51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
import { isNodeProcess } from "is-node-process";
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const SET_TIMEOUT_MAX_ALLOWED_INT = 2147483647;
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const MIN_SERVER_RESPONSE_TIME = 100;
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const MAX_SERVER_RESPONSE_TIME = 400;
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const NODE_SERVER_RESPONSE_TIME = 5;
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function getRealisticResponseTime() {
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if (isNodeProcess()) {
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return NODE_SERVER_RESPONSE_TIME;
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}
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return Math.floor(
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Math.random() * (MAX_SERVER_RESPONSE_TIME - MIN_SERVER_RESPONSE_TIME) + MIN_SERVER_RESPONSE_TIME
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);
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}
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async function delay(durationOrMode) {
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let delayTime;
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if (typeof durationOrMode === "string") {
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switch (durationOrMode) {
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case "infinite": {
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delayTime = SET_TIMEOUT_MAX_ALLOWED_INT;
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break;
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}
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case "real": {
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delayTime = getRealisticResponseTime();
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break;
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}
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default: {
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throw new Error(
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`Failed to delay a response: unknown delay mode "${durationOrMode}". Please make sure you provide one of the supported modes ("real", "infinite") or a number.`
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);
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}
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}
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} else if (typeof durationOrMode === "undefined") {
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delayTime = getRealisticResponseTime();
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} else {
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if (durationOrMode > SET_TIMEOUT_MAX_ALLOWED_INT) {
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throw new Error(
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`Failed to delay a response: provided delay duration (${durationOrMode}) exceeds the maximum allowed duration for "setTimeout" (${SET_TIMEOUT_MAX_ALLOWED_INT}). This will cause the response to be returned immediately. Please use a number within the allowed range to delay the response by exact duration, or consider the "infinite" delay mode to delay the response indefinitely.`
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);
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}
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delayTime = durationOrMode;
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}
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return new Promise((resolve) => setTimeout(resolve, delayTime));
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}
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export {
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MAX_SERVER_RESPONSE_TIME,
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MIN_SERVER_RESPONSE_TIME,
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NODE_SERVER_RESPONSE_TIME,
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SET_TIMEOUT_MAX_ALLOWED_INT,
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delay
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};
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//# sourceMappingURL=delay.mjs.map
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