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"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.minDeadline = minDeadline;
exports.getDeadlineTimeoutString = getDeadlineTimeoutString;
exports.getRelativeTimeout = getRelativeTimeout;
exports.deadlineToString = deadlineToString;
exports.formatDateDifference = formatDateDifference;
function minDeadline(...deadlineList) {
let minValue = Infinity;
for (const deadline of deadlineList) {
const deadlineMsecs = deadline instanceof Date ? deadline.getTime() : deadline;
if (deadlineMsecs < minValue) {
minValue = deadlineMsecs;
}
}
return minValue;
}
const units = [
['m', 1],
['S', 1000],
['M', 60 * 1000],
['H', 60 * 60 * 1000],
];
function getDeadlineTimeoutString(deadline) {
const now = new Date().getTime();
if (deadline instanceof Date) {
deadline = deadline.getTime();
}
const timeoutMs = Math.max(deadline - now, 0);
for (const [unit, factor] of units) {
const amount = timeoutMs / factor;
if (amount < 1e8) {
return String(Math.ceil(amount)) + unit;
}
}
throw new Error('Deadline is too far in the future');
}
/**
* See https://nodejs.org/api/timers.html#settimeoutcallback-delay-args
* In particular, "When delay is larger than 2147483647 or less than 1, the
* delay will be set to 1. Non-integer delays are truncated to an integer."
* This number of milliseconds is almost 25 days.
*/
const MAX_TIMEOUT_TIME = 2147483647;
/**
* Get the timeout value that should be passed to setTimeout now for the timer
* to end at the deadline. For any deadline before now, the timer should end
* immediately, represented by a value of 0. For any deadline more than
* MAX_TIMEOUT_TIME milliseconds in the future, a timer cannot be set that will
* end at that time, so it is treated as infinitely far in the future.
* @param deadline
* @returns
*/
function getRelativeTimeout(deadline) {
const deadlineMs = deadline instanceof Date ? deadline.getTime() : deadline;
const now = new Date().getTime();
const timeout = deadlineMs - now;
if (timeout < 0) {
return 0;
}
else if (timeout > MAX_TIMEOUT_TIME) {
return Infinity;
}
else {
return timeout;
}
}
function deadlineToString(deadline) {
if (deadline instanceof Date) {
return deadline.toISOString();
}
else {
const dateDeadline = new Date(deadline);
if (Number.isNaN(dateDeadline.getTime())) {
return '' + deadline;
}
else {
return dateDeadline.toISOString();
}
}
}
/**
* Calculate the difference between two dates as a number of seconds and format
* it as a string.
* @param startDate
* @param endDate
* @returns
*/
function formatDateDifference(startDate, endDate) {
return ((endDate.getTime() - startDate.getTime()) / 1000).toFixed(3) + 's';
}
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