/*!
 * Ext JS Library 3.0.0
 * Copyright(c) 2006-2009 Ext JS, LLC
 * licensing@extjs.com
 * http://www.extjs.com/license
 */
/**
 * @class Ext.StoreMgr
 * @extends Ext.util.MixedCollection
 * The default global group of stores.
 * @singleton
 */
Ext.StoreMgr = Ext.apply(new Ext.util.MixedCollection(), {
    /**
     * @cfg {Object} listeners @hide
     */

    /**
     * Registers one or more Stores with the StoreMgr. You do not normally need to register stores
     * manually.  Any store initialized with a {@link Ext.data.Store#storeId} will be auto-registered. 
     * @param {Ext.data.Store} store1 A Store instance
     * @param {Ext.data.Store} store2 (optional)
     * @param {Ext.data.Store} etc... (optional)
     */
    register : function(){
        for(var i = 0, s; (s = arguments[i]); i++){
            this.add(s);
        }
    },

    /**
     * Unregisters one or more Stores with the StoreMgr
     * @param {String/Object} id1 The id of the Store, or a Store instance
     * @param {String/Object} id2 (optional)
     * @param {String/Object} etc... (optional)
     */
    unregister : function(){
        for(var i = 0, s; (s = arguments[i]); i++){
            this.remove(this.lookup(s));
        }
    },

    /**
     * Gets a registered Store by id
     * @param {String/Object} id The id of the Store, or a Store instance
     * @return {Ext.data.Store}
     */
    lookup : function(id){
        if(Ext.isArray(id)){
            var fields = ['field1'], expand = !Ext.isArray(id[0]);
            if(!expand){
                for(var i = 2, len = id[0].length; i <= len; ++i){
                    fields.push('field' + i);
                }
            }
            return new Ext.data.ArrayStore({
                fields: fields,
                data: id,
                expandData: expand,
                autoDestroy: true,
                autoCreated: true

            });
        }
        return Ext.isObject(id) ? (id.events ? id : Ext.create(id, 'store')) : this.get(id);
    },

    // getKey implementation for MixedCollection
    getKey : function(o){
         return o.storeId;
    }
});