/**
 * SearchHttpHandler - 语义搜索 HTTP 处理器
 *
 * 提供 /-/search 端点，支持基于向量的语义搜索。
 *
 * 端点：
 * - GET  {path}/-/search?q=...     简单搜索
 * - POST {path}/-/search           复杂搜索（支持 filter 等）
 */
import { HttpHandler } from '@solid/community-server';
import type { HttpHandlerInput } from '@solid/community-server';
import type { CredentialsExtractor, PermissionReader, Authorizer } from '@solid/community-server';
import type { VectorStore } from '../../storage/vector/VectorStore';
import type { EmbeddingService } from '../../ai/service/EmbeddingService';
import type { SparqlEngine } from '../../storage/sparql/SubgraphQueryEngine';
export interface SearchHttpHandlerOptions {
    sidecarPath?: string;
    defaultModel?: string;
    defaultLimit?: number;
}
export declare class SearchHttpHandler extends HttpHandler {
    protected readonly logger: import("global-logger-factory").Logger<unknown>;
    private readonly vectorStore;
    private readonly embeddingService;
    private readonly sparqlEngine;
    private readonly credentialsExtractor;
    private readonly permissionReader;
    private readonly authorizer;
    private readonly sidecarPath;
    private readonly defaultModel;
    private readonly defaultLimit;
    constructor(vectorStore: VectorStore, embeddingService: EmbeddingService, sparqlEngine: SparqlEngine, credentialsExtractor: CredentialsExtractor, permissionReader: PermissionReader, authorizer: Authorizer, options?: SearchHttpHandlerOptions);
    canHandle({ request }: HttpHandlerInput): Promise<void>;
    handle({ request, response }: HttpHandlerInput): Promise<void>;
    /**
     * 解析搜索请求
     */
    private parseSearchRequest;
    /**
     * 执行搜索
     */
    private executeSearch;
    /**
     * 获取 AI 凭据
     */
    private getAiCredential;
    /**
     * 将向量 ID 转换回 subject URI
     * 注意：这是一个简化实现，实际需要维护 ID -> URI 的映射
     */
    private vectorIdToSubject;
    private handleError;
    private authorizeFor;
    private parseUrl;
    private readJsonBody;
    private sendJsonResponse;
    private sendErrorResponse;
    private writeOptions;
}