/**
 * @nahisaho/musubix-codegraph - Knowledge Store Adapter
 *
 * Adapts @musubix/knowledge's KnowledgeStore to the codegraph StorageAdapter interface.
 * Maps codegraph entities/relations to knowledge graph entities/relations.
 *
 * @see REQ-CG-API-005
 * @see DES-CG-006
 */
import type { StorageAdapter, StorageStats, Entity, Relation, GraphQuery } from '../types.js';
import type { KnowledgeStore } from '@musubix/knowledge';
/**
 * Options for KnowledgeAdapter
 */
export interface KnowledgeAdapterOptions {
    /** Whether to auto-save after each mutation (default: false) */
    autoSave?: boolean;
}
/**
 * Knowledge Store adapter for codegraph
 *
 * Bridges @musubix/knowledge's KnowledgeStore to the codegraph StorageAdapter
 * interface, allowing codegraph data to be persisted in the knowledge graph.
 *
 * @example
 * ```typescript
 * import { createKnowledgeStore } from '@musubix/knowledge';
 * import { KnowledgeAdapter } from '@nahisaho/musubix-codegraph/storage';
 *
 * const store = createKnowledgeStore('.knowledge');
 * const adapter = new KnowledgeAdapter(store);
 * await adapter.initialize();
 *
 * await adapter.saveEntity(entity);
 * const retrieved = await adapter.getEntity(entity.id);
 * ```
 */
export declare class KnowledgeAdapter implements StorageAdapter {
    private store;
    private options;
    private initialized;
    private filePathSet;
    constructor(store: KnowledgeStore, options?: KnowledgeAdapterOptions);
    initialize(): Promise<void>;
    close(): Promise<void>;
    saveEntity(entity: Entity): Promise<void>;
    getEntity(id: string): Promise<Entity | null>;
    queryEntities(query: GraphQuery): Promise<Entity[]>;
    deleteEntity(id: string): Promise<void>;
    saveRelation(relation: Relation): Promise<void>;
    getRelations(entityId: string, direction?: 'in' | 'out' | 'both'): Promise<Relation[]>;
    deleteRelation(id: string): Promise<void>;
    bulkSave(entities: Entity[], relations: Relation[]): Promise<void>;
    clear(): Promise<void>;
    getStats(): Promise<StorageStats>;
    /**
     * Rebuild the file path index from stored entities
     */
    private rebuildFilePathIndex;
    /**
     * Save all pending changes to disk
     */
    save(): Promise<void>;
    /**
     * Check if the adapter is initialized
     */
    isInitialized(): boolean;
}
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