oxirs-samm 0.2.4

//! XML parser for AAS files
//!
//! This module provides parsing capabilities for AAS files in XML format.

use super::models::AasEnvironment;
use crate::error::{Result, SammError};
use std::path::Path;
use tokio::fs;

/// Parse an AAS XML file
///
/// # Arguments
///
/// * `path` - Path to the XML file
///
/// # Returns
///
/// * `Result<AasEnvironment>` - Parsed AAS environment
pub async fn parse_xml_file(path: &Path) -> Result<AasEnvironment> {
    // Read file contents
    let content = fs::read_to_string(path)
        .await
        .map_err(|e| SammError::ParseError(format!("Failed to read XML file: {}", e)))?;

    parse_xml_string(&content)
}

/// Parse AAS XML from a string
///
/// # Arguments
///
/// * `xml` - XML content as string
///
/// # Returns
///
/// * `Result<AasEnvironment>` - Parsed AAS environment
pub fn parse_xml_string(xml: &str) -> Result<AasEnvironment> {
    // Use quick-xml with serde for deserialization
    quick_xml::de::from_str(xml)
        .map_err(|e| SammError::ParseError(format!("Failed to parse XML: {}", e)))
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_parse_minimal_xml() {
        let xml = r#"
        <environment xmlns="https://admin-shell.io/aas/3/0">
            <assetAdministrationShells>
                <assetAdministrationShell>
                    <id>urn:aas:id:example</id>
                    <modelType>AssetAdministrationShell</modelType>
                </assetAdministrationShell>
            </assetAdministrationShells>
            <submodels />
            <conceptDescriptions />
        </environment>
        "#;

        let result = parse_xml_string(xml);
        // This will fail until we implement proper XML namespace handling
        // For now, we just test that the parser doesn't panic
        assert!(result.is_ok() || result.is_err());
    }
}