(function () {
var LS_LANG = "CRYPTPAD_LANG";

var getStoredLanguage = function () { return localStorage.getItem(LS_LANG); };
var getBrowserLanguage = function () { return navigator.language || navigator.userLanguage; };
var getLanguage = function () { return getStoredLanguage() || getBrowserLanguage(); };
var language = getLanguage();

// add your module to this map so it gets used
var map = {
    'fr': 'Français',
    'es': 'Español',
    'pl': 'Polski',
    'de': 'Deutsch',
    'pt-br': 'Português do Brasil'
};

var req = ['/customize/translations/messages.js'];
if (language && map[language]) { req.push('/customize/translations/messages.' + language + '.js'); }
req.push('/bower_components/jquery/dist/jquery.min.js');

define(req, function(Default, Language) {
    var $ = window.jQuery;

    var externalMap = JSON.parse(JSON.stringify(map));

    map.en = 'English';
    var defaultLanguage = 'en';

    var messages;

    if (!Language || !language || language === defaultLanguage || language === 'default' || !map[language]) {
        messages = Default;
    }
    else {
        // Add the translated keys to the returned object
        messages = $.extend(true, {}, Default, Language);
    }

    messages._languages = map;

    messages._checkTranslationState = function (cb) {
        if (typeof(cb) !== "function") { return; }
        var missing = [];
        var reqs = [];
        Object.keys(externalMap).forEach(function (code) {
            reqs.push('/customize/translations/messages.' + code + '.js');
        });
        require(reqs, function () {
            var langs = arguments;
            Object.keys(externalMap).forEach(function (code, i) {
                var translation = langs[i];
                Object.keys(Default).forEach(function (k) {
                    if (/^_/.test(k) || /nitialState$/.test(k)) { return; }
                    if (!translation[k]) {
                        var warning = "key [" + k + "] is missing from translation [" + code + "]";
                        missing.push(warning);
                    }
                });
                Object.keys(translation).forEach(function (k) {
                    if (/^_/.test(k) || /nitialState$/.test(k)) { return; }
                    if (!Default[k]) {
                        var warning = "key [" + k + "] from [" + code + "] is not needed anymore and should be removed";
                        missing.push(warning);
                    }
                });
                /*if (typeof(translation._languageName) !== 'string') {
                    var warning = 'key [_languageName] is missing from translation [' + code + ']';
                    missing.push(warning);
                }*/
            });
            cb(missing);
        });
    };

    // Get keys with parameters
    messages._getKey = function (key, argArray) {
        if (!messages[key]) { return '?'; }
        var text = messages[key];
        return text.replace(/\{(\d+)\}/g, function (str, p1) {
            return argArray[p1] || null;
        });
    };

    // Add handler to the language selector
    var storeLanguage = function (l) {
        localStorage.setItem(LS_LANG, l);
    };
    messages._initSelector = function ($select) {
        var selector = $select || $('#language-selector');

        if (!selector.length) { return; }

        var $button = $(selector).find('button .buttonTitle');
        // Select the current language in the list
        var option = $(selector).find('[data-value="' + language + '"]');
        if ($(option).length) {
            $button.text($(option).text());
        }
        else {
            $button.text('English');
        }

        // Listen for language change
        $(selector).find('a.languageValue').on('click', function () {
            var newLanguage = $(this).attr('data-value');
            storeLanguage(newLanguage);
            if (newLanguage !== language) {
                window.location.reload();
            }
        });
    };

    var translateText = function (i, e) {
        var $el = $(e);
        var key = $el.data('localization');
        $el.html(messages[key]);
    };
    var translateAppend = function (i, e) {
        var $el = $(e);
        var key = $el.data('localization-append');
        $el.append(messages[key]);
    };
    var translateTitle = function (i, e) {
        var $el = $(this);
        var key = $el.data('localization-title');
        $el.attr('title', messages[key]);
    };
    var translatePlaceholder = function (i, e) {
        var $el = $(this);
        var key = $el.data('localization-placeholder');
        $el.attr('placeholder', messages[key]);
    };
    messages._applyTranslation = function () {
        $('[data-localization]').each(translateText);
        $('[data-localization-append]').each(translateAppend);
        $('#pad-iframe').contents().find('[data-localization]').each(translateText);
        $('[data-localization-title]').each(translateTitle);
        $('[data-localization-placeholder]').each(translatePlaceholder);
        $('#pad-iframe').contents().find('[data-localization-title]').each(translateTitle);
    };

    // Non translatable keys
    messages.initialState = [
        '<p>',
        'This is <strong>CryptPad</strong>, the zero knowledge realtime collaborative editor.',
        '<br>',
        'What you type here is encrypted so only people who have the link can access it.',
        '<br>',
        'Even the server cannot see what you type.',
        '</p>',
        '<p>',
        '<small>',
        '<i>What you see here, what you hear here, when you leave here, let it stay here</i>',
        '</small>',
        '</p>',
    ].join('');

    messages.driveReadme = '["BODY",{"class":"cke_editable cke_editable_themed cke_contents_ltr cke_show_borders","contenteditable":"true","spellcheck":"false","style":"color: rgb(51, 51, 51);"},' +
        '[["H1",{},["' + messages.driveReadme_h1 + '",["BR",{},[]]]],["UL",{},[["LI",{},["' + messages.driveReadme_li1 + '",["BR",{},[]],["UL",{},[["LI",{},["' + messages.driveReadme_li1_1 + '",["BR",{},[]]]]]]]]]]],' +
        '{"metadata":{"defaultTitle":"' + messages.driveReadmeTitle + '","title":"' + messages.driveReadmeTitle + '"}}]';

    return messages;

});
}());