// Host bridge helpers for TypeBox invoke (minimal, v2)

pub type InvokeFn =
    unsafe extern "C" fn(u32, u32, u32, *const u8, usize, *mut u8, *mut usize) -> i32;

// Call invoke_id with a temporary output buffer; returns (code, bytes_written, buffer)
pub fn invoke_alloc(
    invoke: InvokeFn,
    type_id: u32,
    method_id: u32,
    instance_id: u32,
    tlv_args: &[u8],
) -> (i32, usize, Vec<u8>) {
    let mut out = vec![0u8; 1024];
    let mut out_len: usize = out.len();
    let code = unsafe {
        invoke(
            type_id,
            method_id,
            instance_id,
            tlv_args.as_ptr(),
            tlv_args.len(),
            out.as_mut_ptr(),
            &mut out_len,
        )
    };
    (code, out_len, out)
}