use codespan_reporting::{
    diagnostic::{Diagnostic, Label},
    files::SimpleFiles,
    term,
    term::termcolor::{ColorChoice, StandardStream},
};
use html5tokenizer::{offset::PosTrackingReader, NaiveParser, Token};

fn main() {
    let html = r#"<img src=example.jpg alt="some description">"#;
    let parser = NaiveParser::new(PosTrackingReader::new(html));

    let Token::StartTag(tag) = parser.flatten().next().unwrap() else {
        panic!()
    };

    let mut files = SimpleFiles::new();
    let file_id = files.add("file.html", html);

    let mut labels = Vec::new();

    labels.push(Label::primary(file_id, tag.name_span).with_message("tag name"));

    for attr in &tag.attributes {
        labels.push(Label::primary(file_id, attr.name_span()).with_message("attr name"));
        labels.push(Label::primary(file_id, attr.value_span().unwrap()).with_message("attr value"));
    }

    let diagnostic = Diagnostic::note().with_labels(labels);

    let mut writer = StandardStream::stdout(ColorChoice::Never);
    let config = codespan_reporting::term::Config::default();
    term::emit(&mut writer, &config, &files, &diagnostic).unwrap();
}