93219: Move APP_INITIALIZER logic into InitService

src/modules/app/browser-init.service.ts

@@ -0,0 +1,54 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+import { InitService } from '../../app/init.service';
+import { Store } from '@ngrx/store';
+import { AppState } from '../../app/app.reducer';
+import { DSpaceTransferState } from '../transfer-state/dspace-transfer-state.service';
+import { TransferState } from '@angular/platform-browser';
+import { APP_CONFIG_STATE, AppConfig } from '../../config/app-config.interface';
+import { DefaultAppConfig } from '../../config/default-app-config';
+import { extendEnvironmentWithAppConfig } from '../../config/config.util';
+import { environment } from '../../environments/environment';
+import { CorrelationIdService } from '../../app/correlation-id/correlation-id.service';
+import { Injectable } from '@angular/core';
+
+/**
+ * Performs client-side initialization.
+ */
+@Injectable()
+export class BrowserInitService extends InitService {
+  constructor(
+    protected store: Store<AppState>,
+    protected correlationIdService: CorrelationIdService,
+    protected transferState: TransferState,
+    protected dspaceTransferState: DSpaceTransferState,
+  ) {
+    super(store, correlationIdService, dspaceTransferState);
+  }
+
+  public init(): () => Promise<boolean> {
+    // this method must be called before the callback because APP_BASE_HREF depends on it
+    this.loadAppConfigFromSSR();
+
+    return async () => {
+      await this.transferAppState();
+      this.checkAuthenticationToken();
+      this.initCorrelationId();
+
+      return true;
+    };
+  }
+
+  private loadAppConfigFromSSR(): void {
+    if (this.transferState.hasKey<AppConfig>(APP_CONFIG_STATE)) {
+      const appConfig = this.transferState.get<AppConfig>(APP_CONFIG_STATE, new DefaultAppConfig());
+      // extend environment with app config for browser
+      extendEnvironmentWithAppConfig(environment, appConfig);
+    }
+  }
+}