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use failure::{Backtrace, Context, Error, Fail}; use std::fmt; #[derive(Debug)] pub struct FeedApiError { inner: Context<FeedApiErrorKind>, } #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)] pub enum FeedApiErrorKind { #[fail(display = "Error reading config file")] Config, #[fail(display = "Error parsing Url")] Url, #[fail(display = "Error logging in")] Login, #[fail(display = "Error during API call")] Api, #[fail(display = "IO Error")] IO, #[fail(display = "Error during portal callback")] Portal, #[fail(display = "Error parsing feed url")] ParseFeed, #[fail(display = "Feature unsupported by implementation")] Unsupported, #[fail(display = "Failed to load API secrets")] Secret, #[fail(display = "Failed to load embeded resource file")] Resource, #[fail(display = "No valid CA certificate available")] TLSCert, #[fail(display = "HTTP Basic Auth required/failed")] HTTPAuth, #[fail(display = "Error en/decrypting a password")] Encryption, #[fail(display = "Error parsing Json file")] Json, #[fail(display = "Unknown Error")] Unknown, } impl Fail for FeedApiError { fn cause(&self) -> Option<&dyn Fail> { self.inner.cause() } fn backtrace(&self) -> Option<&Backtrace> { self.inner.backtrace() } } impl fmt::Display for FeedApiError { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&self.inner, f) } } impl FeedApiError { pub fn kind(&self) -> FeedApiErrorKind { *self.inner.get_context() } } impl From<FeedApiErrorKind> for FeedApiError { fn from(kind: FeedApiErrorKind) -> FeedApiError { FeedApiError { inner: Context::new(kind) } } } impl From<Context<FeedApiErrorKind>> for FeedApiError { fn from(inner: Context<FeedApiErrorKind>) -> FeedApiError { FeedApiError { inner } } } impl From<Error> for FeedApiError { fn from(_: Error) -> FeedApiError { FeedApiError { inner: Context::new(FeedApiErrorKind::Unknown), } } }