/**
 * MCP (Model Context Protocol) types for JSON-RPC 2.0 communication.
 */

export interface MCPServerConfig {
  command: string;
  args?: string[];
  env?: Record<string, string>;
}

export interface MCPTool {
  name: string;
  description: string;
  inputSchema: Record<string, unknown>;
  server: string; // which server provides this tool
}

export interface MCPToolResult {
  content: Array<{
    type: string;
    text?: string;
    data?: string;
    mimeType?: string;
  }>;
  isError?: boolean;
}

// JSON-RPC 2.0 types
export interface JsonRpcRequest {
  jsonrpc: "2.0";
  id: number;
  method: string;
  params?: Record<string, unknown>;
}

export interface JsonRpcResponse {
  jsonrpc: "2.0";
  id: number;
  result?: unknown;
  error?: { code: number; message: string; data?: unknown };
}

export interface MCPInitializeResult {
  protocolVersion: string;
  capabilities: {
    tools?: Record<string, unknown>;
    resources?: Record<string, unknown>;
    prompts?: Record<string, unknown>;
  };
  serverInfo: { name: string; version: string };
}

export interface MCPToolListResult {
  tools: Array<{
    name: string;
    description?: string;
    inputSchema?: Record<string, unknown>;
  }>;
}

export interface MCPCallToolResult {
  content: Array<{
    type: string;
    text?: string;
    data?: string;
    mimeType?: string;
  }>;
  isError?: boolean;
}