import layoutManager from '../layoutManager';
import focusManager from '../focusManager';
import globalize from '../../scripts/globalize';
import loading from '../loading/loading';
import { Events } from 'jellyfin-apiclient';
import homeSections from '../homesections/homesections';
import dom from '../../scripts/dom';
import '../listview/listview.css';
import '../../elements/emby-select/emby-select';
import '../../elements/emby-checkbox/emby-checkbox';
import ServerConnections from '../ServerConnections';

/* eslint-disable indent */

    const numConfigurableSections = 7;

    function renderViews(page, user, result) {
        let folderHtml = '';

        folderHtml += '<div class="checkboxList">';
        folderHtml += result.map(i => {
            let currentHtml = '';

            const id = `chkGroupFolder${i.Id}`;

            const isChecked = user.Configuration.GroupedFolders.includes(i.Id);

            const checkedHtml = isChecked ? ' checked="checked"' : '';

            currentHtml += '<label>';
            currentHtml += `<input type="checkbox" is="emby-checkbox" class="chkGroupFolder" data-folderid="${i.Id}" id="${id}"${checkedHtml}/>`;
            currentHtml += `<span>${i.Name}</span>`;
            currentHtml += '</label>';

            return currentHtml;
        }).join('');

        folderHtml += '</div>';

        page.querySelector('.folderGroupList').innerHTML = folderHtml;
    }

    function getLandingScreenOptions(type) {
        const list = [];

        if (type === 'movies') {
            list.push({
                name: globalize.translate('Movies'),
                value: 'movies',
                isDefault: true
            });
            list.push({
                name: globalize.translate('Suggestions'),
                value: 'suggestions'
            });
            list.push({
                name: globalize.translate('Genres'),
                value: 'genres'
            });
            list.push({
                name: globalize.translate('Favorites'),
                value: 'favorites'
            });
            list.push({
                name: globalize.translate('Collections'),
                value: 'collections'
            });
        } else if (type === 'tvshows') {
            list.push({
                name: globalize.translate('Shows'),
                value: 'shows',
                isDefault: true
            });
            list.push({
                name: globalize.translate('Suggestions'),
                value: 'suggestions'
            });
            list.push({
                name: globalize.translate('Upcoming'),
                value: 'upcoming'
            });
            list.push({
                name: globalize.translate('Genres'),
                value: 'genres'
            });
            list.push({
                name: globalize.translate('Networks'),
                value: 'networks'
            });
            list.push({
                name: globalize.translate('Episodes'),
                value: 'episodes'
            });
        } else if (type === 'music') {
            list.push({
                name: globalize.translate('Albums'),
                value: 'albums',
                isDefault: true
            });
            list.push({
                name: globalize.translate('Suggestions'),
                value: 'suggestions'
            });
            list.push({
                name: globalize.translate('HeaderAlbumArtists'),
                value: 'albumartists'
            });
            list.push({
                name: globalize.translate('Artists'),
                value: 'artists'
            });
            list.push({
                name: globalize.translate('Playlists'),
                value: 'playlists'
            });
            list.push({
                name: globalize.translate('Genres'),
                value: 'genres'
            });
        } else if (type === 'livetv') {
            list.push({
                name: globalize.translate('Suggestions'),
                value: 'suggestions',
                isDefault: true
            });
            list.push({
                name: globalize.translate('Guide'),
                value: 'guide'
            });
        }

        return list;
    }

    function getLandingScreenOptionsHtml(type, userValue) {
        return getLandingScreenOptions(type).map(o => {
            const selected = userValue === o.value || (o.isDefault && !userValue);
            const selectedHtml = selected ? ' selected' : '';
            const optionValue = o.isDefault ? '' : o.value;

            return `<option value="${optionValue}"${selectedHtml}>${o.name}</option>`;
        }).join('');
    }

    function renderViewOrder(context, user, result) {
        let html = '';

        html += result.Items.map((view) => {
            let currentHtml = '';

            currentHtml += `<div class="listItem viewItem" data-viewid="${view.Id}">`;

            currentHtml += '<span class="material-icons listItemIcon folder_open"></span>';

            currentHtml += '<div class="listItemBody">';

            currentHtml += '<div>';
            currentHtml += view.Name;
            currentHtml += '</div>';

            currentHtml += '</div>';

            currentHtml += `<button type="button" is="paper-icon-button-light" class="btnViewItemUp btnViewItemMove autoSize" title="${globalize.translate('Up')}"><span class="material-icons keyboard_arrow_up"></span></button>`;
            currentHtml += `<button type="button" is="paper-icon-button-light" class="btnViewItemDown btnViewItemMove autoSize" title="${globalize.translate('Down')}"><span class="material-icons keyboard_arrow_down"></span></button>`;

            currentHtml += '</div>';

            return currentHtml;
        }).join('');

        context.querySelector('.viewOrderList').innerHTML = html;
    }

    function updateHomeSectionValues(context, userSettings) {
        for (let i = 1; i <= 7; i++) {
            const select = context.querySelector(`#selectHomeSection${i}`);
            const defaultValue = homeSections.getDefaultSection(i - 1);

            const option = select.querySelector(`option[value=${defaultValue}]`) || select.querySelector('option[value=""]');

            const userValue = userSettings.get(`homesection${i - 1}`);

            option.value = '';

            if (userValue === defaultValue || !userValue) {
                select.value = '';
            } else {
                select.value = userValue;
            }
        }

        context.querySelector('.selectTVHomeScreen').value = userSettings.get('tvhome') || '';
    }

    function getPerLibrarySettingsHtml(item, user, userSettings, apiClient) {
        let html = '';

        let isChecked;

        if (item.Type === 'Channel' || item.CollectionType === 'boxsets' || item.CollectionType === 'playlists') {
            isChecked = !(user.Configuration.MyMediaExcludes || []).includes(item.Id);
            html += '<div>';
            html += '<label>';
            html += `<input type="checkbox" is="emby-checkbox" class="chkIncludeInMyMedia" data-folderid="${item.Id}"${isChecked ? ' checked="checked"' : ''}/>`;
            html += `<span>${globalize.translate('DisplayInMyMedia')}</span>`;
            html += '</label>';
            html += '</div>';
        }

        const excludeFromLatest = ['playlists', 'livetv', 'boxsets', 'channels'];
        if (!excludeFromLatest.includes(item.CollectionType || '')) {
            isChecked = !user.Configuration.LatestItemsExcludes.includes(item.Id);
            html += '<label class="fldIncludeInLatest">';
            html += `<input type="checkbox" is="emby-checkbox" class="chkIncludeInLatest" data-folderid="${item.Id}"${isChecked ? ' checked="checked"' : ''}/>`;
            html += `<span>${globalize.translate('DisplayInOtherHomeScreenSections')}</span>`;
            html += '</label>';
        }

        if (html) {
            html = `<div class="checkboxListContainer">${html}</div>`;
        }

        if (item.CollectionType === 'movies' || item.CollectionType === 'tvshows' || item.CollectionType === 'music' || item.CollectionType === 'livetv') {
            const idForLanding = item.CollectionType === 'livetv' ? item.CollectionType : item.Id;
            html += '<div class="selectContainer">';
            html += `<select is="emby-select" class="selectLanding" data-folderid="${idForLanding}" label="${globalize.translate('LabelDefaultScreen')}">`;

            const userValue = userSettings.get(`landing-${idForLanding}`);

            html += getLandingScreenOptionsHtml(item.CollectionType, userValue);

            html += '</select>';
            html += '</div>';
        }

        if (html) {
            let prefix = '';
            prefix += '<div class="verticalSection">';

            prefix += '<h2 class="sectionTitle">';
            prefix += item.Name;
            prefix += '</h2>';

            html = prefix + html;
            html += '</div>';
        }

        return html;
    }

    function renderPerLibrarySettings(context, user, userViews, userSettings, apiClient) {
        const elem = context.querySelector('.perLibrarySettings');
        let html = '';

        for (let i = 0, length = userViews.length; i < length; i++) {
            html += getPerLibrarySettingsHtml(userViews[i], user, userSettings, apiClient);
        }

        elem.innerHTML = html;
    }

    function loadForm(context, user, userSettings, apiClient) {
        context.querySelector('.chkHidePlayedFromLatest').checked = user.Configuration.HidePlayedInLatest || false;

        updateHomeSectionValues(context, userSettings);

        const promise1 = apiClient.getUserViews({ IncludeHidden: true }, user.Id);
        const promise2 = apiClient.getJSON(apiClient.getUrl(`Users/${user.Id}/GroupingOptions`));

        Promise.all([promise1, promise2]).then(responses => {
            renderViewOrder(context, user, responses[0]);

            renderPerLibrarySettings(context, user, responses[0].Items, userSettings, apiClient);

            renderViews(context, user, responses[1]);

            loading.hide();
        });
    }

    function onSectionOrderListClick(e) {
        const target = dom.parentWithClass(e.target, 'btnViewItemMove');

        if (target) {
            const viewItem = dom.parentWithClass(target, 'viewItem');

            if (viewItem) {
                if (target.classList.contains('btnViewItemDown')) {
                    const next = viewItem.nextSibling;

                    if (next) {
                        viewItem.parentNode.removeChild(viewItem);
                        next.parentNode.insertBefore(viewItem, next.nextSibling);
                        focusManager.focus(e.target);
                    }
                } else {
                    const prev = viewItem.previousSibling;

                    if (prev) {
                        viewItem.parentNode.removeChild(viewItem);
                        prev.parentNode.insertBefore(viewItem, prev);
                        focusManager.focus(e.target);
                    }
                }
            }
        }
    }

    function getCheckboxItems(selector, context, isChecked) {
        const inputs = context.querySelectorAll(selector);
        const list = [];

        for (let i = 0, length = inputs.length; i < length; i++) {
            if (inputs[i].checked === isChecked) {
                list.push(inputs[i]);
            }
        }

        return list;
    }

    function saveUser(context, user, userSettingsInstance, apiClient) {
        user.Configuration.HidePlayedInLatest = context.querySelector('.chkHidePlayedFromLatest').checked;

        user.Configuration.LatestItemsExcludes = getCheckboxItems('.chkIncludeInLatest', context, false).map(i => {
            return i.getAttribute('data-folderid');
        });

        user.Configuration.MyMediaExcludes = getCheckboxItems('.chkIncludeInMyMedia', context, false).map(i => {
            return i.getAttribute('data-folderid');
        });

        user.Configuration.GroupedFolders = getCheckboxItems('.chkGroupFolder', context, true).map(i => {
            return i.getAttribute('data-folderid');
        });

        const viewItems = context.querySelectorAll('.viewItem');
        const orderedViews = [];
        let i;
        let length;
        for (i = 0, length = viewItems.length; i < length; i++) {
            orderedViews.push(viewItems[i].getAttribute('data-viewid'));
        }

        user.Configuration.OrderedViews = orderedViews;

        userSettingsInstance.set('tvhome', context.querySelector('.selectTVHomeScreen').value);

        userSettingsInstance.set('homesection0', context.querySelector('#selectHomeSection1').value);
        userSettingsInstance.set('homesection1', context.querySelector('#selectHomeSection2').value);
        userSettingsInstance.set('homesection2', context.querySelector('#selectHomeSection3').value);
        userSettingsInstance.set('homesection3', context.querySelector('#selectHomeSection4').value);
        userSettingsInstance.set('homesection4', context.querySelector('#selectHomeSection5').value);
        userSettingsInstance.set('homesection5', context.querySelector('#selectHomeSection6').value);
        userSettingsInstance.set('homesection6', context.querySelector('#selectHomeSection7').value);

        const selectLandings = context.querySelectorAll('.selectLanding');
        for (i = 0, length = selectLandings.length; i < length; i++) {
            const selectLanding = selectLandings[i];
            userSettingsInstance.set(`landing-${selectLanding.getAttribute('data-folderid')}`, selectLanding.value);
        }

        return apiClient.updateUserConfiguration(user.Id, user.Configuration);
    }

    function save(instance, context, userId, userSettings, apiClient, enableSaveConfirmation) {
        loading.show();

        apiClient.getUser(userId).then(user => {
            saveUser(context, user, userSettings, apiClient).then(() => {
                loading.hide();
                if (enableSaveConfirmation) {
                    import('../toast/toast').then((toast) => {
                        toast(globalize.translate('SettingsSaved'));
                    });
                }

                Events.trigger(instance, 'saved');
            }, () => {
                loading.hide();
            });
        });
    }

    function onSubmit(e) {
        const self = this;
        const apiClient = ServerConnections.getApiClient(self.options.serverId);
        const userId = self.options.userId;
        const userSettings = self.options.userSettings;

        userSettings.setUserInfo(userId, apiClient).then(() => {
            const enableSaveConfirmation = self.options.enableSaveConfirmation;
            save(self, self.options.element, userId, userSettings, apiClient, enableSaveConfirmation);
        });

        // Disable default form submission
        if (e) {
            e.preventDefault();
        }
        return false;
    }

    function onChange(e) {
        const chkIncludeInMyMedia = dom.parentWithClass(e.target, 'chkIncludeInMyMedia');
        if (!chkIncludeInMyMedia) {
            return;
        }

        const section = dom.parentWithClass(chkIncludeInMyMedia, 'verticalSection');
        const fldIncludeInLatest = section.querySelector('.fldIncludeInLatest');
        if (fldIncludeInLatest) {
            if (chkIncludeInMyMedia.checked) {
                fldIncludeInLatest.classList.remove('hide');
            } else {
                fldIncludeInLatest.classList.add('hide');
            }
        }
    }

    function embed(options, self) {
        return import('./homeScreenSettings.template.html').then(({default: template}) => {
            for (let i = 1; i <= numConfigurableSections; i++) {
                template = template.replace(`{section${i}label}`, globalize.translate('LabelHomeScreenSectionValue', i));
            }

            options.element.innerHTML = globalize.translateHtml(template, 'core');

            options.element.querySelector('.viewOrderList').addEventListener('click', onSectionOrderListClick);
            options.element.querySelector('form').addEventListener('submit', onSubmit.bind(self));
            options.element.addEventListener('change', onChange);

            if (options.enableSaveButton) {
                options.element.querySelector('.btnSave').classList.remove('hide');
            }

            if (layoutManager.tv) {
                options.element.querySelector('.selectTVHomeScreenContainer').classList.remove('hide');
            } else {
                options.element.querySelector('.selectTVHomeScreenContainer').classList.add('hide');
            }

            self.loadData(options.autoFocus);
        });
    }

    class HomeScreenSettings {
        constructor(options) {
            this.options = options;
            embed(options, this);
        }

        loadData(autoFocus) {
            const self = this;
            const context = self.options.element;

            loading.show();

            const userId = self.options.userId;
            const apiClient = ServerConnections.getApiClient(self.options.serverId);
            const userSettings = self.options.userSettings;

            apiClient.getUser(userId).then(user => {
                userSettings.setUserInfo(userId, apiClient).then(() => {
                    self.dataLoaded = true;

                    loadForm(context, user, userSettings, apiClient);

                    if (autoFocus) {
                        focusManager.autoFocus(context);
                    }
                });
            });
        }

        submit() {
            onSubmit.call(this);
        }

        destroy() {
            this.options = null;
        }
    }

/* eslint-enable indent */

export default HomeScreenSettings;