extern crate message_verifier;

use message_verifier::{AesGcmEncryptor, DerivedKeyParams, Encryptor};

use std::io;
use std::io::Read;
use std::str;

fn main() {
    let key_base = "helloworld";
    let salt = "test salt";

    let dkp = DerivedKeyParams::default();
    let encryptor = AesGcmEncryptor::new(key_base, salt, dkp).unwrap();

    let mut message = String::new();

    match io::stdin().read_to_string(&mut message) {
        Err(_) => panic!("Read failed"),
        Ok(_) => match encryptor.decrypt_and_verify(message.trim()) {
            Ok(ref decrypted_result) => {
                println!(
                    "Decrypted Message: {}",
                    str::from_utf8(decrypted_result).expect("Encryptor failed")
                );
            }

            Err(e) => panic!("Encryptor Error: {:?}", e),
        },
    }
}