use std::fs::File;

use std::io::Read;

use std::path::Path;

use crate::error::Error;

// Compute the sha256 hash of a bitstring.

pub fn sha256_hash(data: &[u8]) -> Box<[u8]> {

    use sha2::Digest;

    sha2::Sha256::digest(data).as_slice().into()

}

pub fn read_binary_file(path: impl AsRef<Path>) -> Result<Box<[u8]>, Error> {

    let mut buffer = Vec::new();

    File::open(path)?.read_to_end(&mut buffer)?;

    Ok(buffer.into())

}