use std::str::Utf8Error;

use quick_xml::events::Event;

#[allow(clippy::module_name_repetitions)]
pub trait EventExt
{
    fn describe(&self) -> Result<String, Utf8Error>;
}

impl<'a> EventExt for Event<'a>
{
    fn describe(&self) -> Result<String, Utf8Error>
    {
        Ok(match self {
            Event::Start(start) => {
                format!(
                    "tag start with name \"{}\"",
                    std::str::from_utf8(start.name().as_ref())?
                )
            }
            Event::End(end) => {
                format!(
                    "tag end with name \"{}\"",
                    std::str::from_utf8(end.name().as_ref())?
                )
            }
            Event::Empty(start) => {
                format!(
                    "empty tag with name \"{}\"",
                    std::str::from_utf8(start.name().as_ref())?
                )
            }
            Event::Text(text) => {
                format!("text \"{}\"", std::str::from_utf8(text)?)
            }
            Event::Comment(comment) => {
                format!("comment \"{}\"", std::str::from_utf8(comment)?)
            }
            Event::CData(cdata) => {
                format!("cdata \"{}\"", std::str::from_utf8(cdata)?)
            }
            Event::Decl(_) => "XML declaration".to_string(),
            Event::PI(processing_instruction) => {
                format!(
                    "processing instruction \"{}\"",
                    std::str::from_utf8(processing_instruction)?
                )
            }
            Event::DocType(_) => "doctype".to_string(),
            Event::Eof => "end of file".to_string(),
        })
    }
}