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// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.
var AppDispatcher = require('../dispatcher/app_dispatcher.jsx');
var EventEmitter = require('events').EventEmitter;
var assign = require('object-assign');
var Constants = require('../utils/constants.jsx');
var ActionTypes = Constants.ActionTypes;
var CHANGE_EVENT = 'change';
var MORE_CHANGE_EVENT = 'change';
var EXTRA_INFO_EVENT = 'extra_info';
var ChannelStore = assign({}, EventEmitter.prototype, {
emitChange: function() {
this.emit(CHANGE_EVENT);
},
addChangeListener: function(callback) {
this.on(CHANGE_EVENT, callback);
},
removeChangeListener: function(callback) {
this.removeListener(CHANGE_EVENT, callback);
},
emitMoreChange: function() {
this.emit(MORE_CHANGE_EVENT);
},
addMoreChangeListener: function(callback) {
this.on(MORE_CHANGE_EVENT, callback);
},
removeMoreChangeListener: function(callback) {
this.removeListener(MORE_CHANGE_EVENT, callback);
},
emitExtraInfoChange: function() {
this.emit(EXTRA_INFO_EVENT);
},
addExtraInfoChangeListener: function(callback) {
this.on(EXTRA_INFO_EVENT, callback);
},
removeExtraInfoChangeListener: function(callback) {
this.removeListener(EXTRA_INFO_EVENT, callback);
},
get: function(id) {
var current = null;
var c = this._getChannels();
c.some(function(channel) {
if (channel.id == id) {
current = channel;
return true;
}
return false;
});
return current;
},
getMember: function(id) {
var current = null;
return this.getAllMembers()[id];
},
getByName: function(name) {
var current = null;
var c = this._getChannels();
c.some(function(channel) {
if (channel.name == name) {
current = channel;
return true;
}
return false;
});
return current;
},
getAll: function() {
return this._getChannels();
},
getAllMembers: function() {
return this._getChannelMembers();
},
getMoreAll: function() {
return this._getMoreChannels();
},
setCurrentId: function(id) {
if (id == null)
sessionStorage.removeItem("current_channel_id");
else
sessionStorage.setItem("current_channel_id", id);
},
setLastVisitedName: function(name) {
if (name == null)
localStorage.removeItem("last_visited_name");
else
localStorage.setItem("last_visited_name", name);
},
getLastVisitedName: function() {
return localStorage.getItem("last_visited_name");
},
resetCounts: function(id) {
var cm = this._getChannelMembers();
for (var cmid in cm) {
if (cm[cmid].channel_id == id) {
var c = this.get(id);
if (c) {
cm[cmid].msg_count = this.get(id).total_msg_count;
cm[cmid].mention_count = 0;
}
break;
}
}
this._storeChannelMembers(cm);
},
getCurrentId: function() {
return sessionStorage.getItem("current_channel_id");
},
getCurrent: function() {
var currentId = ChannelStore.getCurrentId();
if (currentId != null)
return this.get(currentId);
else
return null;
},
getCurrentMember: function() {
var currentId = ChannelStore.getCurrentId();
if (currentId != null)
return this.getAllMembers()[currentId];
else
return null;
},
setChannelMember: function(member) {
var members = this._getChannelMembers();
members[member.channel_id] = member;
this._storeChannelMembers(members);
this.emitChange();
},
getCurrentExtraInfo: function() {
var currentId = ChannelStore.getCurrentId();
var extra = null;
if (currentId != null)
extra = this._getExtraInfos()[currentId];
if (extra == null)
extra = {members: []};
return extra;
},
getExtraInfo: function(channel_id) {
var extra = null;
if (channel_id != null)
extra = this._getExtraInfos()[channel_id];
if (extra == null)
extra = {members: []};
return extra;
},
_storeChannels: function(channels) {
sessionStorage.setItem("channels", JSON.stringify(channels));
},
_getChannels: function() {
var channels = [];
try {
channels = JSON.parse(sessionStorage.channels);
}
catch (err) {
}
return channels;
},
_storeChannelMembers: function(channelMembers) {
sessionStorage.setItem("channel_members", JSON.stringify(channelMembers));
},
_getChannelMembers: function() {
var members = {};
try {
members = JSON.parse(sessionStorage.channel_members);
}
catch (err) {
}
return members;
},
_storeMoreChannels: function(channels) {
sessionStorage.setItem("more_channels", JSON.stringify(channels));
},
_getMoreChannels: function() {
var channels = [];
try {
channels = JSON.parse(sessionStorage.more_channels);
}
catch (err) {
}
return channels;
},
_storeExtraInfos: function(extraInfos) {
sessionStorage.setItem("extra_infos", JSON.stringify(extraInfos));
},
_getExtraInfos: function() {
var members = {};
try {
members = JSON.parse(sessionStorage.extra_infos);
}
catch (err) {
}
return members;
}
});
ChannelStore.dispatchToken = AppDispatcher.register(function(payload) {
var action = payload.action;
switch(action.type) {
case ActionTypes.CLICK_CHANNEL:
ChannelStore.setCurrentId(action.id);
ChannelStore.setLastVisitedName(action.name);
ChannelStore.resetCounts(action.id);
ChannelStore.emitChange();
break;
case ActionTypes.RECIEVED_CHANNELS:
ChannelStore._storeChannels(action.channels);
ChannelStore._storeChannelMembers(action.members);
var currentId = ChannelStore.getCurrentId();
if (currentId) ChannelStore.resetCounts(currentId);
ChannelStore.emitChange();
break;
case ActionTypes.RECIEVED_MORE_CHANNELS:
ChannelStore._storeMoreChannels(action.channels);
ChannelStore.emitMoreChange();
break;
case ActionTypes.RECIEVED_CHANNEL_EXTRA_INFO:
var extra_infos = ChannelStore._getExtraInfos();
extra_infos[action.extra_info.id] = action.extra_info;
ChannelStore._storeExtraInfos(extra_infos);
ChannelStore.emitExtraInfoChange();
break;
default:
}
});
module.exports = ChannelStore;
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