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/home/techb158/balavpn.abdallabala.com/node_modules/@humanwhocodes/retry/dist/

/home/techb158/balavpn.abdallabala.com/node_modules/@humanwhocodes/retry/dist

Name	Size	Mode	Actions
retrier.cjs	13766	0666	edit dl rm
retrier.d.cts	1889	0666	edit dl rm
retrier.d.ts	1889	0666	edit dl rm
retrier.js	13779	0666	edit dl rm
retrier.min.js	3103	0666	edit dl rm
retrier.mjs	13744	0666	edit dl rm

Edit: /home/techb158/balavpn.abdallabala.com/node_modules/@humanwhocodes/retry/dist/retrier.cjs (13766B)

'use strict';

/**
 * @fileoverview A utility for retrying failed async method calls.
 */

/* global setTimeout, clearTimeout */

//-----------------------------------------------------------------------------
// Constants
//-----------------------------------------------------------------------------

const MAX_TASK_TIMEOUT = 60000;
const MAX_TASK_DELAY = 100;
const MAX_CONCURRENCY = 1000;

//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------

/**
 * Logs a message to the console if the DEBUG environment variable is set.
 * @param {string} message The message to log.
 * @returns {void}
 */
function debug(message) {
    if (globalThis?.process?.env.DEBUG === "@hwc/retry") {
        console.debug(message);
    }
}

/*
 * The following logic has been extracted from graceful-fs.
 *
 * The ISC License
 *
 * Copyright (c) 2011-2023 Isaac Z. Schlueter, Ben Noordhuis, and Contributors
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/**
 * Checks if it is time to retry a task based on the timestamp and last attempt time.
 * @param {RetryTask} task The task to check.
 * @param {number} maxDelay The maximum delay for the queue.
 * @returns {boolean} true if it is time to retry, false otherwise.
 */
function isTimeToRetry(task, maxDelay) {
    const timeSinceLastAttempt = Date.now() - task.lastAttempt;
    const timeSinceStart = Math.max(task.lastAttempt - task.timestamp, 1);
    const desiredDelay = Math.min(timeSinceStart * 1.2, maxDelay);

return timeSinceLastAttempt >= desiredDelay;
}

/**
 * Checks if it is time to bail out based on the given timestamp.
 * @param {RetryTask} task The task to check.
 * @param {number} timeout The timeout for the queue.
 * @returns {boolean} true if it is time to bail, false otherwise.
 */
function isTimeToBail(task, timeout) {
    return task.age > timeout;
}

/**
 * Creates a new promise with resolve and reject functions.
 * @returns {{promise:Promise<any>, resolve:(value:any) => any, reject: (value:any) => any}} A new promise.
 */
function createPromise() {
    if (Promise.withResolvers) {
        return Promise.withResolvers();
    }

let resolve, reject;

const promise = new Promise((res, rej) => {
        resolve = res;
        reject = rej;
    });

if (resolve === undefined || reject === undefined) {
        throw new Error("Promise executor did not initialize resolve or reject.");
    }

return { promise, resolve, reject };
}

/**
 * A class to represent a task in the retry queue.
 */
class RetryTask {

/**
     * The unique ID for the task.
     * @type {string}
     */
    id = Math.random().toString(36).slice(2);

/**
     * The function to call.
     * @type {Function}
     */
    fn;

/**
     * The error that was thrown.
     * @type {Error}
     */
    error;
    
    /**
     * The timestamp of the task.
     * @type {number}
     */
    timestamp = Date.now();

/**
     * The timestamp of the last attempt.
     * @type {number}
     */
    lastAttempt = this.timestamp;

/**
     * The resolve function for the promise.
     * @type {Function}
     */
    resolve;

/**
     * The reject function for the promise.
     * @type {Function}
     */
    reject;

/**
     * The AbortSignal to monitor for cancellation.
     * @type {AbortSignal|undefined}
     */
    signal;

/**
     * Creates a new instance.
     * @param {Function} fn The function to call.
     * @param {Error} error The error that was thrown.
     * @param {Function} resolve The resolve function for the promise.
     * @param {Function} reject The reject function for the promise.
     * @param {AbortSignal|undefined} signal The AbortSignal to monitor for cancellation.
     */
    constructor(fn, error, resolve, reject, signal) {
        this.fn = fn;
        this.error = error;
        this.timestamp = Date.now();
        this.lastAttempt = Date.now();
        this.resolve = resolve;
        this.reject = reject;
        this.signal = signal;
    }
    
    /**
     * Gets the age of the task.
     * @returns {number} The age of the task in milliseconds.
     * @readonly
     */
    get age() {
        return Date.now() - this.timestamp;
    }
}

//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------

/**
 * A class that manages a queue of retry jobs.
 */
class Retrier {

/**
     * Represents the queue for processing tasks.
     * @type {Array<RetryTask>}
     */
    #retrying = [];

/**
     * Represents the queue for pending tasks.
     * @type {Array<Function>}
     */
    #pending = [];

/**
     * The number of tasks currently being processed.
     * @type {number}
     */
    #working = 0;

/**
     * The timeout for the queue.
     * @type {number}
     */
    #timeout;

/**
     * The maximum delay for the queue.
     * @type {number}
     */
    #maxDelay;

/**
     * The setTimeout() timer ID.
     * @type {NodeJS.Timeout|undefined}
     */
    #timerId;

/**
     * The function to call.
     * @type {Function}
     */
    #check;

/**
     * The maximum number of concurrent tasks.
     * @type {number}
     */
    #concurrency;

/**
     * Creates a new instance.
     * @param {Function} check The function to call.
     * @param {object} [options] The options for the instance.
     * @param {number} [options.timeout] The timeout for the queue.
     * @param {number} [options.maxDelay] The maximum delay for the queue.
     * @param {number} [options.concurrency] The maximum number of concurrent tasks.
     */
    constructor(check, { timeout = MAX_TASK_TIMEOUT, maxDelay = MAX_TASK_DELAY, concurrency = MAX_CONCURRENCY } = {}) {

if (typeof check !== "function") {
            throw new Error("Missing function to check errors");
        }

this.#check = check;
        this.#timeout = timeout;
        this.#maxDelay = maxDelay;
        this.#concurrency = concurrency;
    }

/**
     * Gets the number of tasks waiting to be retried.
     * @returns {number} The number of tasks in the retry queue.
     */
    get retrying() {
        return this.#retrying.length;
    }

/**
     * Gets the number of tasks waiting to be processed in the pending queue.
     * @returns {number} The number of tasks in the pending queue.
     */
    get pending() {
        return this.#pending.length;
    }

/**
     * Gets the number of tasks currently being processed.
     * @returns {number} The number of tasks currently being processed.
     */
    get working() {
        return this.#working;
    }

/**
     * Calls the function and retries if it fails.
     * @param {Function} fn The function to call.
     * @param {Object} options The options for the job.
     * @param {AbortSignal} [options.signal] The AbortSignal to monitor for cancellation.
     * @param {Promise<any>} options.promise The promise to return when the function settles.
     * @param {Function} options.resolve The resolve function for the promise.
     * @param {Function} options.reject The reject function for the promise.
     * @returns {Promise<any>} A promise that resolves when the function is
     * called successfully.
     */
    #call(fn, { signal, promise, resolve, reject }) {

let result;

try {
            result = fn();
        } catch (/** @type {any} */ error) {
            reject(new Error(`Synchronous error: ${error.message}`, { cause: error }));
            return promise;
        }

// if the result is not a promise then reject an error
        if (!result || typeof result.then !== "function") {
            reject(new Error("Result is not a promise."));
            return promise;
        }

this.#working++;
        promise.finally(() => {
            this.#working--;
            this.#processPending();
        })
        // `promise.finally` creates a new promise that may be rejected, so it must be handled.
            .catch(() => { });

// call the original function and catch any ENFILE or EMFILE errors
        Promise.resolve(result)
            .then(value => {
                debug("Function called successfully without retry.");
                resolve(value);
            })
            .catch(error => {
                if (!this.#check(error)) {
                    reject(error);
                    return;
                }

const task = new RetryTask(fn, error, resolve, reject, signal);
                
                debug(`Function failed, queuing for retry with task ${task.id}.`);
                this.#retrying.push(task);

signal?.addEventListener("abort", () => {
                    debug(`Task ${task.id} was aborted due to AbortSignal.`);
                    reject(signal.reason);
                });

this.#processQueue();
            });
        
        return promise;
    }

/**
     * Adds a new retry job to the queue.
     * @template {(...args: unknown[]) => Promise<unknown>} Func
     * @template {Awaited<ReturnType<Func>>} RetVal
     * @param {Func} fn The function to call.
     * @param {object} [options] The options for the job.
     * @param {AbortSignal} [options.signal] The AbortSignal to monitor for cancellation.
     * @returns {Promise<RetVal>} A promise that resolves when the queue is processed.
     */
    retry(fn, { signal } = {}) {

signal?.throwIfAborted();

const { promise, resolve, reject } = createPromise();

this.#pending.push(() => this.#call(fn, { signal, promise, resolve, reject }));
        this.#processPending();
        
        return promise;
    }

/**
     * Processes the pending queue and the retry queue.
     * @returns {void}
     */
    #processAll() {
        if (this.pending) {
            this.#processPending();
        }

if (this.retrying) {
            this.#processQueue();
        }
    }

/**
     * Processes the pending queue to see which tasks can be started.
     * @returns {void}
     */
    #processPending() {

debug(`Processing pending tasks: ${this.pending} pending, ${this.working} working.`);

const available = this.#concurrency - this.working;

if (available <= 0) {
            return;
        }

const count = Math.min(this.pending, available);

for (let i = 0; i < count; i++) {
            const task = this.#pending.shift();
            task?.();
        }

debug(`Processed pending tasks: ${this.pending} pending, ${this.working} working.`);
    }

/**
     * Processes the queue.
     * @returns {void}
     */
    #processQueue() {
        // clear any timer because we're going to check right now
        clearTimeout(this.#timerId);
        this.#timerId = undefined;

debug(`Processing retry queue: ${this.retrying} retrying, ${this.working} working.`);

const processAgain = () => {
            this.#timerId = setTimeout(() => this.#processAll(), 0);
        };

// if there's nothing in the queue, we're done
        const task = this.#retrying.shift();
        if (!task) {
            debug("Queue is empty, exiting.");

if (this.pending) {
                processAgain();
            }
            return;
        }

// if it's time to bail, then bail
        if (isTimeToBail(task, this.#timeout)) {
            debug(`Task ${task.id} was abandoned due to timeout.`);
            task.reject(task.error);
            processAgain();
            return;
        }

// if it's not time to retry, then wait and try again
        if (!isTimeToRetry(task, this.#maxDelay)) {
            debug(`Task ${task.id} is not ready to retry, skipping.`);
            this.#retrying.push(task);
            processAgain();
            return;
        }

// otherwise, try again
        task.lastAttempt = Date.now();
        
        // Promise.resolve needed in case it's a thenable but not a Promise
        Promise.resolve(task.fn())
            // @ts-ignore because we know it's any
            .then(result => {
                debug(`Task ${task.id} succeeded after ${task.age}ms.`);
                task.resolve(result);
            })

// @ts-ignore because we know it's any
            .catch(error => {
                if (!this.#check(error)) {
                    debug(`Task ${task.id} failed with non-retryable error: ${error.message}.`);
                    task.reject(error);
                    return;
                }

// update the task timestamp and push to back of queue to try again
                task.lastAttempt = Date.now();
                this.#retrying.push(task);
                debug(`Task ${task.id} failed, requeueing to try again.`);
            })
            .finally(() => {
                this.#processAll();
            });
    }
}

exports.Retrier = Retrier;

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