getRefreshLeadMs (services/tokenRefresh.ts)

Utility to compute proactive token refresh lead times.

// Source: https://github.com/jaccen/AIRoute | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
// @ts-nocheck
import { AsyncLocalStorage } from "node:async_hooks";
import { PROVIDERS, OAUTH_ENDPOINTS } from "../config/constants.ts";
import { getGitHubCopilotRefreshHeaders } from "../config/providerHeaderProfiles.ts";
import { pbkdf2Sync } from "node:crypto";
import { runWithProxyContext } from "../utils/proxyFetch.ts";
import { serializeRefresh, wasRefreshTokenRotated } from "./refreshSerializer.ts";
import { WINDSURF_CONFIG } from "@/lib/oauth/constants/oauth";
import { buildGitLabOAuthEndpoints, resolveGitLabOAuthBaseUrl } from "@/lib/oauth/gitlab";

// Default token expiry buffer

... (truncated -- full source via MCP)