feat(Discussion): Anonymize responses

src/assets/wise5/common/ComponentContent.ts

@@ -4,6 +4,7 @@ import { DynamicPrompt } from '../directives/dynamic-prompt/DynamicPrompt';
 
 export interface ComponentContent {
   id: string;
+  anonymizeResponses?: boolean;
   connectedComponents?: any[];
   constraints?: any[];
   cRaterRubric?: CRaterRubric;

src/assets/wise5/components/discussion/Anonymizer.spec.ts

@@ -0,0 +1,55 @@
+import { Anonymizer } from './Anonymizer';
+
+describe('Anonymizer', () => {
+  it('should assign a valid anonymous name based on the index of the provided id', () => {
+    const ids = [100, 200, 300];
+
+    const anonymizer100 = new Anonymizer(100, ids);
+    // Since 100 is at index 0, it should be mapped to the first animal (Tiger)
+    expect(anonymizer100.getName()).toEqual('Anonymous Tiger');
+
+    const anonymizer200 = new Anonymizer(200, ids);
+    // 200 is at index 1 -> Lion
+    expect(anonymizer200.getName()).toEqual('Anonymous Lion');
+
+    const anonymizer300 = new Anonymizer(300, ids);
+    // 300 is at index 2 -> Fox
+    expect(anonymizer300.getName()).toEqual('Anonymous Fox');
+  });
+
+  it('should append numeric suffixes when the number of ids exceeds the available name options (86)', () => {
+    // There are 86 predefined internal names, so we create 87 ids to trigger the suffix logic.
+    const manyIds = Array.from({ length: 87 }, (_, i) => i);
+
+    // The very first user (index 0) will now be "Tiger 1" instead of "Tiger"
+    const firstAnonymizer = new Anonymizer(0, manyIds);
+    expect(firstAnonymizer.getName()).toEqual('Anonymous Tiger 1');
+
+    // The 86th user (index 85, the last of the first batch) will be "Yeti 1"
+    const endOfFirstBatch = new Anonymizer(85, manyIds);
+    expect(endOfFirstBatch.getName()).toEqual('Anonymous Yeti 1');
+
+    // The 87th user (index 86) overflows into the second batch and becomes "Tiger 2"
+    const overflowAnonymizer = new Anonymizer(86, manyIds);
+    expect(overflowAnonymizer.getName()).toEqual('Anonymous Tiger 2');
+  });
+
+  it('should append higher numeric suffixes dynamically if ids continue to increase vastly', () => {
+    // Let's create an array of 200 ids (which will overflow into the 3rd batch since 86 * 2 = 172)
+    const massiveIds = Array.from({ length: 200 }, (_, i) => i);
+
+    // Index 171 is the end of the second batch (Yeti 2)
+    const endOfSecondBatch = new Anonymizer(171, massiveIds);
+    expect(endOfSecondBatch.getName()).toEqual('Anonymous Yeti 2');
+
+    // Index 172 starts the third batch (Tiger 3)
+    const startOfThirdBatch = new Anonymizer(172, massiveIds);
+    expect(startOfThirdBatch.getName()).toEqual('Anonymous Tiger 3');
+  });
+
+  it('should support a custom prefix name', () => {
+    const ids = [10, 20];
+    const anonymizer = new Anonymizer(10, ids);
+    expect(anonymizer.getName('Participant')).toEqual('Participant Tiger');
+  });
+});

src/assets/wise5/components/discussion/Anonymizer.ts

@@ -0,0 +1,113 @@
+/**
+ * Generates an anonymous student name using a list of predefined names.
+ * Maps a specific ID against a list of IDs to consistently assign a name based on its index.
+ * If the number of IDs exceeds the available names, numeric suffixes are appended (e.g., "Student Tiger 1", "Student Tiger 2").
+ */
+export class Anonymizer {
+  private nameOptions = [
+    $localize`Tiger`,
+    $localize`Lion`,
+    $localize`Fox`,
+    $localize`Owl`,
+    $localize`Panda`,
+    $localize`Hawk`,
+    $localize`Mole`,
+    $localize`Falcon`,
+    $localize`Orca`,
+    $localize`Eagle`,
+    $localize`Manta`,
+    $localize`Otter`,
+    $localize`Cat`,
+    $localize`Zebra`,
+    $localize`Flea`,
+    $localize`Wolf`,
+    $localize`Dragon`,
+    $localize`Seal`,
+    $localize`Cobra`,
+    $localize`Bug`,
+    $localize`Gecko`,
+    $localize`Fish`,
+    $localize`Koala`,
+    $localize`Mouse`,
+    $localize`Wombat`,
+    $localize`Shark`,
+    $localize`Whale`,
+    $localize`Sloth`,
+    $localize`Slug`,
+    $localize`Ant`,
+    $localize`Mantis`,
+    $localize`Bat`,
+    $localize`Rhino`,
+    $localize`Gator`,
+    $localize`Monkey`,
+    $localize`Swan`,
+    $localize`Ray`,
+    $localize`Crow`,
+    $localize`Goat`,
+    $localize`Marmot`,
+    $localize`Dog`,
+    $localize`Finch`,
+    $localize`Puffin`,
+    $localize`Fly`,
+    $localize`Camel`,
+    $localize`Kiwi`,
+    $localize`Spider`,
+    $localize`Lizard`,
+    $localize`Robin`,
+    $localize`Bear`,
+    $localize`Boa`,
+    $localize`Cow`,
+    $localize`Crab`,
+    $localize`Mule`,
+    $localize`Moth`,
+    $localize`Lynx`,
+    $localize`Moose`,
+    $localize`Skunk`,
+    $localize`Mako`,
+    $localize`Liger`,
+    $localize`Llama`,
+    $localize`Shrimp`,
+    $localize`Parrot`,
+    $localize`Pig`,
+    $localize`Clam`,
+    $localize`Urchin`,
+    $localize`Toucan`,
+    $localize`Frog`,
+    $localize`Toad`,
+    $localize`Turtle`,
+    $localize`Viper`,
+    $localize`Trout`,
+    $localize`Hare`,
+    $localize`Bee`,
+    $localize`Krill`,
+    $localize`Dodo`,
+    $localize`Tuna`,
+    $localize`Loon`,
+    $localize`Leech`,
+    $localize`Python`,
+    $localize`Wasp`,
+    $localize`Yak`,
+    $localize`Snake`,
+    $localize`Duck`,
+    $localize`Worm`,
+    $localize`Yeti`
+  ];
+
+  constructor(
+    private id: number,
+    private ids: number[]
+  ) {}
+
+  getName(prefix: string = $localize`Anonymous`): string {
+    let names = this.nameOptions;
+    if (this.ids.length > this.nameOptions.length) {
+      names = this.nameOptions.map((name) => name + ' ' + 1);
+      let i = 2;
+      while (this.ids.length > names.length) {
+        names = names.concat(this.nameOptions.map((name) => name + ' ' + i));
+        i++;
+      }
+    }
+    return `${prefix} ${names.at(this.ids.indexOf(this.id))}`;
+  }
+}

src/assets/wise5/components/discussion/DiscussionInfo.ts

@@ -15,6 +15,7 @@ export class DiscussionInfo extends ComponentInfo {
         showSubmitButton: false,
         isStudentAttachmentEnabled: true,
         gateClassmateResponses: true,
+        anonymizeResponses: false,
         constraints: []
       }
     }

src/assets/wise5/components/discussion/discussion-authoring/discussion-authoring.component.html

@@ -18,3 +18,11 @@
 >
   Students must create a post before viewing classmates' posts
 </mat-checkbox>
+<mat-checkbox
+  color="primary"
+  [(ngModel)]="componentContent.anonymizeResponses"
+  (ngModelChange)="componentChanged()"
+  i18n
+>
+  Anonymize (students cannot see classmates' names)
+</mat-checkbox>

src/assets/wise5/components/discussion/discussion-student/discussion-student.component.ts

@@ -457,12 +457,17 @@ export class DiscussionStudent extends ComponentStudent {
     return this.componentContent.gateClassmateResponses;
   }
 
+  protected isAnonymizeResponses(): boolean {
+    return this.componentContent.anonymizeResponses;
+  }
+
   setClassResponses(componentStates: any[], annotations: any[] = []): void {
     const isStudentMode = true;
     this.classResponses = this.discussionService.getClassResponses(
       componentStates,
       annotations,
-      isStudentMode
+      isStudentMode,
+      this.isAnonymizeResponses()
     );
     this.responsesMap = this.discussionService.getResponsesMap(this.classResponses);
     this.topLevelResponses = this.discussionService.getLevel1Responses(
@@ -475,7 +480,7 @@ export class DiscussionStudent extends ComponentStudent {
 
   addClassResponse(componentState: any): void {
     if (componentState.studentData.isSubmit) {
-      this.discussionService.setUsernames(componentState);
+      this.discussionService.setUsernames(componentState, this.isAnonymizeResponses());
       componentState.replies = [];
       this.classResponses.push(componentState);
       this.addResponseToResponsesMap(this.responsesMap, componentState);

src/assets/wise5/components/discussion/discussion-teacher/discussion-teacher.component.ts

@@ -33,6 +33,7 @@ import { DiscussionStudent } from '../discussion-student/discussion-student.comp
 })
 export class DiscussionTeacherComponent extends DiscussionStudent {
   @Input() periodId: number;
+  @Input() anonymizeResponses: boolean;
 
   ngOnChanges(changes: SimpleChanges): void {
     if (changes.component) {
@@ -55,4 +56,8 @@ export class DiscussionTeacherComponent extends DiscussionStudent {
   disableComponentIfNecessary(): void {
     // no need to disable the component for teacher
   }
+
+  protected isAnonymizeResponses(): boolean {
+    return this.anonymizeResponses;
+  }
 }

src/assets/wise5/components/discussion/discussionService.ts

@@ -5,6 +5,7 @@ import { HttpClient } from '@angular/common/http';
 import { forkJoin, Observable } from 'rxjs';
 import { map } from 'rxjs/operators';
 import { serverSaveTimeComparator } from '../../common/object/object';
+import { Anonymizer } from './Anonymizer';
 
 @Injectable()
 export class DiscussionService extends ComponentService {
@@ -25,6 +26,7 @@ export class DiscussionService extends ComponentService {
     component.prompt = '';
     component.isStudentAttachmentEnabled = true;
     component.gateClassmateResponses = true;
+    component.anonymizeResponses = false;
     return component;
   }
 
@@ -211,14 +213,15 @@ export class DiscussionService extends ComponentService {
   getClassResponses(
     componentStates: any[],
     annotations = [],
-    isStudentMode: boolean = false
+    isStudentMode: boolean = false,
+    anonymizeResponses: boolean = false
   ): any[] {
     const classResponses = [];
     componentStates = componentStates.sort(serverSaveTimeComparator);
     for (const componentState of componentStates) {
       if (componentState.studentData.isSubmit) {
         componentState.replies = [];
-        this.setUsernames(componentState);
+        this.setUsernames(componentState, anonymizeResponses);
         const latestInappropriateFlagAnnotation =
           this.getLatestInappropriateFlagAnnotationByStudentWorkId(annotations, componentState.id);
         if (isStudentMode) {
@@ -243,8 +246,17 @@ export class DiscussionService extends ComponentService {
     return annotation.data.action === 'Delete';
   }
 
-  setUsernames(componentState: any): void {
-    const workgroupId = componentState.workgroupId;
+  setUsernames(componentState: any, anonymizeResponses: boolean = false): void {
+    const { workgroupId, periodId } = componentState;
+    if (anonymizeResponses) {
+      const workgroupIds = this.configService
+        .getClassmateUserInfos()
+        .filter((userInfo) => userInfo.periodId === periodId)
+        .map((userInfo) => userInfo.workgroupId)
+        .concat(workgroupId);
+      componentState.usernames = new Anonymizer(workgroupId, workgroupIds).getName();
+      return;
+    }
     const usernames = this.configService.getUsernamesByWorkgroupId(workgroupId);
     if (usernames.length > 0) {
       componentState.usernames = this.configService.getUsernamesStringByWorkgroupId(workgroupId);

src/assets/wise5/directives/teacher-summary-display/discussion-summary/discussion-summary.component.ts

@@ -1,35 +1,58 @@
 import { CommonModule } from '@angular/common';
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
 import { Component as WISEComponent } from '../../../common/Component';
 import { TeacherSummaryDisplayComponent } from '../teacher-summary-display.component';
 import { ComponentFactory } from '../../../common/ComponentFactory';
 import { DiscussionTeacherComponent } from '../../../components/discussion/discussion-teacher/discussion-teacher.component';
+import { MatSlideToggle } from '@angular/material/slide-toggle';
+import { FormsModule } from '@angular/forms';
 
 @Component({
-  imports: [CommonModule, DiscussionTeacherComponent],
+  imports: [CommonModule, DiscussionTeacherComponent, FormsModule, MatSlideToggle],
   selector: 'discussion-summary',
   styleUrl: '../../summary-display/summary-display.component.scss',
   template: `
     <div [class.expanded]="expanded">
       <h2 class="mat-subtitle-1" i18n>Class Discussion</h2>
+      <div class="mb-4 flex flex-wrap gap-4 justify-between items-center">
+        <mat-slide-toggle
+          [(ngModel)]="anonymizeResponses"
+          (change)="anonymizeResponsesChanged()"
+          i18n
+        >
+          Hide student names
+        </mat-slide-toggle>
+        @if (component.content.anonymizeResponses) {
+          <span class="mat-caption" i18n
+            >Note: Students do not see each other's names in this activity.</span
+          >
+        }
+      </div>
       <discussion-teacher
         class="max-h-160 block overflow-y-auto"
         [class.max-h-none]="expanded"
         [nodeId]="nodeId"
         [component]="component"
         [periodId]="periodId"
+        [anonymizeResponses]="anonymizeResponses"
         [mode]="'summary'"
       />
     </div>
   `
 })
 export class DiscussionSummaryComponent extends TeacherSummaryDisplayComponent implements OnInit {
+  @Input() anonymizeResponses: boolean;
   protected component: WISEComponent;
   @Input() expanded: boolean;
+  @Output() anonymizeResponsesChange = new EventEmitter<boolean>();
 
   ngOnInit(): void {
     let content = this.projectService.getComponent(this.nodeId, this.componentId);
     content = this.projectService.injectAssetPaths(content);
     this.component = new ComponentFactory().getComponent(content, this.nodeId);
   }
+
+  protected anonymizeResponsesChanged() {
+    this.anonymizeResponsesChange.emit(this.anonymizeResponses);
+  }
 }