use anyhow::Result;use async_trait::async_trait;use gpui::AsyncApp;use language::{LspAdapter, LspAdapterDelegate, LspInstaller, Toolchain};use lsp::{LanguageServerBinary, LanguageServerName, Uri};use node_runtime::{NodeRuntime, VersionStrategy};use project::lsp_store::language_server_settings;use semver::Version;use serde_json::json;use std::{    ffi::OsString,    path::{Path, PathBuf},    sync::Arc,};use util::{ResultExt, maybe, merge_json_value_into}; const SERVER_PATH: &str = "node_modules/@tailwindcss/language-server/bin/css-language-server"; fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {    vec![server_path.into(), "--stdio".into()]} pub struct TailwindCssLspAdapter {    node: NodeRuntime,} // Implements the LSP adapter for the Tailwind CSS LSP fork: https://github.com/zed-industries/zed/pull/39517#issuecomment-3368206678impl TailwindCssLspAdapter {    const SERVER_NAME: LanguageServerName =        LanguageServerName::new_static("tailwindcss-intellisense-css");    const PACKAGE_NAME: &str = "@tailwindcss/language-server";     pub fn new(node: NodeRuntime) -> Self {        TailwindCssLspAdapter { node }    }} impl LspInstaller for TailwindCssLspAdapter {    type BinaryVersion = Version;     async fn fetch_latest_server_version(        &self,        _: &dyn LspAdapterDelegate,        _: bool,        _: &mut AsyncApp,    ) -> Result<Self::BinaryVersion> {        self.node            .npm_package_latest_version(Self::PACKAGE_NAME)            .await    }     async fn check_if_user_installed(        &self,        delegate: &dyn LspAdapterDelegate,        _: Option<Toolchain>,        _: &AsyncApp,    ) -> Option<LanguageServerBinary> {        let path = delegate.which(Self::SERVER_NAME.as_ref()).await?;        let env = delegate.shell_env().await;         Some(LanguageServerBinary {            path,            env: Some(env),            arguments: vec!["--stdio".into()],        })    }     async fn fetch_server_binary(        &self,        latest_version: Self::BinaryVersion,        container_dir: PathBuf,        _: &dyn LspAdapterDelegate,    ) -> Result<LanguageServerBinary> {        let server_path = container_dir.join(SERVER_PATH);        let latest_version = latest_version.to_string();         self.node            .npm_install_packages(                &container_dir,                &[(Self::PACKAGE_NAME, latest_version.as_str())],            )            .await?;         Ok(LanguageServerBinary {            path: self.node.binary_path().await?,            env: None,            arguments: server_binary_arguments(&server_path),        })    }     async fn check_if_version_installed(        &self,        version: &Self::BinaryVersion,        container_dir: &PathBuf,        _: &dyn LspAdapterDelegate,    ) -> Option<LanguageServerBinary> {        let server_path = container_dir.join(SERVER_PATH);         let should_install_language_server = self            .node            .should_install_npm_package(                Self::PACKAGE_NAME,                &server_path,                container_dir,                VersionStrategy::Latest(version),            )            .await;         if should_install_language_server {            None        } else {            Some(LanguageServerBinary {                path: self.node.binary_path().await.ok()?,                env: None,                arguments: server_binary_arguments(&server_path),            })        }    }     async fn cached_server_binary(        &self,        container_dir: PathBuf,        _: &dyn LspAdapterDelegate,    ) -> Option<LanguageServerBinary> {        get_cached_server_binary(container_dir, &self.node).await    }} #[async_trait(?Send)]impl LspAdapter for TailwindCssLspAdapter {    fn name(&self) -> LanguageServerName {        Self::SERVER_NAME    }     async fn initialization_options(        self: Arc<Self>,        _: &Arc<dyn LspAdapterDelegate>,        _: &mut AsyncApp,    ) -> Result<Option<serde_json::Value>> {        Ok(Some(json!({            "provideFormatter": true        })))    }     async fn workspace_configuration(        self: Arc<Self>,        delegate: &Arc<dyn LspAdapterDelegate>,        _: Option<Toolchain>,        _: Option<Uri>,        cx: &mut AsyncApp,    ) -> Result<serde_json::Value> {        let mut default_config = json!({            "css": {                "lint": {}            },            "less": {                "lint": {}            },            "scss": {                "lint": {}            }        });         let project_options = cx.update(|cx| {            language_server_settings(delegate.as_ref(), &self.name(), cx)                .and_then(|s| s.settings.clone())        });         if let Some(override_options) = project_options {            merge_json_value_into(override_options, &mut default_config);        }         Ok(default_config)    }} async fn get_cached_server_binary(    container_dir: PathBuf,    node: &NodeRuntime,) -> Option<LanguageServerBinary> {    maybe!(async {        let server_path = container_dir.join(SERVER_PATH);        anyhow::ensure!(            server_path.exists(),            "missing executable in directory {server_path:?}"        );        Ok(LanguageServerBinary {            path: node.binary_path().await?,            env: None,            arguments: server_binary_arguments(&server_path),        })    })    .await    .log_err()}