//! `hive-bash-daemon` binary — long-running per-agent bash task runner.
//! Spawns `sh -c` subprocesses, monitors completion, writes task state
//! files, and surfaces task state to the agent as todos on the harness's
//! in-agent socket. Serves its MCP tools (`run`/`status`/`kill`) directly
//! over streamable-http on `--http <addr>` — no stdio bridge, no separate
//! bin claude has to respawn every turn.

use anyhow::Result;
use clap::Parser;

#[derive(Parser)]
#[command(name = "hive-bash-daemon", about = "bash-task runner + MCP daemon")]
struct Cli {
    /// Serve the MCP tools over streamable-http on this address (e.g.
    /// `127.0.0.1:8791`). Bind loopback only.
    #[arg(long)]
    http: std::net::SocketAddr,
}

#[tokio::main]
async fn main() -> Result<()> {
    tracing_subscriber::fmt()
        .with_env_filter(
            tracing_subscriber::EnvFilter::try_from_env("RUST_LOG")
                .unwrap_or_else(|_| tracing_subscriber::EnvFilter::new("info")),
        )
        .init();

    let cli = Cli::parse();
    let todo_socket = hive_bash_mcp::paths::agent_socket();

    tracing::info!(
        http = %cli.http,
        todo = %todo_socket.display(),
        "hive-bash-daemon starting"
    );

    // Start the background runner loop — scans for pending tasks and
    // spawns them, pushing todos to the harness on task transitions.
    hive_bash_mcp::runner::spawn_loop(todo_socket);

    // Serve the MCP tools over streamable-http forever.
    hive_bash_mcp::mcp::serve_http(cli.http).await
}