/**
 * @fileoverview Tool registry for managing MCP tool definitions and handlers
 * @packageDocumentation
 */
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { z } from 'zod';
import { HandlerFunction, BaseHandlerDeps } from '../handlers/base/handler.interface.js';
import type { DiscoveryConfig } from '../config/default.js';
/**
 * Tool metadata for categorization and filtering
 */
export interface ToolMetadata {
    /** Tool category for grouping */
    category?: string;
    /** Tool version */
    version?: string;
    /** Tool tags for filtering */
    tags?: string[];
    /** Whether the tool is enabled by default */
    enabled?: boolean;
}
/**
 * Tool definition interface
 */
export interface ToolDefinition<TInput = unknown, TOutput = unknown> {
    /** Tool name */
    name: string;
    /** Tool description */
    description: string;
    /** Input schema using Zod - can be ZodType or ZodRawShape */
    inputSchema?: z.ZodType<TInput> | z.ZodRawShape;
    /** Output schema using Zod - can be ZodType or ZodRawShape */
    outputSchema?: z.ZodType<TOutput> | z.ZodRawShape;
    /** Handler function */
    handler: HandlerFunction<TInput>;
    /** Optional metadata for enhanced features */
    metadata?: ToolMetadata;
}
/**
 * Tool discovery options (compatible with DiscoveryConfig)
 */
export type ToolDiscoveryOptions = Partial<DiscoveryConfig>;
/**
 * Registry for managing MCP tools
 */
export declare class ToolRegistry {
    private tools;
    private toolMetadata;
    private discoveredTools;
    private server;
    private defaultDeps;
    constructor(server: McpServer, defaultDeps?: BaseHandlerDeps);
    /**
     * Registers a tool with the MCP server
     * @param tool - The tool definition
     */
    registerTool<TInput = unknown, TOutput = unknown>(tool: ToolDefinition<TInput, TOutput>): void;
    /**
     * Registers multiple tools at once
     * @param tools - Array of tool definitions
     */
    registerTools(tools: ToolDefinition[]): void;
    /**
     * Gets a registered tool by name
     * @param name - Tool name
     * @returns The tool definition or undefined
     */
    getTool(name: string): ToolDefinition | undefined;
    /**
     * Gets all registered tools
     * @returns Array of tool names
     */
    getToolNames(): string[];
    /**
     * Checks if a tool is registered
     * @param name - Tool name
     * @returns True if registered
     */
    hasTool(name: string): boolean;
    /**
     * Updates the default dependencies
     * @param deps - New default dependencies
     */
    updateDefaultDeps(deps: BaseHandlerDeps): void;
    /**
     * Discovers and loads tools from specified directories (requires FEATURE_TOOL_DISCOVERY)
     * @param options - Discovery options
     * @returns Array of discovered tool names
     */
    discoverTools(options?: ToolDiscoveryOptions): Promise<string[]>;
    /**
     * Scans a directory for tool files (internal)
     */
    private scanDirectory;
    /**
     * Checks if a filename matches any of the patterns
     */
    private static matchesPattern;
    /**
     * Loads a tool from a file
     */
    private loadToolFromFile;
    /**
     * Checks if a tool passes the configured filters
     */
    private static passesFilters;
    /**
     * Gets tool metadata
     * @param name - Tool name
     * @returns Tool metadata or undefined
     */
    getToolMetadata(name: string): ToolMetadata | undefined;
    /**
     * Gets tools by category (requires metadata)
     * @param category - Category to filter by
     * @returns Array of tool names in the category
     */
    getToolsByCategory(category: string): string[];
    /**
     * Gets tools by tag (requires metadata)
     * @param tag - Tag to filter by
     * @returns Array of tool names with the tag
     */
    getToolsByTag(tag: string): string[];
    /**
     * Gets all tool categories
     * @returns Array of unique categories
     */
    getCategories(): string[];
    /**
     * Gets all tool tags
     * @returns Array of unique tags
     */
    getTags(): string[];
    /**
     * Gets enhanced tool information including metadata
     * @returns Array of tool information objects
     */
    getToolsInfo(): Array<{
        name: string;
        description: string;
        category?: string;
        version?: string;
        tags?: string[];
        enabled?: boolean;
        discovered?: boolean;
    }>;
}