/**
 * PostHog LLM Analytics type definitions.
 *
 * Shared types for PostHog integration. Separated from implementation
 * to allow importing types without pulling in dynamic imports.
 */
/**
 * PostHog tracing options passed to @posthog/ai withTracing wrapper.
 * These enrich captured $ai_generation events with contextual data.
 *
 * @see https://posthog.com/docs/llm-analytics/installation/vercel-ai
 */
export interface PostHogTracingOptions {
    /** Distinct user ID for attribution */
    posthogDistinctId?: string;
    /** Trace ID for grouping related generations */
    posthogTraceId?: string;
    /** Optional model id override */
    posthogModelOverride?: string;
    /** Optional provider override */
    posthogProviderOverride?: string;
    /** Optional explicit token pricing override */
    posthogCostOverride?: PostHogCostOverride;
    /** Custom properties attached to every generation event */
    posthogProperties?: Record<string, unknown>;
    /** When true, input/output content is redacted */
    posthogPrivacyMode?: boolean;
    /** Group analytics (e.g., { company: "companyId" }) */
    posthogGroups?: Record<string, string>;
    /** Sends events immediately (useful for short-lived/serverless contexts) */
    posthogCaptureImmediate?: boolean;
}
export interface PostHogCostOverride {
    inputCost: number;
    outputCost: number;
}
/**
 * Minimal interface for posthog-node PostHog client.
 * Avoids hard dependency on posthog-node types.
 */
export interface PostHogClient {
    capture(params: {
        distinctId: string;
        event: string;
        properties?: Record<string, unknown>;
        groups?: Record<string, string>;
    }): void;
    shutdown?(): Promise<void>;
}
/**
 * Configuration for PostHog LLM Analytics integration.
 *
 * Provide either an existing PostHog client instance or
 * apiKey + host to create one internally.
 *
 * PostHog Evaluations (Relevance, Helpfulness, Hallucination, Toxicity,
 * Jailbreak, and custom prompts) run server-side on captured $ai_generation
 * events. Configure them in PostHog UI under LLM Analytics > Evaluations.
 *
 * @see https://posthog.com/docs/llm-analytics/evaluations
 */
export interface PostHogLLMConfig {
    /** Existing posthog-node client instance */
    client?: PostHogClient;
    /** PostHog project API key (used when client is not provided) */
    apiKey?: string;
    /** PostHog ingestion host (defaults to https://us.i.posthog.com) */
    host?: string;
    /** Default tracing options applied to all wrapped models */
    defaults?: PostHogTracingOptions;
}