var ccn_i18n_i18nSupported = ['en-US', 'zh-CN'];
var ccn_i18n_currentLanguage = 'en-US';
var ccn_pages_enumPages = {
    home : 0,
    calendar: 1,
    todo: 2,
    admin: 3,
    login: 4,
    collection: 5,
    event: 6
};
var ccn_pages_currentPage = ccn_pages_enumPages.home;

// judge current language
ccn_i18n_currentLanguage = ccn_localstorageAssist_Get('ccn-i18n', 'en-US');
if (ccn_i18n_i18nSupported.indexOf(ccn_i18n_currentLanguage) == -1){
    ccn_localstorageAssist_Set('ccn-i18n', 'en-US');
    ccn_i18n_currentLanguage = 'en-US';
}

function ccn_i18n_ChangeLanguage(newLang) {
    if (ccn_i18n_i18nSupported.indexOf(newLang) == -1) return false;
    ccn_i18n_currentLanguage = newLang;
    ccn_localstorageAssist_Set('ccn-i18n', newLang);
    return true;
}

function ccn_i18n_LoadLanguage() {
    $.i18n.properties({
        name: 'strings_' + ccn_i18n_currentLanguage,
        path: '/static/i18n/',
        encoding: 'utf-8',
        mode: 'map',
        async: false,
        cache: false,
        language: ccn_i18n_currentLanguage
    });
}

function ccn_i18n_ApplyLanguage() {
    //set usual block
    var cache = $("[i18n-name]");
    cache.each(function() {
        $(this).html($.i18n.prop($(this).attr('i18n-name')));
    });

    //set unusual block
    //set title
    switch(ccn_pages_currentPage) {
        case ccn_pages_enumPages.home:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-home'));
            break;
        case ccn_pages_enumPages.calendar:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-calendar'));
            break;
        case ccn_pages_enumPages.todo:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-todo'));
            break;
        case ccn_pages_enumPages.admin:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-admin'));
            break;
        case ccn_pages_enumPages.login:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-login'));
            break;
        case ccn_pages_enumPages.collection:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-collection'));
            break;
        case ccn_pages_enumPages.event:
            $('#ccn-pageName').html($.i18n.prop('ccn-i18n-pageName-event'));
            break;
    }
}

function ccn_i18n_ApplyLanguage2Content(ctx) {
    ctx.find("[i18n-name]").each(function() {
        $(this).html($.i18n.prop($(this).attr('i18n-name')));
    });
}

// note: month is zero based
function ccn_i18n_UniversalGetMonth(month) {
    return $.i18n.prop('ccn-i18n-universal-month-' + (month + 1));
}

// note: day of week is zero based
function ccn_i18n_UniversalGetDayOfWeek(dayOfWeek) {
    return $.i18n.prop('ccn-i18n-universal-week-' + (dayOfWeek + 1));
}