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::{
  11    auth::ProviderCredential,
  12    completion::{CompletionProvider, CompletionRequest},
  13    providers::open_ai::{OpenAiCompletionProvider, OpenAiRequest, RequestMessage},
  14};
  15use anyhow::{anyhow, Result};
  16use chrono::{DateTime, Local};
  17use client::telemetry::AssistantKind;
  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 theme::ThemeSettings;
  55use ui::{
  56    prelude::*,
  57    utils::{DateTimeType, FormatDistance},
  58    ButtonLike, Tab, TabBar, Tooltip,
  59};
  60use util::{paths::CONVERSATIONS_DIR, post_inc, ResultExt, TryFutureExt};
  61use uuid::Uuid;
  62use workspace::{
  63    dock::{DockPosition, Panel, PanelEvent},
  64    searchable::Direction,
  65    Save, Toast, ToggleZoom, Toolbar, Workspace,
  66};
  67
  68pub fn init(cx: &mut AppContext) {
  69    AssistantSettings::register(cx);
  70    cx.observe_new_views(
  71        |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
  72            workspace
  73                .register_action(|workspace, _: &ToggleFocus, cx| {
  74                    workspace.toggle_panel_focus::<AssistantPanel>(cx);
  75                })
  76                .register_action(AssistantPanel::inline_assist)
  77                .register_action(AssistantPanel::cancel_last_inline_assist)
  78                .register_action(ConversationEditor::quote_selection);
  79        },
  80    )
  81    .detach();
  82}
  83
  84pub struct AssistantPanel {
  85    workspace: WeakView<Workspace>,
  86    width: Option<Pixels>,
  87    height: Option<Pixels>,
  88    active_editor_index: Option<usize>,
  89    prev_active_editor_index: Option<usize>,
  90    editors: Vec<View<ConversationEditor>>,
  91    saved_conversations: Vec<SavedConversationMetadata>,
  92    saved_conversations_scroll_handle: UniformListScrollHandle,
  93    zoomed: bool,
  94    focus_handle: FocusHandle,
  95    toolbar: View<Toolbar>,
  96    completion_provider: Arc<dyn CompletionProvider>,
  97    api_key_editor: Option<View<Editor>>,
  98    languages: Arc<LanguageRegistry>,
  99    fs: Arc<dyn Fs>,
 100    subscriptions: Vec<Subscription>,
 101    next_inline_assist_id: usize,
 102    pending_inline_assists: HashMap<usize, PendingInlineAssist>,
 103    pending_inline_assist_ids_by_editor: HashMap<WeakView<Editor>, Vec<usize>>,
 104    include_conversation_in_next_inline_assist: bool,
 105    inline_prompt_history: VecDeque<String>,
 106    _watch_saved_conversations: Task<Result<()>>,
 107    semantic_index: Option<Model<SemanticIndex>>,
 108    retrieve_context_in_next_inline_assist: bool,
 109}
 110
 111impl AssistantPanel {
 112    const INLINE_PROMPT_HISTORY_MAX_LEN: usize = 20;
 113
 114    pub fn load(
 115        workspace: WeakView<Workspace>,
 116        cx: AsyncWindowContext,
 117    ) -> Task<Result<View<Self>>> {
 118        cx.spawn(|mut cx| async move {
 119            let fs = workspace.update(&mut cx, |workspace, _| workspace.app_state().fs.clone())?;
 120            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 121                .await
 122                .log_err()
 123                .unwrap_or_default();
 124            // Defaulting currently to GPT4, allow for this to be set via config.
 125            let completion_provider =
 126                OpenAiCompletionProvider::new("gpt-4".into(), cx.background_executor().clone())
 127                    .await;
 128
 129            // TODO: deserialize state.
 130            let workspace_handle = workspace.clone();
 131            workspace.update(&mut cx, |workspace, cx| {
 132                cx.new_view::<Self>(|cx| {
 133                    const CONVERSATION_WATCH_DURATION: Duration = Duration::from_millis(100);
 134                    let _watch_saved_conversations = cx.spawn(move |this, mut cx| async move {
 135                        let mut events = fs
 136                            .watch(&CONVERSATIONS_DIR, CONVERSATION_WATCH_DURATION)
 137                            .await;
 138                        while events.next().await.is_some() {
 139                            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 140                                .await
 141                                .log_err()
 142                                .unwrap_or_default();
 143                            this.update(&mut cx, |this, cx| {
 144                                this.saved_conversations = saved_conversations;
 145                                cx.notify();
 146                            })
 147                            .ok();
 148                        }
 149
 150                        anyhow::Ok(())
 151                    });
 152
 153                    let toolbar = cx.new_view(|cx| {
 154                        let mut toolbar = Toolbar::new();
 155                        toolbar.set_can_navigate(false, cx);
 156                        toolbar.add_item(cx.new_view(|cx| BufferSearchBar::new(cx)), cx);
 157                        toolbar
 158                    });
 159
 160                    let semantic_index = SemanticIndex::global(cx);
 161
 162                    let focus_handle = cx.focus_handle();
 163                    cx.on_focus_in(&focus_handle, Self::focus_in).detach();
 164                    cx.on_focus_out(&focus_handle, Self::focus_out).detach();
 165
 166                    Self {
 167                        workspace: workspace_handle,
 168                        active_editor_index: Default::default(),
 169                        prev_active_editor_index: Default::default(),
 170                        editors: Default::default(),
 171                        saved_conversations,
 172                        saved_conversations_scroll_handle: Default::default(),
 173                        zoomed: false,
 174                        focus_handle,
 175                        toolbar,
 176                        completion_provider: Arc::new(completion_provider),
 177                        api_key_editor: None,
 178                        languages: workspace.app_state().languages.clone(),
 179                        fs: workspace.app_state().fs.clone(),
 180                        width: None,
 181                        height: None,
 182                        subscriptions: Default::default(),
 183                        next_inline_assist_id: 0,
 184                        pending_inline_assists: Default::default(),
 185                        pending_inline_assist_ids_by_editor: Default::default(),
 186                        include_conversation_in_next_inline_assist: false,
 187                        inline_prompt_history: Default::default(),
 188                        _watch_saved_conversations,
 189                        semantic_index,
 190                        retrieve_context_in_next_inline_assist: false,
 191                    }
 192                })
 193            })
 194        })
 195    }
 196
 197    fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
 198        self.toolbar
 199            .update(cx, |toolbar, cx| toolbar.focus_changed(true, cx));
 200        cx.notify();
 201        if self.focus_handle.is_focused(cx) {
 202            if let Some(editor) = self.active_editor() {
 203                cx.focus_view(editor);
 204            } else if let Some(api_key_editor) = self.api_key_editor.as_ref() {
 205                cx.focus_view(api_key_editor);
 206            }
 207        }
 208    }
 209
 210    fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
 211        self.toolbar
 212            .update(cx, |toolbar, cx| toolbar.focus_changed(false, cx));
 213        cx.notify();
 214    }
 215
 216    pub fn inline_assist(
 217        workspace: &mut Workspace,
 218        _: &InlineAssist,
 219        cx: &mut ViewContext<Workspace>,
 220    ) {
 221        let Some(assistant) = workspace.panel::<AssistantPanel>(cx) else {
 222            return;
 223        };
 224        let active_editor = if let Some(active_editor) = workspace
 225            .active_item(cx)
 226            .and_then(|item| item.act_as::<Editor>(cx))
 227        {
 228            active_editor
 229        } else {
 230            return;
 231        };
 232        let project = workspace.project().clone();
 233
 234        if assistant.update(cx, |assistant, _| assistant.has_credentials()) {
 235            assistant.update(cx, |assistant, cx| {
 236                assistant.new_inline_assist(&active_editor, cx, &project)
 237            });
 238        } else {
 239            let assistant = assistant.downgrade();
 240            cx.spawn(|workspace, mut cx| async move {
 241                assistant
 242                    .update(&mut cx, |assistant, cx| assistant.load_credentials(cx))?
 243                    .await;
 244                if assistant.update(&mut cx, |assistant, _| assistant.has_credentials())? {
 245                    assistant.update(&mut cx, |assistant, cx| {
 246                        assistant.new_inline_assist(&active_editor, cx, &project)
 247                    })?;
 248                } else {
 249                    workspace.update(&mut cx, |workspace, cx| {
 250                        workspace.focus_panel::<AssistantPanel>(cx)
 251                    })?;
 252                }
 253
 254                anyhow::Ok(())
 255            })
 256            .detach_and_log_err(cx)
 257        }
 258    }
 259
 260    fn new_inline_assist(
 261        &mut self,
 262        editor: &View<Editor>,
 263        cx: &mut ViewContext<Self>,
 264        project: &Model<Project>,
 265    ) {
 266        let selection = editor.read(cx).selections.newest_anchor().clone();
 267        if selection.start.excerpt_id != selection.end.excerpt_id {
 268            return;
 269        }
 270        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 271
 272        // Extend the selection to the start and the end of the line.
 273        let mut point_selection = selection.map(|selection| selection.to_point(&snapshot));
 274        if point_selection.end > point_selection.start {
 275            point_selection.start.column = 0;
 276            // If the selection ends at the start of the line, we don't want to include it.
 277            if point_selection.end.column == 0 {
 278                point_selection.end.row -= 1;
 279            }
 280            point_selection.end.column = snapshot.line_len(point_selection.end.row);
 281        }
 282
 283        let codegen_kind = if point_selection.start == point_selection.end {
 284            CodegenKind::Generate {
 285                position: snapshot.anchor_after(point_selection.start),
 286            }
 287        } else {
 288            CodegenKind::Transform {
 289                range: snapshot.anchor_before(point_selection.start)
 290                    ..snapshot.anchor_after(point_selection.end),
 291            }
 292        };
 293
 294        let inline_assist_id = post_inc(&mut self.next_inline_assist_id);
 295        let provider = self.completion_provider.clone();
 296
 297        let codegen = cx.new_model(|cx| {
 298            Codegen::new(editor.read(cx).buffer().clone(), codegen_kind, provider, cx)
 299        });
 300
 301        if let Some(semantic_index) = self.semantic_index.clone() {
 302            let project = project.clone();
 303            cx.spawn(|_, mut cx| async move {
 304                let previously_indexed = semantic_index
 305                    .update(&mut cx, |index, cx| {
 306                        index.project_previously_indexed(&project, cx)
 307                    })?
 308                    .await
 309                    .unwrap_or(false);
 310                if previously_indexed {
 311                    let _ = semantic_index
 312                        .update(&mut cx, |index, cx| {
 313                            index.index_project(project.clone(), cx)
 314                        })?
 315                        .await;
 316                }
 317                anyhow::Ok(())
 318            })
 319            .detach_and_log_err(cx);
 320        }
 321
 322        let measurements = Rc::new(Cell::new(BlockMeasurements::default()));
 323        let inline_assistant = cx.new_view(|cx| {
 324            InlineAssistant::new(
 325                inline_assist_id,
 326                measurements.clone(),
 327                self.include_conversation_in_next_inline_assist,
 328                self.inline_prompt_history.clone(),
 329                codegen.clone(),
 330                self.workspace.clone(),
 331                cx,
 332                self.retrieve_context_in_next_inline_assist,
 333                self.semantic_index.clone(),
 334                project.clone(),
 335            )
 336        });
 337        let block_id = editor.update(cx, |editor, cx| {
 338            editor.change_selections(None, cx, |selections| {
 339                selections.select_anchor_ranges([selection.head()..selection.head()])
 340            });
 341            editor.insert_blocks(
 342                [BlockProperties {
 343                    style: BlockStyle::Flex,
 344                    position: snapshot.anchor_before(point_selection.head()),
 345                    height: 2,
 346                    render: Arc::new({
 347                        let inline_assistant = inline_assistant.clone();
 348                        move |cx: &mut BlockContext| {
 349                            measurements.set(BlockMeasurements {
 350                                anchor_x: cx.anchor_x,
 351                                gutter_width: cx.gutter_width,
 352                            });
 353                            inline_assistant.clone().into_any_element()
 354                        }
 355                    }),
 356                    disposition: if selection.reversed {
 357                        BlockDisposition::Above
 358                    } else {
 359                        BlockDisposition::Below
 360                    },
 361                }],
 362                Some(Autoscroll::Strategy(AutoscrollStrategy::Newest)),
 363                cx,
 364            )[0]
 365        });
 366
 367        self.pending_inline_assists.insert(
 368            inline_assist_id,
 369            PendingInlineAssist {
 370                editor: editor.downgrade(),
 371                inline_assistant: Some((block_id, inline_assistant.clone())),
 372                codegen: codegen.clone(),
 373                project: project.downgrade(),
 374                _subscriptions: vec![
 375                    cx.subscribe(&inline_assistant, Self::handle_inline_assistant_event),
 376                    cx.subscribe(editor, {
 377                        let inline_assistant = inline_assistant.downgrade();
 378                        move |_, editor, event, cx| {
 379                            if let Some(inline_assistant) = inline_assistant.upgrade() {
 380                                if let EditorEvent::SelectionsChanged { local } = event {
 381                                    if *local
 382                                        && inline_assistant.focus_handle(cx).contains_focused(cx)
 383                                    {
 384                                        cx.focus_view(&editor);
 385                                    }
 386                                }
 387                            }
 388                        }
 389                    }),
 390                    cx.observe(&codegen, {
 391                        let editor = editor.downgrade();
 392                        move |this, _, cx| {
 393                            if let Some(editor) = editor.upgrade() {
 394                                this.update_highlights_for_editor(&editor, cx);
 395                            }
 396                        }
 397                    }),
 398                    cx.subscribe(&codegen, move |this, codegen, event, cx| match event {
 399                        codegen::Event::Undone => {
 400                            this.finish_inline_assist(inline_assist_id, false, cx)
 401                        }
 402                        codegen::Event::Finished => {
 403                            let pending_assist = if let Some(pending_assist) =
 404                                this.pending_inline_assists.get(&inline_assist_id)
 405                            {
 406                                pending_assist
 407                            } else {
 408                                return;
 409                            };
 410
 411                            let error = codegen
 412                                .read(cx)
 413                                .error()
 414                                .map(|error| format!("Inline assistant error: {}", error));
 415                            if let Some(error) = error {
 416                                if pending_assist.inline_assistant.is_none() {
 417                                    if let Some(workspace) = this.workspace.upgrade() {
 418                                        workspace.update(cx, |workspace, cx| {
 419                                            workspace.show_toast(
 420                                                Toast::new(inline_assist_id, error),
 421                                                cx,
 422                                            );
 423                                        })
 424                                    }
 425
 426                                    this.finish_inline_assist(inline_assist_id, false, cx);
 427                                }
 428                            } else {
 429                                this.finish_inline_assist(inline_assist_id, false, cx);
 430                            }
 431                        }
 432                    }),
 433                ],
 434            },
 435        );
 436        self.pending_inline_assist_ids_by_editor
 437            .entry(editor.downgrade())
 438            .or_default()
 439            .push(inline_assist_id);
 440        self.update_highlights_for_editor(&editor, cx);
 441    }
 442
 443    fn handle_inline_assistant_event(
 444        &mut self,
 445        inline_assistant: View<InlineAssistant>,
 446        event: &InlineAssistantEvent,
 447        cx: &mut ViewContext<Self>,
 448    ) {
 449        let assist_id = inline_assistant.read(cx).id;
 450        match event {
 451            InlineAssistantEvent::Confirmed {
 452                prompt,
 453                include_conversation,
 454                retrieve_context,
 455            } => {
 456                self.confirm_inline_assist(
 457                    assist_id,
 458                    prompt,
 459                    *include_conversation,
 460                    cx,
 461                    *retrieve_context,
 462                );
 463            }
 464            InlineAssistantEvent::Canceled => {
 465                self.finish_inline_assist(assist_id, true, cx);
 466            }
 467            InlineAssistantEvent::Dismissed => {
 468                self.hide_inline_assist(assist_id, cx);
 469            }
 470            InlineAssistantEvent::IncludeConversationToggled {
 471                include_conversation,
 472            } => {
 473                self.include_conversation_in_next_inline_assist = *include_conversation;
 474            }
 475            InlineAssistantEvent::RetrieveContextToggled { retrieve_context } => {
 476                self.retrieve_context_in_next_inline_assist = *retrieve_context
 477            }
 478        }
 479    }
 480
 481    fn cancel_last_inline_assist(
 482        workspace: &mut Workspace,
 483        _: &editor::actions::Cancel,
 484        cx: &mut ViewContext<Workspace>,
 485    ) {
 486        if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 487            if let Some(editor) = workspace
 488                .active_item(cx)
 489                .and_then(|item| item.downcast::<Editor>())
 490            {
 491                let handled = panel.update(cx, |panel, cx| {
 492                    if let Some(assist_id) = panel
 493                        .pending_inline_assist_ids_by_editor
 494                        .get(&editor.downgrade())
 495                        .and_then(|assist_ids| assist_ids.last().copied())
 496                    {
 497                        panel.finish_inline_assist(assist_id, true, cx);
 498                        true
 499                    } else {
 500                        false
 501                    }
 502                });
 503                if handled {
 504                    return;
 505                }
 506            }
 507        }
 508
 509        cx.propagate();
 510    }
 511
 512    fn finish_inline_assist(&mut self, assist_id: usize, undo: bool, cx: &mut ViewContext<Self>) {
 513        self.hide_inline_assist(assist_id, cx);
 514
 515        if let Some(pending_assist) = self.pending_inline_assists.remove(&assist_id) {
 516            if let hash_map::Entry::Occupied(mut entry) = self
 517                .pending_inline_assist_ids_by_editor
 518                .entry(pending_assist.editor.clone())
 519            {
 520                entry.get_mut().retain(|id| *id != assist_id);
 521                if entry.get().is_empty() {
 522                    entry.remove();
 523                }
 524            }
 525
 526            if let Some(editor) = pending_assist.editor.upgrade() {
 527                self.update_highlights_for_editor(&editor, cx);
 528
 529                if undo {
 530                    pending_assist
 531                        .codegen
 532                        .update(cx, |codegen, cx| codegen.undo(cx));
 533                }
 534            }
 535        }
 536    }
 537
 538    fn hide_inline_assist(&mut self, assist_id: usize, cx: &mut ViewContext<Self>) {
 539        if let Some(pending_assist) = self.pending_inline_assists.get_mut(&assist_id) {
 540            if let Some(editor) = pending_assist.editor.upgrade() {
 541                if let Some((block_id, inline_assistant)) = pending_assist.inline_assistant.take() {
 542                    editor.update(cx, |editor, cx| {
 543                        editor.remove_blocks(HashSet::from_iter([block_id]), None, cx);
 544                        if inline_assistant.focus_handle(cx).contains_focused(cx) {
 545                            editor.focus(cx);
 546                        }
 547                    });
 548                }
 549            }
 550        }
 551    }
 552
 553    fn confirm_inline_assist(
 554        &mut self,
 555        inline_assist_id: usize,
 556        user_prompt: &str,
 557        include_conversation: bool,
 558        cx: &mut ViewContext<Self>,
 559        retrieve_context: bool,
 560    ) {
 561        let conversation = if include_conversation {
 562            self.active_editor()
 563                .map(|editor| editor.read(cx).conversation.clone())
 564        } else {
 565            None
 566        };
 567
 568        let pending_assist =
 569            if let Some(pending_assist) = self.pending_inline_assists.get_mut(&inline_assist_id) {
 570                pending_assist
 571            } else {
 572                return;
 573            };
 574
 575        let editor = if let Some(editor) = pending_assist.editor.upgrade() {
 576            editor
 577        } else {
 578            return;
 579        };
 580
 581        let project = pending_assist.project.clone();
 582
 583        let project_name = if let Some(project) = project.upgrade() {
 584            Some(
 585                project
 586                    .read(cx)
 587                    .worktree_root_names(cx)
 588                    .collect::<Vec<&str>>()
 589                    .join("/"),
 590            )
 591        } else {
 592            None
 593        };
 594
 595        self.inline_prompt_history
 596            .retain(|prompt| prompt != user_prompt);
 597        self.inline_prompt_history.push_back(user_prompt.into());
 598        if self.inline_prompt_history.len() > Self::INLINE_PROMPT_HISTORY_MAX_LEN {
 599            self.inline_prompt_history.pop_front();
 600        }
 601
 602        let codegen = pending_assist.codegen.clone();
 603        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 604        let range = codegen.read(cx).range();
 605        let start = snapshot.point_to_buffer_offset(range.start);
 606        let end = snapshot.point_to_buffer_offset(range.end);
 607        let (buffer, range) = if let Some((start, end)) = start.zip(end) {
 608            let (start_buffer, start_buffer_offset) = start;
 609            let (end_buffer, end_buffer_offset) = end;
 610            if start_buffer.remote_id() == end_buffer.remote_id() {
 611                (start_buffer.clone(), start_buffer_offset..end_buffer_offset)
 612            } else {
 613                self.finish_inline_assist(inline_assist_id, false, cx);
 614                return;
 615            }
 616        } else {
 617            self.finish_inline_assist(inline_assist_id, false, cx);
 618            return;
 619        };
 620
 621        let language = buffer.language_at(range.start);
 622        let language_name = if let Some(language) = language.as_ref() {
 623            if Arc::ptr_eq(language, &language::PLAIN_TEXT) {
 624                None
 625            } else {
 626                Some(language.name())
 627            }
 628        } else {
 629            None
 630        };
 631
 632        // Higher Temperature increases the randomness of model outputs.
 633        // If Markdown or No Language is Known, increase the randomness for more creative output
 634        // If Code, decrease temperature to get more deterministic outputs
 635        let temperature = if let Some(language) = language_name.clone() {
 636            if language.to_string() != "Markdown".to_string() {
 637                0.5
 638            } else {
 639                1.0
 640            }
 641        } else {
 642            1.0
 643        };
 644
 645        let user_prompt = user_prompt.to_string();
 646
 647        let snippets = if retrieve_context {
 648            let Some(project) = project.upgrade() else {
 649                return;
 650            };
 651
 652            let search_results = if let Some(semantic_index) = self.semantic_index.clone() {
 653                let search_results = semantic_index.update(cx, |this, cx| {
 654                    this.search_project(project, user_prompt.to_string(), 10, vec![], vec![], cx)
 655                });
 656
 657                cx.background_executor()
 658                    .spawn(async move { search_results.await.unwrap_or_default() })
 659            } else {
 660                Task::ready(Vec::new())
 661            };
 662
 663            let snippets = cx.spawn(|_, mut cx| async move {
 664                let mut snippets = Vec::new();
 665                for result in search_results.await {
 666                    snippets.push(PromptCodeSnippet::new(
 667                        result.buffer,
 668                        result.range,
 669                        &mut cx,
 670                    )?);
 671                }
 672                anyhow::Ok(snippets)
 673            });
 674            snippets
 675        } else {
 676            Task::ready(Ok(Vec::new()))
 677        };
 678
 679        let mut model = AssistantSettings::get_global(cx)
 680            .default_open_ai_model
 681            .clone();
 682        let model_name = model.full_name();
 683
 684        let prompt = cx.background_executor().spawn(async move {
 685            let snippets = snippets.await?;
 686
 687            let language_name = language_name.as_deref();
 688            generate_content_prompt(
 689                user_prompt,
 690                language_name,
 691                buffer,
 692                range,
 693                snippets,
 694                model_name,
 695                project_name,
 696            )
 697        });
 698
 699        let mut messages = Vec::new();
 700        if let Some(conversation) = conversation {
 701            let conversation = conversation.read(cx);
 702            let buffer = conversation.buffer.read(cx);
 703            messages.extend(
 704                conversation
 705                    .messages(cx)
 706                    .map(|message| message.to_open_ai_message(buffer)),
 707            );
 708            model = conversation.model.clone();
 709        }
 710
 711        cx.spawn(|_, mut cx| async move {
 712            // I Don't know if we want to return a ? here.
 713            let prompt = prompt.await?;
 714
 715            messages.push(RequestMessage {
 716                role: Role::User,
 717                content: prompt,
 718            });
 719
 720            let request = Box::new(OpenAiRequest {
 721                model: model.full_name().into(),
 722                messages,
 723                stream: true,
 724                stop: vec!["|END|>".to_string()],
 725                temperature,
 726            });
 727
 728            codegen.update(&mut cx, |codegen, cx| codegen.start(request, cx))?;
 729            anyhow::Ok(())
 730        })
 731        .detach();
 732    }
 733
 734    fn update_highlights_for_editor(&self, editor: &View<Editor>, cx: &mut ViewContext<Self>) {
 735        let mut background_ranges = Vec::new();
 736        let mut foreground_ranges = Vec::new();
 737        let empty_inline_assist_ids = Vec::new();
 738        let inline_assist_ids = self
 739            .pending_inline_assist_ids_by_editor
 740            .get(&editor.downgrade())
 741            .unwrap_or(&empty_inline_assist_ids);
 742
 743        for inline_assist_id in inline_assist_ids {
 744            if let Some(pending_assist) = self.pending_inline_assists.get(inline_assist_id) {
 745                let codegen = pending_assist.codegen.read(cx);
 746                background_ranges.push(codegen.range());
 747                foreground_ranges.extend(codegen.last_equal_ranges().iter().cloned());
 748            }
 749        }
 750
 751        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 752        merge_ranges(&mut background_ranges, &snapshot);
 753        merge_ranges(&mut foreground_ranges, &snapshot);
 754        editor.update(cx, |editor, cx| {
 755            if background_ranges.is_empty() {
 756                editor.clear_background_highlights::<PendingInlineAssist>(cx);
 757            } else {
 758                editor.highlight_background::<PendingInlineAssist>(
 759                    background_ranges,
 760                    |theme| theme.editor_active_line_background, // todo!("use the appropriate color")
 761                    cx,
 762                );
 763            }
 764
 765            if foreground_ranges.is_empty() {
 766                editor.clear_highlights::<PendingInlineAssist>(cx);
 767            } else {
 768                editor.highlight_text::<PendingInlineAssist>(
 769                    foreground_ranges,
 770                    HighlightStyle {
 771                        fade_out: Some(0.6),
 772                        ..Default::default()
 773                    },
 774                    cx,
 775                );
 776            }
 777        });
 778    }
 779
 780    fn new_conversation(&mut self, cx: &mut ViewContext<Self>) -> View<ConversationEditor> {
 781        let editor = cx.new_view(|cx| {
 782            ConversationEditor::new(
 783                self.completion_provider.clone(),
 784                self.languages.clone(),
 785                self.fs.clone(),
 786                self.workspace.clone(),
 787                cx,
 788            )
 789        });
 790        self.add_conversation(editor.clone(), cx);
 791        editor
 792    }
 793
 794    fn add_conversation(&mut self, editor: View<ConversationEditor>, cx: &mut ViewContext<Self>) {
 795        self.subscriptions
 796            .push(cx.subscribe(&editor, Self::handle_conversation_editor_event));
 797
 798        let conversation = editor.read(cx).conversation.clone();
 799        self.subscriptions
 800            .push(cx.observe(&conversation, |_, _, cx| cx.notify()));
 801
 802        let index = self.editors.len();
 803        self.editors.push(editor);
 804        self.set_active_editor_index(Some(index), cx);
 805    }
 806
 807    fn set_active_editor_index(&mut self, index: Option<usize>, cx: &mut ViewContext<Self>) {
 808        self.prev_active_editor_index = self.active_editor_index;
 809        self.active_editor_index = index;
 810        if let Some(editor) = self.active_editor() {
 811            let editor = editor.read(cx).editor.clone();
 812            self.toolbar.update(cx, |toolbar, cx| {
 813                toolbar.set_active_item(Some(&editor), cx);
 814            });
 815            if self.focus_handle.contains_focused(cx) {
 816                cx.focus_view(&editor);
 817            }
 818        } else {
 819            self.toolbar.update(cx, |toolbar, cx| {
 820                toolbar.set_active_item(None, cx);
 821            });
 822        }
 823
 824        cx.notify();
 825    }
 826
 827    fn handle_conversation_editor_event(
 828        &mut self,
 829        _: View<ConversationEditor>,
 830        event: &ConversationEditorEvent,
 831        cx: &mut ViewContext<Self>,
 832    ) {
 833        match event {
 834            ConversationEditorEvent::TabContentChanged => cx.notify(),
 835        }
 836    }
 837
 838    fn save_credentials(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
 839        if let Some(api_key) = self
 840            .api_key_editor
 841            .as_ref()
 842            .map(|editor| editor.read(cx).text(cx))
 843        {
 844            if !api_key.is_empty() {
 845                let credential = ProviderCredential::Credentials {
 846                    api_key: api_key.clone(),
 847                };
 848
 849                let completion_provider = self.completion_provider.clone();
 850                cx.spawn(|this, mut cx| async move {
 851                    cx.update(|cx| completion_provider.save_credentials(cx, credential))?
 852                        .await;
 853
 854                    this.update(&mut cx, |this, cx| {
 855                        this.api_key_editor.take();
 856                        this.focus_handle.focus(cx);
 857                        cx.notify();
 858                    })
 859                })
 860                .detach_and_log_err(cx);
 861            }
 862        } else {
 863            cx.propagate();
 864        }
 865    }
 866
 867    fn reset_credentials(&mut self, _: &ResetKey, cx: &mut ViewContext<Self>) {
 868        let completion_provider = self.completion_provider.clone();
 869        cx.spawn(|this, mut cx| async move {
 870            cx.update(|cx| completion_provider.delete_credentials(cx))?
 871                .await;
 872            this.update(&mut cx, |this, cx| {
 873                this.api_key_editor = Some(build_api_key_editor(cx));
 874                this.focus_handle.focus(cx);
 875                cx.notify();
 876            })
 877        })
 878        .detach_and_log_err(cx);
 879    }
 880
 881    fn toggle_zoom(&mut self, _: &workspace::ToggleZoom, cx: &mut ViewContext<Self>) {
 882        if self.zoomed {
 883            cx.emit(PanelEvent::ZoomOut)
 884        } else {
 885            cx.emit(PanelEvent::ZoomIn)
 886        }
 887    }
 888
 889    fn deploy(&mut self, action: &search::buffer_search::Deploy, cx: &mut ViewContext<Self>) {
 890        let mut propagate = true;
 891        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 892            search_bar.update(cx, |search_bar, cx| {
 893                if search_bar.show(cx) {
 894                    search_bar.search_suggested(cx);
 895                    if action.focus {
 896                        let focus_handle = search_bar.focus_handle(cx);
 897                        search_bar.select_query(cx);
 898                        cx.focus(&focus_handle);
 899                    }
 900                    propagate = false
 901                }
 902            });
 903        }
 904        if propagate {
 905            cx.propagate();
 906        }
 907    }
 908
 909    fn handle_editor_cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
 910        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 911            if !search_bar.read(cx).is_dismissed() {
 912                search_bar.update(cx, |search_bar, cx| {
 913                    search_bar.dismiss(&Default::default(), cx)
 914                });
 915                return;
 916            }
 917        }
 918        cx.propagate();
 919    }
 920
 921    fn select_next_match(&mut self, _: &search::SelectNextMatch, cx: &mut ViewContext<Self>) {
 922        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 923            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Next, 1, cx));
 924        }
 925    }
 926
 927    fn select_prev_match(&mut self, _: &search::SelectPrevMatch, cx: &mut ViewContext<Self>) {
 928        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 929            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Prev, 1, cx));
 930        }
 931    }
 932
 933    fn active_editor(&self) -> Option<&View<ConversationEditor>> {
 934        self.editors.get(self.active_editor_index?)
 935    }
 936
 937    fn render_api_key_editor(
 938        &self,
 939        editor: &View<Editor>,
 940        cx: &mut ViewContext<Self>,
 941    ) -> impl IntoElement {
 942        let settings = ThemeSettings::get_global(cx);
 943        let text_style = TextStyle {
 944            color: if editor.read(cx).read_only(cx) {
 945                cx.theme().colors().text_disabled
 946            } else {
 947                cx.theme().colors().text
 948            },
 949            font_family: settings.ui_font.family.clone(),
 950            font_features: settings.ui_font.features,
 951            font_size: rems(0.875).into(),
 952            font_weight: FontWeight::NORMAL,
 953            font_style: FontStyle::Normal,
 954            line_height: relative(1.3).into(),
 955            background_color: None,
 956            underline: None,
 957            white_space: WhiteSpace::Normal,
 958        };
 959        EditorElement::new(
 960            &editor,
 961            EditorStyle {
 962                background: cx.theme().colors().editor_background,
 963                local_player: cx.theme().players().local(),
 964                text: text_style,
 965                ..Default::default()
 966            },
 967        )
 968    }
 969
 970    fn render_hamburger_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
 971        IconButton::new("hamburger_button", IconName::Menu)
 972            .on_click(cx.listener(|this, _event, cx| {
 973                if this.active_editor().is_some() {
 974                    this.set_active_editor_index(None, cx);
 975                } else {
 976                    this.set_active_editor_index(this.prev_active_editor_index, cx);
 977                }
 978            }))
 979            .tooltip(|cx| Tooltip::text("Conversation History", cx))
 980    }
 981
 982    fn render_editor_tools(&self, cx: &mut ViewContext<Self>) -> Vec<AnyElement> {
 983        if self.active_editor().is_some() {
 984            vec![
 985                Self::render_split_button(cx).into_any_element(),
 986                Self::render_quote_button(cx).into_any_element(),
 987                Self::render_assist_button(cx).into_any_element(),
 988            ]
 989        } else {
 990            Default::default()
 991        }
 992    }
 993
 994    fn render_split_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
 995        IconButton::new("split_button", IconName::Snip)
 996            .on_click(cx.listener(|this, _event, cx| {
 997                if let Some(active_editor) = this.active_editor() {
 998                    active_editor.update(cx, |editor, cx| editor.split(&Default::default(), cx));
 999                }
1000            }))
1001            .icon_size(IconSize::Small)
1002            .tooltip(|cx| Tooltip::for_action("Split Message", &Split, cx))
1003    }
1004
1005    fn render_assist_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1006        IconButton::new("assist_button", IconName::MagicWand)
1007            .on_click(cx.listener(|this, _event, cx| {
1008                if let Some(active_editor) = this.active_editor() {
1009                    active_editor.update(cx, |editor, cx| editor.assist(&Default::default(), cx));
1010                }
1011            }))
1012            .icon_size(IconSize::Small)
1013            .tooltip(|cx| Tooltip::for_action("Assist", &Assist, cx))
1014    }
1015
1016    fn render_quote_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1017        IconButton::new("quote_button", IconName::Quote)
1018            .on_click(cx.listener(|this, _event, cx| {
1019                if let Some(workspace) = this.workspace.upgrade() {
1020                    cx.window_context().defer(move |cx| {
1021                        workspace.update(cx, |workspace, cx| {
1022                            ConversationEditor::quote_selection(workspace, &Default::default(), cx)
1023                        });
1024                    });
1025                }
1026            }))
1027            .icon_size(IconSize::Small)
1028            .tooltip(|cx| Tooltip::for_action("Quote Selection", &QuoteSelection, cx))
1029    }
1030
1031    fn render_plus_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1032        IconButton::new("plus_button", IconName::Plus)
1033            .on_click(cx.listener(|this, _event, cx| {
1034                this.new_conversation(cx);
1035            }))
1036            .icon_size(IconSize::Small)
1037            .tooltip(|cx| Tooltip::for_action("New Conversation", &NewConversation, cx))
1038    }
1039
1040    fn render_zoom_button(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1041        let zoomed = self.zoomed;
1042        IconButton::new("zoom_button", IconName::Maximize)
1043            .on_click(cx.listener(|this, _event, cx| {
1044                this.toggle_zoom(&ToggleZoom, cx);
1045            }))
1046            .selected(zoomed)
1047            .selected_icon(IconName::Minimize)
1048            .icon_size(IconSize::Small)
1049            .tooltip(move |cx| {
1050                Tooltip::for_action(if zoomed { "Zoom Out" } else { "Zoom In" }, &ToggleZoom, cx)
1051            })
1052    }
1053
1054    fn render_saved_conversation(
1055        &mut self,
1056        index: usize,
1057        cx: &mut ViewContext<Self>,
1058    ) -> impl IntoElement {
1059        let conversation = &self.saved_conversations[index];
1060        let path = conversation.path.clone();
1061
1062        ButtonLike::new(index)
1063            .on_click(cx.listener(move |this, _, cx| {
1064                this.open_conversation(path.clone(), cx)
1065                    .detach_and_log_err(cx)
1066            }))
1067            .full_width()
1068            .child(
1069                div()
1070                    .flex()
1071                    .w_full()
1072                    .gap_2()
1073                    .child(
1074                        Label::new(conversation.mtime.format("%F %I:%M%p").to_string())
1075                            .color(Color::Muted)
1076                            .size(LabelSize::Small),
1077                    )
1078                    .child(Label::new(conversation.title.clone()).size(LabelSize::Small)),
1079            )
1080    }
1081
1082    fn open_conversation(&mut self, path: PathBuf, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
1083        cx.focus(&self.focus_handle);
1084
1085        if let Some(ix) = self.editor_index_for_path(&path, cx) {
1086            self.set_active_editor_index(Some(ix), cx);
1087            return Task::ready(Ok(()));
1088        }
1089
1090        let fs = self.fs.clone();
1091        let workspace = self.workspace.clone();
1092        let languages = self.languages.clone();
1093        cx.spawn(|this, mut cx| async move {
1094            let saved_conversation = fs.load(&path).await?;
1095            let saved_conversation = serde_json::from_str(&saved_conversation)?;
1096            let conversation =
1097                Conversation::deserialize(saved_conversation, path.clone(), languages, &mut cx)
1098                    .await?;
1099
1100            this.update(&mut cx, |this, cx| {
1101                // If, by the time we've loaded the conversation, the user has already opened
1102                // the same conversation, we don't want to open it again.
1103                if let Some(ix) = this.editor_index_for_path(&path, cx) {
1104                    this.set_active_editor_index(Some(ix), cx);
1105                } else {
1106                    let editor = cx.new_view(|cx| {
1107                        ConversationEditor::for_conversation(conversation, fs, workspace, cx)
1108                    });
1109                    this.add_conversation(editor, cx);
1110                }
1111            })?;
1112            Ok(())
1113        })
1114    }
1115
1116    fn editor_index_for_path(&self, path: &Path, cx: &AppContext) -> Option<usize> {
1117        self.editors
1118            .iter()
1119            .position(|editor| editor.read(cx).conversation.read(cx).path.as_deref() == Some(path))
1120    }
1121
1122    fn has_credentials(&mut self) -> bool {
1123        self.completion_provider.has_credentials()
1124    }
1125
1126    fn load_credentials(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
1127        let completion_provider = self.completion_provider.clone();
1128        cx.spawn(|_, mut cx| async move {
1129            if let Some(retrieve_credentials) = cx
1130                .update(|cx| completion_provider.retrieve_credentials(cx))
1131                .log_err()
1132            {
1133                retrieve_credentials.await;
1134            }
1135        })
1136    }
1137}
1138
1139fn build_api_key_editor(cx: &mut ViewContext<AssistantPanel>) -> View<Editor> {
1140    cx.new_view(|cx| {
1141        let mut editor = Editor::single_line(cx);
1142        editor.set_placeholder_text("sk-000000000000000000000000000000000000000000000000", cx);
1143        editor
1144    })
1145}
1146
1147impl Render for AssistantPanel {
1148    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1149        if let Some(api_key_editor) = self.api_key_editor.clone() {
1150            const INSTRUCTIONS: [&'static str; 5] = [
1151                "To use the assistant panel or inline assistant, you need to add your OpenAI API key.",
1152                " - You can create an API key at: platform.openai.com/api-keys",
1153                " - Having a subscription for another service like GitHub Copilot won't work.",
1154                " ",
1155                "Paste your OpenAI API key and press Enter to use the assistant:"
1156            ];
1157
1158            v_flex()
1159                .p_4()
1160                .size_full()
1161                .on_action(cx.listener(AssistantPanel::save_credentials))
1162                .track_focus(&self.focus_handle)
1163                .children(
1164                    INSTRUCTIONS.map(|instruction| Label::new(instruction).size(LabelSize::Small)),
1165                )
1166                .child(
1167                    h_flex()
1168                        .w_full()
1169                        .my_2()
1170                        .px_2()
1171                        .py_1()
1172                        .bg(cx.theme().colors().editor_background)
1173                        .rounded_md()
1174                        .child(self.render_api_key_editor(&api_key_editor, cx)),
1175                )
1176                .child(
1177                    h_flex()
1178                        .gap_2()
1179                        .child(Label::new("Click on").size(LabelSize::Small))
1180                        .child(Icon::new(IconName::Ai).size(IconSize::XSmall))
1181                        .child(
1182                            Label::new("in the status bar to close this panel.")
1183                                .size(LabelSize::Small),
1184                        ),
1185                )
1186        } else {
1187            let header = TabBar::new("assistant_header")
1188                .start_child(
1189                    h_flex().gap_1().child(Self::render_hamburger_button(cx)), // .children(title),
1190                )
1191                .children(self.active_editor().map(|editor| {
1192                    h_flex()
1193                        .h(rems(Tab::CONTAINER_HEIGHT_IN_REMS))
1194                        .flex_1()
1195                        .px_2()
1196                        .child(Label::new(editor.read(cx).title(cx)).into_element())
1197                }))
1198                .when(self.focus_handle.contains_focused(cx), |this| {
1199                    this.end_child(
1200                        h_flex()
1201                            .gap_2()
1202                            .when(self.active_editor().is_some(), |this| {
1203                                this.child(h_flex().gap_1().children(self.render_editor_tools(cx)))
1204                                    .child(
1205                                        ui::Divider::vertical()
1206                                            .inset()
1207                                            .color(ui::DividerColor::Border),
1208                                    )
1209                            })
1210                            .child(
1211                                h_flex()
1212                                    .gap_1()
1213                                    .child(Self::render_plus_button(cx))
1214                                    .child(self.render_zoom_button(cx)),
1215                            ),
1216                    )
1217                });
1218
1219            let contents = if self.active_editor().is_some() {
1220                let mut registrar = DivRegistrar::new(
1221                    |panel, cx| panel.toolbar.read(cx).item_of_type::<BufferSearchBar>(),
1222                    cx,
1223                );
1224                BufferSearchBar::register(&mut registrar);
1225                registrar.into_div()
1226            } else {
1227                div()
1228            };
1229            v_flex()
1230                .key_context("AssistantPanel")
1231                .size_full()
1232                .on_action(cx.listener(|this, _: &workspace::NewFile, cx| {
1233                    this.new_conversation(cx);
1234                }))
1235                .on_action(cx.listener(AssistantPanel::reset_credentials))
1236                .on_action(cx.listener(AssistantPanel::toggle_zoom))
1237                .on_action(cx.listener(AssistantPanel::deploy))
1238                .on_action(cx.listener(AssistantPanel::select_next_match))
1239                .on_action(cx.listener(AssistantPanel::select_prev_match))
1240                .on_action(cx.listener(AssistantPanel::handle_editor_cancel))
1241                .track_focus(&self.focus_handle)
1242                .child(header)
1243                .children(if self.toolbar.read(cx).hidden() {
1244                    None
1245                } else {
1246                    Some(self.toolbar.clone())
1247                })
1248                .child(
1249                    contents
1250                        .flex_1()
1251                        .child(if let Some(editor) = self.active_editor() {
1252                            editor.clone().into_any_element()
1253                        } else {
1254                            let view = cx.view().clone();
1255                            let scroll_handle = self.saved_conversations_scroll_handle.clone();
1256                            let conversation_count = self.saved_conversations.len();
1257                            canvas(move |bounds, cx| {
1258                                uniform_list(
1259                                    view,
1260                                    "saved_conversations",
1261                                    conversation_count,
1262                                    |this, range, cx| {
1263                                        range
1264                                            .map(|ix| this.render_saved_conversation(ix, cx))
1265                                            .collect()
1266                                    },
1267                                )
1268                                .track_scroll(scroll_handle)
1269                                .into_any_element()
1270                                .draw(
1271                                    bounds.origin,
1272                                    bounds.size.map(AvailableSpace::Definite),
1273                                    cx,
1274                                );
1275                            })
1276                            .size_full()
1277                            .into_any_element()
1278                        }),
1279                )
1280        }
1281    }
1282}
1283
1284impl Panel for AssistantPanel {
1285    fn persistent_name() -> &'static str {
1286        "AssistantPanel"
1287    }
1288
1289    fn position(&self, cx: &WindowContext) -> DockPosition {
1290        match AssistantSettings::get_global(cx).dock {
1291            AssistantDockPosition::Left => DockPosition::Left,
1292            AssistantDockPosition::Bottom => DockPosition::Bottom,
1293            AssistantDockPosition::Right => DockPosition::Right,
1294        }
1295    }
1296
1297    fn position_is_valid(&self, _: DockPosition) -> bool {
1298        true
1299    }
1300
1301    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1302        settings::update_settings_file::<AssistantSettings>(self.fs.clone(), cx, move |settings| {
1303            let dock = match position {
1304                DockPosition::Left => AssistantDockPosition::Left,
1305                DockPosition::Bottom => AssistantDockPosition::Bottom,
1306                DockPosition::Right => AssistantDockPosition::Right,
1307            };
1308            settings.dock = Some(dock);
1309        });
1310    }
1311
1312    fn size(&self, cx: &WindowContext) -> Pixels {
1313        let settings = AssistantSettings::get_global(cx);
1314        match self.position(cx) {
1315            DockPosition::Left | DockPosition::Right => {
1316                self.width.unwrap_or_else(|| settings.default_width)
1317            }
1318            DockPosition::Bottom => self.height.unwrap_or_else(|| settings.default_height),
1319        }
1320    }
1321
1322    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
1323        match self.position(cx) {
1324            DockPosition::Left | DockPosition::Right => self.width = size,
1325            DockPosition::Bottom => self.height = size,
1326        }
1327        cx.notify();
1328    }
1329
1330    fn is_zoomed(&self, _: &WindowContext) -> bool {
1331        self.zoomed
1332    }
1333
1334    fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1335        self.zoomed = zoomed;
1336        cx.notify();
1337    }
1338
1339    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
1340        if active {
1341            let load_credentials = self.load_credentials(cx);
1342            cx.spawn(|this, mut cx| async move {
1343                load_credentials.await;
1344                this.update(&mut cx, |this, cx| {
1345                    if this.editors.is_empty() {
1346                        this.new_conversation(cx);
1347                    }
1348                })
1349            })
1350            .detach_and_log_err(cx);
1351        }
1352    }
1353
1354    fn icon(&self, cx: &WindowContext) -> Option<IconName> {
1355        Some(IconName::Ai).filter(|_| AssistantSettings::get_global(cx).button)
1356    }
1357
1358    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
1359        Some("Assistant Panel")
1360    }
1361
1362    fn toggle_action(&self) -> Box<dyn Action> {
1363        Box::new(ToggleFocus)
1364    }
1365}
1366
1367impl EventEmitter<PanelEvent> for AssistantPanel {}
1368
1369impl FocusableView for AssistantPanel {
1370    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1371        self.focus_handle.clone()
1372    }
1373}
1374
1375enum ConversationEvent {
1376    MessagesEdited,
1377    SummaryChanged,
1378    StreamedCompletion,
1379}
1380
1381#[derive(Default)]
1382struct Summary {
1383    text: String,
1384    done: bool,
1385}
1386
1387struct Conversation {
1388    id: Option<String>,
1389    buffer: Model<Buffer>,
1390    message_anchors: Vec<MessageAnchor>,
1391    messages_metadata: HashMap<MessageId, MessageMetadata>,
1392    next_message_id: MessageId,
1393    summary: Option<Summary>,
1394    pending_summary: Task<Option<()>>,
1395    completion_count: usize,
1396    pending_completions: Vec<PendingCompletion>,
1397    model: OpenAiModel,
1398    token_count: Option<usize>,
1399    max_token_count: usize,
1400    pending_token_count: Task<Option<()>>,
1401    pending_save: Task<Result<()>>,
1402    path: Option<PathBuf>,
1403    _subscriptions: Vec<Subscription>,
1404    completion_provider: Arc<dyn CompletionProvider>,
1405}
1406
1407impl EventEmitter<ConversationEvent> for Conversation {}
1408
1409impl Conversation {
1410    fn new(
1411        language_registry: Arc<LanguageRegistry>,
1412        cx: &mut ModelContext<Self>,
1413        completion_provider: Arc<dyn CompletionProvider>,
1414    ) -> Self {
1415        let markdown = language_registry.language_for_name("Markdown");
1416        let buffer = cx.new_model(|cx| {
1417            let mut buffer = Buffer::new(0, BufferId::new(cx.entity_id().as_u64()).unwrap(), "");
1418            buffer.set_language_registry(language_registry);
1419            cx.spawn(|buffer, mut cx| async move {
1420                let markdown = markdown.await?;
1421                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1422                    buffer.set_language(Some(markdown), cx)
1423                })?;
1424                anyhow::Ok(())
1425            })
1426            .detach_and_log_err(cx);
1427            buffer
1428        });
1429
1430        let settings = AssistantSettings::get_global(cx);
1431        let model = settings.default_open_ai_model.clone();
1432
1433        let mut this = Self {
1434            id: Some(Uuid::new_v4().to_string()),
1435            message_anchors: Default::default(),
1436            messages_metadata: Default::default(),
1437            next_message_id: Default::default(),
1438            summary: None,
1439            pending_summary: Task::ready(None),
1440            completion_count: Default::default(),
1441            pending_completions: Default::default(),
1442            token_count: None,
1443            max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1444            pending_token_count: Task::ready(None),
1445            model: model.clone(),
1446            _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1447            pending_save: Task::ready(Ok(())),
1448            path: None,
1449            buffer,
1450            completion_provider,
1451        };
1452        let message = MessageAnchor {
1453            id: MessageId(post_inc(&mut this.next_message_id.0)),
1454            start: language::Anchor::MIN,
1455        };
1456        this.message_anchors.push(message.clone());
1457        this.messages_metadata.insert(
1458            message.id,
1459            MessageMetadata {
1460                role: Role::User,
1461                sent_at: Local::now(),
1462                status: MessageStatus::Done,
1463            },
1464        );
1465
1466        this.count_remaining_tokens(cx);
1467        this
1468    }
1469
1470    fn serialize(&self, cx: &AppContext) -> SavedConversation {
1471        SavedConversation {
1472            id: self.id.clone(),
1473            zed: "conversation".into(),
1474            version: SavedConversation::VERSION.into(),
1475            text: self.buffer.read(cx).text(),
1476            message_metadata: self.messages_metadata.clone(),
1477            messages: self
1478                .messages(cx)
1479                .map(|message| SavedMessage {
1480                    id: message.id,
1481                    start: message.offset_range.start,
1482                })
1483                .collect(),
1484            summary: self
1485                .summary
1486                .as_ref()
1487                .map(|summary| summary.text.clone())
1488                .unwrap_or_default(),
1489            model: self.model.clone(),
1490        }
1491    }
1492
1493    async fn deserialize(
1494        saved_conversation: SavedConversation,
1495        path: PathBuf,
1496        language_registry: Arc<LanguageRegistry>,
1497        cx: &mut AsyncAppContext,
1498    ) -> Result<Model<Self>> {
1499        let id = match saved_conversation.id {
1500            Some(id) => Some(id),
1501            None => Some(Uuid::new_v4().to_string()),
1502        };
1503        let model = saved_conversation.model;
1504        let completion_provider: Arc<dyn CompletionProvider> = Arc::new(
1505            OpenAiCompletionProvider::new(
1506                model.full_name().into(),
1507                cx.background_executor().clone(),
1508            )
1509            .await,
1510        );
1511        cx.update(|cx| completion_provider.retrieve_credentials(cx))?
1512            .await;
1513
1514        let markdown = language_registry.language_for_name("Markdown");
1515        let mut message_anchors = Vec::new();
1516        let mut next_message_id = MessageId(0);
1517        let buffer = cx.new_model(|cx| {
1518            let mut buffer = Buffer::new(
1519                0,
1520                BufferId::new(cx.entity_id().as_u64()).unwrap(),
1521                saved_conversation.text,
1522            );
1523            for message in saved_conversation.messages {
1524                message_anchors.push(MessageAnchor {
1525                    id: message.id,
1526                    start: buffer.anchor_before(message.start),
1527                });
1528                next_message_id = cmp::max(next_message_id, MessageId(message.id.0 + 1));
1529            }
1530            buffer.set_language_registry(language_registry);
1531            cx.spawn(|buffer, mut cx| async move {
1532                let markdown = markdown.await?;
1533                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1534                    buffer.set_language(Some(markdown), cx)
1535                })?;
1536                anyhow::Ok(())
1537            })
1538            .detach_and_log_err(cx);
1539            buffer
1540        })?;
1541
1542        cx.new_model(|cx| {
1543            let mut this = Self {
1544                id,
1545                message_anchors,
1546                messages_metadata: saved_conversation.message_metadata,
1547                next_message_id,
1548                summary: Some(Summary {
1549                    text: saved_conversation.summary,
1550                    done: true,
1551                }),
1552                pending_summary: Task::ready(None),
1553                completion_count: Default::default(),
1554                pending_completions: Default::default(),
1555                token_count: None,
1556                max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1557                pending_token_count: Task::ready(None),
1558                model,
1559                _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1560                pending_save: Task::ready(Ok(())),
1561                path: Some(path),
1562                buffer,
1563                completion_provider,
1564            };
1565            this.count_remaining_tokens(cx);
1566            this
1567        })
1568    }
1569
1570    fn handle_buffer_event(
1571        &mut self,
1572        _: Model<Buffer>,
1573        event: &language::Event,
1574        cx: &mut ModelContext<Self>,
1575    ) {
1576        match event {
1577            language::Event::Edited => {
1578                self.count_remaining_tokens(cx);
1579                cx.emit(ConversationEvent::MessagesEdited);
1580            }
1581            _ => {}
1582        }
1583    }
1584
1585    fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
1586        let messages = self
1587            .messages(cx)
1588            .into_iter()
1589            .filter_map(|message| {
1590                Some(tiktoken_rs::ChatCompletionRequestMessage {
1591                    role: match message.role {
1592                        Role::User => "user".into(),
1593                        Role::Assistant => "assistant".into(),
1594                        Role::System => "system".into(),
1595                    },
1596                    content: Some(
1597                        self.buffer
1598                            .read(cx)
1599                            .text_for_range(message.offset_range)
1600                            .collect(),
1601                    ),
1602                    name: None,
1603                    function_call: None,
1604                })
1605            })
1606            .collect::<Vec<_>>();
1607        let model = self.model.clone();
1608        self.pending_token_count = cx.spawn(|this, mut cx| {
1609            async move {
1610                cx.background_executor()
1611                    .timer(Duration::from_millis(200))
1612                    .await;
1613                let token_count = cx
1614                    .background_executor()
1615                    .spawn(async move {
1616                        tiktoken_rs::num_tokens_from_messages(&model.full_name(), &messages)
1617                    })
1618                    .await?;
1619
1620                this.update(&mut cx, |this, cx| {
1621                    this.max_token_count =
1622                        tiktoken_rs::model::get_context_size(&this.model.full_name());
1623                    this.token_count = Some(token_count);
1624                    cx.notify()
1625                })?;
1626                anyhow::Ok(())
1627            }
1628            .log_err()
1629        });
1630    }
1631
1632    fn remaining_tokens(&self) -> Option<isize> {
1633        Some(self.max_token_count as isize - self.token_count? as isize)
1634    }
1635
1636    fn set_model(&mut self, model: OpenAiModel, cx: &mut ModelContext<Self>) {
1637        self.model = model;
1638        self.count_remaining_tokens(cx);
1639        cx.notify();
1640    }
1641
1642    fn assist(
1643        &mut self,
1644        selected_messages: HashSet<MessageId>,
1645        cx: &mut ModelContext<Self>,
1646    ) -> Vec<MessageAnchor> {
1647        let mut user_messages = Vec::new();
1648
1649        let last_message_id = if let Some(last_message_id) =
1650            self.message_anchors.iter().rev().find_map(|message| {
1651                message
1652                    .start
1653                    .is_valid(self.buffer.read(cx))
1654                    .then_some(message.id)
1655            }) {
1656            last_message_id
1657        } else {
1658            return Default::default();
1659        };
1660
1661        let mut should_assist = false;
1662        for selected_message_id in selected_messages {
1663            let selected_message_role =
1664                if let Some(metadata) = self.messages_metadata.get(&selected_message_id) {
1665                    metadata.role
1666                } else {
1667                    continue;
1668                };
1669
1670            if selected_message_role == Role::Assistant {
1671                if let Some(user_message) = self.insert_message_after(
1672                    selected_message_id,
1673                    Role::User,
1674                    MessageStatus::Done,
1675                    cx,
1676                ) {
1677                    user_messages.push(user_message);
1678                }
1679            } else {
1680                should_assist = true;
1681            }
1682        }
1683
1684        if should_assist {
1685            if !self.completion_provider.has_credentials() {
1686                log::info!("completion provider has no credentials");
1687                return Default::default();
1688            }
1689
1690            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1691                model: self.model.full_name().to_string(),
1692                messages: self
1693                    .messages(cx)
1694                    .filter(|message| matches!(message.status, MessageStatus::Done))
1695                    .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1696                    .collect(),
1697                stream: true,
1698                stop: vec![],
1699                temperature: 1.0,
1700            });
1701
1702            let stream = self.completion_provider.complete(request);
1703            let assistant_message = self
1704                .insert_message_after(last_message_id, Role::Assistant, MessageStatus::Pending, cx)
1705                .unwrap();
1706
1707            // Queue up the user's next reply.
1708            let user_message = self
1709                .insert_message_after(assistant_message.id, Role::User, MessageStatus::Done, cx)
1710                .unwrap();
1711            user_messages.push(user_message);
1712
1713            let task = cx.spawn({
1714                |this, mut cx| async move {
1715                    let assistant_message_id = assistant_message.id;
1716                    let stream_completion = async {
1717                        let mut messages = stream.await?;
1718
1719                        while let Some(message) = messages.next().await {
1720                            let text = message?;
1721
1722                            this.update(&mut cx, |this, cx| {
1723                                let message_ix = this
1724                                    .message_anchors
1725                                    .iter()
1726                                    .position(|message| message.id == assistant_message_id)?;
1727                                this.buffer.update(cx, |buffer, cx| {
1728                                    let offset = this.message_anchors[message_ix + 1..]
1729                                        .iter()
1730                                        .find(|message| message.start.is_valid(buffer))
1731                                        .map_or(buffer.len(), |message| {
1732                                            message.start.to_offset(buffer).saturating_sub(1)
1733                                        });
1734                                    buffer.edit([(offset..offset, text)], None, cx);
1735                                });
1736                                cx.emit(ConversationEvent::StreamedCompletion);
1737
1738                                Some(())
1739                            })?;
1740                            smol::future::yield_now().await;
1741                        }
1742
1743                        this.update(&mut cx, |this, cx| {
1744                            this.pending_completions
1745                                .retain(|completion| completion.id != this.completion_count);
1746                            this.summarize(cx);
1747                        })?;
1748
1749                        anyhow::Ok(())
1750                    };
1751
1752                    let result = stream_completion.await;
1753
1754                    this.update(&mut cx, |this, cx| {
1755                        if let Some(metadata) =
1756                            this.messages_metadata.get_mut(&assistant_message.id)
1757                        {
1758                            match result {
1759                                Ok(_) => {
1760                                    metadata.status = MessageStatus::Done;
1761                                }
1762                                Err(error) => {
1763                                    metadata.status = MessageStatus::Error(SharedString::from(
1764                                        error.to_string().trim().to_string(),
1765                                    ));
1766                                }
1767                            }
1768                            cx.notify();
1769                        }
1770                    })
1771                    .ok();
1772                }
1773            });
1774
1775            self.pending_completions.push(PendingCompletion {
1776                id: post_inc(&mut self.completion_count),
1777                _task: task,
1778            });
1779        }
1780
1781        user_messages
1782    }
1783
1784    fn cancel_last_assist(&mut self) -> bool {
1785        self.pending_completions.pop().is_some()
1786    }
1787
1788    fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
1789        for id in ids {
1790            if let Some(metadata) = self.messages_metadata.get_mut(&id) {
1791                metadata.role.cycle();
1792                cx.emit(ConversationEvent::MessagesEdited);
1793                cx.notify();
1794            }
1795        }
1796    }
1797
1798    fn insert_message_after(
1799        &mut self,
1800        message_id: MessageId,
1801        role: Role,
1802        status: MessageStatus,
1803        cx: &mut ModelContext<Self>,
1804    ) -> Option<MessageAnchor> {
1805        if let Some(prev_message_ix) = self
1806            .message_anchors
1807            .iter()
1808            .position(|message| message.id == message_id)
1809        {
1810            // Find the next valid message after the one we were given.
1811            let mut next_message_ix = prev_message_ix + 1;
1812            while let Some(next_message) = self.message_anchors.get(next_message_ix) {
1813                if next_message.start.is_valid(self.buffer.read(cx)) {
1814                    break;
1815                }
1816                next_message_ix += 1;
1817            }
1818
1819            let start = self.buffer.update(cx, |buffer, cx| {
1820                let offset = self
1821                    .message_anchors
1822                    .get(next_message_ix)
1823                    .map_or(buffer.len(), |message| message.start.to_offset(buffer) - 1);
1824                buffer.edit([(offset..offset, "\n")], None, cx);
1825                buffer.anchor_before(offset + 1)
1826            });
1827            let message = MessageAnchor {
1828                id: MessageId(post_inc(&mut self.next_message_id.0)),
1829                start,
1830            };
1831            self.message_anchors
1832                .insert(next_message_ix, message.clone());
1833            self.messages_metadata.insert(
1834                message.id,
1835                MessageMetadata {
1836                    role,
1837                    sent_at: Local::now(),
1838                    status,
1839                },
1840            );
1841            cx.emit(ConversationEvent::MessagesEdited);
1842            Some(message)
1843        } else {
1844            None
1845        }
1846    }
1847
1848    fn split_message(
1849        &mut self,
1850        range: Range<usize>,
1851        cx: &mut ModelContext<Self>,
1852    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
1853        let start_message = self.message_for_offset(range.start, cx);
1854        let end_message = self.message_for_offset(range.end, cx);
1855        if let Some((start_message, end_message)) = start_message.zip(end_message) {
1856            // Prevent splitting when range spans multiple messages.
1857            if start_message.id != end_message.id {
1858                return (None, None);
1859            }
1860
1861            let message = start_message;
1862            let role = message.role;
1863            let mut edited_buffer = false;
1864
1865            let mut suffix_start = None;
1866            if range.start > message.offset_range.start && range.end < message.offset_range.end - 1
1867            {
1868                if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
1869                    suffix_start = Some(range.end + 1);
1870                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
1871                    suffix_start = Some(range.end);
1872                }
1873            }
1874
1875            let suffix = if let Some(suffix_start) = suffix_start {
1876                MessageAnchor {
1877                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1878                    start: self.buffer.read(cx).anchor_before(suffix_start),
1879                }
1880            } else {
1881                self.buffer.update(cx, |buffer, cx| {
1882                    buffer.edit([(range.end..range.end, "\n")], None, cx);
1883                });
1884                edited_buffer = true;
1885                MessageAnchor {
1886                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1887                    start: self.buffer.read(cx).anchor_before(range.end + 1),
1888                }
1889            };
1890
1891            self.message_anchors
1892                .insert(message.index_range.end + 1, suffix.clone());
1893            self.messages_metadata.insert(
1894                suffix.id,
1895                MessageMetadata {
1896                    role,
1897                    sent_at: Local::now(),
1898                    status: MessageStatus::Done,
1899                },
1900            );
1901
1902            let new_messages =
1903                if range.start == range.end || range.start == message.offset_range.start {
1904                    (None, Some(suffix))
1905                } else {
1906                    let mut prefix_end = None;
1907                    if range.start > message.offset_range.start
1908                        && range.end < message.offset_range.end - 1
1909                    {
1910                        if self.buffer.read(cx).chars_at(range.start).next() == Some('\n') {
1911                            prefix_end = Some(range.start + 1);
1912                        } else if self.buffer.read(cx).reversed_chars_at(range.start).next()
1913                            == Some('\n')
1914                        {
1915                            prefix_end = Some(range.start);
1916                        }
1917                    }
1918
1919                    let selection = if let Some(prefix_end) = prefix_end {
1920                        cx.emit(ConversationEvent::MessagesEdited);
1921                        MessageAnchor {
1922                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1923                            start: self.buffer.read(cx).anchor_before(prefix_end),
1924                        }
1925                    } else {
1926                        self.buffer.update(cx, |buffer, cx| {
1927                            buffer.edit([(range.start..range.start, "\n")], None, cx)
1928                        });
1929                        edited_buffer = true;
1930                        MessageAnchor {
1931                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1932                            start: self.buffer.read(cx).anchor_before(range.end + 1),
1933                        }
1934                    };
1935
1936                    self.message_anchors
1937                        .insert(message.index_range.end + 1, selection.clone());
1938                    self.messages_metadata.insert(
1939                        selection.id,
1940                        MessageMetadata {
1941                            role,
1942                            sent_at: Local::now(),
1943                            status: MessageStatus::Done,
1944                        },
1945                    );
1946                    (Some(selection), Some(suffix))
1947                };
1948
1949            if !edited_buffer {
1950                cx.emit(ConversationEvent::MessagesEdited);
1951            }
1952            new_messages
1953        } else {
1954            (None, None)
1955        }
1956    }
1957
1958    fn summarize(&mut self, cx: &mut ModelContext<Self>) {
1959        if self.message_anchors.len() >= 2 && self.summary.is_none() {
1960            if !self.completion_provider.has_credentials() {
1961                return;
1962            }
1963
1964            let messages = self
1965                .messages(cx)
1966                .take(2)
1967                .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1968                .chain(Some(RequestMessage {
1969                    role: Role::User,
1970                    content: "Summarize the conversation into a short title without punctuation"
1971                        .into(),
1972                }));
1973            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1974                model: self.model.full_name().to_string(),
1975                messages: messages.collect(),
1976                stream: true,
1977                stop: vec![],
1978                temperature: 1.0,
1979            });
1980
1981            let stream = self.completion_provider.complete(request);
1982            self.pending_summary = cx.spawn(|this, mut cx| {
1983                async move {
1984                    let mut messages = stream.await?;
1985
1986                    while let Some(message) = messages.next().await {
1987                        let text = message?;
1988                        this.update(&mut cx, |this, cx| {
1989                            this.summary
1990                                .get_or_insert(Default::default())
1991                                .text
1992                                .push_str(&text);
1993                            cx.emit(ConversationEvent::SummaryChanged);
1994                        })?;
1995                    }
1996
1997                    this.update(&mut cx, |this, cx| {
1998                        if let Some(summary) = this.summary.as_mut() {
1999                            summary.done = true;
2000                            cx.emit(ConversationEvent::SummaryChanged);
2001                        }
2002                    })?;
2003
2004                    anyhow::Ok(())
2005                }
2006                .log_err()
2007            });
2008        }
2009    }
2010
2011    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
2012        self.messages_for_offsets([offset], cx).pop()
2013    }
2014
2015    fn messages_for_offsets(
2016        &self,
2017        offsets: impl IntoIterator<Item = usize>,
2018        cx: &AppContext,
2019    ) -> Vec<Message> {
2020        let mut result = Vec::new();
2021
2022        let mut messages = self.messages(cx).peekable();
2023        let mut offsets = offsets.into_iter().peekable();
2024        let mut current_message = messages.next();
2025        while let Some(offset) = offsets.next() {
2026            // Locate the message that contains the offset.
2027            while current_message.as_ref().map_or(false, |message| {
2028                !message.offset_range.contains(&offset) && messages.peek().is_some()
2029            }) {
2030                current_message = messages.next();
2031            }
2032            let Some(message) = current_message.as_ref() else {
2033                break;
2034            };
2035
2036            // Skip offsets that are in the same message.
2037            while offsets.peek().map_or(false, |offset| {
2038                message.offset_range.contains(offset) || messages.peek().is_none()
2039            }) {
2040                offsets.next();
2041            }
2042
2043            result.push(message.clone());
2044        }
2045        result
2046    }
2047
2048    fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
2049        let buffer = self.buffer.read(cx);
2050        let mut message_anchors = self.message_anchors.iter().enumerate().peekable();
2051        iter::from_fn(move || {
2052            while let Some((start_ix, message_anchor)) = message_anchors.next() {
2053                let metadata = self.messages_metadata.get(&message_anchor.id)?;
2054                let message_start = message_anchor.start.to_offset(buffer);
2055                let mut message_end = None;
2056                let mut end_ix = start_ix;
2057                while let Some((_, next_message)) = message_anchors.peek() {
2058                    if next_message.start.is_valid(buffer) {
2059                        message_end = Some(next_message.start);
2060                        break;
2061                    } else {
2062                        end_ix += 1;
2063                        message_anchors.next();
2064                    }
2065                }
2066                let message_end = message_end
2067                    .unwrap_or(language::Anchor::MAX)
2068                    .to_offset(buffer);
2069                return Some(Message {
2070                    index_range: start_ix..end_ix,
2071                    offset_range: message_start..message_end,
2072                    id: message_anchor.id,
2073                    anchor: message_anchor.start,
2074                    role: metadata.role,
2075                    sent_at: metadata.sent_at,
2076                    status: metadata.status.clone(),
2077                });
2078            }
2079            None
2080        })
2081    }
2082
2083    fn save(
2084        &mut self,
2085        debounce: Option<Duration>,
2086        fs: Arc<dyn Fs>,
2087        cx: &mut ModelContext<Conversation>,
2088    ) {
2089        self.pending_save = cx.spawn(|this, mut cx| async move {
2090            if let Some(debounce) = debounce {
2091                cx.background_executor().timer(debounce).await;
2092            }
2093
2094            let (old_path, summary) = this.read_with(&cx, |this, _| {
2095                let path = this.path.clone();
2096                let summary = if let Some(summary) = this.summary.as_ref() {
2097                    if summary.done {
2098                        Some(summary.text.clone())
2099                    } else {
2100                        None
2101                    }
2102                } else {
2103                    None
2104                };
2105                (path, summary)
2106            })?;
2107
2108            if let Some(summary) = summary {
2109                let conversation = this.read_with(&cx, |this, cx| this.serialize(cx))?;
2110                let path = if let Some(old_path) = old_path {
2111                    old_path
2112                } else {
2113                    let mut discriminant = 1;
2114                    let mut new_path;
2115                    loop {
2116                        new_path = CONVERSATIONS_DIR.join(&format!(
2117                            "{} - {}.zed.json",
2118                            summary.trim(),
2119                            discriminant
2120                        ));
2121                        if fs.is_file(&new_path).await {
2122                            discriminant += 1;
2123                        } else {
2124                            break;
2125                        }
2126                    }
2127                    new_path
2128                };
2129
2130                fs.create_dir(CONVERSATIONS_DIR.as_ref()).await?;
2131                fs.atomic_write(path.clone(), serde_json::to_string(&conversation).unwrap())
2132                    .await?;
2133                this.update(&mut cx, |this, _| this.path = Some(path))?;
2134            }
2135
2136            Ok(())
2137        });
2138    }
2139}
2140
2141struct PendingCompletion {
2142    id: usize,
2143    _task: Task<()>,
2144}
2145
2146enum ConversationEditorEvent {
2147    TabContentChanged,
2148}
2149
2150#[derive(Copy, Clone, Debug, PartialEq)]
2151struct ScrollPosition {
2152    offset_before_cursor: gpui::Point<f32>,
2153    cursor: Anchor,
2154}
2155
2156struct ConversationEditor {
2157    conversation: Model<Conversation>,
2158    fs: Arc<dyn Fs>,
2159    workspace: WeakView<Workspace>,
2160    editor: View<Editor>,
2161    blocks: HashSet<BlockId>,
2162    scroll_position: Option<ScrollPosition>,
2163    _subscriptions: Vec<Subscription>,
2164}
2165
2166impl ConversationEditor {
2167    fn new(
2168        completion_provider: Arc<dyn CompletionProvider>,
2169        language_registry: Arc<LanguageRegistry>,
2170        fs: Arc<dyn Fs>,
2171        workspace: WeakView<Workspace>,
2172        cx: &mut ViewContext<Self>,
2173    ) -> Self {
2174        let conversation =
2175            cx.new_model(|cx| Conversation::new(language_registry, cx, completion_provider));
2176        Self::for_conversation(conversation, fs, workspace, cx)
2177    }
2178
2179    fn for_conversation(
2180        conversation: Model<Conversation>,
2181        fs: Arc<dyn Fs>,
2182        workspace: WeakView<Workspace>,
2183        cx: &mut ViewContext<Self>,
2184    ) -> Self {
2185        let editor = cx.new_view(|cx| {
2186            let mut editor = Editor::for_buffer(conversation.read(cx).buffer.clone(), None, cx);
2187            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
2188            editor.set_show_gutter(false, cx);
2189            editor.set_show_wrap_guides(false, cx);
2190            editor
2191        });
2192
2193        let _subscriptions = vec![
2194            cx.observe(&conversation, |_, _, cx| cx.notify()),
2195            cx.subscribe(&conversation, Self::handle_conversation_event),
2196            cx.subscribe(&editor, Self::handle_editor_event),
2197        ];
2198
2199        let mut this = Self {
2200            conversation,
2201            editor,
2202            blocks: Default::default(),
2203            scroll_position: None,
2204            fs,
2205            workspace,
2206            _subscriptions,
2207        };
2208        this.update_message_headers(cx);
2209        this
2210    }
2211
2212    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
2213        report_assistant_event(
2214            self.workspace.clone(),
2215            self.conversation.read(cx).id.clone(),
2216            AssistantKind::Panel,
2217            cx,
2218        );
2219
2220        let cursors = self.cursors(cx);
2221
2222        let user_messages = self.conversation.update(cx, |conversation, cx| {
2223            let selected_messages = conversation
2224                .messages_for_offsets(cursors, cx)
2225                .into_iter()
2226                .map(|message| message.id)
2227                .collect();
2228            conversation.assist(selected_messages, cx)
2229        });
2230        let new_selections = user_messages
2231            .iter()
2232            .map(|message| {
2233                let cursor = message
2234                    .start
2235                    .to_offset(self.conversation.read(cx).buffer.read(cx));
2236                cursor..cursor
2237            })
2238            .collect::<Vec<_>>();
2239        if !new_selections.is_empty() {
2240            self.editor.update(cx, |editor, cx| {
2241                editor.change_selections(
2242                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
2243                    cx,
2244                    |selections| selections.select_ranges(new_selections),
2245                );
2246            });
2247            // Avoid scrolling to the new cursor position so the assistant's output is stable.
2248            cx.defer(|this, _| this.scroll_position = None);
2249        }
2250    }
2251
2252    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2253        if !self
2254            .conversation
2255            .update(cx, |conversation, _| conversation.cancel_last_assist())
2256        {
2257            cx.propagate();
2258        }
2259    }
2260
2261    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
2262        let cursors = self.cursors(cx);
2263        self.conversation.update(cx, |conversation, cx| {
2264            let messages = conversation
2265                .messages_for_offsets(cursors, cx)
2266                .into_iter()
2267                .map(|message| message.id)
2268                .collect();
2269            conversation.cycle_message_roles(messages, cx)
2270        });
2271    }
2272
2273    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
2274        let selections = self.editor.read(cx).selections.all::<usize>(cx);
2275        selections
2276            .into_iter()
2277            .map(|selection| selection.head())
2278            .collect()
2279    }
2280
2281    fn handle_conversation_event(
2282        &mut self,
2283        _: Model<Conversation>,
2284        event: &ConversationEvent,
2285        cx: &mut ViewContext<Self>,
2286    ) {
2287        match event {
2288            ConversationEvent::MessagesEdited => {
2289                self.update_message_headers(cx);
2290                self.conversation.update(cx, |conversation, cx| {
2291                    conversation.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
2292                });
2293            }
2294            ConversationEvent::SummaryChanged => {
2295                cx.emit(ConversationEditorEvent::TabContentChanged);
2296                self.conversation.update(cx, |conversation, cx| {
2297                    conversation.save(None, self.fs.clone(), cx);
2298                });
2299            }
2300            ConversationEvent::StreamedCompletion => {
2301                self.editor.update(cx, |editor, cx| {
2302                    if let Some(scroll_position) = self.scroll_position {
2303                        let snapshot = editor.snapshot(cx);
2304                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
2305                        let scroll_top =
2306                            cursor_point.row() as f32 - scroll_position.offset_before_cursor.y;
2307                        editor.set_scroll_position(
2308                            point(scroll_position.offset_before_cursor.x, scroll_top),
2309                            cx,
2310                        );
2311                    }
2312                });
2313            }
2314        }
2315    }
2316
2317    fn handle_editor_event(
2318        &mut self,
2319        _: View<Editor>,
2320        event: &EditorEvent,
2321        cx: &mut ViewContext<Self>,
2322    ) {
2323        match event {
2324            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
2325                let cursor_scroll_position = self.cursor_scroll_position(cx);
2326                if *autoscroll {
2327                    self.scroll_position = cursor_scroll_position;
2328                } else if self.scroll_position != cursor_scroll_position {
2329                    self.scroll_position = None;
2330                }
2331            }
2332            EditorEvent::SelectionsChanged { .. } => {
2333                self.scroll_position = self.cursor_scroll_position(cx);
2334            }
2335            _ => {}
2336        }
2337    }
2338
2339    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2340        self.editor.update(cx, |editor, cx| {
2341            let snapshot = editor.snapshot(cx);
2342            let cursor = editor.selections.newest_anchor().head();
2343            let cursor_row = cursor.to_display_point(&snapshot.display_snapshot).row() as f32;
2344            let scroll_position = editor
2345                .scroll_manager
2346                .anchor()
2347                .scroll_position(&snapshot.display_snapshot);
2348
2349            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2350            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2351                Some(ScrollPosition {
2352                    cursor,
2353                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2354                })
2355            } else {
2356                None
2357            }
2358        })
2359    }
2360
2361    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2362        self.editor.update(cx, |editor, cx| {
2363            let buffer = editor.buffer().read(cx).snapshot(cx);
2364            let excerpt_id = *buffer.as_singleton().unwrap().0;
2365            let old_blocks = std::mem::take(&mut self.blocks);
2366            let new_blocks = self
2367                .conversation
2368                .read(cx)
2369                .messages(cx)
2370                .map(|message| BlockProperties {
2371                    position: buffer.anchor_in_excerpt(excerpt_id, message.anchor),
2372                    height: 2,
2373                    style: BlockStyle::Sticky,
2374                    render: Arc::new({
2375                        let conversation = self.conversation.clone();
2376                        move |_cx| {
2377                            let message_id = message.id;
2378                            let sender = ButtonLike::new("role")
2379                                .style(ButtonStyle::Filled)
2380                                .child(match message.role {
2381                                    Role::User => Label::new("You").color(Color::Default),
2382                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2383                                    Role::System => Label::new("System").color(Color::Warning),
2384                                })
2385                                .tooltip(|cx| {
2386                                    Tooltip::with_meta(
2387                                        "Toggle message role",
2388                                        None,
2389                                        "Available roles: You (User), Assistant, System",
2390                                        cx,
2391                                    )
2392                                })
2393                                .on_click({
2394                                    let conversation = conversation.clone();
2395                                    move |_, cx| {
2396                                        conversation.update(cx, |conversation, cx| {
2397                                            conversation.cycle_message_roles(
2398                                                HashSet::from_iter(Some(message_id)),
2399                                                cx,
2400                                            )
2401                                        })
2402                                    }
2403                                });
2404
2405                            h_flex()
2406                                .id(("message_header", message_id.0))
2407                                .h_11()
2408                                .relative()
2409                                .gap_1()
2410                                .child(sender)
2411                                // TODO: Only show this if the message if the message has been sent
2412                                .child(
2413                                    Label::new(
2414                                        FormatDistance::from_now(DateTimeType::Local(
2415                                            message.sent_at,
2416                                        ))
2417                                        .hide_prefix(true)
2418                                        .add_suffix(true)
2419                                        .to_string(),
2420                                    )
2421                                    .size(LabelSize::XSmall)
2422                                    .color(Color::Muted),
2423                                )
2424                                .children(
2425                                    if let MessageStatus::Error(error) = message.status.clone() {
2426                                        Some(
2427                                            div()
2428                                                .id("error")
2429                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2430                                                .child(Icon::new(IconName::XCircle)),
2431                                        )
2432                                    } else {
2433                                        None
2434                                    },
2435                                )
2436                                .into_any_element()
2437                        }
2438                    }),
2439                    disposition: BlockDisposition::Above,
2440                })
2441                .collect::<Vec<_>>();
2442
2443            editor.remove_blocks(old_blocks, None, cx);
2444            let ids = editor.insert_blocks(new_blocks, None, cx);
2445            self.blocks = HashSet::from_iter(ids);
2446        });
2447    }
2448
2449    fn quote_selection(
2450        workspace: &mut Workspace,
2451        _: &QuoteSelection,
2452        cx: &mut ViewContext<Workspace>,
2453    ) {
2454        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2455            return;
2456        };
2457        let Some(editor) = workspace
2458            .active_item(cx)
2459            .and_then(|item| item.act_as::<Editor>(cx))
2460        else {
2461            return;
2462        };
2463
2464        let editor = editor.read(cx);
2465        let range = editor.selections.newest::<usize>(cx).range();
2466        let buffer = editor.buffer().read(cx).snapshot(cx);
2467        let start_language = buffer.language_at(range.start);
2468        let end_language = buffer.language_at(range.end);
2469        let language_name = if start_language == end_language {
2470            start_language.map(|language| language.name())
2471        } else {
2472            None
2473        };
2474        let language_name = language_name.as_deref().unwrap_or("").to_lowercase();
2475
2476        let selected_text = buffer.text_for_range(range).collect::<String>();
2477        let text = if selected_text.is_empty() {
2478            None
2479        } else {
2480            Some(if language_name == "markdown" {
2481                selected_text
2482                    .lines()
2483                    .map(|line| format!("> {}", line))
2484                    .collect::<Vec<_>>()
2485                    .join("\n")
2486            } else {
2487                format!("```{language_name}\n{selected_text}\n```")
2488            })
2489        };
2490
2491        // Activate the panel
2492        if !panel.focus_handle(cx).contains_focused(cx) {
2493            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2494        }
2495
2496        if let Some(text) = text {
2497            panel.update(cx, |panel, cx| {
2498                let conversation = panel
2499                    .active_editor()
2500                    .cloned()
2501                    .unwrap_or_else(|| panel.new_conversation(cx));
2502                conversation.update(cx, |conversation, cx| {
2503                    conversation
2504                        .editor
2505                        .update(cx, |editor, cx| editor.insert(&text, cx))
2506                });
2507            });
2508        }
2509    }
2510
2511    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2512        let editor = self.editor.read(cx);
2513        let conversation = self.conversation.read(cx);
2514        if editor.selections.count() == 1 {
2515            let selection = editor.selections.newest::<usize>(cx);
2516            let mut copied_text = String::new();
2517            let mut spanned_messages = 0;
2518            for message in conversation.messages(cx) {
2519                if message.offset_range.start >= selection.range().end {
2520                    break;
2521                } else if message.offset_range.end >= selection.range().start {
2522                    let range = cmp::max(message.offset_range.start, selection.range().start)
2523                        ..cmp::min(message.offset_range.end, selection.range().end);
2524                    if !range.is_empty() {
2525                        spanned_messages += 1;
2526                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2527                        for chunk in conversation.buffer.read(cx).text_for_range(range) {
2528                            copied_text.push_str(&chunk);
2529                        }
2530                        copied_text.push('\n');
2531                    }
2532                }
2533            }
2534
2535            if spanned_messages > 1 {
2536                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2537                return;
2538            }
2539        }
2540
2541        cx.propagate();
2542    }
2543
2544    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2545        self.conversation.update(cx, |conversation, cx| {
2546            let selections = self.editor.read(cx).selections.disjoint_anchors();
2547            for selection in selections.into_iter() {
2548                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2549                let range = selection
2550                    .map(|endpoint| endpoint.to_offset(&buffer))
2551                    .range();
2552                conversation.split_message(range, cx);
2553            }
2554        });
2555    }
2556
2557    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2558        self.conversation.update(cx, |conversation, cx| {
2559            conversation.save(None, self.fs.clone(), cx)
2560        });
2561    }
2562
2563    fn cycle_model(&mut self, cx: &mut ViewContext<Self>) {
2564        self.conversation.update(cx, |conversation, cx| {
2565            let new_model = conversation.model.cycle();
2566            conversation.set_model(new_model, cx);
2567        });
2568    }
2569
2570    fn title(&self, cx: &AppContext) -> String {
2571        self.conversation
2572            .read(cx)
2573            .summary
2574            .as_ref()
2575            .map(|summary| summary.text.clone())
2576            .unwrap_or_else(|| "New Conversation".into())
2577    }
2578
2579    fn render_current_model(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2580        Button::new(
2581            "current_model",
2582            self.conversation.read(cx).model.short_name(),
2583        )
2584        .style(ButtonStyle::Filled)
2585        .tooltip(move |cx| Tooltip::text("Change Model", cx))
2586        .on_click(cx.listener(|this, _, cx| this.cycle_model(cx)))
2587    }
2588
2589    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2590        let remaining_tokens = self.conversation.read(cx).remaining_tokens()?;
2591        let remaining_tokens_color = if remaining_tokens <= 0 {
2592            Color::Error
2593        } else if remaining_tokens <= 500 {
2594            Color::Warning
2595        } else {
2596            Color::Default
2597        };
2598        Some(Label::new(remaining_tokens.to_string()).color(remaining_tokens_color))
2599    }
2600}
2601
2602impl EventEmitter<ConversationEditorEvent> for ConversationEditor {}
2603
2604impl Render for ConversationEditor {
2605    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2606        div()
2607            .key_context("ConversationEditor")
2608            .capture_action(cx.listener(ConversationEditor::cancel_last_assist))
2609            .capture_action(cx.listener(ConversationEditor::save))
2610            .capture_action(cx.listener(ConversationEditor::copy))
2611            .capture_action(cx.listener(ConversationEditor::cycle_message_role))
2612            .on_action(cx.listener(ConversationEditor::assist))
2613            .on_action(cx.listener(ConversationEditor::split))
2614            .size_full()
2615            .relative()
2616            .child(
2617                div()
2618                    .size_full()
2619                    .pl_4()
2620                    .bg(cx.theme().colors().editor_background)
2621                    .child(self.editor.clone()),
2622            )
2623            .child(
2624                h_flex()
2625                    .absolute()
2626                    .gap_1()
2627                    .top_3()
2628                    .right_5()
2629                    .child(self.render_current_model(cx))
2630                    .children(self.render_remaining_tokens(cx)),
2631            )
2632    }
2633}
2634
2635impl FocusableView for ConversationEditor {
2636    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2637        self.editor.focus_handle(cx)
2638    }
2639}
2640
2641#[derive(Clone, Debug)]
2642struct MessageAnchor {
2643    id: MessageId,
2644    start: language::Anchor,
2645}
2646
2647#[derive(Clone, Debug)]
2648pub struct Message {
2649    offset_range: Range<usize>,
2650    index_range: Range<usize>,
2651    id: MessageId,
2652    anchor: language::Anchor,
2653    role: Role,
2654    sent_at: DateTime<Local>,
2655    status: MessageStatus,
2656}
2657
2658impl Message {
2659    fn to_open_ai_message(&self, buffer: &Buffer) -> RequestMessage {
2660        let content = buffer
2661            .text_for_range(self.offset_range.clone())
2662            .collect::<String>();
2663        RequestMessage {
2664            role: self.role,
2665            content: content.trim_end().into(),
2666        }
2667    }
2668}
2669
2670enum InlineAssistantEvent {
2671    Confirmed {
2672        prompt: String,
2673        include_conversation: bool,
2674        retrieve_context: bool,
2675    },
2676    Canceled,
2677    Dismissed,
2678    IncludeConversationToggled {
2679        include_conversation: bool,
2680    },
2681    RetrieveContextToggled {
2682        retrieve_context: bool,
2683    },
2684}
2685
2686struct InlineAssistant {
2687    id: usize,
2688    prompt_editor: View<Editor>,
2689    workspace: WeakView<Workspace>,
2690    confirmed: bool,
2691    include_conversation: bool,
2692    measurements: Rc<Cell<BlockMeasurements>>,
2693    prompt_history: VecDeque<String>,
2694    prompt_history_ix: Option<usize>,
2695    pending_prompt: String,
2696    codegen: Model<Codegen>,
2697    _subscriptions: Vec<Subscription>,
2698    retrieve_context: bool,
2699    semantic_index: Option<Model<SemanticIndex>>,
2700    semantic_permissioned: Option<bool>,
2701    project: WeakModel<Project>,
2702    maintain_rate_limit: Option<Task<()>>,
2703}
2704
2705impl EventEmitter<InlineAssistantEvent> for InlineAssistant {}
2706
2707impl Render for InlineAssistant {
2708    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2709        let measurements = self.measurements.get();
2710        h_flex()
2711            .w_full()
2712            .py_2()
2713            .border_y_1()
2714            .border_color(cx.theme().colors().border)
2715            .on_action(cx.listener(Self::confirm))
2716            .on_action(cx.listener(Self::cancel))
2717            .on_action(cx.listener(Self::toggle_include_conversation))
2718            .on_action(cx.listener(Self::toggle_retrieve_context))
2719            .on_action(cx.listener(Self::move_up))
2720            .on_action(cx.listener(Self::move_down))
2721            .child(
2722                h_flex()
2723                    .justify_center()
2724                    .w(measurements.gutter_width)
2725                    .child(
2726                        IconButton::new("include_conversation", IconName::Ai)
2727                            .on_click(cx.listener(|this, _, cx| {
2728                                this.toggle_include_conversation(&ToggleIncludeConversation, cx)
2729                            }))
2730                            .selected(self.include_conversation)
2731                            .tooltip(|cx| {
2732                                Tooltip::for_action(
2733                                    "Include Conversation",
2734                                    &ToggleIncludeConversation,
2735                                    cx,
2736                                )
2737                            }),
2738                    )
2739                    .children(if SemanticIndex::enabled(cx) {
2740                        Some(
2741                            IconButton::new("retrieve_context", IconName::MagnifyingGlass)
2742                                .on_click(cx.listener(|this, _, cx| {
2743                                    this.toggle_retrieve_context(&ToggleRetrieveContext, cx)
2744                                }))
2745                                .selected(self.retrieve_context)
2746                                .tooltip(|cx| {
2747                                    Tooltip::for_action(
2748                                        "Retrieve Context",
2749                                        &ToggleRetrieveContext,
2750                                        cx,
2751                                    )
2752                                }),
2753                        )
2754                    } else {
2755                        None
2756                    })
2757                    .children(if let Some(error) = self.codegen.read(cx).error() {
2758                        let error_message = SharedString::from(error.to_string());
2759                        Some(
2760                            div()
2761                                .id("error")
2762                                .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
2763                                .child(Icon::new(IconName::XCircle).color(Color::Error)),
2764                        )
2765                    } else {
2766                        None
2767                    }),
2768            )
2769            .child(
2770                h_flex()
2771                    .w_full()
2772                    .ml(measurements.anchor_x - measurements.gutter_width)
2773                    .child(self.render_prompt_editor(cx)),
2774            )
2775            .children(if self.retrieve_context {
2776                self.retrieve_context_status(cx)
2777            } else {
2778                None
2779            })
2780    }
2781}
2782
2783impl FocusableView for InlineAssistant {
2784    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2785        self.prompt_editor.focus_handle(cx)
2786    }
2787}
2788
2789impl InlineAssistant {
2790    fn new(
2791        id: usize,
2792        measurements: Rc<Cell<BlockMeasurements>>,
2793        include_conversation: bool,
2794        prompt_history: VecDeque<String>,
2795        codegen: Model<Codegen>,
2796        workspace: WeakView<Workspace>,
2797        cx: &mut ViewContext<Self>,
2798        retrieve_context: bool,
2799        semantic_index: Option<Model<SemanticIndex>>,
2800        project: Model<Project>,
2801    ) -> Self {
2802        let prompt_editor = cx.new_view(|cx| {
2803            let mut editor = Editor::single_line(cx);
2804            let placeholder = match codegen.read(cx).kind() {
2805                CodegenKind::Transform { .. } => "Enter transformation prompt…",
2806                CodegenKind::Generate { .. } => "Enter generation prompt…",
2807            };
2808            editor.set_placeholder_text(placeholder, cx);
2809            editor
2810        });
2811        cx.focus_view(&prompt_editor);
2812
2813        let mut subscriptions = vec![
2814            cx.observe(&codegen, Self::handle_codegen_changed),
2815            cx.subscribe(&prompt_editor, Self::handle_prompt_editor_events),
2816        ];
2817
2818        if let Some(semantic_index) = semantic_index.clone() {
2819            subscriptions.push(cx.observe(&semantic_index, Self::semantic_index_changed));
2820        }
2821
2822        let assistant = Self {
2823            id,
2824            prompt_editor,
2825            workspace,
2826            confirmed: false,
2827            include_conversation,
2828            measurements,
2829            prompt_history,
2830            prompt_history_ix: None,
2831            pending_prompt: String::new(),
2832            codegen,
2833            _subscriptions: subscriptions,
2834            retrieve_context,
2835            semantic_permissioned: None,
2836            semantic_index,
2837            project: project.downgrade(),
2838            maintain_rate_limit: None,
2839        };
2840
2841        assistant.index_project(cx).log_err();
2842
2843        assistant
2844    }
2845
2846    fn semantic_permissioned(&self, cx: &mut ViewContext<Self>) -> Task<Result<bool>> {
2847        if let Some(value) = self.semantic_permissioned {
2848            return Task::ready(Ok(value));
2849        }
2850
2851        let Some(project) = self.project.upgrade() else {
2852            return Task::ready(Err(anyhow!("project was dropped")));
2853        };
2854
2855        self.semantic_index
2856            .as_ref()
2857            .map(|semantic| {
2858                semantic.update(cx, |this, cx| this.project_previously_indexed(&project, cx))
2859            })
2860            .unwrap_or(Task::ready(Ok(false)))
2861    }
2862
2863    fn handle_prompt_editor_events(
2864        &mut self,
2865        _: View<Editor>,
2866        event: &EditorEvent,
2867        cx: &mut ViewContext<Self>,
2868    ) {
2869        if let EditorEvent::Edited = event {
2870            self.pending_prompt = self.prompt_editor.read(cx).text(cx);
2871            cx.notify();
2872        }
2873    }
2874
2875    fn semantic_index_changed(
2876        &mut self,
2877        semantic_index: Model<SemanticIndex>,
2878        cx: &mut ViewContext<Self>,
2879    ) {
2880        let Some(project) = self.project.upgrade() else {
2881            return;
2882        };
2883
2884        let status = semantic_index.read(cx).status(&project);
2885        match status {
2886            SemanticIndexStatus::Indexing {
2887                rate_limit_expiry: Some(_),
2888                ..
2889            } => {
2890                if self.maintain_rate_limit.is_none() {
2891                    self.maintain_rate_limit = Some(cx.spawn(|this, mut cx| async move {
2892                        loop {
2893                            cx.background_executor().timer(Duration::from_secs(1)).await;
2894                            this.update(&mut cx, |_, cx| cx.notify()).log_err();
2895                        }
2896                    }));
2897                }
2898                return;
2899            }
2900            _ => {
2901                self.maintain_rate_limit = None;
2902            }
2903        }
2904    }
2905
2906    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
2907        let is_read_only = !self.codegen.read(cx).idle();
2908        self.prompt_editor.update(cx, |editor, cx| {
2909            let was_read_only = editor.read_only(cx);
2910            if was_read_only != is_read_only {
2911                if is_read_only {
2912                    editor.set_read_only(true);
2913                } else {
2914                    self.confirmed = false;
2915                    editor.set_read_only(false);
2916                }
2917            }
2918        });
2919        cx.notify();
2920    }
2921
2922    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2923        cx.emit(InlineAssistantEvent::Canceled);
2924    }
2925
2926    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
2927        if self.confirmed {
2928            cx.emit(InlineAssistantEvent::Dismissed);
2929        } else {
2930            report_assistant_event(self.workspace.clone(), None, AssistantKind::Inline, cx);
2931
2932            let prompt = self.prompt_editor.read(cx).text(cx);
2933            self.prompt_editor
2934                .update(cx, |editor, _cx| editor.set_read_only(true));
2935            cx.emit(InlineAssistantEvent::Confirmed {
2936                prompt,
2937                include_conversation: self.include_conversation,
2938                retrieve_context: self.retrieve_context,
2939            });
2940            self.confirmed = true;
2941            cx.notify();
2942        }
2943    }
2944
2945    fn toggle_retrieve_context(&mut self, _: &ToggleRetrieveContext, cx: &mut ViewContext<Self>) {
2946        let semantic_permissioned = self.semantic_permissioned(cx);
2947
2948        let Some(project) = self.project.upgrade() else {
2949            return;
2950        };
2951
2952        let project_name = project
2953            .read(cx)
2954            .worktree_root_names(cx)
2955            .collect::<Vec<&str>>()
2956            .join("/");
2957        let is_plural = project_name.chars().filter(|letter| *letter == '/').count() > 0;
2958        let prompt_text = format!("Would you like to index the '{}' project{} for context retrieval? This requires sending code to the OpenAI API", project_name,
2959            if is_plural {
2960                "s"
2961            } else {""});
2962
2963        cx.spawn(|this, mut cx| async move {
2964            // If Necessary prompt user
2965            if !semantic_permissioned.await.unwrap_or(false) {
2966                let answer = this.update(&mut cx, |_, cx| {
2967                    cx.prompt(
2968                        PromptLevel::Info,
2969                        prompt_text.as_str(),
2970                        None,
2971                        &["Continue", "Cancel"],
2972                    )
2973                })?;
2974
2975                if answer.await? == 0 {
2976                    this.update(&mut cx, |this, _| {
2977                        this.semantic_permissioned = Some(true);
2978                    })?;
2979                } else {
2980                    return anyhow::Ok(());
2981                }
2982            }
2983
2984            // If permissioned, update context appropriately
2985            this.update(&mut cx, |this, cx| {
2986                this.retrieve_context = !this.retrieve_context;
2987
2988                cx.emit(InlineAssistantEvent::RetrieveContextToggled {
2989                    retrieve_context: this.retrieve_context,
2990                });
2991
2992                if this.retrieve_context {
2993                    this.index_project(cx).log_err();
2994                }
2995
2996                cx.notify();
2997            })?;
2998
2999            anyhow::Ok(())
3000        })
3001        .detach_and_log_err(cx);
3002    }
3003
3004    fn index_project(&self, cx: &mut ViewContext<Self>) -> anyhow::Result<()> {
3005        let Some(project) = self.project.upgrade() else {
3006            return Err(anyhow!("project was dropped!"));
3007        };
3008
3009        let semantic_permissioned = self.semantic_permissioned(cx);
3010        if let Some(semantic_index) = SemanticIndex::global(cx) {
3011            cx.spawn(|_, mut cx| async move {
3012                // This has to be updated to accommodate for semantic_permissions
3013                if semantic_permissioned.await.unwrap_or(false) {
3014                    semantic_index
3015                        .update(&mut cx, |index, cx| index.index_project(project, cx))?
3016                        .await
3017                } else {
3018                    Err(anyhow!("project is not permissioned for semantic indexing"))
3019                }
3020            })
3021            .detach_and_log_err(cx);
3022        }
3023
3024        anyhow::Ok(())
3025    }
3026
3027    fn retrieve_context_status(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
3028        let Some(project) = self.project.upgrade() else {
3029            return None;
3030        };
3031
3032        let semantic_index = SemanticIndex::global(cx)?;
3033        let status = semantic_index.update(cx, |index, _| index.status(&project));
3034        match status {
3035            SemanticIndexStatus::NotAuthenticated {} => Some(
3036                div()
3037                    .id("error")
3038                    .tooltip(|cx| Tooltip::text("Not Authenticated. Please ensure you have a valid 'OPENAI_API_KEY' in your environment variables.", cx))
3039                    .child(Icon::new(IconName::XCircle))
3040                    .into_any_element()
3041            ),
3042
3043            SemanticIndexStatus::NotIndexed {} => Some(
3044                div()
3045                    .id("error")
3046                    .tooltip(|cx| Tooltip::text("Not Indexed", cx))
3047                    .child(Icon::new(IconName::XCircle))
3048                    .into_any_element()
3049            ),
3050
3051            SemanticIndexStatus::Indexing {
3052                remaining_files,
3053                rate_limit_expiry,
3054            } => {
3055                let mut status_text = if remaining_files == 0 {
3056                    "Indexing...".to_string()
3057                } else {
3058                    format!("Remaining files to index: {remaining_files}")
3059                };
3060
3061                if let Some(rate_limit_expiry) = rate_limit_expiry {
3062                    let remaining_seconds = rate_limit_expiry.duration_since(Instant::now());
3063                    if remaining_seconds > Duration::from_secs(0) && remaining_files > 0 {
3064                        write!(
3065                            status_text,
3066                            " (rate limit expires in {}s)",
3067                            remaining_seconds.as_secs()
3068                        )
3069                        .unwrap();
3070                    }
3071                }
3072
3073                let status_text = SharedString::from(status_text);
3074                Some(
3075                    div()
3076                        .id("update")
3077                        .tooltip(move |cx| Tooltip::text(status_text.clone(), cx))
3078                        .child(Icon::new(IconName::Update).color(Color::Info))
3079                        .into_any_element()
3080                )
3081            }
3082
3083            SemanticIndexStatus::Indexed {} => Some(
3084                div()
3085                    .id("check")
3086                    .tooltip(|cx| Tooltip::text("Index up to date", cx))
3087                    .child(Icon::new(IconName::Check).color(Color::Success))
3088                    .into_any_element()
3089            ),
3090        }
3091    }
3092
3093    fn toggle_include_conversation(
3094        &mut self,
3095        _: &ToggleIncludeConversation,
3096        cx: &mut ViewContext<Self>,
3097    ) {
3098        self.include_conversation = !self.include_conversation;
3099        cx.emit(InlineAssistantEvent::IncludeConversationToggled {
3100            include_conversation: self.include_conversation,
3101        });
3102        cx.notify();
3103    }
3104
3105    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3106        if let Some(ix) = self.prompt_history_ix {
3107            if ix > 0 {
3108                self.prompt_history_ix = Some(ix - 1);
3109                let prompt = self.prompt_history[ix - 1].clone();
3110                self.set_prompt(&prompt, cx);
3111            }
3112        } else if !self.prompt_history.is_empty() {
3113            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
3114            let prompt = self.prompt_history[self.prompt_history.len() - 1].clone();
3115            self.set_prompt(&prompt, cx);
3116        }
3117    }
3118
3119    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3120        if let Some(ix) = self.prompt_history_ix {
3121            if ix < self.prompt_history.len() - 1 {
3122                self.prompt_history_ix = Some(ix + 1);
3123                let prompt = self.prompt_history[ix + 1].clone();
3124                self.set_prompt(&prompt, cx);
3125            } else {
3126                self.prompt_history_ix = None;
3127                let pending_prompt = self.pending_prompt.clone();
3128                self.set_prompt(&pending_prompt, cx);
3129            }
3130        }
3131    }
3132
3133    fn set_prompt(&mut self, prompt: &str, cx: &mut ViewContext<Self>) {
3134        self.prompt_editor.update(cx, |editor, cx| {
3135            editor.buffer().update(cx, |buffer, cx| {
3136                let len = buffer.len(cx);
3137                buffer.edit([(0..len, prompt)], None, cx);
3138            });
3139        });
3140    }
3141
3142    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3143        let settings = ThemeSettings::get_global(cx);
3144        let text_style = TextStyle {
3145            color: if self.prompt_editor.read(cx).read_only(cx) {
3146                cx.theme().colors().text_disabled
3147            } else {
3148                cx.theme().colors().text
3149            },
3150            font_family: settings.ui_font.family.clone(),
3151            font_features: settings.ui_font.features,
3152            font_size: rems(0.875).into(),
3153            font_weight: FontWeight::NORMAL,
3154            font_style: FontStyle::Normal,
3155            line_height: relative(1.3).into(),
3156            background_color: None,
3157            underline: None,
3158            white_space: WhiteSpace::Normal,
3159        };
3160        EditorElement::new(
3161            &self.prompt_editor,
3162            EditorStyle {
3163                background: cx.theme().colors().editor_background,
3164                local_player: cx.theme().players().local(),
3165                text: text_style,
3166                ..Default::default()
3167            },
3168        )
3169    }
3170}
3171
3172// This wouldn't need to exist if we could pass parameters when rendering child views.
3173#[derive(Copy, Clone, Default)]
3174struct BlockMeasurements {
3175    anchor_x: Pixels,
3176    gutter_width: Pixels,
3177}
3178
3179struct PendingInlineAssist {
3180    editor: WeakView<Editor>,
3181    inline_assistant: Option<(BlockId, View<InlineAssistant>)>,
3182    codegen: Model<Codegen>,
3183    _subscriptions: Vec<Subscription>,
3184    project: WeakModel<Project>,
3185}
3186
3187fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3188    ranges.sort_unstable_by(|a, b| {
3189        a.start
3190            .cmp(&b.start, buffer)
3191            .then_with(|| b.end.cmp(&a.end, buffer))
3192    });
3193
3194    let mut ix = 0;
3195    while ix + 1 < ranges.len() {
3196        let b = ranges[ix + 1].clone();
3197        let a = &mut ranges[ix];
3198        if a.end.cmp(&b.start, buffer).is_gt() {
3199            if a.end.cmp(&b.end, buffer).is_lt() {
3200                a.end = b.end;
3201            }
3202            ranges.remove(ix + 1);
3203        } else {
3204            ix += 1;
3205        }
3206    }
3207}
3208
3209#[cfg(test)]
3210mod tests {
3211    use super::*;
3212    use crate::MessageId;
3213    use ai::test::FakeCompletionProvider;
3214    use gpui::{AppContext, TestAppContext};
3215    use settings::SettingsStore;
3216
3217    #[gpui::test]
3218    fn test_inserting_and_removing_messages(cx: &mut AppContext) {
3219        let settings_store = SettingsStore::test(cx);
3220        cx.set_global(settings_store);
3221        init(cx);
3222        let registry = Arc::new(LanguageRegistry::test());
3223
3224        let completion_provider = Arc::new(FakeCompletionProvider::new());
3225        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3226        let buffer = conversation.read(cx).buffer.clone();
3227
3228        let message_1 = conversation.read(cx).message_anchors[0].clone();
3229        assert_eq!(
3230            messages(&conversation, cx),
3231            vec![(message_1.id, Role::User, 0..0)]
3232        );
3233
3234        let message_2 = conversation.update(cx, |conversation, cx| {
3235            conversation
3236                .insert_message_after(message_1.id, Role::Assistant, MessageStatus::Done, cx)
3237                .unwrap()
3238        });
3239        assert_eq!(
3240            messages(&conversation, cx),
3241            vec![
3242                (message_1.id, Role::User, 0..1),
3243                (message_2.id, Role::Assistant, 1..1)
3244            ]
3245        );
3246
3247        buffer.update(cx, |buffer, cx| {
3248            buffer.edit([(0..0, "1"), (1..1, "2")], None, cx)
3249        });
3250        assert_eq!(
3251            messages(&conversation, cx),
3252            vec![
3253                (message_1.id, Role::User, 0..2),
3254                (message_2.id, Role::Assistant, 2..3)
3255            ]
3256        );
3257
3258        let message_3 = conversation.update(cx, |conversation, cx| {
3259            conversation
3260                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3261                .unwrap()
3262        });
3263        assert_eq!(
3264            messages(&conversation, cx),
3265            vec![
3266                (message_1.id, Role::User, 0..2),
3267                (message_2.id, Role::Assistant, 2..4),
3268                (message_3.id, Role::User, 4..4)
3269            ]
3270        );
3271
3272        let message_4 = conversation.update(cx, |conversation, cx| {
3273            conversation
3274                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3275                .unwrap()
3276        });
3277        assert_eq!(
3278            messages(&conversation, cx),
3279            vec![
3280                (message_1.id, Role::User, 0..2),
3281                (message_2.id, Role::Assistant, 2..4),
3282                (message_4.id, Role::User, 4..5),
3283                (message_3.id, Role::User, 5..5),
3284            ]
3285        );
3286
3287        buffer.update(cx, |buffer, cx| {
3288            buffer.edit([(4..4, "C"), (5..5, "D")], None, cx)
3289        });
3290        assert_eq!(
3291            messages(&conversation, cx),
3292            vec![
3293                (message_1.id, Role::User, 0..2),
3294                (message_2.id, Role::Assistant, 2..4),
3295                (message_4.id, Role::User, 4..6),
3296                (message_3.id, Role::User, 6..7),
3297            ]
3298        );
3299
3300        // Deleting across message boundaries merges the messages.
3301        buffer.update(cx, |buffer, cx| buffer.edit([(1..4, "")], None, cx));
3302        assert_eq!(
3303            messages(&conversation, cx),
3304            vec![
3305                (message_1.id, Role::User, 0..3),
3306                (message_3.id, Role::User, 3..4),
3307            ]
3308        );
3309
3310        // Undoing the deletion should also undo the merge.
3311        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3312        assert_eq!(
3313            messages(&conversation, cx),
3314            vec![
3315                (message_1.id, Role::User, 0..2),
3316                (message_2.id, Role::Assistant, 2..4),
3317                (message_4.id, Role::User, 4..6),
3318                (message_3.id, Role::User, 6..7),
3319            ]
3320        );
3321
3322        // Redoing the deletion should also redo the merge.
3323        buffer.update(cx, |buffer, cx| buffer.redo(cx));
3324        assert_eq!(
3325            messages(&conversation, cx),
3326            vec![
3327                (message_1.id, Role::User, 0..3),
3328                (message_3.id, Role::User, 3..4),
3329            ]
3330        );
3331
3332        // Ensure we can still insert after a merged message.
3333        let message_5 = conversation.update(cx, |conversation, cx| {
3334            conversation
3335                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3336                .unwrap()
3337        });
3338        assert_eq!(
3339            messages(&conversation, cx),
3340            vec![
3341                (message_1.id, Role::User, 0..3),
3342                (message_5.id, Role::System, 3..4),
3343                (message_3.id, Role::User, 4..5)
3344            ]
3345        );
3346    }
3347
3348    #[gpui::test]
3349    fn test_message_splitting(cx: &mut AppContext) {
3350        let settings_store = SettingsStore::test(cx);
3351        cx.set_global(settings_store);
3352        init(cx);
3353        let registry = Arc::new(LanguageRegistry::test());
3354        let completion_provider = Arc::new(FakeCompletionProvider::new());
3355
3356        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3357        let buffer = conversation.read(cx).buffer.clone();
3358
3359        let message_1 = conversation.read(cx).message_anchors[0].clone();
3360        assert_eq!(
3361            messages(&conversation, cx),
3362            vec![(message_1.id, Role::User, 0..0)]
3363        );
3364
3365        buffer.update(cx, |buffer, cx| {
3366            buffer.edit([(0..0, "aaa\nbbb\nccc\nddd\n")], None, cx)
3367        });
3368
3369        let (_, message_2) =
3370            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3371        let message_2 = message_2.unwrap();
3372
3373        // We recycle newlines in the middle of a split message
3374        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\nddd\n");
3375        assert_eq!(
3376            messages(&conversation, cx),
3377            vec![
3378                (message_1.id, Role::User, 0..4),
3379                (message_2.id, Role::User, 4..16),
3380            ]
3381        );
3382
3383        let (_, message_3) =
3384            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3385        let message_3 = message_3.unwrap();
3386
3387        // We don't recycle newlines at the end of a split message
3388        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3389        assert_eq!(
3390            messages(&conversation, cx),
3391            vec![
3392                (message_1.id, Role::User, 0..4),
3393                (message_3.id, Role::User, 4..5),
3394                (message_2.id, Role::User, 5..17),
3395            ]
3396        );
3397
3398        let (_, message_4) =
3399            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3400        let message_4 = message_4.unwrap();
3401        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3402        assert_eq!(
3403            messages(&conversation, cx),
3404            vec![
3405                (message_1.id, Role::User, 0..4),
3406                (message_3.id, Role::User, 4..5),
3407                (message_2.id, Role::User, 5..9),
3408                (message_4.id, Role::User, 9..17),
3409            ]
3410        );
3411
3412        let (_, message_5) =
3413            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3414        let message_5 = message_5.unwrap();
3415        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\nddd\n");
3416        assert_eq!(
3417            messages(&conversation, cx),
3418            vec![
3419                (message_1.id, Role::User, 0..4),
3420                (message_3.id, Role::User, 4..5),
3421                (message_2.id, Role::User, 5..9),
3422                (message_4.id, Role::User, 9..10),
3423                (message_5.id, Role::User, 10..18),
3424            ]
3425        );
3426
3427        let (message_6, message_7) = conversation.update(cx, |conversation, cx| {
3428            conversation.split_message(14..16, cx)
3429        });
3430        let message_6 = message_6.unwrap();
3431        let message_7 = message_7.unwrap();
3432        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\ndd\nd\n");
3433        assert_eq!(
3434            messages(&conversation, cx),
3435            vec![
3436                (message_1.id, Role::User, 0..4),
3437                (message_3.id, Role::User, 4..5),
3438                (message_2.id, Role::User, 5..9),
3439                (message_4.id, Role::User, 9..10),
3440                (message_5.id, Role::User, 10..14),
3441                (message_6.id, Role::User, 14..17),
3442                (message_7.id, Role::User, 17..19),
3443            ]
3444        );
3445    }
3446
3447    #[gpui::test]
3448    fn test_messages_for_offsets(cx: &mut AppContext) {
3449        let settings_store = SettingsStore::test(cx);
3450        cx.set_global(settings_store);
3451        init(cx);
3452        let registry = Arc::new(LanguageRegistry::test());
3453        let completion_provider = Arc::new(FakeCompletionProvider::new());
3454        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3455        let buffer = conversation.read(cx).buffer.clone();
3456
3457        let message_1 = conversation.read(cx).message_anchors[0].clone();
3458        assert_eq!(
3459            messages(&conversation, cx),
3460            vec![(message_1.id, Role::User, 0..0)]
3461        );
3462
3463        buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "aaa")], None, cx));
3464        let message_2 = conversation
3465            .update(cx, |conversation, cx| {
3466                conversation.insert_message_after(message_1.id, Role::User, MessageStatus::Done, cx)
3467            })
3468            .unwrap();
3469        buffer.update(cx, |buffer, cx| buffer.edit([(4..4, "bbb")], None, cx));
3470
3471        let message_3 = conversation
3472            .update(cx, |conversation, cx| {
3473                conversation.insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3474            })
3475            .unwrap();
3476        buffer.update(cx, |buffer, cx| buffer.edit([(8..8, "ccc")], None, cx));
3477
3478        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc");
3479        assert_eq!(
3480            messages(&conversation, cx),
3481            vec![
3482                (message_1.id, Role::User, 0..4),
3483                (message_2.id, Role::User, 4..8),
3484                (message_3.id, Role::User, 8..11)
3485            ]
3486        );
3487
3488        assert_eq!(
3489            message_ids_for_offsets(&conversation, &[0, 4, 9], cx),
3490            [message_1.id, message_2.id, message_3.id]
3491        );
3492        assert_eq!(
3493            message_ids_for_offsets(&conversation, &[0, 1, 11], cx),
3494            [message_1.id, message_3.id]
3495        );
3496
3497        let message_4 = conversation
3498            .update(cx, |conversation, cx| {
3499                conversation.insert_message_after(message_3.id, Role::User, MessageStatus::Done, cx)
3500            })
3501            .unwrap();
3502        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\n");
3503        assert_eq!(
3504            messages(&conversation, cx),
3505            vec![
3506                (message_1.id, Role::User, 0..4),
3507                (message_2.id, Role::User, 4..8),
3508                (message_3.id, Role::User, 8..12),
3509                (message_4.id, Role::User, 12..12)
3510            ]
3511        );
3512        assert_eq!(
3513            message_ids_for_offsets(&conversation, &[0, 4, 8, 12], cx),
3514            [message_1.id, message_2.id, message_3.id, message_4.id]
3515        );
3516
3517        fn message_ids_for_offsets(
3518            conversation: &Model<Conversation>,
3519            offsets: &[usize],
3520            cx: &AppContext,
3521        ) -> Vec<MessageId> {
3522            conversation
3523                .read(cx)
3524                .messages_for_offsets(offsets.iter().copied(), cx)
3525                .into_iter()
3526                .map(|message| message.id)
3527                .collect()
3528        }
3529    }
3530
3531    #[gpui::test]
3532    async fn test_serialization(cx: &mut TestAppContext) {
3533        let settings_store = cx.update(SettingsStore::test);
3534        cx.set_global(settings_store);
3535        cx.update(init);
3536        let registry = Arc::new(LanguageRegistry::test());
3537        let completion_provider = Arc::new(FakeCompletionProvider::new());
3538        let conversation =
3539            cx.new_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
3540        let buffer = conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3541        let message_0 =
3542            conversation.read_with(cx, |conversation, _| conversation.message_anchors[0].id);
3543        let message_1 = conversation.update(cx, |conversation, cx| {
3544            conversation
3545                .insert_message_after(message_0, Role::Assistant, MessageStatus::Done, cx)
3546                .unwrap()
3547        });
3548        let message_2 = conversation.update(cx, |conversation, cx| {
3549            conversation
3550                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3551                .unwrap()
3552        });
3553        buffer.update(cx, |buffer, cx| {
3554            buffer.edit([(0..0, "a"), (1..1, "b\nc")], None, cx);
3555            buffer.finalize_last_transaction();
3556        });
3557        let _message_3 = conversation.update(cx, |conversation, cx| {
3558            conversation
3559                .insert_message_after(message_2.id, Role::System, MessageStatus::Done, cx)
3560                .unwrap()
3561        });
3562        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3563        assert_eq!(buffer.read_with(cx, |buffer, _| buffer.text()), "a\nb\nc\n");
3564        assert_eq!(
3565            cx.read(|cx| messages(&conversation, cx)),
3566            [
3567                (message_0, Role::User, 0..2),
3568                (message_1.id, Role::Assistant, 2..6),
3569                (message_2.id, Role::System, 6..6),
3570            ]
3571        );
3572
3573        let deserialized_conversation = Conversation::deserialize(
3574            conversation.read_with(cx, |conversation, cx| conversation.serialize(cx)),
3575            Default::default(),
3576            registry.clone(),
3577            &mut cx.to_async(),
3578        )
3579        .await
3580        .unwrap();
3581        let deserialized_buffer =
3582            deserialized_conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3583        assert_eq!(
3584            deserialized_buffer.read_with(cx, |buffer, _| buffer.text()),
3585            "a\nb\nc\n"
3586        );
3587        assert_eq!(
3588            cx.read(|cx| messages(&deserialized_conversation, cx)),
3589            [
3590                (message_0, Role::User, 0..2),
3591                (message_1.id, Role::Assistant, 2..6),
3592                (message_2.id, Role::System, 6..6),
3593            ]
3594        );
3595    }
3596
3597    fn messages(
3598        conversation: &Model<Conversation>,
3599        cx: &AppContext,
3600    ) -> Vec<(MessageId, Role, Range<usize>)> {
3601        conversation
3602            .read(cx)
3603            .messages(cx)
3604            .map(|message| (message.id, message.role, message.offset_range))
3605            .collect()
3606    }
3607}
3608
3609fn report_assistant_event(
3610    workspace: WeakView<Workspace>,
3611    conversation_id: Option<String>,
3612    assistant_kind: AssistantKind,
3613    cx: &AppContext,
3614) {
3615    let Some(workspace) = workspace.upgrade() else {
3616        return;
3617    };
3618
3619    let client = workspace.read(cx).project().read(cx).client();
3620    let telemetry = client.telemetry();
3621
3622    let model = AssistantSettings::get_global(cx)
3623        .default_open_ai_model
3624        .clone();
3625
3626    telemetry.report_assistant_event(conversation_id, assistant_kind, model.full_name())
3627}