function handleerror(xmldata) {
    if ($('error', xmldata).size()) {
        var msg = 'Es ist ein Fehler aufgetreten:\n';
        $('error', xmldata).find('errormsg').each(function(i) {
            msg += $(this).text();
        });
        alert(msg);
        return true;
    }
    return false;
    $('#content').show();
}

function updateDirectories(xmldata) {
    var dirname = $('dirname', xmldata).text();
    var groups = $('groups', xmldata).text();
    var filecount = $('filecount', xmldata).text();
    var filesize = $('filesize', xmldata).text();
    var maydelete = $('maydelete', xmldata).text();
    var htmltext = '<td>' + dirname + '</td><td>' + groups + '</td><td>' + filecount + ', ' + filesize + '</td><td><a id="edit' + dirname + '" class="editlink" href="#" title="Die Gruppenzuordnungen dieses Verzeichnisses bearbeiten"><img class="actionicon" src="images/groups.png" width="16" height="16" alt="Gruppen"/></a>';
    if (maydelete == '1') {
        htmltext = htmltext + '<a id="delete' + dirname + '" class="deletelink" href="#" title="Dieses Verzeichnis löschen"><img class="actionicon" src="images/delete.png" width="16" height="16" alt="löschen" /></a>';
    }
    htmltext = htmltext + '</td>';
    $('#dirtable').find('tr#dir' + dirname).empty().append(htmltext);
    if (!($('#dirtable').find('tr#dir' + dirname).size())) {
        var rows = $('#dirtable').find('tr');
        var inserted = false;
        for (var i = 0; !inserted && i < rows.length; i++) {
            if ($(rows[i]).find('td:first').text() > dirname) {
                $(rows[i]).before(
                    '<tr id="dir' + dirname + '">' + htmltext + '</tr>');
                inserted = true;
            }
        }
        if (!inserted) {
            $(rows[rows.length-1]).before(
                '<tr id="dir' + dirname + '">' + htmltext + '</tr>');
        }
    }
    $('#dirtable').find('tr#dir' + dirname).find('a.editlink').click(function() {
        editdirectory(this.id.substr(4));
    });
    $('#dirtable').find('tr#dir' + dirname).find('a.deletelink').click(function() {
        removedirectory(this.id.substr(6));
    });
}

function getDirectoryForm(title, dirname, groups) {
    return '<form action="#" id="dirform"><fieldset class="dynaform"><legend><img id="closer" src="images/x.png" width="16" height="16" alt="Schließen" /> ' + title + '</legend><div class="formelement"><label for="dirname">Verzeichnisname:</label><input type="text" name="dirname" id="input-dirname" value="' + dirname + '" /></div><div class="formelement"><label for="groups">Gruppen:</label><input type="text" name="groups" class="form-autocomplete" id="input-groups" value="' + groups + '" /><input type="hidden" class="autocomplete" id="input-groups-autocomplete" value="getgroups.php" /></div><div class="formactions"><input type="submit" name="submit" value="Absenden" /></div></div></fieldset></form>';
}

function displaydirectoryeditor(title, dirname, groups) {
    $('#content').hide();
    $('#direditor').hide().empty().append(getDirectoryForm(title, dirname,
                                                           groups)).show();
    DAV.autocompleteAutoAttach();
    $('#dirform').find('#input-dirname').focus();
    $('#closer').click(function() {
        $('#direditor').hide().empty();
        $('#content').show();
    });
    $('#dirform').submit(function() {
        if (!this.dirname.value.match(/^[a-zA-Z0-9 -_.]+$/)) {
            alert("Ungültiger Verzeichnisname.");
            this.dirname.focus();
            return false;
        }
        $.post(
            "/davadmin/directories.php",
            {method  : 'submitdirectory',
             dirname : this.dirname.value,
             groups  : this.groups.value},
            function(retval) {
                $('div#direditor').hide().empty();
                if (!handleerror(retval)) {
                    updateDirectories(retval);
                    $('#content').show();
                }
            });
        return false;
    });
}

function editdirectory(dirname) {
    $.get(
        "directories.php",
        {dirname : dirname,
         method  : 'getdirectorydata'},
        function(retval) {
            if (!handleerror(retval)) {
                var dirname, groups;
                dirname = $("dirname:first", retval).text();
                groups = $("groups:first", retval).text();
                displaydirectoryeditor("Verzeichnisdaten bearbeiten",
                                       dirname, groups);
            }
        });
}

function newdirectory() {
    displaydirectoryeditor('Neues Verzeichnis anlegen', '', '');
}

function deletedirectorydialog(dirname) {
    $("#direditor").hide().empty();
    var msg = 'Soll das Verzeichnis ' + dirname +
        ' wirklich gelöscht werden?';
    if (confirm(msg) == true) {
        $.post(
            "directories.php",
            {method  : 'deletedirectory',
             dirname : dirname},
            function(retval) {
                if (!handleerror(retval)) {
                    var dirname = $('dirname:first', retval).text();
                    $('#dirtable').find('tr#dir' + dirname).remove();
                }
            });
    }
}

function removedirectory(dirname) {
    $.get(
        "directories.php",
        {dirname : dirname,
         method  : 'getdirectorydata'},
        function(retval) {
            if (!handleerror(retval)) {
                var username, lastname, firstname;
                var dirname, groups;
                dirname = $("dirname:first", retval).text();
                deletedirectorydialog(dirname);
            }
        });
}

$(function() {
    $("a.editlink").each(function(i) {
        $(this).click(function() { editdirectory(this.id.substr(4)); });
    });
    $("a.newlink").each(function(i) {
        $(this).click(function() { newdirectory(); });
    });
    $("a.deletelink").each(function(i) {
        $(this).click(function() { removedirectory(this.id.substr(6)); });
    });
});