });
+};
+
+test('should return change request ids per environment', async () => {
+    await app.createFeature('my_feature_a');
+    await app.createFeature('my_feature_b');
+
+    await createChangeRequest({
+        id: 1,
+        feature: 'my_feature_a',
+        environment: 'production',
+        state: 'In review',
+    });
+    await createChangeRequest({
+        id: 2,
+        feature: 'my_feature_a',
+        environment: 'production',
+        state: 'Applied',
+    });
+    await createChangeRequest({
+        id: 3,
+        feature: 'my_feature_a',
+        environment: 'production',
+        state: 'Cancelled',
+    });
+    await createChangeRequest({
+        id: 4,
+        feature: 'my_feature_a',
+        environment: 'production',
+        state: 'Rejected',
+    });
+    await createChangeRequest({
+        id: 5,
+        feature: 'my_feature_a',
+        environment: 'development',
+        state: 'Draft',
+    });
+    await createChangeRequest({
+        id: 6,
+        feature: 'my_feature_a',
+        environment: 'development',
+        state: 'Scheduled',
+    });
+    await createChangeRequest({
+        id: 7,
+        feature: 'my_feature_a',
+        environment: 'development',
+        state: 'Approved',
+    });
+    await createChangeRequest({
+        id: 8,
+        feature: 'my_feature_b',
+        environment: 'development',
+        state: 'Approved',
+    });
+
+    const { body } = await searchFeatures({});
+
+    expect(body).toMatchObject({
+        features: [
+            {
+                name: 'my_feature_a',
+                environments: [
+                    { name: 'default', changeRequestIds: [] },
+                    { name: 'development', changeRequestIds: [5, 6, 7] },
+                    { name: 'production', changeRequestIds: [1] },
+                ],
+            },
+            {
+                name: 'my_feature_b',
+                environments: [
+                    { name: 'default', changeRequestIds: [] },
+                    { name: 'development', changeRequestIds: [8] },
+                    { name: 'production', changeRequestIds: [] },
+                ],
+            },
+        ],
+    });
+});

src/lib/openapi/spec/feature-environment-schema.ts

@@ -63,6 +63,14 @@ export const featureEnvironmentSchema = {
             },
             description: 'A list of variants for the feature environment',
         },
+        changeRequestIds: {
+            type: 'array',
+            items: {
+                type: 'number',
+            },
+            description:
+                'Experimental. A list of change request identifiers for actionable change requests that are not Cancelled, Rejected or Approved.',
+        },
         lastSeenAt: {
             type: 'string',
             format: 'date-time',

src/lib/types/experimental.ts

@@ -66,7 +66,8 @@ export type IFlagKey =
     | 'tagTypeColor'
     | 'globalChangeRequestConfig'
     | 'addEditStrategy'
-    | 'newStrategyDropdown';
+    | 'newStrategyDropdown'
+    | 'flagsOverviewSearch';
 
 export type IFlags = Partial<{ [key in IFlagKey]: boolean | Variant }>;
 
@@ -319,6 +320,10 @@ const flags: IFlags = {
         process.env.UNLEASH_EXPERIMENTAL_NEW_STRATEGY_DROPDOWN,
         false,
     ),
+    flagsOverviewSearch: parseEnvVarBoolean(
+        process.env.UNLEASH_EXPERIMENTAL_FLAGS_OVERVIEW_SEARCH,
+        false,
+    ),
 };
 
 export const defaultExperimentalOptions: IExperimentalOptions = {