"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 scheduler
 * @return {Observable<TimeInterval<any>>|WebSocketSubject<T>|Observable<T>}
 * @method timeInterval
 * @owner Observable
 */
function timeInterval(scheduler) {
    if (scheduler === void 0) { scheduler = async_1.async; }
    return this.lift(new TimeIntervalOperator(scheduler));
}
exports.timeInterval = timeInterval;
var TimeInterval = (function () {
    function TimeInterval(value, interval) {
        this.value = value;
        this.interval = interval;
    }
    return TimeInterval;
}());
exports.TimeInterval = TimeInterval;
;
var TimeIntervalOperator = (function () {
    function TimeIntervalOperator(scheduler) {
        this.scheduler = scheduler;
    }
    TimeIntervalOperator.prototype.call = function (observer) {
        return new TimeIntervalSubscriber(observer, this.scheduler);
    };
    return TimeIntervalOperator;
}());
var TimeIntervalSubscriber = (function (_super) {
    __extends(TimeIntervalSubscriber, _super);
    function TimeIntervalSubscriber(destination, scheduler) {
        _super.call(this, destination);
        this.scheduler = scheduler;
        this.lastTime = 0;
        this.lastTime = scheduler.now();
    }
    TimeIntervalSubscriber.prototype._next = function (value) {
        var now = this.scheduler.now();
        var span = now - this.lastTime;
        this.lastTime = now;
        this.destination.next(new TimeInterval(value, span));
    };
    return TimeIntervalSubscriber;
}(Subscriber_1.Subscriber));
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