1use anyhow::Context as _;
 2use gpui::{View, ViewContext, WindowContext};
 3use language::Language;
 4use url::Url;
 5
 6use crate::lsp_ext::find_specific_language_server_in_selection;
 7
 8use crate::{element::register_action, Editor, SwitchSourceHeader};
 9
10const CLANGD_SERVER_NAME: &str = "clangd";
11
12fn is_c_language(language: &Language) -> bool {
13    return language.name() == "C++".into() || language.name() == "C".into();
14}
15
16pub fn switch_source_header(
17    editor: &mut Editor,
18    _: &SwitchSourceHeader,
19    cx: &mut ViewContext<Editor>,
20) {
21    let Some(project) = &editor.project else {
22        return;
23    };
24    let Some(workspace) = editor.workspace() else {
25        return;
26    };
27
28    let Some((_, _, server_to_query, buffer)) =
29        find_specific_language_server_in_selection(editor, cx, is_c_language, CLANGD_SERVER_NAME)
30    else {
31        return;
32    };
33
34    let project = project.clone();
35    let buffer_snapshot = buffer.read(cx).snapshot();
36    let source_file = buffer_snapshot
37        .file()
38        .unwrap()
39        .file_name(cx)
40        .to_str()
41        .unwrap()
42        .to_owned();
43
44    let switch_source_header_task = project.update(cx, |project, cx| {
45        project.request_lsp(
46            buffer,
47            project::LanguageServerToQuery::Other(server_to_query),
48            project::lsp_ext_command::SwitchSourceHeader,
49            cx,
50        )
51    });
52    cx.spawn(|_editor, mut cx| async move {
53        let switch_source_header = switch_source_header_task
54            .await
55            .with_context(|| format!("Switch source/header LSP request for path \"{source_file}\" failed"))?;
56        if switch_source_header.0.is_empty() {
57            log::info!("Clangd returned an empty string when requesting to switch source/header from \"{source_file}\"" );
58            return Ok(());
59        }
60
61        let goto = Url::parse(&switch_source_header.0).with_context(|| {
62            format!(
63                "Parsing URL \"{}\" returned from switch source/header failed",
64                switch_source_header.0
65            )
66        })?;
67
68        let path = goto.to_file_path().map_err(|()| {
69            anyhow::anyhow!("URL conversion to file path failed for \"{goto}\"")
70        })?;
71
72        workspace
73            .update(&mut cx, |workspace, view_cx| {
74                workspace.open_abs_path(path, false, view_cx)
75            })
76            .with_context(|| {
77                format!(
78                    "Switch source/header could not open \"{goto}\" in workspace"
79                )
80            })?
81            .await
82            .map(|_| ())
83    })
84    .detach_and_log_err(cx);
85}
86
87pub fn apply_related_actions(editor: &View<Editor>, cx: &mut WindowContext) {
88    if editor.update(cx, |e, cx| {
89        find_specific_language_server_in_selection(e, cx, is_c_language, CLANGD_SERVER_NAME)
90            .is_some()
91    }) {
92        register_action(editor, cx, switch_source_header);
93    }
94}