var iframeHeight  = 0;
var sidebarHeight = 0;
var tabTemp;
var diffAppose = $.cookie.get('renderSideBySide') == 'true';

/* Close tab. */
window.closeTab = function(dom)
{
    const eleId    = $(dom).parent().attr('href');
    const tabsEle  = $(dom).parent().parent().parent();
    const isActive = $(dom).parent().hasClass('active');

    $(dom).parent().parent().remove();
    $(eleId).remove();
    $('#' + eleId.substring(5)).parent().removeClass('selected');
    if(isActive) tabsEle.children().last().find('a').trigger('click');
    if(!tabsEle.children().length) $('.monaco-dropmenu').addClass('hidden');

    const fileKey = eleId.substring(5).replace(/-/g, '=');
    $('li[z-key="' + fileKey + '"] .listitem').removeClass('selected');
}

$(function()
{
    setTimeout(function()
    {
        if(typeof currentFile == 'undefined') return;

        var fileAsId = currentFile.replace(/=/g, '-');
        /* Resize moaco height. */
        $('#monacoTree').css('height', getSidebarHeight() - 8 + 'px');
        /* Init tab template. */
        if(!tabTemp) tabTemp = $('#monacoTabs ul li').first().clone();

        /* Load default tab content. */
        var height = getIframeHeight();
        $.cookie.set('repoCodePath', file, {expires:config.cookieLife, path:config.webRoot});
        $('#tab-' + fileAsId).html("<iframe class='repo-iframe' src='" + $.createLink('repo', 'ajaxGetDiffEditorContent', urlParams.replace('%s', '')) + "' width='100%' height='" + height + "' scrolling='no'></iframe>")

        /* Select default tree item. */
        const currentElement = findItemInTreeItems(tree, fileAsId, 0);

        expandTree();
        if(currentElement != undefined) setTimeout(() =>
        {
            $('#' + currentElement.id).parent().addClass('selected');
        }, 100);

        $('.btn-left').on('click', function()  {arrowTabs('monacoTabs', 1);});
        $('.btn-right').on('click', function() {arrowTabs('monacoTabs', -2);});
    }, 300);
});

window.downloadCode = function()
{
    var url            = $(event.target).closest('.repoDownload-code').data('link');
    var activeFilePath = $('#monacoTabs .nav-item .active').attr('href').substring(5).replace(/-/g, '=');
    window.open(url.replace('{path}', activeFilePath), '_self');
    return;
}

/**
 *  Change code encoding.
 *
 * @param  string encoding
 * @access public
 * @return void
 */
function changeEncoding(encoding)
{
    $('#encoding').val(encoding);
    $('#encoding').parents('form').submit();
}

/**
 *  Html code decode.
 *
 * @param  string str
 * @access public
 * @return string
 */
function htmlspecialchars_decode(str){
    str = str.replace(/&amp;/g, '&');
    str = str.replace(/&lt;/g, '<');
    str = str.replace(/&gt;/g, '>');
    str = str.replace(/&quot;/g, "''");
    str = str.replace(/&#039;/g, "'");
    return str;
}

/**
 * Get diffs by file name.
 *
 * @param  string fileName
 * @access public
 * @return object
 */
window.getDiffs = function(fileName)
{
    if(fileName.indexOf('./') === 0) fileName = fileName.substring(2);

    var result = {
        'code': {'new': '', 'old': ''},
        'line': {'new': [], 'old': []}
    };

    const newContent = [];
    const oldContent = [];
    $.each(diffs, function(i, diff)
    {
        if(diff.fileName == fileName)
        {
            if(!diff.contents || typeof diff.contents[0].lines != 'object') return result;

            $.each(diff.contents, function(k, content)
            {
                var lines = content.lines;
                $.each(lines, function(l, code)
                {
                    if(code.type == 'all' || code.type == 'new')
                    {
                        newContent.push(htmlspecialchars_decode(code.line.substring(1)));
                        result.line.new.push(parseInt(code.newlc));
                    }

                    if(code.type == 'all' || code.type == 'old')
                    {
                        oldContent.push(htmlspecialchars_decode(code.line.substring(1)));
                        result.line.old.push(parseInt(code.oldlc));
                    }
                })
            })

            result.code.new = newContent.join('\n');
            result.code.old = oldContent.join('\n');
            return result;
        }
    });

    return result;
}

/**
 * 打开新tab。
 * Open new tab.
 *
 * @access public
 * @return void
 */
function openTab(entry, name)
{
    var eleId   = 'tab-' + entry.replace(/=/g, '-');
    var element = document.getElementById(eleId);
    if (element)
    {
        $("a[href='" + '#' + eleId + "']").trigger('click');
        return;
    }

    var newTab = tabTemp.clone();
    newTab.find('a').attr('href', '#' + eleId);
    newTab.find('span').text(name);
    $('#monacoTabs .nav-tabs').append(newTab);

    var height = getIframeHeight();
    $.cookie.set('repoCodePath', entry, {expires:config.cookieLife, path:config.webRoot});
    $('#monacoTabs .tab-content').append("<div id='" + eleId + "' class='tab-pane active in'><iframe class='repo-iframe' src='" + $.createLink('repo', 'ajaxGetDiffEditorContent', urlParams.replace('%s', '')) + "' width='100%' height='" + height + "' scrolling='no'></iframe></div>")

    if($('.monaco-dropmenu').attr('class').indexOf('hidden')) $('.monaco-dropmenu').removeClass('hidden');
    setTimeout(() => {
        $("a[href='" + '#' + eleId + "']").trigger('click');
        updateEditorInline('#' + eleId);
    }, 100);
}

function updateEditorInline(eleId)
{
    $.cookie.set('renderSideBySide', diffAppose, {expires:config.cookieLife, path:config.webRoot});
    if(typeof  $(eleId + ' iframe')[0].contentWindow.updateEditorInline == 'function')
    {
        $(eleId + ' iframe')[0].contentWindow.updateEditorInline(diffAppose);
    }
}

$('#monacoTabs .nav-item a').on('click', function()
{
    var eleId = $(this).attr('href');
    $(eleId + ' iframe')[0].contentWindow.updateEditorInline(diffAppose);
});

$(document).ready(function()
{
    if(diffAppose)
    {
        $('.dropdown-menu #inline').show();
        $('.dropdown-menu #appose').hide();
    }
    else
    {
        $('.dropdown-menu #appose').show();
        $('.dropdown-menu #inline').hide();
    }

    $('.btn-left').on('click', function()  {arrowTabs('monacoTabs', 1);});
    $('.btn-right').on('click', function() {arrowTabs('monacoTabs', -2);});
});

window.inlineAppose = function()
{
    $('.inline-appose').hide();
    diffAppose = !diffAppose;
    if(diffAppose)
    {
        $('.dropdown-menu #inline').show();
    }
    else
    {
        $('.dropdown-menu #appose').show();
    }
    var tabID = $('#monacoTabs .nav-item .active').attr('href');
    updateEditorInline(tabID);
    return;
}

window.changeDiff = function()
{
    var source = $('#oldRevision').val();
    var target = $('#newRevision').val();
    if(source && target)
    {
        $('#oldRevision').val(target);
        $('#newRevision').val(source);
        window.goDiff();
    }
}

/**
 * 在当前页面用modal加载链接。
 * Load link object page.
 *
 * @param  string $link
 * @access public
 * @return void
 */
window.loadLinkPage = function(link)
{
    $('#linkObject').attr('href', link);
    $('#linkObject').trigger('click');
}

$('body').off('click', '.dropmenu-tree .dropmenu-item').on('click', '.dropmenu-tree .dropmenu-item', function()
{
    var branchOrTag = $(this).find('.listitem').data('value');
    var url         = $(this).find('.listitem').data('url');
    if(url != 'javascript:;') return;

    var domID = $('#source button.dropmenu-btn').hasClass('focus') ? 'oldRevision' : 'newRevision';
    $('#' + domID).val(branchOrTag);
    $('#isBranchOrTag').val('1');

    $('.pick-container').empty();
    if(domID == 'oldRevision')
    {
        $('#source button.dropmenu-btn').removeClass('focus');
        $('#source button.dropmenu-btn .text').text(branchOrTag);
    }
    else
    {
        $('#target button.dropmenu-btn').removeClass('focus');
        $('#target button.dropmenu-btn .text').text(branchOrTag);
    }
})

/**
 * 触发diff检查。
 * Trigger diff.
 *
 * @access public
 * @return viod
 */
window.goDiff = function()
{
    var oldRevision   = $('#oldRevision').val();
    var newRevision   = $('#newRevision').val();
    var isBranchOrTag = $('#isBranchOrTag').val();
    if(!oldRevision || !newRevision)
    {
        (repo.SCM != 'Subversion') ? zui.Modal.alert(repoLang.error.needTwoVersion) : zui.Modal.alert(repoLang.error.emptyVersion);
        return false;
    }

    if(repo.SCM == 'Subversion')
    {
        var intRe = /^\d+$/;
        if((intRe.test(oldRevision) == false && oldRevision != '^') || (intRe.test(newRevision) == false && newRevision != '^'))
        {
            zui.Modal.alert(repoLang.error.versionError);
            return false;
        }
    }

    if(oldRevision == newRevision)
    {
        zui.Modal.alert(repoLang.error.differentVersions);
        return false;
    }

    if(isBranchOrTag == '1')
    {
        oldRevision = btoa(encodeURIComponent(oldRevision));
        newRevision = btoa(encodeURIComponent(newRevision));
    }

    var url = $.createLink('repo', 'diff', 'repoID=' + repo.id + '&objectID=' + objectID + '&entry=&oldRevision=' + oldRevision + '&newRevision=' +newRevision + '&showBug=0&encoding=&isBranchOrTag=' + isBranchOrTag);
    loadPage(url);
}