/*

 * Enano client-side localization library

 */

var Language = function(lang_id)

{

  if ( typeof(enano_lang) != 'object' )

    return false;

  if ( typeof(enano_lang[lang_id]) != 'object' )

    return false;

  this.strings = enano_lang[lang_id];

  this.lang_id = lang_id;

  this.get = function(string_id, subst)

  {

    if ( window.console )

    {

      try {

        window.console.log('$lang(' + this.lang_id + '): requested string: ' + string_id);

      }

      catch(e)

      {}

    }

    var catname = string_id.substr(0, string_id.indexOf('_'));

    var string_name = string_id.substr(string_id.indexOf('_') + 1);

    if ( typeof(this.strings[catname]) != 'object' )

      return string_id;

    if ( typeof(this.strings[catname][string_name]) != 'string' )

      return string_id;

    return this.perform_subst(this.strings[catname][string_name], subst);

  }

  this.perform_subst = function(str, subst)

  {

    var this_regex = /%this\.([a-z0-9_]+)%/;

    var match;

    while ( str.match(this_regex) )

    {

      match = str.match(this_regex);

      str = str.replace(match[0], this.get(match[1]));

    }

    // hackish workaround for %config.*%

    str = str.replace(/%config\.([a-z0-9_]+)%/g, '%$1%');

    if ( typeof(subst) == 'object' )

    {

      for ( var i in subst )

      {

        if ( !i.match(/^([a-z0-9_]+)$/) )

          continue;

        var regex = new RegExp('%' + i + '%', 'g');

        str = str.replace(regex, subst[i]);

      }

    }

    return str;

  }

}

var $lang;

var language_onload = function()

{

  if ( typeof(enano_lang) != 'object' )

  {

    language_onload_resched();

    return true;

  }

  if ( !enano_lang[ENANO_LANG_ID] )

  {

    language_onload_resched();

    return true;

  }

  $lang = new Language(ENANO_LANG_ID);

}

// Rescheduler for language onload - allows delaying init if the string list

// isn't ready yet

function language_onload_resched()

{

  if ( window.console )

  {

    window.console.info('Delaying language init by 0.2s because language_onload decided that enano_lang[ENANO_LANG_ID] isn\'t ready');

  }

  setTimeout('language_onload();', 200);

}

addOnloadHook(language_onload);