use argon2::{Algorithm, Argon2, Params, Version};
use password_hash::{PasswordHash, PasswordHasher, PasswordVerifier, SaltString};

pub trait Encrypt {
    fn encrypt(&self, salt: &SaltString) -> password_hash::Result<String>;

    fn validate(&self, pass_hash: &crate::PassHash) -> password_hash::Result<()>;
}

impl Encrypt for crate::Password {
    fn encrypt(&self, salt: &SaltString) -> password_hash::Result<String> {
        log::debug!("Hashing password {:?}", self);
        Ok(
            Argon2::new(Algorithm::Argon2id, Version::V0x13, Params::default())
                .hash_password(self.as_bytes(), &salt)?
                .to_string(),
        )
    }

    fn validate(&self, pass_hash: &crate::PassHash) -> password_hash::Result<()> {
        log::debug!("Validating password {:?} {:?}", self, pass_hash);

        Argon2::default().verify_password(
            self.as_bytes(),
            &PasswordHash::new(pass_hash.as_str()).expect("Invalid hashed password"),
        )
    }
}

pub fn print_hash() {
    use argon2::password_hash::rand_core::OsRng;
    let salt = SaltString::generate(&mut OsRng);
    println!("{salt}");
}