/*

 * Enano client-side localization library

 */

var Language = function(lang_id)

{

	var have_lang = false;

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

	{

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

		{

			have_lang = true;

		}

	}

	if ( !have_lang )

	{

		// load the language file

		load_show_win('strings');

		console.info('Loading language ' + lang_id + ' via AJAX synchronous request');

		var ajax = ajaxMakeXHR();

		var uri = makeUrlNS('Special', 'LangExportJSON/' + lang_id, enano_version);

		ajax.open('GET', uri, false);

		ajax.send(null);

		if ( ajax.readyState == 4 && ajax.status == 200 )

		{

			eval_global(ajax.responseText);

		}

		load_hide_win();

	}

	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.placeholder = false;

	this.get = function(string_id, subst)

	{

		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 language_onload = function()

{

	$lang = new Language(ENANO_LANG_ID);

}

var $lang = {

	get: function(t, s) {

		language_onload();

		return $lang.get(t, s);

	},

	placeholder: true

};