/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017, 2018 Vector Creations Ltd

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

'use strict';
import SettingsStore from "../../../settings/SettingsStore";

const React = require("react");
const ReactDOM = require("react-dom");
import PropTypes from 'prop-types';
import { _t } from '../../../languageHandler';
const MatrixClientPeg = require("../../../MatrixClientPeg");
const CallHandler = require('../../../CallHandler');
const dis = require("../../../dispatcher");
const sdk = require('../../../index');
const rate_limited_func = require('../../../ratelimitedfunc');
import * as Rooms from '../../../Rooms';
import DMRoomMap from '../../../utils/DMRoomMap';
const Receipt = require('../../../utils/Receipt');
import TagOrderStore from '../../../stores/TagOrderStore';
import RoomListStore from '../../../stores/RoomListStore';
import GroupStore from '../../../stores/GroupStore';

const HIDE_CONFERENCE_CHANS = true;
const STANDARD_TAGS_REGEX = /^(m\.(favourite|lowpriority|server_notice)|im\.vector\.fake\.(invite|recent|direct|archived))$/;

function labelForTagName(tagName) {
    if (tagName.startsWith('u.')) return tagName.slice(2);
    return tagName;
}

function phraseForSection(section) {
    switch (section) {
        case 'm.favourite':
            return _t('Drop here to favourite');
        case 'im.vector.fake.direct':
            return _t('Drop here to tag direct chat');
        case 'im.vector.fake.recent':
            return _t('Drop here to restore');
        case 'm.lowpriority':
            return _t('Drop here to demote');
        default:
            return _t('Drop here to tag %(section)s', {section: section});
    }
}

module.exports = React.createClass({
    displayName: 'RoomList',

    propTypes: {
        ConferenceHandler: PropTypes.any,
        collapsed: PropTypes.bool.isRequired,
        searchFilter: PropTypes.string,
    },

    getInitialState: function() {
        return {
            isLoadingLeftRooms: false,
            totalRoomCount: null,
            lists: {},
            incomingCall: null,
            selectedTags: [],
        };
    },

    componentWillMount: function() {
        this.mounted = false;

        const cli = MatrixClientPeg.get();

        cli.on("Room", this.onRoom);
        cli.on("deleteRoom", this.onDeleteRoom);
        cli.on("Room.receipt", this.onRoomReceipt);
        cli.on("RoomMember.name", this.onRoomMemberName);
        cli.on("Event.decrypted", this.onEventDecrypted);
        cli.on("accountData", this.onAccountData);
        cli.on("Group.myMembership", this._onGroupMyMembership);

        const dmRoomMap = DMRoomMap.shared();
        // A map between tags which are group IDs and the room IDs of rooms that should be kept
        // in the room list when filtering by that tag.
        this._visibleRoomsForGroup = {
            // $groupId: [$roomId1, $roomId2, ...],
        };
        // All rooms that should be kept in the room list when filtering.
        // By default, show all rooms.
        this._visibleRooms = MatrixClientPeg.get().getRooms();

        // Listen to updates to group data. RoomList cares about members and rooms in order
        // to filter the room list when group tags are selected.
        this._groupStoreToken = GroupStore.registerListener(null, () => {
            (TagOrderStore.getOrderedTags() || []).forEach((tag) => {
                if (tag[0] !== '+') {
                    return;
                }
                // This group's rooms or members may have updated, update rooms for its tag
                this.updateVisibleRoomsForTag(dmRoomMap, tag);
                this.updateVisibleRooms();
            });
        });

        this._tagStoreToken = TagOrderStore.addListener(() => {
            // Filters themselves have changed
            this.updateVisibleRooms();
        });

        this._roomListStoreToken = RoomListStore.addListener(() => {
            this._delayedRefreshRoomList();
        });

        this.refreshRoomList();

        // order of the sublists
        //this.listOrder = [];

        // loop count to stop a stack overflow if the user keeps waggling the
        // mouse for >30s in a row, or if running under mocha
        this._delayedRefreshRoomListLoopCount = 0;
    },

    componentDidMount: function() {
        this.dispatcherRef = dis.register(this.onAction);
        // Initialise the stickyHeaders when the component is created
        this._updateStickyHeaders(true);

        this.mounted = true;
    },

    componentDidUpdate: function() {
        // Reinitialise the stickyHeaders when the component is updated
        this._updateStickyHeaders(true);
        this._repositionIncomingCallBox(undefined, false);
    },

    onAction: function(payload) {
        switch (payload.action) {
            case 'view_tooltip':
                this.tooltip = payload.tooltip;
                break;
            case 'call_state':
                var call = CallHandler.getCall(payload.room_id);
                if (call && call.call_state === 'ringing') {
                    this.setState({
                        incomingCall: call,
                    });
                    this._repositionIncomingCallBox(undefined, true);
                } else {
                    this.setState({
                        incomingCall: null,
                    });
                }
                break;
        }
    },

    componentWillUnmount: function() {
        this.mounted = false;

        dis.unregister(this.dispatcherRef);
        if (MatrixClientPeg.get()) {
            MatrixClientPeg.get().removeListener("Room", this.onRoom);
            MatrixClientPeg.get().removeListener("deleteRoom", this.onDeleteRoom);
            MatrixClientPeg.get().removeListener("Room.receipt", this.onRoomReceipt);
            MatrixClientPeg.get().removeListener("RoomMember.name", this.onRoomMemberName);
            MatrixClientPeg.get().removeListener("Event.decrypted", this.onEventDecrypted);
            MatrixClientPeg.get().removeListener("accountData", this.onAccountData);
            MatrixClientPeg.get().removeListener("Group.myMembership", this._onGroupMyMembership);
        }

        if (this._tagStoreToken) {
            this._tagStoreToken.remove();
        }

        if (this._roomListStoreToken) {
            this._roomListStoreToken.remove();
        }

        // NB: GroupStore is not a Flux.Store
        if (this._groupStoreToken) {
            this._groupStoreToken.unregister();
        }

        // cancel any pending calls to the rate_limited_funcs
        this._delayedRefreshRoomList.cancelPendingCall();
    },

    onRoom: function(room) {
        this.updateVisibleRooms();
    },

    onDeleteRoom: function(roomId) {
        this.updateVisibleRooms();
    },

    onArchivedHeaderClick: function(isHidden, scrollToPosition) {
        if (!isHidden) {
            const self = this;
            this.setState({ isLoadingLeftRooms: true });

            // Try scrolling to position
            this._updateStickyHeaders(true, scrollToPosition);

            // we don't care about the response since it comes down via "Room"
            // events.
            MatrixClientPeg.get().syncLeftRooms().catch(function(err) {
                console.error("Failed to sync left rooms: %s", err);
                console.error(err);
            }).finally(function() {
                self.setState({ isLoadingLeftRooms: false });
            });
        }
    },

    onSubListHeaderClick: function(isHidden, scrollToPosition) {
        // The scroll area has expanded or contracted, so re-calculate sticky headers positions
        this._updateStickyHeaders(true, scrollToPosition);
    },

    onRoomReceipt: function(receiptEvent, room) {
        // because if we read a notification, it will affect notification count
        // only bother updating if there's a receipt from us
        if (Receipt.findReadReceiptFromUserId(receiptEvent, MatrixClientPeg.get().credentials.userId)) {
            this._delayedRefreshRoomList();
        }
    },

    onRoomMemberName: function(ev, member) {
        this._delayedRefreshRoomList();
    },

    onEventDecrypted: function(ev) {
        // An event being decrypted may mean we need to re-order the room list
        this._delayedRefreshRoomList();
    },

    onAccountData: function(ev) {
        if (ev.getType() == 'm.direct') {
            this._delayedRefreshRoomList();
        }
    },

    _onGroupMyMembership: function(group) {
        this.forceUpdate();
    },

    _delayedRefreshRoomList: new rate_limited_func(function() {
        this.refreshRoomList();
    }, 500),

    // Update which rooms and users should appear in RoomList for a given group tag
    updateVisibleRoomsForTag: function(dmRoomMap, tag) {
        if (!this.mounted) return;
        // For now, only handle group tags
        if (tag[0] !== '+') return;

        this._visibleRoomsForGroup[tag] = [];
        GroupStore.getGroupRooms(tag).forEach((room) => this._visibleRoomsForGroup[tag].push(room.roomId));
        GroupStore.getGroupMembers(tag).forEach((member) => {
            if (member.userId === MatrixClientPeg.get().credentials.userId) return;
            dmRoomMap.getDMRoomsForUserId(member.userId).forEach(
                (roomId) => this._visibleRoomsForGroup[tag].push(roomId),
            );
        });
        // TODO: Check if room has been tagged to the group by the user
    },

    // Update which rooms and users should appear according to which tags are selected
    updateVisibleRooms: function() {
        const selectedTags = TagOrderStore.getSelectedTags();
        const visibleGroupRooms = [];
        selectedTags.forEach((tag) => {
            (this._visibleRoomsForGroup[tag] || []).forEach(
                (roomId) => visibleGroupRooms.push(roomId),
            );
        });

        // If there are any tags selected, constrain the rooms listed to the
        // visible rooms as determined by visibleGroupRooms. Here, we
        // de-duplicate and filter out rooms that the client doesn't know
        // about (hence the Set and the null-guard on `room`).
        if (selectedTags.length > 0) {
            const roomSet = new Set();
            visibleGroupRooms.forEach((roomId) => {
                const room = MatrixClientPeg.get().getRoom(roomId);
                if (room) {
                    roomSet.add(room);
                }
            });
            this._visibleRooms = Array.from(roomSet);
        } else {
            // Show all rooms
            this._visibleRooms = MatrixClientPeg.get().getRooms();
        }
        this._delayedRefreshRoomList();
    },

    refreshRoomList: function() {
        // TODO: ideally we'd calculate this once at start, and then maintain
        // any changes to it incrementally, updating the appropriate sublists
        // as needed.
        // Alternatively we'd do something magical with Immutable.js or similar.
        const lists = this.getRoomLists();
        let totalRooms = 0;
        for (const l of Object.values(lists)) {
            totalRooms += l.length;
        }
        this.setState({
            lists,
            totalRoomCount: totalRooms,
            // Do this here so as to not render every time the selected tags
            // themselves change.
            selectedTags: TagOrderStore.getSelectedTags(),
        });

        // this._lastRefreshRoomListTs = Date.now();
    },

    getRoomLists: function() {
        const lists = RoomListStore.getRoomLists();

        const filteredLists = {};

        const isRoomVisible = {
            // $roomId: true,
        };

        this._visibleRooms.forEach((r) => {
            isRoomVisible[r.roomId] = true;
        });

        Object.keys(lists).forEach((tagName) => {
            const filteredRooms = lists[tagName].filter((taggedRoom) => {
                // Somewhat impossible, but guard against it anyway
                if (!taggedRoom) {
                    return;
                }
                const myUserId = MatrixClientPeg.get().getUserId();
                if (HIDE_CONFERENCE_CHANS && Rooms.isConfCallRoom(taggedRoom, myUserId, this.props.ConferenceHandler)) {
                    return;
                }

                return Boolean(isRoomVisible[taggedRoom.roomId]);
            });

            if (filteredRooms.length > 0 || tagName.match(STANDARD_TAGS_REGEX)) {
                filteredLists[tagName] = filteredRooms;
            }
        });

        return filteredLists;
    },

    _getScrollNode: function() {
        if (!this.mounted) return null;
        const panel = ReactDOM.findDOMNode(this);
        if (!panel) return null;

        if (panel.classList.contains('gm-prevented')) {
            return panel;
        } else {
            return panel.children[2]; // XXX: Fragile!
        }
    },

    _whenScrolling: function(e) {
        this._hideTooltip(e);
        this._repositionIncomingCallBox(e, false);
        this._updateStickyHeaders(false);
    },

    _hideTooltip: function(e) {
        // Hide tooltip when scrolling, as we'll no longer be over the one we were on
        if (this.tooltip && this.tooltip.style.display !== "none") {
            this.tooltip.style.display = "none";
        }
    },

    _repositionIncomingCallBox: function(e, firstTime) {
        const incomingCallBox = document.getElementById("incomingCallBox");
        if (incomingCallBox && incomingCallBox.parentElement) {
            const scrollArea = this._getScrollNode();
            if (!scrollArea) return;
            // Use the offset of the top of the scroll area from the window
            // as this is used to calculate the CSS fixed top position for the stickies
            const scrollAreaOffset = scrollArea.getBoundingClientRect().top + window.pageYOffset;
            // Use the offset of the top of the component from the window
            // as this is used to calculate the CSS fixed top position for the stickies
            const scrollAreaHeight = ReactDOM.findDOMNode(this).getBoundingClientRect().height;

            let top = (incomingCallBox.parentElement.getBoundingClientRect().top + window.pageYOffset);
            // Make sure we don't go too far up, if the headers aren't sticky
            top = (top < scrollAreaOffset) ? scrollAreaOffset : top;
            // make sure we don't go too far down, if the headers aren't sticky
            const bottomMargin = scrollAreaOffset + (scrollAreaHeight - 45);
            top = (top > bottomMargin) ? bottomMargin : top;

            incomingCallBox.style.top = top + "px";
            incomingCallBox.style.left = scrollArea.offsetLeft + scrollArea.offsetWidth + 12 + "px";
        }
    },

    // Doing the sticky headers as raw DOM, for speed, as it gets very stuttery if done
    // properly through React
    _initAndPositionStickyHeaders: function(initialise, scrollToPosition) {
        const scrollArea = this._getScrollNode();
        if (!scrollArea) return;
        // Use the offset of the top of the scroll area from the window
        // as this is used to calculate the CSS fixed top position for the stickies
        const scrollAreaOffset = scrollArea.getBoundingClientRect().top + window.pageYOffset;
        // Use the offset of the top of the componet from the window
        // as this is used to calculate the CSS fixed top position for the stickies
        const scrollAreaHeight = ReactDOM.findDOMNode(this).getBoundingClientRect().height;

        if (initialise) {
            // Get a collection of sticky header containers references
            this.stickies = document.getElementsByClassName("mx_RoomSubList_labelContainer");

            if (!this.stickies.length) return;

            // Make sure there is sufficient space to do sticky headers: 120px plus all the sticky headers
            this.scrollAreaSufficient = (120 + (this.stickies[0].getBoundingClientRect().height * this.stickies.length)) < scrollAreaHeight;

            // Initialise the sticky headers
            if (typeof this.stickies === "object" && this.stickies.length > 0) {
                // Initialise the sticky headers
                Array.prototype.forEach.call(this.stickies, function(sticky, i) {
                    // Save the positions of all the stickies within scroll area.
                    // These positions are relative to the LHS Panel top
                    sticky.dataset.originalPosition = sticky.offsetTop - scrollArea.offsetTop;

                    // Save and set the sticky heights
                    const originalHeight = sticky.getBoundingClientRect().height;
                    sticky.dataset.originalHeight = originalHeight;
                    sticky.style.height = originalHeight;

                    return sticky;
                });
            }
        }

        if (!this.stickies) return;

        const self = this;
        let scrollStuckOffset = 0;
        // Scroll to the passed in position, i.e. a header was clicked and in a scroll to state
        // rather than a collapsable one (see RoomSubList.isCollapsableOnClick method for details)
        if (scrollToPosition !== undefined) {
            scrollArea.scrollTop = scrollToPosition;
        }
        // Stick headers to top and bottom, or free them
        Array.prototype.forEach.call(this.stickies, function(sticky, i, stickyWrappers) {
            const stickyPosition = sticky.dataset.originalPosition;
            const stickyHeight = sticky.dataset.originalHeight;
            const stickyHeader = sticky.childNodes[0];
            const topStuckHeight = stickyHeight * i;
            const bottomStuckHeight = stickyHeight * (stickyWrappers.length - i);

            if (self.scrollAreaSufficient && stickyPosition < (scrollArea.scrollTop + topStuckHeight)) {
                // Top stickies
                sticky.dataset.stuck = "top";
                stickyHeader.classList.add("mx_RoomSubList_fixed");
                stickyHeader.style.top = scrollAreaOffset + topStuckHeight + "px";
                // If stuck at top adjust the scroll back down to take account of all the stuck headers
                if (scrollToPosition !== undefined && stickyPosition === scrollToPosition) {
                    scrollStuckOffset = topStuckHeight;
                }
            } else if (self.scrollAreaSufficient && stickyPosition > ((scrollArea.scrollTop + scrollAreaHeight) - bottomStuckHeight)) {
                /// Bottom stickies
                sticky.dataset.stuck = "bottom";
                stickyHeader.classList.add("mx_RoomSubList_fixed");
                stickyHeader.style.top = (scrollAreaOffset + scrollAreaHeight) - bottomStuckHeight + "px";
            } else {
                // Not sticky
                sticky.dataset.stuck = "none";
                stickyHeader.classList.remove("mx_RoomSubList_fixed");
                stickyHeader.style.top = null;
            }
        });
        // Adjust the scroll to take account of top stuck headers
        if (scrollToPosition !== undefined) {
            scrollArea.scrollTop -= scrollStuckOffset;
        }
    },

    _updateStickyHeaders: function(initialise, scrollToPosition) {
        const self = this;

        if (initialise) {
            // Useing setTimeout to ensure that the code is run after the painting
            // of the newly rendered object as using requestAnimationFrame caused
            // artefacts to appear on screen briefly
            window.setTimeout(function() {
                self._initAndPositionStickyHeaders(initialise, scrollToPosition);
            });
        } else {
            this._initAndPositionStickyHeaders(initialise, scrollToPosition);
        }
    },

    onShowMoreRooms: function() {
        // kick gemini in the balls to get it to wake up
        // XXX: uuuuuuugh.
        if (!this._gemScroll) return;
        this._gemScroll.forceUpdate();
    },

    _getEmptyContent: function(section) {
        if (this.state.selectedTags.length > 0) {
            return null;
        }

        const RoomDropTarget = sdk.getComponent('rooms.RoomDropTarget');

        if (this.props.collapsed) {
            return <RoomDropTarget label="" />;
        }

        const StartChatButton = sdk.getComponent('elements.StartChatButton');
        const RoomDirectoryButton = sdk.getComponent('elements.RoomDirectoryButton');
        const CreateRoomButton = sdk.getComponent('elements.CreateRoomButton');

        let tip = null;

        switch (section) {
            case 'im.vector.fake.direct':
                tip = <div className="mx_RoomList_emptySubListTip">
                    { _t(
                        "Press <StartChatButton> to start a chat with someone",
                        {},
                        { 'StartChatButton': <StartChatButton size="16" callout={true} /> },
                    ) }
                </div>;
                break;
            case 'im.vector.fake.recent':
                tip = <div className="mx_RoomList_emptySubListTip">
                    { _t(
                        "You're not in any rooms yet! Press <CreateRoomButton> to make a room or"+
                        " <RoomDirectoryButton> to browse the directory",
                        {},
                        {
                            'CreateRoomButton': <CreateRoomButton size="16" callout={true} />,
                            'RoomDirectoryButton': <RoomDirectoryButton size="16" callout={true} />,
                        },
                    ) }
                </div>;
                break;
        }

        if (tip) {
            return <div className="mx_RoomList_emptySubListTip_container">
                { tip }
            </div>;
        }

        // We don't want to display drop targets if there are no room tiles to drag'n'drop
        if (this.state.totalRoomCount === 0) {
            return null;
        }

        const labelText = phraseForSection(section);

        return <RoomDropTarget label={labelText} />;
    },

    _getHeaderItems: function(section) {
        const StartChatButton = sdk.getComponent('elements.StartChatButton');
        const RoomDirectoryButton = sdk.getComponent('elements.RoomDirectoryButton');
        const CreateRoomButton = sdk.getComponent('elements.CreateRoomButton');
        switch (section) {
            case 'im.vector.fake.direct':
                return <span className="mx_RoomList_headerButtons">
                    <StartChatButton size="16" />
                </span>;
            case 'im.vector.fake.recent':
                return <span className="mx_RoomList_headerButtons">
                    <RoomDirectoryButton size="16" />
                    <CreateRoomButton size="16" />
                </span>;
        }
    },

    _makeGroupInviteTiles(filter) {
        const ret = [];
        const lcFilter = filter && filter.toLowerCase();

        const GroupInviteTile = sdk.getComponent('groups.GroupInviteTile');
        for (const group of MatrixClientPeg.get().getGroups()) {
            const {groupId, name, myMembership} = group;
            // filter to only groups in invite state and group_id starts with filter or group name includes it
            if (myMembership !== 'invite') continue;
            if (lcFilter && !groupId.toLowerCase().startsWith(lcFilter) &&
                !(name && name.toLowerCase().includes(lcFilter))) continue;
            ret.push(<GroupInviteTile key={groupId} group={group} collapsed={this.props.collapsed} />);
        }

        return ret;
    },

    _collectGemini(gemScroll) {
        this._gemScroll = gemScroll;
    },

    render: function() {
        const RoomSubList = sdk.getComponent('structures.RoomSubList');
        const GeminiScrollbarWrapper = sdk.getComponent("elements.GeminiScrollbarWrapper");

        // XXX: we can't detect device-level (localStorage) settings onChange as the SettingsStore does not notify
        // so checking on every render is the sanest thing at this time.
        const showEmpty = SettingsStore.getValue('RoomSubList.showEmpty');

        const self = this;
        return (
            <GeminiScrollbarWrapper className="mx_RoomList_scrollbar"
                autoshow={true} onScroll={self._whenScrolling} onResize={self._whenScrolling} wrappedRef={this._collectGemini}>
            <div className="mx_RoomList">
                <RoomSubList list={[]}
                             extraTiles={this._makeGroupInviteTiles(self.props.searchFilter)}
                             label={_t('Community Invites')}
                             editable={false}
                             order="recent"
                             isInvite={true}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty}
                />

                <RoomSubList list={self.state.lists['im.vector.fake.invite']}
                             label={_t('Invites')}
                             editable={false}
                             order="recent"
                             isInvite={true}
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty}
                />

                <RoomSubList list={self.state.lists['m.favourite']}
                             label={_t('Favourites')}
                             tagName="m.favourite"
                             emptyContent={this._getEmptyContent('m.favourite')}
                             editable={true}
                             order="manual"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty} />

                <RoomSubList list={self.state.lists['im.vector.fake.direct']}
                             label={_t('People')}
                             tagName="im.vector.fake.direct"
                             emptyContent={this._getEmptyContent('im.vector.fake.direct')}
                             headerItems={this._getHeaderItems('im.vector.fake.direct')}
                             editable={true}
                             order="recent"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             alwaysShowHeader={true}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty} />

                <RoomSubList list={self.state.lists['im.vector.fake.recent']}
                             label={_t('Rooms')}
                             editable={true}
                             emptyContent={this._getEmptyContent('im.vector.fake.recent')}
                             headerItems={this._getHeaderItems('im.vector.fake.recent')}
                             order="recent"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty} />

                { Object.keys(self.state.lists).map((tagName) => {
                    if (!tagName.match(STANDARD_TAGS_REGEX)) {
                        return <RoomSubList list={self.state.lists[tagName]}
                             key={tagName}
                             label={labelForTagName(tagName)}
                             tagName={tagName}
                             emptyContent={this._getEmptyContent(tagName)}
                             editable={true}
                             order="manual"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                                            showEmpty={showEmpty} />;
                    }
                }) }

                <RoomSubList list={self.state.lists['m.lowpriority']}
                             label={_t('Low priority')}
                             tagName="m.lowpriority"
                             emptyContent={this._getEmptyContent('m.lowpriority')}
                             editable={true}
                             order="recent"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty} />

                <RoomSubList list={self.state.lists['im.vector.fake.archived']}
                             emptyContent={self.props.collapsed ? null :
                                 <div className="mx_RoomList_emptySubListTip_container">
                                     <div className="mx_RoomList_emptySubListTip">
                                         { _t('You have no historical rooms') }
                                     </div>
                                 </div>
                             }
                             label={_t('Historical')}
                             editable={false}
                             order="recent"
                             collapsed={self.props.collapsed}
                             alwaysShowHeader={true}
                             startAsHidden={true}
                             showSpinner={self.state.isLoadingLeftRooms}
                             onHeaderClick={self.onArchivedHeaderClick}
                             incomingCall={self.state.incomingCall}
                             searchFilter={self.props.searchFilter}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={showEmpty} />

                <RoomSubList list={self.state.lists['m.server_notice']}
                             label={_t('System Alerts')}
                             tagName="m.lowpriority"
                             editable={false}
                             order="recent"
                             incomingCall={self.state.incomingCall}
                             collapsed={self.props.collapsed}
                             searchFilter={self.props.searchFilter}
                             onHeaderClick={self.onSubListHeaderClick}
                             onShowMoreRooms={self.onShowMoreRooms}
                             showEmpty={false} />
            </div>
            </GeminiScrollbarWrapper>
        );
    },
});