//! Diagnostic types for the architectural checker.

/// Severity level of an architectural diagnostic.
#[derive(Debug, Clone, PartialEq)]
pub enum Severity {
    Error,
    Warning,
}

/// A single architectural diagnostic (error or warning).
#[derive(Debug, Clone)]
pub struct ArchDiagnostic {
    pub severity: Severity,
    /// Rule identifier, e.g. "VBD-001".
    pub rule: String,
    pub message: String,
    /// Function name or other location hint.
    pub location: Option<String>,
}

/// Type alias — an ArchError is an ArchDiagnostic with Severity::Error.
pub type ArchError = ArchDiagnostic;

/// Type alias — an ArchWarning is an ArchDiagnostic with Severity::Warning.
pub type ArchWarning = ArchDiagnostic;

impl ArchDiagnostic {
    pub fn error(rule: impl Into<String>, message: impl Into<String>, location: Option<String>) -> Self {
        Self {
            severity: Severity::Error,
            rule: rule.into(),
            message: message.into(),
            location,
        }
    }

    pub fn warning(rule: impl Into<String>, message: impl Into<String>, location: Option<String>) -> Self {
        Self {
            severity: Severity::Warning,
            rule: rule.into(),
            message: message.into(),
            location,
        }
    }
}