assistant_panel.rs

   1use crate::{
   2    assistant_settings::{AssistantDockPosition, AssistantSettings, OpenAiModel},
   3    codegen::{self, Codegen, CodegenKind},
   4    prompts::generate_content_prompt,
   5    Assist, CycleMessageRole, InlineAssist, MessageId, MessageMetadata, MessageStatus,
   6    NewConversation, QuoteSelection, ResetKey, Role, SavedConversation, SavedConversationMetadata,
   7    SavedMessage, Split, ToggleFocus, ToggleIncludeConversation, ToggleRetrieveContext,
   8};
   9use ai::prompts::repository_context::PromptCodeSnippet;
  10use ai::providers::open_ai::OPEN_AI_API_URL;
  11use ai::{
  12    auth::ProviderCredential,
  13    completion::{CompletionProvider, CompletionRequest},
  14    providers::open_ai::{OpenAiCompletionProvider, OpenAiRequest, RequestMessage},
  15};
  16use anyhow::{anyhow, Result};
  17use chrono::{DateTime, Local};
  18use collections::{hash_map, HashMap, HashSet, VecDeque};
  19use editor::{
  20    actions::{MoveDown, MoveUp},
  21    display_map::{
  22        BlockContext, BlockDisposition, BlockId, BlockProperties, BlockStyle, ToDisplayPoint,
  23    },
  24    scroll::{Autoscroll, AutoscrollStrategy},
  25    Anchor, Editor, EditorElement, EditorEvent, EditorStyle, MultiBufferSnapshot, ToOffset,
  26    ToPoint,
  27};
  28use fs::Fs;
  29use futures::StreamExt;
  30use gpui::{
  31    canvas, div, point, relative, rems, uniform_list, Action, AnyElement, AppContext,
  32    AsyncAppContext, AsyncWindowContext, AvailableSpace, ClipboardItem, Context, EventEmitter,
  33    FocusHandle, FocusableView, FontStyle, FontWeight, HighlightStyle, InteractiveElement,
  34    IntoElement, Model, ModelContext, ParentElement, Pixels, PromptLevel, Render, SharedString,
  35    StatefulInteractiveElement, Styled, Subscription, Task, TextStyle, UniformListScrollHandle,
  36    View, ViewContext, VisualContext, WeakModel, WeakView, WhiteSpace, WindowContext,
  37};
  38use language::{language_settings::SoftWrap, Buffer, BufferId, LanguageRegistry, ToOffset as _};
  39use project::Project;
  40use search::{buffer_search::DivRegistrar, BufferSearchBar};
  41use semantic_index::{SemanticIndex, SemanticIndexStatus};
  42use settings::Settings;
  43use std::{
  44    cell::Cell,
  45    cmp,
  46    fmt::Write,
  47    iter,
  48    ops::Range,
  49    path::{Path, PathBuf},
  50    rc::Rc,
  51    sync::Arc,
  52    time::{Duration, Instant},
  53};
  54use telemetry_events::AssistantKind;
  55use theme::ThemeSettings;
  56use ui::{
  57    prelude::*,
  58    utils::{DateTimeType, FormatDistance},
  59    ButtonLike, Tab, TabBar, Tooltip,
  60};
  61use util::{paths::CONVERSATIONS_DIR, post_inc, ResultExt, TryFutureExt};
  62use uuid::Uuid;
  63use workspace::{
  64    dock::{DockPosition, Panel, PanelEvent},
  65    searchable::Direction,
  66    Save, Toast, ToggleZoom, Toolbar, Workspace,
  67};
  68
  69pub fn init(cx: &mut AppContext) {
  70    AssistantSettings::register(cx);
  71    cx.observe_new_views(
  72        |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
  73            workspace
  74                .register_action(|workspace, _: &ToggleFocus, cx| {
  75                    workspace.toggle_panel_focus::<AssistantPanel>(cx);
  76                })
  77                .register_action(AssistantPanel::inline_assist)
  78                .register_action(AssistantPanel::cancel_last_inline_assist)
  79                .register_action(ConversationEditor::quote_selection);
  80        },
  81    )
  82    .detach();
  83}
  84
  85pub struct AssistantPanel {
  86    workspace: WeakView<Workspace>,
  87    width: Option<Pixels>,
  88    height: Option<Pixels>,
  89    active_editor_index: Option<usize>,
  90    prev_active_editor_index: Option<usize>,
  91    editors: Vec<View<ConversationEditor>>,
  92    saved_conversations: Vec<SavedConversationMetadata>,
  93    saved_conversations_scroll_handle: UniformListScrollHandle,
  94    zoomed: bool,
  95    focus_handle: FocusHandle,
  96    toolbar: View<Toolbar>,
  97    completion_provider: Arc<dyn CompletionProvider>,
  98    api_key_editor: Option<View<Editor>>,
  99    languages: Arc<LanguageRegistry>,
 100    fs: Arc<dyn Fs>,
 101    subscriptions: Vec<Subscription>,
 102    next_inline_assist_id: usize,
 103    pending_inline_assists: HashMap<usize, PendingInlineAssist>,
 104    pending_inline_assist_ids_by_editor: HashMap<WeakView<Editor>, Vec<usize>>,
 105    include_conversation_in_next_inline_assist: bool,
 106    inline_prompt_history: VecDeque<String>,
 107    _watch_saved_conversations: Task<Result<()>>,
 108    semantic_index: Option<Model<SemanticIndex>>,
 109    retrieve_context_in_next_inline_assist: bool,
 110}
 111
 112impl AssistantPanel {
 113    const INLINE_PROMPT_HISTORY_MAX_LEN: usize = 20;
 114
 115    pub fn load(
 116        workspace: WeakView<Workspace>,
 117        cx: AsyncWindowContext,
 118    ) -> Task<Result<View<Self>>> {
 119        cx.spawn(|mut cx| async move {
 120            let fs = workspace.update(&mut cx, |workspace, _| workspace.app_state().fs.clone())?;
 121            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 122                .await
 123                .log_err()
 124                .unwrap_or_default();
 125            let (api_url, model_name) = cx.update(|cx| {
 126                let settings = AssistantSettings::get_global(cx);
 127                (
 128                    settings.openai_api_url.clone(),
 129                    settings.default_open_ai_model.full_name().to_string(),
 130                )
 131            })?;
 132            let completion_provider = OpenAiCompletionProvider::new(
 133                api_url,
 134                model_name,
 135                cx.background_executor().clone(),
 136            )
 137            .await;
 138
 139            // TODO: deserialize state.
 140            let workspace_handle = workspace.clone();
 141            workspace.update(&mut cx, |workspace, cx| {
 142                cx.new_view::<Self>(|cx| {
 143                    const CONVERSATION_WATCH_DURATION: Duration = Duration::from_millis(100);
 144                    let _watch_saved_conversations = cx.spawn(move |this, mut cx| async move {
 145                        let mut events = fs
 146                            .watch(&CONVERSATIONS_DIR, CONVERSATION_WATCH_DURATION)
 147                            .await;
 148                        while events.next().await.is_some() {
 149                            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 150                                .await
 151                                .log_err()
 152                                .unwrap_or_default();
 153                            this.update(&mut cx, |this, cx| {
 154                                this.saved_conversations = saved_conversations;
 155                                cx.notify();
 156                            })
 157                            .ok();
 158                        }
 159
 160                        anyhow::Ok(())
 161                    });
 162
 163                    let toolbar = cx.new_view(|cx| {
 164                        let mut toolbar = Toolbar::new();
 165                        toolbar.set_can_navigate(false, cx);
 166                        toolbar.add_item(cx.new_view(|cx| BufferSearchBar::new(cx)), cx);
 167                        toolbar
 168                    });
 169
 170                    let semantic_index = SemanticIndex::global(cx);
 171
 172                    let focus_handle = cx.focus_handle();
 173                    cx.on_focus_in(&focus_handle, Self::focus_in).detach();
 174                    cx.on_focus_out(&focus_handle, Self::focus_out).detach();
 175
 176                    Self {
 177                        workspace: workspace_handle,
 178                        active_editor_index: Default::default(),
 179                        prev_active_editor_index: Default::default(),
 180                        editors: Default::default(),
 181                        saved_conversations,
 182                        saved_conversations_scroll_handle: Default::default(),
 183                        zoomed: false,
 184                        focus_handle,
 185                        toolbar,
 186                        completion_provider: Arc::new(completion_provider),
 187                        api_key_editor: None,
 188                        languages: workspace.app_state().languages.clone(),
 189                        fs: workspace.app_state().fs.clone(),
 190                        width: None,
 191                        height: None,
 192                        subscriptions: Default::default(),
 193                        next_inline_assist_id: 0,
 194                        pending_inline_assists: Default::default(),
 195                        pending_inline_assist_ids_by_editor: Default::default(),
 196                        include_conversation_in_next_inline_assist: false,
 197                        inline_prompt_history: Default::default(),
 198                        _watch_saved_conversations,
 199                        semantic_index,
 200                        retrieve_context_in_next_inline_assist: false,
 201                    }
 202                })
 203            })
 204        })
 205    }
 206
 207    fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
 208        self.toolbar
 209            .update(cx, |toolbar, cx| toolbar.focus_changed(true, cx));
 210        cx.notify();
 211        if self.focus_handle.is_focused(cx) {
 212            if self.has_credentials() {
 213                if let Some(editor) = self.active_editor() {
 214                    cx.focus_view(editor);
 215                }
 216            }
 217
 218            if let Some(api_key_editor) = self.api_key_editor.as_ref() {
 219                cx.focus_view(api_key_editor);
 220            }
 221        }
 222    }
 223
 224    fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
 225        self.toolbar
 226            .update(cx, |toolbar, cx| toolbar.focus_changed(false, cx));
 227        cx.notify();
 228    }
 229
 230    pub fn inline_assist(
 231        workspace: &mut Workspace,
 232        _: &InlineAssist,
 233        cx: &mut ViewContext<Workspace>,
 234    ) {
 235        let Some(assistant) = workspace.panel::<AssistantPanel>(cx) else {
 236            return;
 237        };
 238        let active_editor = if let Some(active_editor) = workspace
 239            .active_item(cx)
 240            .and_then(|item| item.act_as::<Editor>(cx))
 241        {
 242            active_editor
 243        } else {
 244            return;
 245        };
 246        let project = workspace.project().clone();
 247
 248        if assistant.update(cx, |assistant, _| assistant.has_credentials()) {
 249            assistant.update(cx, |assistant, cx| {
 250                assistant.new_inline_assist(&active_editor, cx, &project)
 251            });
 252        } else {
 253            let assistant = assistant.downgrade();
 254            cx.spawn(|workspace, mut cx| async move {
 255                assistant
 256                    .update(&mut cx, |assistant, cx| assistant.load_credentials(cx))?
 257                    .await;
 258                if assistant.update(&mut cx, |assistant, _| assistant.has_credentials())? {
 259                    assistant.update(&mut cx, |assistant, cx| {
 260                        assistant.new_inline_assist(&active_editor, cx, &project)
 261                    })?;
 262                } else {
 263                    workspace.update(&mut cx, |workspace, cx| {
 264                        workspace.focus_panel::<AssistantPanel>(cx)
 265                    })?;
 266                }
 267
 268                anyhow::Ok(())
 269            })
 270            .detach_and_log_err(cx)
 271        }
 272    }
 273
 274    fn new_inline_assist(
 275        &mut self,
 276        editor: &View<Editor>,
 277        cx: &mut ViewContext<Self>,
 278        project: &Model<Project>,
 279    ) {
 280        let selection = editor.read(cx).selections.newest_anchor().clone();
 281        if selection.start.excerpt_id != selection.end.excerpt_id {
 282            return;
 283        }
 284        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 285
 286        // Extend the selection to the start and the end of the line.
 287        let mut point_selection = selection.map(|selection| selection.to_point(&snapshot));
 288        if point_selection.end > point_selection.start {
 289            point_selection.start.column = 0;
 290            // If the selection ends at the start of the line, we don't want to include it.
 291            if point_selection.end.column == 0 {
 292                point_selection.end.row -= 1;
 293            }
 294            point_selection.end.column = snapshot.line_len(point_selection.end.row);
 295        }
 296
 297        let codegen_kind = if point_selection.start == point_selection.end {
 298            CodegenKind::Generate {
 299                position: snapshot.anchor_after(point_selection.start),
 300            }
 301        } else {
 302            CodegenKind::Transform {
 303                range: snapshot.anchor_before(point_selection.start)
 304                    ..snapshot.anchor_after(point_selection.end),
 305            }
 306        };
 307
 308        let inline_assist_id = post_inc(&mut self.next_inline_assist_id);
 309        let provider = self.completion_provider.clone();
 310
 311        let codegen = cx.new_model(|cx| {
 312            Codegen::new(editor.read(cx).buffer().clone(), codegen_kind, provider, cx)
 313        });
 314
 315        if let Some(semantic_index) = self.semantic_index.clone() {
 316            let project = project.clone();
 317            cx.spawn(|_, mut cx| async move {
 318                let previously_indexed = semantic_index
 319                    .update(&mut cx, |index, cx| {
 320                        index.project_previously_indexed(&project, cx)
 321                    })?
 322                    .await
 323                    .unwrap_or(false);
 324                if previously_indexed {
 325                    let _ = semantic_index
 326                        .update(&mut cx, |index, cx| {
 327                            index.index_project(project.clone(), cx)
 328                        })?
 329                        .await;
 330                }
 331                anyhow::Ok(())
 332            })
 333            .detach_and_log_err(cx);
 334        }
 335
 336        let measurements = Rc::new(Cell::new(BlockMeasurements::default()));
 337        let inline_assistant = cx.new_view(|cx| {
 338            InlineAssistant::new(
 339                inline_assist_id,
 340                measurements.clone(),
 341                self.include_conversation_in_next_inline_assist,
 342                self.inline_prompt_history.clone(),
 343                codegen.clone(),
 344                self.workspace.clone(),
 345                cx,
 346                self.retrieve_context_in_next_inline_assist,
 347                self.semantic_index.clone(),
 348                project.clone(),
 349            )
 350        });
 351        let block_id = editor.update(cx, |editor, cx| {
 352            editor.change_selections(None, cx, |selections| {
 353                selections.select_anchor_ranges([selection.head()..selection.head()])
 354            });
 355            editor.insert_blocks(
 356                [BlockProperties {
 357                    style: BlockStyle::Flex,
 358                    position: snapshot.anchor_before(point_selection.head()),
 359                    height: 2,
 360                    render: Arc::new({
 361                        let inline_assistant = inline_assistant.clone();
 362                        move |cx: &mut BlockContext| {
 363                            measurements.set(BlockMeasurements {
 364                                anchor_x: cx.anchor_x,
 365                                gutter_width: cx.gutter_dimensions.width,
 366                            });
 367                            inline_assistant.clone().into_any_element()
 368                        }
 369                    }),
 370                    disposition: if selection.reversed {
 371                        BlockDisposition::Above
 372                    } else {
 373                        BlockDisposition::Below
 374                    },
 375                }],
 376                Some(Autoscroll::Strategy(AutoscrollStrategy::Newest)),
 377                cx,
 378            )[0]
 379        });
 380
 381        self.pending_inline_assists.insert(
 382            inline_assist_id,
 383            PendingInlineAssist {
 384                editor: editor.downgrade(),
 385                inline_assistant: Some((block_id, inline_assistant.clone())),
 386                codegen: codegen.clone(),
 387                project: project.downgrade(),
 388                _subscriptions: vec![
 389                    cx.subscribe(&inline_assistant, Self::handle_inline_assistant_event),
 390                    cx.subscribe(editor, {
 391                        let inline_assistant = inline_assistant.downgrade();
 392                        move |_, editor, event, cx| {
 393                            if let Some(inline_assistant) = inline_assistant.upgrade() {
 394                                if let EditorEvent::SelectionsChanged { local } = event {
 395                                    if *local
 396                                        && inline_assistant.focus_handle(cx).contains_focused(cx)
 397                                    {
 398                                        cx.focus_view(&editor);
 399                                    }
 400                                }
 401                            }
 402                        }
 403                    }),
 404                    cx.observe(&codegen, {
 405                        let editor = editor.downgrade();
 406                        move |this, _, cx| {
 407                            if let Some(editor) = editor.upgrade() {
 408                                this.update_highlights_for_editor(&editor, cx);
 409                            }
 410                        }
 411                    }),
 412                    cx.subscribe(&codegen, move |this, codegen, event, cx| match event {
 413                        codegen::Event::Undone => {
 414                            this.finish_inline_assist(inline_assist_id, false, cx)
 415                        }
 416                        codegen::Event::Finished => {
 417                            let pending_assist = if let Some(pending_assist) =
 418                                this.pending_inline_assists.get(&inline_assist_id)
 419                            {
 420                                pending_assist
 421                            } else {
 422                                return;
 423                            };
 424
 425                            let error = codegen
 426                                .read(cx)
 427                                .error()
 428                                .map(|error| format!("Inline assistant error: {}", error));
 429                            if let Some(error) = error {
 430                                if pending_assist.inline_assistant.is_none() {
 431                                    if let Some(workspace) = this.workspace.upgrade() {
 432                                        workspace.update(cx, |workspace, cx| {
 433                                            workspace.show_toast(
 434                                                Toast::new(inline_assist_id, error),
 435                                                cx,
 436                                            );
 437                                        })
 438                                    }
 439
 440                                    this.finish_inline_assist(inline_assist_id, false, cx);
 441                                }
 442                            } else {
 443                                this.finish_inline_assist(inline_assist_id, false, cx);
 444                            }
 445                        }
 446                    }),
 447                ],
 448            },
 449        );
 450        self.pending_inline_assist_ids_by_editor
 451            .entry(editor.downgrade())
 452            .or_default()
 453            .push(inline_assist_id);
 454        self.update_highlights_for_editor(&editor, cx);
 455    }
 456
 457    fn handle_inline_assistant_event(
 458        &mut self,
 459        inline_assistant: View<InlineAssistant>,
 460        event: &InlineAssistantEvent,
 461        cx: &mut ViewContext<Self>,
 462    ) {
 463        let assist_id = inline_assistant.read(cx).id;
 464        match event {
 465            InlineAssistantEvent::Confirmed {
 466                prompt,
 467                include_conversation,
 468                retrieve_context,
 469            } => {
 470                self.confirm_inline_assist(
 471                    assist_id,
 472                    prompt,
 473                    *include_conversation,
 474                    cx,
 475                    *retrieve_context,
 476                );
 477            }
 478            InlineAssistantEvent::Canceled => {
 479                self.finish_inline_assist(assist_id, true, cx);
 480            }
 481            InlineAssistantEvent::Dismissed => {
 482                self.hide_inline_assist(assist_id, cx);
 483            }
 484            InlineAssistantEvent::IncludeConversationToggled {
 485                include_conversation,
 486            } => {
 487                self.include_conversation_in_next_inline_assist = *include_conversation;
 488            }
 489            InlineAssistantEvent::RetrieveContextToggled { retrieve_context } => {
 490                self.retrieve_context_in_next_inline_assist = *retrieve_context
 491            }
 492        }
 493    }
 494
 495    fn cancel_last_inline_assist(
 496        workspace: &mut Workspace,
 497        _: &editor::actions::Cancel,
 498        cx: &mut ViewContext<Workspace>,
 499    ) {
 500        if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 501            if let Some(editor) = workspace
 502                .active_item(cx)
 503                .and_then(|item| item.downcast::<Editor>())
 504            {
 505                let handled = panel.update(cx, |panel, cx| {
 506                    if let Some(assist_id) = panel
 507                        .pending_inline_assist_ids_by_editor
 508                        .get(&editor.downgrade())
 509                        .and_then(|assist_ids| assist_ids.last().copied())
 510                    {
 511                        panel.finish_inline_assist(assist_id, true, cx);
 512                        true
 513                    } else {
 514                        false
 515                    }
 516                });
 517                if handled {
 518                    return;
 519                }
 520            }
 521        }
 522
 523        cx.propagate();
 524    }
 525
 526    fn finish_inline_assist(&mut self, assist_id: usize, undo: bool, cx: &mut ViewContext<Self>) {
 527        self.hide_inline_assist(assist_id, cx);
 528
 529        if let Some(pending_assist) = self.pending_inline_assists.remove(&assist_id) {
 530            if let hash_map::Entry::Occupied(mut entry) = self
 531                .pending_inline_assist_ids_by_editor
 532                .entry(pending_assist.editor.clone())
 533            {
 534                entry.get_mut().retain(|id| *id != assist_id);
 535                if entry.get().is_empty() {
 536                    entry.remove();
 537                }
 538            }
 539
 540            if let Some(editor) = pending_assist.editor.upgrade() {
 541                self.update_highlights_for_editor(&editor, cx);
 542
 543                if undo {
 544                    pending_assist
 545                        .codegen
 546                        .update(cx, |codegen, cx| codegen.undo(cx));
 547                }
 548            }
 549        }
 550    }
 551
 552    fn hide_inline_assist(&mut self, assist_id: usize, cx: &mut ViewContext<Self>) {
 553        if let Some(pending_assist) = self.pending_inline_assists.get_mut(&assist_id) {
 554            if let Some(editor) = pending_assist.editor.upgrade() {
 555                if let Some((block_id, inline_assistant)) = pending_assist.inline_assistant.take() {
 556                    editor.update(cx, |editor, cx| {
 557                        editor.remove_blocks(HashSet::from_iter([block_id]), None, cx);
 558                        if inline_assistant.focus_handle(cx).contains_focused(cx) {
 559                            editor.focus(cx);
 560                        }
 561                    });
 562                }
 563            }
 564        }
 565    }
 566
 567    fn confirm_inline_assist(
 568        &mut self,
 569        inline_assist_id: usize,
 570        user_prompt: &str,
 571        include_conversation: bool,
 572        cx: &mut ViewContext<Self>,
 573        retrieve_context: bool,
 574    ) {
 575        let conversation = if include_conversation {
 576            self.active_editor()
 577                .map(|editor| editor.read(cx).conversation.clone())
 578        } else {
 579            None
 580        };
 581
 582        let pending_assist =
 583            if let Some(pending_assist) = self.pending_inline_assists.get_mut(&inline_assist_id) {
 584                pending_assist
 585            } else {
 586                return;
 587            };
 588
 589        let editor = if let Some(editor) = pending_assist.editor.upgrade() {
 590            editor
 591        } else {
 592            return;
 593        };
 594
 595        let project = pending_assist.project.clone();
 596
 597        let project_name = if let Some(project) = project.upgrade() {
 598            Some(
 599                project
 600                    .read(cx)
 601                    .worktree_root_names(cx)
 602                    .collect::<Vec<&str>>()
 603                    .join("/"),
 604            )
 605        } else {
 606            None
 607        };
 608
 609        self.inline_prompt_history
 610            .retain(|prompt| prompt != user_prompt);
 611        self.inline_prompt_history.push_back(user_prompt.into());
 612        if self.inline_prompt_history.len() > Self::INLINE_PROMPT_HISTORY_MAX_LEN {
 613            self.inline_prompt_history.pop_front();
 614        }
 615
 616        let codegen = pending_assist.codegen.clone();
 617        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 618        let range = codegen.read(cx).range();
 619        let start = snapshot.point_to_buffer_offset(range.start);
 620        let end = snapshot.point_to_buffer_offset(range.end);
 621        let (buffer, range) = if let Some((start, end)) = start.zip(end) {
 622            let (start_buffer, start_buffer_offset) = start;
 623            let (end_buffer, end_buffer_offset) = end;
 624            if start_buffer.remote_id() == end_buffer.remote_id() {
 625                (start_buffer.clone(), start_buffer_offset..end_buffer_offset)
 626            } else {
 627                self.finish_inline_assist(inline_assist_id, false, cx);
 628                return;
 629            }
 630        } else {
 631            self.finish_inline_assist(inline_assist_id, false, cx);
 632            return;
 633        };
 634
 635        let language = buffer.language_at(range.start);
 636        let language_name = if let Some(language) = language.as_ref() {
 637            if Arc::ptr_eq(language, &language::PLAIN_TEXT) {
 638                None
 639            } else {
 640                Some(language.name())
 641            }
 642        } else {
 643            None
 644        };
 645
 646        // Higher Temperature increases the randomness of model outputs.
 647        // If Markdown or No Language is Known, increase the randomness for more creative output
 648        // If Code, decrease temperature to get more deterministic outputs
 649        let temperature = if let Some(language) = language_name.clone() {
 650            if language.to_string() != "Markdown".to_string() {
 651                0.5
 652            } else {
 653                1.0
 654            }
 655        } else {
 656            1.0
 657        };
 658
 659        let user_prompt = user_prompt.to_string();
 660
 661        let snippets = if retrieve_context {
 662            let Some(project) = project.upgrade() else {
 663                return;
 664            };
 665
 666            let search_results = if let Some(semantic_index) = self.semantic_index.clone() {
 667                let search_results = semantic_index.update(cx, |this, cx| {
 668                    this.search_project(project, user_prompt.to_string(), 10, vec![], vec![], cx)
 669                });
 670
 671                cx.background_executor()
 672                    .spawn(async move { search_results.await.unwrap_or_default() })
 673            } else {
 674                Task::ready(Vec::new())
 675            };
 676
 677            let snippets = cx.spawn(|_, mut cx| async move {
 678                let mut snippets = Vec::new();
 679                for result in search_results.await {
 680                    snippets.push(PromptCodeSnippet::new(
 681                        result.buffer,
 682                        result.range,
 683                        &mut cx,
 684                    )?);
 685                }
 686                anyhow::Ok(snippets)
 687            });
 688            snippets
 689        } else {
 690            Task::ready(Ok(Vec::new()))
 691        };
 692
 693        let mut model = AssistantSettings::get_global(cx)
 694            .default_open_ai_model
 695            .clone();
 696        let model_name = model.full_name();
 697
 698        let prompt = cx.background_executor().spawn(async move {
 699            let snippets = snippets.await?;
 700
 701            let language_name = language_name.as_deref();
 702            generate_content_prompt(
 703                user_prompt,
 704                language_name,
 705                buffer,
 706                range,
 707                snippets,
 708                model_name,
 709                project_name,
 710            )
 711        });
 712
 713        let mut messages = Vec::new();
 714        if let Some(conversation) = conversation {
 715            let conversation = conversation.read(cx);
 716            let buffer = conversation.buffer.read(cx);
 717            messages.extend(
 718                conversation
 719                    .messages(cx)
 720                    .map(|message| message.to_open_ai_message(buffer)),
 721            );
 722            model = conversation.model.clone();
 723        }
 724
 725        cx.spawn(|_, mut cx| async move {
 726            // I Don't know if we want to return a ? here.
 727            let prompt = prompt.await?;
 728
 729            messages.push(RequestMessage {
 730                role: Role::User,
 731                content: prompt,
 732            });
 733
 734            let request = Box::new(OpenAiRequest {
 735                model: model.full_name().into(),
 736                messages,
 737                stream: true,
 738                stop: vec!["|END|>".to_string()],
 739                temperature,
 740            });
 741
 742            codegen.update(&mut cx, |codegen, cx| codegen.start(request, cx))?;
 743            anyhow::Ok(())
 744        })
 745        .detach();
 746    }
 747
 748    fn update_highlights_for_editor(&self, editor: &View<Editor>, cx: &mut ViewContext<Self>) {
 749        let mut background_ranges = Vec::new();
 750        let mut foreground_ranges = Vec::new();
 751        let empty_inline_assist_ids = Vec::new();
 752        let inline_assist_ids = self
 753            .pending_inline_assist_ids_by_editor
 754            .get(&editor.downgrade())
 755            .unwrap_or(&empty_inline_assist_ids);
 756
 757        for inline_assist_id in inline_assist_ids {
 758            if let Some(pending_assist) = self.pending_inline_assists.get(inline_assist_id) {
 759                let codegen = pending_assist.codegen.read(cx);
 760                background_ranges.push(codegen.range());
 761                foreground_ranges.extend(codegen.last_equal_ranges().iter().cloned());
 762            }
 763        }
 764
 765        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 766        merge_ranges(&mut background_ranges, &snapshot);
 767        merge_ranges(&mut foreground_ranges, &snapshot);
 768        editor.update(cx, |editor, cx| {
 769            if background_ranges.is_empty() {
 770                editor.clear_background_highlights::<PendingInlineAssist>(cx);
 771            } else {
 772                editor.highlight_background::<PendingInlineAssist>(
 773                    background_ranges,
 774                    |theme| theme.editor_active_line_background, // todo!("use the appropriate color")
 775                    cx,
 776                );
 777            }
 778
 779            if foreground_ranges.is_empty() {
 780                editor.clear_highlights::<PendingInlineAssist>(cx);
 781            } else {
 782                editor.highlight_text::<PendingInlineAssist>(
 783                    foreground_ranges,
 784                    HighlightStyle {
 785                        fade_out: Some(0.6),
 786                        ..Default::default()
 787                    },
 788                    cx,
 789                );
 790            }
 791        });
 792    }
 793
 794    fn build_api_key_editor(&mut self, cx: &mut WindowContext<'_>) {
 795        self.api_key_editor = Some(build_api_key_editor(cx));
 796    }
 797
 798    fn new_conversation(&mut self, cx: &mut ViewContext<Self>) -> View<ConversationEditor> {
 799        let editor = cx.new_view(|cx| {
 800            ConversationEditor::new(
 801                self.completion_provider.clone(),
 802                self.languages.clone(),
 803                self.fs.clone(),
 804                self.workspace.clone(),
 805                cx,
 806            )
 807        });
 808        self.add_conversation(editor.clone(), cx);
 809        editor
 810    }
 811
 812    fn add_conversation(&mut self, editor: View<ConversationEditor>, cx: &mut ViewContext<Self>) {
 813        self.subscriptions
 814            .push(cx.subscribe(&editor, Self::handle_conversation_editor_event));
 815
 816        let conversation = editor.read(cx).conversation.clone();
 817        self.subscriptions
 818            .push(cx.observe(&conversation, |_, _, cx| cx.notify()));
 819
 820        let index = self.editors.len();
 821        self.editors.push(editor);
 822        self.set_active_editor_index(Some(index), cx);
 823    }
 824
 825    fn set_active_editor_index(&mut self, index: Option<usize>, cx: &mut ViewContext<Self>) {
 826        self.prev_active_editor_index = self.active_editor_index;
 827        self.active_editor_index = index;
 828        if let Some(editor) = self.active_editor() {
 829            let editor = editor.read(cx).editor.clone();
 830            self.toolbar.update(cx, |toolbar, cx| {
 831                toolbar.set_active_item(Some(&editor), cx);
 832            });
 833            if self.focus_handle.contains_focused(cx) {
 834                cx.focus_view(&editor);
 835            }
 836        } else {
 837            self.toolbar.update(cx, |toolbar, cx| {
 838                toolbar.set_active_item(None, cx);
 839            });
 840        }
 841
 842        cx.notify();
 843    }
 844
 845    fn handle_conversation_editor_event(
 846        &mut self,
 847        _: View<ConversationEditor>,
 848        event: &ConversationEditorEvent,
 849        cx: &mut ViewContext<Self>,
 850    ) {
 851        match event {
 852            ConversationEditorEvent::TabContentChanged => cx.notify(),
 853        }
 854    }
 855
 856    fn save_credentials(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
 857        if let Some(api_key) = self
 858            .api_key_editor
 859            .as_ref()
 860            .map(|editor| editor.read(cx).text(cx))
 861        {
 862            if !api_key.is_empty() {
 863                let credential = ProviderCredential::Credentials {
 864                    api_key: api_key.clone(),
 865                };
 866
 867                let completion_provider = self.completion_provider.clone();
 868                cx.spawn(|this, mut cx| async move {
 869                    cx.update(|cx| completion_provider.save_credentials(cx, credential))?
 870                        .await;
 871
 872                    this.update(&mut cx, |this, cx| {
 873                        this.api_key_editor.take();
 874                        this.focus_handle.focus(cx);
 875                        cx.notify();
 876                    })
 877                })
 878                .detach_and_log_err(cx);
 879            }
 880        } else {
 881            cx.propagate();
 882        }
 883    }
 884
 885    fn reset_credentials(&mut self, _: &ResetKey, cx: &mut ViewContext<Self>) {
 886        let completion_provider = self.completion_provider.clone();
 887        cx.spawn(|this, mut cx| async move {
 888            cx.update(|cx| completion_provider.delete_credentials(cx))?
 889                .await;
 890            this.update(&mut cx, |this, cx| {
 891                this.build_api_key_editor(cx);
 892                this.focus_handle.focus(cx);
 893                cx.notify();
 894            })
 895        })
 896        .detach_and_log_err(cx);
 897    }
 898
 899    fn toggle_zoom(&mut self, _: &workspace::ToggleZoom, cx: &mut ViewContext<Self>) {
 900        if self.zoomed {
 901            cx.emit(PanelEvent::ZoomOut)
 902        } else {
 903            cx.emit(PanelEvent::ZoomIn)
 904        }
 905    }
 906
 907    fn deploy(&mut self, action: &search::buffer_search::Deploy, cx: &mut ViewContext<Self>) {
 908        let mut propagate = true;
 909        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 910            search_bar.update(cx, |search_bar, cx| {
 911                if search_bar.show(cx) {
 912                    search_bar.search_suggested(cx);
 913                    if action.focus {
 914                        let focus_handle = search_bar.focus_handle(cx);
 915                        search_bar.select_query(cx);
 916                        cx.focus(&focus_handle);
 917                    }
 918                    propagate = false
 919                }
 920            });
 921        }
 922        if propagate {
 923            cx.propagate();
 924        }
 925    }
 926
 927    fn handle_editor_cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
 928        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 929            if !search_bar.read(cx).is_dismissed() {
 930                search_bar.update(cx, |search_bar, cx| {
 931                    search_bar.dismiss(&Default::default(), cx)
 932                });
 933                return;
 934            }
 935        }
 936        cx.propagate();
 937    }
 938
 939    fn select_next_match(&mut self, _: &search::SelectNextMatch, cx: &mut ViewContext<Self>) {
 940        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 941            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Next, 1, cx));
 942        }
 943    }
 944
 945    fn select_prev_match(&mut self, _: &search::SelectPrevMatch, cx: &mut ViewContext<Self>) {
 946        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 947            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Prev, 1, cx));
 948        }
 949    }
 950
 951    fn active_editor(&self) -> Option<&View<ConversationEditor>> {
 952        self.editors.get(self.active_editor_index?)
 953    }
 954
 955    fn render_api_key_editor(
 956        &self,
 957        editor: &View<Editor>,
 958        cx: &mut ViewContext<Self>,
 959    ) -> impl IntoElement {
 960        let settings = ThemeSettings::get_global(cx);
 961        let text_style = TextStyle {
 962            color: if editor.read(cx).read_only(cx) {
 963                cx.theme().colors().text_disabled
 964            } else {
 965                cx.theme().colors().text
 966            },
 967            font_family: settings.ui_font.family.clone(),
 968            font_features: settings.ui_font.features,
 969            font_size: rems(0.875).into(),
 970            font_weight: FontWeight::NORMAL,
 971            font_style: FontStyle::Normal,
 972            line_height: relative(1.3).into(),
 973            background_color: None,
 974            underline: None,
 975            strikethrough: None,
 976            white_space: WhiteSpace::Normal,
 977        };
 978        EditorElement::new(
 979            &editor,
 980            EditorStyle {
 981                background: cx.theme().colors().editor_background,
 982                local_player: cx.theme().players().local(),
 983                text: text_style,
 984                ..Default::default()
 985            },
 986        )
 987    }
 988
 989    fn render_hamburger_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
 990        IconButton::new("hamburger_button", IconName::Menu)
 991            .on_click(cx.listener(|this, _event, cx| {
 992                if this.active_editor().is_some() {
 993                    this.set_active_editor_index(None, cx);
 994                } else {
 995                    this.set_active_editor_index(this.prev_active_editor_index, cx);
 996                }
 997            }))
 998            .tooltip(|cx| Tooltip::text("Conversation History", cx))
 999    }
1000
1001    fn render_editor_tools(&self, cx: &mut ViewContext<Self>) -> Vec<AnyElement> {
1002        if self.active_editor().is_some() {
1003            vec![
1004                Self::render_split_button(cx).into_any_element(),
1005                Self::render_quote_button(cx).into_any_element(),
1006                Self::render_assist_button(cx).into_any_element(),
1007            ]
1008        } else {
1009            Default::default()
1010        }
1011    }
1012
1013    fn render_split_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1014        IconButton::new("split_button", IconName::Snip)
1015            .on_click(cx.listener(|this, _event, cx| {
1016                if let Some(active_editor) = this.active_editor() {
1017                    active_editor.update(cx, |editor, cx| editor.split(&Default::default(), cx));
1018                }
1019            }))
1020            .icon_size(IconSize::Small)
1021            .tooltip(|cx| Tooltip::for_action("Split Message", &Split, cx))
1022    }
1023
1024    fn render_assist_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1025        IconButton::new("assist_button", IconName::MagicWand)
1026            .on_click(cx.listener(|this, _event, cx| {
1027                if let Some(active_editor) = this.active_editor() {
1028                    active_editor.update(cx, |editor, cx| editor.assist(&Default::default(), cx));
1029                }
1030            }))
1031            .icon_size(IconSize::Small)
1032            .tooltip(|cx| Tooltip::for_action("Assist", &Assist, cx))
1033    }
1034
1035    fn render_quote_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1036        IconButton::new("quote_button", IconName::Quote)
1037            .on_click(cx.listener(|this, _event, cx| {
1038                if let Some(workspace) = this.workspace.upgrade() {
1039                    cx.window_context().defer(move |cx| {
1040                        workspace.update(cx, |workspace, cx| {
1041                            ConversationEditor::quote_selection(workspace, &Default::default(), cx)
1042                        });
1043                    });
1044                }
1045            }))
1046            .icon_size(IconSize::Small)
1047            .tooltip(|cx| Tooltip::for_action("Quote Selection", &QuoteSelection, cx))
1048    }
1049
1050    fn render_plus_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1051        IconButton::new("plus_button", IconName::Plus)
1052            .on_click(cx.listener(|this, _event, cx| {
1053                this.new_conversation(cx);
1054            }))
1055            .icon_size(IconSize::Small)
1056            .tooltip(|cx| Tooltip::for_action("New Conversation", &NewConversation, cx))
1057    }
1058
1059    fn render_zoom_button(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1060        let zoomed = self.zoomed;
1061        IconButton::new("zoom_button", IconName::Maximize)
1062            .on_click(cx.listener(|this, _event, cx| {
1063                this.toggle_zoom(&ToggleZoom, cx);
1064            }))
1065            .selected(zoomed)
1066            .selected_icon(IconName::Minimize)
1067            .icon_size(IconSize::Small)
1068            .tooltip(move |cx| {
1069                Tooltip::for_action(if zoomed { "Zoom Out" } else { "Zoom In" }, &ToggleZoom, cx)
1070            })
1071    }
1072
1073    fn render_saved_conversation(
1074        &mut self,
1075        index: usize,
1076        cx: &mut ViewContext<Self>,
1077    ) -> impl IntoElement {
1078        let conversation = &self.saved_conversations[index];
1079        let path = conversation.path.clone();
1080
1081        ButtonLike::new(index)
1082            .on_click(cx.listener(move |this, _, cx| {
1083                this.open_conversation(path.clone(), cx)
1084                    .detach_and_log_err(cx)
1085            }))
1086            .full_width()
1087            .child(
1088                div()
1089                    .flex()
1090                    .w_full()
1091                    .gap_2()
1092                    .child(
1093                        Label::new(conversation.mtime.format("%F %I:%M%p").to_string())
1094                            .color(Color::Muted)
1095                            .size(LabelSize::Small),
1096                    )
1097                    .child(Label::new(conversation.title.clone()).size(LabelSize::Small)),
1098            )
1099    }
1100
1101    fn open_conversation(&mut self, path: PathBuf, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
1102        cx.focus(&self.focus_handle);
1103
1104        if let Some(ix) = self.editor_index_for_path(&path, cx) {
1105            self.set_active_editor_index(Some(ix), cx);
1106            return Task::ready(Ok(()));
1107        }
1108
1109        let fs = self.fs.clone();
1110        let workspace = self.workspace.clone();
1111        let languages = self.languages.clone();
1112        cx.spawn(|this, mut cx| async move {
1113            let saved_conversation = fs.load(&path).await?;
1114            let saved_conversation = serde_json::from_str(&saved_conversation)?;
1115            let conversation =
1116                Conversation::deserialize(saved_conversation, path.clone(), languages, &mut cx)
1117                    .await?;
1118
1119            this.update(&mut cx, |this, cx| {
1120                // If, by the time we've loaded the conversation, the user has already opened
1121                // the same conversation, we don't want to open it again.
1122                if let Some(ix) = this.editor_index_for_path(&path, cx) {
1123                    this.set_active_editor_index(Some(ix), cx);
1124                } else {
1125                    let editor = cx.new_view(|cx| {
1126                        ConversationEditor::for_conversation(conversation, fs, workspace, cx)
1127                    });
1128                    this.add_conversation(editor, cx);
1129                }
1130            })?;
1131            Ok(())
1132        })
1133    }
1134
1135    fn editor_index_for_path(&self, path: &Path, cx: &AppContext) -> Option<usize> {
1136        self.editors
1137            .iter()
1138            .position(|editor| editor.read(cx).conversation.read(cx).path.as_deref() == Some(path))
1139    }
1140
1141    fn has_credentials(&mut self) -> bool {
1142        self.completion_provider.has_credentials()
1143    }
1144
1145    fn load_credentials(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
1146        let completion_provider = self.completion_provider.clone();
1147        cx.spawn(|_, mut cx| async move {
1148            if let Some(retrieve_credentials) = cx
1149                .update(|cx| completion_provider.retrieve_credentials(cx))
1150                .log_err()
1151            {
1152                retrieve_credentials.await;
1153            }
1154        })
1155    }
1156}
1157
1158fn build_api_key_editor(cx: &mut WindowContext) -> View<Editor> {
1159    cx.new_view(|cx| {
1160        let mut editor = Editor::single_line(cx);
1161        editor.set_placeholder_text("sk-000000000000000000000000000000000000000000000000", cx);
1162        editor
1163    })
1164}
1165
1166impl Render for AssistantPanel {
1167    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1168        if let Some(api_key_editor) = self.api_key_editor.clone() {
1169            const INSTRUCTIONS: [&'static str; 6] = [
1170                "To use the assistant panel or inline assistant, you need to add your OpenAI API key.",
1171                " - You can create an API key at: platform.openai.com/api-keys",
1172                " - Make sure your OpenAI account has credits",
1173                " - Having a subscription for another service like GitHub Copilot won't work.",
1174                " ",
1175                "Paste your OpenAI API key and press Enter to use the assistant:"
1176            ];
1177
1178            v_flex()
1179                .p_4()
1180                .size_full()
1181                .on_action(cx.listener(AssistantPanel::save_credentials))
1182                .track_focus(&self.focus_handle)
1183                .children(
1184                    INSTRUCTIONS.map(|instruction| Label::new(instruction).size(LabelSize::Small)),
1185                )
1186                .child(
1187                    h_flex()
1188                        .w_full()
1189                        .my_2()
1190                        .px_2()
1191                        .py_1()
1192                        .bg(cx.theme().colors().editor_background)
1193                        .rounded_md()
1194                        .child(self.render_api_key_editor(&api_key_editor, cx)),
1195                )
1196                .child(
1197                    h_flex()
1198                        .gap_2()
1199                        .child(Label::new("Click on").size(LabelSize::Small))
1200                        .child(Icon::new(IconName::Ai).size(IconSize::XSmall))
1201                        .child(
1202                            Label::new("in the status bar to close this panel.")
1203                                .size(LabelSize::Small),
1204                        ),
1205                )
1206        } else {
1207            let header = TabBar::new("assistant_header")
1208                .start_child(
1209                    h_flex().gap_1().child(Self::render_hamburger_button(cx)), // .children(title),
1210                )
1211                .children(self.active_editor().map(|editor| {
1212                    h_flex()
1213                        .h(rems(Tab::CONTAINER_HEIGHT_IN_REMS))
1214                        .flex_1()
1215                        .px_2()
1216                        .child(Label::new(editor.read(cx).title(cx)).into_element())
1217                }))
1218                .when(self.focus_handle.contains_focused(cx), |this| {
1219                    this.end_child(
1220                        h_flex()
1221                            .gap_2()
1222                            .when(self.active_editor().is_some(), |this| {
1223                                this.child(h_flex().gap_1().children(self.render_editor_tools(cx)))
1224                                    .child(
1225                                        ui::Divider::vertical()
1226                                            .inset()
1227                                            .color(ui::DividerColor::Border),
1228                                    )
1229                            })
1230                            .child(
1231                                h_flex()
1232                                    .gap_1()
1233                                    .child(Self::render_plus_button(cx))
1234                                    .child(self.render_zoom_button(cx)),
1235                            ),
1236                    )
1237                });
1238
1239            let contents = if self.active_editor().is_some() {
1240                let mut registrar = DivRegistrar::new(
1241                    |panel, cx| panel.toolbar.read(cx).item_of_type::<BufferSearchBar>(),
1242                    cx,
1243                );
1244                BufferSearchBar::register(&mut registrar);
1245                registrar.into_div()
1246            } else {
1247                div()
1248            };
1249            v_flex()
1250                .key_context("AssistantPanel")
1251                .size_full()
1252                .on_action(cx.listener(|this, _: &workspace::NewFile, cx| {
1253                    this.new_conversation(cx);
1254                }))
1255                .on_action(cx.listener(AssistantPanel::reset_credentials))
1256                .on_action(cx.listener(AssistantPanel::toggle_zoom))
1257                .on_action(cx.listener(AssistantPanel::deploy))
1258                .on_action(cx.listener(AssistantPanel::select_next_match))
1259                .on_action(cx.listener(AssistantPanel::select_prev_match))
1260                .on_action(cx.listener(AssistantPanel::handle_editor_cancel))
1261                .track_focus(&self.focus_handle)
1262                .child(header)
1263                .children(if self.toolbar.read(cx).hidden() {
1264                    None
1265                } else {
1266                    Some(self.toolbar.clone())
1267                })
1268                .child(
1269                    contents
1270                        .flex_1()
1271                        .child(if let Some(editor) = self.active_editor() {
1272                            editor.clone().into_any_element()
1273                        } else {
1274                            let view = cx.view().clone();
1275                            let scroll_handle = self.saved_conversations_scroll_handle.clone();
1276                            let conversation_count = self.saved_conversations.len();
1277                            canvas(move |bounds, cx| {
1278                                uniform_list(
1279                                    view,
1280                                    "saved_conversations",
1281                                    conversation_count,
1282                                    |this, range, cx| {
1283                                        range
1284                                            .map(|ix| this.render_saved_conversation(ix, cx))
1285                                            .collect()
1286                                    },
1287                                )
1288                                .track_scroll(scroll_handle)
1289                                .into_any_element()
1290                                .draw(
1291                                    bounds.origin,
1292                                    bounds.size.map(AvailableSpace::Definite),
1293                                    cx,
1294                                );
1295                            })
1296                            .size_full()
1297                            .into_any_element()
1298                        }),
1299                )
1300        }
1301    }
1302}
1303
1304impl Panel for AssistantPanel {
1305    fn persistent_name() -> &'static str {
1306        "AssistantPanel"
1307    }
1308
1309    fn position(&self, cx: &WindowContext) -> DockPosition {
1310        match AssistantSettings::get_global(cx).dock {
1311            AssistantDockPosition::Left => DockPosition::Left,
1312            AssistantDockPosition::Bottom => DockPosition::Bottom,
1313            AssistantDockPosition::Right => DockPosition::Right,
1314        }
1315    }
1316
1317    fn position_is_valid(&self, _: DockPosition) -> bool {
1318        true
1319    }
1320
1321    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1322        settings::update_settings_file::<AssistantSettings>(self.fs.clone(), cx, move |settings| {
1323            let dock = match position {
1324                DockPosition::Left => AssistantDockPosition::Left,
1325                DockPosition::Bottom => AssistantDockPosition::Bottom,
1326                DockPosition::Right => AssistantDockPosition::Right,
1327            };
1328            settings.dock = Some(dock);
1329        });
1330    }
1331
1332    fn size(&self, cx: &WindowContext) -> Pixels {
1333        let settings = AssistantSettings::get_global(cx);
1334        match self.position(cx) {
1335            DockPosition::Left | DockPosition::Right => {
1336                self.width.unwrap_or_else(|| settings.default_width)
1337            }
1338            DockPosition::Bottom => self.height.unwrap_or_else(|| settings.default_height),
1339        }
1340    }
1341
1342    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
1343        match self.position(cx) {
1344            DockPosition::Left | DockPosition::Right => self.width = size,
1345            DockPosition::Bottom => self.height = size,
1346        }
1347        cx.notify();
1348    }
1349
1350    fn is_zoomed(&self, _: &WindowContext) -> bool {
1351        self.zoomed
1352    }
1353
1354    fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1355        self.zoomed = zoomed;
1356        cx.notify();
1357    }
1358
1359    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
1360        if active {
1361            let load_credentials = self.load_credentials(cx);
1362            cx.spawn(|this, mut cx| async move {
1363                load_credentials.await;
1364                this.update(&mut cx, |this, cx| {
1365                    if !this.has_credentials() {
1366                        this.build_api_key_editor(cx);
1367                    } else if this.editors.is_empty() {
1368                        this.new_conversation(cx);
1369                    }
1370                })
1371            })
1372            .detach_and_log_err(cx);
1373        }
1374    }
1375
1376    fn icon(&self, cx: &WindowContext) -> Option<IconName> {
1377        Some(IconName::Ai).filter(|_| AssistantSettings::get_global(cx).button)
1378    }
1379
1380    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
1381        Some("Assistant Panel")
1382    }
1383
1384    fn toggle_action(&self) -> Box<dyn Action> {
1385        Box::new(ToggleFocus)
1386    }
1387}
1388
1389impl EventEmitter<PanelEvent> for AssistantPanel {}
1390
1391impl FocusableView for AssistantPanel {
1392    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1393        self.focus_handle.clone()
1394    }
1395}
1396
1397enum ConversationEvent {
1398    MessagesEdited,
1399    SummaryChanged,
1400    StreamedCompletion,
1401}
1402
1403#[derive(Default)]
1404struct Summary {
1405    text: String,
1406    done: bool,
1407}
1408
1409struct Conversation {
1410    id: Option<String>,
1411    buffer: Model<Buffer>,
1412    message_anchors: Vec<MessageAnchor>,
1413    messages_metadata: HashMap<MessageId, MessageMetadata>,
1414    next_message_id: MessageId,
1415    summary: Option<Summary>,
1416    pending_summary: Task<Option<()>>,
1417    completion_count: usize,
1418    pending_completions: Vec<PendingCompletion>,
1419    model: OpenAiModel,
1420    api_url: Option<String>,
1421    token_count: Option<usize>,
1422    max_token_count: usize,
1423    pending_token_count: Task<Option<()>>,
1424    pending_save: Task<Result<()>>,
1425    path: Option<PathBuf>,
1426    _subscriptions: Vec<Subscription>,
1427    completion_provider: Arc<dyn CompletionProvider>,
1428}
1429
1430impl EventEmitter<ConversationEvent> for Conversation {}
1431
1432impl Conversation {
1433    fn new(
1434        language_registry: Arc<LanguageRegistry>,
1435        cx: &mut ModelContext<Self>,
1436        completion_provider: Arc<dyn CompletionProvider>,
1437    ) -> Self {
1438        let markdown = language_registry.language_for_name("Markdown");
1439        let buffer = cx.new_model(|cx| {
1440            let mut buffer = Buffer::new(0, BufferId::new(cx.entity_id().as_u64()).unwrap(), "");
1441            buffer.set_language_registry(language_registry);
1442            cx.spawn(|buffer, mut cx| async move {
1443                let markdown = markdown.await?;
1444                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1445                    buffer.set_language(Some(markdown), cx)
1446                })?;
1447                anyhow::Ok(())
1448            })
1449            .detach_and_log_err(cx);
1450            buffer
1451        });
1452
1453        let settings = AssistantSettings::get_global(cx);
1454        let model = settings.default_open_ai_model.clone();
1455        let api_url = settings.openai_api_url.clone();
1456
1457        let mut this = Self {
1458            id: Some(Uuid::new_v4().to_string()),
1459            message_anchors: Default::default(),
1460            messages_metadata: Default::default(),
1461            next_message_id: Default::default(),
1462            summary: None,
1463            pending_summary: Task::ready(None),
1464            completion_count: Default::default(),
1465            pending_completions: Default::default(),
1466            token_count: None,
1467            max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1468            pending_token_count: Task::ready(None),
1469            api_url: Some(api_url),
1470            model: model.clone(),
1471            _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1472            pending_save: Task::ready(Ok(())),
1473            path: None,
1474            buffer,
1475            completion_provider,
1476        };
1477        let message = MessageAnchor {
1478            id: MessageId(post_inc(&mut this.next_message_id.0)),
1479            start: language::Anchor::MIN,
1480        };
1481        this.message_anchors.push(message.clone());
1482        this.messages_metadata.insert(
1483            message.id,
1484            MessageMetadata {
1485                role: Role::User,
1486                sent_at: Local::now(),
1487                status: MessageStatus::Done,
1488            },
1489        );
1490
1491        this.count_remaining_tokens(cx);
1492        this
1493    }
1494
1495    fn serialize(&self, cx: &AppContext) -> SavedConversation {
1496        SavedConversation {
1497            id: self.id.clone(),
1498            zed: "conversation".into(),
1499            version: SavedConversation::VERSION.into(),
1500            text: self.buffer.read(cx).text(),
1501            message_metadata: self.messages_metadata.clone(),
1502            messages: self
1503                .messages(cx)
1504                .map(|message| SavedMessage {
1505                    id: message.id,
1506                    start: message.offset_range.start,
1507                })
1508                .collect(),
1509            summary: self
1510                .summary
1511                .as_ref()
1512                .map(|summary| summary.text.clone())
1513                .unwrap_or_default(),
1514            model: self.model.clone(),
1515            api_url: self.api_url.clone(),
1516        }
1517    }
1518
1519    async fn deserialize(
1520        saved_conversation: SavedConversation,
1521        path: PathBuf,
1522        language_registry: Arc<LanguageRegistry>,
1523        cx: &mut AsyncAppContext,
1524    ) -> Result<Model<Self>> {
1525        let id = match saved_conversation.id {
1526            Some(id) => Some(id),
1527            None => Some(Uuid::new_v4().to_string()),
1528        };
1529        let model = saved_conversation.model;
1530        let api_url = saved_conversation.api_url;
1531        let completion_provider: Arc<dyn CompletionProvider> = Arc::new(
1532            OpenAiCompletionProvider::new(
1533                api_url
1534                    .clone()
1535                    .unwrap_or_else(|| OPEN_AI_API_URL.to_string()),
1536                model.full_name().into(),
1537                cx.background_executor().clone(),
1538            )
1539            .await,
1540        );
1541        cx.update(|cx| completion_provider.retrieve_credentials(cx))?
1542            .await;
1543
1544        let markdown = language_registry.language_for_name("Markdown");
1545        let mut message_anchors = Vec::new();
1546        let mut next_message_id = MessageId(0);
1547        let buffer = cx.new_model(|cx| {
1548            let mut buffer = Buffer::new(
1549                0,
1550                BufferId::new(cx.entity_id().as_u64()).unwrap(),
1551                saved_conversation.text,
1552            );
1553            for message in saved_conversation.messages {
1554                message_anchors.push(MessageAnchor {
1555                    id: message.id,
1556                    start: buffer.anchor_before(message.start),
1557                });
1558                next_message_id = cmp::max(next_message_id, MessageId(message.id.0 + 1));
1559            }
1560            buffer.set_language_registry(language_registry);
1561            cx.spawn(|buffer, mut cx| async move {
1562                let markdown = markdown.await?;
1563                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1564                    buffer.set_language(Some(markdown), cx)
1565                })?;
1566                anyhow::Ok(())
1567            })
1568            .detach_and_log_err(cx);
1569            buffer
1570        })?;
1571
1572        cx.new_model(|cx| {
1573            let mut this = Self {
1574                id,
1575                message_anchors,
1576                messages_metadata: saved_conversation.message_metadata,
1577                next_message_id,
1578                summary: Some(Summary {
1579                    text: saved_conversation.summary,
1580                    done: true,
1581                }),
1582                pending_summary: Task::ready(None),
1583                completion_count: Default::default(),
1584                pending_completions: Default::default(),
1585                token_count: None,
1586                max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1587                pending_token_count: Task::ready(None),
1588                api_url,
1589                model,
1590                _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1591                pending_save: Task::ready(Ok(())),
1592                path: Some(path),
1593                buffer,
1594                completion_provider,
1595            };
1596            this.count_remaining_tokens(cx);
1597            this
1598        })
1599    }
1600
1601    fn handle_buffer_event(
1602        &mut self,
1603        _: Model<Buffer>,
1604        event: &language::Event,
1605        cx: &mut ModelContext<Self>,
1606    ) {
1607        match event {
1608            language::Event::Edited => {
1609                self.count_remaining_tokens(cx);
1610                cx.emit(ConversationEvent::MessagesEdited);
1611            }
1612            _ => {}
1613        }
1614    }
1615
1616    fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
1617        let messages = self
1618            .messages(cx)
1619            .into_iter()
1620            .filter_map(|message| {
1621                Some(tiktoken_rs::ChatCompletionRequestMessage {
1622                    role: match message.role {
1623                        Role::User => "user".into(),
1624                        Role::Assistant => "assistant".into(),
1625                        Role::System => "system".into(),
1626                    },
1627                    content: Some(
1628                        self.buffer
1629                            .read(cx)
1630                            .text_for_range(message.offset_range)
1631                            .collect(),
1632                    ),
1633                    name: None,
1634                    function_call: None,
1635                })
1636            })
1637            .collect::<Vec<_>>();
1638        let model = self.model.clone();
1639        self.pending_token_count = cx.spawn(|this, mut cx| {
1640            async move {
1641                cx.background_executor()
1642                    .timer(Duration::from_millis(200))
1643                    .await;
1644                let token_count = cx
1645                    .background_executor()
1646                    .spawn(async move {
1647                        tiktoken_rs::num_tokens_from_messages(&model.full_name(), &messages)
1648                    })
1649                    .await?;
1650
1651                this.update(&mut cx, |this, cx| {
1652                    this.max_token_count =
1653                        tiktoken_rs::model::get_context_size(&this.model.full_name());
1654                    this.token_count = Some(token_count);
1655                    cx.notify()
1656                })?;
1657                anyhow::Ok(())
1658            }
1659            .log_err()
1660        });
1661    }
1662
1663    fn remaining_tokens(&self) -> Option<isize> {
1664        Some(self.max_token_count as isize - self.token_count? as isize)
1665    }
1666
1667    fn set_model(&mut self, model: OpenAiModel, cx: &mut ModelContext<Self>) {
1668        self.model = model;
1669        self.count_remaining_tokens(cx);
1670        cx.notify();
1671    }
1672
1673    fn assist(
1674        &mut self,
1675        selected_messages: HashSet<MessageId>,
1676        cx: &mut ModelContext<Self>,
1677    ) -> Vec<MessageAnchor> {
1678        let mut user_messages = Vec::new();
1679
1680        let last_message_id = if let Some(last_message_id) =
1681            self.message_anchors.iter().rev().find_map(|message| {
1682                message
1683                    .start
1684                    .is_valid(self.buffer.read(cx))
1685                    .then_some(message.id)
1686            }) {
1687            last_message_id
1688        } else {
1689            return Default::default();
1690        };
1691
1692        let mut should_assist = false;
1693        for selected_message_id in selected_messages {
1694            let selected_message_role =
1695                if let Some(metadata) = self.messages_metadata.get(&selected_message_id) {
1696                    metadata.role
1697                } else {
1698                    continue;
1699                };
1700
1701            if selected_message_role == Role::Assistant {
1702                if let Some(user_message) = self.insert_message_after(
1703                    selected_message_id,
1704                    Role::User,
1705                    MessageStatus::Done,
1706                    cx,
1707                ) {
1708                    user_messages.push(user_message);
1709                }
1710            } else {
1711                should_assist = true;
1712            }
1713        }
1714
1715        if should_assist {
1716            if !self.completion_provider.has_credentials() {
1717                log::info!("completion provider has no credentials");
1718                return Default::default();
1719            }
1720
1721            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1722                model: self.model.full_name().to_string(),
1723                messages: self
1724                    .messages(cx)
1725                    .filter(|message| matches!(message.status, MessageStatus::Done))
1726                    .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1727                    .collect(),
1728                stream: true,
1729                stop: vec![],
1730                temperature: 1.0,
1731            });
1732
1733            let stream = self.completion_provider.complete(request);
1734            let assistant_message = self
1735                .insert_message_after(last_message_id, Role::Assistant, MessageStatus::Pending, cx)
1736                .unwrap();
1737
1738            // Queue up the user's next reply.
1739            let user_message = self
1740                .insert_message_after(assistant_message.id, Role::User, MessageStatus::Done, cx)
1741                .unwrap();
1742            user_messages.push(user_message);
1743
1744            let task = cx.spawn({
1745                |this, mut cx| async move {
1746                    let assistant_message_id = assistant_message.id;
1747                    let stream_completion = async {
1748                        let mut messages = stream.await?;
1749
1750                        while let Some(message) = messages.next().await {
1751                            let text = message?;
1752
1753                            this.update(&mut cx, |this, cx| {
1754                                let message_ix = this
1755                                    .message_anchors
1756                                    .iter()
1757                                    .position(|message| message.id == assistant_message_id)?;
1758                                this.buffer.update(cx, |buffer, cx| {
1759                                    let offset = this.message_anchors[message_ix + 1..]
1760                                        .iter()
1761                                        .find(|message| message.start.is_valid(buffer))
1762                                        .map_or(buffer.len(), |message| {
1763                                            message.start.to_offset(buffer).saturating_sub(1)
1764                                        });
1765                                    buffer.edit([(offset..offset, text)], None, cx);
1766                                });
1767                                cx.emit(ConversationEvent::StreamedCompletion);
1768
1769                                Some(())
1770                            })?;
1771                            smol::future::yield_now().await;
1772                        }
1773
1774                        this.update(&mut cx, |this, cx| {
1775                            this.pending_completions
1776                                .retain(|completion| completion.id != this.completion_count);
1777                            this.summarize(cx);
1778                        })?;
1779
1780                        anyhow::Ok(())
1781                    };
1782
1783                    let result = stream_completion.await;
1784
1785                    this.update(&mut cx, |this, cx| {
1786                        if let Some(metadata) =
1787                            this.messages_metadata.get_mut(&assistant_message.id)
1788                        {
1789                            match result {
1790                                Ok(_) => {
1791                                    metadata.status = MessageStatus::Done;
1792                                }
1793                                Err(error) => {
1794                                    metadata.status = MessageStatus::Error(SharedString::from(
1795                                        error.to_string().trim().to_string(),
1796                                    ));
1797                                }
1798                            }
1799                            cx.notify();
1800                        }
1801                    })
1802                    .ok();
1803                }
1804            });
1805
1806            self.pending_completions.push(PendingCompletion {
1807                id: post_inc(&mut self.completion_count),
1808                _task: task,
1809            });
1810        }
1811
1812        user_messages
1813    }
1814
1815    fn cancel_last_assist(&mut self) -> bool {
1816        self.pending_completions.pop().is_some()
1817    }
1818
1819    fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
1820        for id in ids {
1821            if let Some(metadata) = self.messages_metadata.get_mut(&id) {
1822                metadata.role.cycle();
1823                cx.emit(ConversationEvent::MessagesEdited);
1824                cx.notify();
1825            }
1826        }
1827    }
1828
1829    fn insert_message_after(
1830        &mut self,
1831        message_id: MessageId,
1832        role: Role,
1833        status: MessageStatus,
1834        cx: &mut ModelContext<Self>,
1835    ) -> Option<MessageAnchor> {
1836        if let Some(prev_message_ix) = self
1837            .message_anchors
1838            .iter()
1839            .position(|message| message.id == message_id)
1840        {
1841            // Find the next valid message after the one we were given.
1842            let mut next_message_ix = prev_message_ix + 1;
1843            while let Some(next_message) = self.message_anchors.get(next_message_ix) {
1844                if next_message.start.is_valid(self.buffer.read(cx)) {
1845                    break;
1846                }
1847                next_message_ix += 1;
1848            }
1849
1850            let start = self.buffer.update(cx, |buffer, cx| {
1851                let offset = self
1852                    .message_anchors
1853                    .get(next_message_ix)
1854                    .map_or(buffer.len(), |message| message.start.to_offset(buffer) - 1);
1855                buffer.edit([(offset..offset, "\n")], None, cx);
1856                buffer.anchor_before(offset + 1)
1857            });
1858            let message = MessageAnchor {
1859                id: MessageId(post_inc(&mut self.next_message_id.0)),
1860                start,
1861            };
1862            self.message_anchors
1863                .insert(next_message_ix, message.clone());
1864            self.messages_metadata.insert(
1865                message.id,
1866                MessageMetadata {
1867                    role,
1868                    sent_at: Local::now(),
1869                    status,
1870                },
1871            );
1872            cx.emit(ConversationEvent::MessagesEdited);
1873            Some(message)
1874        } else {
1875            None
1876        }
1877    }
1878
1879    fn split_message(
1880        &mut self,
1881        range: Range<usize>,
1882        cx: &mut ModelContext<Self>,
1883    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
1884        let start_message = self.message_for_offset(range.start, cx);
1885        let end_message = self.message_for_offset(range.end, cx);
1886        if let Some((start_message, end_message)) = start_message.zip(end_message) {
1887            // Prevent splitting when range spans multiple messages.
1888            if start_message.id != end_message.id {
1889                return (None, None);
1890            }
1891
1892            let message = start_message;
1893            let role = message.role;
1894            let mut edited_buffer = false;
1895
1896            let mut suffix_start = None;
1897            if range.start > message.offset_range.start && range.end < message.offset_range.end - 1
1898            {
1899                if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
1900                    suffix_start = Some(range.end + 1);
1901                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
1902                    suffix_start = Some(range.end);
1903                }
1904            }
1905
1906            let suffix = if let Some(suffix_start) = suffix_start {
1907                MessageAnchor {
1908                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1909                    start: self.buffer.read(cx).anchor_before(suffix_start),
1910                }
1911            } else {
1912                self.buffer.update(cx, |buffer, cx| {
1913                    buffer.edit([(range.end..range.end, "\n")], None, cx);
1914                });
1915                edited_buffer = true;
1916                MessageAnchor {
1917                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1918                    start: self.buffer.read(cx).anchor_before(range.end + 1),
1919                }
1920            };
1921
1922            self.message_anchors
1923                .insert(message.index_range.end + 1, suffix.clone());
1924            self.messages_metadata.insert(
1925                suffix.id,
1926                MessageMetadata {
1927                    role,
1928                    sent_at: Local::now(),
1929                    status: MessageStatus::Done,
1930                },
1931            );
1932
1933            let new_messages =
1934                if range.start == range.end || range.start == message.offset_range.start {
1935                    (None, Some(suffix))
1936                } else {
1937                    let mut prefix_end = None;
1938                    if range.start > message.offset_range.start
1939                        && range.end < message.offset_range.end - 1
1940                    {
1941                        if self.buffer.read(cx).chars_at(range.start).next() == Some('\n') {
1942                            prefix_end = Some(range.start + 1);
1943                        } else if self.buffer.read(cx).reversed_chars_at(range.start).next()
1944                            == Some('\n')
1945                        {
1946                            prefix_end = Some(range.start);
1947                        }
1948                    }
1949
1950                    let selection = if let Some(prefix_end) = prefix_end {
1951                        cx.emit(ConversationEvent::MessagesEdited);
1952                        MessageAnchor {
1953                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1954                            start: self.buffer.read(cx).anchor_before(prefix_end),
1955                        }
1956                    } else {
1957                        self.buffer.update(cx, |buffer, cx| {
1958                            buffer.edit([(range.start..range.start, "\n")], None, cx)
1959                        });
1960                        edited_buffer = true;
1961                        MessageAnchor {
1962                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1963                            start: self.buffer.read(cx).anchor_before(range.end + 1),
1964                        }
1965                    };
1966
1967                    self.message_anchors
1968                        .insert(message.index_range.end + 1, selection.clone());
1969                    self.messages_metadata.insert(
1970                        selection.id,
1971                        MessageMetadata {
1972                            role,
1973                            sent_at: Local::now(),
1974                            status: MessageStatus::Done,
1975                        },
1976                    );
1977                    (Some(selection), Some(suffix))
1978                };
1979
1980            if !edited_buffer {
1981                cx.emit(ConversationEvent::MessagesEdited);
1982            }
1983            new_messages
1984        } else {
1985            (None, None)
1986        }
1987    }
1988
1989    fn summarize(&mut self, cx: &mut ModelContext<Self>) {
1990        if self.message_anchors.len() >= 2 && self.summary.is_none() {
1991            if !self.completion_provider.has_credentials() {
1992                return;
1993            }
1994
1995            let messages = self
1996                .messages(cx)
1997                .take(2)
1998                .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1999                .chain(Some(RequestMessage {
2000                    role: Role::User,
2001                    content: "Summarize the conversation into a short title without punctuation"
2002                        .into(),
2003                }));
2004            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
2005                model: self.model.full_name().to_string(),
2006                messages: messages.collect(),
2007                stream: true,
2008                stop: vec![],
2009                temperature: 1.0,
2010            });
2011
2012            let stream = self.completion_provider.complete(request);
2013            self.pending_summary = cx.spawn(|this, mut cx| {
2014                async move {
2015                    let mut messages = stream.await?;
2016
2017                    while let Some(message) = messages.next().await {
2018                        let text = message?;
2019                        this.update(&mut cx, |this, cx| {
2020                            this.summary
2021                                .get_or_insert(Default::default())
2022                                .text
2023                                .push_str(&text);
2024                            cx.emit(ConversationEvent::SummaryChanged);
2025                        })?;
2026                    }
2027
2028                    this.update(&mut cx, |this, cx| {
2029                        if let Some(summary) = this.summary.as_mut() {
2030                            summary.done = true;
2031                            cx.emit(ConversationEvent::SummaryChanged);
2032                        }
2033                    })?;
2034
2035                    anyhow::Ok(())
2036                }
2037                .log_err()
2038            });
2039        }
2040    }
2041
2042    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
2043        self.messages_for_offsets([offset], cx).pop()
2044    }
2045
2046    fn messages_for_offsets(
2047        &self,
2048        offsets: impl IntoIterator<Item = usize>,
2049        cx: &AppContext,
2050    ) -> Vec<Message> {
2051        let mut result = Vec::new();
2052
2053        let mut messages = self.messages(cx).peekable();
2054        let mut offsets = offsets.into_iter().peekable();
2055        let mut current_message = messages.next();
2056        while let Some(offset) = offsets.next() {
2057            // Locate the message that contains the offset.
2058            while current_message.as_ref().map_or(false, |message| {
2059                !message.offset_range.contains(&offset) && messages.peek().is_some()
2060            }) {
2061                current_message = messages.next();
2062            }
2063            let Some(message) = current_message.as_ref() else {
2064                break;
2065            };
2066
2067            // Skip offsets that are in the same message.
2068            while offsets.peek().map_or(false, |offset| {
2069                message.offset_range.contains(offset) || messages.peek().is_none()
2070            }) {
2071                offsets.next();
2072            }
2073
2074            result.push(message.clone());
2075        }
2076        result
2077    }
2078
2079    fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
2080        let buffer = self.buffer.read(cx);
2081        let mut message_anchors = self.message_anchors.iter().enumerate().peekable();
2082        iter::from_fn(move || {
2083            while let Some((start_ix, message_anchor)) = message_anchors.next() {
2084                let metadata = self.messages_metadata.get(&message_anchor.id)?;
2085                let message_start = message_anchor.start.to_offset(buffer);
2086                let mut message_end = None;
2087                let mut end_ix = start_ix;
2088                while let Some((_, next_message)) = message_anchors.peek() {
2089                    if next_message.start.is_valid(buffer) {
2090                        message_end = Some(next_message.start);
2091                        break;
2092                    } else {
2093                        end_ix += 1;
2094                        message_anchors.next();
2095                    }
2096                }
2097                let message_end = message_end
2098                    .unwrap_or(language::Anchor::MAX)
2099                    .to_offset(buffer);
2100                return Some(Message {
2101                    index_range: start_ix..end_ix,
2102                    offset_range: message_start..message_end,
2103                    id: message_anchor.id,
2104                    anchor: message_anchor.start,
2105                    role: metadata.role,
2106                    sent_at: metadata.sent_at,
2107                    status: metadata.status.clone(),
2108                });
2109            }
2110            None
2111        })
2112    }
2113
2114    fn save(
2115        &mut self,
2116        debounce: Option<Duration>,
2117        fs: Arc<dyn Fs>,
2118        cx: &mut ModelContext<Conversation>,
2119    ) {
2120        self.pending_save = cx.spawn(|this, mut cx| async move {
2121            if let Some(debounce) = debounce {
2122                cx.background_executor().timer(debounce).await;
2123            }
2124
2125            let (old_path, summary) = this.read_with(&cx, |this, _| {
2126                let path = this.path.clone();
2127                let summary = if let Some(summary) = this.summary.as_ref() {
2128                    if summary.done {
2129                        Some(summary.text.clone())
2130                    } else {
2131                        None
2132                    }
2133                } else {
2134                    None
2135                };
2136                (path, summary)
2137            })?;
2138
2139            if let Some(summary) = summary {
2140                let conversation = this.read_with(&cx, |this, cx| this.serialize(cx))?;
2141                let path = if let Some(old_path) = old_path {
2142                    old_path
2143                } else {
2144                    let mut discriminant = 1;
2145                    let mut new_path;
2146                    loop {
2147                        new_path = CONVERSATIONS_DIR.join(&format!(
2148                            "{} - {}.zed.json",
2149                            summary.trim(),
2150                            discriminant
2151                        ));
2152                        if fs.is_file(&new_path).await {
2153                            discriminant += 1;
2154                        } else {
2155                            break;
2156                        }
2157                    }
2158                    new_path
2159                };
2160
2161                fs.create_dir(CONVERSATIONS_DIR.as_ref()).await?;
2162                fs.atomic_write(path.clone(), serde_json::to_string(&conversation).unwrap())
2163                    .await?;
2164                this.update(&mut cx, |this, _| this.path = Some(path))?;
2165            }
2166
2167            Ok(())
2168        });
2169    }
2170}
2171
2172struct PendingCompletion {
2173    id: usize,
2174    _task: Task<()>,
2175}
2176
2177enum ConversationEditorEvent {
2178    TabContentChanged,
2179}
2180
2181#[derive(Copy, Clone, Debug, PartialEq)]
2182struct ScrollPosition {
2183    offset_before_cursor: gpui::Point<f32>,
2184    cursor: Anchor,
2185}
2186
2187struct ConversationEditor {
2188    conversation: Model<Conversation>,
2189    fs: Arc<dyn Fs>,
2190    workspace: WeakView<Workspace>,
2191    editor: View<Editor>,
2192    blocks: HashSet<BlockId>,
2193    scroll_position: Option<ScrollPosition>,
2194    _subscriptions: Vec<Subscription>,
2195}
2196
2197impl ConversationEditor {
2198    fn new(
2199        completion_provider: Arc<dyn CompletionProvider>,
2200        language_registry: Arc<LanguageRegistry>,
2201        fs: Arc<dyn Fs>,
2202        workspace: WeakView<Workspace>,
2203        cx: &mut ViewContext<Self>,
2204    ) -> Self {
2205        let conversation =
2206            cx.new_model(|cx| Conversation::new(language_registry, cx, completion_provider));
2207        Self::for_conversation(conversation, fs, workspace, cx)
2208    }
2209
2210    fn for_conversation(
2211        conversation: Model<Conversation>,
2212        fs: Arc<dyn Fs>,
2213        workspace: WeakView<Workspace>,
2214        cx: &mut ViewContext<Self>,
2215    ) -> Self {
2216        let editor = cx.new_view(|cx| {
2217            let mut editor = Editor::for_buffer(conversation.read(cx).buffer.clone(), None, cx);
2218            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
2219            editor.set_show_gutter(false, cx);
2220            editor.set_show_wrap_guides(false, cx);
2221            editor
2222        });
2223
2224        let _subscriptions = vec![
2225            cx.observe(&conversation, |_, _, cx| cx.notify()),
2226            cx.subscribe(&conversation, Self::handle_conversation_event),
2227            cx.subscribe(&editor, Self::handle_editor_event),
2228        ];
2229
2230        let mut this = Self {
2231            conversation,
2232            editor,
2233            blocks: Default::default(),
2234            scroll_position: None,
2235            fs,
2236            workspace,
2237            _subscriptions,
2238        };
2239        this.update_message_headers(cx);
2240        this
2241    }
2242
2243    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
2244        report_assistant_event(
2245            self.workspace.clone(),
2246            self.conversation.read(cx).id.clone(),
2247            AssistantKind::Panel,
2248            cx,
2249        );
2250
2251        let cursors = self.cursors(cx);
2252
2253        let user_messages = self.conversation.update(cx, |conversation, cx| {
2254            let selected_messages = conversation
2255                .messages_for_offsets(cursors, cx)
2256                .into_iter()
2257                .map(|message| message.id)
2258                .collect();
2259            conversation.assist(selected_messages, cx)
2260        });
2261        let new_selections = user_messages
2262            .iter()
2263            .map(|message| {
2264                let cursor = message
2265                    .start
2266                    .to_offset(self.conversation.read(cx).buffer.read(cx));
2267                cursor..cursor
2268            })
2269            .collect::<Vec<_>>();
2270        if !new_selections.is_empty() {
2271            self.editor.update(cx, |editor, cx| {
2272                editor.change_selections(
2273                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
2274                    cx,
2275                    |selections| selections.select_ranges(new_selections),
2276                );
2277            });
2278            // Avoid scrolling to the new cursor position so the assistant's output is stable.
2279            cx.defer(|this, _| this.scroll_position = None);
2280        }
2281    }
2282
2283    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2284        if !self
2285            .conversation
2286            .update(cx, |conversation, _| conversation.cancel_last_assist())
2287        {
2288            cx.propagate();
2289        }
2290    }
2291
2292    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
2293        let cursors = self.cursors(cx);
2294        self.conversation.update(cx, |conversation, cx| {
2295            let messages = conversation
2296                .messages_for_offsets(cursors, cx)
2297                .into_iter()
2298                .map(|message| message.id)
2299                .collect();
2300            conversation.cycle_message_roles(messages, cx)
2301        });
2302    }
2303
2304    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
2305        let selections = self.editor.read(cx).selections.all::<usize>(cx);
2306        selections
2307            .into_iter()
2308            .map(|selection| selection.head())
2309            .collect()
2310    }
2311
2312    fn handle_conversation_event(
2313        &mut self,
2314        _: Model<Conversation>,
2315        event: &ConversationEvent,
2316        cx: &mut ViewContext<Self>,
2317    ) {
2318        match event {
2319            ConversationEvent::MessagesEdited => {
2320                self.update_message_headers(cx);
2321                self.conversation.update(cx, |conversation, cx| {
2322                    conversation.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
2323                });
2324            }
2325            ConversationEvent::SummaryChanged => {
2326                cx.emit(ConversationEditorEvent::TabContentChanged);
2327                self.conversation.update(cx, |conversation, cx| {
2328                    conversation.save(None, self.fs.clone(), cx);
2329                });
2330            }
2331            ConversationEvent::StreamedCompletion => {
2332                self.editor.update(cx, |editor, cx| {
2333                    if let Some(scroll_position) = self.scroll_position {
2334                        let snapshot = editor.snapshot(cx);
2335                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
2336                        let scroll_top =
2337                            cursor_point.row() as f32 - scroll_position.offset_before_cursor.y;
2338                        editor.set_scroll_position(
2339                            point(scroll_position.offset_before_cursor.x, scroll_top),
2340                            cx,
2341                        );
2342                    }
2343                });
2344            }
2345        }
2346    }
2347
2348    fn handle_editor_event(
2349        &mut self,
2350        _: View<Editor>,
2351        event: &EditorEvent,
2352        cx: &mut ViewContext<Self>,
2353    ) {
2354        match event {
2355            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
2356                let cursor_scroll_position = self.cursor_scroll_position(cx);
2357                if *autoscroll {
2358                    self.scroll_position = cursor_scroll_position;
2359                } else if self.scroll_position != cursor_scroll_position {
2360                    self.scroll_position = None;
2361                }
2362            }
2363            EditorEvent::SelectionsChanged { .. } => {
2364                self.scroll_position = self.cursor_scroll_position(cx);
2365            }
2366            _ => {}
2367        }
2368    }
2369
2370    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2371        self.editor.update(cx, |editor, cx| {
2372            let snapshot = editor.snapshot(cx);
2373            let cursor = editor.selections.newest_anchor().head();
2374            let cursor_row = cursor.to_display_point(&snapshot.display_snapshot).row() as f32;
2375            let scroll_position = editor
2376                .scroll_manager
2377                .anchor()
2378                .scroll_position(&snapshot.display_snapshot);
2379
2380            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2381            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2382                Some(ScrollPosition {
2383                    cursor,
2384                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2385                })
2386            } else {
2387                None
2388            }
2389        })
2390    }
2391
2392    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2393        self.editor.update(cx, |editor, cx| {
2394            let buffer = editor.buffer().read(cx).snapshot(cx);
2395            let excerpt_id = *buffer.as_singleton().unwrap().0;
2396            let old_blocks = std::mem::take(&mut self.blocks);
2397            let new_blocks = self
2398                .conversation
2399                .read(cx)
2400                .messages(cx)
2401                .map(|message| BlockProperties {
2402                    position: buffer.anchor_in_excerpt(excerpt_id, message.anchor),
2403                    height: 2,
2404                    style: BlockStyle::Sticky,
2405                    render: Arc::new({
2406                        let conversation = self.conversation.clone();
2407                        move |_cx| {
2408                            let message_id = message.id;
2409                            let sender = ButtonLike::new("role")
2410                                .style(ButtonStyle::Filled)
2411                                .child(match message.role {
2412                                    Role::User => Label::new("You").color(Color::Default),
2413                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2414                                    Role::System => Label::new("System").color(Color::Warning),
2415                                })
2416                                .tooltip(|cx| {
2417                                    Tooltip::with_meta(
2418                                        "Toggle message role",
2419                                        None,
2420                                        "Available roles: You (User), Assistant, System",
2421                                        cx,
2422                                    )
2423                                })
2424                                .on_click({
2425                                    let conversation = conversation.clone();
2426                                    move |_, cx| {
2427                                        conversation.update(cx, |conversation, cx| {
2428                                            conversation.cycle_message_roles(
2429                                                HashSet::from_iter(Some(message_id)),
2430                                                cx,
2431                                            )
2432                                        })
2433                                    }
2434                                });
2435
2436                            h_flex()
2437                                .id(("message_header", message_id.0))
2438                                .h_11()
2439                                .relative()
2440                                .gap_1()
2441                                .child(sender)
2442                                // TODO: Only show this if the message if the message has been sent
2443                                .child(
2444                                    Label::new(
2445                                        FormatDistance::from_now(DateTimeType::Local(
2446                                            message.sent_at,
2447                                        ))
2448                                        .hide_prefix(true)
2449                                        .add_suffix(true)
2450                                        .to_string(),
2451                                    )
2452                                    .size(LabelSize::XSmall)
2453                                    .color(Color::Muted),
2454                                )
2455                                .children(
2456                                    if let MessageStatus::Error(error) = message.status.clone() {
2457                                        Some(
2458                                            div()
2459                                                .id("error")
2460                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2461                                                .child(Icon::new(IconName::XCircle)),
2462                                        )
2463                                    } else {
2464                                        None
2465                                    },
2466                                )
2467                                .into_any_element()
2468                        }
2469                    }),
2470                    disposition: BlockDisposition::Above,
2471                })
2472                .collect::<Vec<_>>();
2473
2474            editor.remove_blocks(old_blocks, None, cx);
2475            let ids = editor.insert_blocks(new_blocks, None, cx);
2476            self.blocks = HashSet::from_iter(ids);
2477        });
2478    }
2479
2480    fn quote_selection(
2481        workspace: &mut Workspace,
2482        _: &QuoteSelection,
2483        cx: &mut ViewContext<Workspace>,
2484    ) {
2485        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2486            return;
2487        };
2488        let Some(editor) = workspace
2489            .active_item(cx)
2490            .and_then(|item| item.act_as::<Editor>(cx))
2491        else {
2492            return;
2493        };
2494
2495        let editor = editor.read(cx);
2496        let range = editor.selections.newest::<usize>(cx).range();
2497        let buffer = editor.buffer().read(cx).snapshot(cx);
2498        let start_language = buffer.language_at(range.start);
2499        let end_language = buffer.language_at(range.end);
2500        let language_name = if start_language == end_language {
2501            start_language.map(|language| language.name())
2502        } else {
2503            None
2504        };
2505        let language_name = language_name.as_deref().unwrap_or("").to_lowercase();
2506
2507        let selected_text = buffer.text_for_range(range).collect::<String>();
2508        let text = if selected_text.is_empty() {
2509            None
2510        } else {
2511            Some(if language_name == "markdown" {
2512                selected_text
2513                    .lines()
2514                    .map(|line| format!("> {}", line))
2515                    .collect::<Vec<_>>()
2516                    .join("\n")
2517            } else {
2518                format!("```{language_name}\n{selected_text}\n```")
2519            })
2520        };
2521
2522        // Activate the panel
2523        if !panel.focus_handle(cx).contains_focused(cx) {
2524            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2525        }
2526
2527        if let Some(text) = text {
2528            panel.update(cx, |panel, cx| {
2529                let conversation = panel
2530                    .active_editor()
2531                    .cloned()
2532                    .unwrap_or_else(|| panel.new_conversation(cx));
2533                conversation.update(cx, |conversation, cx| {
2534                    conversation
2535                        .editor
2536                        .update(cx, |editor, cx| editor.insert(&text, cx))
2537                });
2538            });
2539        }
2540    }
2541
2542    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2543        let editor = self.editor.read(cx);
2544        let conversation = self.conversation.read(cx);
2545        if editor.selections.count() == 1 {
2546            let selection = editor.selections.newest::<usize>(cx);
2547            let mut copied_text = String::new();
2548            let mut spanned_messages = 0;
2549            for message in conversation.messages(cx) {
2550                if message.offset_range.start >= selection.range().end {
2551                    break;
2552                } else if message.offset_range.end >= selection.range().start {
2553                    let range = cmp::max(message.offset_range.start, selection.range().start)
2554                        ..cmp::min(message.offset_range.end, selection.range().end);
2555                    if !range.is_empty() {
2556                        spanned_messages += 1;
2557                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2558                        for chunk in conversation.buffer.read(cx).text_for_range(range) {
2559                            copied_text.push_str(&chunk);
2560                        }
2561                        copied_text.push('\n');
2562                    }
2563                }
2564            }
2565
2566            if spanned_messages > 1 {
2567                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2568                return;
2569            }
2570        }
2571
2572        cx.propagate();
2573    }
2574
2575    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2576        self.conversation.update(cx, |conversation, cx| {
2577            let selections = self.editor.read(cx).selections.disjoint_anchors();
2578            for selection in selections.into_iter() {
2579                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2580                let range = selection
2581                    .map(|endpoint| endpoint.to_offset(&buffer))
2582                    .range();
2583                conversation.split_message(range, cx);
2584            }
2585        });
2586    }
2587
2588    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2589        self.conversation.update(cx, |conversation, cx| {
2590            conversation.save(None, self.fs.clone(), cx)
2591        });
2592    }
2593
2594    fn cycle_model(&mut self, cx: &mut ViewContext<Self>) {
2595        self.conversation.update(cx, |conversation, cx| {
2596            let new_model = conversation.model.cycle();
2597            conversation.set_model(new_model, cx);
2598        });
2599    }
2600
2601    fn title(&self, cx: &AppContext) -> String {
2602        self.conversation
2603            .read(cx)
2604            .summary
2605            .as_ref()
2606            .map(|summary| summary.text.clone())
2607            .unwrap_or_else(|| "New Conversation".into())
2608    }
2609
2610    fn render_current_model(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2611        Button::new(
2612            "current_model",
2613            self.conversation.read(cx).model.short_name(),
2614        )
2615        .style(ButtonStyle::Filled)
2616        .tooltip(move |cx| Tooltip::text("Change Model", cx))
2617        .on_click(cx.listener(|this, _, cx| this.cycle_model(cx)))
2618    }
2619
2620    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2621        let remaining_tokens = self.conversation.read(cx).remaining_tokens()?;
2622        let remaining_tokens_color = if remaining_tokens <= 0 {
2623            Color::Error
2624        } else if remaining_tokens <= 500 {
2625            Color::Warning
2626        } else {
2627            Color::Default
2628        };
2629        Some(Label::new(remaining_tokens.to_string()).color(remaining_tokens_color))
2630    }
2631}
2632
2633impl EventEmitter<ConversationEditorEvent> for ConversationEditor {}
2634
2635impl Render for ConversationEditor {
2636    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2637        div()
2638            .key_context("ConversationEditor")
2639            .capture_action(cx.listener(ConversationEditor::cancel_last_assist))
2640            .capture_action(cx.listener(ConversationEditor::save))
2641            .capture_action(cx.listener(ConversationEditor::copy))
2642            .capture_action(cx.listener(ConversationEditor::cycle_message_role))
2643            .on_action(cx.listener(ConversationEditor::assist))
2644            .on_action(cx.listener(ConversationEditor::split))
2645            .size_full()
2646            .relative()
2647            .child(
2648                div()
2649                    .size_full()
2650                    .pl_4()
2651                    .bg(cx.theme().colors().editor_background)
2652                    .child(self.editor.clone()),
2653            )
2654            .child(
2655                h_flex()
2656                    .absolute()
2657                    .gap_1()
2658                    .top_3()
2659                    .right_5()
2660                    .child(self.render_current_model(cx))
2661                    .children(self.render_remaining_tokens(cx)),
2662            )
2663    }
2664}
2665
2666impl FocusableView for ConversationEditor {
2667    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2668        self.editor.focus_handle(cx)
2669    }
2670}
2671
2672#[derive(Clone, Debug)]
2673struct MessageAnchor {
2674    id: MessageId,
2675    start: language::Anchor,
2676}
2677
2678#[derive(Clone, Debug)]
2679pub struct Message {
2680    offset_range: Range<usize>,
2681    index_range: Range<usize>,
2682    id: MessageId,
2683    anchor: language::Anchor,
2684    role: Role,
2685    sent_at: DateTime<Local>,
2686    status: MessageStatus,
2687}
2688
2689impl Message {
2690    fn to_open_ai_message(&self, buffer: &Buffer) -> RequestMessage {
2691        let content = buffer
2692            .text_for_range(self.offset_range.clone())
2693            .collect::<String>();
2694        RequestMessage {
2695            role: self.role,
2696            content: content.trim_end().into(),
2697        }
2698    }
2699}
2700
2701enum InlineAssistantEvent {
2702    Confirmed {
2703        prompt: String,
2704        include_conversation: bool,
2705        retrieve_context: bool,
2706    },
2707    Canceled,
2708    Dismissed,
2709    IncludeConversationToggled {
2710        include_conversation: bool,
2711    },
2712    RetrieveContextToggled {
2713        retrieve_context: bool,
2714    },
2715}
2716
2717struct InlineAssistant {
2718    id: usize,
2719    prompt_editor: View<Editor>,
2720    workspace: WeakView<Workspace>,
2721    confirmed: bool,
2722    include_conversation: bool,
2723    measurements: Rc<Cell<BlockMeasurements>>,
2724    prompt_history: VecDeque<String>,
2725    prompt_history_ix: Option<usize>,
2726    pending_prompt: String,
2727    codegen: Model<Codegen>,
2728    _subscriptions: Vec<Subscription>,
2729    retrieve_context: bool,
2730    semantic_index: Option<Model<SemanticIndex>>,
2731    semantic_permissioned: Option<bool>,
2732    project: WeakModel<Project>,
2733    maintain_rate_limit: Option<Task<()>>,
2734}
2735
2736impl EventEmitter<InlineAssistantEvent> for InlineAssistant {}
2737
2738impl Render for InlineAssistant {
2739    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2740        let measurements = self.measurements.get();
2741        h_flex()
2742            .w_full()
2743            .py_2()
2744            .border_y_1()
2745            .border_color(cx.theme().colors().border)
2746            .on_action(cx.listener(Self::confirm))
2747            .on_action(cx.listener(Self::cancel))
2748            .on_action(cx.listener(Self::toggle_include_conversation))
2749            .on_action(cx.listener(Self::toggle_retrieve_context))
2750            .on_action(cx.listener(Self::move_up))
2751            .on_action(cx.listener(Self::move_down))
2752            .child(
2753                h_flex()
2754                    .justify_center()
2755                    .w(measurements.gutter_width)
2756                    .child(
2757                        IconButton::new("include_conversation", IconName::Ai)
2758                            .on_click(cx.listener(|this, _, cx| {
2759                                this.toggle_include_conversation(&ToggleIncludeConversation, cx)
2760                            }))
2761                            .selected(self.include_conversation)
2762                            .tooltip(|cx| {
2763                                Tooltip::for_action(
2764                                    "Include Conversation",
2765                                    &ToggleIncludeConversation,
2766                                    cx,
2767                                )
2768                            }),
2769                    )
2770                    .children(if SemanticIndex::enabled(cx) {
2771                        Some(
2772                            IconButton::new("retrieve_context", IconName::MagnifyingGlass)
2773                                .on_click(cx.listener(|this, _, cx| {
2774                                    this.toggle_retrieve_context(&ToggleRetrieveContext, cx)
2775                                }))
2776                                .selected(self.retrieve_context)
2777                                .tooltip(|cx| {
2778                                    Tooltip::for_action(
2779                                        "Retrieve Context",
2780                                        &ToggleRetrieveContext,
2781                                        cx,
2782                                    )
2783                                }),
2784                        )
2785                    } else {
2786                        None
2787                    })
2788                    .children(if let Some(error) = self.codegen.read(cx).error() {
2789                        let error_message = SharedString::from(error.to_string());
2790                        Some(
2791                            div()
2792                                .id("error")
2793                                .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
2794                                .child(Icon::new(IconName::XCircle).color(Color::Error)),
2795                        )
2796                    } else {
2797                        None
2798                    }),
2799            )
2800            .child(
2801                h_flex()
2802                    .w_full()
2803                    .ml(measurements.anchor_x - measurements.gutter_width)
2804                    .child(self.render_prompt_editor(cx)),
2805            )
2806            .children(if self.retrieve_context {
2807                self.retrieve_context_status(cx)
2808            } else {
2809                None
2810            })
2811    }
2812}
2813
2814impl FocusableView for InlineAssistant {
2815    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2816        self.prompt_editor.focus_handle(cx)
2817    }
2818}
2819
2820impl InlineAssistant {
2821    fn new(
2822        id: usize,
2823        measurements: Rc<Cell<BlockMeasurements>>,
2824        include_conversation: bool,
2825        prompt_history: VecDeque<String>,
2826        codegen: Model<Codegen>,
2827        workspace: WeakView<Workspace>,
2828        cx: &mut ViewContext<Self>,
2829        retrieve_context: bool,
2830        semantic_index: Option<Model<SemanticIndex>>,
2831        project: Model<Project>,
2832    ) -> Self {
2833        let prompt_editor = cx.new_view(|cx| {
2834            let mut editor = Editor::single_line(cx);
2835            let placeholder = match codegen.read(cx).kind() {
2836                CodegenKind::Transform { .. } => "Enter transformation prompt…",
2837                CodegenKind::Generate { .. } => "Enter generation prompt…",
2838            };
2839            editor.set_placeholder_text(placeholder, cx);
2840            editor
2841        });
2842        cx.focus_view(&prompt_editor);
2843
2844        let mut subscriptions = vec![
2845            cx.observe(&codegen, Self::handle_codegen_changed),
2846            cx.subscribe(&prompt_editor, Self::handle_prompt_editor_events),
2847        ];
2848
2849        if let Some(semantic_index) = semantic_index.clone() {
2850            subscriptions.push(cx.observe(&semantic_index, Self::semantic_index_changed));
2851        }
2852
2853        let assistant = Self {
2854            id,
2855            prompt_editor,
2856            workspace,
2857            confirmed: false,
2858            include_conversation,
2859            measurements,
2860            prompt_history,
2861            prompt_history_ix: None,
2862            pending_prompt: String::new(),
2863            codegen,
2864            _subscriptions: subscriptions,
2865            retrieve_context,
2866            semantic_permissioned: None,
2867            semantic_index,
2868            project: project.downgrade(),
2869            maintain_rate_limit: None,
2870        };
2871
2872        assistant.index_project(cx).log_err();
2873
2874        assistant
2875    }
2876
2877    fn semantic_permissioned(&self, cx: &mut ViewContext<Self>) -> Task<Result<bool>> {
2878        if let Some(value) = self.semantic_permissioned {
2879            return Task::ready(Ok(value));
2880        }
2881
2882        let Some(project) = self.project.upgrade() else {
2883            return Task::ready(Err(anyhow!("project was dropped")));
2884        };
2885
2886        self.semantic_index
2887            .as_ref()
2888            .map(|semantic| {
2889                semantic.update(cx, |this, cx| this.project_previously_indexed(&project, cx))
2890            })
2891            .unwrap_or(Task::ready(Ok(false)))
2892    }
2893
2894    fn handle_prompt_editor_events(
2895        &mut self,
2896        _: View<Editor>,
2897        event: &EditorEvent,
2898        cx: &mut ViewContext<Self>,
2899    ) {
2900        if let EditorEvent::Edited = event {
2901            self.pending_prompt = self.prompt_editor.read(cx).text(cx);
2902            cx.notify();
2903        }
2904    }
2905
2906    fn semantic_index_changed(
2907        &mut self,
2908        semantic_index: Model<SemanticIndex>,
2909        cx: &mut ViewContext<Self>,
2910    ) {
2911        let Some(project) = self.project.upgrade() else {
2912            return;
2913        };
2914
2915        let status = semantic_index.read(cx).status(&project);
2916        match status {
2917            SemanticIndexStatus::Indexing {
2918                rate_limit_expiry: Some(_),
2919                ..
2920            } => {
2921                if self.maintain_rate_limit.is_none() {
2922                    self.maintain_rate_limit = Some(cx.spawn(|this, mut cx| async move {
2923                        loop {
2924                            cx.background_executor().timer(Duration::from_secs(1)).await;
2925                            this.update(&mut cx, |_, cx| cx.notify()).log_err();
2926                        }
2927                    }));
2928                }
2929                return;
2930            }
2931            _ => {
2932                self.maintain_rate_limit = None;
2933            }
2934        }
2935    }
2936
2937    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
2938        let is_read_only = !self.codegen.read(cx).idle();
2939        self.prompt_editor.update(cx, |editor, cx| {
2940            let was_read_only = editor.read_only(cx);
2941            if was_read_only != is_read_only {
2942                if is_read_only {
2943                    editor.set_read_only(true);
2944                } else {
2945                    self.confirmed = false;
2946                    editor.set_read_only(false);
2947                }
2948            }
2949        });
2950        cx.notify();
2951    }
2952
2953    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2954        cx.emit(InlineAssistantEvent::Canceled);
2955    }
2956
2957    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
2958        if self.confirmed {
2959            cx.emit(InlineAssistantEvent::Dismissed);
2960        } else {
2961            report_assistant_event(self.workspace.clone(), None, AssistantKind::Inline, cx);
2962
2963            let prompt = self.prompt_editor.read(cx).text(cx);
2964            self.prompt_editor
2965                .update(cx, |editor, _cx| editor.set_read_only(true));
2966            cx.emit(InlineAssistantEvent::Confirmed {
2967                prompt,
2968                include_conversation: self.include_conversation,
2969                retrieve_context: self.retrieve_context,
2970            });
2971            self.confirmed = true;
2972            cx.notify();
2973        }
2974    }
2975
2976    fn toggle_retrieve_context(&mut self, _: &ToggleRetrieveContext, cx: &mut ViewContext<Self>) {
2977        let semantic_permissioned = self.semantic_permissioned(cx);
2978
2979        let Some(project) = self.project.upgrade() else {
2980            return;
2981        };
2982
2983        let project_name = project
2984            .read(cx)
2985            .worktree_root_names(cx)
2986            .collect::<Vec<&str>>()
2987            .join("/");
2988        let is_plural = project_name.chars().filter(|letter| *letter == '/').count() > 0;
2989        let prompt_text = format!("Would you like to index the '{}' project{} for context retrieval? This requires sending code to the OpenAI API", project_name,
2990            if is_plural {
2991                "s"
2992            } else {""});
2993
2994        cx.spawn(|this, mut cx| async move {
2995            // If Necessary prompt user
2996            if !semantic_permissioned.await.unwrap_or(false) {
2997                let answer = this.update(&mut cx, |_, cx| {
2998                    cx.prompt(
2999                        PromptLevel::Info,
3000                        prompt_text.as_str(),
3001                        None,
3002                        &["Continue", "Cancel"],
3003                    )
3004                })?;
3005
3006                if answer.await? == 0 {
3007                    this.update(&mut cx, |this, _| {
3008                        this.semantic_permissioned = Some(true);
3009                    })?;
3010                } else {
3011                    return anyhow::Ok(());
3012                }
3013            }
3014
3015            // If permissioned, update context appropriately
3016            this.update(&mut cx, |this, cx| {
3017                this.retrieve_context = !this.retrieve_context;
3018
3019                cx.emit(InlineAssistantEvent::RetrieveContextToggled {
3020                    retrieve_context: this.retrieve_context,
3021                });
3022
3023                if this.retrieve_context {
3024                    this.index_project(cx).log_err();
3025                }
3026
3027                cx.notify();
3028            })?;
3029
3030            anyhow::Ok(())
3031        })
3032        .detach_and_log_err(cx);
3033    }
3034
3035    fn index_project(&self, cx: &mut ViewContext<Self>) -> anyhow::Result<()> {
3036        let Some(project) = self.project.upgrade() else {
3037            return Err(anyhow!("project was dropped!"));
3038        };
3039
3040        let semantic_permissioned = self.semantic_permissioned(cx);
3041        if let Some(semantic_index) = SemanticIndex::global(cx) {
3042            cx.spawn(|_, mut cx| async move {
3043                // This has to be updated to accommodate for semantic_permissions
3044                if semantic_permissioned.await.unwrap_or(false) {
3045                    semantic_index
3046                        .update(&mut cx, |index, cx| index.index_project(project, cx))?
3047                        .await
3048                } else {
3049                    Err(anyhow!("project is not permissioned for semantic indexing"))
3050                }
3051            })
3052            .detach_and_log_err(cx);
3053        }
3054
3055        anyhow::Ok(())
3056    }
3057
3058    fn retrieve_context_status(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
3059        let Some(project) = self.project.upgrade() else {
3060            return None;
3061        };
3062
3063        let semantic_index = SemanticIndex::global(cx)?;
3064        let status = semantic_index.update(cx, |index, _| index.status(&project));
3065        match status {
3066            SemanticIndexStatus::NotAuthenticated {} => Some(
3067                div()
3068                    .id("error")
3069                    .tooltip(|cx| Tooltip::text("Not Authenticated. Please ensure you have a valid 'OPENAI_API_KEY' in your environment variables.", cx))
3070                    .child(Icon::new(IconName::XCircle))
3071                    .into_any_element()
3072            ),
3073
3074            SemanticIndexStatus::NotIndexed {} => Some(
3075                div()
3076                    .id("error")
3077                    .tooltip(|cx| Tooltip::text("Not Indexed", cx))
3078                    .child(Icon::new(IconName::XCircle))
3079                    .into_any_element()
3080            ),
3081
3082            SemanticIndexStatus::Indexing {
3083                remaining_files,
3084                rate_limit_expiry,
3085            } => {
3086                let mut status_text = if remaining_files == 0 {
3087                    "Indexing...".to_string()
3088                } else {
3089                    format!("Remaining files to index: {remaining_files}")
3090                };
3091
3092                if let Some(rate_limit_expiry) = rate_limit_expiry {
3093                    let remaining_seconds = rate_limit_expiry.duration_since(Instant::now());
3094                    if remaining_seconds > Duration::from_secs(0) && remaining_files > 0 {
3095                        write!(
3096                            status_text,
3097                            " (rate limit expires in {}s)",
3098                            remaining_seconds.as_secs()
3099                        )
3100                        .unwrap();
3101                    }
3102                }
3103
3104                let status_text = SharedString::from(status_text);
3105                Some(
3106                    div()
3107                        .id("update")
3108                        .tooltip(move |cx| Tooltip::text(status_text.clone(), cx))
3109                        .child(Icon::new(IconName::Update).color(Color::Info))
3110                        .into_any_element()
3111                )
3112            }
3113
3114            SemanticIndexStatus::Indexed {} => Some(
3115                div()
3116                    .id("check")
3117                    .tooltip(|cx| Tooltip::text("Index up to date", cx))
3118                    .child(Icon::new(IconName::Check).color(Color::Success))
3119                    .into_any_element()
3120            ),
3121        }
3122    }
3123
3124    fn toggle_include_conversation(
3125        &mut self,
3126        _: &ToggleIncludeConversation,
3127        cx: &mut ViewContext<Self>,
3128    ) {
3129        self.include_conversation = !self.include_conversation;
3130        cx.emit(InlineAssistantEvent::IncludeConversationToggled {
3131            include_conversation: self.include_conversation,
3132        });
3133        cx.notify();
3134    }
3135
3136    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3137        if let Some(ix) = self.prompt_history_ix {
3138            if ix > 0 {
3139                self.prompt_history_ix = Some(ix - 1);
3140                let prompt = self.prompt_history[ix - 1].clone();
3141                self.set_prompt(&prompt, cx);
3142            }
3143        } else if !self.prompt_history.is_empty() {
3144            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
3145            let prompt = self.prompt_history[self.prompt_history.len() - 1].clone();
3146            self.set_prompt(&prompt, cx);
3147        }
3148    }
3149
3150    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3151        if let Some(ix) = self.prompt_history_ix {
3152            if ix < self.prompt_history.len() - 1 {
3153                self.prompt_history_ix = Some(ix + 1);
3154                let prompt = self.prompt_history[ix + 1].clone();
3155                self.set_prompt(&prompt, cx);
3156            } else {
3157                self.prompt_history_ix = None;
3158                let pending_prompt = self.pending_prompt.clone();
3159                self.set_prompt(&pending_prompt, cx);
3160            }
3161        }
3162    }
3163
3164    fn set_prompt(&mut self, prompt: &str, cx: &mut ViewContext<Self>) {
3165        self.prompt_editor.update(cx, |editor, cx| {
3166            editor.buffer().update(cx, |buffer, cx| {
3167                let len = buffer.len(cx);
3168                buffer.edit([(0..len, prompt)], None, cx);
3169            });
3170        });
3171    }
3172
3173    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3174        let settings = ThemeSettings::get_global(cx);
3175        let text_style = TextStyle {
3176            color: if self.prompt_editor.read(cx).read_only(cx) {
3177                cx.theme().colors().text_disabled
3178            } else {
3179                cx.theme().colors().text
3180            },
3181            font_family: settings.ui_font.family.clone(),
3182            font_features: settings.ui_font.features,
3183            font_size: rems(0.875).into(),
3184            font_weight: FontWeight::NORMAL,
3185            font_style: FontStyle::Normal,
3186            line_height: relative(1.3).into(),
3187            background_color: None,
3188            underline: None,
3189            strikethrough: None,
3190            white_space: WhiteSpace::Normal,
3191        };
3192        EditorElement::new(
3193            &self.prompt_editor,
3194            EditorStyle {
3195                background: cx.theme().colors().editor_background,
3196                local_player: cx.theme().players().local(),
3197                text: text_style,
3198                ..Default::default()
3199            },
3200        )
3201    }
3202}
3203
3204// This wouldn't need to exist if we could pass parameters when rendering child views.
3205#[derive(Copy, Clone, Default)]
3206struct BlockMeasurements {
3207    anchor_x: Pixels,
3208    gutter_width: Pixels,
3209}
3210
3211struct PendingInlineAssist {
3212    editor: WeakView<Editor>,
3213    inline_assistant: Option<(BlockId, View<InlineAssistant>)>,
3214    codegen: Model<Codegen>,
3215    _subscriptions: Vec<Subscription>,
3216    project: WeakModel<Project>,
3217}
3218
3219fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3220    ranges.sort_unstable_by(|a, b| {
3221        a.start
3222            .cmp(&b.start, buffer)
3223            .then_with(|| b.end.cmp(&a.end, buffer))
3224    });
3225
3226    let mut ix = 0;
3227    while ix + 1 < ranges.len() {
3228        let b = ranges[ix + 1].clone();
3229        let a = &mut ranges[ix];
3230        if a.end.cmp(&b.start, buffer).is_gt() {
3231            if a.end.cmp(&b.end, buffer).is_lt() {
3232                a.end = b.end;
3233            }
3234            ranges.remove(ix + 1);
3235        } else {
3236            ix += 1;
3237        }
3238    }
3239}
3240
3241#[cfg(test)]
3242mod tests {
3243    use super::*;
3244    use crate::MessageId;
3245    use ai::test::FakeCompletionProvider;
3246    use gpui::{AppContext, TestAppContext};
3247    use settings::SettingsStore;
3248
3249    #[gpui::test]
3250    fn test_inserting_and_removing_messages(cx: &mut AppContext) {
3251        let settings_store = SettingsStore::test(cx);
3252        cx.set_global(settings_store);
3253        init(cx);
3254        let registry = Arc::new(LanguageRegistry::test());
3255
3256        let completion_provider = Arc::new(FakeCompletionProvider::new());
3257        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3258        let buffer = conversation.read(cx).buffer.clone();
3259
3260        let message_1 = conversation.read(cx).message_anchors[0].clone();
3261        assert_eq!(
3262            messages(&conversation, cx),
3263            vec![(message_1.id, Role::User, 0..0)]
3264        );
3265
3266        let message_2 = conversation.update(cx, |conversation, cx| {
3267            conversation
3268                .insert_message_after(message_1.id, Role::Assistant, MessageStatus::Done, cx)
3269                .unwrap()
3270        });
3271        assert_eq!(
3272            messages(&conversation, cx),
3273            vec![
3274                (message_1.id, Role::User, 0..1),
3275                (message_2.id, Role::Assistant, 1..1)
3276            ]
3277        );
3278
3279        buffer.update(cx, |buffer, cx| {
3280            buffer.edit([(0..0, "1"), (1..1, "2")], None, cx)
3281        });
3282        assert_eq!(
3283            messages(&conversation, cx),
3284            vec![
3285                (message_1.id, Role::User, 0..2),
3286                (message_2.id, Role::Assistant, 2..3)
3287            ]
3288        );
3289
3290        let message_3 = conversation.update(cx, |conversation, cx| {
3291            conversation
3292                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3293                .unwrap()
3294        });
3295        assert_eq!(
3296            messages(&conversation, cx),
3297            vec![
3298                (message_1.id, Role::User, 0..2),
3299                (message_2.id, Role::Assistant, 2..4),
3300                (message_3.id, Role::User, 4..4)
3301            ]
3302        );
3303
3304        let message_4 = conversation.update(cx, |conversation, cx| {
3305            conversation
3306                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3307                .unwrap()
3308        });
3309        assert_eq!(
3310            messages(&conversation, cx),
3311            vec![
3312                (message_1.id, Role::User, 0..2),
3313                (message_2.id, Role::Assistant, 2..4),
3314                (message_4.id, Role::User, 4..5),
3315                (message_3.id, Role::User, 5..5),
3316            ]
3317        );
3318
3319        buffer.update(cx, |buffer, cx| {
3320            buffer.edit([(4..4, "C"), (5..5, "D")], None, cx)
3321        });
3322        assert_eq!(
3323            messages(&conversation, cx),
3324            vec![
3325                (message_1.id, Role::User, 0..2),
3326                (message_2.id, Role::Assistant, 2..4),
3327                (message_4.id, Role::User, 4..6),
3328                (message_3.id, Role::User, 6..7),
3329            ]
3330        );
3331
3332        // Deleting across message boundaries merges the messages.
3333        buffer.update(cx, |buffer, cx| buffer.edit([(1..4, "")], None, cx));
3334        assert_eq!(
3335            messages(&conversation, cx),
3336            vec![
3337                (message_1.id, Role::User, 0..3),
3338                (message_3.id, Role::User, 3..4),
3339            ]
3340        );
3341
3342        // Undoing the deletion should also undo the merge.
3343        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3344        assert_eq!(
3345            messages(&conversation, cx),
3346            vec![
3347                (message_1.id, Role::User, 0..2),
3348                (message_2.id, Role::Assistant, 2..4),
3349                (message_4.id, Role::User, 4..6),
3350                (message_3.id, Role::User, 6..7),
3351            ]
3352        );
3353
3354        // Redoing the deletion should also redo the merge.
3355        buffer.update(cx, |buffer, cx| buffer.redo(cx));
3356        assert_eq!(
3357            messages(&conversation, cx),
3358            vec![
3359                (message_1.id, Role::User, 0..3),
3360                (message_3.id, Role::User, 3..4),
3361            ]
3362        );
3363
3364        // Ensure we can still insert after a merged message.
3365        let message_5 = conversation.update(cx, |conversation, cx| {
3366            conversation
3367                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3368                .unwrap()
3369        });
3370        assert_eq!(
3371            messages(&conversation, cx),
3372            vec![
3373                (message_1.id, Role::User, 0..3),
3374                (message_5.id, Role::System, 3..4),
3375                (message_3.id, Role::User, 4..5)
3376            ]
3377        );
3378    }
3379
3380    #[gpui::test]
3381    fn test_message_splitting(cx: &mut AppContext) {
3382        let settings_store = SettingsStore::test(cx);
3383        cx.set_global(settings_store);
3384        init(cx);
3385        let registry = Arc::new(LanguageRegistry::test());
3386        let completion_provider = Arc::new(FakeCompletionProvider::new());
3387
3388        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3389        let buffer = conversation.read(cx).buffer.clone();
3390
3391        let message_1 = conversation.read(cx).message_anchors[0].clone();
3392        assert_eq!(
3393            messages(&conversation, cx),
3394            vec![(message_1.id, Role::User, 0..0)]
3395        );
3396
3397        buffer.update(cx, |buffer, cx| {
3398            buffer.edit([(0..0, "aaa\nbbb\nccc\nddd\n")], None, cx)
3399        });
3400
3401        let (_, message_2) =
3402            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3403        let message_2 = message_2.unwrap();
3404
3405        // We recycle newlines in the middle of a split message
3406        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\nddd\n");
3407        assert_eq!(
3408            messages(&conversation, cx),
3409            vec![
3410                (message_1.id, Role::User, 0..4),
3411                (message_2.id, Role::User, 4..16),
3412            ]
3413        );
3414
3415        let (_, message_3) =
3416            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3417        let message_3 = message_3.unwrap();
3418
3419        // We don't recycle newlines at the end of a split message
3420        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3421        assert_eq!(
3422            messages(&conversation, cx),
3423            vec![
3424                (message_1.id, Role::User, 0..4),
3425                (message_3.id, Role::User, 4..5),
3426                (message_2.id, Role::User, 5..17),
3427            ]
3428        );
3429
3430        let (_, message_4) =
3431            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3432        let message_4 = message_4.unwrap();
3433        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3434        assert_eq!(
3435            messages(&conversation, cx),
3436            vec![
3437                (message_1.id, Role::User, 0..4),
3438                (message_3.id, Role::User, 4..5),
3439                (message_2.id, Role::User, 5..9),
3440                (message_4.id, Role::User, 9..17),
3441            ]
3442        );
3443
3444        let (_, message_5) =
3445            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3446        let message_5 = message_5.unwrap();
3447        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\nddd\n");
3448        assert_eq!(
3449            messages(&conversation, cx),
3450            vec![
3451                (message_1.id, Role::User, 0..4),
3452                (message_3.id, Role::User, 4..5),
3453                (message_2.id, Role::User, 5..9),
3454                (message_4.id, Role::User, 9..10),
3455                (message_5.id, Role::User, 10..18),
3456            ]
3457        );
3458
3459        let (message_6, message_7) = conversation.update(cx, |conversation, cx| {
3460            conversation.split_message(14..16, cx)
3461        });
3462        let message_6 = message_6.unwrap();
3463        let message_7 = message_7.unwrap();
3464        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\ndd\nd\n");
3465        assert_eq!(
3466            messages(&conversation, cx),
3467            vec![
3468                (message_1.id, Role::User, 0..4),
3469                (message_3.id, Role::User, 4..5),
3470                (message_2.id, Role::User, 5..9),
3471                (message_4.id, Role::User, 9..10),
3472                (message_5.id, Role::User, 10..14),
3473                (message_6.id, Role::User, 14..17),
3474                (message_7.id, Role::User, 17..19),
3475            ]
3476        );
3477    }
3478
3479    #[gpui::test]
3480    fn test_messages_for_offsets(cx: &mut AppContext) {
3481        let settings_store = SettingsStore::test(cx);
3482        cx.set_global(settings_store);
3483        init(cx);
3484        let registry = Arc::new(LanguageRegistry::test());
3485        let completion_provider = Arc::new(FakeCompletionProvider::new());
3486        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3487        let buffer = conversation.read(cx).buffer.clone();
3488
3489        let message_1 = conversation.read(cx).message_anchors[0].clone();
3490        assert_eq!(
3491            messages(&conversation, cx),
3492            vec![(message_1.id, Role::User, 0..0)]
3493        );
3494
3495        buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "aaa")], None, cx));
3496        let message_2 = conversation
3497            .update(cx, |conversation, cx| {
3498                conversation.insert_message_after(message_1.id, Role::User, MessageStatus::Done, cx)
3499            })
3500            .unwrap();
3501        buffer.update(cx, |buffer, cx| buffer.edit([(4..4, "bbb")], None, cx));
3502
3503        let message_3 = conversation
3504            .update(cx, |conversation, cx| {
3505                conversation.insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3506            })
3507            .unwrap();
3508        buffer.update(cx, |buffer, cx| buffer.edit([(8..8, "ccc")], None, cx));
3509
3510        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc");
3511        assert_eq!(
3512            messages(&conversation, cx),
3513            vec![
3514                (message_1.id, Role::User, 0..4),
3515                (message_2.id, Role::User, 4..8),
3516                (message_3.id, Role::User, 8..11)
3517            ]
3518        );
3519
3520        assert_eq!(
3521            message_ids_for_offsets(&conversation, &[0, 4, 9], cx),
3522            [message_1.id, message_2.id, message_3.id]
3523        );
3524        assert_eq!(
3525            message_ids_for_offsets(&conversation, &[0, 1, 11], cx),
3526            [message_1.id, message_3.id]
3527        );
3528
3529        let message_4 = conversation
3530            .update(cx, |conversation, cx| {
3531                conversation.insert_message_after(message_3.id, Role::User, MessageStatus::Done, cx)
3532            })
3533            .unwrap();
3534        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\n");
3535        assert_eq!(
3536            messages(&conversation, cx),
3537            vec![
3538                (message_1.id, Role::User, 0..4),
3539                (message_2.id, Role::User, 4..8),
3540                (message_3.id, Role::User, 8..12),
3541                (message_4.id, Role::User, 12..12)
3542            ]
3543        );
3544        assert_eq!(
3545            message_ids_for_offsets(&conversation, &[0, 4, 8, 12], cx),
3546            [message_1.id, message_2.id, message_3.id, message_4.id]
3547        );
3548
3549        fn message_ids_for_offsets(
3550            conversation: &Model<Conversation>,
3551            offsets: &[usize],
3552            cx: &AppContext,
3553        ) -> Vec<MessageId> {
3554            conversation
3555                .read(cx)
3556                .messages_for_offsets(offsets.iter().copied(), cx)
3557                .into_iter()
3558                .map(|message| message.id)
3559                .collect()
3560        }
3561    }
3562
3563    #[gpui::test]
3564    async fn test_serialization(cx: &mut TestAppContext) {
3565        let settings_store = cx.update(SettingsStore::test);
3566        cx.set_global(settings_store);
3567        cx.update(init);
3568        let registry = Arc::new(LanguageRegistry::test());
3569        let completion_provider = Arc::new(FakeCompletionProvider::new());
3570        let conversation =
3571            cx.new_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
3572        let buffer = conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3573        let message_0 =
3574            conversation.read_with(cx, |conversation, _| conversation.message_anchors[0].id);
3575        let message_1 = conversation.update(cx, |conversation, cx| {
3576            conversation
3577                .insert_message_after(message_0, Role::Assistant, MessageStatus::Done, cx)
3578                .unwrap()
3579        });
3580        let message_2 = conversation.update(cx, |conversation, cx| {
3581            conversation
3582                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3583                .unwrap()
3584        });
3585        buffer.update(cx, |buffer, cx| {
3586            buffer.edit([(0..0, "a"), (1..1, "b\nc")], None, cx);
3587            buffer.finalize_last_transaction();
3588        });
3589        let _message_3 = conversation.update(cx, |conversation, cx| {
3590            conversation
3591                .insert_message_after(message_2.id, Role::System, MessageStatus::Done, cx)
3592                .unwrap()
3593        });
3594        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3595        assert_eq!(buffer.read_with(cx, |buffer, _| buffer.text()), "a\nb\nc\n");
3596        assert_eq!(
3597            cx.read(|cx| messages(&conversation, cx)),
3598            [
3599                (message_0, Role::User, 0..2),
3600                (message_1.id, Role::Assistant, 2..6),
3601                (message_2.id, Role::System, 6..6),
3602            ]
3603        );
3604
3605        let deserialized_conversation = Conversation::deserialize(
3606            conversation.read_with(cx, |conversation, cx| conversation.serialize(cx)),
3607            Default::default(),
3608            registry.clone(),
3609            &mut cx.to_async(),
3610        )
3611        .await
3612        .unwrap();
3613        let deserialized_buffer =
3614            deserialized_conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3615        assert_eq!(
3616            deserialized_buffer.read_with(cx, |buffer, _| buffer.text()),
3617            "a\nb\nc\n"
3618        );
3619        assert_eq!(
3620            cx.read(|cx| messages(&deserialized_conversation, cx)),
3621            [
3622                (message_0, Role::User, 0..2),
3623                (message_1.id, Role::Assistant, 2..6),
3624                (message_2.id, Role::System, 6..6),
3625            ]
3626        );
3627    }
3628
3629    fn messages(
3630        conversation: &Model<Conversation>,
3631        cx: &AppContext,
3632    ) -> Vec<(MessageId, Role, Range<usize>)> {
3633        conversation
3634            .read(cx)
3635            .messages(cx)
3636            .map(|message| (message.id, message.role, message.offset_range))
3637            .collect()
3638    }
3639}
3640
3641fn report_assistant_event(
3642    workspace: WeakView<Workspace>,
3643    conversation_id: Option<String>,
3644    assistant_kind: AssistantKind,
3645    cx: &AppContext,
3646) {
3647    let Some(workspace) = workspace.upgrade() else {
3648        return;
3649    };
3650
3651    let client = workspace.read(cx).project().read(cx).client();
3652    let telemetry = client.telemetry();
3653
3654    let model = AssistantSettings::get_global(cx)
3655        .default_open_ai_model
3656        .clone();
3657
3658    telemetry.report_assistant_event(conversation_id, assistant_kind, model.full_name())
3659}