import type { RuntimeEvent, EventFilterOptions, JournalConfig } from "@loomic/types";
import { RuntimeEventEmitter } from "./event-emitter.js";
/**
 * RuntimeJournal — bounded ring buffer of recent runtime events.
 *
 * The journal is just an internal subscriber on the event emitter.
 * It receives no special treatment from the runtime.
 */
export declare class RuntimeJournal {
    private entries;
    private readonly maxEntries;
    private readonly categoryFilter;
    private unsubscribe;
    constructor(config?: Partial<JournalConfig>);
    /**
     * Attach the journal to an event emitter as a subscriber.
     */
    attach(emitter: RuntimeEventEmitter): void;
    /**
     * Detach the journal from the event emitter.
     */
    detach(): void;
    /**
     * Get all entries currently in the journal.
     */
    getEntries(): ReadonlyArray<RuntimeEvent>;
    /**
     * Get entries filtered by type or category.
     */
    query(filter: EventFilterOptions): ReadonlyArray<RuntimeEvent>;
    /**
     * Get entries for a specific run loop cycle.
     */
    getCycle(cycleId: string): ReadonlyArray<RuntimeEvent>;
    /**
     * Clear the journal.
     */
    clear(): void;
    /**
     * Export entries for serialization (returns a new array).
     */
    export(): RuntimeEvent[];
    /**
     * Current number of entries in the journal.
     */
    get size(): number;
}
//# sourceMappingURL=journal.d.ts.map