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use xstack::multiaddr;

/// The error type of this crate.
#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error(transparent)]
    IoError(#[from] std::io::Error),

    #[error("hot reject: {0}")]
    HotReject(String),

    #[error(transparent)]
    ProtoBuf(#[from] protobuf::Error),

    #[error(transparent)]
    ReadError(#[from] unsigned_varint::io::ReadError),

    #[error("receiving packet length is out of range: {0}")]
    OutOfRange(usize),

    #[error(transparent)]
    XStackError(#[from] xstack::Error),

    #[error(transparent)]
    Multiaddr(#[from] multiaddr::Error),

    #[error("circuit/stop, {0}")]
    CircuitStop(String),

    #[error("Invalid multiaddr for circuit connect function")]
    ConnectAddr,

    #[error("The expire field is null in response packet of hop protocol.")]
    ReservationExpire,

    #[error("Expect `DCUtR Connect` message")]
    DCUtRConnect,

    #[error("Expect `DCUtR Sync` message")]
    DCUtRSync,
}

/// The result type of this crate.
pub type Result<T> = std::result::Result<T, Error>;

impl From<Error> for std::io::Error {
    fn from(value: Error) -> Self {
        match value {
            Error::IoError(err) => err,
            err => std::io::Error::new(std::io::ErrorKind::Other, err),
        }
    }
}