var isoLangs={af:{name:"Afrikaans",nativeName:"Afrikaans"},sq:{name:"Albanian",nativeName:"Shqip"},am:{name:"Amharic",nativeName:"\u12a0\u121b\u122d\u129b"},ar:{name:"Arabic",nativeName:"\u0627\u0644\u0639\u0631\u0628\u064a\u0629"},hy:{name:"Armenian",nativeName:"\u0540\u0561\u0575\u0565\u0580\u0565\u0576"},az:{name:"Azerbaijani",nativeName:"az\u0259rbaycan dili"},eu:{name:"Basque",nativeName:"euskara"},be:{name:"Belarusian",nativeName:"\u0411\u0435\u043b\u0430\u0440\u0443\u0441\u043a\u0430\u044f"},
bn:{name:"Bengali",nativeName:"\u09ac\u09be\u0982\u09b2\u09be"},bs:{name:"Bosnian",nativeName:"bosanski jezik"},bg:{name:"Bulgarian",nativeName:"\u0431\u044a\u043b\u0433\u0430\u0440\u0441\u043a\u0438 \u0435\u0437\u0438\u043a"},ca:{name:"Catalan",nativeName:"Catal\u00e0"},ceb:{name:"Cebuano",nativeName:"Bisaya"},ny:{name:"Chichewa",nativeName:"chiChe\u0175a"},zh:{name:"Chinese",nativeName:"\u4e2d\u6587 (Zh\u014dngw\u00e9n)"},co:{name:"Corsican",nativeName:"corsu"},hr:{name:"Croatian",nativeName:"hrvatski"},
cs:{name:"Czech",nativeName:"\u010desky"},da:{name:"Danish",nativeName:"dansk"},nl:{name:"Dutch",nativeName:"Nederlands"},en:{name:"English",nativeName:"English"},eo:{name:"Esperanto",nativeName:"Esperanto"},et:{name:"Estonian",nativeName:"eesti"},tl:{name:"Filipino",nativeName:"Pilipino"},fi:{name:"Finnish",nativeName:"suomi"},fr:{name:"French",nativeName:"fran\u00e7ais"},fy:{name:"Frisian",nativeName:"Frysk"},gl:{name:"Galician",nativeName:"Galego"},ka:{name:"Georgian",nativeName:"\u10e5\u10d0\u10e0\u10d7\u10e3\u10da\u10d8"},
de:{name:"German",nativeName:"Deutsch"},el:{name:"Greek",nativeName:"\u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac"},gu:{name:"Gujarati",nativeName:"\u0a97\u0ac1\u0a9c\u0ab0\u0abe\u0aa4\u0ac0"},ht:{name:"Haitian Creole",nativeName:"Krey\u00f2l ayisyen"},ha:{name:"Hausa",nativeName:"Hausa"},haw:{name:"Hawaiian",nativeName:"Hausa"},iw:{name:"Hebrew",nativeName:"\u05e2\u05d1\u05e8\u05d9\u05ea"},hi:{name:"Hindi",nativeName:"\u0939\u093f\u0928\u094d\u0926\u0940, \u0939\u093f\u0902\u0926\u0940"},hmn:{name:"Hmong",
nativeName:"lus Hmoob"},hu:{name:"Hungarian",nativeName:"Magyar"},is:{name:"Icelandic",nativeName:"\u00cdslenska"},ig:{name:"Igbo",nativeName:"As\u1ee5s\u1ee5 Igbo"},id:{name:"Indonesian",nativeName:"Bahasa Indonesia"},ga:{name:"Irish",nativeName:"Gaeilge"},it:{name:"Italian",nativeName:"Italiano"},ja:{name:"Japanese",nativeName:"\u65e5\u672c\u8a9e (\u306b\u307b\u3093\u3054\uff0f\u306b\u3063\u307d\u3093\u3054)"},jv:{name:"Javanese",nativeName:"basa Jawa"},kn:{name:"Kannada",nativeName:"\u0c95\u0ca8\u0ccd\u0ca8\u0ca1"},
kk:{name:"Kazakh",nativeName:"\u049a\u0430\u0437\u0430\u049b \u0442\u0456\u043b\u0456"},km:{name:"Khmer",nativeName:"\u1797\u17b6\u179f\u17b6\u1781\u17d2\u1798\u17c2\u179a"},ko:{name:"Korean",nativeName:"\ud55c\uad6d\uc5b4 (\u97d3\u570b\u8a9e)"},ku:{name:"Kurdish (Kurmanji)",nativeName:"Kurd\u00ee"},ky:{name:"Kyrgyz",nativeName:"\u043a\u044b\u0440\u0433\u044b\u0437 \u0442\u0438\u043b\u0438"},lo:{name:"Lao",nativeName:"\u0e9e\u0eb2\u0eaa\u0eb2\u0ea5\u0eb2\u0ea7"},la:{name:"Latin",nativeName:"latine"},
lv:{name:"Latvian",nativeName:"latvie\u0161u valoda"},lt:{name:"Lithuanian",nativeName:"lietuvi\u0173 kalba"},lb:{name:"Luxembourgish",nativeName:"L\u00ebtzebuergesch"},mk:{name:"Macedonian",nativeName:"\u043c\u0430\u043a\u0435\u0434\u043e\u043d\u0441\u043a\u0438 \u0458\u0430\u0437\u0438\u043a"},mg:{name:"Malagasy",nativeName:"Malagasy fiteny"},ms:{name:"Malay",nativeName:"bahasa Melayu"},ml:{name:"Malayalam",nativeName:"\u0d2e\u0d32\u0d2f\u0d3e\u0d33\u0d02"},mt:{name:"Maltese",nativeName:"Malti"},
mi:{name:"M\u0101ori",nativeName:"te reo M\u0101ori"},mr:{name:"Marathi",nativeName:"\u092e\u0930\u093e\u0920\u0940"},mn:{name:"Mongolian",nativeName:"\u043c\u043e\u043d\u0433\u043e\u043b"},my:{name:"Myanmar",nativeName:"\u1017\u1019\u102c\u1005\u102c"},ne:{name:"Nepali",nativeName:"\u0928\u0947\u092a\u093e\u0932\u0940"},no:{name:"Norwegian",nativeName:"Norsk"},ps:{name:"Pashto",nativeName:"\u067e\u069a\u062a\u0648"},fa:{name:"Persian",nativeName:"\u0641\u0627\u0631\u0633\u06cc"},pl:{name:"Polish",
nativeName:"polski"},pt:{name:"Portuguese",nativeName:"Portugu\u00eas"},pa:{name:"Punjabi",nativeName:"\u0a2a\u0a70\u0a1c\u0a3e\u0a2c"},ro:{name:"Romanian",nativeName:"rom\u00e2n\u0103"},ru:{name:"Russian",nativeName:"\u0440\u0443\u0441\u0441\u043a\u0438\u0439 \u044f\u0437\u044b\u043a"},sm:{name:"Samoan",nativeName:"gagana faa Samoa"},gd:{name:"Scots Gaelic",nativeName:"G\u00e0idhlig"},sr:{name:"Serbian",nativeName:"\u0441\u0440\u043f\u0441\u043a\u0438 \u0458\u0435\u0437\u0438\u043a"},st:{name:"Sesotho",
nativeName:"Sesotho"},sn:{name:"Shona",nativeName:"chiShona"},sd:{name:"Sindhi",nativeName:"\u0938\u093f\u0928\u094d\u0927\u0940"},si:{name:"Sinhala",nativeName:"\u0dc3\u0dd2\u0d82\u0dc4\u0dbd"},sk:{name:"Slovak",nativeName:"sloven\u010dina"},sl:{name:"Slovenian",nativeName:"sloven\u0161\u010dina"},so:{name:"Somali",nativeName:"Soomaaliga"},es:{name:"Spanish",nativeName:"espa\u00f1ol"},su:{name:"Sundanese",nativeName:"Basa Sunda"},sw:{name:"Swahili",nativeName:"Kiswahili"},sv:{name:"Swedish",nativeName:"svenska"},
tg:{name:"Tajik",nativeName:"\u0442\u043e\u04b7\u0438\u043a\u04e3"},ta:{name:"Tamil",nativeName:"\u0ba4\u0bae\u0bbf\u0bb4\u0bcd"},te:{name:"Telugu",nativeName:"\u0c24\u0c46\u0c32\u0c41\u0c17\u0c41"},th:{name:"Thai",nativeName:"\u0e44\u0e17\u0e22"},tr:{name:"Turkish",nativeName:"T\u00fcrk\u00e7e"},uk:{name:"Ukrainian",nativeName:"\u0443\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0430"},ur:{name:"Urdu",nativeName:"\u0627\u0631\u062f\u0648"},uz:{name:"Uzbek",nativeName:"zbek"},vi:{name:"Vietnamese",
nativeName:"Ti\u1ebfng Vi\u1ec7t"},cy:{name:"Welsh",nativeName:"Cymraeg"},xh:{name:"Xhosa",nativeName:"isiXhosa"},yi:{name:"Yiddish",nativeName:"\u05d9\u05d9\u05b4\u05d3\u05d9\u05e9"},yo:{name:"Yoruba",nativeName:"Yor\u00f9b\u00e1"},za:{name:"Zhuang, Chuang",nativeName:"Sa\u026f cue\u014b\u0185"},zu:{name:"Zulu",nativeName:"isiZulu"}};

function $(selector) {
    return document.querySelector(selector);
}

function $all(selector) {
    return document.querySelectorAll(selector);
}

function isEmpty(obj) {
    return Object.keys(obj).length === 0;
}

function i18n() {
    $("#welcome").innerHTML = chrome.i18n.getMessage("options_welcome");
    $("#introduction").innerHTML = chrome.i18n.getMessage("options_introduction");
    //$("#languageselectheader").innerHTML = chrome.i18n.getMessage("options_languageselectheader");
    $("#otheroptionsheader").innerHTML = chrome.i18n.getMessage("options_otheroptionsheader");
    $("#varioustabs_label").innerHTML = chrome.i18n.getMessage("options_tabsoption_1");
    $("#uniquetab_label").innerHTML = chrome.i18n.getMessage("options_tabsoption_2");
    $("#panel_label").innerHTML = chrome.i18n.getMessage("options_tabsoption_3");
    $("#languages_add").innerHTML = chrome.i18n.getMessage("options_addlanguage_addbutton");
    $("#save").innerHTML = chrome.i18n.getMessage("options_savebutton");
    $("#credits").innerHTML = chrome.i18n.getMessage("options_credits");
    $("#credits_dialog h3").innerHTML = chrome.i18n.getMessage("options_credits");
    $("#languages_add_ok").innerHTML = chrome.i18n.getMessage("options_ok");
    $("#languages_add_cancel").innerHTML = chrome.i18n.getMessage("options_cancel");
    $("#credits_ok").innerHTML = chrome.i18n.getMessage("options_ok");
    $("#languages_add_dialog h3").innerHTML = chrome.i18n.getMessage("options_addlanguage");
    $("#language_label").innerHTML = chrome.i18n.getMessage("options_language_label");
}

function print_list_modal() {
    $("#select_language").innerHTML = "";
    var heysortable = sortable.toArray();
    for (var language in isoLangs) {
        if (!inArray(language, heysortable)) {
            var el = document.createElement('option');
            el.setAttribute('value', language);
            el.innerText = isoLangs[language]["name"]+" ("+isoLangs[language]["nativeName"]+")";
            $("#select_language").appendChild(el);
        }
    }
}

function init() {
    i18n();
    chrome.storage.sync.get(null, function(items) {
        // If no settings are set
        if (isEmpty(items)) {
            items = {'translateinto': {}, 'uniquetab': ''};
            chrome.storage.sync.set({'translateinto': {}, 'uniquetab': ''});
        }

        // Check the checkbox of the window opening
        if (items.uniquetab === "yep")
            $("#uniquetab").checked = true;
        if (items.uniquetab === "")
            $("#varioustabs").checked = true;
        if (items.uniquetab === "panel")
            $("#panel").checked = true;

        // Add event listeners for certain buttons and links
        $("#panelsflag").addEventListener('click', function() { event.preventDefault(); chrome.tabs.create({url: 'chrome://flags/#enable-panels'}); });
        $("#save").addEventListener('click', function() {
            save_options();
        });

        // Print selected language list
        var languages = items.translateinto;

        if (languages) {
            for (var language_id in languages) {
                var language = languages[language_id];
                var el = document.createElement('li');
                el.setAttribute('data-language', language);
                el.setAttribute('data-id', language);
                el.innerHTML = isoLangs[language]["name"]+" ("+isoLangs[language]["nativeName"]+")"+"<span data-language='"+language+"' class='delete'>x</span>";
                $("#languages").appendChild(el);
                $("#languages li[data-language="+language+"] .delete").addEventListener('click', function() {
                    $("#languages").removeChild($("li[data-language="+this.getAttribute("data-language")+"]"));
                    print_list_modal();
                });
            }
        }

        // Initiate Sortable
        sortable = new Sortable($("#languages"), {
            animation: 150
        });

        // Handling The Dialog
        $("#languages_add").addEventListener('click', function() { $("dialog#languages_add_dialog").showModal(); $("#select_language").focus(); });
        $("#languages_add_cancel").addEventListener('click', function() { $("dialog#languages_add_dialog").close(); });
        $("#languages_add_ok").addEventListener('click', function() {
            var el = document.createElement('li');
            var language = $("#select_language").value;
            if (inArray(language, sortable.toArray())) {
                return;
            }
            el.setAttribute('data-language', language);
            el.setAttribute('data-id', language);
            el.innerHTML = isoLangs[language]["name"]+" ("+isoLangs[language]["nativeName"]+")"+"<span data-language='"+language+"' class='delete'>x</span>";
            $("#languages").appendChild(el);
            var selection = $("#select_language option[value="+language+"]");
            selection.parentNode.removeChild(selection);
            $("#languages li[data-id="+language+"] .delete").addEventListener('click', function() {
                $("#languages").removeChild($("li[data-language="+this.getAttribute("data-language")+"]"));
                print_list_modal();
            });
            $("dialog").close();
        });

        // About credits...
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (xhr.readyState == 4 && xhr.status == 200) {
                var json = JSON.parse(xhr.responseText), printhtml = "";
                for (var item in json) {
                    printhtml += "<div>";
                    if (json[item].url) {
                        printhtml += "<a href='"+json[item].url+"' class='homepage' target='_blank'>"+chrome.i18n.getMessage("options_credits_homepage")+"</a>";
                    }
                    printhtml += "<h4>"+json[item].name+"</h4>";
                    if (json[item].author) {
                        printhtml += "<p class='author'>"+chrome.i18n.getMessage("options_credits_by")+" "+json[item].author;
                    }
                    if (json[item].license) {
                        printhtml += " – "+json[item].license+"</p>";
                    } else {
                        printhtml += "</p>";
                    }
                    printhtml += "</div>";
                }
                $("dialog#credits_dialog .content_area").innerHTML = printhtml;
                window.onhashchange = function() {
                    if (location.hash == "#credits") {
                        $("dialog#credits_dialog").showModal();
                        $("#credits_ok").focus();
                    }
                }
                if (location.hash == "#credits") {
                    $("dialog#credits_dialog").showModal();
                    $("#credits_ok").focus();
                }
                $("#credits_ok").addEventListener('click', function() { $("dialog#credits_dialog").close(); });
                $("dialog#credits_dialog").addEventListener('close', function() { history.pushState("", document.title, window.location.pathname + window.location.search); });
            }
        }
        xhr.open("GET", "json/credits.json", true);
        xhr.send();

        // Print language list in the modal dialog
        print_list_modal();
    });
}

function save_options() {
    var languages = document.getElementById("languages");
    var options = {"uniquetab": "", "translateinto": {}};

    options.uniquetab = radio_selected("uniquetab");

    var selected_languages = sortable.toArray();

    var i = 0;
    for (var language_id in selected_languages) {
        var language = selected_languages[language_id];
        options.translateinto[i] = language;
        i++;
    }

    chrome.storage.sync.set(options, function() {
        var background = chrome.extension.getBackgroundPage();

        background.translator_tab = false;
        background.translator_window = false;
        window.close();
    });

    // We don't need the following code because the background.js is already listening to changes in chrome.sync ;-) Yeeey!
    //chrome.extension.getBackgroundPage().createmenus(JSON.stringify(options));
}

function toObject(arr) {
    var rv = {};
    for (var i = 0; i < arr.length; ++i)
        if (arr[i] !== undefined) rv[i] = arr[i];
    return rv;
}

function radio_selected(a) {
    var elements = document.getElementsByName(a);

    for (var i=0; i<elements.length; i++)
        if (elements[i].checked) return elements[i].value;
}

function inArray(needle, haystack) {
    var length = haystack.length;
    for(var i = 0; i < length; i++) {
        if(haystack[i] == needle) return true;
    }
    return false;
}

window.addEventListener('load', init);