bitpill 0.3.5

A personal medication management TUI application built in Rust.
Documentation 
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use thiserror::Error;

use crate::domain::errors::DomainError;

/// Top-level error type for application-layer use cases.
#[derive(Debug, Error)]
pub enum ApplicationError {
    #[error(transparent)]
    Domain(#[from] DomainError),
    #[error(transparent)]
    Storage(#[from] StorageError),
    #[error(transparent)]
    NotFound(#[from] NotFoundError),
    #[error(transparent)]
    Delivery(#[from] DeliveryError),
    #[error("invalid input: {0}")]
    InvalidInput(String),
}

/// Generic infrastructure storage failure that can be reused by repository ports.
#[derive(Debug, Error)]
#[error("storage error: {0}")]
pub struct StorageError(pub String);

/// A required resource does not exist. Generic not-found error for shared use in the application layer.
#[derive(Debug, Error, PartialEq, Eq)]
#[error("not found")]
pub struct NotFoundError;

/// An operation conflicts with existing state (e.g. duplicate entity).
#[derive(Debug, Error, PartialEq, Eq)]
#[error("conflict")]
pub struct ConflictError;

/// Notification delivery failure. Shared across all notification ports.
#[derive(Debug, Error)]
#[error("delivery failed: {0}")]
pub struct DeliveryError(pub String);