cotp 1.9.10

Trustworthy, encrypted, command-line TOTP/HOTP authenticator app with import functionality.
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use std::fmt;

use clap::ValueEnum;
use serde::{Deserialize, Serialize};
use zeroize::Zeroize;

#[derive(Serialize, Deserialize, PartialEq, Eq, Debug, Clone, Copy, ValueEnum, Hash, Default)]
#[serde(rename_all = "UPPERCASE")]
pub enum OTPType {
    #[serde(alias = "totp")]
    #[serde(alias = "TOTP")]
    #[default]
    Totp,
    #[serde(alias = "hotp")]
    #[serde(alias = "HOTP")]
    Hotp,
    #[serde(alias = "steam")]
    #[serde(alias = "STEAM")]
    Steam,
    #[serde(alias = "yandex")]
    #[serde(alias = "YANDEX")]
    Yandex,
    #[serde(alias = "motp")]
    #[serde(alias = "MOTP")]
    Motp,
}

impl fmt::Display for OTPType {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let to_string = match self {
            OTPType::Totp => "TOTP",
            OTPType::Hotp => "HOTP",
            OTPType::Steam => "STEAM",
            OTPType::Yandex => "YANDEX",
            OTPType::Motp => "MOTP",
        };
        write!(f, "{to_string}")
    }
}

impl From<&str> for OTPType {
    fn from(s: &str) -> Self {
        match s.to_uppercase().as_str() {
            "HOTP" => Self::Hotp,
            "STEAM" => Self::Steam,
            "YANDEX" => Self::Yandex,
            "MOTP" => Self::Motp,
            _ => Self::Totp,
        }
    }
}

impl Zeroize for OTPType {
    fn zeroize(&mut self) {
        *self = OTPType::Totp;
    }
}