tenant.openagents/omega

1use std::{env, fs};
2use zed::settings::LspSettings;
3use zed_extension_api::{self as zed, LanguageServerId, Result, serde_json::json};
4
5const BINARY_NAME: &str = "vscode-html-language-server";
6const SERVER_PATH: &str =
7    "node_modules/@zed-industries/vscode-langservers-extracted/bin/vscode-html-language-server";
8const PACKAGE_NAME: &str = "@zed-industries/vscode-langservers-extracted";
9
10struct HtmlExtension {
11    cached_binary_path: Option<String>,
12}
13
14impl HtmlExtension {
15    fn server_exists(&self) -> bool {
16        fs::metadata(SERVER_PATH).is_ok_and(|stat| stat.is_file())
17    }
18
19    fn server_script_path(&mut self, language_server_id: &LanguageServerId) -> Result<String> {
20        let server_exists = self.server_exists();
21        if self.cached_binary_path.is_some() && server_exists {
22            return Ok(SERVER_PATH.to_string());
23        }
24
25        zed::set_language_server_installation_status(
26            language_server_id,
27            &zed::LanguageServerInstallationStatus::CheckingForUpdate,
28        );
29        let version = zed::npm_package_latest_version(PACKAGE_NAME)?;
30
31        if !server_exists
32            || zed::npm_package_installed_version(PACKAGE_NAME)?.as_ref() != Some(&version)
33        {
34            zed::set_language_server_installation_status(
35                language_server_id,
36                &zed::LanguageServerInstallationStatus::Downloading,
37            );
38            let result = zed::npm_install_package(PACKAGE_NAME, &version);
39            match result {
40                Ok(()) => {
41                    if !self.server_exists() {
42                        Err(format!(
43                            "installed package '{PACKAGE_NAME}' did not contain expected path '{SERVER_PATH}'",
44                        ))?;
45                    }
46                }
47                Err(error) => {
48                    if !self.server_exists() {
49                        Err(error)?;
50                    }
51                }
52            }
53        }
54        Ok(SERVER_PATH.to_string())
55    }
56}
57
58impl zed::Extension for HtmlExtension {
59    fn new() -> Self {
60        Self {
61            cached_binary_path: None,
62        }
63    }
64
65    fn language_server_command(
66        &mut self,
67        language_server_id: &LanguageServerId,
68        worktree: &zed::Worktree,
69    ) -> Result<zed::Command> {
70        let server_path = if let Some(path) = worktree.which(BINARY_NAME) {
71            return Ok(zed::Command {
72                command: path,
73                args: vec!["--stdio".to_string()],
74                env: Default::default(),
75            });
76        } else {
77            let server_path = self.server_script_path(language_server_id)?;
78            env::current_dir()
79                .unwrap()
80                .join(&server_path)
81                .to_string_lossy()
82                .to_string()
83        };
84        self.cached_binary_path = Some(server_path.clone());
85
86        Ok(zed::Command {
87            command: zed::node_binary_path()?,
88            args: vec![server_path, "--stdio".to_string()],
89            env: Default::default(),
90        })
91    }
92
93    fn language_server_workspace_configuration(
94        &mut self,
95        server_id: &LanguageServerId,
96        worktree: &zed::Worktree,
97    ) -> Result<Option<zed::serde_json::Value>> {
98        LspSettings::for_worktree(server_id.as_ref(), worktree)
99            .map(|lsp_settings| lsp_settings.settings)
100    }
101
102    fn language_server_initialization_options(
103        &mut self,
104        _server_id: &LanguageServerId,
105        _worktree: &zed_extension_api::Worktree,
106    ) -> Result<Option<zed_extension_api::serde_json::Value>> {
107        let initialization_options = json!({"provideFormatter": true });
108        Ok(Some(initialization_options))
109    }
110}
111
112zed::register_extension!(HtmlExtension);
113