var
    /**
     * @type SlackWrapper
    **/
    SLACK

    /**
     * @type {Object.<string, number>} number of unread per chan
    **/
    ,UNREAD_CHANS = {};

;

/**
 * @constructor
**/
function SlackWrapper() {
    /** @type {number} */
    this.lastServerVersion = 0;

    /** @type {SlackData} */
    this.context = new SlackData(null);

    /** @type {!Object.<string, SlackHistory>} **/
    this.history = {};
}

SlackWrapper.prototype.update = function(data) {
    if (data["v"])
        this.lastServerVersion = data["v"];
    if (data["static"]) {
        this.context.updateStatic(data["static"]);
        onContextUpdated();
    }
    if (data["live"]) {
        for (var i in data["live"]) {
            var history = this.history[i];
            if (!history)
                this.history[i] = new SlackHistory(i, 500, data["live"][i]);
            else
                history.pushAll(data["live"][i]);
        }
        for (var roomId in data["live"]) {
            if (SELECTED_ROOM && data["live"][SELECTED_ROOM.id])
                onRoomUpdated();
            else
                onMsgReceived(this.context.getChannel(roomId), data["live"][roomId]);
        }
    }
};

SLACK = new SlackWrapper();