[ENG-10316] SSR config updates (#889)

- Ticket: [ENG-10316]
- Feature flag: n/a

## Summary of Changes
1. Updated config for SSR.

Author: nsemets

src/app/core/services/osf-config.service.ts

@@ -43,20 +43,24 @@ export class OSFConfigService {
    * On the server, this is skipped as config is only needed in the browser.
    */
   async load(): Promise<void> {
-    if (!this.config && isPlatformBrowser(this.platformId)) {
+    if (this.config) return;
+
+    if (isPlatformBrowser(this.platformId)) {
       this.config = await lastValueFrom<ConfigModel>(
         this.http.get<ConfigModel>('/assets/config/config.json').pipe(
           shareReplay(1),
           catchError(() => of({} as ConfigModel))
         )
       );
+    } else {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      this.config = ((globalThis as any).__SSR_CONFIG__ ?? {}) as ConfigModel;
+    }
 
-      // Apply every key from config to environment
-      for (const [key, value] of Object.entries(this.config)) {
-        // eslint-disable-next-line
-        // @ts-ignore
-        this.environment[key] = value;
-      }
+    for (const [key, value] of Object.entries(this.config)) {
+      // eslint-disable-next-line
+      // @ts-ignore
+      this.environment[key] = value;
     }
   }
 }

src/server.ts

@@ -6,12 +6,25 @@ import {
 } from '@angular/ssr/node';
 
 import express from 'express';
+import { existsSync, readFileSync } from 'node:fs';
 import { dirname, resolve } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 const serverDistFolder = dirname(fileURLToPath(import.meta.url));
 const browserDistFolder = resolve(serverDistFolder, '../browser');
 
+const configPath = resolve(browserDistFolder, 'assets/config/config.json');
+
+if (existsSync(configPath)) {
+  try {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    (globalThis as any).__SSR_CONFIG__ = JSON.parse(readFileSync(configPath, 'utf-8'));
+  } catch {
+    // eslint-disable-next-line no-console
+    console.warn('Failed to parse SSR config at', configPath);
+  }
+}
+
 const app = express();
 const angularApp = new AngularNodeAppEngine();