feat: read change requests for insights (#6651)

src/lib/features/project-insights/createProjectInsightsService.ts

@@ -12,6 +12,8 @@ import FeatureTypeStore from '../../db/feature-type-store';
 import FakeFeatureTypeStore from '../../../test/fixtures/fake-feature-type-store';
 import { ProjectInsightsService } from './project-insights-service';
 import ProjectStore from '../project/project-store';
+import { ProjectInsightsReadModel } from './project-insights-read-model';
+import { FakeProjectInsightsReadModel } from './fake-project-insights-read-model';
 
 export const createProjectInsightsService = (
     db: Db,
@@ -34,6 +36,7 @@ export const createProjectInsightsService = (
     const featureTypeStore = new FeatureTypeStore(db, getLogger);
     const projectStatsStore = new ProjectStatsStore(db, eventBus, getLogger);
     const featureToggleService = createFeatureToggleService(db, config);
+    const projectInsightsReadModel = new ProjectInsightsReadModel(db);
 
     return new ProjectInsightsService(
         {
@@ -43,6 +46,7 @@ export const createProjectInsightsService = (
             projectStatsStore,
         },
         featureToggleService,
+        projectInsightsReadModel,
     );
 };
 
@@ -54,6 +58,7 @@ export const createFakeProjectInsightsService = (
     const featureTypeStore = new FakeFeatureTypeStore();
     const projectStatsStore = new FakeProjectStatsStore();
     const featureToggleService = createFakeFeatureToggleService(config);
+    const projectInsightsReadModel = new FakeProjectInsightsReadModel();
 
     return new ProjectInsightsService(
         {
@@ -63,5 +68,6 @@ export const createFakeProjectInsightsService = (
             projectStatsStore,
         },
         featureToggleService,
+        projectInsightsReadModel,
     );
 };

src/lib/features/project-insights/fake-project-insights-read-model.ts

@@ -0,0 +1,19 @@
+import type {
+    ChangeRequestCounts,
+    IProjectInsightsReadModel,
+} from './project-insights-read-model-type';
+
+const changeRequestCounts: ChangeRequestCounts = {
+    total: 0,
+    approved: 0,
+    applied: 0,
+    rejected: 0,
+    reviewRequired: 10,
+    scheduled: 0,
+};
+
+export class FakeProjectInsightsReadModel implements IProjectInsightsReadModel {
+    async getChangeRequests(projectId: string): Promise<ChangeRequestCounts> {
+        return changeRequestCounts;
+    }
+}

src/lib/features/project-insights/project-insights-read-model-type.ts

@@ -0,0 +1,12 @@
+export type ChangeRequestCounts = {
+    total: number;
+    approved: number;
+    applied: number;
+    rejected: number;
+    reviewRequired: number;
+    scheduled: number;
+};
+
+export interface IProjectInsightsReadModel {
+    getChangeRequests(projectId: string): Promise<ChangeRequestCounts>;
+}

src/lib/features/project-insights/project-insights-read-model.ts

@@ -0,0 +1,59 @@
+import type {
+    ChangeRequestCounts,
+    IProjectInsightsReadModel,
+} from './project-insights-read-model-type';
+import type { Db } from '../../db/db';
+
+export type ChangeRequestDBState =
+    | 'Approved'
+    | 'In review'
+    | 'Applied'
+    | 'Scheduled'
+    | 'Rejected';
+
+export class ProjectInsightsReadModel implements IProjectInsightsReadModel {
+    private db: Db;
+
+    constructor(db: Db) {
+        this.db = db;
+    }
+
+    async getChangeRequests(projectId: string): Promise<ChangeRequestCounts> {
+        const changeRequestCounts: ChangeRequestCounts = {
+            total: 0,
+            approved: 0,
+            applied: 0,
+            rejected: 0,
+            reviewRequired: 0,
+            scheduled: 0,
+        };
+
+        const rows: Array<{ state: ChangeRequestDBState; count: string }> =
+            await this.db('change_requests')
+                .select('state')
+                .count('* as count')
+                .where('project', '=', projectId)
+                .groupBy('state');
+
+        return rows.reduce((acc, current) => {
+            if (current.state === 'Applied') {
+                acc.applied = Number(current.count);
+                acc.total += Number(current.count);
+            } else if (current.state === 'Approved') {
+                acc.approved = Number(current.count);
+                acc.total += Number(current.count);
+            } else if (current.state === 'Rejected') {
+                acc.rejected = Number(current.count);
+                acc.total += Number(current.count);
+            } else if (current.state === 'In review') {
+                acc.reviewRequired = Number(current.count);
+                acc.total += Number(current.count);
+            } else if (current.state === 'Scheduled') {
+                acc.scheduled = Number(current.count);
+                acc.total += Number(current.count);
+            }
+
+            return acc;
+        }, changeRequestCounts);
+    }
+}

src/lib/features/project-insights/project-insights-service.ts

@@ -10,6 +10,7 @@ import { calculateAverageTimeToProd } from '../feature-toggle/time-to-production
 import type { IProjectStatsStore } from '../../types/stores/project-stats-store-type';
 import type { ProjectDoraMetricsSchema } from '../../openapi';
 import { calculateProjectHealth } from '../../domain/project-health/project-health';
+import type { IProjectInsightsReadModel } from './project-insights-read-model-type';
 
 export class ProjectInsightsService {
     private projectStore: IProjectStore;
@@ -22,6 +23,8 @@ export class ProjectInsightsService {
 
     private projectStatsStore: IProjectStatsStore;
 
+    private projectInsightsReadModel: IProjectInsightsReadModel;
+
     constructor(
         {
             projectStore,
@@ -36,12 +39,14 @@ export class ProjectInsightsService {
             | 'featureTypeStore'
         >,
         featureToggleService: FeatureToggleService,
+        projectInsightsReadModel: IProjectInsightsReadModel,
     ) {
         this.projectStore = projectStore;
         this.featureToggleStore = featureToggleStore;
         this.featureTypeStore = featureTypeStore;
         this.featureToggleService = featureToggleService;
         this.projectStatsStore = projectStatsStore;
+        this.projectInsightsReadModel = projectInsightsReadModel;
     }
 
     private async getDoraMetrics(
@@ -103,17 +108,10 @@ export class ProjectInsightsService {
                 inactive: 3,
                 totalPreviousMonth: 15,
             },
-            changeRequests: {
-                total: 24,
-                approved: 5,
-                applied: 2,
-                rejected: 4,
-                reviewRequired: 10,
-                scheduled: 3,
-            },
         };
 
-        const [stats, featureTypeCounts, health, leadTime] = await Promise.all([
+        const [stats, featureTypeCounts, health, leadTime, changeRequests] =
+            await Promise.all([
                 this.projectStatsStore.getProjectStats(projectId),
                 this.featureToggleService.getFeatureTypeCounts({
                     projectId,
@@ -121,9 +119,17 @@ export class ProjectInsightsService {
                 }),
                 this.getHealthInsights(projectId),
                 this.getDoraMetrics(projectId),
+                this.projectInsightsReadModel.getChangeRequests(projectId),
             ]);
 
-        return { ...result, stats, featureTypeCounts, health, leadTime };
+        return {
+            ...result,
+            stats,
+            featureTypeCounts,
+            health,
+            leadTime,
+            changeRequests,
+        };
     }
 
     private async getProjectHealth(

src/lib/features/project-insights/projects-insights.e2e.test.ts

@@ -34,6 +34,8 @@ test('project insights happy path', async () => {
         .expect('Content-Type', /json/)
         .expect(200);
 
+    console.log(body);
+
     expect(body).toMatchObject({
         stats: {
             avgTimeToProdCurrentWindow: 0,
@@ -53,5 +55,13 @@ test('project insights happy path', async () => {
             staleCount: 0,
             rating: 100,
         },
+        changeRequests: {
+            total: 0,
+            approved: 0,
+            applied: 0,
+            rejected: 0,
+            reviewRequired: 0,
+            scheduled: 0,
+        },
     });
 });

src/lib/features/project/project-service.ts

@@ -76,7 +76,6 @@ import type {
     IProjectEnterpriseSettingsUpdate,
     IProjectQuery,
 } from './project-store-type';
-import { calculateProjectHealth } from '../../domain/project-health/project-health';
 
 const getCreatedBy = (user: IUser) => user.email || user.username || 'unknown';
 
@@ -1240,62 +1239,6 @@ export default class ProjectService {
         };
     }
 
-    private async getHealthInsights(projectId: string) {
-        const [overview, featureTypes] = await Promise.all([
-            this.getProjectHealth(projectId, false, undefined),
-            this.featureTypeStore.getAll(),
-        ]);
-
-        const { activeCount, potentiallyStaleCount, staleCount } =
-            calculateProjectHealth(overview.features, featureTypes);
-
-        return {
-            activeCount,
-            potentiallyStaleCount,
-            staleCount,
-            rating: overview.health,
-        };
-    }
-
-    async getProjectInsights(projectId: string) {
-        const result = {
-            leadTime: {
-                projectAverage: 17.1,
-                features: [
-                    { name: 'feature1', timeToProduction: 120 },
-                    { name: 'feature2', timeToProduction: 0 },
-                    { name: 'feature3', timeToProduction: 33 },
-                    { name: 'feature4', timeToProduction: 131 },
-                    { name: 'feature5', timeToProduction: 2 },
-                ],
-            },
-            members: {
-                active: 20,
-                inactive: 3,
-                totalPreviousMonth: 15,
-            },
-            changeRequests: {
-                total: 24,
-                approved: 5,
-                applied: 2,
-                rejected: 4,
-                reviewRequired: 10,
-                scheduled: 3,
-            },
-        };
-
-        const [stats, featureTypeCounts, health] = await Promise.all([
-            this.projectStatsStore.getProjectStats(projectId),
-            this.featureToggleService.getFeatureTypeCounts({
-                projectId,
-                archived: false,
-            }),
-            this.getHealthInsights(projectId),
-        ]);
-
-        return { ...result, stats, featureTypeCounts, health };
-    }
-
     async getProjectHealth(
         projectId: string,
         archived: boolean = false,