export declare const DEFAULT_PROBE_PAGE_CONFIG: ProbePageConfig;
/**
 * What the probe page posts back to its runner (stacksjs/stacks#877).
 *
 * Raw observations only. The page does no statistics and makes no judgement:
 * `buildProbeRecord` in `record.ts` turns this into a published record, which is
 * where the arithmetic and the status rules live and are unit-tested.
 */
/** Configuration the runner embeds in the page. */
export declare interface ProbePageConfig {
  idleMs: number
  loadMs: number
  cpuLoadMsPerFrame: number
  instances: number
  interactionWindowMs: number
  tryNativeFullscreen: boolean
}
/** The result of asking for fullscreen or pointer lock. */
export declare interface RequestOutcome {
  outcome: 'entered' | 'rejected' | 'no-api' | 'timeout' | 'not-attempted'
  detail?: string
}
/** One input event, timed to the frame that could first show it. */
export declare interface InputSample {
  toFrameMs: number
  toPostFrameMs: number
}
export declare interface AudioSnapshot {
  state: string
  baseLatency: number | null
  outputLatency: number | null
  sampleRate: number
}
export declare interface ProbePagePayload {
  config: ProbePageConfig
  userAgent: string
  devicePixelRatio: number
  screen: { width: number, height: number }
  isSecureContext: boolean
  timerResolutionMs: number
  eventTimeStampComparable: boolean
  bridge: { present: boolean, setFullscreen: boolean }
  webgl2: {
    ok: boolean
    error?: string
    version?: string
    shadingLanguageVersion?: string
    vendor?: string
    renderer?: string
    unmaskedVendor?: string
    unmaskedRenderer?: string
    maxTextureSize?: number
    maxSamples?: number
    extensions?: number
  }
  webgpu: {
    present: boolean
    adapter: boolean
    device: boolean
    error?: string
    vendor?: string
    architecture?: string
    description?: string
    maxTextureDimension2D?: number
    features?: number
  }
  frames: {
    idle: number[]
    load: number[]
    triangles: number
    hiddenDuringSampling: boolean
    focused: boolean
  }
  input: {
    pointerdown: InputSample[]
    pointermove: InputSample[]
    keydown: InputSample[]
    eventTimingSupported: boolean
    eventTimingDurations: number[]
  }
  audio: {
    present: boolean
    error?: string
    initial?: AudioSnapshot
    afterUngesturedResume?: AudioSnapshot
    afterGesturedResume?: AudioSnapshot
  }
  gamepad: {
    present: boolean
    connected: number
    ids: string[]
    connectedEventSeen: boolean
  }
  fullscreen: {
    elementApi: boolean
    webkitElementApi: boolean
    enabled: boolean | null
    ungestured: RequestOutcome
    gestured: RequestOutcome
    nativeBridge: RequestOutcome & { sizeBefore?: string, sizeAfter?: string }
  }
  pointerLock: {
    api: boolean
    ungestured: RequestOutcome
    gestured: RequestOutcome
  }
  interaction: {
    windowMs: number
    sawRealInput: boolean
    skipped: boolean
  }
  errors: string[]
}