define(['modules/templates/page'], function (Page) {
    var q = function (pages) {
        this.pages = pages || [];
        this.pageModules = [];
    };
    q.prototype.description = "Pages Module";
    q.prototype.version = "1.0.0.0";

    q.prototype.createContent = function () {
        var _this = this;
        var pagescontent = $('<div></div>');
        var ul = $('<ul class="tab_header" style="padding-top: 5px;"></ul>');
        pagescontent.append(ul);

        var addli = $('<li data-disabled="1" data-href="add"></li>');
        ul.append(addli);
        addli.append($('<span class="spanbtn iconadd"></span>'));
        addli.append($('<span>' + GetTextByKey("P_IPT_ADD", "Add") + '</span>'));
        addli.click(function () {
            addTab(null, true);
        });
        if (!templatereadonly && editable)
            addli.show();
        else
            addli.hide();
        ul.append($('<li style="clear: both;"></li>'));

        var tabIndex = 0;
        for (var i = 0; i < this.pages.length; i++) {
            var p = this.pages[i];
            addTab(p, false);
        }
        pagescontent.tab();//tab()会清掉addli的click事件

        function addTab(p, newadd) {
            if (!p) {
                p = {};
                _this.pages.push(p);
            }
            var tabName = 'tab_' + tabIndex++;

            var pm = new Page(p, _this);
            _this.pageModules.push(pm);
            var pagecontent = pm.createContent().attr('data-page', tabName);

            var li = $('<li></li>').attr('data-href', tabName);
            if (tabIndex == 1)
                li.addClass('selected');
            li.append($('<span></span>').text(p.Name || GetTextByKey("P_IPT_UNNAMED", 'Unnamed')));
            if (!templatereadonly && editable) {
                li.css('padding-right', 6);
                var btncopy = $('<span class="spanbtn iconcopy" style="margin-left:10px;padding-left:3px;padding-right:4px;"></span>');
                btncopy.click(function () {
                    var item = copyPage(pm.getPageValue(true, true));
                    _this.pages.push(item);
                    addTab(item, true);
                    return false;
                }).attr('title', GetTextByKey("P_IPT_COPYPAGE", 'Copy Page'));
                li.append(btncopy);
                var btndelete = $('<span class="spanbtn icondelete" style="padding-left:3px;"></span>');
                btndelete.click(function () {
                    showConfirm(GetTextByKey("P_IPT_AREYOUSUREYOUWANTTOREMOVETHISPAGE", 'Are you sure you want to remove this page?'), GetTextByKey("P_IPT_REMOVEPAGE", 'Remove Page'), function () {
                        var next = li.next();
                        if (next.is(addli))
                            next = li.prev();
                        next.click();

                        li.remove();
                        pagescontent.children('div[data-page="' + tabName + '"]').remove();
                        _this.pages.splice(_this.pages.indexOf(p), 1);
                        _this.pageModules.splice(_this.pageModules.indexOf(pm), 1);
                    });
                }).attr('title', GetTextByKey("P_IPT_DELETEPAGE", 'Delete Page'));
                li.append(btndelete);

                pm.onNameChanged = function (name) {
                    if (name && name != '')
                        li.children(":first").text(name);
                    else
                        li.children(":first").text(GetTextByKey("P_IPT_UNNAMED", 'Unnamed'));
                }
            }
            else
                addli.hide();

            binddrag(li, p);
            addli.before(li);
            if (newadd) {
                pagescontent.tab();
                li.click();
            }

            pagescontent.append(pagecontent);
        }

        var draggingtab = null;
        var draggingpage = null;
        function binddrag(li, p) {
            li.attr('draggable', true);
            li.bind('dragstart', function (e) {
                draggingtab = $(this);
                draggingpage = p;
            });
            li.bind('dragend', function (e) {
                draggingtab = null;
                draggingpage = null;
            });
            li.bind('dragover', function (e) {
                e.originalEvent.preventDefault()
            });
            li.bind('drop', function (e) {
                var t = $(this);
                if (t.is(draggingtab))
                    return;
                var t = $(this);
                var after = e.originalEvent.clientX > t.offset().left + t.width() / 2;
                if (after) {
                    t.after(draggingtab);
                    _this.pages.splice(_this.pages.indexOf(draggingpage), 1);
                    _this.pages.splice(_this.pages.indexOf(p) + 1, 0, draggingpage);
                }
                else {
                    t.before(draggingtab);
                    _this.pages.splice(_this.pages.indexOf(draggingpage), 1);
                    _this.pages.splice(_this.pages.indexOf(p), 0, draggingpage);
                }
            });
        }

        return pagescontent;
    };
    q.prototype.getPagesValue = function () {
        for (var i = 0; i < this.pageModules.length; i++) {
            var p = this.pageModules[i].getPageValue();//getPageValue直接收集数据到引用对象
            if (!p) return false;
        }
        return this.pages;
    }

    function copyPage(p) {
        var p = JSON.parse(JSON.stringify(p));
        p.Id = "";
        if (p.Sections) {
            for (var i = p.Sections.length - 1; i >= 0; i--) {
                var s = p.Sections[i];
                if (s.IsLink)
                    p.Sections.splice(i, 1);
            }
            for (var i = 0; i < p.Sections.length; i++) {
                var s = p.Sections[i];
                s.Id = "";
                if (s.Questions) {
                    for (var j = 0; j < s.Questions.length; j++) {
                        var q = s.Questions[j];
                        q.Id = "";
                    }
                }
            }
        }
        return p;
    }

    return q;
});