{ "version": 3, "sources": ["../../src/utils/Utils.ts"], "sourcesContent": ["import { nanoid } from 'nanoid';\nimport { type RoomException, type RoomMethodName } from '../errors/RoomExceptions.ts';\n\nimport { debugAndPrintError, debugMatchMaking } from '../Debug.ts';\n\nexport type Type = new (...args: any[]) => T;\nexport type MethodName = string & {\n [K in keyof T]: T[K] extends (...args: any[]) => any ? K : never\n}[keyof T];\n\n/**\n * Utility type that extracts the return type of a method or the type of a property\n * from a given class/object type.\n *\n * - If the key is a method, returns the awaited return type of that method\n * - If the key is a property, returns the type of that property\n */\nexport type ExtractMethodOrPropertyType<\n TClass,\n TKey extends keyof TClass\n> = TClass[TKey] extends (...args: any[]) => infer R\n ? Awaited\n : TClass[TKey];\n\n// remote room call timeouts\nexport const REMOTE_ROOM_SHORT_TIMEOUT = Number(process.env.COLYSEUS_PRESENCE_SHORT_TIMEOUT || 2000);\nexport const MAX_CONCURRENT_CREATE_ROOM_WAIT_TIME = Number(process.env.COLYSEUS_MAX_CONCURRENT_CREATE_ROOM_WAIT_TIME || 0.5);\n\nexport function generateId(length: number = 9) {\n return nanoid(length);\n}\n\nexport function getBearerToken(authHeader: string) {\n return (authHeader && authHeader.startsWith(\"Bearer \") && authHeader.substring(7, authHeader.length)) || undefined;\n}\n\n// nodemon sends SIGUSR2 before reloading\n// (https://github.com/remy/nodemon#controlling-shutdown-of-your-script)\n//\nconst signals: NodeJS.Signals[] = ['SIGINT', 'SIGTERM', 'SIGUSR2'];\n\nexport function registerGracefulShutdown(callback: (err?: Error) => void) {\n /**\n * Gracefully shutdown on uncaught errors\n */\n process.on('uncaughtException', (err) => {\n debugAndPrintError(err);\n callback(err);\n });\n\n signals.forEach((signal) =>\n process.once(signal, () => callback()));\n}\n\nexport function retry(\n cb: Function,\n maxRetries: number = 3,\n errorWhiteList: any[] = [],\n retries: number = 0,\n) {\n return new Promise((resolve, reject) => {\n cb()\n .then(resolve)\n .catch((e: any) => {\n if (\n errorWhiteList.indexOf(e.constructor) !== -1 &&\n retries++ < maxRetries\n ) {\n setTimeout(() => {\n debugMatchMaking(\"retrying due to error (error: %s, retries: %s, maxRetries: %s)\", e.message, retries, maxRetries);\n retry(cb, maxRetries, errorWhiteList, retries).\n then(resolve).\n catch((e2) => reject(e2));\n }, Math.floor(Math.random() * Math.pow(2, retries) * 400));\n\n } else {\n reject(e);\n }\n });\n });\n}\n\nexport function spliceOne(arr: any[], index: number): boolean {\n // manually splice availableRooms array\n // http://jsperf.com/manual-splice\n if (index === -1 || index >= arr.length) {\n return false;\n }\n\n const len = arr.length - 1;\n for (let i = index; i < len; i++) {\n arr[i] = arr[i + 1];\n }\n\n arr.length = len;\n return true;\n}\n\nexport class Deferred {\n public promise: Promise;\n\n public resolve: Function;\n public reject: Function;\n\n constructor(promise?: Promise) {\n this.promise = promise ?? new Promise((resolve, reject) => {\n this.resolve = resolve;\n this.reject = reject;\n });\n }\n\n public then(onFulfilled?: (value: T) => any, onRejected?: (reason: any) => any) {\n return this.promise.then(onFulfilled, onRejected);\n }\n\n public catch(func: (value: any) => any) {\n return this.promise.catch(func);\n }\n\n static reject (reason?: any) {\n return new Deferred(Promise.reject(reason));\n }\n\n static resolve(value?: T) {\n return new Deferred(Promise.resolve(value));\n }\n\n}\n\nexport function merge(a: any, ...objs: any[]): any {\n for (let i = 0, len = objs.length; i < len; i++) {\n const b = objs[i];\n for (const key in b) {\n if (b.hasOwnProperty(key)) {\n a[key] = b[key];\n }\n }\n }\n return a;\n}\n\nexport function wrapTryCatch(\n method: Function,\n onError: (error: RoomException, methodName: RoomMethodName) => void,\n exceptionClass: Type,\n methodName: RoomMethodName,\n rethrow: boolean = false,\n ...additionalErrorArgs: any[]\n) {\n return (...args: any[]) => {\n try {\n const result = method(...args);\n if (typeof (result?.catch) === \"function\") {\n return result.catch((e: Error) => {\n onError(new exceptionClass(e, e.message, ...args, ...additionalErrorArgs), methodName);\n if (rethrow) { throw e; }\n });\n }\n return result;\n } catch (e: any) {\n onError(new exceptionClass(e, e.message, ...args, ...additionalErrorArgs), methodName);\n if (rethrow) { throw e; }\n }\n };\n}\n\n/**\n * Dynamically import a module using either require() or import()\n * based on the current module system (CJS vs ESM).\n *\n * This avoids double-loading packages when running in mixed ESM/CJS environments.\n * Errors are silently caught - await the promise and handle errors at usage site.\n */\nexport function dynamicImport(moduleName: string): Promise {\n // __dirname exists in CJS but not in ESM\n if (\n typeof __dirname !== 'undefined' &&\n // @ts-ignore\n typeof (Bun) === 'undefined' // prevent bun from loading CJS modules\n ) {\n // CJS context - use require()\n try {\n return Promise.resolve(require(moduleName));\n } catch (e: any) {\n // If the error is not a MODULE_NOT_FOUND error, reject with the error.\n if (e.code !== 'MODULE_NOT_FOUND') {\n return Promise.reject(e);\n }\n return Promise.resolve(undefined);\n }\n } else {\n // ESM context - use import()\n const promise = import(/* @vite-ignore */ moduleName);\n promise.catch(() => {}); 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