pub mod fs;

use clap::Parser;
use fuser::MountOption;
use std::path::PathBuf;
use furumi_client_core::FurumiClient;

#[derive(Parser, Debug)]
#[command(version, about, long_about = None)]
struct Args {
    /// Server address to connect to
    #[arg(short, long, env = "FURUMI_SERVER", default_value = "http://[::1]:50051")]
    server: String,

    /// Authentication Bearer token (leave empty if auth is disabled on server)
    #[arg(short, long, env = "FURUMI_TOKEN", default_value = "")]
    token: String,

    /// Mount point directory
    #[arg(short, long, env = "FURUMI_MOUNT")]
    mount: PathBuf,
}

fn main() -> Result<(), Box<dyn std::error::Error>> {
    tracing_subscriber::fmt::init();
    
    let args = Args::parse();
    
    if !args.mount.exists() || !args.mount.is_dir() {
        eprintln!("Error: Mount point {:?} does not exist or is not a directory", args.mount);
        std::process::exit(1);
    }
    
    // Create a robust tokio runtime for the background gRPC work
    let rt = tokio::runtime::Builder::new_multi_thread()
        .enable_all()
        .build()?;
        
    let client = rt.block_on(async {
        FurumiClient::connect(&args.server, &args.token).await
    })?;

    let fs = fs::FurumiFuse::new(client, rt.handle().clone());

    let options = vec![
        MountOption::RO,
        MountOption::FSName("furumi-ng".to_string()),
        MountOption::NoExec, // Better security for media mount
    ];

    println!("Mounting Furumi-ng to {:?}", args.mount);
    fuser::mount2(fs, args.mount, &options)?;

    Ok(())
}