import { Component, OnInit } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';

@Component({
 selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
 title = 'angular-universal-i18n';

 constructor(private translate: TranslateService) {}

 public ngOnInit(): void {
   this.setDefaultTranslation();
 }

 private setDefaultTranslation(): void {
   if (['en', 'es', 'zh', 'ru'].indexOf(this.translate.getBrowserLang()) > -1) {
     this.translate.setDefaultLang(this.translate.getBrowserLang());
   } else {
     this.translate.setDefaultLang('en');
   }
 }

 public switchLanguage(lang: string): void {
   this.translate.setDefaultLang(lang);
 }
}