#!/usr/bin/env node
/**
 * MCP 数据库万能连接器 - 主服务器
 * 通过 Model Context Protocol 让 Claude Desktop 连接数据库
 */
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
import type { DbAdapter, DbConfig } from '../types/adapter.js';
import type { AppConfig } from '../types/http.js';
import { SchemaCacheConfig } from '../core/database-service.js';
import type { QueryAnalyzer } from '../core/query-analyzer.js';
import type { ProfileManager } from '../core/profile-manager.js';
/**
 * 数据库 MCP 服务器类
 */
export declare class DatabaseMCPServer {
    private server;
    private adapter;
    private config;
    private databaseService;
    private cacheConfig;
    private appConfig;
    private queryAnalyzer;
    private profileManager;
    private activeProfile;
    private planHistory;
    constructor(config?: DbConfig, cacheConfig?: Partial<SchemaCacheConfig>);
    /**
     * v2.16: set app-level config (for metrics, etc.). Optional; defaults are used if not set.
     */
    setAppConfig(appConfig: AppConfig): void;
    /**
     * v2.17: set the QueryAnalyzer. Optional; when not set, query-experience tools
     * will return a "queryAnalyzer disabled" error.
     */
    setQueryAnalyzer(qa: QueryAnalyzer | null): void;
    /**
     * v2.18: set the ProfileManager. Optional; when not set, profile tools
     * return a "profileManager not configured" error.
     */
    setProfileManager(pm: ProfileManager | null): void;
    /**
     * v3.1: set the PlanHistory (optional). When set, index-advisor tools
     * (explain_query_with_advice, compare_query_plans, list_query_plans) become available.
     */
    setPlanHistory(ph: any): void;
    /**
     * v3.2: configure all optional dependencies from a loaded AppConfig.
     * Constructs and wires QueryAnalyzer, ProfileManager, PlanHistory when their
     * respective env flags are enabled. Idempotent — safe to call multiple times.
     */
    configureFromAppConfig(appConfig: AppConfig): Promise<void>;
    /** v2.18: get the active profile name (null if none). */
    getActiveProfile(): string | null;
    /**
     * v5.0.0: 激活 profile 并建立完整连接(复用 ProfileManager.loadProfile 已建立的
     * adapter + service,不重复 createPool)。供 use_profile dispatch 和 MCP 启动时
     * .db-profile 自动激活共用。
     *
     * 必须在 profileManager 设置过之后才能用(否则 throw)。
     *
     * @returns true 表示成功,this.adapter / this.config / this.databaseService / this.activeProfile 全部更新;
     *          false 表示 profile 配置缺失(不应该发生)。
     */
    private activateProfile;
    /**
     * v3.2: set the current MCP session id. stdio uses 'stdio-default'; SSE/Streamable HTTP
     * sets this from the transport's sessionId (in mcp-sse.ts).
     */
    setSessionId(id: string): void;
    /**
     * v3.3.1: detect Claude Code client by clientInfo.name. Claude Code reports
     * names like "claude-code", "Claude Code", "claude-code-ai", depending on
     * version. We match case-insensitively on the substring "claude-code".
     * This is the heuristic the user agreed to in v3.3.1 brainstorming.
     */
    /**
     * v3.2: handle use_tool_group meta-tool — REMOVED in v4.0 (G4)
     * v3.2: handle use_tool_schema meta-tool — REMOVED in v4.0 (G2)
     */
    /**
     * 设置 MCP 协议处理器
     */
    private setupHandlers;
    /**
     * 设置数据库适配器
     */
    setAdapter(adapter: DbAdapter): void;
    /**
     * 获取 MCP Server 实例（用于 SSE/HTTP 传输）
     */
    getServer(): Server;
    /**
     * 连接数据库（不启动传输层）
     */
    connectDatabase(): Promise<void>;
    /**
     * 使用指定的传输层连接 MCP 服务器
     */
    connect(transport: Transport): Promise<void>;
    /**
     * 启动服务器（使用 stdio 传输，用于 Claude Desktop）
     */
    start(): Promise<void>;
    /**
     * 停止服务器
     */
    stop(): Promise<void>;
}
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