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function(e,t,n){"use strict";n.d(t,{A:()=>i});class i{min;max;jitter;_current;_timeoutId;_callback;_fails=0;constructor(e=500,t=null,n=!0){if(e<=0)throw Error("Backoff min value must be greater than zero or backoff will never back-off.");this.min=e,this.max=null!=t?t:10*e,this.jitter=n,this._current=e}get fails(){return this._fails}get current(){return this._current}get pending(){return null!=this._timeoutId}succeed(){this.cancel(),this._fails=0,this._current=this.min}fail(e,t){this._fails+=1;let n=2*this._current;this.jitter&&(n*=Math.random()),this._current=Math.min(this._current+n,this.max);let i=null!=t&&t>this._current?t:this._current;if(null!=e){if(null!=this._timeoutId)if(this._callback!==e)throw Error("callback already pending");else this.cancel();this._callback=e,this._timeoutId=setTimeout(()=>{try{null!=e&&e()}finally{this.cancel()}},i)}return i}cancel(){this._callback=null,null!=this._timeoutId&&(clearTimeout(this._timeoutId),this._timeoutId=null)}}}