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use serde::Serialize;
use zbus::zvariant;

#[derive(Debug, zvariant::Type, PartialEq, Eq, Copy, Clone)]
#[zvariant(signature = "s")]
/// Algorithm used to start a new session.
///
/// The communication between the Secret Service and the application can either
/// be encrypted or the items can be sent in plain text.
pub enum Algorithm {
    /// Plain text, per <https://specifications.freedesktop.org/secret-service/latest/ch07s02.html>.
    Plain,
    /// Encrypted, per <https://specifications.freedesktop.org/secret-service/latest/ch07s03.html>.
    Encrypted,
}

impl Serialize for Algorithm {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: serde::Serializer,
    {
        match self {
            Algorithm::Plain => String::serialize(&"plain".to_owned(), serializer),
            Algorithm::Encrypted => String::serialize(
                &"dh-ietf1024-sha256-aes128-cbc-pkcs7".to_owned(),
                serializer,
            ),
        }
    }
}