import {
  APP_INITIALIZER,
  ApplicationConfig,
  provideExperimentalZonelessChangeDetection,
} from '@angular/core';
import { provideRouter } from '@angular/router';

import { routes } from './app.routes';
import {
  KeycloakAngularModule,
  KeycloakBearerInterceptor,
  KeycloakService,
} from 'keycloak-angular';
import { HTTP_INTERCEPTORS, provideHttpClient, withInterceptorsFromDi } from '@angular/common/http';

export const initializeKeycloak = (keycloak: KeycloakService) => async () =>
  keycloak.init({
    config: {
      url: 'http://localhost:9090',
      realm: 'LF12',
      clientId: 'lf12',
    },
    loadUserProfileAtStartUp: true,
    initOptions: {
      onLoad: 'check-sso',
      silentCheckSsoRedirectUri: window.location.origin + '/silent-check-sso.html',
      checkLoginIframe: false,
      redirectUri: 'http://localhost:4200',
    },
  });

function initializeApp(keycloak: KeycloakService): () => Promise<boolean> {
  return () => initializeKeycloak(keycloak)();
}

export const appConfig: ApplicationConfig = {
  providers: [
    provideRouter(routes),
    KeycloakAngularModule,
    {
      provide: APP_INITIALIZER,
      useFactory: initializeApp,
      multi: true,
      deps: [KeycloakService],
    },
    KeycloakService,
    provideHttpClient(withInterceptorsFromDi()),
    provideExperimentalZonelessChangeDetection(),
    {
      provide: HTTP_INTERCEPTORS,
      useClass: KeycloakBearerInterceptor,
      multi: true,
    },
  ],
};