steid

steid/src/application/error.rs

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0e162fdfeat: bootstrap_owner and login use cases1mo	1	use crate::domain::{DomainError, repository::RepositoryError};
	2
	3	use super::port::PasswordError;
	4
	5	/// What a use case can fail with.
	6	///
	7	/// Keeps the three failure sources distinct: a broken rule, broken storage, and a
	8	/// broken hash are different problems with different responses, and flattening them
	9	/// makes a storage outage indistinguishable from a validation error.
	10	#[derive(Debug)]
	11	pub enum Error {
	12	/// A domain rule was violated.
	13	Domain(DomainError),
	14	/// Persistence failed.
	15	Repository(RepositoryError),
	16	/// Hashing or verification failed for a reason other than a wrong password.
	17	Password(PasswordError),
	18	}
	19
	20	impl From<DomainError> for Error {
	21	fn from(error: DomainError) -> Self {
	22	Self::Domain(error)
	23	}
	24	}
	25
	26	impl From<RepositoryError> for Error {
	27	fn from(error: RepositoryError) -> Self {
	28	Self::Repository(error)
	29	}
	30	}
	31
	32	impl From<PasswordError> for Error {
	33	fn from(error: PasswordError) -> Self {
	34	Self::Password(error)
	35	}
	36	}
	37
	38	impl std::fmt::Display for Error {
	39	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
	40	match self {
	41	Self::Domain(error) => write!(f, "{error}"),
	42	Self::Repository(error) => write!(f, "{error}"),
	43	Self::Password(error) => write!(f, "{error}"),
	44	}
	45	}
	46	}
	47
	48	impl std::error::Error for Error {
	49	fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
	50	match self {
	51	Self::Domain(error) => Some(error),
	52	Self::Repository(error) => Some(error),
	53	Self::Password(error) => Some(error),
	54	}
	55	}
	56	}
	57
	58	pub type Result<T> = std::result::Result<T, Error>;