fix: ignore metrics for non-existent features (#6945)

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

@@ -22,9 +22,22 @@ export class FeatureLifecycleStore implements IFeatureLifecycleStore {
     async insert(
         featureLifecycleStages: FeatureLifecycleStage[],
     ): Promise<void> {
+        const existingFeatures = await this.db('features')
+            .select('name')
+            .whereIn(
+                'name',
+                featureLifecycleStages.map((stage) => stage.feature),
+            );
+        const existingFeaturesSet = new Set(
+            existingFeatures.map((item) => item.name),
+        );
+        const validStages = featureLifecycleStages.filter((stage) =>
+            existingFeaturesSet.has(stage.feature),
+        );
+
         await this.db('feature_lifecycles')
             .insert(
-                featureLifecycleStages.map((stage) => ({
+                validStages.map((stage) => ({
                     feature: stage.feature,
                     stage: stage.stage,
                 })),

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

@@ -87,7 +87,12 @@ test('should return lifecycle stages', async () => {
     await reachedStage('initial');
     await expectFeatureStage('initial');
     eventBus.emit(CLIENT_METRICS, {
-        bucket: { toggles: { my_feature_a: 'irrelevant' } },
+        bucket: {
+            toggles: {
+                my_feature_a: 'irrelevant',
+                non_existent_feature: 'irrelevent',
+            },
+        },
         environment: 'default',
     });
     // missing feature