use super::{    stack_frame_list::{StackFrameList, StackFrameListEvent},    variable_list::VariableList,};use anyhow::Result;use collections::HashMap;use dap::OutputEvent;use editor::{CompletionProvider, Editor, EditorElement, EditorStyle, ExcerptId};use fuzzy::StringMatchCandidate;use gpui::{Context, Entity, Render, Subscription, Task, TextStyle, WeakEntity};use language::{Buffer, CodeLabel, ToOffset};use menu::Confirm;use project::{    Completion,    debugger::session::{CompletionsQuery, OutputToken, Session},};use settings::Settings;use std::{cell::RefCell, rc::Rc, usize};use theme::ThemeSettings;use ui::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<()>,} 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.set_show_gutter(true, 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        });         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(Box::new(ConsoleQueryBarCompletionProvider(this))));             editor        });         let _subscriptions =            vec![cx.subscribe(&stack_frame_list, Self::handle_stack_frame_list_events)];         Self {            session,            console,            query_bar,            variable_list,            _subscriptions,            stack_frame_list,            update_output_task: Task::ready(()),            last_token: OutputToken(0),        }    }     #[cfg(test)]    pub(crate) fn editor(&self) -> &Entity<Editor> {        &self.console    }     fn is_local(&self, cx: &Context<Self>) -> bool {        self.session.read(cx).is_local()    }     fn handle_stack_frame_list_events(        &mut self,        _: Entity<StackFrameList>,        event: &StackFrameListEvent,        cx: &mut Context<Self>,    ) {        match event {            StackFrameListEvent::SelectedStackFrameChanged(_) => cx.notify(),        }    }     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);             editor.clear(window, cx);             expression        });         self.session.update(cx, |state, cx| {            state.evaluate(                expression,                Some(dap::EvaluateArgumentsContext::Variables),                self.stack_frame_list.read(cx).current_stack_frame_id(),                None,                cx,            );        });    }     fn render_console(&self, cx: &Context<Self>) -> impl IntoElement {        let settings = ThemeSettings::get_global(cx);        let text_style = TextStyle {            color: if self.console.read(cx).read_only(cx) {                cx.theme().colors().text_disabled            } else {                cx.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()        };         EditorElement::new(            &self.console,            EditorStyle {                background: cx.theme().colors().editor_background,                local_player: cx.theme().players().local(),                text: text_style,                ..Default::default()            },        )    }     fn render_query_bar(&self, cx: &Context<Self>) -> impl IntoElement {        let settings = ThemeSettings::get_global(cx);        let text_style = TextStyle {            color: if self.console.read(cx).read_only(cx) {                cx.theme().colors().text_disabled            } else {                cx.theme().colors().text            },            font_family: settings.ui_font.family.clone(),            font_features: settings.ui_font.features.clone(),            font_fallbacks: settings.ui_font.fallbacks.clone(),            font_size: TextSize::Editor.rems(cx).into(),            font_weight: settings.ui_font.weight,            line_height: relative(1.3),            ..Default::default()        };         EditorElement::new(            &self.query_bar,            EditorStyle {                background: cx.theme().colors().editor_background,                local_player: cx.theme().players().local(),                text: text_style,                ..Default::default()            },        )    }} impl Render for Console {    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {        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;                });            });        });         v_flex()            .key_context("DebugConsole")            .on_action(cx.listener(Self::evaluate))            .size_full()            .child(self.render_console(cx))            .when(self.is_local(cx), |this| {                this.child(self.render_query_bar(cx))                    .pt(DynamicSpacing::Base04.rems(cx))            })            .border_2()    }} 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<Option<Vec<Completion>>>> {        let Some(console) = self.0.upgrade() else {            return Task::ready(Ok(None));        };         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<gpui::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<gpui::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<Option<Vec<Completion>>>> {        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| {            let matches = fuzzy::match_strings(                &string_matches,                &query,                true,                10,                &Default::default(),                cx.background_executor().clone(),            )            .await;             Ok(Some(                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.clone(), variable_value),                                runs: Vec::new(),                            },                            icon_path: None,                            documentation: None,                            confirm: None,                            source: project::CompletionSource::Custom,                            insert_text_mode: None,                        })                    })                    .collect(),            ))        })    }     fn client_completions(        &self,        console: &Entity<Console>,        buffer: &Entity<Buffer>,        buffer_position: language::Anchor,        cx: &mut Context<Editor>,    ) -> Task<Result<Option<Vec<Completion>>>> {        let completion_task = console.update(cx, |console, cx| {            console.session.update(cx, |state, cx| {                let frame_id = console.stack_frame_list.read(cx).current_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?;             Ok(Some(                completions                    .into_iter()                    .map(|completion| {                        let new_text = completion                            .text                            .as_ref()                            .unwrap_or(&completion.label)                            .to_owned();                        let mut word_bytes_length = 0;                        for chunk in snapshot                            .reversed_chunks_in_range(language::Anchor::MIN..buffer_position)                        {                            let mut processed_bytes = 0;                            if let Some(_) = chunk.chars().rfind(|c| {                                let is_whitespace = c.is_whitespace();                                if !is_whitespace {                                    processed_bytes += c.len_utf8();                                }                                 is_whitespace                            }) {                                word_bytes_length += processed_bytes;                                break;                            } else {                                word_bytes_length += chunk.len();                            }                        }                         let buffer_offset = buffer_position.to_offset(&snapshot);                        let start = buffer_offset - word_bytes_length;                        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(),            ))        })    }}