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, 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, cx.entity_id().as_u64(), "");
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(0, cx.entity_id().as_u64(), saved_conversation.text);
1519            for message in saved_conversation.messages {
1520                message_anchors.push(MessageAnchor {
1521                    id: message.id,
1522                    start: buffer.anchor_before(message.start),
1523                });
1524                next_message_id = cmp::max(next_message_id, MessageId(message.id.0 + 1));
1525            }
1526            buffer.set_language_registry(language_registry);
1527            cx.spawn(|buffer, mut cx| async move {
1528                let markdown = markdown.await?;
1529                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1530                    buffer.set_language(Some(markdown), cx)
1531                })?;
1532                anyhow::Ok(())
1533            })
1534            .detach_and_log_err(cx);
1535            buffer
1536        })?;
1537
1538        cx.new_model(|cx| {
1539            let mut this = Self {
1540                id,
1541                message_anchors,
1542                messages_metadata: saved_conversation.message_metadata,
1543                next_message_id,
1544                summary: Some(Summary {
1545                    text: saved_conversation.summary,
1546                    done: true,
1547                }),
1548                pending_summary: Task::ready(None),
1549                completion_count: Default::default(),
1550                pending_completions: Default::default(),
1551                token_count: None,
1552                max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1553                pending_token_count: Task::ready(None),
1554                model,
1555                _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1556                pending_save: Task::ready(Ok(())),
1557                path: Some(path),
1558                buffer,
1559                completion_provider,
1560            };
1561            this.count_remaining_tokens(cx);
1562            this
1563        })
1564    }
1565
1566    fn handle_buffer_event(
1567        &mut self,
1568        _: Model<Buffer>,
1569        event: &language::Event,
1570        cx: &mut ModelContext<Self>,
1571    ) {
1572        match event {
1573            language::Event::Edited => {
1574                self.count_remaining_tokens(cx);
1575                cx.emit(ConversationEvent::MessagesEdited);
1576            }
1577            _ => {}
1578        }
1579    }
1580
1581    fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
1582        let messages = self
1583            .messages(cx)
1584            .into_iter()
1585            .filter_map(|message| {
1586                Some(tiktoken_rs::ChatCompletionRequestMessage {
1587                    role: match message.role {
1588                        Role::User => "user".into(),
1589                        Role::Assistant => "assistant".into(),
1590                        Role::System => "system".into(),
1591                    },
1592                    content: Some(
1593                        self.buffer
1594                            .read(cx)
1595                            .text_for_range(message.offset_range)
1596                            .collect(),
1597                    ),
1598                    name: None,
1599                    function_call: None,
1600                })
1601            })
1602            .collect::<Vec<_>>();
1603        let model = self.model.clone();
1604        self.pending_token_count = cx.spawn(|this, mut cx| {
1605            async move {
1606                cx.background_executor()
1607                    .timer(Duration::from_millis(200))
1608                    .await;
1609                let token_count = cx
1610                    .background_executor()
1611                    .spawn(async move {
1612                        tiktoken_rs::num_tokens_from_messages(&model.full_name(), &messages)
1613                    })
1614                    .await?;
1615
1616                this.update(&mut cx, |this, cx| {
1617                    this.max_token_count =
1618                        tiktoken_rs::model::get_context_size(&this.model.full_name());
1619                    this.token_count = Some(token_count);
1620                    cx.notify()
1621                })?;
1622                anyhow::Ok(())
1623            }
1624            .log_err()
1625        });
1626    }
1627
1628    fn remaining_tokens(&self) -> Option<isize> {
1629        Some(self.max_token_count as isize - self.token_count? as isize)
1630    }
1631
1632    fn set_model(&mut self, model: OpenAiModel, cx: &mut ModelContext<Self>) {
1633        self.model = model;
1634        self.count_remaining_tokens(cx);
1635        cx.notify();
1636    }
1637
1638    fn assist(
1639        &mut self,
1640        selected_messages: HashSet<MessageId>,
1641        cx: &mut ModelContext<Self>,
1642    ) -> Vec<MessageAnchor> {
1643        let mut user_messages = Vec::new();
1644
1645        let last_message_id = if let Some(last_message_id) =
1646            self.message_anchors.iter().rev().find_map(|message| {
1647                message
1648                    .start
1649                    .is_valid(self.buffer.read(cx))
1650                    .then_some(message.id)
1651            }) {
1652            last_message_id
1653        } else {
1654            return Default::default();
1655        };
1656
1657        let mut should_assist = false;
1658        for selected_message_id in selected_messages {
1659            let selected_message_role =
1660                if let Some(metadata) = self.messages_metadata.get(&selected_message_id) {
1661                    metadata.role
1662                } else {
1663                    continue;
1664                };
1665
1666            if selected_message_role == Role::Assistant {
1667                if let Some(user_message) = self.insert_message_after(
1668                    selected_message_id,
1669                    Role::User,
1670                    MessageStatus::Done,
1671                    cx,
1672                ) {
1673                    user_messages.push(user_message);
1674                }
1675            } else {
1676                should_assist = true;
1677            }
1678        }
1679
1680        if should_assist {
1681            if !self.completion_provider.has_credentials() {
1682                log::info!("completion provider has no credentials");
1683                return Default::default();
1684            }
1685
1686            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1687                model: self.model.full_name().to_string(),
1688                messages: self
1689                    .messages(cx)
1690                    .filter(|message| matches!(message.status, MessageStatus::Done))
1691                    .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1692                    .collect(),
1693                stream: true,
1694                stop: vec![],
1695                temperature: 1.0,
1696            });
1697
1698            let stream = self.completion_provider.complete(request);
1699            let assistant_message = self
1700                .insert_message_after(last_message_id, Role::Assistant, MessageStatus::Pending, cx)
1701                .unwrap();
1702
1703            // Queue up the user's next reply.
1704            let user_message = self
1705                .insert_message_after(assistant_message.id, Role::User, MessageStatus::Done, cx)
1706                .unwrap();
1707            user_messages.push(user_message);
1708
1709            let task = cx.spawn({
1710                |this, mut cx| async move {
1711                    let assistant_message_id = assistant_message.id;
1712                    let stream_completion = async {
1713                        let mut messages = stream.await?;
1714
1715                        while let Some(message) = messages.next().await {
1716                            let text = message?;
1717
1718                            this.update(&mut cx, |this, cx| {
1719                                let message_ix = this
1720                                    .message_anchors
1721                                    .iter()
1722                                    .position(|message| message.id == assistant_message_id)?;
1723                                this.buffer.update(cx, |buffer, cx| {
1724                                    let offset = this.message_anchors[message_ix + 1..]
1725                                        .iter()
1726                                        .find(|message| message.start.is_valid(buffer))
1727                                        .map_or(buffer.len(), |message| {
1728                                            message.start.to_offset(buffer).saturating_sub(1)
1729                                        });
1730                                    buffer.edit([(offset..offset, text)], None, cx);
1731                                });
1732                                cx.emit(ConversationEvent::StreamedCompletion);
1733
1734                                Some(())
1735                            })?;
1736                            smol::future::yield_now().await;
1737                        }
1738
1739                        this.update(&mut cx, |this, cx| {
1740                            this.pending_completions
1741                                .retain(|completion| completion.id != this.completion_count);
1742                            this.summarize(cx);
1743                        })?;
1744
1745                        anyhow::Ok(())
1746                    };
1747
1748                    let result = stream_completion.await;
1749
1750                    this.update(&mut cx, |this, cx| {
1751                        if let Some(metadata) =
1752                            this.messages_metadata.get_mut(&assistant_message.id)
1753                        {
1754                            match result {
1755                                Ok(_) => {
1756                                    metadata.status = MessageStatus::Done;
1757                                }
1758                                Err(error) => {
1759                                    metadata.status = MessageStatus::Error(SharedString::from(
1760                                        error.to_string().trim().to_string(),
1761                                    ));
1762                                }
1763                            }
1764                            cx.notify();
1765                        }
1766                    })
1767                    .ok();
1768                }
1769            });
1770
1771            self.pending_completions.push(PendingCompletion {
1772                id: post_inc(&mut self.completion_count),
1773                _task: task,
1774            });
1775        }
1776
1777        user_messages
1778    }
1779
1780    fn cancel_last_assist(&mut self) -> bool {
1781        self.pending_completions.pop().is_some()
1782    }
1783
1784    fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
1785        for id in ids {
1786            if let Some(metadata) = self.messages_metadata.get_mut(&id) {
1787                metadata.role.cycle();
1788                cx.emit(ConversationEvent::MessagesEdited);
1789                cx.notify();
1790            }
1791        }
1792    }
1793
1794    fn insert_message_after(
1795        &mut self,
1796        message_id: MessageId,
1797        role: Role,
1798        status: MessageStatus,
1799        cx: &mut ModelContext<Self>,
1800    ) -> Option<MessageAnchor> {
1801        if let Some(prev_message_ix) = self
1802            .message_anchors
1803            .iter()
1804            .position(|message| message.id == message_id)
1805        {
1806            // Find the next valid message after the one we were given.
1807            let mut next_message_ix = prev_message_ix + 1;
1808            while let Some(next_message) = self.message_anchors.get(next_message_ix) {
1809                if next_message.start.is_valid(self.buffer.read(cx)) {
1810                    break;
1811                }
1812                next_message_ix += 1;
1813            }
1814
1815            let start = self.buffer.update(cx, |buffer, cx| {
1816                let offset = self
1817                    .message_anchors
1818                    .get(next_message_ix)
1819                    .map_or(buffer.len(), |message| message.start.to_offset(buffer) - 1);
1820                buffer.edit([(offset..offset, "\n")], None, cx);
1821                buffer.anchor_before(offset + 1)
1822            });
1823            let message = MessageAnchor {
1824                id: MessageId(post_inc(&mut self.next_message_id.0)),
1825                start,
1826            };
1827            self.message_anchors
1828                .insert(next_message_ix, message.clone());
1829            self.messages_metadata.insert(
1830                message.id,
1831                MessageMetadata {
1832                    role,
1833                    sent_at: Local::now(),
1834                    status,
1835                },
1836            );
1837            cx.emit(ConversationEvent::MessagesEdited);
1838            Some(message)
1839        } else {
1840            None
1841        }
1842    }
1843
1844    fn split_message(
1845        &mut self,
1846        range: Range<usize>,
1847        cx: &mut ModelContext<Self>,
1848    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
1849        let start_message = self.message_for_offset(range.start, cx);
1850        let end_message = self.message_for_offset(range.end, cx);
1851        if let Some((start_message, end_message)) = start_message.zip(end_message) {
1852            // Prevent splitting when range spans multiple messages.
1853            if start_message.id != end_message.id {
1854                return (None, None);
1855            }
1856
1857            let message = start_message;
1858            let role = message.role;
1859            let mut edited_buffer = false;
1860
1861            let mut suffix_start = None;
1862            if range.start > message.offset_range.start && range.end < message.offset_range.end - 1
1863            {
1864                if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
1865                    suffix_start = Some(range.end + 1);
1866                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
1867                    suffix_start = Some(range.end);
1868                }
1869            }
1870
1871            let suffix = if let Some(suffix_start) = suffix_start {
1872                MessageAnchor {
1873                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1874                    start: self.buffer.read(cx).anchor_before(suffix_start),
1875                }
1876            } else {
1877                self.buffer.update(cx, |buffer, cx| {
1878                    buffer.edit([(range.end..range.end, "\n")], None, cx);
1879                });
1880                edited_buffer = true;
1881                MessageAnchor {
1882                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1883                    start: self.buffer.read(cx).anchor_before(range.end + 1),
1884                }
1885            };
1886
1887            self.message_anchors
1888                .insert(message.index_range.end + 1, suffix.clone());
1889            self.messages_metadata.insert(
1890                suffix.id,
1891                MessageMetadata {
1892                    role,
1893                    sent_at: Local::now(),
1894                    status: MessageStatus::Done,
1895                },
1896            );
1897
1898            let new_messages =
1899                if range.start == range.end || range.start == message.offset_range.start {
1900                    (None, Some(suffix))
1901                } else {
1902                    let mut prefix_end = None;
1903                    if range.start > message.offset_range.start
1904                        && range.end < message.offset_range.end - 1
1905                    {
1906                        if self.buffer.read(cx).chars_at(range.start).next() == Some('\n') {
1907                            prefix_end = Some(range.start + 1);
1908                        } else if self.buffer.read(cx).reversed_chars_at(range.start).next()
1909                            == Some('\n')
1910                        {
1911                            prefix_end = Some(range.start);
1912                        }
1913                    }
1914
1915                    let selection = if let Some(prefix_end) = prefix_end {
1916                        cx.emit(ConversationEvent::MessagesEdited);
1917                        MessageAnchor {
1918                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1919                            start: self.buffer.read(cx).anchor_before(prefix_end),
1920                        }
1921                    } else {
1922                        self.buffer.update(cx, |buffer, cx| {
1923                            buffer.edit([(range.start..range.start, "\n")], None, cx)
1924                        });
1925                        edited_buffer = true;
1926                        MessageAnchor {
1927                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1928                            start: self.buffer.read(cx).anchor_before(range.end + 1),
1929                        }
1930                    };
1931
1932                    self.message_anchors
1933                        .insert(message.index_range.end + 1, selection.clone());
1934                    self.messages_metadata.insert(
1935                        selection.id,
1936                        MessageMetadata {
1937                            role,
1938                            sent_at: Local::now(),
1939                            status: MessageStatus::Done,
1940                        },
1941                    );
1942                    (Some(selection), Some(suffix))
1943                };
1944
1945            if !edited_buffer {
1946                cx.emit(ConversationEvent::MessagesEdited);
1947            }
1948            new_messages
1949        } else {
1950            (None, None)
1951        }
1952    }
1953
1954    fn summarize(&mut self, cx: &mut ModelContext<Self>) {
1955        if self.message_anchors.len() >= 2 && self.summary.is_none() {
1956            if !self.completion_provider.has_credentials() {
1957                return;
1958            }
1959
1960            let messages = self
1961                .messages(cx)
1962                .take(2)
1963                .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1964                .chain(Some(RequestMessage {
1965                    role: Role::User,
1966                    content: "Summarize the conversation into a short title without punctuation"
1967                        .into(),
1968                }));
1969            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1970                model: self.model.full_name().to_string(),
1971                messages: messages.collect(),
1972                stream: true,
1973                stop: vec![],
1974                temperature: 1.0,
1975            });
1976
1977            let stream = self.completion_provider.complete(request);
1978            self.pending_summary = cx.spawn(|this, mut cx| {
1979                async move {
1980                    let mut messages = stream.await?;
1981
1982                    while let Some(message) = messages.next().await {
1983                        let text = message?;
1984                        this.update(&mut cx, |this, cx| {
1985                            this.summary
1986                                .get_or_insert(Default::default())
1987                                .text
1988                                .push_str(&text);
1989                            cx.emit(ConversationEvent::SummaryChanged);
1990                        })?;
1991                    }
1992
1993                    this.update(&mut cx, |this, cx| {
1994                        if let Some(summary) = this.summary.as_mut() {
1995                            summary.done = true;
1996                            cx.emit(ConversationEvent::SummaryChanged);
1997                        }
1998                    })?;
1999
2000                    anyhow::Ok(())
2001                }
2002                .log_err()
2003            });
2004        }
2005    }
2006
2007    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
2008        self.messages_for_offsets([offset], cx).pop()
2009    }
2010
2011    fn messages_for_offsets(
2012        &self,
2013        offsets: impl IntoIterator<Item = usize>,
2014        cx: &AppContext,
2015    ) -> Vec<Message> {
2016        let mut result = Vec::new();
2017
2018        let mut messages = self.messages(cx).peekable();
2019        let mut offsets = offsets.into_iter().peekable();
2020        let mut current_message = messages.next();
2021        while let Some(offset) = offsets.next() {
2022            // Locate the message that contains the offset.
2023            while current_message.as_ref().map_or(false, |message| {
2024                !message.offset_range.contains(&offset) && messages.peek().is_some()
2025            }) {
2026                current_message = messages.next();
2027            }
2028            let Some(message) = current_message.as_ref() else {
2029                break;
2030            };
2031
2032            // Skip offsets that are in the same message.
2033            while offsets.peek().map_or(false, |offset| {
2034                message.offset_range.contains(offset) || messages.peek().is_none()
2035            }) {
2036                offsets.next();
2037            }
2038
2039            result.push(message.clone());
2040        }
2041        result
2042    }
2043
2044    fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
2045        let buffer = self.buffer.read(cx);
2046        let mut message_anchors = self.message_anchors.iter().enumerate().peekable();
2047        iter::from_fn(move || {
2048            while let Some((start_ix, message_anchor)) = message_anchors.next() {
2049                let metadata = self.messages_metadata.get(&message_anchor.id)?;
2050                let message_start = message_anchor.start.to_offset(buffer);
2051                let mut message_end = None;
2052                let mut end_ix = start_ix;
2053                while let Some((_, next_message)) = message_anchors.peek() {
2054                    if next_message.start.is_valid(buffer) {
2055                        message_end = Some(next_message.start);
2056                        break;
2057                    } else {
2058                        end_ix += 1;
2059                        message_anchors.next();
2060                    }
2061                }
2062                let message_end = message_end
2063                    .unwrap_or(language::Anchor::MAX)
2064                    .to_offset(buffer);
2065                return Some(Message {
2066                    index_range: start_ix..end_ix,
2067                    offset_range: message_start..message_end,
2068                    id: message_anchor.id,
2069                    anchor: message_anchor.start,
2070                    role: metadata.role,
2071                    sent_at: metadata.sent_at,
2072                    status: metadata.status.clone(),
2073                });
2074            }
2075            None
2076        })
2077    }
2078
2079    fn save(
2080        &mut self,
2081        debounce: Option<Duration>,
2082        fs: Arc<dyn Fs>,
2083        cx: &mut ModelContext<Conversation>,
2084    ) {
2085        self.pending_save = cx.spawn(|this, mut cx| async move {
2086            if let Some(debounce) = debounce {
2087                cx.background_executor().timer(debounce).await;
2088            }
2089
2090            let (old_path, summary) = this.read_with(&cx, |this, _| {
2091                let path = this.path.clone();
2092                let summary = if let Some(summary) = this.summary.as_ref() {
2093                    if summary.done {
2094                        Some(summary.text.clone())
2095                    } else {
2096                        None
2097                    }
2098                } else {
2099                    None
2100                };
2101                (path, summary)
2102            })?;
2103
2104            if let Some(summary) = summary {
2105                let conversation = this.read_with(&cx, |this, cx| this.serialize(cx))?;
2106                let path = if let Some(old_path) = old_path {
2107                    old_path
2108                } else {
2109                    let mut discriminant = 1;
2110                    let mut new_path;
2111                    loop {
2112                        new_path = CONVERSATIONS_DIR.join(&format!(
2113                            "{} - {}.zed.json",
2114                            summary.trim(),
2115                            discriminant
2116                        ));
2117                        if fs.is_file(&new_path).await {
2118                            discriminant += 1;
2119                        } else {
2120                            break;
2121                        }
2122                    }
2123                    new_path
2124                };
2125
2126                fs.create_dir(CONVERSATIONS_DIR.as_ref()).await?;
2127                fs.atomic_write(path.clone(), serde_json::to_string(&conversation).unwrap())
2128                    .await?;
2129                this.update(&mut cx, |this, _| this.path = Some(path))?;
2130            }
2131
2132            Ok(())
2133        });
2134    }
2135}
2136
2137struct PendingCompletion {
2138    id: usize,
2139    _task: Task<()>,
2140}
2141
2142enum ConversationEditorEvent {
2143    TabContentChanged,
2144}
2145
2146#[derive(Copy, Clone, Debug, PartialEq)]
2147struct ScrollPosition {
2148    offset_before_cursor: gpui::Point<f32>,
2149    cursor: Anchor,
2150}
2151
2152struct ConversationEditor {
2153    conversation: Model<Conversation>,
2154    fs: Arc<dyn Fs>,
2155    workspace: WeakView<Workspace>,
2156    editor: View<Editor>,
2157    blocks: HashSet<BlockId>,
2158    scroll_position: Option<ScrollPosition>,
2159    _subscriptions: Vec<Subscription>,
2160}
2161
2162impl ConversationEditor {
2163    fn new(
2164        completion_provider: Arc<dyn CompletionProvider>,
2165        language_registry: Arc<LanguageRegistry>,
2166        fs: Arc<dyn Fs>,
2167        workspace: WeakView<Workspace>,
2168        cx: &mut ViewContext<Self>,
2169    ) -> Self {
2170        let conversation =
2171            cx.new_model(|cx| Conversation::new(language_registry, cx, completion_provider));
2172        Self::for_conversation(conversation, fs, workspace, cx)
2173    }
2174
2175    fn for_conversation(
2176        conversation: Model<Conversation>,
2177        fs: Arc<dyn Fs>,
2178        workspace: WeakView<Workspace>,
2179        cx: &mut ViewContext<Self>,
2180    ) -> Self {
2181        let editor = cx.new_view(|cx| {
2182            let mut editor = Editor::for_buffer(conversation.read(cx).buffer.clone(), None, cx);
2183            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
2184            editor.set_show_gutter(false, cx);
2185            editor.set_show_wrap_guides(false, cx);
2186            editor
2187        });
2188
2189        let _subscriptions = vec![
2190            cx.observe(&conversation, |_, _, cx| cx.notify()),
2191            cx.subscribe(&conversation, Self::handle_conversation_event),
2192            cx.subscribe(&editor, Self::handle_editor_event),
2193        ];
2194
2195        let mut this = Self {
2196            conversation,
2197            editor,
2198            blocks: Default::default(),
2199            scroll_position: None,
2200            fs,
2201            workspace,
2202            _subscriptions,
2203        };
2204        this.update_message_headers(cx);
2205        this
2206    }
2207
2208    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
2209        report_assistant_event(
2210            self.workspace.clone(),
2211            self.conversation.read(cx).id.clone(),
2212            AssistantKind::Panel,
2213            cx,
2214        );
2215
2216        let cursors = self.cursors(cx);
2217
2218        let user_messages = self.conversation.update(cx, |conversation, cx| {
2219            let selected_messages = conversation
2220                .messages_for_offsets(cursors, cx)
2221                .into_iter()
2222                .map(|message| message.id)
2223                .collect();
2224            conversation.assist(selected_messages, cx)
2225        });
2226        let new_selections = user_messages
2227            .iter()
2228            .map(|message| {
2229                let cursor = message
2230                    .start
2231                    .to_offset(self.conversation.read(cx).buffer.read(cx));
2232                cursor..cursor
2233            })
2234            .collect::<Vec<_>>();
2235        if !new_selections.is_empty() {
2236            self.editor.update(cx, |editor, cx| {
2237                editor.change_selections(
2238                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
2239                    cx,
2240                    |selections| selections.select_ranges(new_selections),
2241                );
2242            });
2243            // Avoid scrolling to the new cursor position so the assistant's output is stable.
2244            cx.defer(|this, _| this.scroll_position = None);
2245        }
2246    }
2247
2248    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2249        if !self
2250            .conversation
2251            .update(cx, |conversation, _| conversation.cancel_last_assist())
2252        {
2253            cx.propagate();
2254        }
2255    }
2256
2257    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
2258        let cursors = self.cursors(cx);
2259        self.conversation.update(cx, |conversation, cx| {
2260            let messages = conversation
2261                .messages_for_offsets(cursors, cx)
2262                .into_iter()
2263                .map(|message| message.id)
2264                .collect();
2265            conversation.cycle_message_roles(messages, cx)
2266        });
2267    }
2268
2269    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
2270        let selections = self.editor.read(cx).selections.all::<usize>(cx);
2271        selections
2272            .into_iter()
2273            .map(|selection| selection.head())
2274            .collect()
2275    }
2276
2277    fn handle_conversation_event(
2278        &mut self,
2279        _: Model<Conversation>,
2280        event: &ConversationEvent,
2281        cx: &mut ViewContext<Self>,
2282    ) {
2283        match event {
2284            ConversationEvent::MessagesEdited => {
2285                self.update_message_headers(cx);
2286                self.conversation.update(cx, |conversation, cx| {
2287                    conversation.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
2288                });
2289            }
2290            ConversationEvent::SummaryChanged => {
2291                cx.emit(ConversationEditorEvent::TabContentChanged);
2292                self.conversation.update(cx, |conversation, cx| {
2293                    conversation.save(None, self.fs.clone(), cx);
2294                });
2295            }
2296            ConversationEvent::StreamedCompletion => {
2297                self.editor.update(cx, |editor, cx| {
2298                    if let Some(scroll_position) = self.scroll_position {
2299                        let snapshot = editor.snapshot(cx);
2300                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
2301                        let scroll_top =
2302                            cursor_point.row() as f32 - scroll_position.offset_before_cursor.y;
2303                        editor.set_scroll_position(
2304                            point(scroll_position.offset_before_cursor.x, scroll_top),
2305                            cx,
2306                        );
2307                    }
2308                });
2309            }
2310        }
2311    }
2312
2313    fn handle_editor_event(
2314        &mut self,
2315        _: View<Editor>,
2316        event: &EditorEvent,
2317        cx: &mut ViewContext<Self>,
2318    ) {
2319        match event {
2320            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
2321                let cursor_scroll_position = self.cursor_scroll_position(cx);
2322                if *autoscroll {
2323                    self.scroll_position = cursor_scroll_position;
2324                } else if self.scroll_position != cursor_scroll_position {
2325                    self.scroll_position = None;
2326                }
2327            }
2328            EditorEvent::SelectionsChanged { .. } => {
2329                self.scroll_position = self.cursor_scroll_position(cx);
2330            }
2331            _ => {}
2332        }
2333    }
2334
2335    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2336        self.editor.update(cx, |editor, cx| {
2337            let snapshot = editor.snapshot(cx);
2338            let cursor = editor.selections.newest_anchor().head();
2339            let cursor_row = cursor.to_display_point(&snapshot.display_snapshot).row() as f32;
2340            let scroll_position = editor
2341                .scroll_manager
2342                .anchor()
2343                .scroll_position(&snapshot.display_snapshot);
2344
2345            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2346            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2347                Some(ScrollPosition {
2348                    cursor,
2349                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2350                })
2351            } else {
2352                None
2353            }
2354        })
2355    }
2356
2357    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2358        self.editor.update(cx, |editor, cx| {
2359            let buffer = editor.buffer().read(cx).snapshot(cx);
2360            let excerpt_id = *buffer.as_singleton().unwrap().0;
2361            let old_blocks = std::mem::take(&mut self.blocks);
2362            let new_blocks = self
2363                .conversation
2364                .read(cx)
2365                .messages(cx)
2366                .map(|message| BlockProperties {
2367                    position: buffer.anchor_in_excerpt(excerpt_id, message.anchor),
2368                    height: 2,
2369                    style: BlockStyle::Sticky,
2370                    render: Arc::new({
2371                        let conversation = self.conversation.clone();
2372                        move |_cx| {
2373                            let message_id = message.id;
2374                            let sender = ButtonLike::new("role")
2375                                .style(ButtonStyle::Filled)
2376                                .child(match message.role {
2377                                    Role::User => Label::new("You").color(Color::Default),
2378                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2379                                    Role::System => Label::new("System").color(Color::Warning),
2380                                })
2381                                .tooltip(|cx| {
2382                                    Tooltip::with_meta(
2383                                        "Toggle message role",
2384                                        None,
2385                                        "Available roles: You (User), Assistant, System",
2386                                        cx,
2387                                    )
2388                                })
2389                                .on_click({
2390                                    let conversation = conversation.clone();
2391                                    move |_, cx| {
2392                                        conversation.update(cx, |conversation, cx| {
2393                                            conversation.cycle_message_roles(
2394                                                HashSet::from_iter(Some(message_id)),
2395                                                cx,
2396                                            )
2397                                        })
2398                                    }
2399                                });
2400
2401                            h_flex()
2402                                .id(("message_header", message_id.0))
2403                                .h_11()
2404                                .relative()
2405                                .gap_1()
2406                                .child(sender)
2407                                // TODO: Only show this if the message if the message has been sent
2408                                .child(
2409                                    Label::new(
2410                                        FormatDistance::from_now(DateTimeType::Local(
2411                                            message.sent_at,
2412                                        ))
2413                                        .hide_prefix(true)
2414                                        .add_suffix(true)
2415                                        .to_string(),
2416                                    )
2417                                    .size(LabelSize::XSmall)
2418                                    .color(Color::Muted),
2419                                )
2420                                .children(
2421                                    if let MessageStatus::Error(error) = message.status.clone() {
2422                                        Some(
2423                                            div()
2424                                                .id("error")
2425                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2426                                                .child(Icon::new(IconName::XCircle)),
2427                                        )
2428                                    } else {
2429                                        None
2430                                    },
2431                                )
2432                                .into_any_element()
2433                        }
2434                    }),
2435                    disposition: BlockDisposition::Above,
2436                })
2437                .collect::<Vec<_>>();
2438
2439            editor.remove_blocks(old_blocks, None, cx);
2440            let ids = editor.insert_blocks(new_blocks, None, cx);
2441            self.blocks = HashSet::from_iter(ids);
2442        });
2443    }
2444
2445    fn quote_selection(
2446        workspace: &mut Workspace,
2447        _: &QuoteSelection,
2448        cx: &mut ViewContext<Workspace>,
2449    ) {
2450        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2451            return;
2452        };
2453        let Some(editor) = workspace
2454            .active_item(cx)
2455            .and_then(|item| item.act_as::<Editor>(cx))
2456        else {
2457            return;
2458        };
2459
2460        let editor = editor.read(cx);
2461        let range = editor.selections.newest::<usize>(cx).range();
2462        let buffer = editor.buffer().read(cx).snapshot(cx);
2463        let start_language = buffer.language_at(range.start);
2464        let end_language = buffer.language_at(range.end);
2465        let language_name = if start_language == end_language {
2466            start_language.map(|language| language.name())
2467        } else {
2468            None
2469        };
2470        let language_name = language_name.as_deref().unwrap_or("").to_lowercase();
2471
2472        let selected_text = buffer.text_for_range(range).collect::<String>();
2473        let text = if selected_text.is_empty() {
2474            None
2475        } else {
2476            Some(if language_name == "markdown" {
2477                selected_text
2478                    .lines()
2479                    .map(|line| format!("> {}", line))
2480                    .collect::<Vec<_>>()
2481                    .join("\n")
2482            } else {
2483                format!("```{language_name}\n{selected_text}\n```")
2484            })
2485        };
2486
2487        // Activate the panel
2488        if !panel.focus_handle(cx).contains_focused(cx) {
2489            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2490        }
2491
2492        if let Some(text) = text {
2493            panel.update(cx, |panel, cx| {
2494                let conversation = panel
2495                    .active_editor()
2496                    .cloned()
2497                    .unwrap_or_else(|| panel.new_conversation(cx));
2498                conversation.update(cx, |conversation, cx| {
2499                    conversation
2500                        .editor
2501                        .update(cx, |editor, cx| editor.insert(&text, cx))
2502                });
2503            });
2504        }
2505    }
2506
2507    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2508        let editor = self.editor.read(cx);
2509        let conversation = self.conversation.read(cx);
2510        if editor.selections.count() == 1 {
2511            let selection = editor.selections.newest::<usize>(cx);
2512            let mut copied_text = String::new();
2513            let mut spanned_messages = 0;
2514            for message in conversation.messages(cx) {
2515                if message.offset_range.start >= selection.range().end {
2516                    break;
2517                } else if message.offset_range.end >= selection.range().start {
2518                    let range = cmp::max(message.offset_range.start, selection.range().start)
2519                        ..cmp::min(message.offset_range.end, selection.range().end);
2520                    if !range.is_empty() {
2521                        spanned_messages += 1;
2522                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2523                        for chunk in conversation.buffer.read(cx).text_for_range(range) {
2524                            copied_text.push_str(&chunk);
2525                        }
2526                        copied_text.push('\n');
2527                    }
2528                }
2529            }
2530
2531            if spanned_messages > 1 {
2532                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2533                return;
2534            }
2535        }
2536
2537        cx.propagate();
2538    }
2539
2540    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2541        self.conversation.update(cx, |conversation, cx| {
2542            let selections = self.editor.read(cx).selections.disjoint_anchors();
2543            for selection in selections.into_iter() {
2544                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2545                let range = selection
2546                    .map(|endpoint| endpoint.to_offset(&buffer))
2547                    .range();
2548                conversation.split_message(range, cx);
2549            }
2550        });
2551    }
2552
2553    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2554        self.conversation.update(cx, |conversation, cx| {
2555            conversation.save(None, self.fs.clone(), cx)
2556        });
2557    }
2558
2559    fn cycle_model(&mut self, cx: &mut ViewContext<Self>) {
2560        self.conversation.update(cx, |conversation, cx| {
2561            let new_model = conversation.model.cycle();
2562            conversation.set_model(new_model, cx);
2563        });
2564    }
2565
2566    fn title(&self, cx: &AppContext) -> String {
2567        self.conversation
2568            .read(cx)
2569            .summary
2570            .as_ref()
2571            .map(|summary| summary.text.clone())
2572            .unwrap_or_else(|| "New Conversation".into())
2573    }
2574
2575    fn render_current_model(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2576        Button::new(
2577            "current_model",
2578            self.conversation.read(cx).model.short_name(),
2579        )
2580        .style(ButtonStyle::Filled)
2581        .tooltip(move |cx| Tooltip::text("Change Model", cx))
2582        .on_click(cx.listener(|this, _, cx| this.cycle_model(cx)))
2583    }
2584
2585    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2586        let remaining_tokens = self.conversation.read(cx).remaining_tokens()?;
2587        let remaining_tokens_color = if remaining_tokens <= 0 {
2588            Color::Error
2589        } else if remaining_tokens <= 500 {
2590            Color::Warning
2591        } else {
2592            Color::Default
2593        };
2594        Some(Label::new(remaining_tokens.to_string()).color(remaining_tokens_color))
2595    }
2596}
2597
2598impl EventEmitter<ConversationEditorEvent> for ConversationEditor {}
2599
2600impl Render for ConversationEditor {
2601    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2602        div()
2603            .key_context("ConversationEditor")
2604            .capture_action(cx.listener(ConversationEditor::cancel_last_assist))
2605            .capture_action(cx.listener(ConversationEditor::save))
2606            .capture_action(cx.listener(ConversationEditor::copy))
2607            .capture_action(cx.listener(ConversationEditor::cycle_message_role))
2608            .on_action(cx.listener(ConversationEditor::assist))
2609            .on_action(cx.listener(ConversationEditor::split))
2610            .size_full()
2611            .relative()
2612            .child(
2613                div()
2614                    .size_full()
2615                    .pl_4()
2616                    .bg(cx.theme().colors().editor_background)
2617                    .child(self.editor.clone()),
2618            )
2619            .child(
2620                h_flex()
2621                    .absolute()
2622                    .gap_1()
2623                    .top_3()
2624                    .right_5()
2625                    .child(self.render_current_model(cx))
2626                    .children(self.render_remaining_tokens(cx)),
2627            )
2628    }
2629}
2630
2631impl FocusableView for ConversationEditor {
2632    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2633        self.editor.focus_handle(cx)
2634    }
2635}
2636
2637#[derive(Clone, Debug)]
2638struct MessageAnchor {
2639    id: MessageId,
2640    start: language::Anchor,
2641}
2642
2643#[derive(Clone, Debug)]
2644pub struct Message {
2645    offset_range: Range<usize>,
2646    index_range: Range<usize>,
2647    id: MessageId,
2648    anchor: language::Anchor,
2649    role: Role,
2650    sent_at: DateTime<Local>,
2651    status: MessageStatus,
2652}
2653
2654impl Message {
2655    fn to_open_ai_message(&self, buffer: &Buffer) -> RequestMessage {
2656        let content = buffer
2657            .text_for_range(self.offset_range.clone())
2658            .collect::<String>();
2659        RequestMessage {
2660            role: self.role,
2661            content: content.trim_end().into(),
2662        }
2663    }
2664}
2665
2666enum InlineAssistantEvent {
2667    Confirmed {
2668        prompt: String,
2669        include_conversation: bool,
2670        retrieve_context: bool,
2671    },
2672    Canceled,
2673    Dismissed,
2674    IncludeConversationToggled {
2675        include_conversation: bool,
2676    },
2677    RetrieveContextToggled {
2678        retrieve_context: bool,
2679    },
2680}
2681
2682struct InlineAssistant {
2683    id: usize,
2684    prompt_editor: View<Editor>,
2685    workspace: WeakView<Workspace>,
2686    confirmed: bool,
2687    include_conversation: bool,
2688    measurements: Rc<Cell<BlockMeasurements>>,
2689    prompt_history: VecDeque<String>,
2690    prompt_history_ix: Option<usize>,
2691    pending_prompt: String,
2692    codegen: Model<Codegen>,
2693    _subscriptions: Vec<Subscription>,
2694    retrieve_context: bool,
2695    semantic_index: Option<Model<SemanticIndex>>,
2696    semantic_permissioned: Option<bool>,
2697    project: WeakModel<Project>,
2698    maintain_rate_limit: Option<Task<()>>,
2699}
2700
2701impl EventEmitter<InlineAssistantEvent> for InlineAssistant {}
2702
2703impl Render for InlineAssistant {
2704    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2705        let measurements = self.measurements.get();
2706        h_flex()
2707            .w_full()
2708            .py_2()
2709            .border_y_1()
2710            .border_color(cx.theme().colors().border)
2711            .on_action(cx.listener(Self::confirm))
2712            .on_action(cx.listener(Self::cancel))
2713            .on_action(cx.listener(Self::toggle_include_conversation))
2714            .on_action(cx.listener(Self::toggle_retrieve_context))
2715            .on_action(cx.listener(Self::move_up))
2716            .on_action(cx.listener(Self::move_down))
2717            .child(
2718                h_flex()
2719                    .justify_center()
2720                    .w(measurements.gutter_width)
2721                    .child(
2722                        IconButton::new("include_conversation", IconName::Ai)
2723                            .on_click(cx.listener(|this, _, cx| {
2724                                this.toggle_include_conversation(&ToggleIncludeConversation, cx)
2725                            }))
2726                            .selected(self.include_conversation)
2727                            .tooltip(|cx| {
2728                                Tooltip::for_action(
2729                                    "Include Conversation",
2730                                    &ToggleIncludeConversation,
2731                                    cx,
2732                                )
2733                            }),
2734                    )
2735                    .children(if SemanticIndex::enabled(cx) {
2736                        Some(
2737                            IconButton::new("retrieve_context", IconName::MagnifyingGlass)
2738                                .on_click(cx.listener(|this, _, cx| {
2739                                    this.toggle_retrieve_context(&ToggleRetrieveContext, cx)
2740                                }))
2741                                .selected(self.retrieve_context)
2742                                .tooltip(|cx| {
2743                                    Tooltip::for_action(
2744                                        "Retrieve Context",
2745                                        &ToggleRetrieveContext,
2746                                        cx,
2747                                    )
2748                                }),
2749                        )
2750                    } else {
2751                        None
2752                    })
2753                    .children(if let Some(error) = self.codegen.read(cx).error() {
2754                        let error_message = SharedString::from(error.to_string());
2755                        Some(
2756                            div()
2757                                .id("error")
2758                                .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
2759                                .child(Icon::new(IconName::XCircle).color(Color::Error)),
2760                        )
2761                    } else {
2762                        None
2763                    }),
2764            )
2765            .child(
2766                h_flex()
2767                    .w_full()
2768                    .ml(measurements.anchor_x - measurements.gutter_width)
2769                    .child(self.render_prompt_editor(cx)),
2770            )
2771            .children(if self.retrieve_context {
2772                self.retrieve_context_status(cx)
2773            } else {
2774                None
2775            })
2776    }
2777}
2778
2779impl FocusableView for InlineAssistant {
2780    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2781        self.prompt_editor.focus_handle(cx)
2782    }
2783}
2784
2785impl InlineAssistant {
2786    fn new(
2787        id: usize,
2788        measurements: Rc<Cell<BlockMeasurements>>,
2789        include_conversation: bool,
2790        prompt_history: VecDeque<String>,
2791        codegen: Model<Codegen>,
2792        workspace: WeakView<Workspace>,
2793        cx: &mut ViewContext<Self>,
2794        retrieve_context: bool,
2795        semantic_index: Option<Model<SemanticIndex>>,
2796        project: Model<Project>,
2797    ) -> Self {
2798        let prompt_editor = cx.new_view(|cx| {
2799            let mut editor = Editor::single_line(cx);
2800            let placeholder = match codegen.read(cx).kind() {
2801                CodegenKind::Transform { .. } => "Enter transformation prompt…",
2802                CodegenKind::Generate { .. } => "Enter generation prompt…",
2803            };
2804            editor.set_placeholder_text(placeholder, cx);
2805            editor
2806        });
2807        cx.focus_view(&prompt_editor);
2808
2809        let mut subscriptions = vec![
2810            cx.observe(&codegen, Self::handle_codegen_changed),
2811            cx.subscribe(&prompt_editor, Self::handle_prompt_editor_events),
2812        ];
2813
2814        if let Some(semantic_index) = semantic_index.clone() {
2815            subscriptions.push(cx.observe(&semantic_index, Self::semantic_index_changed));
2816        }
2817
2818        let assistant = Self {
2819            id,
2820            prompt_editor,
2821            workspace,
2822            confirmed: false,
2823            include_conversation,
2824            measurements,
2825            prompt_history,
2826            prompt_history_ix: None,
2827            pending_prompt: String::new(),
2828            codegen,
2829            _subscriptions: subscriptions,
2830            retrieve_context,
2831            semantic_permissioned: None,
2832            semantic_index,
2833            project: project.downgrade(),
2834            maintain_rate_limit: None,
2835        };
2836
2837        assistant.index_project(cx).log_err();
2838
2839        assistant
2840    }
2841
2842    fn semantic_permissioned(&self, cx: &mut ViewContext<Self>) -> Task<Result<bool>> {
2843        if let Some(value) = self.semantic_permissioned {
2844            return Task::ready(Ok(value));
2845        }
2846
2847        let Some(project) = self.project.upgrade() else {
2848            return Task::ready(Err(anyhow!("project was dropped")));
2849        };
2850
2851        self.semantic_index
2852            .as_ref()
2853            .map(|semantic| {
2854                semantic.update(cx, |this, cx| this.project_previously_indexed(&project, cx))
2855            })
2856            .unwrap_or(Task::ready(Ok(false)))
2857    }
2858
2859    fn handle_prompt_editor_events(
2860        &mut self,
2861        _: View<Editor>,
2862        event: &EditorEvent,
2863        cx: &mut ViewContext<Self>,
2864    ) {
2865        if let EditorEvent::Edited = event {
2866            self.pending_prompt = self.prompt_editor.read(cx).text(cx);
2867            cx.notify();
2868        }
2869    }
2870
2871    fn semantic_index_changed(
2872        &mut self,
2873        semantic_index: Model<SemanticIndex>,
2874        cx: &mut ViewContext<Self>,
2875    ) {
2876        let Some(project) = self.project.upgrade() else {
2877            return;
2878        };
2879
2880        let status = semantic_index.read(cx).status(&project);
2881        match status {
2882            SemanticIndexStatus::Indexing {
2883                rate_limit_expiry: Some(_),
2884                ..
2885            } => {
2886                if self.maintain_rate_limit.is_none() {
2887                    self.maintain_rate_limit = Some(cx.spawn(|this, mut cx| async move {
2888                        loop {
2889                            cx.background_executor().timer(Duration::from_secs(1)).await;
2890                            this.update(&mut cx, |_, cx| cx.notify()).log_err();
2891                        }
2892                    }));
2893                }
2894                return;
2895            }
2896            _ => {
2897                self.maintain_rate_limit = None;
2898            }
2899        }
2900    }
2901
2902    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
2903        let is_read_only = !self.codegen.read(cx).idle();
2904        self.prompt_editor.update(cx, |editor, cx| {
2905            let was_read_only = editor.read_only(cx);
2906            if was_read_only != is_read_only {
2907                if is_read_only {
2908                    editor.set_read_only(true);
2909                } else {
2910                    self.confirmed = false;
2911                    editor.set_read_only(false);
2912                }
2913            }
2914        });
2915        cx.notify();
2916    }
2917
2918    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2919        cx.emit(InlineAssistantEvent::Canceled);
2920    }
2921
2922    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
2923        if self.confirmed {
2924            cx.emit(InlineAssistantEvent::Dismissed);
2925        } else {
2926            report_assistant_event(self.workspace.clone(), None, AssistantKind::Inline, cx);
2927
2928            let prompt = self.prompt_editor.read(cx).text(cx);
2929            self.prompt_editor
2930                .update(cx, |editor, _cx| editor.set_read_only(true));
2931            cx.emit(InlineAssistantEvent::Confirmed {
2932                prompt,
2933                include_conversation: self.include_conversation,
2934                retrieve_context: self.retrieve_context,
2935            });
2936            self.confirmed = true;
2937            cx.notify();
2938        }
2939    }
2940
2941    fn toggle_retrieve_context(&mut self, _: &ToggleRetrieveContext, cx: &mut ViewContext<Self>) {
2942        let semantic_permissioned = self.semantic_permissioned(cx);
2943
2944        let Some(project) = self.project.upgrade() else {
2945            return;
2946        };
2947
2948        let project_name = project
2949            .read(cx)
2950            .worktree_root_names(cx)
2951            .collect::<Vec<&str>>()
2952            .join("/");
2953        let is_plural = project_name.chars().filter(|letter| *letter == '/').count() > 0;
2954        let prompt_text = format!("Would you like to index the '{}' project{} for context retrieval? This requires sending code to the OpenAI API", project_name,
2955            if is_plural {
2956                "s"
2957            } else {""});
2958
2959        cx.spawn(|this, mut cx| async move {
2960            // If Necessary prompt user
2961            if !semantic_permissioned.await.unwrap_or(false) {
2962                let answer = this.update(&mut cx, |_, cx| {
2963                    cx.prompt(
2964                        PromptLevel::Info,
2965                        prompt_text.as_str(),
2966                        None,
2967                        &["Continue", "Cancel"],
2968                    )
2969                })?;
2970
2971                if answer.await? == 0 {
2972                    this.update(&mut cx, |this, _| {
2973                        this.semantic_permissioned = Some(true);
2974                    })?;
2975                } else {
2976                    return anyhow::Ok(());
2977                }
2978            }
2979
2980            // If permissioned, update context appropriately
2981            this.update(&mut cx, |this, cx| {
2982                this.retrieve_context = !this.retrieve_context;
2983
2984                cx.emit(InlineAssistantEvent::RetrieveContextToggled {
2985                    retrieve_context: this.retrieve_context,
2986                });
2987
2988                if this.retrieve_context {
2989                    this.index_project(cx).log_err();
2990                }
2991
2992                cx.notify();
2993            })?;
2994
2995            anyhow::Ok(())
2996        })
2997        .detach_and_log_err(cx);
2998    }
2999
3000    fn index_project(&self, cx: &mut ViewContext<Self>) -> anyhow::Result<()> {
3001        let Some(project) = self.project.upgrade() else {
3002            return Err(anyhow!("project was dropped!"));
3003        };
3004
3005        let semantic_permissioned = self.semantic_permissioned(cx);
3006        if let Some(semantic_index) = SemanticIndex::global(cx) {
3007            cx.spawn(|_, mut cx| async move {
3008                // This has to be updated to accommodate for semantic_permissions
3009                if semantic_permissioned.await.unwrap_or(false) {
3010                    semantic_index
3011                        .update(&mut cx, |index, cx| index.index_project(project, cx))?
3012                        .await
3013                } else {
3014                    Err(anyhow!("project is not permissioned for semantic indexing"))
3015                }
3016            })
3017            .detach_and_log_err(cx);
3018        }
3019
3020        anyhow::Ok(())
3021    }
3022
3023    fn retrieve_context_status(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
3024        let Some(project) = self.project.upgrade() else {
3025            return None;
3026        };
3027
3028        let semantic_index = SemanticIndex::global(cx)?;
3029        let status = semantic_index.update(cx, |index, _| index.status(&project));
3030        match status {
3031            SemanticIndexStatus::NotAuthenticated {} => Some(
3032                div()
3033                    .id("error")
3034                    .tooltip(|cx| Tooltip::text("Not Authenticated. Please ensure you have a valid 'OPENAI_API_KEY' in your environment variables.", cx))
3035                    .child(Icon::new(IconName::XCircle))
3036                    .into_any_element()
3037            ),
3038
3039            SemanticIndexStatus::NotIndexed {} => Some(
3040                div()
3041                    .id("error")
3042                    .tooltip(|cx| Tooltip::text("Not Indexed", cx))
3043                    .child(Icon::new(IconName::XCircle))
3044                    .into_any_element()
3045            ),
3046
3047            SemanticIndexStatus::Indexing {
3048                remaining_files,
3049                rate_limit_expiry,
3050            } => {
3051                let mut status_text = if remaining_files == 0 {
3052                    "Indexing...".to_string()
3053                } else {
3054                    format!("Remaining files to index: {remaining_files}")
3055                };
3056
3057                if let Some(rate_limit_expiry) = rate_limit_expiry {
3058                    let remaining_seconds = rate_limit_expiry.duration_since(Instant::now());
3059                    if remaining_seconds > Duration::from_secs(0) && remaining_files > 0 {
3060                        write!(
3061                            status_text,
3062                            " (rate limit expires in {}s)",
3063                            remaining_seconds.as_secs()
3064                        )
3065                        .unwrap();
3066                    }
3067                }
3068
3069                let status_text = SharedString::from(status_text);
3070                Some(
3071                    div()
3072                        .id("update")
3073                        .tooltip(move |cx| Tooltip::text(status_text.clone(), cx))
3074                        .child(Icon::new(IconName::Update).color(Color::Info))
3075                        .into_any_element()
3076                )
3077            }
3078
3079            SemanticIndexStatus::Indexed {} => Some(
3080                div()
3081                    .id("check")
3082                    .tooltip(|cx| Tooltip::text("Index up to date", cx))
3083                    .child(Icon::new(IconName::Check).color(Color::Success))
3084                    .into_any_element()
3085            ),
3086        }
3087    }
3088
3089    fn toggle_include_conversation(
3090        &mut self,
3091        _: &ToggleIncludeConversation,
3092        cx: &mut ViewContext<Self>,
3093    ) {
3094        self.include_conversation = !self.include_conversation;
3095        cx.emit(InlineAssistantEvent::IncludeConversationToggled {
3096            include_conversation: self.include_conversation,
3097        });
3098        cx.notify();
3099    }
3100
3101    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3102        if let Some(ix) = self.prompt_history_ix {
3103            if ix > 0 {
3104                self.prompt_history_ix = Some(ix - 1);
3105                let prompt = self.prompt_history[ix - 1].clone();
3106                self.set_prompt(&prompt, cx);
3107            }
3108        } else if !self.prompt_history.is_empty() {
3109            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
3110            let prompt = self.prompt_history[self.prompt_history.len() - 1].clone();
3111            self.set_prompt(&prompt, cx);
3112        }
3113    }
3114
3115    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3116        if let Some(ix) = self.prompt_history_ix {
3117            if ix < self.prompt_history.len() - 1 {
3118                self.prompt_history_ix = Some(ix + 1);
3119                let prompt = self.prompt_history[ix + 1].clone();
3120                self.set_prompt(&prompt, cx);
3121            } else {
3122                self.prompt_history_ix = None;
3123                let pending_prompt = self.pending_prompt.clone();
3124                self.set_prompt(&pending_prompt, cx);
3125            }
3126        }
3127    }
3128
3129    fn set_prompt(&mut self, prompt: &str, cx: &mut ViewContext<Self>) {
3130        self.prompt_editor.update(cx, |editor, cx| {
3131            editor.buffer().update(cx, |buffer, cx| {
3132                let len = buffer.len(cx);
3133                buffer.edit([(0..len, prompt)], None, cx);
3134            });
3135        });
3136    }
3137
3138    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3139        let settings = ThemeSettings::get_global(cx);
3140        let text_style = TextStyle {
3141            color: if self.prompt_editor.read(cx).read_only(cx) {
3142                cx.theme().colors().text_disabled
3143            } else {
3144                cx.theme().colors().text
3145            },
3146            font_family: settings.ui_font.family.clone(),
3147            font_features: settings.ui_font.features,
3148            font_size: rems(0.875).into(),
3149            font_weight: FontWeight::NORMAL,
3150            font_style: FontStyle::Normal,
3151            line_height: relative(1.3).into(),
3152            background_color: None,
3153            underline: None,
3154            white_space: WhiteSpace::Normal,
3155        };
3156        EditorElement::new(
3157            &self.prompt_editor,
3158            EditorStyle {
3159                background: cx.theme().colors().editor_background,
3160                local_player: cx.theme().players().local(),
3161                text: text_style,
3162                ..Default::default()
3163            },
3164        )
3165    }
3166}
3167
3168// This wouldn't need to exist if we could pass parameters when rendering child views.
3169#[derive(Copy, Clone, Default)]
3170struct BlockMeasurements {
3171    anchor_x: Pixels,
3172    gutter_width: Pixels,
3173}
3174
3175struct PendingInlineAssist {
3176    editor: WeakView<Editor>,
3177    inline_assistant: Option<(BlockId, View<InlineAssistant>)>,
3178    codegen: Model<Codegen>,
3179    _subscriptions: Vec<Subscription>,
3180    project: WeakModel<Project>,
3181}
3182
3183fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3184    ranges.sort_unstable_by(|a, b| {
3185        a.start
3186            .cmp(&b.start, buffer)
3187            .then_with(|| b.end.cmp(&a.end, buffer))
3188    });
3189
3190    let mut ix = 0;
3191    while ix + 1 < ranges.len() {
3192        let b = ranges[ix + 1].clone();
3193        let a = &mut ranges[ix];
3194        if a.end.cmp(&b.start, buffer).is_gt() {
3195            if a.end.cmp(&b.end, buffer).is_lt() {
3196                a.end = b.end;
3197            }
3198            ranges.remove(ix + 1);
3199        } else {
3200            ix += 1;
3201        }
3202    }
3203}
3204
3205#[cfg(test)]
3206mod tests {
3207    use super::*;
3208    use crate::MessageId;
3209    use ai::test::FakeCompletionProvider;
3210    use gpui::{AppContext, TestAppContext};
3211    use settings::SettingsStore;
3212
3213    #[gpui::test]
3214    fn test_inserting_and_removing_messages(cx: &mut AppContext) {
3215        let settings_store = SettingsStore::test(cx);
3216        cx.set_global(settings_store);
3217        init(cx);
3218        let registry = Arc::new(LanguageRegistry::test());
3219
3220        let completion_provider = Arc::new(FakeCompletionProvider::new());
3221        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3222        let buffer = conversation.read(cx).buffer.clone();
3223
3224        let message_1 = conversation.read(cx).message_anchors[0].clone();
3225        assert_eq!(
3226            messages(&conversation, cx),
3227            vec![(message_1.id, Role::User, 0..0)]
3228        );
3229
3230        let message_2 = conversation.update(cx, |conversation, cx| {
3231            conversation
3232                .insert_message_after(message_1.id, Role::Assistant, MessageStatus::Done, cx)
3233                .unwrap()
3234        });
3235        assert_eq!(
3236            messages(&conversation, cx),
3237            vec![
3238                (message_1.id, Role::User, 0..1),
3239                (message_2.id, Role::Assistant, 1..1)
3240            ]
3241        );
3242
3243        buffer.update(cx, |buffer, cx| {
3244            buffer.edit([(0..0, "1"), (1..1, "2")], None, cx)
3245        });
3246        assert_eq!(
3247            messages(&conversation, cx),
3248            vec![
3249                (message_1.id, Role::User, 0..2),
3250                (message_2.id, Role::Assistant, 2..3)
3251            ]
3252        );
3253
3254        let message_3 = conversation.update(cx, |conversation, cx| {
3255            conversation
3256                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3257                .unwrap()
3258        });
3259        assert_eq!(
3260            messages(&conversation, cx),
3261            vec![
3262                (message_1.id, Role::User, 0..2),
3263                (message_2.id, Role::Assistant, 2..4),
3264                (message_3.id, Role::User, 4..4)
3265            ]
3266        );
3267
3268        let message_4 = conversation.update(cx, |conversation, cx| {
3269            conversation
3270                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3271                .unwrap()
3272        });
3273        assert_eq!(
3274            messages(&conversation, cx),
3275            vec![
3276                (message_1.id, Role::User, 0..2),
3277                (message_2.id, Role::Assistant, 2..4),
3278                (message_4.id, Role::User, 4..5),
3279                (message_3.id, Role::User, 5..5),
3280            ]
3281        );
3282
3283        buffer.update(cx, |buffer, cx| {
3284            buffer.edit([(4..4, "C"), (5..5, "D")], None, cx)
3285        });
3286        assert_eq!(
3287            messages(&conversation, cx),
3288            vec![
3289                (message_1.id, Role::User, 0..2),
3290                (message_2.id, Role::Assistant, 2..4),
3291                (message_4.id, Role::User, 4..6),
3292                (message_3.id, Role::User, 6..7),
3293            ]
3294        );
3295
3296        // Deleting across message boundaries merges the messages.
3297        buffer.update(cx, |buffer, cx| buffer.edit([(1..4, "")], None, cx));
3298        assert_eq!(
3299            messages(&conversation, cx),
3300            vec![
3301                (message_1.id, Role::User, 0..3),
3302                (message_3.id, Role::User, 3..4),
3303            ]
3304        );
3305
3306        // Undoing the deletion should also undo the merge.
3307        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3308        assert_eq!(
3309            messages(&conversation, cx),
3310            vec![
3311                (message_1.id, Role::User, 0..2),
3312                (message_2.id, Role::Assistant, 2..4),
3313                (message_4.id, Role::User, 4..6),
3314                (message_3.id, Role::User, 6..7),
3315            ]
3316        );
3317
3318        // Redoing the deletion should also redo the merge.
3319        buffer.update(cx, |buffer, cx| buffer.redo(cx));
3320        assert_eq!(
3321            messages(&conversation, cx),
3322            vec![
3323                (message_1.id, Role::User, 0..3),
3324                (message_3.id, Role::User, 3..4),
3325            ]
3326        );
3327
3328        // Ensure we can still insert after a merged message.
3329        let message_5 = conversation.update(cx, |conversation, cx| {
3330            conversation
3331                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3332                .unwrap()
3333        });
3334        assert_eq!(
3335            messages(&conversation, cx),
3336            vec![
3337                (message_1.id, Role::User, 0..3),
3338                (message_5.id, Role::System, 3..4),
3339                (message_3.id, Role::User, 4..5)
3340            ]
3341        );
3342    }
3343
3344    #[gpui::test]
3345    fn test_message_splitting(cx: &mut AppContext) {
3346        let settings_store = SettingsStore::test(cx);
3347        cx.set_global(settings_store);
3348        init(cx);
3349        let registry = Arc::new(LanguageRegistry::test());
3350        let completion_provider = Arc::new(FakeCompletionProvider::new());
3351
3352        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3353        let buffer = conversation.read(cx).buffer.clone();
3354
3355        let message_1 = conversation.read(cx).message_anchors[0].clone();
3356        assert_eq!(
3357            messages(&conversation, cx),
3358            vec![(message_1.id, Role::User, 0..0)]
3359        );
3360
3361        buffer.update(cx, |buffer, cx| {
3362            buffer.edit([(0..0, "aaa\nbbb\nccc\nddd\n")], None, cx)
3363        });
3364
3365        let (_, message_2) =
3366            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3367        let message_2 = message_2.unwrap();
3368
3369        // We recycle newlines in the middle of a split message
3370        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\nddd\n");
3371        assert_eq!(
3372            messages(&conversation, cx),
3373            vec![
3374                (message_1.id, Role::User, 0..4),
3375                (message_2.id, Role::User, 4..16),
3376            ]
3377        );
3378
3379        let (_, message_3) =
3380            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3381        let message_3 = message_3.unwrap();
3382
3383        // We don't recycle newlines at the end of a split message
3384        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3385        assert_eq!(
3386            messages(&conversation, cx),
3387            vec![
3388                (message_1.id, Role::User, 0..4),
3389                (message_3.id, Role::User, 4..5),
3390                (message_2.id, Role::User, 5..17),
3391            ]
3392        );
3393
3394        let (_, message_4) =
3395            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3396        let message_4 = message_4.unwrap();
3397        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3398        assert_eq!(
3399            messages(&conversation, cx),
3400            vec![
3401                (message_1.id, Role::User, 0..4),
3402                (message_3.id, Role::User, 4..5),
3403                (message_2.id, Role::User, 5..9),
3404                (message_4.id, Role::User, 9..17),
3405            ]
3406        );
3407
3408        let (_, message_5) =
3409            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3410        let message_5 = message_5.unwrap();
3411        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\nddd\n");
3412        assert_eq!(
3413            messages(&conversation, cx),
3414            vec![
3415                (message_1.id, Role::User, 0..4),
3416                (message_3.id, Role::User, 4..5),
3417                (message_2.id, Role::User, 5..9),
3418                (message_4.id, Role::User, 9..10),
3419                (message_5.id, Role::User, 10..18),
3420            ]
3421        );
3422
3423        let (message_6, message_7) = conversation.update(cx, |conversation, cx| {
3424            conversation.split_message(14..16, cx)
3425        });
3426        let message_6 = message_6.unwrap();
3427        let message_7 = message_7.unwrap();
3428        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\ndd\nd\n");
3429        assert_eq!(
3430            messages(&conversation, cx),
3431            vec![
3432                (message_1.id, Role::User, 0..4),
3433                (message_3.id, Role::User, 4..5),
3434                (message_2.id, Role::User, 5..9),
3435                (message_4.id, Role::User, 9..10),
3436                (message_5.id, Role::User, 10..14),
3437                (message_6.id, Role::User, 14..17),
3438                (message_7.id, Role::User, 17..19),
3439            ]
3440        );
3441    }
3442
3443    #[gpui::test]
3444    fn test_messages_for_offsets(cx: &mut AppContext) {
3445        let settings_store = SettingsStore::test(cx);
3446        cx.set_global(settings_store);
3447        init(cx);
3448        let registry = Arc::new(LanguageRegistry::test());
3449        let completion_provider = Arc::new(FakeCompletionProvider::new());
3450        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3451        let buffer = conversation.read(cx).buffer.clone();
3452
3453        let message_1 = conversation.read(cx).message_anchors[0].clone();
3454        assert_eq!(
3455            messages(&conversation, cx),
3456            vec![(message_1.id, Role::User, 0..0)]
3457        );
3458
3459        buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "aaa")], None, cx));
3460        let message_2 = conversation
3461            .update(cx, |conversation, cx| {
3462                conversation.insert_message_after(message_1.id, Role::User, MessageStatus::Done, cx)
3463            })
3464            .unwrap();
3465        buffer.update(cx, |buffer, cx| buffer.edit([(4..4, "bbb")], None, cx));
3466
3467        let message_3 = conversation
3468            .update(cx, |conversation, cx| {
3469                conversation.insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3470            })
3471            .unwrap();
3472        buffer.update(cx, |buffer, cx| buffer.edit([(8..8, "ccc")], None, cx));
3473
3474        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc");
3475        assert_eq!(
3476            messages(&conversation, cx),
3477            vec![
3478                (message_1.id, Role::User, 0..4),
3479                (message_2.id, Role::User, 4..8),
3480                (message_3.id, Role::User, 8..11)
3481            ]
3482        );
3483
3484        assert_eq!(
3485            message_ids_for_offsets(&conversation, &[0, 4, 9], cx),
3486            [message_1.id, message_2.id, message_3.id]
3487        );
3488        assert_eq!(
3489            message_ids_for_offsets(&conversation, &[0, 1, 11], cx),
3490            [message_1.id, message_3.id]
3491        );
3492
3493        let message_4 = conversation
3494            .update(cx, |conversation, cx| {
3495                conversation.insert_message_after(message_3.id, Role::User, MessageStatus::Done, cx)
3496            })
3497            .unwrap();
3498        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\n");
3499        assert_eq!(
3500            messages(&conversation, cx),
3501            vec![
3502                (message_1.id, Role::User, 0..4),
3503                (message_2.id, Role::User, 4..8),
3504                (message_3.id, Role::User, 8..12),
3505                (message_4.id, Role::User, 12..12)
3506            ]
3507        );
3508        assert_eq!(
3509            message_ids_for_offsets(&conversation, &[0, 4, 8, 12], cx),
3510            [message_1.id, message_2.id, message_3.id, message_4.id]
3511        );
3512
3513        fn message_ids_for_offsets(
3514            conversation: &Model<Conversation>,
3515            offsets: &[usize],
3516            cx: &AppContext,
3517        ) -> Vec<MessageId> {
3518            conversation
3519                .read(cx)
3520                .messages_for_offsets(offsets.iter().copied(), cx)
3521                .into_iter()
3522                .map(|message| message.id)
3523                .collect()
3524        }
3525    }
3526
3527    #[gpui::test]
3528    async fn test_serialization(cx: &mut TestAppContext) {
3529        let settings_store = cx.update(SettingsStore::test);
3530        cx.set_global(settings_store);
3531        cx.update(init);
3532        let registry = Arc::new(LanguageRegistry::test());
3533        let completion_provider = Arc::new(FakeCompletionProvider::new());
3534        let conversation =
3535            cx.new_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
3536        let buffer = conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3537        let message_0 =
3538            conversation.read_with(cx, |conversation, _| conversation.message_anchors[0].id);
3539        let message_1 = conversation.update(cx, |conversation, cx| {
3540            conversation
3541                .insert_message_after(message_0, Role::Assistant, MessageStatus::Done, cx)
3542                .unwrap()
3543        });
3544        let message_2 = conversation.update(cx, |conversation, cx| {
3545            conversation
3546                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3547                .unwrap()
3548        });
3549        buffer.update(cx, |buffer, cx| {
3550            buffer.edit([(0..0, "a"), (1..1, "b\nc")], None, cx);
3551            buffer.finalize_last_transaction();
3552        });
3553        let _message_3 = conversation.update(cx, |conversation, cx| {
3554            conversation
3555                .insert_message_after(message_2.id, Role::System, MessageStatus::Done, cx)
3556                .unwrap()
3557        });
3558        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3559        assert_eq!(buffer.read_with(cx, |buffer, _| buffer.text()), "a\nb\nc\n");
3560        assert_eq!(
3561            cx.read(|cx| messages(&conversation, cx)),
3562            [
3563                (message_0, Role::User, 0..2),
3564                (message_1.id, Role::Assistant, 2..6),
3565                (message_2.id, Role::System, 6..6),
3566            ]
3567        );
3568
3569        let deserialized_conversation = Conversation::deserialize(
3570            conversation.read_with(cx, |conversation, cx| conversation.serialize(cx)),
3571            Default::default(),
3572            registry.clone(),
3573            &mut cx.to_async(),
3574        )
3575        .await
3576        .unwrap();
3577        let deserialized_buffer =
3578            deserialized_conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3579        assert_eq!(
3580            deserialized_buffer.read_with(cx, |buffer, _| buffer.text()),
3581            "a\nb\nc\n"
3582        );
3583        assert_eq!(
3584            cx.read(|cx| messages(&deserialized_conversation, cx)),
3585            [
3586                (message_0, Role::User, 0..2),
3587                (message_1.id, Role::Assistant, 2..6),
3588                (message_2.id, Role::System, 6..6),
3589            ]
3590        );
3591    }
3592
3593    fn messages(
3594        conversation: &Model<Conversation>,
3595        cx: &AppContext,
3596    ) -> Vec<(MessageId, Role, Range<usize>)> {
3597        conversation
3598            .read(cx)
3599            .messages(cx)
3600            .map(|message| (message.id, message.role, message.offset_range))
3601            .collect()
3602    }
3603}
3604
3605fn report_assistant_event(
3606    workspace: WeakView<Workspace>,
3607    conversation_id: Option<String>,
3608    assistant_kind: AssistantKind,
3609    cx: &AppContext,
3610) {
3611    let Some(workspace) = workspace.upgrade() else {
3612        return;
3613    };
3614
3615    let client = workspace.read(cx).project().read(cx).client();
3616    let telemetry = client.telemetry();
3617
3618    let model = AssistantSettings::get_global(cx)
3619        .default_open_ai_model
3620        .clone();
3621
3622    telemetry.report_assistant_event(conversation_id, assistant_kind, model.full_name())
3623}