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use lsp_types::{HoverParams, MarkupKind};
use rowan::ast::AstNode;
use crate::{citation, features::cursor::CursorContext, syntax::bibtex};
use super::HoverResult;
pub(super) fn find_citation_hover(context: &CursorContext<HoverParams>) -> Option<HoverResult> {
let (key, range) = context
.find_citation_key_word()
.or_else(|| context.find_citation_key_command())
.or_else(|| context.find_entry_key())?;
let value = context
.request
.workspace
.documents_by_uri
.values()
.find_map(|document| {
let data = document.data.as_bibtex()?;
let root = bibtex::SyntaxNode::new_root(data.green.clone());
let root = bibtex::Root::cast(root)?;
let entry = root.find_entry(&key)?;
citation::render(&entry)
})?;
Some(HoverResult {
range,
value,
value_kind: MarkupKind::Markdown,
})
}
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