fix: update potentially-stale status dynamically (#4905)

Fixes 2 bugs:

- project-health-service keeping the feature types as an instance
variable and only updating it once was preventing real calculation to
happen if the lifetime value changed for a feature toggle type
- the ui was reading from a predefined map for the lifetime values so
they would never reflect the BE change

Closes #
[SR-66](https://linear.app/unleash/issue/SR-66/slack-question-around-potentially-stale-and-its-uses)

<img width="1680" alt="Screenshot 2023-10-02 at 14 37 17"
src="https://github.com/Unleash/unleash/assets/104830839/7bee8d4a-9054-4214-a1a2-11ad8169c3d5">
<img width="1660" alt="Screenshot 2023-10-02 at 14 37 06"
src="https://github.com/Unleash/unleash/assets/104830839/23bf55c7-a380-4423-a732-205ad81d5c3c">

---------

Signed-off-by: andreas-unleash <andreas@getunleash.ai>

frontend/src/component/project/Project/ProjectHealth/ReportTable/ReportExpiredCell/formatExpiredAt.ts

@@ -1,23 +1,32 @@
 import { IFeatureToggleListItem } from 'interfaces/featureToggle';
-import { PERMISSION, KILLSWITCH } from 'constants/featureToggleTypes';
-import { getDiffInDays, expired, toggleExpiryByTypeMap } from '../utils';
-import { subDays, parseISO } from 'date-fns';
+import { KILLSWITCH, PERMISSION } from 'constants/featureToggleTypes';
+import { expired, getDiffInDays } from '../utils';
+import { parseISO, subDays } from 'date-fns';
+import { FeatureTypeSchema } from 'openapi';
 
 export const formatExpiredAt = (
     feature: IFeatureToggleListItem,
+    featureTypes: FeatureTypeSchema[],
 ): string | undefined => {
     const { type, createdAt } = feature;
 
-    if (type === KILLSWITCH || type === PERMISSION) {
+    const featureType = featureTypes.find(
+        (featureType) => featureType.name === type,
+    );
+
+    if (
+        featureType &&
+        (featureType.name === KILLSWITCH || featureType.name === PERMISSION)
+    ) {
         return;
     }
 
     const date = parseISO(createdAt);
     const now = new Date();
     const diff = getDiffInDays(date, now);
 
-    if (expired(diff, type)) {
-        const result = diff - toggleExpiryByTypeMap[type];
+    if (featureType && expired(diff, featureType)) {
+        const result = diff - (featureType?.lifetimeDays?.valueOf() || 0);
         return subDays(now, result).toISOString();
     }
 

frontend/src/component/project/Project/ProjectHealth/ReportTable/ReportStatusCell/formatStatus.ts

@@ -1,19 +1,30 @@
 import { IFeatureToggleListItem } from 'interfaces/featureToggle';
-import { getDiffInDays, expired } from '../utils';
-import { PERMISSION, KILLSWITCH } from 'constants/featureToggleTypes';
+import { expired, getDiffInDays } from '../utils';
+import { KILLSWITCH, PERMISSION } from 'constants/featureToggleTypes';
 import { parseISO } from 'date-fns';
+import { FeatureTypeSchema } from 'openapi';
 
 export type ReportingStatus = 'potentially-stale' | 'healthy';
 
 export const formatStatus = (
     feature: IFeatureToggleListItem,
+    featureTypes: FeatureTypeSchema[],
 ): ReportingStatus => {
     const { type, createdAt } = feature;
+
+    const featureType = featureTypes.find(
+        (featureType) => featureType.name === type,
+    );
     const date = parseISO(createdAt);
     const now = new Date();
     const diff = getDiffInDays(date, now);
 
-    if (expired(diff, type) && type !== KILLSWITCH && type !== PERMISSION) {
+    if (
+        featureType &&
+        expired(diff, featureType) &&
+        type !== KILLSWITCH &&
+        type !== PERMISSION
+    ) {
         return 'potentially-stale';
     }
 

frontend/src/component/project/Project/ProjectHealth/ReportTable/ReportTable.tsx

@@ -9,10 +9,10 @@ import { SearchHighlightProvider } from 'component/common/Table/SearchHighlightC
 import { PageHeader } from 'component/common/PageHeader/PageHeader';
 import { sortTypes } from 'utils/sortTypes';
 import {
-    useSortBy,
+    useFlexLayout,
     useGlobalFilter,
+    useSortBy,
     useTable,
-    useFlexLayout,
 } from 'react-table';
 import { useMediaQuery, useTheme } from '@mui/material';
 import { FeatureSeenCell } from 'component/common/Table/cells/FeatureSeenCell/FeatureSeenCell';
@@ -29,6 +29,7 @@ import { formatExpiredAt } from './ReportExpiredCell/formatExpiredAt';
 import { useConditionallyHiddenColumns } from 'hooks/useConditionallyHiddenColumns';
 import useUiConfig from 'hooks/api/getters/useUiConfig/useUiConfig';
 import { FeatureEnvironmentSeenCell } from 'component/common/Table/cells/FeatureSeenCell/FeatureEnvironmentSeenCell';
+import useFeatureTypes from 'hooks/api/getters/useFeatureTypes/useFeatureTypes';
 
 interface IReportTableProps {
     projectId: string;
@@ -56,6 +57,7 @@ export const ReportTable = ({ projectId, features }: IReportTableProps) => {
     const showEnvironmentLastSeen = Boolean(
         uiConfig.flags.lastSeenByEnvironment,
     );
+    const { featureTypes } = useFeatureTypes();
 
     const data: IReportTableRow[] = useMemo<IReportTableRow[]>(
         () =>
@@ -65,10 +67,10 @@ export const ReportTable = ({ projectId, features }: IReportTableProps) => {
                 type: report.type,
                 stale: report.stale,
                 environments: report.environments,
-                status: formatStatus(report),
+                status: formatStatus(report, featureTypes),
                 lastSeenAt: report.lastSeenAt,
                 createdAt: report.createdAt,
-                expiredAt: formatExpiredAt(report),
+                expiredAt: formatExpiredAt(report, featureTypes),
             })),
         [projectId, features],
     );

frontend/src/component/project/Project/ProjectHealth/ReportTable/utils.ts

@@ -1,19 +1,12 @@
 import differenceInDays from 'date-fns/differenceInDays';
-import { EXPERIMENT, OPERATIONAL, RELEASE } from 'constants/featureToggleTypes';
-
-const FORTY_DAYS = 40;
-const SEVEN_DAYS = 7;
-
-export const toggleExpiryByTypeMap: Record<string, number> = {
-    [EXPERIMENT]: FORTY_DAYS,
-    [RELEASE]: FORTY_DAYS,
-    [OPERATIONAL]: SEVEN_DAYS,
-};
+import { FeatureTypeSchema } from 'openapi';
 
 export const getDiffInDays = (date: Date, now: Date) => {
     return Math.abs(differenceInDays(date, now));
 };
 
-export const expired = (diff: number, type: string) => {
-    return diff >= toggleExpiryByTypeMap[type];
+export const expired = (diff: number, type: FeatureTypeSchema) => {
+    if (type.lifetimeDays) return diff >= type?.lifetimeDays?.valueOf();
+
+    return false;
 };

frontend/src/hooks/api/getters/useFeatureTypes/useFeatureTypes.ts

@@ -1,8 +1,8 @@
 import useSWR, { mutate, SWRConfiguration } from 'swr';
-import { useState, useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import { formatApiPath } from 'utils/formatPath';
-import { IFeatureType } from 'interfaces/featureTypes';
 import handleErrorResponses from '../httpErrorResponseHandler';
+import { FeatureTypeSchema } from '../../../../openapi';
 
 const useFeatureTypes = (options: SWRConfiguration = {}) => {
     const fetcher = async () => {
@@ -27,7 +27,7 @@ const useFeatureTypes = (options: SWRConfiguration = {}) => {
     }, [data, error]);
 
     return {
-        featureTypes: (data?.types as IFeatureType[]) || [],
+        featureTypes: (data?.types as FeatureTypeSchema[]) || [],
         error,
         loading,
         refetch,

src/lib/services/project-health-service.ts

@@ -3,15 +3,12 @@ import { IUnleashConfig } from '../types/option';
 import { Logger } from '../logger';
 import type { IProject, IProjectHealthReport } from '../types/model';
 import type { IFeatureToggleStore } from '../types/stores/feature-toggle-store';
-import type {
-    IFeatureType,
-    IFeatureTypeStore,
-} from '../types/stores/feature-type-store';
+import type { IFeatureTypeStore } from '../types/stores/feature-type-store';
 import type { IProjectStore } from '../types/stores/project-store';
 import ProjectService from './project-service';
 import {
-    calculateProjectHealth,
     calculateHealthRating,
+    calculateProjectHealth,
 } from '../domain/project-health/project-health';
 
 export default class ProjectHealthService {
@@ -23,8 +20,6 @@ export default class ProjectHealthService {
 
     private featureToggleStore: IFeatureToggleStore;
 
-    private featureTypes: IFeatureType[];
-
     private projectService: ProjectService;
 
     constructor(
@@ -43,17 +38,14 @@ export default class ProjectHealthService {
         this.projectStore = projectStore;
         this.featureTypeStore = featureTypeStore;
         this.featureToggleStore = featureToggleStore;
-        this.featureTypes = [];
 
         this.projectService = projectService;
     }
 
     async getProjectHealthReport(
         projectId: string,
     ): Promise<IProjectHealthReport> {
-        if (this.featureTypes.length === 0) {
-            this.featureTypes = await this.featureTypeStore.getAll();
-        }
+        const featureTypes = await this.featureTypeStore.getAll();
 
         const overview = await this.projectService.getProjectOverview(
             projectId,
@@ -63,7 +55,7 @@ export default class ProjectHealthService {
 
         const healthRating = calculateProjectHealth(
             overview.features,
-            this.featureTypes,
+            featureTypes,
         );
 
         return {
@@ -73,16 +65,14 @@ export default class ProjectHealthService {
     }
 
     async calculateHealthRating(project: IProject): Promise<number> {
-        if (this.featureTypes.length === 0) {
-            this.featureTypes = await this.featureTypeStore.getAll();
-        }
+        const featureTypes = await this.featureTypeStore.getAll();
 
         const toggles = await this.featureToggleStore.getAll({
             project: project.id,
             archived: false,
         });
 
-        return calculateHealthRating(toggles, this.featureTypes);
+        return calculateHealthRating(toggles, featureTypes);
     }
 
     async setHealthRating(): Promise<void> {