import { EventVo } from '../vo/EventVo';
import { ModuleEvent } from '../local/ModuleEvent';
export class EventManager {
    private static _receivedEventsHanlder: Function;
    //所有的事件集
    private static _events: any = {};

    /**
     * 注册事件，初始化的时候所有的事件都被注册了
     * @param $event 模块事件
     *
     */
    static registerEvent($eventVo: EventVo, receivedEventsHanlder: Function = null): void {
        if ($eventVo === null) return;
        this._receivedEventsHanlder = receivedEventsHanlder;
        var eventClass: any = $eventVo.eventClass;
        if (eventClass) {
            if (this._events[eventClass] === undefined)
                this._events[eventClass] = [];
            //判断是否存在代理
            var key: any = $eventVo.eventClass;
            var find: boolean = false;
            for (var _key in this._events) {
                if (_key == key) {
                    var _arr: EventVo[] = this._events[_key];
                    if (_arr) {
                        for (var i: number = 0, l: number = _arr.length; i < l; i++) {
                            if (_arr[i].proxy === $eventVo.proxy) {
                                find = true;
                                break;
                            }
                        }
                        if (find)
                            break;
                    }
                }
            }
            if (!find)
                this._events[eventClass].push($eventVo);
        }
    }


    /**
     * 某个代理发送事件
     * @param $proxy 事件代理
     * @param $event 事件
     *
     */
    static dispatchModuleEvent($event: ModuleEvent): void {
        if (!$event) return;

        var events: EventVo[] = this._events[$event.getClass()];
        if (events) {
            for (var i: number = 0, l: number = events.length; i < l; i++) {
                var eventVo: EventVo = events[i];
                eventVo.proxy.receivedEvents($event);
                if (this._receivedEventsHanlder) {
                    this._receivedEventsHanlder(eventVo, $event);
                }
            }
        }
    }
}