//var langOptionHash = {}; // initialized in defaults.js
fc.langs = langOptionHash; // expose


// Initialize jQuery UI Datepicker translations while using some of the translations
// for our own purposes. Will set this as the default language for datepicker.
// Called from a translation file.
fc.datepickerLang = function(langCode, datepickerLangCode, options) {
	var langOptions = langOptionHash[langCode];

	// initialize FullCalendar's lang hash for this language
	if (!langOptions) {
		langOptions = langOptionHash[langCode] = {};
	}

	// merge certain Datepicker options into FullCalendar's options
	mergeOptions(langOptions, {
		isRTL: options.isRTL,
		weekNumberTitle: options.weekHeader,
		titleFormat: {
			month: options.showMonthAfterYear ?
				'YYYY[' + options.yearSuffix + '] MMMM' :
				'MMMM YYYY[' + options.yearSuffix + ']'
		},
		defaultButtonText: {
			// the translations sometimes wrongly contain HTML entities
			prev: stripHTMLEntities(options.prevText),
			next: stripHTMLEntities(options.nextText),
			today: stripHTMLEntities(options.currentText)
		}
	});

	// is jQuery UI Datepicker is on the page?
	if ($.datepicker) {

		// Register the language data.
		// FullCalendar and MomentJS use language codes like "pt-br" but Datepicker
		// does it like "pt-BR" or if it doesn't have the language, maybe just "pt".
		// Make an alias so the language can be referenced either way.
		$.datepicker.regional[datepickerLangCode] =
			$.datepicker.regional[langCode] = // alias
				options;

		// Alias 'en' to the default language data. Do this every time.
		$.datepicker.regional.en = $.datepicker.regional[''];

		// Set as Datepicker's global defaults.
		$.datepicker.setDefaults(options);
	}
};


// Sets FullCalendar-specific translations. Also sets the language as the global default.
// Called from a translation file.
fc.lang = function(langCode, options) {
	var langOptions;

	if (options) {
		langOptions = langOptionHash[langCode];

		// initialize the hash for this language
		if (!langOptions) {
			langOptions = langOptionHash[langCode] = {};
		}

		mergeOptions(langOptions, options || {});
	}

	// set it as the default language for FullCalendar
	defaults.lang = langCode;
};