@colyseus/redis-driver/build/RedisDriver.mjs.map

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{
  "version": 3,
  "sources": ["../src/RedisDriver.ts"],
  "sourcesContent": ["import Redis, { Cluster, ClusterNode, ClusterOptions, RedisOptions } from 'ioredis';\n\nimport {\n  IRoomCache,\n  MatchMakerDriver,\n  SortOptions,\n  debugMatchMaking,\n} from '@colyseus/core';\n\nimport { Query } from './Query.js';\nimport { RoomData } from './RoomData.js';\n\nconst ROOMCACHES_KEY = 'roomcaches';\n\nexport class RedisDriver implements MatchMakerDriver {\n  private readonly _client: Redis | Cluster;\n\n  constructor(options?: number | string | RedisOptions | ClusterNode[], clusterOptions?: ClusterOptions) {\n    this._client = (Array.isArray(options))\n      ? new Cluster(options, clusterOptions)\n      : new Redis(options as RedisOptions);\n  }\n\n  public createInstance(initialValues: Partial<IRoomCache> = {}) {\n    return new RoomData(initialValues, this._client);\n  }\n\n  public async has(roomId: string) {\n    return await this._client.hexists(ROOMCACHES_KEY, roomId) === 1;\n  }\n\n  public async query(conditions: Partial<IRoomCache>, sortOptions?: SortOptions) {\n    const rooms = await this.getRooms();\n    return rooms.filter((room) => {\n      if (!room.roomId) {\n        return false;\n      }\n\n      for (const field in conditions) {\n        if (\n          conditions.hasOwnProperty(field) &&\n          room[field] !== conditions[field]\n        ) {\n          return false;\n        }\n      }\n      return true;\n    });\n  }\n\n  public async cleanup(processId: string) {\n    const cachedRooms = await this.query({ processId });\n    debugMatchMaking(\"removing stale rooms by processId %s (%s rooms found)\", processId, cachedRooms.length);\n\n    const itemsPerCommand = 500;\n\n    // remove rooms in batches of 500\n    for (let i = 0; i < cachedRooms.length; i += itemsPerCommand) {\n      await this._client.hdel(ROOMCACHES_KEY, ...cachedRooms.slice(i, i + itemsPerCommand).map((room) => room.roomId));\n    }\n  }\n\n  public findOne(conditions: Partial<IRoomCache>, sortOptions?: SortOptions): Promise<RoomData> {\n    if (typeof conditions.roomId !== 'undefined') {\n      // get room by roomId\n\n      //\n      // TODO: refactor driver APIs.\n      // the API here is legacy from MongooseDriver which made sense on versions <= 0.14.0\n      //\n\n      // @ts-ignore\n      return new Promise<IRoomCache>((resolve, reject) => {\n        this._client.hget(ROOMCACHES_KEY, conditions.roomId).then((roomcache) => {\n          if (roomcache) {\n            resolve(new RoomData(JSON.parse(roomcache), this._client));\n          } else {\n            resolve(undefined);\n          }\n        }).catch(reject);\n      });\n\n    } else {\n      // filter list by other conditions\n      const query = new Query<RoomData>(this.getRooms(conditions['name']), conditions);\n\n      if (sortOptions) {\n        query.sort(sortOptions);\n      }\n\n      return query as any as Promise<RoomData>;\n    }\n  }\n\n  // gets recent room caches w/o making multiple simultaneous reads to REDIS\n  private _concurrentRoomCacheRequest?: Promise<Record<string, string>>;\n  private _roomCacheRequestByName: {[roomName: string]: Promise<RoomData[]>} = {};\n  private getRooms(roomName?: string) {\n    // if there's a shared request, return it\n    if (this._roomCacheRequestByName[roomName] !== undefined) {\n      return this._roomCacheRequestByName[roomName];\n    }\n\n    const roomCacheRequest = this._concurrentRoomCacheRequest || this._client.hgetall(ROOMCACHES_KEY);\n    this._concurrentRoomCacheRequest = roomCacheRequest;\n\n    this._roomCacheRequestByName[roomName] = roomCacheRequest.then((result) => {\n      // clear shared promises so we can read it again\n      this._concurrentRoomCacheRequest = undefined;\n      delete this._roomCacheRequestByName[roomName];\n\n      let roomcaches = Object.entries(result ?? []);\n\n      //\n      // micro optimization:\n      // filter rooms by name before parsing JSON\n      //\n      if (roomName !== undefined) {\n        const roomNameField = `\"name\":\"${roomName}\"`;\n        roomcaches = roomcaches.filter(([, roomcache]) => roomcache.includes(roomNameField));\n      }\n\n      return roomcaches.map(\n        // TODO: probably no need to instantiate RoomData here.\n        ([, roomcache]) => new RoomData(JSON.parse(roomcache), this._client)\n      );\n    });\n\n    return this._roomCacheRequestByName[roomName];\n  }\n\n  public async shutdown() {\n    await this._client.quit();\n  }\n\n  //\n  // only relevant for the test-suite.\n  // not used during runtime.\n  //\n  public clear() {\n    this._client.del(ROOMCACHES_KEY);\n  }\n\n}\n"],
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