chabeau 0.7.3

A full-screen terminal chat interface that connects to various AI APIs for real-time conversations
Documentation 
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use std::error::Error;
use std::fmt;
use std::sync::Arc;

/// Describes failures when attempting to access the system keyring.
///
/// Recoverable errors indicate that the credential backend was
/// temporarily unavailable (for example when the keychain service is
/// locked or inaccessible). Permanent errors surface the underlying
/// cause directly so callers can report them to the user.
#[derive(Debug)]
pub enum KeyringAccessError {
    /// Temporary failure (e.g., keyring locked or service unavailable).
    ///
    /// The operation may succeed if retried after the user unlocks
    /// the keyring or the service becomes available.
    Recoverable(keyring::Error),

    /// Permanent failure that cannot be resolved by retrying.
    ///
    /// Examples include missing entries, invalid credentials,
    /// or unsupported platform operations.
    Permanent(keyring::Error),
}

impl KeyringAccessError {
    fn inner(&self) -> &keyring::Error {
        match self {
            KeyringAccessError::Recoverable(err) | KeyringAccessError::Permanent(err) => err,
        }
    }

    /// Returns true when the error represents a temporary outage of the
    /// platform keyring backend.
    pub fn is_recoverable(&self) -> bool {
        matches!(self, KeyringAccessError::Recoverable(_))
    }
}

impl From<keyring::Error> for KeyringAccessError {
    fn from(err: keyring::Error) -> Self {
        match err {
            keyring::Error::PlatformFailure(_) | keyring::Error::NoStorageAccess(_) => {
                KeyringAccessError::Recoverable(err)
            }
            other => KeyringAccessError::Permanent(other),
        }
    }
}

impl fmt::Display for KeyringAccessError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.inner())
    }
}

impl Error for KeyringAccessError {
    fn source(&self) -> Option<&(dyn Error + 'static)> {
        Some(self.inner())
    }
}

#[derive(Clone, Debug)]
pub struct SharedKeyringAccessError(Arc<KeyringAccessError>);

impl SharedKeyringAccessError {
    pub fn new(error: KeyringAccessError) -> Self {
        Self(Arc::new(error))
    }

    pub fn is_recoverable(&self) -> bool {
        self.0.is_recoverable()
    }
}

impl fmt::Display for SharedKeyringAccessError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        fmt::Display::fmt(&*self.0, f)
    }
}

impl Error for SharedKeyringAccessError {
    fn source(&self) -> Option<&(dyn Error + 'static)> {
        self.0.source()
    }
}