mod build;
mod qemu;
mod registry;

use anyhow::Result;
use clap::{Parser, Subcommand};

#[derive(Parser, Debug)]
#[command(about = "Build bootable initrd VMs from container images")]
struct Cli {
    #[command(subcommand)]
    command: Commands,
}

#[derive(Subcommand, Debug)]
enum Commands {
    /// Build initrd from an image (podman image must exist)
    Build {
        /// Image name (e.g. alpine:3.15 or slim:tag)
        image: String,
        /// Size hint (unused in v1 initrd)
        #[arg(short = 's', long, default_value = "512")]
        _size: String,
    },
    /// Launch the VM via QEMU using registry artifacts
    Run {
        /// Image tag / registry subdir name
        name: String,
    },
}

fn main() -> Result<()> {
    let cli = Cli::parse();
    match cli.command {
        Commands::Build { image, _size: _ } => {
            build::build(&image)?;
        }
        Commands::Run { name } => {
            qemu::run(&name)?;
        }
    }
    Ok(())
}