// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.

var ChannelStore = require('../stores/channel_store.jsx');
var UserStore = require('../stores/user_store.jsx');
var PostStore = require('../stores/post_store.jsx');
var SocketStore = require('../stores/socket_store.jsx');
var NavbarSearchBox = require('./search_bar.jsx');
var AsyncClient = require('../utils/async_client.jsx');
var Client = require('../utils/client.jsx');
var utils = require('../utils/utils.jsx');
var MessageWrapper = require('./message_wrapper.jsx');

var AppDispatcher = require('../dispatcher/app_dispatcher.jsx');
var Constants = require('../utils/constants.jsx');
var ActionTypes = Constants.ActionTypes;

var PopoverListMembers = React.createClass({
    componentDidMount: function() {
        var originalLeave = $.fn.popover.Constructor.prototype.leave;
        $.fn.popover.Constructor.prototype.leave = function(obj) {
            var selfObj;
            if (obj instanceof this.constructor) {
                selfObj = obj;
            } else {
                selfObj = $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type);
            }
            originalLeave.call(this, obj);

            if (obj.currentTarget && selfObj.$tip) {
                selfObj.$tip.one('mouseenter', function() {
                    clearTimeout(selfObj.timeout);
                    selfObj.$tip.one('mouseleave', function() {
                        $.fn.popover.Constructor.prototype.leave.call(selfObj, selfObj);
                    });
                });
            }
        };

        $('#member_popover').popover({placement: 'bottom', trigger: 'click', html: true});
        $('body').on('click', function(e) {
            if ($(e.target.parentNode.parentNode)[0] !== $('#member_popover')[0] && $(e.target).parents('.popover.in').length === 0) {
                $('#member_popover').popover('hide');
            }
        });
    },

    render: function() {
        var popoverHtml = '';
        var members = this.props.members;
        var count;
        if (members.length > 20) {
            count = '20+';
        } else {
            count = members.length || '-';
        }

        if (members) {
            members.sort(function(a, b) {
                return a.username.localeCompare(b.username);
            });

            members.forEach(function(m) {
                popoverHtml += "<div class='text--nowrap'>" + m.username + '</div>';
            });
        }

        return (
            <div id='member_popover' data-toggle='popover' data-content={popoverHtml} data-original-title='Members' >
                <div id='member_tooltip' data-placement='left' data-toggle='tooltip' title='View Channel Members'>
                    {count} <span className='glyphicon glyphicon-user' aria-hidden='true'></span>
                </div>
            </div>
        );
    }
});

function getStateFromStores() {
    return {
        channel: ChannelStore.getCurrent(),
        memberChannel: ChannelStore.getCurrentMember(),
        memberTeam: UserStore.getCurrentUser(),
        users: ChannelStore.getCurrentExtraInfo().members,
        searchVisible: PostStore.getSearchResults() != null
    };
}

module.exports = React.createClass({
    displayName: 'ChannelHeader',
    componentDidMount: function() {
        ChannelStore.addChangeListener(this.onListenerChange);
        ChannelStore.addExtraInfoChangeListener(this.onListenerChange);
        PostStore.addSearchChangeListener(this.onListenerChange);
        UserStore.addChangeListener(this.onListenerChange);
        SocketStore.addChangeListener(this.onSocketChange);
    },
    componentWillUnmount: function() {
        ChannelStore.removeChangeListener(this.onListenerChange);
        ChannelStore.removeExtraInfoChangeListener(this.onListenerChange);
        PostStore.removeSearchChangeListener(this.onListenerChange);
        UserStore.addChangeListener(this.onListenerChange);
    },
    onListenerChange: function() {
        var newState = getStateFromStores();
        if (!utils.areStatesEqual(newState, this.state)) {
            this.setState(newState);
        }
        $('.channel-header__info .description').popover({placement: 'bottom', trigger: 'hover click', html: true, delay: {show: 500, hide: 500}});
    },
    onSocketChange: function(msg) {
        if (msg.action === 'new_user') {
            AsyncClient.getChannelExtraInfo(true);
        }
    },
    getInitialState: function() {
        return getStateFromStores();
    },
    handleLeave: function() {
        Client.leaveChannel(this.state.channel.id,
            function() {
                var townsquare = ChannelStore.getByName('town-square');
                utils.switchChannel(townsquare);
            },
            function(err) {
                AsyncClient.dispatchError(err, 'handleLeave');
            }
        );
    },
    searchMentions: function(e) {
        e.preventDefault();

        var user = UserStore.getCurrentUser();

        var terms = '';
        if (user.notify_props && user.notify_props.mention_keys) {
            var termKeys = UserStore.getCurrentMentionKeys();
            if (user.notify_props.all === 'true' && termKeys.indexOf('@all') !== -1) {
                termKeys.splice(termKeys.indexOf('@all'), 1);
            }
            if (user.notify_props.channel === 'true' && termKeys.indexOf('@channel') !== -1) {
                termKeys.splice(termKeys.indexOf('@channel'), 1);
            }
            terms = termKeys.join(' ');
        }

        AppDispatcher.handleServerAction({
            type: ActionTypes.RECIEVED_SEARCH_TERM,
            term: terms,
            do_search: true,
            is_mention_search: true
        });
    },
    render: function() {
        if (this.state.channel == null) {
            return null;
        }

        var channel = this.state.channel;
        var description = utils.textToJsx(channel.description, {singleline: true, noMentionHighlight: true});
        var popoverContent = React.renderToString(<MessageWrapper message={channel.description}/>);
        var channelTitle = channel.display_name;
        var currentId = UserStore.getCurrentId();
        var isAdmin = this.state.memberChannel.roles.indexOf('admin') > -1 || this.state.memberTeam.roles.indexOf('admin') > -1;
        var isDirect = (this.state.channel.type === 'D');

        if (isDirect) {
            if (this.state.users.length > 1) {
                var contact;
                if (this.state.users[0].id === currentId) {
                    contact = this.state.users[1];
                } else {
                    contact = this.state.users[0];
                }
                channelTitle = contact.nickname || contact.username;
            }
        }

        var channelTerm = 'Channel';
        if (channel.type === 'P') {
            channelTerm = 'Group';
        }

        return (
            <table className='channel-header alt'>
                <tr>
                    <th>
                        <div className='channel-header__info'>
                            <div className='dropdown'>
                                <a href='#' className='dropdown-toggle theme' type='button' id='channel_header_dropdown' data-toggle='dropdown' aria-expanded='true'>
                                    <strong className='heading'>{channelTitle} </strong>
                                    <span className='glyphicon glyphicon-chevron-down header-dropdown__icon'></span>
                                </a>
                                {!isDirect ?
                                <ul className='dropdown-menu' role='menu' aria-labelledby='channel_header_dropdown'>
                                    <li role='presentation'><a role='menuitem' data-toggle='modal' data-target='#channel_info' data-channelid={channel.id} href='#'>View Info</a></li>
                                    {!ChannelStore.isDefault(channel) ?
                                        <li role='presentation'><a role='menuitem' data-toggle='modal' data-target='#channel_invite' href='#'>Add Members</a></li>
                                        : null
                                    }
                                    {isAdmin && !ChannelStore.isDefault(channel) ?
                                        <li role='presentation'><a role='menuitem' data-toggle='modal' data-target='#channel_members' href='#'>Manage Members</a></li>
                                        : null
                                    }
                                    <li role='presentation'><a role='menuitem' href='#' data-toggle='modal' data-target='#edit_channel' data-desc={channel.description} data-title={channel.display_name} data-channelid={channel.id}>Set {channelTerm} Description...</a></li>
                                    <li role='presentation'><a role='menuitem' href='#' data-toggle='modal' data-target='#channel_notifications' data-title={channel.display_name} data-channelid={channel.id}>Notification Preferences</a></li>
                                    {isAdmin && !ChannelStore.isDefault(channel) ?
                                        <li role='presentation'><a role='menuitem' href='#' data-toggle='modal' data-target='#rename_channel' data-display={channel.display_name} data-name={channel.name} data-channelid={channel.id}>Rename {channelTerm}...</a></li>
                                        : null
                                    }
                                    {isAdmin && !ChannelStore.isDefault(channel) ?
                                        <li role='presentation'><a role='menuitem' href='#' data-toggle='modal' data-target='#delete_channel' data-title={channel.display_name} data-channelid={channel.id}>Delete {channelTerm}...</a></li>
                                        : null
                                    }
                                    {!ChannelStore.isDefault(channel) ?
                                        <li role='presentation'><a role='menuitem' href='#' onClick={this.handleLeave}>Leave {channelTerm}</a></li>
                                        : null
                                    }
                                </ul>
                                :
                                <ul className='dropdown-menu' role='menu' aria-labelledby='channel_header_dropdown'>
                                    <li role='presentation'><a role='menuitem' href='#' data-toggle='modal' data-target='#edit_channel' data-desc={channel.description} data-title={channel.display_name} data-channelid={channel.id}>Set Channel Description...</a></li>
                                </ul>
                                }
                            </div>
                            <div data-toggle='popover' data-content={popoverContent} className='description'>{description}</div>
                        </div>
                    </th>
                    <th><PopoverListMembers members={this.state.users} channelId={channel.id} /></th>
                    <th className='search-bar__container'><NavbarSearchBox /></th>
                    <th>
                        <div className='dropdown channel-header__links'>
                            <a href='#' className='dropdown-toggle theme' type='button' id='channel_header_right_dropdown' data-toggle='dropdown' aria-expanded='true'>
                                <span dangerouslySetInnerHTML={{__html: Constants.MENU_ICON}} /> </a>
                            <ul className='dropdown-menu dropdown-menu-right' role='menu' aria-labelledby='channel_header_right_dropdown'>
                                <li role='presentation'><a role='menuitem' href='#' onClick={this.searchMentions}>Recent Mentions</a></li>
                            </ul>
                        </div>
                    </th>
                </tr>
            </table>
        );
    }
});