feat(engine): add pr closed handling

for now, it deletes the pr. look at added TODO to see the wanted behavior. but for now, this is good
enough

related to #177

Author: thatkookooguy

server/src/abstracts/engine.abstract.ts

@@ -13,7 +13,8 @@ export enum AchievibitEventNames {
   PullRequestReviewCommentRemoved = 'PullRequestReviewCommentRemoved',
   PullRequestReviewCommentEdited = 'PullRequestReviewCommentEdited',
   PullRequestReviewSubmitted = 'PullRequestReviewSubmitted',
-  PullRequestMerged = 'PullRequestMerged'
+  PullRequestMerged = 'PullRequestMerged',
+  PullRequestClosed = 'PullRequestClosed'
 }
 
 export abstract class Engine<IEventPayload> {
@@ -175,4 +176,6 @@ export abstract class Engine<IEventPayload> {
    * @param eventData the event payload
    */
   abstract handlePullRequestMerged(eventData: IEventPayload): Promise<void>;
+
+  abstract handlePullRequestClosed(eventData: IEventPayload): Promise<void>;
 }

server/src/api/webhook-event-manager/webhook-event-manager.service.ts

@@ -91,6 +91,10 @@ export class WebhookEventManagerService {
         this.logger.debug('PullRequestMerged');
         await this.githubEngine.handlePullRequestMerged(eventData);
         return eventName;
+      case AchievibitEventNames.PullRequestClosed:
+        this.logger.debug('PullRequestClosed');
+        await this.githubEngine.handlePullRequestClosed(eventData);
+        return eventName;
     }
   }
 
@@ -179,6 +183,12 @@ export class WebhookEventManagerService {
       return AchievibitEventNames.PullRequestMerged;
     }
 
+    if (isEqual(eventName, 'pull_request') &&
+      isEqual(eventData.action, 'closed') &&
+      !eventData.pull_request.merged) {
+      return AchievibitEventNames.PullRequestClosed;
+    }
+
     return;
   }
 }

server/src/dev-tools/captured-events/pull-request-closed.event.ts

@@ -7,6 +7,7 @@ export * from './dto.mock-generator';
 export * from './in-memory-database.module';
 export * from './captured-events/pull-request-assignee-added.event';
 export * from './captured-events/pull-request-assignee-removed.event';
+export * from './captured-events/pull-request-closed.event';
 export * from './captured-events/pull-request-created-organization.event';
 export * from './captured-events/pull-request-created.event';
 export * from './captured-events/pull-request-edited.event';

server/src/dev-tools/index.ts

@@ -301,6 +301,33 @@ export class GithubEngine extends Engine<IGithubPullRequestEvent> {
     throw new Error('Method not implemented.');
   }
 
+  async handlePullRequestClosed(
+    eventData: IGithubPullRequestEvent
+  ): Promise<void> {
+    const {
+      githubCreator,
+      githubOwner,
+      githubPR
+    } = this.extractGithubEntities(eventData);
+    const pr = this.extractPullRequest(
+      githubPR,
+      this.extractUser(githubCreator),
+      this.extractRepo(eventData.repository),
+      this.extractUser(githubOwner)
+    );
+
+    /**
+     * TODO@Thatkookooguy: #340 Combine PR deletion to a single task
+     * This should later just flag the PR as closed\merged and should
+     * be dealt with in the task that runs at the start of the week.
+     * This way, we can just make the task also delete closed or merged prs
+     * but give achievements for some actions we want to allow before deleting
+     * all the data. Something like commiting to a branch with a closed pr
+     * or re-opening a pr.
+    */
+    await this.pullRequestsService.deleteAsync({ prid: pr.prid });
+  }
+
   private extractGithubEntities(eventData: IGithubPullRequestEvent) {
     return {
       githubPR: eventData.pull_request,

server/src/engines/github.engine.ts

@@ -114,6 +114,35 @@ Array [
 ]
 `;
 
+exports[`AppController (e2e) pr events / (POST) github pull request closed 1`] = `"PullRequestClosed"`;
+
+exports[`AppController (e2e) pr events / (POST) github pull request closed 2`] = `
+Array [
+  Object {
+    "achievements": Array [],
+    "avatar": "https://avatars3.githubusercontent.com/u/10427304?v=4",
+    "organization": false,
+    "organizations": Array [],
+    "repos": Array [],
+    "url": "https://github.com/Thatkookooguy",
+    "username": "Thatkookooguy",
+    "users": Array [],
+  },
+]
+`;
+
+exports[`AppController (e2e) pr events / (POST) github pull request closed 3`] = `
+Array [
+  Object {
+    "fullname": "Thatkookooguy/test-new-achievibit-events",
+    "name": "test-new-achievibit-events",
+    "url": "https://github.com/Thatkookooguy/test-new-achievibit-events",
+  },
+]
+`;
+
+exports[`AppController (e2e) pr events / (POST) github pull request closed 4`] = `Array []`;
+
 exports[`AppController (e2e) pr events / (POST) github pull request created event should create user 1`] = `"PullRequestOpened"`;
 
 exports[`AppController (e2e) pr events / (POST) github pull request created event should create user 2`] = `

server/test/__snapshots__/github-events.e2e-spec.ts.snap

@@ -9,6 +9,7 @@ import { ConfigService } from '@kb-config';
 import {
   pullRequestAssigneeAddedEvent,
   pullRequestAssigneeRemovedEvent,
+  pullRequestClosedEvent,
   pullRequestCreatedEvent,
   pullRequestEditedEvent,
   pullRequestLabelAddedEvent,
@@ -372,8 +373,26 @@ describe('AppController (e2e)', () => {
         await confirmPrDataCreated();
       });
 
-      test.todo('review comment added');
-      test.todo('review comment removed');
+      test('/ (POST) github pull request closed', async () => {
+        const server = app.getHttpServer();
+        await request(server)
+          .post('/api/webhook-event-manager')
+          .set('Accept', 'application/json')
+          .set('x-github-event', pullRequestCreatedEvent.event)
+          .send(pullRequestCreatedEvent.payload)
+          .expect(201);
+        const sendWebhookResponse = await request(server)
+          .post('/api/webhook-event-manager')
+          .set('Accept', 'application/json')
+          .set('x-github-event',
+            pullRequestClosedEvent.event)
+          .send(pullRequestClosedEvent.payload)
+          .expect(201);
+    
+        expect(sendWebhookResponse.text).toMatchSnapshot();
+    
+        await confirmPrDataCreated();
+      });
 
     async function confirmPrDataCreated() {
       const server = app.getHttpServer();