define(['browser', 'layoutManager', 'userSettings', 'inputManager', 'loading', 'cardBuilder', 'dom', 'apphost', 'imageLoader', 'libraryMenu', 'playbackManager', 'mainTabsManager', 'globalize', 'scrollStyles', 'emby-itemscontainer', 'emby-tabs', 'emby-button', 'flexStyles'], function (browser, layoutManager, userSettings, inputManager, loading, cardBuilder, dom, appHost, imageLoader, libraryMenu, playbackManager, mainTabsManager, globalize) {
    'use strict';

    function itemsPerRow() {
        var screenWidth = dom.getWindowSize().innerWidth;

        if (screenWidth >= 1920) {
            return 9;
        }

        if (screenWidth >= 1200) {
            return 12;
        }

        if (screenWidth >= 1000) {
            return 10;
        }

        return 8;
    }

    function enableScrollX() {
        return !layoutManager.desktop;
    }

    function getSquareShape() {
        return enableScrollX() ? 'overflowSquare' : 'square';
    }

    function loadLatest(page, parentId) {
        loading.show();
        var userId = ApiClient.getCurrentUserId();
        var options = {
            IncludeItemTypes: 'Audio',
            Limit: enableScrollX() ? 3 * itemsPerRow() : 2 * itemsPerRow(),
            Fields: 'PrimaryImageAspectRatio,BasicSyncInfo',
            ParentId: parentId,
            ImageTypeLimit: 1,
            EnableImageTypes: 'Primary,Backdrop,Banner,Thumb',
            EnableTotalRecordCount: false
        };
        ApiClient.getJSON(ApiClient.getUrl('Users/' + userId + '/Items/Latest', options)).then(function (items) {
            var elem = page.querySelector('#recentlyAddedSongs');
            var supportsImageAnalysis = appHost.supports('imageanalysis');
            supportsImageAnalysis = false;
            elem.innerHTML = cardBuilder.getCardsHtml({
                items: items,
                showUnplayedIndicator: false,
                showLatestItemsPopup: false,
                shape: getSquareShape(),
                showTitle: true,
                showParentTitle: true,
                lazy: true,
                centerText: !supportsImageAnalysis,
                overlayPlayButton: !supportsImageAnalysis,
                allowBottomPadding: !enableScrollX(),
                cardLayout: supportsImageAnalysis,
                coverImage: true
            });
            imageLoader.lazyChildren(elem);
            loading.hide();

            require(['autoFocuser'], function (autoFocuser) {
                autoFocuser.autoFocus(page);
            });
        });
    }

    function loadRecentlyPlayed(page, parentId) {
        var options = {
            SortBy: 'DatePlayed',
            SortOrder: 'Descending',
            IncludeItemTypes: 'Audio',
            Limit: itemsPerRow(),
            Recursive: true,
            Fields: 'PrimaryImageAspectRatio,AudioInfo',
            Filters: 'IsPlayed',
            ParentId: parentId,
            ImageTypeLimit: 1,
            EnableImageTypes: 'Primary,Backdrop,Banner,Thumb',
            EnableTotalRecordCount: false
        };
        ApiClient.getItems(ApiClient.getCurrentUserId(), options).then(function (result) {
            var elem = page.querySelector('#recentlyPlayed');

            if (result.Items.length) {
                elem.classList.remove('hide');
            } else {
                elem.classList.add('hide');
            }

            var itemsContainer = elem.querySelector('.itemsContainer');
            var supportsImageAnalysis = appHost.supports('imageanalysis');
            supportsImageAnalysis = false;
            itemsContainer.innerHTML = cardBuilder.getCardsHtml({
                items: result.Items,
                showUnplayedIndicator: false,
                shape: getSquareShape(),
                showTitle: true,
                showParentTitle: true,
                action: 'instantmix',
                lazy: true,
                centerText: !supportsImageAnalysis,
                overlayMoreButton: !supportsImageAnalysis,
                allowBottomPadding: !enableScrollX(),
                cardLayout: supportsImageAnalysis,
                coverImage: true
            });
            imageLoader.lazyChildren(itemsContainer);
        });
    }

    function loadFrequentlyPlayed(page, parentId) {
        var options = {
            SortBy: 'PlayCount',
            SortOrder: 'Descending',
            IncludeItemTypes: 'Audio',
            Limit: itemsPerRow(),
            Recursive: true,
            Fields: 'PrimaryImageAspectRatio,AudioInfo',
            Filters: 'IsPlayed',
            ParentId: parentId,
            ImageTypeLimit: 1,
            EnableImageTypes: 'Primary,Backdrop,Banner,Thumb',
            EnableTotalRecordCount: false
        };
        ApiClient.getItems(ApiClient.getCurrentUserId(), options).then(function (result) {
            var elem = page.querySelector('#topPlayed');

            if (result.Items.length) {
                elem.classList.remove('hide');
            } else {
                elem.classList.add('hide');
            }

            var itemsContainer = elem.querySelector('.itemsContainer');
            var supportsImageAnalysis = appHost.supports('imageanalysis');
            supportsImageAnalysis = false;
            itemsContainer.innerHTML = cardBuilder.getCardsHtml({
                items: result.Items,
                showUnplayedIndicator: false,
                shape: getSquareShape(),
                showTitle: true,
                showParentTitle: true,
                action: 'instantmix',
                lazy: true,
                centerText: !supportsImageAnalysis,
                overlayMoreButton: !supportsImageAnalysis,
                allowBottomPadding: !enableScrollX(),
                cardLayout: supportsImageAnalysis,
                coverImage: true
            });
            imageLoader.lazyChildren(itemsContainer);
        });
    }

    function loadSuggestionsTab(page, tabContent, parentId) {
        console.debug('loadSuggestionsTab');
        loadLatest(tabContent, parentId);
        loadRecentlyPlayed(tabContent, parentId);
        loadFrequentlyPlayed(tabContent, parentId);

        require(['components/favoriteitems'], function (favoriteItems) {
            favoriteItems.render(tabContent, ApiClient.getCurrentUserId(), parentId, ['favoriteArtists', 'favoriteAlbums', 'favoriteSongs']);
        });
    }

    function getTabs() {
        return [{
            name: globalize.translate('TabSuggestions')
        }, {
            name: globalize.translate('TabAlbums')
        }, {
            name: globalize.translate('TabAlbumArtists')
        }, {
            name: globalize.translate('TabArtists')
        }, {
            name: globalize.translate('TabPlaylists')
        }, {
            name: globalize.translate('TabSongs')
        }, {
            name: globalize.translate('TabGenres')
        }, {
            name: globalize.translate('ButtonSearch'),
            cssClass: 'searchTabButton'
        }];
    }

    function getDefaultTabIndex(folderId) {
        switch (userSettings.get('landing-' + folderId)) {
            case 'albums':
                return 1;

            case 'albumartists':
                return 2;

            case 'artists':
                return 3;

            case 'playlists':
                return 4;

            case 'songs':
                return 5;

            case 'genres':
                return 6;

            default:
                return 0;
        }
    }

    return function (view, params) {
        function reload() {
            loading.show();
            var tabContent = view.querySelector(".pageTabContent[data-index='0']");
            loadSuggestionsTab(view, tabContent, params.topParentId);
        }

        function enableScrollX() {
            return browser.mobile;
        }

        function setScrollClasses(elem, scrollX) {
            if (scrollX) {
                elem.classList.add('hiddenScrollX');

                if (layoutManager.tv) {
                    elem.classList.add('smoothScrollX');
                }

                elem.classList.add('scrollX');
                elem.classList.remove('vertical-wrap');
            } else {
                elem.classList.remove('hiddenScrollX');
                elem.classList.remove('smoothScrollX');
                elem.classList.remove('scrollX');
                elem.classList.add('vertical-wrap');
            }
        }

        function onBeforeTabChange(e) {
            preLoadTab(view, parseInt(e.detail.selectedTabIndex));
        }

        function onTabChange(e) {
            loadTab(view, parseInt(e.detail.selectedTabIndex));
        }

        function getTabContainers() {
            return view.querySelectorAll('.pageTabContent');
        }

        function initTabs() {
            mainTabsManager.setTabs(view, currentTabIndex, getTabs, getTabContainers, onBeforeTabChange, onTabChange);
        }

        function getTabController(page, index, callback) {
            var depends = [];

            switch (index) {
                case 0:
                    break;

                case 1:
                    depends.push('controllers/music/musicalbums');
                    break;

                case 2:
                case 3:
                    depends.push('controllers/music/musicartists');
                    break;

                case 4:
                    depends.push('controllers/music/musicplaylists');
                    break;

                case 5:
                    depends.push('controllers/music/songs');
                    break;

                case 6:
                    depends.push('controllers/music/musicgenres');
                    break;

                case 7:
                    depends.push('scripts/searchtab');
            }

            require(depends, function (controllerFactory) {
                var tabContent;

                if (0 == index) {
                    tabContent = view.querySelector(".pageTabContent[data-index='" + index + "']");
                    self.tabContent = tabContent;
                }

                var controller = tabControllers[index];

                if (!controller) {
                    tabContent = view.querySelector(".pageTabContent[data-index='" + index + "']");

                    if (index === 0) {
                        controller = self;
                    } else if (index === 7) {
                        controller = new controllerFactory(view, tabContent, {
                            collectionType: 'music',
                            parentId: params.topParentId
                        });
                    } else {
                        controller = new controllerFactory(view, params, tabContent);
                    }

                    if (index == 2) {
                        controller.mode = 'albumartists';
                    } else if (index == 3) {
                        controller.mode = 'artists';
                    }

                    tabControllers[index] = controller;
                    if (controller.initTab) {
                        controller.initTab();
                    }
                }

                callback(controller);
            });
        }

        function preLoadTab(page, index) {
            getTabController(page, index, function (controller) {
                if (renderedTabs.indexOf(index) == -1 && controller.preRender) {
                    controller.preRender();
                }
            });
        }

        function loadTab(page, index) {
            currentTabIndex = index;
            getTabController(page, index, function (controller) {
                initialTabIndex = null;

                if (renderedTabs.indexOf(index) == -1) {
                    renderedTabs.push(index);
                    controller.renderTab();
                }
            });
        }

        function onInputCommand(e) {
            switch (e.detail.command) {
                case 'search':
                    e.preventDefault();
                    Dashboard.navigate('search.html?collectionType=music&parentId=' + params.topParentId);
            }
        }

        var isViewRestored;
        var self = this;
        var currentTabIndex = parseInt(params.tab || getDefaultTabIndex(params.topParentId));
        var initialTabIndex = currentTabIndex;

        self.initTab = function () {
            var tabContent = view.querySelector(".pageTabContent[data-index='0']");
            var containers = tabContent.querySelectorAll('.itemsContainer');

            for (var i = 0, length = containers.length; i < length; i++) {
                setScrollClasses(containers[i], enableScrollX());
            }
        };

        self.renderTab = function () {
            reload();
        };

        var tabControllers = [];
        var renderedTabs = [];
        view.addEventListener('viewshow', function (e) {
            isViewRestored = e.detail.isRestored;
            initTabs();
            if (!view.getAttribute('data-title')) {
                var parentId = params.topParentId;

                if (parentId) {
                    ApiClient.getItem(ApiClient.getCurrentUserId(), parentId).then(function (item) {
                        view.setAttribute('data-title', item.Name);
                        libraryMenu.setTitle(item.Name);
                    });
                } else {
                    view.setAttribute('data-title', globalize.translate('TabMusic'));
                    libraryMenu.setTitle(globalize.translate('TabMusic'));
                }
            }

            inputManager.on(window, onInputCommand);
        });
        view.addEventListener('viewbeforehide', function (e) {
            inputManager.off(window, onInputCommand);
        });
        view.addEventListener('viewdestroy', function (e) {
            tabControllers.forEach(function (t) {
                if (t.destroy) {
                    t.destroy();
                }
            });
        });
    };
});
