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use std::error::Error as StdError;
use std::fmt;
use std::io::Error as IOError;
use protobuf::error::ProtobufError;
use tokio_dl_stream_to_disk::error::Error as TDSTDError;
use tokio_dl_stream_to_disk::error::ErrorKind as TDSTDErrorKind;
#[derive(Debug)]
pub enum ErrorKind {
FileExists,
DirectoryExists,
DirectoryMissing,
InvalidApp,
SecurityCheck,
EncryptLogin,
PermissionDenied,
IO(IOError),
Str(String),
Protobuf(ProtobufError),
Other(Box<dyn StdError>),
}
#[derive(Debug)]
pub struct Error {
kind: ErrorKind,
}
impl Error {
pub fn new(k: ErrorKind) -> Error {
Error { kind: k }
}
pub fn kind(&self) -> &ErrorKind {
&self.kind
}
}
impl From<IOError> for Error {
fn from(err: IOError) -> Error {
Error {
kind: ErrorKind::IO(err),
}
}
}
impl From<Box<dyn StdError>> for Error {
fn from(err: Box<dyn StdError>) -> Error {
Error {
kind: ErrorKind::Other(err),
}
}
}
impl From<TDSTDError> for Error {
fn from(err: TDSTDError) -> Error {
match err.kind() {
TDSTDErrorKind::FileExists => Error {
kind: ErrorKind::FileExists,
},
TDSTDErrorKind::DirectoryMissing => Error {
kind: ErrorKind::DirectoryMissing,
},
TDSTDErrorKind::PermissionDenied => Error {
kind: ErrorKind::PermissionDenied,
},
TDSTDErrorKind::IO(_) => {
let err = err.into_inner_io().unwrap();
Error {
kind: ErrorKind::IO(err),
}
}
TDSTDErrorKind::Other(_) => {
let err = err.into_inner_other().unwrap();
Error {
kind: ErrorKind::Other(err),
}
}
}
}
}
impl From<&str> for Error {
fn from(err: &str) -> Error {
Error {
kind: ErrorKind::Str(err.to_string()),
}
}
}
impl From<String> for Error {
fn from(err: String) -> Error {
Error {
kind: ErrorKind::Str(err),
}
}
}
impl From<ProtobufError> for Error {
fn from(err: ProtobufError) -> Error {
Error {
kind: ErrorKind::Protobuf(err),
}
}
}
impl StdError for Error {}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.kind() {
ErrorKind::FileExists => write!(f, "File already exists"),
ErrorKind::InvalidApp => write!(f, "Invalid app response"),
ErrorKind::DirectoryExists => write!(f, "Directory already exists"),
ErrorKind::DirectoryMissing => write!(f, "Destination path provided is not a valid directory"),
ErrorKind::SecurityCheck => write!(f, "Security check is needed, try to visit https://accounts.google.com/b/0/DisplayUnlockCaptcha to unlock, or setup an app-specific password"),
ErrorKind::EncryptLogin => write!(f, "Error encrypting login information: login + password combination is too long. Please use a shorter or app-specific password"),
ErrorKind::PermissionDenied => write!(f, "Cannot create file: permission denied"),
ErrorKind::IO(err) => err.fmt(f),
ErrorKind::Str(err) => err.fmt(f),
ErrorKind::Protobuf(err) => err.fmt(f),
ErrorKind::Other(err) => err.fmt(f),
}
}
}