/*-----------------------------------------------------+
 * 定时器相关处理
 * @author whjing2012@163.com
 +-----------------------------------------------------*/

var Timer = {

    idx: 1,
    timer: {},

    getInstance: function() {
        return this;
    },

    set: function( func, time, num, id ) {
        time = time || 1000;
        num = num || 1;
        if( !id ) {
            id = this.idx++;
        }
        this.del( id );
        this.timer[ id ] = window.setTimeout( ( function() {
            if( num == 1 ) {
                this.del( id );
            } else {
                this.set( func, time, num - 1, id );
            }
            func();
        } ).bind( this ), time );
        return id;
    },

    del: function( id ) {
        if( this.timer.hasOwnProperty( id ) ) {
            window.clearTimeout( this.timer[ id ] );
            delete this.timer[ id ];
        }
    }
};

module.exports = Timer;