define(['events', 'libraryBrowser', 'imageLoader', 'alphaPicker'], function (events, libraryBrowser, imageLoader, alphaPicker) {

    return function (view, params, tabContent) {

        var self = this;
        var pageSize = libraryBrowser.getDefaultPageSize();

        var data = {};

        function getPageData(context) {
            var key = getSavedQueryKey(context);
            var pageData = data[key];

            if (!pageData) {
                pageData = data[key] = {
                    query: {
                        SortBy: "SortName",
                        SortOrder: "Ascending",
                        IncludeItemTypes: "BoxSet",
                        Recursive: true,
                        Fields: "PrimaryImageAspectRatio,SortName,SyncInfo",
                        ImageTypeLimit: 1,
                        EnableImageTypes: "Primary,Backdrop,Banner,Thumb",
                        StartIndex: 0,
                        Limit: pageSize
                    },
                    view: libraryBrowser.getSavedView(key) || libraryBrowser.getDefaultItemsView('Poster', 'Poster')
                };

                libraryBrowser.loadSavedQueryValues(key, pageData.query);
            }
            return pageData;
        }

        function getQuery(context) {

            return getPageData(context).query;
        }

        function getSavedQueryKey(context) {

            if (!context.savedQueryKey) {
                context.savedQueryKey = libraryBrowser.getSavedQueryKey('movies');
            }
            return context.savedQueryKey;
        }

        function reloadItems(page) {

            Dashboard.showLoadingMsg();

            var query = getQuery(page);

            ApiClient.getItems(Dashboard.getCurrentUserId(), query).then(function (result) {

                // Scroll back up so they can see the results from the beginning
                window.scrollTo(0, 0);

                updateFilterControls(page);

                var pagingHtml = LibraryBrowser.getQueryPagingHtml({
                    startIndex: query.StartIndex,
                    limit: query.Limit,
                    totalRecordCount: result.TotalRecordCount,
                    showLimit: false,
                    updatePageSizeSetting: false,
                    addLayoutButton: false,
                    sortButton: false,
                    filterButton: false
                });

                var html;
                var viewStyle = self.getCurrentViewStyle();

                if (viewStyle == "Thumb") {

                    html = libraryBrowser.getPosterViewHtml({
                        items: result.Items,
                        shape: "backdrop",
                        preferThumb: true,
                        context: 'movies',
                        lazy: true,
                        overlayPlayButton: true
                    });
                }
                else if (viewStyle == "ThumbCard") {

                    html = libraryBrowser.getPosterViewHtml({
                        items: result.Items,
                        shape: "backdrop",
                        preferThumb: true,
                        context: 'movies',
                        lazy: true,
                        cardLayout: true,
                        showTitle: true,
                        showItemCounts: true
                    });
                }
                else if (viewStyle == "Banner") {

                    html = libraryBrowser.getPosterViewHtml({
                        items: result.Items,
                        shape: "banner",
                        preferBanner: true,
                        context: 'movies',
                        lazy: true
                    });
                }
                else if (viewStyle == "List") {

                    html = libraryBrowser.getListViewHtml({
                        items: result.Items,
                        context: 'movies',
                        sortBy: query.SortBy
                    });
                }
                else if (viewStyle == "PosterCard") {

                    html = libraryBrowser.getPosterViewHtml({
                        items: result.Items,
                        shape: "portrait",
                        context: 'movies',
                        showTitle: true,
                        showYear: true,
                        lazy: true,
                        cardLayout: true,
                        showItemCounts: true
                    });
                }
                else {

                    // Poster
                    html = libraryBrowser.getPosterViewHtml({
                        items: result.Items,
                        shape: "portrait",
                        context: 'movies',
                        centerText: true,
                        lazy: true,
                        overlayPlayButton: true
                    });
                }

                var i, length;
                var elems = tabContent.querySelectorAll('.paging');
                for (i = 0, length = elems.length; i < length; i++) {
                    elems[i].innerHTML = pagingHtml;
                }

                function onNextPageClick() {
                    query.StartIndex += query.Limit;
                    reloadItems(tabContent);
                }

                function onPreviousPageClick() {
                    query.StartIndex -= query.Limit;
                    reloadItems(tabContent);
                }

                elems = tabContent.querySelectorAll('.btnNextPage');
                for (i = 0, length = elems.length; i < length; i++) {
                    elems[i].addEventListener('click', onNextPageClick);
                }

                elems = tabContent.querySelectorAll('.btnPreviousPage');
                for (i = 0, length = elems.length; i < length; i++) {
                    elems[i].addEventListener('click', onPreviousPageClick);
                }

                if (!result.Items.length) {
                    html = '<p style="text-align:center;">' + Globalize.translate('MessageNoCollectionsAvailable') + '</p>';
                }

                var itemsContainer = tabContent.querySelector('.itemsContainer');
                itemsContainer.innerHTML = html;
                imageLoader.lazyChildren(itemsContainer);

                libraryBrowser.saveQueryValues(getSavedQueryKey(page), query);

                Dashboard.hideLoadingMsg();
            });
        }

        function updateFilterControls(tabContent) {

            var query = getQuery(tabContent);
            self.alphaPicker.value(query.NameStartsWithOrGreater);
        }

        function initPage(tabContent) {

            var alphaPickerElement = tabContent.querySelector('.alphaPicker');
            alphaPickerElement.addEventListener('alphavaluechanged', function (e) {
                var newValue = e.detail.value;
                var query = getQuery(tabContent);
                query.NameStartsWithOrGreater = newValue;
                query.StartIndex = 0;
                reloadItems(tabContent);
            });

            self.alphaPicker = new alphaPicker({
                element: alphaPickerElement,
                valueChangeEvent: 'click'
            });

            tabContent.querySelector('.btnSort').addEventListener('click', function (e) {
                libraryBrowser.showSortMenu({
                    items: [{
                        name: Globalize.translate('OptionNameSort'),
                        id: 'SortName'
                    },
                    {
                        name: Globalize.translate('OptionImdbRating'),
                        id: 'CommunityRating,SortName'
                    },
                    {
                        name: Globalize.translate('OptionDateAdded'),
                        id: 'DateCreated,SortName'
                    },
                    {
                        name: Globalize.translate('OptionParentalRating'),
                        id: 'OfficialRating,SortName'
                    },
                    {
                        name: Globalize.translate('OptionReleaseDate'),
                        id: 'PremiereDate,SortName'
                    }],
                    callback: function () {
                        getQuery(tabContent).StartIndex = 0;
                        reloadItems(tabContent);
                    },
                    query: getQuery(tabContent),
                    button: e.target
                });
            });

            var btnSelectView = tabContent.querySelector('.btnSelectView');
            btnSelectView.addEventListener('click', function (e) {

                libraryBrowser.showLayoutMenu(e.target, self.getCurrentViewStyle(), 'List,Poster,PosterCard,Thumb,ThumbCard'.split(','));
            });

            btnSelectView.addEventListener('layoutchange', function (e) {

                var viewStyle = e.detail.viewStyle;

                getPageData(tabContent).view = viewStyle;
                libraryBrowser.saveViewSetting(getSavedQueryKey(tabContent), viewStyle);
                getQuery(tabContent).StartIndex = 0;
                reloadItems(tabContent);
            });

            // The button is created dynamically
            tabContent.querySelector('.btnNewCollection').addEventListener('click', function () {

                require(['collectionEditor'], function (collectionEditor) {

                    var serverId = ApiClient.serverInfo().Id;
                    new collectionEditor().show({
                        items: [],
                        serverId: serverId
                    });

                });
            });
        }

        self.getCurrentViewStyle = function () {
            return getPageData(tabContent).view;
        };

        initPage(tabContent);

        self.renderTab = function () {

            reloadItems(tabContent);
            updateFilterControls(tabContent);
        };

        self.destroy = function () {
        };
    };
});