use std::sync::{Arc, LazyLock};

use avril_core::Snapshot;

pub(crate) fn embedded() -> Arc<Snapshot> {
    static SNAPSHOT: LazyLock<Arc<Snapshot>> = LazyLock::new(|| {
        // SAFETY: Cargo generates this from the same core/runtime dependencies.
        // build.rs rejects cross-target generation; no filesystem artifact is loaded at startup.
        Arc::new(unsafe {
            Snapshot::from_bytes(&include_bytes!(concat!(env!("OUT_DIR"), "/runtime.snapshot"))[..])
                .expect("Invalid embedded runtime snapshot")
        })
    });
    SNAPSHOT.clone()
}