ggen-cli-lib 26.5.19

CLI interface for ggen
Documentation 
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//! Error types for the generated CLI
//!
//! CliError bridges clap-noun-verb errors and domain errors.
//! DomainError represents pure domain logic failures.

use thiserror::Error;

/// CLI-level error that wraps domain errors for the clap-noun-verb runtime
#[derive(Debug, Error)]
pub enum CliError {
    #[error("{0}")]
    Domain(#[from] DomainError),

    #[error("Serialization error: {0}")]
    Serialization(String),

    #[error("{0}")]
    Generic(String),
}

impl From<serde_json::Error> for CliError {
    fn from(e: serde_json::Error) -> Self {
        CliError::Serialization(e.to_string())
    }
}

/// Domain-level error for pure business logic failures
#[derive(Debug, Error)]
pub enum DomainError {
    #[error("{0}")]
    NotFound(String),

    #[error("{0}")]
    Validation(String),

    #[error("{0}")]
    Conflict(String),

    #[error("{0}")]
    Unauthorized(String),

    #[error("{0}")]
    Io(#[from] std::io::Error),

    #[error("{0}")]
    Generic(String),
}