fix(ENG-10087): Update preprint download url

src/app/app.routes.ts

@@ -107,6 +107,13 @@ export const routes: Routes = [
             '@osf/features/preprints/pages/preprint-pending-moderation/preprint-pending-moderation.component'
           ).then((mod) => mod.PreprintPendingModerationComponent),
       },
+      {
+        path: 'preprints/:providerId/:id/download',
+        loadComponent: () =>
+          import('@osf/features/preprints/pages/preprint-download-redirect/preprint-download-redirect.component').then(
+            (c) => c.PreprintDownloadRedirectComponent
+          ),
+      },
       {
         path: 'preprints/:providerId/:id',
         loadComponent: () =>

src/app/features/preprints/pages/preprint-download-redirect/preprint-download-redirect.component.spec.ts

@@ -0,0 +1,82 @@
+import { MockProvider } from 'ng-mocks';
+
+import { PLATFORM_ID } from '@angular/core';
+import { TestBed } from '@angular/core/testing';
+import { ActivatedRoute } from '@angular/router';
+
+import { SocialShareService } from '@osf/shared/services/social-share.service';
+
+import { PreprintDownloadRedirectComponent } from './preprint-download-redirect.component';
+
+import { provideOSFCore } from '@testing/osf.testing.provider';
+import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
+
+const MOCK_ID = 'test-preprint-id';
+const MOCK_DOWNLOAD_URL = 'https://osf.io/download/test-preprint-id';
+
+describe('PreprintDownloadRedirectComponent', () => {
+  let locationReplaceMock: jest.Mock;
+
+  beforeEach(() => {
+    locationReplaceMock = jest.fn();
+    Object.defineProperty(window, 'location', {
+      value: { replace: locationReplaceMock },
+      writable: true,
+      configurable: true,
+    });
+  });
+
+  function setup(overrides: { id?: string | null; isBrowser?: boolean } = {}) {
+    const { id = MOCK_ID, isBrowser = true } = overrides;
+
+    const mockRoute = ActivatedRouteMockBuilder.create()
+      .withParams(id ? { id } : {})
+      .build();
+
+    const mockSocialShareService = {
+      createDownloadUrl: jest.fn().mockReturnValue(MOCK_DOWNLOAD_URL),
+    };
+
+    TestBed.configureTestingModule({
+      imports: [PreprintDownloadRedirectComponent],
+      providers: [
+        provideOSFCore(),
+        MockProvider(ActivatedRoute, mockRoute),
+        MockProvider(SocialShareService, mockSocialShareService),
+        MockProvider(PLATFORM_ID, isBrowser ? 'browser' : 'server'),
+      ],
+    });
+
+    const fixture = TestBed.createComponent(PreprintDownloadRedirectComponent);
+    return { fixture, component: fixture.componentInstance, mockSocialShareService };
+  }
+
+  it('should create', () => {
+    const { component } = setup();
+    expect(component).toBeTruthy();
+  });
+
+  it('should render download message', () => {
+    const { fixture } = setup();
+    fixture.detectChanges();
+    expect(fixture.nativeElement.querySelector('p').textContent).toContain('preprints.downloadRedirect.message');
+  });
+
+  it('should redirect to download URL when id is present in browser', () => {
+    const { mockSocialShareService } = setup({ id: MOCK_ID });
+    expect(mockSocialShareService.createDownloadUrl).toHaveBeenCalledWith(MOCK_ID);
+    expect(locationReplaceMock).toHaveBeenCalledWith(MOCK_DOWNLOAD_URL);
+  });
+
+  it('should not redirect when id is missing', () => {
+    const { mockSocialShareService } = setup({ id: null });
+    expect(mockSocialShareService.createDownloadUrl).not.toHaveBeenCalled();
+    expect(locationReplaceMock).not.toHaveBeenCalled();
+  });
+
+  it('should not redirect when not in browser', () => {
+    const { mockSocialShareService } = setup({ isBrowser: false });
+    expect(mockSocialShareService.createDownloadUrl).not.toHaveBeenCalled();
+    expect(locationReplaceMock).not.toHaveBeenCalled();
+  });
+});

src/app/features/preprints/pages/preprint-download-redirect/preprint-download-redirect.component.ts

@@ -0,0 +1,30 @@
+import { TranslatePipe } from '@ngx-translate/core';
+
+import { isPlatformBrowser } from '@angular/common';
+import { ChangeDetectionStrategy, Component, inject, PLATFORM_ID } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+
+import { SocialShareService } from '@osf/shared/services/social-share.service';
+
+@Component({
+  selector: 'osf-preprint-download-redirect',
+  template: `<p>{{ 'preprints.downloadRedirect.message' | translate }}</p>`,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  imports: [TranslatePipe],
+})
+export class PreprintDownloadRedirectComponent {
+  private readonly route = inject(ActivatedRoute);
+  private readonly socialShareService = inject(SocialShareService);
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
+
+  constructor() {
+    const id = this.route.snapshot.paramMap.get('id') ?? '';
+
+    if (!id || !this.isBrowser) {
+      return;
+    }
+
+    const url = this.socialShareService.createDownloadUrl(id);
+    window.location.replace(url);
+  }
+}

src/assets/i18n/en.json

@@ -2345,6 +2345,9 @@
         "singularCapitalized": "Thesis"
       }
     },
+    "downloadRedirect": {
+      "message": "Your download will begin shortly."
+    },
     "details": {
       "reasonForWithdrawal": "Reason for withdrawal",
       "originalPublicationDate": "Original Publication Date",