library-ts/browser/i18n/MultiString.ts

import { ElementType } from "../dom/ElementType";
import { LanguageCode, LanguageCodes } from "./LanguageCode";

export class MultiString
{
  en:string;
  de?:string;
  fr?:string;
  es?:string;
  pt?:string;
  it?:string;
  ru?:string;  
  ja?:string;
  zh?:string;


  static _htmlType:ElementType<any>;

  static create( value:string )
  {
    let ms = new MultiString();
    ms.en = value;
    return ms;
  }

  static resolve( value:string|MultiString )
  { 
    if ( typeof value === "string" )
    {
      return value;
    }

    let ms = value as MultiString;
    
    return MultiString.get( ms, LanguageCodes.current, LanguageCodes.fallback );
  }

  static get htmlType()
  {
    if ( MultiString._htmlType )
    {
      return MultiString._htmlType;
    }

    MultiString._htmlType = new ElementType( "multi--string" );

    return MultiString._htmlType;
  }

  static asArray( ms:MultiString)
  {
    return [ ms.en, ms.de, ms.fr, ms.es, ms.pt, ms.it, ms.ru, ms.ja, ms.zh ];
  }

  static get( ms:MultiString, code:LanguageCode, fallback:LanguageCode = LanguageCodes.en )
  {
    //console.log( "get > ms", ms );
    let value = MultiString.fromCode( ms, code );

    if ( value )
    {
      return value;
    }

    return MultiString.fromCode( ms, fallback );
  }

  static set( ms:MultiString, code:LanguageCode, value:string )
  {
    switch ( code )
    {
      case LanguageCodes.en: { ms.en = value; } break;
      case LanguageCodes.de: { ms.de = value; } break;
      case LanguageCodes.fr: { ms.fr = value; } break;
      case LanguageCodes.es: { ms.es = value; } break;
      case LanguageCodes.pt: { ms.pt = value; } break;
      case LanguageCodes.it: { ms.it = value; } break;
      case LanguageCodes.ru: { ms.ru = value; } break;
      case LanguageCodes.ja: { ms.ja = value; } break;
      case LanguageCodes.zh: { ms.zh = value; } break;
    }
  }
  
  static fromCode( ms:MultiString, code:LanguageCode )
  {
    switch ( code )
    {
      case LanguageCodes.en: return ms.en;
      case LanguageCodes.de: return ms.de;
      case LanguageCodes.fr: return ms.fr;
      case LanguageCodes.es: return ms.es;
      case LanguageCodes.pt: return ms.pt;
      case LanguageCodes.it: return ms.it;
      case LanguageCodes.ru: return ms.ru;  
      case LanguageCodes.ja: return ms.ja;
      case LanguageCodes.zh: return ms.zh;
    }
  }
}