"use strict";
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var Subscriber_1 = require('../Subscriber');
var async_1 = require('../scheduler/async');
/**
 * @param delay
 * @param scheduler
 * @return {Observable<R>|WebSocketSubject<T>|Observable<T>}
 * @method throttleTime
 * @owner Observable
 */
function throttleTime(delay, scheduler) {
    if (scheduler === void 0) { scheduler = async_1.async; }
    return this.lift(new ThrottleTimeOperator(delay, scheduler));
}
exports.throttleTime = throttleTime;
var ThrottleTimeOperator = (function () {
    function ThrottleTimeOperator(delay, scheduler) {
        this.delay = delay;
        this.scheduler = scheduler;
    }
    ThrottleTimeOperator.prototype.call = function (subscriber) {
        return new ThrottleTimeSubscriber(subscriber, this.delay, this.scheduler);
    };
    return ThrottleTimeOperator;
}());
var ThrottleTimeSubscriber = (function (_super) {
    __extends(ThrottleTimeSubscriber, _super);
    function ThrottleTimeSubscriber(destination, delay, scheduler) {
        _super.call(this, destination);
        this.delay = delay;
        this.scheduler = scheduler;
    }
    ThrottleTimeSubscriber.prototype._next = function (value) {
        if (!this.throttled) {
            this.add(this.throttled = this.scheduler.schedule(dispatchNext, this.delay, { subscriber: this }));
            this.destination.next(value);
        }
    };
    ThrottleTimeSubscriber.prototype.clearThrottle = function () {
        var throttled = this.throttled;
        if (throttled) {
            throttled.unsubscribe();
            this.remove(throttled);
            this.throttled = null;
        }
    };
    return ThrottleTimeSubscriber;
}(Subscriber_1.Subscriber));
function dispatchNext(_a) {
    var subscriber = _a.subscriber;
    subscriber.clearThrottle();
}
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