use argon2::{
	Argon2,
	password_hash::{
		Error, PasswordHash, PasswordHasher, PasswordVerifier, SaltString,
		rand_core::OsRng,
	},
};

pub fn hash_password(password: &str) -> Result<String, Error> {
	let salt = SaltString::generate(&mut OsRng);
	let argon2 = if std::env::var("RUST_ENV").unwrap_or_default() == "test" || std::env::var("RUST_ENV").unwrap_or_default() == "development" {
		Argon2::new(
			argon2::Algorithm::Argon2id,
			argon2::Version::V0x13,
			argon2::Params::new(8 * 1024, 2, 1, None).unwrap() // 8MB, 2 iterations, 1 thread
		)
	} else {
		Argon2::default()
	};
	let password_hash = argon2
		.hash_password(password.as_bytes(), &salt)?
		.to_string();
	Ok(password_hash)
}

pub fn verify_password(password: &str, hash: &str) -> Result<bool, Error> {
	let parsed_hash = PasswordHash::new(hash)?;
	let argon2 = Argon2::default();
	match argon2.verify_password(password.as_bytes(), &parsed_hash) {
		Ok(_) => Ok(true),
		Err(_) => Ok(false),
	}
}