(function ($, document) {

    var pageSizeKey = 'people';

    var view = LibraryBrowser.getDefaultItemsView('Poster', 'Poster');

    var data = {};

    function getQuery() {

        var key = getSavedQueryKey();
        var pageData = data[key];

        if (!pageData) {
            pageData = data[key] = {
                query: {
                    SortBy: "SortName",
                    SortOrder: "Ascending",
                    Recursive: true,
                    Fields: "PrimaryImageAspectRatio,SortName,DateCreated,SyncInfo,ItemCounts",
                    StartIndex: 0,
                    ImageTypeLimit: 1,
                    EnableImageTypes: "Primary,Backdrop,Banner,Thumb",
                    Limit: LibraryBrowser.getDefaultPageSize()
                }
            };

            pageData.query.ParentId = LibraryMenu.getTopParentId();
            LibraryBrowser.loadSavedQueryValues(key, pageData.query);
        }
        return pageData.query;
    }

    function getSavedQueryKey() {

        return getWindowUrl();
    }

    function reloadItems(page) {

        Dashboard.showLoadingMsg();

        var query = getQuery();

        ApiClient.getAlbumArtists(Dashboard.getCurrentUserId(), query).done(function (result) {

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

            var html = '';
            var pagingHtml = LibraryBrowser.getQueryPagingHtml({
                startIndex: query.StartIndex,
                limit: query.Limit,
                totalRecordCount: result.TotalRecordCount,
                viewButton: true,
                showLimit: false,
                addSelectionButton: true,
                pageSizeKey: pageSizeKey
            });

            page.querySelector('.listTopPaging').innerHTML = pagingHtml;

            updateFilterControls(page);
            var trigger = false;

            if (view == "List") {

                html = LibraryBrowser.getListViewHtml({
                    items: result.Items,
                    context: 'music',
                    sortBy: query.SortBy
                });
                trigger = true;
            }
            else if (view == "Poster") {
                html = LibraryBrowser.getPosterViewHtml({
                    items: result.Items,
                    shape: "square",
                    context: 'music',
                    showTitle: true,
                    coverImage: true,
                    lazy: true,
                    centerText: true,
                    overlayPlayButton: true
                });
            }
            else if (view == "PosterCard") {

                html = LibraryBrowser.getPosterViewHtml({
                    items: result.Items,
                    shape: "square",
                    context: 'music',
                    showTitle: true,
                    coverImage: true,
                    lazy: true,
                    cardLayout: true,
                    showSongCount: true
                });
            }

            var elem = page.querySelector('#items');
            elem.innerHTML = html + pagingHtml;
            ImageLoader.lazyChildren(elem);

            if (trigger) {
                $(elem).trigger('create');
            }

            $('.btnNextPage', page).on('click', function () {
                query.StartIndex += query.Limit;
                reloadItems(page);
            });

            $('.btnPreviousPage', page).on('click', function () {
                query.StartIndex -= query.Limit;
                reloadItems(page);
            });

            LibraryBrowser.saveQueryValues(getSavedQueryKey(), query);
            LibraryBrowser.setLastRefreshed(page);
            Dashboard.hideLoadingMsg();
        });
    }

    function updateFilterControls(page) {

        var query = getQuery();

        $('.chkStandardFilter', page).each(function () {

            var filters = "," + (query.Filters || "");
            var filterName = this.getAttribute('data-filter');

            this.checked = filters.indexOf(',' + filterName) != -1;

        }).checkboxradio('refresh');

        $('#selectView', page).val(view).selectmenu('refresh');

        $('.alphabetPicker', page).alphaValue(query.NameStartsWithOrGreater);
        $('#selectPageSize', page).val(query.Limit).selectmenu('refresh');
    }

    var filtersLoaded;
    function reloadFiltersIfNeeded(page) {

        if (!filtersLoaded) {

            filtersLoaded = true;

            var query = getQuery();

            QueryFilters.loadFilters(page, Dashboard.getCurrentUserId(), query, function () {

                reloadItems(page);
            });
        }
    }

    $(document).on('pageinit', "#musicAlbumArtistsPage", function () {

        var page = this;

        $('.viewPanel', page).on('panelopen', function () {

            reloadFiltersIfNeeded(page);
        });

        $('.chkStandardFilter', this).on('change', function () {

            var query = getQuery();

            var filterName = this.getAttribute('data-filter');
            var filters = query.Filters || "";

            filters = (',' + filters).replace(',' + filterName, '').substring(1);

            if (this.checked) {
                filters = filters ? (filters + ',' + filterName) : filterName;
            }

            query.StartIndex = 0;
            query.Filters = filters;

            reloadItems(page);
        });

        $('.alphabetPicker', this).on('alphaselect', function (e, character) {

            var query = getQuery();

            query.NameStartsWithOrGreater = character;
            query.StartIndex = 0;

            reloadItems(page);

        }).on('alphaclear', function (e) {

            var query = getQuery();

            query.NameStartsWithOrGreater = '';

            reloadItems(page);
        });

        $('#selectView', this).on('change', function () {

            view = this.value;

            reloadItems(page);

            LibraryBrowser.saveViewSetting(getSavedQueryKey(), view);
        });

        $('#selectPageSize', page).on('change', function () {
            var query = getQuery();

            query.Limit = parseInt(this.value);
            query.StartIndex = 0;
            reloadItems(page);
        });

    }).on('pagebeforeshow', "#musicAlbumArtistsPage", function () {

        var page = this;
        var query = getQuery();

        QueryFilters.onPageShow(page, query);

        if (LibraryBrowser.needsRefresh(page)) {
            LibraryBrowser.getSavedViewSetting(getSavedQueryKey()).done(function (val) {

                if (val) {
                    $('#selectView', page).val(val).selectmenu('refresh').trigger('change');
                } else {
                    reloadItems(page);
                }
            });
        }

        updateFilterControls(this);
    });

})(jQuery, document);