use ahsah::{update_reader, Args, Digest, HashingAlgo, Md5, Sha224, Sha256, Sha384, Sha512};
use clap::Parser;
use std::fs::File;
fn main() {
let args = Args::parse();
if let Some(path) = &args.file {
let mut handle = Box::new(File::open(path).expect("Unable to open file"));
let hash = match &args.algo {
HashingAlgo::Md5 => digest_file::<Md5>(&mut handle),
HashingAlgo::Sha224 => digest_file::<Sha224>(&mut handle),
HashingAlgo::Sha256 => digest_file::<Sha256>(&mut handle),
HashingAlgo::Sha384 => digest_file::<Sha384>(&mut handle),
HashingAlgo::Sha512 => digest_file::<Sha512>(&mut handle),
};
println!("{}", hash);
} else {
panic!("File path not provided");
}
}
fn digest_file<D: Digest + Default>(handle: &mut File) -> String {
let mut digest = D::default();
update_reader(&mut digest, handle).expect("Unable to hash file");
digest.finalize_hex()
}