//! Error types for handle resolution operations.
//!
//! This module defines all error types used throughout the handle resolver components,
//! following the QuickDID error format conventions.

use thiserror::Error;

/// Errors that can occur during handle resolution
#[derive(Error, Debug)]
pub enum HandleResolverError {
    /// Failed to resolve subject through DNS or HTTP
    #[error("error-quickdid-resolve-1 Failed to resolve subject: {0}")]
    ResolutionFailed(String),

    /// Handle not found in cache with specific error message
    #[error("error-quickdid-resolve-2 Handle not found (cached): {0}")]
    HandleNotFoundCached(String),

    /// Handle not found in cache (generic)
    #[error("error-quickdid-resolve-3 Handle not found (cached)")]
    HandleNotFound,

    /// Mock resolver failure for testing
    #[error("error-quickdid-resolve-4 Mock resolution failure")]
    MockResolutionFailure,

    #[error("error-quickdid-resolve-5 Invalid subject: {0}")]
    InvalidSubject(String),
}