export type TranscriptionMetricsProvider = "sofya_compliance" | "oracle" | "sofya_as_service" | "sofya_whisper_flow" | "stt_wvad" | "apiKey" | null;
export type TelemetryIntegrationProvider = "dynatrace";
export interface DynatraceTelemetryIntegrationOptions {
    globalKey?: string;
    actionName?: string;
}
export interface TelemetryIntegrationOptions {
    enabled?: boolean;
    provider?: TelemetryIntegrationProvider | null;
    dynatrace?: DynatraceTelemetryIntegrationOptions;
}
export interface TelemetryIntegrationWarning {
    provider: TelemetryIntegrationProvider | "none";
    code: "provider_not_configured" | "provider_not_supported" | "runtime_missing" | "dispatch_failed";
    message: string;
    timestamp: number;
    detail?: Record<string, unknown> | null;
}
export type TelemetryMetricType = "counter" | "gauge" | "histogram" | "event";
export type TelemetryTagValue = string | number | boolean;
export type TelemetryTags = Record<string, TelemetryTagValue>;
export interface TelemetryCapabilities {
    transcriptUi: boolean;
    session: boolean;
    connection: boolean;
    recovery: boolean;
    buffering: boolean;
    browserNetwork: boolean;
    audioCapture: boolean;
}
export interface TelemetryRow {
    ts: number;
    sessionId: string;
    metric: string;
    value: number;
    unit?: string;
    type: TelemetryMetricType;
    tags?: TelemetryTags;
}
export interface TelemetryHistogramSummary {
    count: number;
    min: number | null;
    max: number | null;
    sum: number;
    avg: number | null;
    p50: number | null;
    p95: number | null;
    p99: number | null;
}
export interface TelemetrySessionWindow {
    sessionId: string;
    startedAt: number | null;
    endedAt: number | null;
    durationMs: number | null;
}
export interface TelemetryStatus {
    connectionState: "connecting" | "connected" | "reconnecting" | "disconnected" | "stopped" | null;
    websocketState: "connecting" | "open" | "closing" | "closed" | "unavailable" | null;
    browserOnline: boolean | null;
    isRecovering: boolean | null;
    isBufferingAudio: boolean | null;
    isDrainingAudio: boolean | null;
    transportBufferedAmountBytes: number | null;
    pendingBufferedAudioBytes: number | null;
    persistedBufferedAudioBytes: number | null;
    persistedBufferedAudioSegments: number | null;
    totalBufferedAudioBytes: number | null;
    lastDrainProgressAt: number | null;
    drainCycles: number | null;
    drainExitReason: "completed" | "socket_unavailable" | "send_failed" | "stalled" | "stopped" | null;
    reconnectAttempt: number | null;
    nextReconnectDelayMs: number | null;
    remainingReconnectAttempts: number | null;
    finishDeliveryState: "sent" | "skipped_socket_closed" | "timed_out" | null;
    lastDisconnectCode: number | null;
    lastDisconnectReason: string | null;
    networkEffectiveType: string | null;
}
export interface TelemetrySnapshot {
    schemaVersion: 2;
    updatedAt: number;
    provider: TranscriptionMetricsProvider;
    capabilities: TelemetryCapabilities;
    window: TelemetrySessionWindow;
    status: TelemetryStatus;
    counters: Record<string, number>;
    gauges: Record<string, number>;
    histograms: Record<string, TelemetryHistogramSummary>;
    derived: Record<string, number | null>;
}
export interface TelemetryApi {
    startSession(meta?: Record<string, unknown>): string;
    endSession(): void;
    increment(name: string, value?: number, tags?: TelemetryTags): void;
    gauge(name: string, value: number, tags?: TelemetryTags): void;
    observe(name: string, value: number, tags?: TelemetryTags): void;
    event(name: string, data?: Record<string, unknown>): void;
    getTelemetrySnapshot(): TelemetrySnapshot;
    getTelemetryRows(): TelemetryRow[];
    clearTelemetryRows(): void;
    resetTelemetry(): void;
    subscribe(cb: (row: TelemetryRow) => void): () => void;
}
export interface BrowserConnectionInfo {
    effectiveType: string | null;
    downlinkMbps: number | null;
    rttMs: number | null;
}
export type MetricsDrainExitReason = "completed" | "socket_unavailable" | "send_failed" | "stalled" | "stopped" | null;
export type MetricsFinishDeliveryState = "sent" | "skipped_socket_closed" | "timed_out" | null;
export interface TranscriptUiMetrics {
    supported: boolean;
    currentPartialText: string | null;
    lastFinalText: string | null;
    partialCount: number | null;
    finalCount: number | null;
    diarizationCount: number | null;
    utteranceCount: number | null;
    lastFirstPartialLatencyMs: number | null;
    avgFirstPartialLatencyMs: number | null;
    p95FirstPartialLatencyMs: number | null;
    lastFinalLatencyMs: number | null;
    avgFinalLatencyMs: number | null;
    p95FinalLatencyMs: number | null;
    lastStabilizationLatencyMs: number | null;
    avgStabilizationLatencyMs: number | null;
    p95StabilizationLatencyMs: number | null;
}
export interface SessionMetrics {
    supported: boolean;
    sessionStartedAt: number | null;
    sessionStoppedAt: number | null;
    sessionDurationMs: number | null;
    initializationLatencyMs: number | null;
    pauseCount: number | null;
    resumeCount: number | null;
    pausedDurationMs: number | null;
    errorCount: number | null;
    fatalErrorCount: number | null;
}
export interface ConnectionMetrics {
    supported: boolean;
    connectionState: "connecting" | "connected" | "reconnecting" | "disconnected" | "stopped" | null;
    websocketState: "connecting" | "open" | "closing" | "closed" | "unavailable" | null;
    browserOnline: boolean | null;
    connectionOpenCount: number | null;
    connectionCloseCount: number | null;
    connectedDurationMs: number | null;
    reconnectingDurationMs: number | null;
    disconnectedDurationMs: number | null;
    transportBufferedAmountBytes: number | null;
    lastDisconnectCode: number | null;
    lastDisconnectReason: string | null;
}
export interface RecoveryMetrics {
    supported: boolean;
    reconnectCount: number | null;
    recoverySuccessCount: number | null;
    terminalDisconnectCount: number | null;
    currentReconnectAttempt: number | null;
    nextReconnectDelayMs: number | null;
    remainingReconnectAttempts: number | null;
    lastRecoveryDurationMs: number | null;
    avgRecoveryDurationMs: number | null;
    p95RecoveryDurationMs: number | null;
}
export interface BufferingMetrics {
    supported: boolean;
    isBufferingAudio: boolean | null;
    isDrainingAudio: boolean | null;
    pendingBufferedAudioBytes: number | null;
    persistedBufferedAudioBytes: number | null;
    persistedBufferedAudioSegments: number | null;
    totalBufferedAudioBytes: number | null;
    peakBufferedAudioBytes: number | null;
    bufferingDurationMs: number | null;
    drainingDurationMs: number | null;
    lastDrainProgressAt: number | null;
    drainCycles: number | null;
    drainExitReason: "completed" | "socket_unavailable" | "send_failed" | "stalled" | "stopped" | null;
    finishDeliveryState: "sent" | "skipped_socket_closed" | "timed_out" | null;
    avgBufferGrowthRateBytesPerSecond: number | null;
    avgBufferDrainRateBytesPerSecond: number | null;
    bufferStallCount: number | null;
}
export interface BrowserNetworkMetrics {
    supported: boolean;
    onlineTransitionCount: number | null;
    offlineTransitionCount: number | null;
    offlineDurationMs: number | null;
    flapCount: number | null;
    effectiveType: string | null;
    downlinkMbps: number | null;
    rttMs: number | null;
}
export interface AudioCaptureMetrics {
    supported: boolean;
    inputSampleRate: number | null;
    targetSampleRate: number | null;
    channelCount: number | null;
    currentRms: number | null;
    peakRms: number | null;
    currentPeakAmplitude: number | null;
    clippingEventCount: number | null;
    silenceRatio: number | null;
    speechActivityRatio: number | null;
    audioCallbackGapCount: number | null;
    longestAudioCallbackGapMs: number | null;
}
export interface TranscriptionMetricsSnapshot {
    schemaVersion: 1;
    updatedAt: number;
    provider: TranscriptionMetricsProvider;
    transcriptUi: TranscriptUiMetrics;
    session: SessionMetrics;
    connection: ConnectionMetrics;
    recovery: RecoveryMetrics;
    buffering: BufferingMetrics;
    browserNetwork: BrowserNetworkMetrics;
    audioCapture: AudioCaptureMetrics;
}
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