//! # McpMux MCP Library
//!
//! MCP protocol implementation, client pool, and gateway functionality.
//!
//! This crate provides:
//! - MCP client management (stdio and HTTP transports)
//! - Connection pooling by config hash
//! - Request routing and aggregation
//! - OAuth token management for remote servers
//!
//! ## Architecture
//!
//! ```text
//! ┌─────────────────────────────────────────────────────────────────┐
//! │ ClientPool │
//! │ ┌─────────────────────────────────────────────────────────┐ │
//! │ │ HashMap<pool_key, PooledClient> │ │
//! │ │ │ │
//! │ │ pool_key = server_id + ":" + sha256(config+credential) │ │
//! │ │ │ │
//! │ │ "github:aabbccdd" → McpSession (work token) │ │
//! │ │ "github:11223344" → McpSession (personal token) │ │
//! │ └─────────────────────────────────────────────────────────┘ │
//! └─────────────────────────────────────────────────────────────────┘
//! │
//! ▼
//! ┌─────────────────────────────────────────────────────────────────┐
//! │ ServerManager │
//! │ ┌──────────────────┐ ┌──────────────────┐ │
//! │ │ StdioTransport │ │ HttpTransport │ │
//! │ │ (child process) │ │ (HTTP client) │ │
//! │ └──────────────────┘ └──────────────────┘ │
//! └─────────────────────────────────────────────────────────────────┘
//! ```
//!
//! ## Usage
//!
//! ```rust,ignore
//! use mcpmux_mcp::{ServerManager, ClientPool, PoolConfig};
//! use mcpmux_core::Server;
//!
//! // Create server manager
//! let manager = ServerManager::new();
//!
//! // Connect to a server
//! let server = Server::stdio("github", "GitHub", "npx", vec![
//! "-y".to_string(),
//! "@modelcontextprotocol/server-github".to_string(),
//! ]);
//!
//! let mut env = HashMap::new();
//! env.insert("GITHUB_TOKEN".to_string(), "ghp_xxx".to_string());
//!
//! manager.connect(&server, env).await?;
//!
//! // List tools
//! let tools = manager.get_tools("github").await;
//!
//! // Call a tool
//! let result = manager.call_tool("github", "search_code", Some(json!({
//! "query": "rust async"
//! }))).await?;
//! ```
pub mod client_pool;
pub mod transports;
pub use client_pool::{ClientPool, PoolConfig, PooledClient};
pub use transports::{
ConnectionStatus, McpClient, McpClientHandler, McpSession, ServerInfo, ServerManager,
};
