use super::{    stack_frame_list::{StackFrameList, StackFrameListEvent},    variable_list::VariableList,};use anyhow::Result;use collections::HashMap;use dap::OutputEvent;use editor::{Bias, CompletionProvider, Editor, EditorElement, EditorStyle, ExcerptId};use fuzzy::StringMatchCandidate;use gpui::{    Context, Entity, FocusHandle, Focusable, Render, Subscription, Task, TextStyle, WeakEntity,};use language::{Buffer, CodeLabel, ToOffset};use menu::Confirm;use project::{    Completion, CompletionResponse,    debugger::session::{CompletionsQuery, OutputToken, Session, SessionEvent},};use settings::Settings;use std::{cell::RefCell, rc::Rc, usize};use theme::ThemeSettings;use ui::{Divider, prelude::*}; pub struct Console {    console: Entity<Editor>,    query_bar: Entity<Editor>,    session: Entity<Session>,    _subscriptions: Vec<Subscription>,    variable_list: Entity<VariableList>,    stack_frame_list: Entity<StackFrameList>,    last_token: OutputToken,    update_output_task: Task<()>,    focus_handle: FocusHandle,} impl Console {    pub fn new(        session: Entity<Session>,        stack_frame_list: Entity<StackFrameList>,        variable_list: Entity<VariableList>,        window: &mut Window,        cx: &mut Context<Self>,    ) -> Self {        let console = cx.new(|cx| {            let mut editor = Editor::multi_line(window, cx);            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);            editor.set_read_only(true);            editor.disable_scrollbars_and_minimap(window, cx);            editor.set_show_gutter(false, cx);            editor.set_show_runnables(false, cx);            editor.set_show_breakpoints(false, cx);            editor.set_show_code_actions(false, cx);            editor.set_show_line_numbers(false, cx);            editor.set_show_git_diff_gutter(false, cx);            editor.set_autoindent(false);            editor.set_input_enabled(false);            editor.set_use_autoclose(false);            editor.set_show_wrap_guides(false, cx);            editor.set_show_indent_guides(false, cx);            editor.set_show_edit_predictions(Some(false), window, cx);            editor.set_use_modal_editing(false);            editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);            editor        });        let focus_handle = cx.focus_handle();         let this = cx.weak_entity();        let query_bar = cx.new(|cx| {            let mut editor = Editor::single_line(window, cx);            editor.set_placeholder_text("Evaluate an expression", cx);            editor.set_use_autoclose(false);            editor.set_show_gutter(false, cx);            editor.set_show_wrap_guides(false, cx);            editor.set_show_indent_guides(false, cx);            editor.set_completion_provider(Some(Rc::new(ConsoleQueryBarCompletionProvider(this))));             editor        });         let _subscriptions = vec![            cx.subscribe(&stack_frame_list, Self::handle_stack_frame_list_events),            cx.subscribe_in(&session, window, |this, _, event, window, cx| {                if let SessionEvent::ConsoleOutput = event {                    this.update_output(window, cx)                }            }),            cx.on_focus(&focus_handle, window, |console, window, cx| {                if console.is_running(cx) {                    console.query_bar.focus_handle(cx).focus(window);                }            }),        ];         Self {            session,            console,            query_bar,            variable_list,            _subscriptions,            stack_frame_list,            update_output_task: Task::ready(()),            last_token: OutputToken(0),            focus_handle,        }    }     #[cfg(test)]    pub(crate) fn editor(&self) -> &Entity<Editor> {        &self.console    }     fn is_running(&self, cx: &Context<Self>) -> bool {        self.session.read(cx).is_running()    }     fn handle_stack_frame_list_events(        &mut self,        _: Entity<StackFrameList>,        event: &StackFrameListEvent,        cx: &mut Context<Self>,    ) {        match event {            StackFrameListEvent::SelectedStackFrameChanged(_) => cx.notify(),            StackFrameListEvent::BuiltEntries => {}        }    }     pub(crate) fn show_indicator(&self, cx: &App) -> bool {        self.session.read(cx).has_new_output(self.last_token)    }     pub fn add_messages<'a>(        &mut self,        events: impl Iterator<Item = &'a OutputEvent>,        window: &mut Window,        cx: &mut App,    ) {        self.console.update(cx, |console, cx| {            let mut to_insert = String::default();            for event in events {                use std::fmt::Write;                 _ = write!(to_insert, "{}\n", event.output.trim_end());            }             console.set_read_only(false);            console.move_to_end(&editor::actions::MoveToEnd, window, cx);            console.insert(&to_insert, window, cx);            console.set_read_only(true);             cx.notify();        });    }     pub fn evaluate(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {        let expression = self.query_bar.update(cx, |editor, cx| {            let expression = editor.text(cx);            cx.defer_in(window, |editor, window, cx| {                editor.clear(window, cx);            });             expression        });         self.session.update(cx, |session, cx| {            session                .evaluate(                    expression,                    Some(dap::EvaluateArgumentsContext::Repl),                    self.stack_frame_list.read(cx).opened_stack_frame_id(),                    None,                    cx,                )                .detach();        });    }     fn render_console(&self, cx: &Context<Self>) -> impl IntoElement {        EditorElement::new(&self.console, Self::editor_style(&self.console, cx))    }     fn editor_style(editor: &Entity<Editor>, cx: &Context<Self>) -> EditorStyle {        let is_read_only = editor.read(cx).read_only(cx);        let settings = ThemeSettings::get_global(cx);        let theme = cx.theme();        let text_style = TextStyle {            color: if is_read_only {                theme.colors().text_muted            } else {                theme.colors().text            },            font_family: settings.buffer_font.family.clone(),            font_features: settings.buffer_font.features.clone(),            font_size: settings.buffer_font_size(cx).into(),            font_weight: settings.buffer_font.weight,            line_height: relative(settings.buffer_line_height.value()),            ..Default::default()        };        EditorStyle {            background: theme.colors().editor_background,            local_player: theme.players().local(),            text: text_style,            ..Default::default()        }    }     fn render_query_bar(&self, cx: &Context<Self>) -> impl IntoElement {        EditorElement::new(&self.query_bar, Self::editor_style(&self.query_bar, cx))    }     fn update_output(&mut self, window: &mut Window, cx: &mut Context<Self>) {        let session = self.session.clone();        let token = self.last_token;         self.update_output_task = cx.spawn_in(window, async move |this, cx| {            _ = session.update_in(cx, move |session, window, cx| {                let (output, last_processed_token) = session.output(token);                 _ = this.update(cx, |this, cx| {                    if last_processed_token == this.last_token {                        return;                    }                    this.add_messages(output, window, cx);                     this.last_token = last_processed_token;                });            });        });    }} impl Render for Console {    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {        v_flex()            .track_focus(&self.focus_handle)            .key_context("DebugConsole")            .on_action(cx.listener(Self::evaluate))            .size_full()            .child(self.render_console(cx))            .when(self.is_running(cx), |this| {                this.child(Divider::horizontal())                    .child(self.render_query_bar(cx))            })            .border_2()    }} impl Focusable for Console {    fn focus_handle(&self, _cx: &App) -> gpui::FocusHandle {        self.focus_handle.clone()    }} struct ConsoleQueryBarCompletionProvider(WeakEntity<Console>); impl CompletionProvider for ConsoleQueryBarCompletionProvider {    fn completions(        &self,        _excerpt_id: ExcerptId,        buffer: &Entity<Buffer>,        buffer_position: language::Anchor,        _trigger: editor::CompletionContext,        _window: &mut Window,        cx: &mut Context<Editor>,    ) -> Task<Result<Vec<CompletionResponse>>> {        let Some(console) = self.0.upgrade() else {            return Task::ready(Ok(Vec::new()));        };         let support_completions = console            .read(cx)            .session            .read(cx)            .capabilities()            .supports_completions_request            .unwrap_or_default();         if support_completions {            self.client_completions(&console, buffer, buffer_position, cx)        } else {            self.variable_list_completions(&console, buffer, buffer_position, cx)        }    }     fn resolve_completions(        &self,        _buffer: Entity<Buffer>,        _completion_indices: Vec<usize>,        _completions: Rc<RefCell<Box<[Completion]>>>,        _cx: &mut Context<Editor>,    ) -> gpui::Task<anyhow::Result<bool>> {        Task::ready(Ok(false))    }     fn apply_additional_edits_for_completion(        &self,        _buffer: Entity<Buffer>,        _completions: Rc<RefCell<Box<[Completion]>>>,        _completion_index: usize,        _push_to_history: bool,        _cx: &mut Context<Editor>,    ) -> gpui::Task<anyhow::Result<Option<language::Transaction>>> {        Task::ready(Ok(None))    }     fn is_completion_trigger(        &self,        _buffer: &Entity<Buffer>,        _position: language::Anchor,        _text: &str,        _trigger_in_words: bool,        _cx: &mut Context<Editor>,    ) -> bool {        true    }} impl ConsoleQueryBarCompletionProvider {    fn variable_list_completions(        &self,        console: &Entity<Console>,        buffer: &Entity<Buffer>,        buffer_position: language::Anchor,        cx: &mut Context<Editor>,    ) -> Task<Result<Vec<CompletionResponse>>> {        let (variables, string_matches) = console.update(cx, |console, cx| {            let mut variables = HashMap::default();            let mut string_matches = Vec::default();             for variable in console.variable_list.update(cx, |variable_list, cx| {                variable_list.completion_variables(cx)            }) {                if let Some(evaluate_name) = &variable.evaluate_name {                    variables.insert(evaluate_name.clone(), variable.value.clone());                    string_matches.push(StringMatchCandidate {                        id: 0,                        string: evaluate_name.clone(),                        char_bag: evaluate_name.chars().collect(),                    });                }                 variables.insert(variable.name.clone(), variable.value.clone());                 string_matches.push(StringMatchCandidate {                    id: 0,                    string: variable.name.clone(),                    char_bag: variable.name.chars().collect(),                });            }             (variables, string_matches)        });         let query = buffer.read(cx).text();         cx.spawn(async move |_, cx| {            const LIMIT: usize = 10;            let matches = fuzzy::match_strings(                &string_matches,                &query,                true,                LIMIT,                &Default::default(),                cx.background_executor().clone(),            )            .await;             let completions = matches                .iter()                .filter_map(|string_match| {                    let variable_value = variables.get(&string_match.string)?;                     Some(project::Completion {                        replace_range: buffer_position..buffer_position,                        new_text: string_match.string.clone(),                        label: CodeLabel {                            filter_range: 0..string_match.string.len(),                            text: format!("{} {}", string_match.string, variable_value),                            runs: Vec::new(),                        },                        icon_path: None,                        documentation: None,                        confirm: None,                        source: project::CompletionSource::Custom,                        insert_text_mode: None,                    })                })                .collect::<Vec<_>>();             Ok(vec![project::CompletionResponse {                is_incomplete: completions.len() >= LIMIT,                completions,            }])        })    }     fn client_completions(        &self,        console: &Entity<Console>,        buffer: &Entity<Buffer>,        buffer_position: language::Anchor,        cx: &mut Context<Editor>,    ) -> Task<Result<Vec<CompletionResponse>>> {        let completion_task = console.update(cx, |console, cx| {            console.session.update(cx, |state, cx| {                let frame_id = console.stack_frame_list.read(cx).opened_stack_frame_id();                 state.completions(                    CompletionsQuery::new(buffer.read(cx), buffer_position, frame_id),                    cx,                )            })        });        let snapshot = buffer.read(cx).text_snapshot();        cx.background_executor().spawn(async move {            let completions = completion_task.await?;             let completions = completions                .into_iter()                .map(|completion| {                    let new_text = completion                        .text                        .as_ref()                        .unwrap_or(&completion.label)                        .to_owned();                    let buffer_text = snapshot.text();                    let buffer_bytes = buffer_text.as_bytes();                    let new_bytes = new_text.as_bytes();                     let mut prefix_len = 0;                    for i in (0..new_bytes.len()).rev() {                        if buffer_bytes.ends_with(&new_bytes[0..i]) {                            prefix_len = i;                            break;                        }                    }                     let buffer_offset = buffer_position.to_offset(&snapshot);                    let start = buffer_offset - prefix_len;                    let start = snapshot.clip_offset(start, Bias::Left);                    let start = snapshot.anchor_before(start);                    let replace_range = start..buffer_position;                     project::Completion {                        replace_range,                        new_text,                        label: CodeLabel {                            filter_range: 0..completion.label.len(),                            text: completion.label,                            runs: Vec::new(),                        },                        icon_path: None,                        documentation: None,                        confirm: None,                        source: project::CompletionSource::BufferWord {                            word_range: buffer_position..language::Anchor::MAX,                            resolved: false,                        },                        insert_text_mode: None,                    }                })                .collect();             Ok(vec![project::CompletionResponse {                completions,                is_incomplete: false,            }])        })    }}