mod native_kernel;use std::{fmt::Debug, future::Future, path::PathBuf}; use futures::{    channel::mpsc::{self, Receiver},    future::Shared,    stream,};use gpui::{AppContext, Model, Task, WindowContext};use language::LanguageName;pub use native_kernel::*; mod remote_kernels;use project::{Project, WorktreeId};pub use remote_kernels::*; use anyhow::Result;use jupyter_protocol::JupyterKernelspec;use runtimelib::{ExecutionState, JupyterMessage, KernelInfoReply};use ui::{Icon, IconName, SharedString}; pub type JupyterMessageChannel = stream::SelectAll<Receiver<JupyterMessage>>; #[derive(Debug, Clone, PartialEq, Eq)]pub enum KernelSpecification {    Remote(RemoteKernelSpecification),    Jupyter(LocalKernelSpecification),    PythonEnv(LocalKernelSpecification),} impl KernelSpecification {    pub fn name(&self) -> SharedString {        match self {            Self::Jupyter(spec) => spec.name.clone().into(),            Self::PythonEnv(spec) => spec.name.clone().into(),            Self::Remote(spec) => spec.name.clone().into(),        }    }     pub fn type_name(&self) -> SharedString {        match self {            Self::Jupyter(_) => "Jupyter".into(),            Self::PythonEnv(_) => "Python Environment".into(),            Self::Remote(_) => "Remote".into(),        }    }     pub fn path(&self) -> SharedString {        SharedString::from(match self {            Self::Jupyter(spec) => spec.path.to_string_lossy().to_string(),            Self::PythonEnv(spec) => spec.path.to_string_lossy().to_string(),            Self::Remote(spec) => spec.url.to_string(),        })    }     pub fn language(&self) -> SharedString {        SharedString::from(match self {            Self::Jupyter(spec) => spec.kernelspec.language.clone(),            Self::PythonEnv(spec) => spec.kernelspec.language.clone(),            Self::Remote(spec) => spec.kernelspec.language.clone(),        })    }     pub fn icon(&self, cx: &AppContext) -> Icon {        let lang_name = match self {            Self::Jupyter(spec) => spec.kernelspec.language.clone(),            Self::PythonEnv(spec) => spec.kernelspec.language.clone(),            Self::Remote(spec) => spec.kernelspec.language.clone(),        };         file_icons::FileIcons::get(cx)            .get_type_icon(&lang_name.to_lowercase())            .map(Icon::from_path)            .unwrap_or(Icon::new(IconName::ReplNeutral))    }} pub fn python_env_kernel_specifications(    project: &Model<Project>,    worktree_id: WorktreeId,    cx: &mut AppContext,) -> impl Future<Output = Result<Vec<KernelSpecification>>> {    let python_language = LanguageName::new("Python");    let toolchains = project        .read(cx)        .available_toolchains(worktree_id, python_language, cx);    let background_executor = cx.background_executor().clone();     async move {        let toolchains = if let Some(toolchains) = toolchains.await {            toolchains        } else {            return Ok(Vec::new());        };         let kernelspecs = toolchains.toolchains.into_iter().map(|toolchain| {            background_executor.spawn(async move {                let python_path = toolchain.path.to_string();                 // Check if ipykernel is installed                let ipykernel_check = util::command::new_smol_command(&python_path)                    .args(&["-c", "import ipykernel"])                    .output()                    .await;                 if ipykernel_check.is_ok() && ipykernel_check.unwrap().status.success() {                    // Create a default kernelspec for this environment                    let default_kernelspec = JupyterKernelspec {                        argv: vec![                            python_path.clone(),                            "-m".to_string(),                            "ipykernel_launcher".to_string(),                            "-f".to_string(),                            "{connection_file}".to_string(),                        ],                        display_name: toolchain.name.to_string(),                        language: "python".to_string(),                        interrupt_mode: None,                        metadata: None,                        env: None,                    };                     Some(KernelSpecification::PythonEnv(LocalKernelSpecification {                        name: toolchain.name.to_string(),                        path: PathBuf::from(&python_path),                        kernelspec: default_kernelspec,                    }))                } else {                    None                }            })        });         let kernel_specs = futures::future::join_all(kernelspecs)            .await            .into_iter()            .flatten()            .collect();         anyhow::Ok(kernel_specs)    }} pub trait RunningKernel: Send + Debug {    fn request_tx(&self) -> mpsc::Sender<JupyterMessage>;    fn working_directory(&self) -> &PathBuf;    fn execution_state(&self) -> &ExecutionState;    fn set_execution_state(&mut self, state: ExecutionState);    fn kernel_info(&self) -> Option<&KernelInfoReply>;    fn set_kernel_info(&mut self, info: KernelInfoReply);    fn force_shutdown(&mut self, cx: &mut WindowContext) -> Task<anyhow::Result<()>>;} #[derive(Debug, Clone)]pub enum KernelStatus {    Idle,    Busy,    Starting,    Error,    ShuttingDown,    Shutdown,    Restarting,} impl KernelStatus {    pub fn is_connected(&self) -> bool {        match self {            KernelStatus::Idle | KernelStatus::Busy => true,            _ => false,        }    }} impl ToString for KernelStatus {    fn to_string(&self) -> String {        match self {            KernelStatus::Idle => "Idle".to_string(),            KernelStatus::Busy => "Busy".to_string(),            KernelStatus::Starting => "Starting".to_string(),            KernelStatus::Error => "Error".to_string(),            KernelStatus::ShuttingDown => "Shutting Down".to_string(),            KernelStatus::Shutdown => "Shutdown".to_string(),            KernelStatus::Restarting => "Restarting".to_string(),        }    }} #[derive(Debug)]pub enum Kernel {    RunningKernel(Box<dyn RunningKernel>),    StartingKernel(Shared<Task<()>>),    ErroredLaunch(String),    ShuttingDown,    Shutdown,    Restarting,} impl From<&Kernel> for KernelStatus {    fn from(kernel: &Kernel) -> Self {        match kernel {            Kernel::RunningKernel(kernel) => match kernel.execution_state() {                ExecutionState::Idle => KernelStatus::Idle,                ExecutionState::Busy => KernelStatus::Busy,            },            Kernel::StartingKernel(_) => KernelStatus::Starting,            Kernel::ErroredLaunch(_) => KernelStatus::Error,            Kernel::ShuttingDown => KernelStatus::ShuttingDown,            Kernel::Shutdown => KernelStatus::Shutdown,            Kernel::Restarting => KernelStatus::Restarting,        }    }} impl Kernel {    pub fn status(&self) -> KernelStatus {        self.into()    }     pub fn set_execution_state(&mut self, status: &ExecutionState) {        if let Kernel::RunningKernel(running_kernel) = self {            running_kernel.set_execution_state(status.clone());        }    }     pub fn set_kernel_info(&mut self, kernel_info: &KernelInfoReply) {        if let Kernel::RunningKernel(running_kernel) = self {            running_kernel.set_kernel_info(kernel_info.clone());        }    }     pub fn is_shutting_down(&self) -> bool {        match self {            Kernel::Restarting | Kernel::ShuttingDown => true,            Kernel::RunningKernel(_)            | Kernel::StartingKernel(_)            | Kernel::ErroredLaunch(_)            | Kernel::Shutdown => false,        }    }}