aa-gateway 0.0.1-beta.1

Control plane — policy enforcement engine and agent registry for Agent Assembly
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//! Error types for the policy simulation module.

use std::fmt;

/// Errors that can occur during policy simulation.
#[derive(Debug)]
pub enum SimulationError {
    /// The policy file could not be loaded or parsed.
    PolicyLoad(String),
    /// The audit log file could not be parsed.
    AuditParse(String),
    /// An I/O error occurred reading a file.
    IoError(std::io::Error),
    /// The duration string could not be parsed (e.g. `--duration 60s`).
    InvalidDuration(String),
}

impl fmt::Display for SimulationError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::PolicyLoad(msg) => write!(f, "policy load error: {msg}"),
            Self::AuditParse(msg) => write!(f, "audit log parse error: {msg}"),
            Self::IoError(err) => write!(f, "I/O error: {err}"),
            Self::InvalidDuration(msg) => write!(f, "invalid duration: {msg}"),
        }
    }
}

impl std::error::Error for SimulationError {}

impl From<std::io::Error> for SimulationError {
    fn from(err: std::io::Error) -> Self {
        Self::IoError(err)
    }
}