/**
 * Analytics-related type definitions for NeuroLink
 * Comprehensive usage tracking, performance metrics, and cost analysis types
 */
import type { JsonValue, UnknownRecord } from "./common.js";
import type { ClaudeLimitSnapshot } from "./subscription.js";
/**
 * Token usage information (consolidated from multiple sources)
 */
export type TokenUsage = {
    input: number;
    output: number;
    total: number;
    cacheCreationTokens?: number;
    /**
     * The 1-hour-TTL share of `cacheCreationTokens` (a subset, not additive —
     * Anthropic's `cache_creation.ephemeral_1h_input_tokens` is reported inside
     * the same `cache_creation_input_tokens` total). Undefined/0 keeps today's
     * pricing exactly, since `calculateCost` treats every write as 5-minute-TTL
     * unless told otherwise.
     */
    cacheCreation1hTokens?: number;
    cacheReadTokens?: number;
    reasoning?: number;
    cacheSavingsPercent?: number;
};
/** Per-token dollar rates for one model in the pricing table. */
export type ModelPricingRates = {
    input: number;
    output: number;
    cacheRead?: number;
    cacheCreation?: number;
    /**
     * 1-hour TTL cache-write rate (Anthropic's 2x-of-input multiplier),
     * separate from `cacheCreation`'s 5-minute (1.25x) rate so a 1h-TTL
     * write is never silently priced at the 5m rate. `calculateCost()`
     * applies it to `TokenUsage.cacheCreation1hTokens`, the 1h share of the
     * cache-write total that the Claude route, the Vertex passthrough and
     * the Codex outbound fallback capture. Set on every Claude model; a
     * model without it prices that share at `cacheCreation`.
     */
    cacheCreation1h?: number;
};
/**
 * Error info type for analytics
 */
export type AnalyticsErrorInfo = {
    message: string;
    code?: string | number;
    stack?: string;
    details?: UnknownRecord;
};
/**
 * Analytics data structure (consolidated from core analytics)
 */
export type AnalyticsData = {
    provider: string;
    model?: string;
    tokenUsage: TokenUsage;
    requestDuration: number;
    timestamp: string;
    cost?: number;
    context?: JsonValue;
    /** Number of agentic steps (model calls) the turn used. */
    stepsUsed?: number;
    /** Number of external tool calls the turn made (final_result excluded). */
    toolCallCount?: number;
    /** Why the turn ended — see GenerateStopReason. */
    stopReason?: string;
    /** Wall-clock duration of the turn in milliseconds. */
    elapsedMs?: number;
    /** Verbatim provider finish/stop reason for the terminal model call. */
    rawFinishReason?: string;
    /**
     * Account limit state observed on this request — subscription window
     * headroom, reset times, and (via the NeuroLink Claude proxy) which account
     * served it and how much the pool has left. Present for Anthropic traffic
     * whose response carried rate-limit headers.
     */
    limits?: ClaudeLimitSnapshot;
};
/**
 * Stream Analytics Data - Enhanced for performance tracking
 */
export type StreamAnalyticsData = {
    /** Tool execution results with timing */
    toolResults?: Promise<Array<unknown>>;
    /** Tool calls made during stream */
    toolCalls?: Promise<Array<unknown>>;
    /** Stream performance metrics */
    performance?: {
        startTime: number;
        endTime?: number;
        chunkCount: number;
        avgChunkSize: number;
        totalBytes: number;
    };
    /** Provider analytics */
    providerAnalytics?: AnalyticsData;
};
export type PerformanceMetrics = {
    startTime: number;
    endTime?: number;
    duration?: number;
    memoryStart: NodeJS.MemoryUsage;
    memoryEnd?: NodeJS.MemoryUsage;
    memoryDelta?: {
        rss: number;
        heapTotal: number;
        heapUsed: number;
        external: number;
    };
};
export type TimeRangeOption = {
    start: Date;
    end: Date;
};
/**
 * Quality score subset captured on an analytics telemetry record.
 */
export type AnalyticsQualityScore = {
    overall: number;
    relevance: number;
    accuracy: number;
    completeness: number;
    reasoning?: string;
};
/**
 * Single request lifecycle record for advanced analytics aggregation.
 */
export type TelemetryRecord = {
    id: string;
    provider: string;
    model: string;
    userId?: string;
    teamId?: string;
    department?: string;
    timestamp: number;
    latency: number;
    inputTokens: number;
    outputTokens: number;
    totalTokens: number;
    cost: number;
    isError: boolean;
    errorMessage?: string;
    qualityScore?: AnalyticsQualityScore;
};
/**
 * Pluggable storage backend for analytics telemetry records.
 */
export type AnalyticsStorage = {
    /** Save a telemetry record */
    saveRecord(record: TelemetryRecord): Promise<void>;
    /** Retrieve all records */
    getRecords(): Promise<TelemetryRecord[]>;
    /** Clear storage */
    clear(): Promise<void>;
};
/**
 * Options for the bounded in-memory analytics storage backend.
 */
export type InMemoryAnalyticsStorageOptions = {
    /** Maximum records to retain. Oldest records are evicted when exceeded. */
    maxRecords?: number;
};
export type ProviderMetricsOptions = {
    providers?: string[];
    timeRange?: TimeRangeOption | string;
    metrics?: string[];
};
export type ProviderMetricItem = {
    name: string;
    averageLatency: number;
    averageResponseTime: number;
    totalTokens: number;
    inputTokens: number;
    outputTokens: number;
    errorRate: number;
    successRate: number;
    costPerToken: number;
    totalCost: number;
    requestCount: number;
};
export type ProviderMetricsResult = {
    averageLatency: number;
    averageResponseTime: number;
    totalTokens: number;
    inputTokens: number;
    outputTokens: number;
    errorRate: number;
    successRate: number;
    costPerToken: number;
    totalCost: number;
    requestCount: number;
    providers: ProviderMetricItem[];
};
export type CostAnalysisOptions = {
    timeRange?: TimeRangeOption | string;
    groupBy?: string | string[];
    includeProjections?: boolean;
};
export type CostGroupItem = {
    groupKey: string;
    provider?: string;
    model?: string;
    userId?: string;
    totalCost: number;
    costPerToken: number;
    inputTokens: number;
    outputTokens: number;
    totalTokens: number;
    requestCount: number;
};
export type CostAnalysisResult = {
    totalCost: number;
    totalTokens: number;
    inputTokens: number;
    outputTokens: number;
    requestCount: number;
    groups: Record<string, CostGroupItem>;
    providers: CostGroupItem[];
    projections?: {
        nextMonth: number;
        nextQuarter: number;
    };
};
export type TeamAnalyticsOptions = {
    teamId?: string;
    departments?: string[];
    metrics?: string[];
    timeRange?: TimeRangeOption | string;
};
export type TeamAnalyticsResult = {
    totalRequests: number;
    uniqueUsers: number;
    providersUsed: string[];
    costBreakdownByProvider: Record<string, number>;
    costBreakdownByUser: Record<string, number>;
    qualityScores?: AnalyticsQualityScore;
};