@colyseus/core/build/utils/Utils.cjs.map

Multiplayer Framework for Node.js.

{
  "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<T> = new (...args: any[]) => T;\nexport type MethodName<T> = 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<R>\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<T = any>(\n  cb: Function,\n  maxRetries: number = 3,\n  errorWhiteList: any[] = [],\n  retries: number = 0,\n) {\n  return new Promise<T>((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<T>(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<T = any> {\n  public promise: Promise<T>;\n\n  public resolve: Function;\n  public reject: Function;\n\n  constructor(promise?: Promise<T>) {\n    this.promise = promise ?? new Promise<T>((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<T = any>(value?: T) {\n    return new Deferred<T>(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<RoomException>,\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<T = any>(moduleName: string): Promise<T> {\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(() => {}); // prevent unhandled rejection warnings\n    return promise;\n  }\n}\n"],
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