/**
 * 관계 그래프 서비스
 * 기억 간의 관계를 저장하고 관리하는 서비스
 *
 * 주요 기능:
 * - 관계 추가/삭제/조회
 * - 순환 참조 감지 (DFS)
 * - N-hop 관계 탐색 (BFS)
 * - 신뢰도 갱신
 * - 캐싱 계층 (L1: MemoryCache 10분, L2: PersistentCache 7일)
 * - 배치 삽입 최적화
 */
import Database from 'better-sqlite3';
import type { ICacheService } from '../../../shared/interfaces/cache.interface.js';
import type { AddRelationOptions, GetRelatedMemoriesOptions, GetRelationsOptions, IRelationGraph, MemoryRelation, RelationMetadata } from '../../../shared/types/relation-graph.js';
import type { RelationType } from '../../../shared/types/relation.js';
import type { RelatedMemoryResult } from './relation-graph-traversal.js';
export type { RelatedMemoryResult };
/**
 * 관계 그래프 서비스 (composition 오케스트레이터)
 */
export declare class RelationGraph implements IRelationGraph {
    private cache;
    private cycleDetector;
    private query;
    private traversal;
    private mutations;
    constructor(db: Database.Database, l1Cache: ICacheService<MemoryRelation[]>, l2Cache: ICacheService<MemoryRelation[]>);
    addRelation(sourceId: string, targetId: string, relationType: RelationType, options?: AddRelationOptions): Promise<number>;
    getRelations(memoryId: string, options?: GetRelationsOptions): Promise<MemoryRelation[]>;
    getRelationsBatch(memoryIds: string[], options?: GetRelationsOptions): Promise<Map<string, MemoryRelation[]>>;
    getRelatedMemories(memoryId: string, options?: GetRelatedMemoriesOptions): Promise<RelatedMemoryResult[]>;
    removeRelation(sourceId: string, targetId: string, relationType: RelationType): Promise<boolean>;
    updateConfidence(sourceId: string, targetId: string, relationType: RelationType, newConfidence: number, reason?: string): Promise<boolean>;
    detectCycle(sourceId: string, targetId: string, relationType: RelationType, maxDepth?: number): Promise<boolean>;
    addRelationsBatch(relations: Array<{
        source_id: string;
        target_id: string;
        relation_type: RelationType;
        confidence?: number;
        metadata?: RelationMetadata;
    }>): Promise<{
        insertedIds: number[];
        failed: Array<{
            source_id: string;
            target_id: string;
            relation_type: RelationType;
            error: string;
        }>;
        total: number;
        success: number;
        failedCount: number;
    }>;
}
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