import { Injectable } from '@angular/core';
import { LanguageData } from './language.model';
import { HttpClient, HttpParams, HttpHeaders } from '@angular/common/http';
import { ConfigData } from './configdata';

@Injectable({
  providedIn: 'root'
})

export class LanguageService {

  private baseURL = 'http://localhost:8080/getlang';

  public zgoLanguage: string = '';

  constructor(private http:HttpClient) { 
  }

  getViewElements ( viewName:string )  {
    //
    // Get default language from localStorage
    //
    var def_zgoLanguage = localStorage.getItem('zgo_language');

    if ( def_zgoLanguage == null ) {
      this.zgoLanguage = 'en-US';
      localStorage.setItem('zgo_language',this.zgoLanguage);
    } else {
      this.zgoLanguage = def_zgoLanguage;
    }
    //
    // Get View's text data from language database
    //
    return this.http.get<LanguageData>(this.baseURL + 
                        '/?lang_id=' + this.zgoLanguage +
                        '&viewname=' + viewName);
  }  
}