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use crate::channel::ChannelMode;
use std::error::Error as StdError;
use std::fmt;
pub type Result<T> = std::result::Result<T, Error>;
#[derive(Debug)]
pub struct Error {
kind: ErrorKind,
}
impl StdError for Error {}
impl Error {
pub fn new(kind: ErrorKind) -> Self {
Error { kind }
}
}
#[derive(Debug)]
pub enum ErrorKind {
ConnectToServer,
WriteToStream,
ReadStream,
SwitchMode,
RunCommand,
QueryResponseError(&'static str),
WrongSonicResponse,
UnsupportedCommand((&'static str, Option<ChannelMode>)),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::result::Result<(), fmt::Error> {
match self.kind {
ErrorKind::ConnectToServer => write!(f, "Cannot connect to server"),
ErrorKind::WriteToStream => write!(f, "Cannot write data to stream"),
ErrorKind::ReadStream => write!(f, "Cannot read sonic response from stream"),
ErrorKind::SwitchMode => write!(f, "Cannot switch channel mode"),
ErrorKind::RunCommand => write!(f, "Cannot run command in current mode"),
ErrorKind::QueryResponseError(message) => {
write!(f, "Error in query response: {}", message)
}
ErrorKind::WrongSonicResponse => {
write!(f, "Sonic response are wrong. Please write issue to github.")
}
ErrorKind::UnsupportedCommand((command_name, channel_mode)) => {
if let Some(channel_mode) = channel_mode {
write!(
f,
"You cannot use `{}` command in {} sonic channel mode",
command_name, channel_mode
)
} else {
write!(
f,
"You need to connect to sonic channel before use {} command",
command_name
)
}
}
}
}
}