/**
 * Child recorder — handles child session recording extracted from index.ts.
 *
 * Owns the responsibility of capturing child session turns and journey
 * entries without creating directories. Child sessions write only to
 * their parent's child .json file (D-03, D-05).
 *
 * @module session-tracker/child-recorder
 */
import type { ChildWriter } from "./persistence/child-writer.js";
/**
 * Input from the chat.message hook for child recording.
 */
export interface ChildMessageInput {
    sessionID: string;
    agent?: string;
    model?: string | {
        providerID: string;
        modelID: string;
    };
    messageID?: string;
}
/**
 * Output from the chat.message hook for child recording.
 */
export interface ChildMessageOutput {
    message: unknown;
    parts: unknown[];
}
/**
 * Dependencies injected into the child recorder.
 */
export interface ChildRecorderDeps {
    /** Child writer for .json persistence. */
    childWriter: ChildWriter;
    /** Set of bootstrapped session IDs (mutated by recorder). */
    bootstrappedSessions: Set<string>;
    /** Route establishment for child sessions. */
    ensureChildRoute: (parentID: string, childSessionID: string) => Promise<void>;
}
/**
 * Child recorder that captures child session messages to parent .json files.
 *
 * Extracted from index.ts to reduce LOC and isolate child-recording logic.
 * Child sessions never get their own directory (D-03, D-05).
 *
 * Usage:
 * ```typescript
 * const recorder = new ChildRecorder({ childWriter, bootstrappedSessions, ensureChildRoute })
 * await recorder.recordChildMessage(parentID, input, output)
 * ```
 */
export declare class ChildRecorder {
    private readonly childWriter;
    private readonly bootstrappedSessions;
    private readonly ensureChildRoute;
    /**
     * @param deps - Injected dependencies.
     */
    constructor(deps: ChildRecorderDeps);
    /**
     * Records a child session message to the parent's child .json file.
     *
     * Skips ensureSessionReady entirely — no directory creation.
     * Captures both turn data and journey entries for assistant messages.
     *
     * @param parentID - The parent session ID to record under.
     * @param sessionID - The child session ID.
     * @param input - Hook input containing agent, model, messageID.
     * @param output - Hook output containing message and parts.
     */
    recordChildMessage(parentID: string, sessionID: string, input: ChildMessageInput, output: ChildMessageOutput): Promise<void>;
}
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