@colyseus/core/build/Stats.mjs.map

Multiplayer Framework for Node.js.

{
  "version": 3,
  "sources": ["../src/Stats.ts"],
  "sourcesContent": ["import { MatchMakerState, presence, processId, state } from './MatchMaker.js';\n\nexport type Stats = {\n  roomCount: number;\n  ccu: number;\n}\n\nexport let local: Stats = {\n  roomCount: 0,\n  ccu: 0,\n};\n\nexport async function fetchAll() {\n  // TODO: cache this value to avoid querying too often\n  const allStats: Array<Stats & { processId: string }> = [];\n  const allProcesses = await presence.hgetall(getRoomCountKey());\n\n  for (let remoteProcessId in allProcesses) {\n    if (remoteProcessId === processId) {\n      allStats.push({ processId, roomCount: local.roomCount, ccu: local.ccu, });\n\n    } else {\n      const [roomCount, ccu] = allProcesses[remoteProcessId].split(',').map(Number);\n      allStats.push({ processId: remoteProcessId, roomCount, ccu });\n    }\n  }\n\n  return allStats;\n}\n\nlet lastPersisted = 0;\nlet persistTimeout = undefined;\nconst persistInterval = 1000;\n\nexport function persist(forceNow: boolean = false) {\n  // skip if shutting down\n  if (state === MatchMakerState.SHUTTING_DOWN) {\n    return;\n  }\n\n  /**\n   * Avoid persisting more than once per second.\n   */\n  const now = Date.now();\n\n  if (forceNow || (now - lastPersisted > persistInterval)) {\n    lastPersisted = now;\n    return presence.hset(getRoomCountKey(), processId, `${local.roomCount},${local.ccu}`);\n\n  } else {\n    clearTimeout(persistTimeout);\n    persistTimeout = setTimeout(persist, persistInterval);\n  }\n}\n\nexport function reset(_persist: boolean = true) {\n  local.roomCount = 0;\n  local.ccu = 0;\n\n  if (_persist) {\n    lastPersisted = 0;\n    clearTimeout(persistTimeout);\n    persist();\n  }\n\n  //\n  // Attach local metrics to PM2 (if available)\n  //\n  import('@pm2/io').then((io) => {\n    io.default.metric({ id: 'app/stats/ccu', name: 'ccu', value: () => local.ccu });\n    io.default.metric({ id: 'app/stats/roomcount', name: 'roomcount', value: () => local.roomCount });\n  }).catch(() => { });\n}\n\nexport function excludeProcess(_processId: string) {\n  return presence.hdel(getRoomCountKey(), _processId);\n}\n\nexport async function getGlobalCCU() {\n  const allStats = await fetchAll();\n  return allStats.reduce((prev, next) => prev + next.ccu, 0);\n}\n\n/**\n * Auto-persist every minute.\n */\nlet autoPersistInterval = undefined;\n\nexport function setAutoPersistInterval() {\n  const interval = 60 * 1000;// 1 minute\n\n  autoPersistInterval = setInterval(() => {\n    const now = Date.now();\n\n    if (now - lastPersisted > interval) {\n      persist();\n    }\n  }, interval);\n}\n\nexport function clearAutoPersistInterval() {\n  clearInterval(autoPersistInterval);\n}\n\nfunction getRoomCountKey() {\n  return 'roomcount';\n}"],
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