use anyhow::{anyhow, Result};use async_trait::async_trait;use collections::HashMap;use feature_flags::FeatureFlagAppExt;use futures::StreamExt;use gpui::AppContext;use language::{LanguageRegistry, LanguageServerName, LspAdapter, LspAdapterDelegate};use lsp::LanguageServerBinary;use node_runtime::NodeRuntime;use serde_json::{json, Value};use settings::{KeymapFile, SettingsJsonSchemaParams, SettingsStore};use smol::fs;use std::{    any::Any,    ffi::OsString,    path::{Path, PathBuf},    sync::{Arc, OnceLock},};use util::{async_maybe, paths, ResultExt}; const SERVER_PATH: &str = "node_modules/vscode-json-languageserver/bin/vscode-json-languageserver"; fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {    vec![server_path.into(), "--stdio".into()]} pub struct JsonLspAdapter {    node: Arc<dyn NodeRuntime>,    languages: Arc<LanguageRegistry>,    workspace_config: OnceLock<Value>,} impl JsonLspAdapter {    pub fn new(node: Arc<dyn NodeRuntime>, languages: Arc<LanguageRegistry>) -> Self {        Self {            node,            languages,            workspace_config: Default::default(),        }    }     fn get_workspace_config(language_names: Vec<String>, cx: &mut AppContext) -> Value {        let action_names = cx.all_action_names();        let staff_mode = cx.is_staff();         let font_names = &cx.text_system().all_font_names();        let settings_schema = cx.global::<SettingsStore>().json_schema(            &SettingsJsonSchemaParams {                language_names: &language_names,                staff_mode,                font_names,            },            cx,        );        let tasks_schema = task::static_source::DefinitionProvider::generate_json_schema();        serde_json::json!({            "json": {                "format": {                    "enable": true,                },                "schemas": [                    {                        "fileMatch": [                            schema_file_match(&paths::SETTINGS),                            &*paths::LOCAL_SETTINGS_RELATIVE_PATH,                        ],                        "schema": settings_schema,                    },                    {                        "fileMatch": [schema_file_match(&paths::KEYMAP)],                        "schema": KeymapFile::generate_json_schema(&action_names),                    },                    {                        "fileMatch": [                            schema_file_match(&paths::TASKS),                            &*paths::LOCAL_TASKS_RELATIVE_PATH,                        ],                        "schema": tasks_schema,                    }                ]            }        })    }} #[async_trait]impl LspAdapter for JsonLspAdapter {    fn name(&self) -> LanguageServerName {        LanguageServerName("json-language-server".into())    }     async fn fetch_latest_server_version(        &self,        _: &dyn LspAdapterDelegate,    ) -> Result<Box<dyn 'static + Send + Any>> {        Ok(Box::new(            self.node                .npm_package_latest_version("vscode-json-languageserver")                .await?,        ) as Box<_>)    }     async fn fetch_server_binary(        &self,        version: Box<dyn 'static + Send + Any>,        container_dir: PathBuf,        _: &dyn LspAdapterDelegate,    ) -> Result<LanguageServerBinary> {        let version = version.downcast::<String>().unwrap();        let server_path = container_dir.join(SERVER_PATH);         if fs::metadata(&server_path).await.is_err() {            self.node                .npm_install_packages(                    &container_dir,                    &[("vscode-json-languageserver", version.as_str())],                )                .await?;        }         Ok(LanguageServerBinary {            path: self.node.binary_path().await?,            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 fn installation_test_binary(        &self,        container_dir: PathBuf,    ) -> Option<LanguageServerBinary> {        get_cached_server_binary(container_dir, &*self.node).await    }     fn initialization_options(&self) -> Option<serde_json::Value> {        Some(json!({            "provideFormatter": true        }))    }     fn workspace_configuration(&self, _workspace_root: &Path, cx: &mut AppContext) -> Value {        self.workspace_config            .get_or_init(|| Self::get_workspace_config(self.languages.language_names(), cx))            .clone()    }     fn language_ids(&self) -> HashMap<String, String> {        [("JSON".into(), "jsonc".into())].into_iter().collect()    }} async fn get_cached_server_binary(    container_dir: PathBuf,    node: &dyn NodeRuntime,) -> Option<LanguageServerBinary> {    async_maybe!({        let mut last_version_dir = None;        let mut entries = fs::read_dir(&container_dir).await?;        while let Some(entry) = entries.next().await {            let entry = entry?;            if entry.file_type().await?.is_dir() {                last_version_dir = Some(entry.path());            }        }         let last_version_dir = last_version_dir.ok_or_else(|| anyhow!("no cached binary"))?;        let server_path = last_version_dir.join(SERVER_PATH);        if server_path.exists() {            Ok(LanguageServerBinary {                path: node.binary_path().await?,                env: None,                arguments: server_binary_arguments(&server_path),            })        } else {            Err(anyhow!(                "missing executable in directory {:?}",                last_version_dir            ))        }    })    .await    .log_err()} fn schema_file_match(path: &Path) -> &Path {    path.strip_prefix(path.parent().unwrap().parent().unwrap())        .unwrap()}