assistant_panel.rs

   1use crate::{
   2    assistant_settings::{AssistantDockPosition, AssistantSettings, OpenAiModel},
   3    codegen::{self, Codegen, CodegenKind},
   4    prompts::generate_content_prompt,
   5    Assist, CycleMessageRole, InlineAssist, MessageId, MessageMetadata, MessageStatus,
   6    NewConversation, QuoteSelection, ResetKey, Role, SavedConversation, SavedConversationMetadata,
   7    SavedMessage, Split, ToggleFocus, ToggleIncludeConversation, ToggleRetrieveContext,
   8};
   9use ai::prompts::repository_context::PromptCodeSnippet;
  10use ai::{
  11    auth::ProviderCredential,
  12    completion::{CompletionProvider, CompletionRequest},
  13    providers::open_ai::{OpenAiCompletionProvider, OpenAiRequest, RequestMessage},
  14};
  15use anyhow::{anyhow, Result};
  16use chrono::{DateTime, Local};
  17use client::telemetry::AssistantKind;
  18use collections::{hash_map, HashMap, HashSet, VecDeque};
  19use editor::{
  20    actions::{MoveDown, MoveUp},
  21    display_map::{
  22        BlockContext, BlockDisposition, BlockId, BlockProperties, BlockStyle, ToDisplayPoint,
  23    },
  24    scroll::{Autoscroll, AutoscrollStrategy},
  25    Anchor, Editor, EditorElement, EditorEvent, EditorStyle, MultiBufferSnapshot, ToOffset,
  26    ToPoint,
  27};
  28use fs::Fs;
  29use futures::StreamExt;
  30use gpui::{
  31    canvas, div, point, relative, rems, uniform_list, Action, AnyElement, AppContext,
  32    AsyncAppContext, AsyncWindowContext, AvailableSpace, ClipboardItem, Context, EventEmitter,
  33    FocusHandle, FocusableView, FontStyle, FontWeight, HighlightStyle, InteractiveElement,
  34    IntoElement, Model, ModelContext, ParentElement, Pixels, PromptLevel, Render, SharedString,
  35    StatefulInteractiveElement, Styled, Subscription, Task, TextStyle, UniformListScrollHandle,
  36    View, ViewContext, VisualContext, WeakModel, WeakView, WhiteSpace, WindowContext,
  37};
  38use language::{language_settings::SoftWrap, Buffer, BufferId, LanguageRegistry, ToOffset as _};
  39use project::Project;
  40use search::{buffer_search::DivRegistrar, BufferSearchBar};
  41use semantic_index::{SemanticIndex, SemanticIndexStatus};
  42use settings::Settings;
  43use std::{
  44    cell::Cell,
  45    cmp,
  46    fmt::Write,
  47    iter,
  48    ops::Range,
  49    path::{Path, PathBuf},
  50    rc::Rc,
  51    sync::Arc,
  52    time::{Duration, Instant},
  53};
  54use theme::ThemeSettings;
  55use ui::{
  56    prelude::*,
  57    utils::{DateTimeType, FormatDistance},
  58    ButtonLike, Tab, TabBar, Tooltip,
  59};
  60use util::{paths::CONVERSATIONS_DIR, post_inc, ResultExt, TryFutureExt};
  61use uuid::Uuid;
  62use workspace::{
  63    dock::{DockPosition, Panel, PanelEvent},
  64    searchable::Direction,
  65    Save, Toast, ToggleZoom, Toolbar, Workspace,
  66};
  67
  68pub fn init(cx: &mut AppContext) {
  69    AssistantSettings::register(cx);
  70    cx.observe_new_views(
  71        |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
  72            workspace
  73                .register_action(|workspace, _: &ToggleFocus, cx| {
  74                    workspace.toggle_panel_focus::<AssistantPanel>(cx);
  75                })
  76                .register_action(AssistantPanel::inline_assist)
  77                .register_action(AssistantPanel::cancel_last_inline_assist)
  78                .register_action(ConversationEditor::quote_selection);
  79        },
  80    )
  81    .detach();
  82}
  83
  84pub struct AssistantPanel {
  85    workspace: WeakView<Workspace>,
  86    width: Option<Pixels>,
  87    height: Option<Pixels>,
  88    active_editor_index: Option<usize>,
  89    prev_active_editor_index: Option<usize>,
  90    editors: Vec<View<ConversationEditor>>,
  91    saved_conversations: Vec<SavedConversationMetadata>,
  92    saved_conversations_scroll_handle: UniformListScrollHandle,
  93    zoomed: bool,
  94    focus_handle: FocusHandle,
  95    toolbar: View<Toolbar>,
  96    completion_provider: Arc<dyn CompletionProvider>,
  97    api_key_editor: Option<View<Editor>>,
  98    languages: Arc<LanguageRegistry>,
  99    fs: Arc<dyn Fs>,
 100    subscriptions: Vec<Subscription>,
 101    next_inline_assist_id: usize,
 102    pending_inline_assists: HashMap<usize, PendingInlineAssist>,
 103    pending_inline_assist_ids_by_editor: HashMap<WeakView<Editor>, Vec<usize>>,
 104    include_conversation_in_next_inline_assist: bool,
 105    inline_prompt_history: VecDeque<String>,
 106    _watch_saved_conversations: Task<Result<()>>,
 107    semantic_index: Option<Model<SemanticIndex>>,
 108    retrieve_context_in_next_inline_assist: bool,
 109}
 110
 111impl AssistantPanel {
 112    const INLINE_PROMPT_HISTORY_MAX_LEN: usize = 20;
 113
 114    pub fn load(
 115        workspace: WeakView<Workspace>,
 116        cx: AsyncWindowContext,
 117    ) -> Task<Result<View<Self>>> {
 118        cx.spawn(|mut cx| async move {
 119            let fs = workspace.update(&mut cx, |workspace, _| workspace.app_state().fs.clone())?;
 120            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 121                .await
 122                .log_err()
 123                .unwrap_or_default();
 124            // Defaulting currently to GPT4, allow for this to be set via config.
 125            let completion_provider =
 126                OpenAiCompletionProvider::new("gpt-4".into(), cx.background_executor().clone())
 127                    .await;
 128
 129            // TODO: deserialize state.
 130            let workspace_handle = workspace.clone();
 131            workspace.update(&mut cx, |workspace, cx| {
 132                cx.new_view::<Self>(|cx| {
 133                    const CONVERSATION_WATCH_DURATION: Duration = Duration::from_millis(100);
 134                    let _watch_saved_conversations = cx.spawn(move |this, mut cx| async move {
 135                        let mut events = fs
 136                            .watch(&CONVERSATIONS_DIR, CONVERSATION_WATCH_DURATION)
 137                            .await;
 138                        while events.next().await.is_some() {
 139                            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 140                                .await
 141                                .log_err()
 142                                .unwrap_or_default();
 143                            this.update(&mut cx, |this, cx| {
 144                                this.saved_conversations = saved_conversations;
 145                                cx.notify();
 146                            })
 147                            .ok();
 148                        }
 149
 150                        anyhow::Ok(())
 151                    });
 152
 153                    let toolbar = cx.new_view(|cx| {
 154                        let mut toolbar = Toolbar::new();
 155                        toolbar.set_can_navigate(false, cx);
 156                        toolbar.add_item(cx.new_view(|cx| BufferSearchBar::new(cx)), cx);
 157                        toolbar
 158                    });
 159
 160                    let semantic_index = SemanticIndex::global(cx);
 161
 162                    let focus_handle = cx.focus_handle();
 163                    cx.on_focus_in(&focus_handle, Self::focus_in).detach();
 164                    cx.on_focus_out(&focus_handle, Self::focus_out).detach();
 165
 166                    Self {
 167                        workspace: workspace_handle,
 168                        active_editor_index: Default::default(),
 169                        prev_active_editor_index: Default::default(),
 170                        editors: Default::default(),
 171                        saved_conversations,
 172                        saved_conversations_scroll_handle: Default::default(),
 173                        zoomed: false,
 174                        focus_handle,
 175                        toolbar,
 176                        completion_provider: Arc::new(completion_provider),
 177                        api_key_editor: None,
 178                        languages: workspace.app_state().languages.clone(),
 179                        fs: workspace.app_state().fs.clone(),
 180                        width: None,
 181                        height: None,
 182                        subscriptions: Default::default(),
 183                        next_inline_assist_id: 0,
 184                        pending_inline_assists: Default::default(),
 185                        pending_inline_assist_ids_by_editor: Default::default(),
 186                        include_conversation_in_next_inline_assist: false,
 187                        inline_prompt_history: Default::default(),
 188                        _watch_saved_conversations,
 189                        semantic_index,
 190                        retrieve_context_in_next_inline_assist: false,
 191                    }
 192                })
 193            })
 194        })
 195    }
 196
 197    fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
 198        self.toolbar
 199            .update(cx, |toolbar, cx| toolbar.focus_changed(true, cx));
 200        cx.notify();
 201        if self.focus_handle.is_focused(cx) {
 202            if self.has_credentials() {
 203                if let Some(editor) = self.active_editor() {
 204                    cx.focus_view(editor);
 205                }
 206            }
 207
 208            if let Some(api_key_editor) = self.api_key_editor.as_ref() {
 209                cx.focus_view(api_key_editor);
 210            }
 211        }
 212    }
 213
 214    fn focus_out(&mut self, cx: &mut ViewContext<Self>) {
 215        self.toolbar
 216            .update(cx, |toolbar, cx| toolbar.focus_changed(false, cx));
 217        cx.notify();
 218    }
 219
 220    pub fn inline_assist(
 221        workspace: &mut Workspace,
 222        _: &InlineAssist,
 223        cx: &mut ViewContext<Workspace>,
 224    ) {
 225        let Some(assistant) = workspace.panel::<AssistantPanel>(cx) else {
 226            return;
 227        };
 228        let active_editor = if let Some(active_editor) = workspace
 229            .active_item(cx)
 230            .and_then(|item| item.act_as::<Editor>(cx))
 231        {
 232            active_editor
 233        } else {
 234            return;
 235        };
 236        let project = workspace.project().clone();
 237
 238        if assistant.update(cx, |assistant, _| assistant.has_credentials()) {
 239            assistant.update(cx, |assistant, cx| {
 240                assistant.new_inline_assist(&active_editor, cx, &project)
 241            });
 242        } else {
 243            let assistant = assistant.downgrade();
 244            cx.spawn(|workspace, mut cx| async move {
 245                assistant
 246                    .update(&mut cx, |assistant, cx| assistant.load_credentials(cx))?
 247                    .await;
 248                if assistant.update(&mut cx, |assistant, _| assistant.has_credentials())? {
 249                    assistant.update(&mut cx, |assistant, cx| {
 250                        assistant.new_inline_assist(&active_editor, cx, &project)
 251                    })?;
 252                } else {
 253                    workspace.update(&mut cx, |workspace, cx| {
 254                        workspace.focus_panel::<AssistantPanel>(cx)
 255                    })?;
 256                }
 257
 258                anyhow::Ok(())
 259            })
 260            .detach_and_log_err(cx)
 261        }
 262    }
 263
 264    fn new_inline_assist(
 265        &mut self,
 266        editor: &View<Editor>,
 267        cx: &mut ViewContext<Self>,
 268        project: &Model<Project>,
 269    ) {
 270        let selection = editor.read(cx).selections.newest_anchor().clone();
 271        if selection.start.excerpt_id != selection.end.excerpt_id {
 272            return;
 273        }
 274        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 275
 276        // Extend the selection to the start and the end of the line.
 277        let mut point_selection = selection.map(|selection| selection.to_point(&snapshot));
 278        if point_selection.end > point_selection.start {
 279            point_selection.start.column = 0;
 280            // If the selection ends at the start of the line, we don't want to include it.
 281            if point_selection.end.column == 0 {
 282                point_selection.end.row -= 1;
 283            }
 284            point_selection.end.column = snapshot.line_len(point_selection.end.row);
 285        }
 286
 287        let codegen_kind = if point_selection.start == point_selection.end {
 288            CodegenKind::Generate {
 289                position: snapshot.anchor_after(point_selection.start),
 290            }
 291        } else {
 292            CodegenKind::Transform {
 293                range: snapshot.anchor_before(point_selection.start)
 294                    ..snapshot.anchor_after(point_selection.end),
 295            }
 296        };
 297
 298        let inline_assist_id = post_inc(&mut self.next_inline_assist_id);
 299        let provider = self.completion_provider.clone();
 300
 301        let codegen = cx.new_model(|cx| {
 302            Codegen::new(editor.read(cx).buffer().clone(), codegen_kind, provider, cx)
 303        });
 304
 305        if let Some(semantic_index) = self.semantic_index.clone() {
 306            let project = project.clone();
 307            cx.spawn(|_, mut cx| async move {
 308                let previously_indexed = semantic_index
 309                    .update(&mut cx, |index, cx| {
 310                        index.project_previously_indexed(&project, cx)
 311                    })?
 312                    .await
 313                    .unwrap_or(false);
 314                if previously_indexed {
 315                    let _ = semantic_index
 316                        .update(&mut cx, |index, cx| {
 317                            index.index_project(project.clone(), cx)
 318                        })?
 319                        .await;
 320                }
 321                anyhow::Ok(())
 322            })
 323            .detach_and_log_err(cx);
 324        }
 325
 326        let measurements = Rc::new(Cell::new(BlockMeasurements::default()));
 327        let inline_assistant = cx.new_view(|cx| {
 328            InlineAssistant::new(
 329                inline_assist_id,
 330                measurements.clone(),
 331                self.include_conversation_in_next_inline_assist,
 332                self.inline_prompt_history.clone(),
 333                codegen.clone(),
 334                self.workspace.clone(),
 335                cx,
 336                self.retrieve_context_in_next_inline_assist,
 337                self.semantic_index.clone(),
 338                project.clone(),
 339            )
 340        });
 341        let block_id = editor.update(cx, |editor, cx| {
 342            editor.change_selections(None, cx, |selections| {
 343                selections.select_anchor_ranges([selection.head()..selection.head()])
 344            });
 345            editor.insert_blocks(
 346                [BlockProperties {
 347                    style: BlockStyle::Flex,
 348                    position: snapshot.anchor_before(point_selection.head()),
 349                    height: 2,
 350                    render: Arc::new({
 351                        let inline_assistant = inline_assistant.clone();
 352                        move |cx: &mut BlockContext| {
 353                            measurements.set(BlockMeasurements {
 354                                anchor_x: cx.anchor_x,
 355                                gutter_width: cx.gutter_width,
 356                            });
 357                            inline_assistant.clone().into_any_element()
 358                        }
 359                    }),
 360                    disposition: if selection.reversed {
 361                        BlockDisposition::Above
 362                    } else {
 363                        BlockDisposition::Below
 364                    },
 365                }],
 366                Some(Autoscroll::Strategy(AutoscrollStrategy::Newest)),
 367                cx,
 368            )[0]
 369        });
 370
 371        self.pending_inline_assists.insert(
 372            inline_assist_id,
 373            PendingInlineAssist {
 374                editor: editor.downgrade(),
 375                inline_assistant: Some((block_id, inline_assistant.clone())),
 376                codegen: codegen.clone(),
 377                project: project.downgrade(),
 378                _subscriptions: vec![
 379                    cx.subscribe(&inline_assistant, Self::handle_inline_assistant_event),
 380                    cx.subscribe(editor, {
 381                        let inline_assistant = inline_assistant.downgrade();
 382                        move |_, editor, event, cx| {
 383                            if let Some(inline_assistant) = inline_assistant.upgrade() {
 384                                if let EditorEvent::SelectionsChanged { local } = event {
 385                                    if *local
 386                                        && inline_assistant.focus_handle(cx).contains_focused(cx)
 387                                    {
 388                                        cx.focus_view(&editor);
 389                                    }
 390                                }
 391                            }
 392                        }
 393                    }),
 394                    cx.observe(&codegen, {
 395                        let editor = editor.downgrade();
 396                        move |this, _, cx| {
 397                            if let Some(editor) = editor.upgrade() {
 398                                this.update_highlights_for_editor(&editor, cx);
 399                            }
 400                        }
 401                    }),
 402                    cx.subscribe(&codegen, move |this, codegen, event, cx| match event {
 403                        codegen::Event::Undone => {
 404                            this.finish_inline_assist(inline_assist_id, false, cx)
 405                        }
 406                        codegen::Event::Finished => {
 407                            let pending_assist = if let Some(pending_assist) =
 408                                this.pending_inline_assists.get(&inline_assist_id)
 409                            {
 410                                pending_assist
 411                            } else {
 412                                return;
 413                            };
 414
 415                            let error = codegen
 416                                .read(cx)
 417                                .error()
 418                                .map(|error| format!("Inline assistant error: {}", error));
 419                            if let Some(error) = error {
 420                                if pending_assist.inline_assistant.is_none() {
 421                                    if let Some(workspace) = this.workspace.upgrade() {
 422                                        workspace.update(cx, |workspace, cx| {
 423                                            workspace.show_toast(
 424                                                Toast::new(inline_assist_id, error),
 425                                                cx,
 426                                            );
 427                                        })
 428                                    }
 429
 430                                    this.finish_inline_assist(inline_assist_id, false, cx);
 431                                }
 432                            } else {
 433                                this.finish_inline_assist(inline_assist_id, false, cx);
 434                            }
 435                        }
 436                    }),
 437                ],
 438            },
 439        );
 440        self.pending_inline_assist_ids_by_editor
 441            .entry(editor.downgrade())
 442            .or_default()
 443            .push(inline_assist_id);
 444        self.update_highlights_for_editor(&editor, cx);
 445    }
 446
 447    fn handle_inline_assistant_event(
 448        &mut self,
 449        inline_assistant: View<InlineAssistant>,
 450        event: &InlineAssistantEvent,
 451        cx: &mut ViewContext<Self>,
 452    ) {
 453        let assist_id = inline_assistant.read(cx).id;
 454        match event {
 455            InlineAssistantEvent::Confirmed {
 456                prompt,
 457                include_conversation,
 458                retrieve_context,
 459            } => {
 460                self.confirm_inline_assist(
 461                    assist_id,
 462                    prompt,
 463                    *include_conversation,
 464                    cx,
 465                    *retrieve_context,
 466                );
 467            }
 468            InlineAssistantEvent::Canceled => {
 469                self.finish_inline_assist(assist_id, true, cx);
 470            }
 471            InlineAssistantEvent::Dismissed => {
 472                self.hide_inline_assist(assist_id, cx);
 473            }
 474            InlineAssistantEvent::IncludeConversationToggled {
 475                include_conversation,
 476            } => {
 477                self.include_conversation_in_next_inline_assist = *include_conversation;
 478            }
 479            InlineAssistantEvent::RetrieveContextToggled { retrieve_context } => {
 480                self.retrieve_context_in_next_inline_assist = *retrieve_context
 481            }
 482        }
 483    }
 484
 485    fn cancel_last_inline_assist(
 486        workspace: &mut Workspace,
 487        _: &editor::actions::Cancel,
 488        cx: &mut ViewContext<Workspace>,
 489    ) {
 490        if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 491            if let Some(editor) = workspace
 492                .active_item(cx)
 493                .and_then(|item| item.downcast::<Editor>())
 494            {
 495                let handled = panel.update(cx, |panel, cx| {
 496                    if let Some(assist_id) = panel
 497                        .pending_inline_assist_ids_by_editor
 498                        .get(&editor.downgrade())
 499                        .and_then(|assist_ids| assist_ids.last().copied())
 500                    {
 501                        panel.finish_inline_assist(assist_id, true, cx);
 502                        true
 503                    } else {
 504                        false
 505                    }
 506                });
 507                if handled {
 508                    return;
 509                }
 510            }
 511        }
 512
 513        cx.propagate();
 514    }
 515
 516    fn finish_inline_assist(&mut self, assist_id: usize, undo: bool, cx: &mut ViewContext<Self>) {
 517        self.hide_inline_assist(assist_id, cx);
 518
 519        if let Some(pending_assist) = self.pending_inline_assists.remove(&assist_id) {
 520            if let hash_map::Entry::Occupied(mut entry) = self
 521                .pending_inline_assist_ids_by_editor
 522                .entry(pending_assist.editor.clone())
 523            {
 524                entry.get_mut().retain(|id| *id != assist_id);
 525                if entry.get().is_empty() {
 526                    entry.remove();
 527                }
 528            }
 529
 530            if let Some(editor) = pending_assist.editor.upgrade() {
 531                self.update_highlights_for_editor(&editor, cx);
 532
 533                if undo {
 534                    pending_assist
 535                        .codegen
 536                        .update(cx, |codegen, cx| codegen.undo(cx));
 537                }
 538            }
 539        }
 540    }
 541
 542    fn hide_inline_assist(&mut self, assist_id: usize, cx: &mut ViewContext<Self>) {
 543        if let Some(pending_assist) = self.pending_inline_assists.get_mut(&assist_id) {
 544            if let Some(editor) = pending_assist.editor.upgrade() {
 545                if let Some((block_id, inline_assistant)) = pending_assist.inline_assistant.take() {
 546                    editor.update(cx, |editor, cx| {
 547                        editor.remove_blocks(HashSet::from_iter([block_id]), None, cx);
 548                        if inline_assistant.focus_handle(cx).contains_focused(cx) {
 549                            editor.focus(cx);
 550                        }
 551                    });
 552                }
 553            }
 554        }
 555    }
 556
 557    fn confirm_inline_assist(
 558        &mut self,
 559        inline_assist_id: usize,
 560        user_prompt: &str,
 561        include_conversation: bool,
 562        cx: &mut ViewContext<Self>,
 563        retrieve_context: bool,
 564    ) {
 565        let conversation = if include_conversation {
 566            self.active_editor()
 567                .map(|editor| editor.read(cx).conversation.clone())
 568        } else {
 569            None
 570        };
 571
 572        let pending_assist =
 573            if let Some(pending_assist) = self.pending_inline_assists.get_mut(&inline_assist_id) {
 574                pending_assist
 575            } else {
 576                return;
 577            };
 578
 579        let editor = if let Some(editor) = pending_assist.editor.upgrade() {
 580            editor
 581        } else {
 582            return;
 583        };
 584
 585        let project = pending_assist.project.clone();
 586
 587        let project_name = if let Some(project) = project.upgrade() {
 588            Some(
 589                project
 590                    .read(cx)
 591                    .worktree_root_names(cx)
 592                    .collect::<Vec<&str>>()
 593                    .join("/"),
 594            )
 595        } else {
 596            None
 597        };
 598
 599        self.inline_prompt_history
 600            .retain(|prompt| prompt != user_prompt);
 601        self.inline_prompt_history.push_back(user_prompt.into());
 602        if self.inline_prompt_history.len() > Self::INLINE_PROMPT_HISTORY_MAX_LEN {
 603            self.inline_prompt_history.pop_front();
 604        }
 605
 606        let codegen = pending_assist.codegen.clone();
 607        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 608        let range = codegen.read(cx).range();
 609        let start = snapshot.point_to_buffer_offset(range.start);
 610        let end = snapshot.point_to_buffer_offset(range.end);
 611        let (buffer, range) = if let Some((start, end)) = start.zip(end) {
 612            let (start_buffer, start_buffer_offset) = start;
 613            let (end_buffer, end_buffer_offset) = end;
 614            if start_buffer.remote_id() == end_buffer.remote_id() {
 615                (start_buffer.clone(), start_buffer_offset..end_buffer_offset)
 616            } else {
 617                self.finish_inline_assist(inline_assist_id, false, cx);
 618                return;
 619            }
 620        } else {
 621            self.finish_inline_assist(inline_assist_id, false, cx);
 622            return;
 623        };
 624
 625        let language = buffer.language_at(range.start);
 626        let language_name = if let Some(language) = language.as_ref() {
 627            if Arc::ptr_eq(language, &language::PLAIN_TEXT) {
 628                None
 629            } else {
 630                Some(language.name())
 631            }
 632        } else {
 633            None
 634        };
 635
 636        // Higher Temperature increases the randomness of model outputs.
 637        // If Markdown or No Language is Known, increase the randomness for more creative output
 638        // If Code, decrease temperature to get more deterministic outputs
 639        let temperature = if let Some(language) = language_name.clone() {
 640            if language.to_string() != "Markdown".to_string() {
 641                0.5
 642            } else {
 643                1.0
 644            }
 645        } else {
 646            1.0
 647        };
 648
 649        let user_prompt = user_prompt.to_string();
 650
 651        let snippets = if retrieve_context {
 652            let Some(project) = project.upgrade() else {
 653                return;
 654            };
 655
 656            let search_results = if let Some(semantic_index) = self.semantic_index.clone() {
 657                let search_results = semantic_index.update(cx, |this, cx| {
 658                    this.search_project(project, user_prompt.to_string(), 10, vec![], vec![], cx)
 659                });
 660
 661                cx.background_executor()
 662                    .spawn(async move { search_results.await.unwrap_or_default() })
 663            } else {
 664                Task::ready(Vec::new())
 665            };
 666
 667            let snippets = cx.spawn(|_, mut cx| async move {
 668                let mut snippets = Vec::new();
 669                for result in search_results.await {
 670                    snippets.push(PromptCodeSnippet::new(
 671                        result.buffer,
 672                        result.range,
 673                        &mut cx,
 674                    )?);
 675                }
 676                anyhow::Ok(snippets)
 677            });
 678            snippets
 679        } else {
 680            Task::ready(Ok(Vec::new()))
 681        };
 682
 683        let mut model = AssistantSettings::get_global(cx)
 684            .default_open_ai_model
 685            .clone();
 686        let model_name = model.full_name();
 687
 688        let prompt = cx.background_executor().spawn(async move {
 689            let snippets = snippets.await?;
 690
 691            let language_name = language_name.as_deref();
 692            generate_content_prompt(
 693                user_prompt,
 694                language_name,
 695                buffer,
 696                range,
 697                snippets,
 698                model_name,
 699                project_name,
 700            )
 701        });
 702
 703        let mut messages = Vec::new();
 704        if let Some(conversation) = conversation {
 705            let conversation = conversation.read(cx);
 706            let buffer = conversation.buffer.read(cx);
 707            messages.extend(
 708                conversation
 709                    .messages(cx)
 710                    .map(|message| message.to_open_ai_message(buffer)),
 711            );
 712            model = conversation.model.clone();
 713        }
 714
 715        cx.spawn(|_, mut cx| async move {
 716            // I Don't know if we want to return a ? here.
 717            let prompt = prompt.await?;
 718
 719            messages.push(RequestMessage {
 720                role: Role::User,
 721                content: prompt,
 722            });
 723
 724            let request = Box::new(OpenAiRequest {
 725                model: model.full_name().into(),
 726                messages,
 727                stream: true,
 728                stop: vec!["|END|>".to_string()],
 729                temperature,
 730            });
 731
 732            codegen.update(&mut cx, |codegen, cx| codegen.start(request, cx))?;
 733            anyhow::Ok(())
 734        })
 735        .detach();
 736    }
 737
 738    fn update_highlights_for_editor(&self, editor: &View<Editor>, cx: &mut ViewContext<Self>) {
 739        let mut background_ranges = Vec::new();
 740        let mut foreground_ranges = Vec::new();
 741        let empty_inline_assist_ids = Vec::new();
 742        let inline_assist_ids = self
 743            .pending_inline_assist_ids_by_editor
 744            .get(&editor.downgrade())
 745            .unwrap_or(&empty_inline_assist_ids);
 746
 747        for inline_assist_id in inline_assist_ids {
 748            if let Some(pending_assist) = self.pending_inline_assists.get(inline_assist_id) {
 749                let codegen = pending_assist.codegen.read(cx);
 750                background_ranges.push(codegen.range());
 751                foreground_ranges.extend(codegen.last_equal_ranges().iter().cloned());
 752            }
 753        }
 754
 755        let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
 756        merge_ranges(&mut background_ranges, &snapshot);
 757        merge_ranges(&mut foreground_ranges, &snapshot);
 758        editor.update(cx, |editor, cx| {
 759            if background_ranges.is_empty() {
 760                editor.clear_background_highlights::<PendingInlineAssist>(cx);
 761            } else {
 762                editor.highlight_background::<PendingInlineAssist>(
 763                    background_ranges,
 764                    |theme| theme.editor_active_line_background, // todo!("use the appropriate color")
 765                    cx,
 766                );
 767            }
 768
 769            if foreground_ranges.is_empty() {
 770                editor.clear_highlights::<PendingInlineAssist>(cx);
 771            } else {
 772                editor.highlight_text::<PendingInlineAssist>(
 773                    foreground_ranges,
 774                    HighlightStyle {
 775                        fade_out: Some(0.6),
 776                        ..Default::default()
 777                    },
 778                    cx,
 779                );
 780            }
 781        });
 782    }
 783
 784    fn build_api_key_editor(&mut self, cx: &mut WindowContext<'_>) {
 785        self.api_key_editor = Some(build_api_key_editor(cx));
 786    }
 787
 788    fn new_conversation(&mut self, cx: &mut ViewContext<Self>) -> View<ConversationEditor> {
 789        let editor = cx.new_view(|cx| {
 790            ConversationEditor::new(
 791                self.completion_provider.clone(),
 792                self.languages.clone(),
 793                self.fs.clone(),
 794                self.workspace.clone(),
 795                cx,
 796            )
 797        });
 798        self.add_conversation(editor.clone(), cx);
 799        editor
 800    }
 801
 802    fn add_conversation(&mut self, editor: View<ConversationEditor>, cx: &mut ViewContext<Self>) {
 803        self.subscriptions
 804            .push(cx.subscribe(&editor, Self::handle_conversation_editor_event));
 805
 806        let conversation = editor.read(cx).conversation.clone();
 807        self.subscriptions
 808            .push(cx.observe(&conversation, |_, _, cx| cx.notify()));
 809
 810        let index = self.editors.len();
 811        self.editors.push(editor);
 812        self.set_active_editor_index(Some(index), cx);
 813    }
 814
 815    fn set_active_editor_index(&mut self, index: Option<usize>, cx: &mut ViewContext<Self>) {
 816        self.prev_active_editor_index = self.active_editor_index;
 817        self.active_editor_index = index;
 818        if let Some(editor) = self.active_editor() {
 819            let editor = editor.read(cx).editor.clone();
 820            self.toolbar.update(cx, |toolbar, cx| {
 821                toolbar.set_active_item(Some(&editor), cx);
 822            });
 823            if self.focus_handle.contains_focused(cx) {
 824                cx.focus_view(&editor);
 825            }
 826        } else {
 827            self.toolbar.update(cx, |toolbar, cx| {
 828                toolbar.set_active_item(None, cx);
 829            });
 830        }
 831
 832        cx.notify();
 833    }
 834
 835    fn handle_conversation_editor_event(
 836        &mut self,
 837        _: View<ConversationEditor>,
 838        event: &ConversationEditorEvent,
 839        cx: &mut ViewContext<Self>,
 840    ) {
 841        match event {
 842            ConversationEditorEvent::TabContentChanged => cx.notify(),
 843        }
 844    }
 845
 846    fn save_credentials(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
 847        if let Some(api_key) = self
 848            .api_key_editor
 849            .as_ref()
 850            .map(|editor| editor.read(cx).text(cx))
 851        {
 852            if !api_key.is_empty() {
 853                let credential = ProviderCredential::Credentials {
 854                    api_key: api_key.clone(),
 855                };
 856
 857                let completion_provider = self.completion_provider.clone();
 858                cx.spawn(|this, mut cx| async move {
 859                    cx.update(|cx| completion_provider.save_credentials(cx, credential))?
 860                        .await;
 861
 862                    this.update(&mut cx, |this, cx| {
 863                        this.api_key_editor.take();
 864                        this.focus_handle.focus(cx);
 865                        cx.notify();
 866                    })
 867                })
 868                .detach_and_log_err(cx);
 869            }
 870        } else {
 871            cx.propagate();
 872        }
 873    }
 874
 875    fn reset_credentials(&mut self, _: &ResetKey, cx: &mut ViewContext<Self>) {
 876        let completion_provider = self.completion_provider.clone();
 877        cx.spawn(|this, mut cx| async move {
 878            cx.update(|cx| completion_provider.delete_credentials(cx))?
 879                .await;
 880            this.update(&mut cx, |this, cx| {
 881                this.build_api_key_editor(cx);
 882                this.focus_handle.focus(cx);
 883                cx.notify();
 884            })
 885        })
 886        .detach_and_log_err(cx);
 887    }
 888
 889    fn toggle_zoom(&mut self, _: &workspace::ToggleZoom, cx: &mut ViewContext<Self>) {
 890        if self.zoomed {
 891            cx.emit(PanelEvent::ZoomOut)
 892        } else {
 893            cx.emit(PanelEvent::ZoomIn)
 894        }
 895    }
 896
 897    fn deploy(&mut self, action: &search::buffer_search::Deploy, cx: &mut ViewContext<Self>) {
 898        let mut propagate = true;
 899        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 900            search_bar.update(cx, |search_bar, cx| {
 901                if search_bar.show(cx) {
 902                    search_bar.search_suggested(cx);
 903                    if action.focus {
 904                        let focus_handle = search_bar.focus_handle(cx);
 905                        search_bar.select_query(cx);
 906                        cx.focus(&focus_handle);
 907                    }
 908                    propagate = false
 909                }
 910            });
 911        }
 912        if propagate {
 913            cx.propagate();
 914        }
 915    }
 916
 917    fn handle_editor_cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
 918        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 919            if !search_bar.read(cx).is_dismissed() {
 920                search_bar.update(cx, |search_bar, cx| {
 921                    search_bar.dismiss(&Default::default(), cx)
 922                });
 923                return;
 924            }
 925        }
 926        cx.propagate();
 927    }
 928
 929    fn select_next_match(&mut self, _: &search::SelectNextMatch, cx: &mut ViewContext<Self>) {
 930        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 931            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Next, 1, cx));
 932        }
 933    }
 934
 935    fn select_prev_match(&mut self, _: &search::SelectPrevMatch, cx: &mut ViewContext<Self>) {
 936        if let Some(search_bar) = self.toolbar.read(cx).item_of_type::<BufferSearchBar>() {
 937            search_bar.update(cx, |bar, cx| bar.select_match(Direction::Prev, 1, cx));
 938        }
 939    }
 940
 941    fn active_editor(&self) -> Option<&View<ConversationEditor>> {
 942        self.editors.get(self.active_editor_index?)
 943    }
 944
 945    fn render_api_key_editor(
 946        &self,
 947        editor: &View<Editor>,
 948        cx: &mut ViewContext<Self>,
 949    ) -> impl IntoElement {
 950        let settings = ThemeSettings::get_global(cx);
 951        let text_style = TextStyle {
 952            color: if editor.read(cx).read_only(cx) {
 953                cx.theme().colors().text_disabled
 954            } else {
 955                cx.theme().colors().text
 956            },
 957            font_family: settings.ui_font.family.clone(),
 958            font_features: settings.ui_font.features,
 959            font_size: rems(0.875).into(),
 960            font_weight: FontWeight::NORMAL,
 961            font_style: FontStyle::Normal,
 962            line_height: relative(1.3).into(),
 963            background_color: None,
 964            underline: None,
 965            strikethrough: None,
 966            white_space: WhiteSpace::Normal,
 967        };
 968        EditorElement::new(
 969            &editor,
 970            EditorStyle {
 971                background: cx.theme().colors().editor_background,
 972                local_player: cx.theme().players().local(),
 973                text: text_style,
 974                ..Default::default()
 975            },
 976        )
 977    }
 978
 979    fn render_hamburger_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
 980        IconButton::new("hamburger_button", IconName::Menu)
 981            .on_click(cx.listener(|this, _event, cx| {
 982                if this.active_editor().is_some() {
 983                    this.set_active_editor_index(None, cx);
 984                } else {
 985                    this.set_active_editor_index(this.prev_active_editor_index, cx);
 986                }
 987            }))
 988            .tooltip(|cx| Tooltip::text("Conversation History", cx))
 989    }
 990
 991    fn render_editor_tools(&self, cx: &mut ViewContext<Self>) -> Vec<AnyElement> {
 992        if self.active_editor().is_some() {
 993            vec![
 994                Self::render_split_button(cx).into_any_element(),
 995                Self::render_quote_button(cx).into_any_element(),
 996                Self::render_assist_button(cx).into_any_element(),
 997            ]
 998        } else {
 999            Default::default()
1000        }
1001    }
1002
1003    fn render_split_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1004        IconButton::new("split_button", IconName::Snip)
1005            .on_click(cx.listener(|this, _event, cx| {
1006                if let Some(active_editor) = this.active_editor() {
1007                    active_editor.update(cx, |editor, cx| editor.split(&Default::default(), cx));
1008                }
1009            }))
1010            .icon_size(IconSize::Small)
1011            .tooltip(|cx| Tooltip::for_action("Split Message", &Split, cx))
1012    }
1013
1014    fn render_assist_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1015        IconButton::new("assist_button", IconName::MagicWand)
1016            .on_click(cx.listener(|this, _event, cx| {
1017                if let Some(active_editor) = this.active_editor() {
1018                    active_editor.update(cx, |editor, cx| editor.assist(&Default::default(), cx));
1019                }
1020            }))
1021            .icon_size(IconSize::Small)
1022            .tooltip(|cx| Tooltip::for_action("Assist", &Assist, cx))
1023    }
1024
1025    fn render_quote_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1026        IconButton::new("quote_button", IconName::Quote)
1027            .on_click(cx.listener(|this, _event, cx| {
1028                if let Some(workspace) = this.workspace.upgrade() {
1029                    cx.window_context().defer(move |cx| {
1030                        workspace.update(cx, |workspace, cx| {
1031                            ConversationEditor::quote_selection(workspace, &Default::default(), cx)
1032                        });
1033                    });
1034                }
1035            }))
1036            .icon_size(IconSize::Small)
1037            .tooltip(|cx| Tooltip::for_action("Quote Selection", &QuoteSelection, cx))
1038    }
1039
1040    fn render_plus_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1041        IconButton::new("plus_button", IconName::Plus)
1042            .on_click(cx.listener(|this, _event, cx| {
1043                this.new_conversation(cx);
1044            }))
1045            .icon_size(IconSize::Small)
1046            .tooltip(|cx| Tooltip::for_action("New Conversation", &NewConversation, cx))
1047    }
1048
1049    fn render_zoom_button(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1050        let zoomed = self.zoomed;
1051        IconButton::new("zoom_button", IconName::Maximize)
1052            .on_click(cx.listener(|this, _event, cx| {
1053                this.toggle_zoom(&ToggleZoom, cx);
1054            }))
1055            .selected(zoomed)
1056            .selected_icon(IconName::Minimize)
1057            .icon_size(IconSize::Small)
1058            .tooltip(move |cx| {
1059                Tooltip::for_action(if zoomed { "Zoom Out" } else { "Zoom In" }, &ToggleZoom, cx)
1060            })
1061    }
1062
1063    fn render_saved_conversation(
1064        &mut self,
1065        index: usize,
1066        cx: &mut ViewContext<Self>,
1067    ) -> impl IntoElement {
1068        let conversation = &self.saved_conversations[index];
1069        let path = conversation.path.clone();
1070
1071        ButtonLike::new(index)
1072            .on_click(cx.listener(move |this, _, cx| {
1073                this.open_conversation(path.clone(), cx)
1074                    .detach_and_log_err(cx)
1075            }))
1076            .full_width()
1077            .child(
1078                div()
1079                    .flex()
1080                    .w_full()
1081                    .gap_2()
1082                    .child(
1083                        Label::new(conversation.mtime.format("%F %I:%M%p").to_string())
1084                            .color(Color::Muted)
1085                            .size(LabelSize::Small),
1086                    )
1087                    .child(Label::new(conversation.title.clone()).size(LabelSize::Small)),
1088            )
1089    }
1090
1091    fn open_conversation(&mut self, path: PathBuf, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
1092        cx.focus(&self.focus_handle);
1093
1094        if let Some(ix) = self.editor_index_for_path(&path, cx) {
1095            self.set_active_editor_index(Some(ix), cx);
1096            return Task::ready(Ok(()));
1097        }
1098
1099        let fs = self.fs.clone();
1100        let workspace = self.workspace.clone();
1101        let languages = self.languages.clone();
1102        cx.spawn(|this, mut cx| async move {
1103            let saved_conversation = fs.load(&path).await?;
1104            let saved_conversation = serde_json::from_str(&saved_conversation)?;
1105            let conversation =
1106                Conversation::deserialize(saved_conversation, path.clone(), languages, &mut cx)
1107                    .await?;
1108
1109            this.update(&mut cx, |this, cx| {
1110                // If, by the time we've loaded the conversation, the user has already opened
1111                // the same conversation, we don't want to open it again.
1112                if let Some(ix) = this.editor_index_for_path(&path, cx) {
1113                    this.set_active_editor_index(Some(ix), cx);
1114                } else {
1115                    let editor = cx.new_view(|cx| {
1116                        ConversationEditor::for_conversation(conversation, fs, workspace, cx)
1117                    });
1118                    this.add_conversation(editor, cx);
1119                }
1120            })?;
1121            Ok(())
1122        })
1123    }
1124
1125    fn editor_index_for_path(&self, path: &Path, cx: &AppContext) -> Option<usize> {
1126        self.editors
1127            .iter()
1128            .position(|editor| editor.read(cx).conversation.read(cx).path.as_deref() == Some(path))
1129    }
1130
1131    fn has_credentials(&mut self) -> bool {
1132        self.completion_provider.has_credentials()
1133    }
1134
1135    fn load_credentials(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
1136        let completion_provider = self.completion_provider.clone();
1137        cx.spawn(|_, mut cx| async move {
1138            if let Some(retrieve_credentials) = cx
1139                .update(|cx| completion_provider.retrieve_credentials(cx))
1140                .log_err()
1141            {
1142                retrieve_credentials.await;
1143            }
1144        })
1145    }
1146}
1147
1148fn build_api_key_editor(cx: &mut WindowContext) -> View<Editor> {
1149    cx.new_view(|cx| {
1150        let mut editor = Editor::single_line(cx);
1151        editor.set_placeholder_text("sk-000000000000000000000000000000000000000000000000", cx);
1152        editor
1153    })
1154}
1155
1156impl Render for AssistantPanel {
1157    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1158        if let Some(api_key_editor) = self.api_key_editor.clone() {
1159            const INSTRUCTIONS: [&'static str; 6] = [
1160                "To use the assistant panel or inline assistant, you need to add your OpenAI API key.",
1161                " - You can create an API key at: platform.openai.com/api-keys",
1162                " - Make sure your OpenAI account has credits",
1163                " - Having a subscription for another service like GitHub Copilot won't work.",
1164                " ",
1165                "Paste your OpenAI API key and press Enter to use the assistant:"
1166            ];
1167
1168            v_flex()
1169                .p_4()
1170                .size_full()
1171                .on_action(cx.listener(AssistantPanel::save_credentials))
1172                .track_focus(&self.focus_handle)
1173                .children(
1174                    INSTRUCTIONS.map(|instruction| Label::new(instruction).size(LabelSize::Small)),
1175                )
1176                .child(
1177                    h_flex()
1178                        .w_full()
1179                        .my_2()
1180                        .px_2()
1181                        .py_1()
1182                        .bg(cx.theme().colors().editor_background)
1183                        .rounded_md()
1184                        .child(self.render_api_key_editor(&api_key_editor, cx)),
1185                )
1186                .child(
1187                    h_flex()
1188                        .gap_2()
1189                        .child(Label::new("Click on").size(LabelSize::Small))
1190                        .child(Icon::new(IconName::Ai).size(IconSize::XSmall))
1191                        .child(
1192                            Label::new("in the status bar to close this panel.")
1193                                .size(LabelSize::Small),
1194                        ),
1195                )
1196        } else {
1197            let header = TabBar::new("assistant_header")
1198                .start_child(
1199                    h_flex().gap_1().child(Self::render_hamburger_button(cx)), // .children(title),
1200                )
1201                .children(self.active_editor().map(|editor| {
1202                    h_flex()
1203                        .h(rems(Tab::CONTAINER_HEIGHT_IN_REMS))
1204                        .flex_1()
1205                        .px_2()
1206                        .child(Label::new(editor.read(cx).title(cx)).into_element())
1207                }))
1208                .when(self.focus_handle.contains_focused(cx), |this| {
1209                    this.end_child(
1210                        h_flex()
1211                            .gap_2()
1212                            .when(self.active_editor().is_some(), |this| {
1213                                this.child(h_flex().gap_1().children(self.render_editor_tools(cx)))
1214                                    .child(
1215                                        ui::Divider::vertical()
1216                                            .inset()
1217                                            .color(ui::DividerColor::Border),
1218                                    )
1219                            })
1220                            .child(
1221                                h_flex()
1222                                    .gap_1()
1223                                    .child(Self::render_plus_button(cx))
1224                                    .child(self.render_zoom_button(cx)),
1225                            ),
1226                    )
1227                });
1228
1229            let contents = if self.active_editor().is_some() {
1230                let mut registrar = DivRegistrar::new(
1231                    |panel, cx| panel.toolbar.read(cx).item_of_type::<BufferSearchBar>(),
1232                    cx,
1233                );
1234                BufferSearchBar::register(&mut registrar);
1235                registrar.into_div()
1236            } else {
1237                div()
1238            };
1239            v_flex()
1240                .key_context("AssistantPanel")
1241                .size_full()
1242                .on_action(cx.listener(|this, _: &workspace::NewFile, cx| {
1243                    this.new_conversation(cx);
1244                }))
1245                .on_action(cx.listener(AssistantPanel::reset_credentials))
1246                .on_action(cx.listener(AssistantPanel::toggle_zoom))
1247                .on_action(cx.listener(AssistantPanel::deploy))
1248                .on_action(cx.listener(AssistantPanel::select_next_match))
1249                .on_action(cx.listener(AssistantPanel::select_prev_match))
1250                .on_action(cx.listener(AssistantPanel::handle_editor_cancel))
1251                .track_focus(&self.focus_handle)
1252                .child(header)
1253                .children(if self.toolbar.read(cx).hidden() {
1254                    None
1255                } else {
1256                    Some(self.toolbar.clone())
1257                })
1258                .child(
1259                    contents
1260                        .flex_1()
1261                        .child(if let Some(editor) = self.active_editor() {
1262                            editor.clone().into_any_element()
1263                        } else {
1264                            let view = cx.view().clone();
1265                            let scroll_handle = self.saved_conversations_scroll_handle.clone();
1266                            let conversation_count = self.saved_conversations.len();
1267                            canvas(move |bounds, cx| {
1268                                uniform_list(
1269                                    view,
1270                                    "saved_conversations",
1271                                    conversation_count,
1272                                    |this, range, cx| {
1273                                        range
1274                                            .map(|ix| this.render_saved_conversation(ix, cx))
1275                                            .collect()
1276                                    },
1277                                )
1278                                .track_scroll(scroll_handle)
1279                                .into_any_element()
1280                                .draw(
1281                                    bounds.origin,
1282                                    bounds.size.map(AvailableSpace::Definite),
1283                                    cx,
1284                                );
1285                            })
1286                            .size_full()
1287                            .into_any_element()
1288                        }),
1289                )
1290        }
1291    }
1292}
1293
1294impl Panel for AssistantPanel {
1295    fn persistent_name() -> &'static str {
1296        "AssistantPanel"
1297    }
1298
1299    fn position(&self, cx: &WindowContext) -> DockPosition {
1300        match AssistantSettings::get_global(cx).dock {
1301            AssistantDockPosition::Left => DockPosition::Left,
1302            AssistantDockPosition::Bottom => DockPosition::Bottom,
1303            AssistantDockPosition::Right => DockPosition::Right,
1304        }
1305    }
1306
1307    fn position_is_valid(&self, _: DockPosition) -> bool {
1308        true
1309    }
1310
1311    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1312        settings::update_settings_file::<AssistantSettings>(self.fs.clone(), cx, move |settings| {
1313            let dock = match position {
1314                DockPosition::Left => AssistantDockPosition::Left,
1315                DockPosition::Bottom => AssistantDockPosition::Bottom,
1316                DockPosition::Right => AssistantDockPosition::Right,
1317            };
1318            settings.dock = Some(dock);
1319        });
1320    }
1321
1322    fn size(&self, cx: &WindowContext) -> Pixels {
1323        let settings = AssistantSettings::get_global(cx);
1324        match self.position(cx) {
1325            DockPosition::Left | DockPosition::Right => {
1326                self.width.unwrap_or_else(|| settings.default_width)
1327            }
1328            DockPosition::Bottom => self.height.unwrap_or_else(|| settings.default_height),
1329        }
1330    }
1331
1332    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
1333        match self.position(cx) {
1334            DockPosition::Left | DockPosition::Right => self.width = size,
1335            DockPosition::Bottom => self.height = size,
1336        }
1337        cx.notify();
1338    }
1339
1340    fn is_zoomed(&self, _: &WindowContext) -> bool {
1341        self.zoomed
1342    }
1343
1344    fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1345        self.zoomed = zoomed;
1346        cx.notify();
1347    }
1348
1349    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
1350        if active {
1351            let load_credentials = self.load_credentials(cx);
1352            cx.spawn(|this, mut cx| async move {
1353                load_credentials.await;
1354                this.update(&mut cx, |this, cx| {
1355                    if !this.has_credentials() {
1356                        this.build_api_key_editor(cx);
1357                    } else if this.editors.is_empty() {
1358                        this.new_conversation(cx);
1359                    }
1360                })
1361            })
1362            .detach_and_log_err(cx);
1363        }
1364    }
1365
1366    fn icon(&self, cx: &WindowContext) -> Option<IconName> {
1367        Some(IconName::Ai).filter(|_| AssistantSettings::get_global(cx).button)
1368    }
1369
1370    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
1371        Some("Assistant Panel")
1372    }
1373
1374    fn toggle_action(&self) -> Box<dyn Action> {
1375        Box::new(ToggleFocus)
1376    }
1377}
1378
1379impl EventEmitter<PanelEvent> for AssistantPanel {}
1380
1381impl FocusableView for AssistantPanel {
1382    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1383        self.focus_handle.clone()
1384    }
1385}
1386
1387enum ConversationEvent {
1388    MessagesEdited,
1389    SummaryChanged,
1390    StreamedCompletion,
1391}
1392
1393#[derive(Default)]
1394struct Summary {
1395    text: String,
1396    done: bool,
1397}
1398
1399struct Conversation {
1400    id: Option<String>,
1401    buffer: Model<Buffer>,
1402    message_anchors: Vec<MessageAnchor>,
1403    messages_metadata: HashMap<MessageId, MessageMetadata>,
1404    next_message_id: MessageId,
1405    summary: Option<Summary>,
1406    pending_summary: Task<Option<()>>,
1407    completion_count: usize,
1408    pending_completions: Vec<PendingCompletion>,
1409    model: OpenAiModel,
1410    token_count: Option<usize>,
1411    max_token_count: usize,
1412    pending_token_count: Task<Option<()>>,
1413    pending_save: Task<Result<()>>,
1414    path: Option<PathBuf>,
1415    _subscriptions: Vec<Subscription>,
1416    completion_provider: Arc<dyn CompletionProvider>,
1417}
1418
1419impl EventEmitter<ConversationEvent> for Conversation {}
1420
1421impl Conversation {
1422    fn new(
1423        language_registry: Arc<LanguageRegistry>,
1424        cx: &mut ModelContext<Self>,
1425        completion_provider: Arc<dyn CompletionProvider>,
1426    ) -> Self {
1427        let markdown = language_registry.language_for_name("Markdown");
1428        let buffer = cx.new_model(|cx| {
1429            let mut buffer = Buffer::new(0, BufferId::new(cx.entity_id().as_u64()).unwrap(), "");
1430            buffer.set_language_registry(language_registry);
1431            cx.spawn(|buffer, mut cx| async move {
1432                let markdown = markdown.await?;
1433                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1434                    buffer.set_language(Some(markdown), cx)
1435                })?;
1436                anyhow::Ok(())
1437            })
1438            .detach_and_log_err(cx);
1439            buffer
1440        });
1441
1442        let settings = AssistantSettings::get_global(cx);
1443        let model = settings.default_open_ai_model.clone();
1444
1445        let mut this = Self {
1446            id: Some(Uuid::new_v4().to_string()),
1447            message_anchors: Default::default(),
1448            messages_metadata: Default::default(),
1449            next_message_id: Default::default(),
1450            summary: None,
1451            pending_summary: Task::ready(None),
1452            completion_count: Default::default(),
1453            pending_completions: Default::default(),
1454            token_count: None,
1455            max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1456            pending_token_count: Task::ready(None),
1457            model: model.clone(),
1458            _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1459            pending_save: Task::ready(Ok(())),
1460            path: None,
1461            buffer,
1462            completion_provider,
1463        };
1464        let message = MessageAnchor {
1465            id: MessageId(post_inc(&mut this.next_message_id.0)),
1466            start: language::Anchor::MIN,
1467        };
1468        this.message_anchors.push(message.clone());
1469        this.messages_metadata.insert(
1470            message.id,
1471            MessageMetadata {
1472                role: Role::User,
1473                sent_at: Local::now(),
1474                status: MessageStatus::Done,
1475            },
1476        );
1477
1478        this.count_remaining_tokens(cx);
1479        this
1480    }
1481
1482    fn serialize(&self, cx: &AppContext) -> SavedConversation {
1483        SavedConversation {
1484            id: self.id.clone(),
1485            zed: "conversation".into(),
1486            version: SavedConversation::VERSION.into(),
1487            text: self.buffer.read(cx).text(),
1488            message_metadata: self.messages_metadata.clone(),
1489            messages: self
1490                .messages(cx)
1491                .map(|message| SavedMessage {
1492                    id: message.id,
1493                    start: message.offset_range.start,
1494                })
1495                .collect(),
1496            summary: self
1497                .summary
1498                .as_ref()
1499                .map(|summary| summary.text.clone())
1500                .unwrap_or_default(),
1501            model: self.model.clone(),
1502        }
1503    }
1504
1505    async fn deserialize(
1506        saved_conversation: SavedConversation,
1507        path: PathBuf,
1508        language_registry: Arc<LanguageRegistry>,
1509        cx: &mut AsyncAppContext,
1510    ) -> Result<Model<Self>> {
1511        let id = match saved_conversation.id {
1512            Some(id) => Some(id),
1513            None => Some(Uuid::new_v4().to_string()),
1514        };
1515        let model = saved_conversation.model;
1516        let completion_provider: Arc<dyn CompletionProvider> = Arc::new(
1517            OpenAiCompletionProvider::new(
1518                model.full_name().into(),
1519                cx.background_executor().clone(),
1520            )
1521            .await,
1522        );
1523        cx.update(|cx| completion_provider.retrieve_credentials(cx))?
1524            .await;
1525
1526        let markdown = language_registry.language_for_name("Markdown");
1527        let mut message_anchors = Vec::new();
1528        let mut next_message_id = MessageId(0);
1529        let buffer = cx.new_model(|cx| {
1530            let mut buffer = Buffer::new(
1531                0,
1532                BufferId::new(cx.entity_id().as_u64()).unwrap(),
1533                saved_conversation.text,
1534            );
1535            for message in saved_conversation.messages {
1536                message_anchors.push(MessageAnchor {
1537                    id: message.id,
1538                    start: buffer.anchor_before(message.start),
1539                });
1540                next_message_id = cmp::max(next_message_id, MessageId(message.id.0 + 1));
1541            }
1542            buffer.set_language_registry(language_registry);
1543            cx.spawn(|buffer, mut cx| async move {
1544                let markdown = markdown.await?;
1545                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1546                    buffer.set_language(Some(markdown), cx)
1547                })?;
1548                anyhow::Ok(())
1549            })
1550            .detach_and_log_err(cx);
1551            buffer
1552        })?;
1553
1554        cx.new_model(|cx| {
1555            let mut this = Self {
1556                id,
1557                message_anchors,
1558                messages_metadata: saved_conversation.message_metadata,
1559                next_message_id,
1560                summary: Some(Summary {
1561                    text: saved_conversation.summary,
1562                    done: true,
1563                }),
1564                pending_summary: Task::ready(None),
1565                completion_count: Default::default(),
1566                pending_completions: Default::default(),
1567                token_count: None,
1568                max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1569                pending_token_count: Task::ready(None),
1570                model,
1571                _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1572                pending_save: Task::ready(Ok(())),
1573                path: Some(path),
1574                buffer,
1575                completion_provider,
1576            };
1577            this.count_remaining_tokens(cx);
1578            this
1579        })
1580    }
1581
1582    fn handle_buffer_event(
1583        &mut self,
1584        _: Model<Buffer>,
1585        event: &language::Event,
1586        cx: &mut ModelContext<Self>,
1587    ) {
1588        match event {
1589            language::Event::Edited => {
1590                self.count_remaining_tokens(cx);
1591                cx.emit(ConversationEvent::MessagesEdited);
1592            }
1593            _ => {}
1594        }
1595    }
1596
1597    fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
1598        let messages = self
1599            .messages(cx)
1600            .into_iter()
1601            .filter_map(|message| {
1602                Some(tiktoken_rs::ChatCompletionRequestMessage {
1603                    role: match message.role {
1604                        Role::User => "user".into(),
1605                        Role::Assistant => "assistant".into(),
1606                        Role::System => "system".into(),
1607                    },
1608                    content: Some(
1609                        self.buffer
1610                            .read(cx)
1611                            .text_for_range(message.offset_range)
1612                            .collect(),
1613                    ),
1614                    name: None,
1615                    function_call: None,
1616                })
1617            })
1618            .collect::<Vec<_>>();
1619        let model = self.model.clone();
1620        self.pending_token_count = cx.spawn(|this, mut cx| {
1621            async move {
1622                cx.background_executor()
1623                    .timer(Duration::from_millis(200))
1624                    .await;
1625                let token_count = cx
1626                    .background_executor()
1627                    .spawn(async move {
1628                        tiktoken_rs::num_tokens_from_messages(&model.full_name(), &messages)
1629                    })
1630                    .await?;
1631
1632                this.update(&mut cx, |this, cx| {
1633                    this.max_token_count =
1634                        tiktoken_rs::model::get_context_size(&this.model.full_name());
1635                    this.token_count = Some(token_count);
1636                    cx.notify()
1637                })?;
1638                anyhow::Ok(())
1639            }
1640            .log_err()
1641        });
1642    }
1643
1644    fn remaining_tokens(&self) -> Option<isize> {
1645        Some(self.max_token_count as isize - self.token_count? as isize)
1646    }
1647
1648    fn set_model(&mut self, model: OpenAiModel, cx: &mut ModelContext<Self>) {
1649        self.model = model;
1650        self.count_remaining_tokens(cx);
1651        cx.notify();
1652    }
1653
1654    fn assist(
1655        &mut self,
1656        selected_messages: HashSet<MessageId>,
1657        cx: &mut ModelContext<Self>,
1658    ) -> Vec<MessageAnchor> {
1659        let mut user_messages = Vec::new();
1660
1661        let last_message_id = if let Some(last_message_id) =
1662            self.message_anchors.iter().rev().find_map(|message| {
1663                message
1664                    .start
1665                    .is_valid(self.buffer.read(cx))
1666                    .then_some(message.id)
1667            }) {
1668            last_message_id
1669        } else {
1670            return Default::default();
1671        };
1672
1673        let mut should_assist = false;
1674        for selected_message_id in selected_messages {
1675            let selected_message_role =
1676                if let Some(metadata) = self.messages_metadata.get(&selected_message_id) {
1677                    metadata.role
1678                } else {
1679                    continue;
1680                };
1681
1682            if selected_message_role == Role::Assistant {
1683                if let Some(user_message) = self.insert_message_after(
1684                    selected_message_id,
1685                    Role::User,
1686                    MessageStatus::Done,
1687                    cx,
1688                ) {
1689                    user_messages.push(user_message);
1690                }
1691            } else {
1692                should_assist = true;
1693            }
1694        }
1695
1696        if should_assist {
1697            if !self.completion_provider.has_credentials() {
1698                log::info!("completion provider has no credentials");
1699                return Default::default();
1700            }
1701
1702            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1703                model: self.model.full_name().to_string(),
1704                messages: self
1705                    .messages(cx)
1706                    .filter(|message| matches!(message.status, MessageStatus::Done))
1707                    .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1708                    .collect(),
1709                stream: true,
1710                stop: vec![],
1711                temperature: 1.0,
1712            });
1713
1714            let stream = self.completion_provider.complete(request);
1715            let assistant_message = self
1716                .insert_message_after(last_message_id, Role::Assistant, MessageStatus::Pending, cx)
1717                .unwrap();
1718
1719            // Queue up the user's next reply.
1720            let user_message = self
1721                .insert_message_after(assistant_message.id, Role::User, MessageStatus::Done, cx)
1722                .unwrap();
1723            user_messages.push(user_message);
1724
1725            let task = cx.spawn({
1726                |this, mut cx| async move {
1727                    let assistant_message_id = assistant_message.id;
1728                    let stream_completion = async {
1729                        let mut messages = stream.await?;
1730
1731                        while let Some(message) = messages.next().await {
1732                            let text = message?;
1733
1734                            this.update(&mut cx, |this, cx| {
1735                                let message_ix = this
1736                                    .message_anchors
1737                                    .iter()
1738                                    .position(|message| message.id == assistant_message_id)?;
1739                                this.buffer.update(cx, |buffer, cx| {
1740                                    let offset = this.message_anchors[message_ix + 1..]
1741                                        .iter()
1742                                        .find(|message| message.start.is_valid(buffer))
1743                                        .map_or(buffer.len(), |message| {
1744                                            message.start.to_offset(buffer).saturating_sub(1)
1745                                        });
1746                                    buffer.edit([(offset..offset, text)], None, cx);
1747                                });
1748                                cx.emit(ConversationEvent::StreamedCompletion);
1749
1750                                Some(())
1751                            })?;
1752                            smol::future::yield_now().await;
1753                        }
1754
1755                        this.update(&mut cx, |this, cx| {
1756                            this.pending_completions
1757                                .retain(|completion| completion.id != this.completion_count);
1758                            this.summarize(cx);
1759                        })?;
1760
1761                        anyhow::Ok(())
1762                    };
1763
1764                    let result = stream_completion.await;
1765
1766                    this.update(&mut cx, |this, cx| {
1767                        if let Some(metadata) =
1768                            this.messages_metadata.get_mut(&assistant_message.id)
1769                        {
1770                            match result {
1771                                Ok(_) => {
1772                                    metadata.status = MessageStatus::Done;
1773                                }
1774                                Err(error) => {
1775                                    metadata.status = MessageStatus::Error(SharedString::from(
1776                                        error.to_string().trim().to_string(),
1777                                    ));
1778                                }
1779                            }
1780                            cx.notify();
1781                        }
1782                    })
1783                    .ok();
1784                }
1785            });
1786
1787            self.pending_completions.push(PendingCompletion {
1788                id: post_inc(&mut self.completion_count),
1789                _task: task,
1790            });
1791        }
1792
1793        user_messages
1794    }
1795
1796    fn cancel_last_assist(&mut self) -> bool {
1797        self.pending_completions.pop().is_some()
1798    }
1799
1800    fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
1801        for id in ids {
1802            if let Some(metadata) = self.messages_metadata.get_mut(&id) {
1803                metadata.role.cycle();
1804                cx.emit(ConversationEvent::MessagesEdited);
1805                cx.notify();
1806            }
1807        }
1808    }
1809
1810    fn insert_message_after(
1811        &mut self,
1812        message_id: MessageId,
1813        role: Role,
1814        status: MessageStatus,
1815        cx: &mut ModelContext<Self>,
1816    ) -> Option<MessageAnchor> {
1817        if let Some(prev_message_ix) = self
1818            .message_anchors
1819            .iter()
1820            .position(|message| message.id == message_id)
1821        {
1822            // Find the next valid message after the one we were given.
1823            let mut next_message_ix = prev_message_ix + 1;
1824            while let Some(next_message) = self.message_anchors.get(next_message_ix) {
1825                if next_message.start.is_valid(self.buffer.read(cx)) {
1826                    break;
1827                }
1828                next_message_ix += 1;
1829            }
1830
1831            let start = self.buffer.update(cx, |buffer, cx| {
1832                let offset = self
1833                    .message_anchors
1834                    .get(next_message_ix)
1835                    .map_or(buffer.len(), |message| message.start.to_offset(buffer) - 1);
1836                buffer.edit([(offset..offset, "\n")], None, cx);
1837                buffer.anchor_before(offset + 1)
1838            });
1839            let message = MessageAnchor {
1840                id: MessageId(post_inc(&mut self.next_message_id.0)),
1841                start,
1842            };
1843            self.message_anchors
1844                .insert(next_message_ix, message.clone());
1845            self.messages_metadata.insert(
1846                message.id,
1847                MessageMetadata {
1848                    role,
1849                    sent_at: Local::now(),
1850                    status,
1851                },
1852            );
1853            cx.emit(ConversationEvent::MessagesEdited);
1854            Some(message)
1855        } else {
1856            None
1857        }
1858    }
1859
1860    fn split_message(
1861        &mut self,
1862        range: Range<usize>,
1863        cx: &mut ModelContext<Self>,
1864    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
1865        let start_message = self.message_for_offset(range.start, cx);
1866        let end_message = self.message_for_offset(range.end, cx);
1867        if let Some((start_message, end_message)) = start_message.zip(end_message) {
1868            // Prevent splitting when range spans multiple messages.
1869            if start_message.id != end_message.id {
1870                return (None, None);
1871            }
1872
1873            let message = start_message;
1874            let role = message.role;
1875            let mut edited_buffer = false;
1876
1877            let mut suffix_start = None;
1878            if range.start > message.offset_range.start && range.end < message.offset_range.end - 1
1879            {
1880                if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
1881                    suffix_start = Some(range.end + 1);
1882                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
1883                    suffix_start = Some(range.end);
1884                }
1885            }
1886
1887            let suffix = if let Some(suffix_start) = suffix_start {
1888                MessageAnchor {
1889                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1890                    start: self.buffer.read(cx).anchor_before(suffix_start),
1891                }
1892            } else {
1893                self.buffer.update(cx, |buffer, cx| {
1894                    buffer.edit([(range.end..range.end, "\n")], None, cx);
1895                });
1896                edited_buffer = true;
1897                MessageAnchor {
1898                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1899                    start: self.buffer.read(cx).anchor_before(range.end + 1),
1900                }
1901            };
1902
1903            self.message_anchors
1904                .insert(message.index_range.end + 1, suffix.clone());
1905            self.messages_metadata.insert(
1906                suffix.id,
1907                MessageMetadata {
1908                    role,
1909                    sent_at: Local::now(),
1910                    status: MessageStatus::Done,
1911                },
1912            );
1913
1914            let new_messages =
1915                if range.start == range.end || range.start == message.offset_range.start {
1916                    (None, Some(suffix))
1917                } else {
1918                    let mut prefix_end = None;
1919                    if range.start > message.offset_range.start
1920                        && range.end < message.offset_range.end - 1
1921                    {
1922                        if self.buffer.read(cx).chars_at(range.start).next() == Some('\n') {
1923                            prefix_end = Some(range.start + 1);
1924                        } else if self.buffer.read(cx).reversed_chars_at(range.start).next()
1925                            == Some('\n')
1926                        {
1927                            prefix_end = Some(range.start);
1928                        }
1929                    }
1930
1931                    let selection = if let Some(prefix_end) = prefix_end {
1932                        cx.emit(ConversationEvent::MessagesEdited);
1933                        MessageAnchor {
1934                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1935                            start: self.buffer.read(cx).anchor_before(prefix_end),
1936                        }
1937                    } else {
1938                        self.buffer.update(cx, |buffer, cx| {
1939                            buffer.edit([(range.start..range.start, "\n")], None, cx)
1940                        });
1941                        edited_buffer = true;
1942                        MessageAnchor {
1943                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1944                            start: self.buffer.read(cx).anchor_before(range.end + 1),
1945                        }
1946                    };
1947
1948                    self.message_anchors
1949                        .insert(message.index_range.end + 1, selection.clone());
1950                    self.messages_metadata.insert(
1951                        selection.id,
1952                        MessageMetadata {
1953                            role,
1954                            sent_at: Local::now(),
1955                            status: MessageStatus::Done,
1956                        },
1957                    );
1958                    (Some(selection), Some(suffix))
1959                };
1960
1961            if !edited_buffer {
1962                cx.emit(ConversationEvent::MessagesEdited);
1963            }
1964            new_messages
1965        } else {
1966            (None, None)
1967        }
1968    }
1969
1970    fn summarize(&mut self, cx: &mut ModelContext<Self>) {
1971        if self.message_anchors.len() >= 2 && self.summary.is_none() {
1972            if !self.completion_provider.has_credentials() {
1973                return;
1974            }
1975
1976            let messages = self
1977                .messages(cx)
1978                .take(2)
1979                .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1980                .chain(Some(RequestMessage {
1981                    role: Role::User,
1982                    content: "Summarize the conversation into a short title without punctuation"
1983                        .into(),
1984                }));
1985            let request: Box<dyn CompletionRequest> = Box::new(OpenAiRequest {
1986                model: self.model.full_name().to_string(),
1987                messages: messages.collect(),
1988                stream: true,
1989                stop: vec![],
1990                temperature: 1.0,
1991            });
1992
1993            let stream = self.completion_provider.complete(request);
1994            self.pending_summary = cx.spawn(|this, mut cx| {
1995                async move {
1996                    let mut messages = stream.await?;
1997
1998                    while let Some(message) = messages.next().await {
1999                        let text = message?;
2000                        this.update(&mut cx, |this, cx| {
2001                            this.summary
2002                                .get_or_insert(Default::default())
2003                                .text
2004                                .push_str(&text);
2005                            cx.emit(ConversationEvent::SummaryChanged);
2006                        })?;
2007                    }
2008
2009                    this.update(&mut cx, |this, cx| {
2010                        if let Some(summary) = this.summary.as_mut() {
2011                            summary.done = true;
2012                            cx.emit(ConversationEvent::SummaryChanged);
2013                        }
2014                    })?;
2015
2016                    anyhow::Ok(())
2017                }
2018                .log_err()
2019            });
2020        }
2021    }
2022
2023    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
2024        self.messages_for_offsets([offset], cx).pop()
2025    }
2026
2027    fn messages_for_offsets(
2028        &self,
2029        offsets: impl IntoIterator<Item = usize>,
2030        cx: &AppContext,
2031    ) -> Vec<Message> {
2032        let mut result = Vec::new();
2033
2034        let mut messages = self.messages(cx).peekable();
2035        let mut offsets = offsets.into_iter().peekable();
2036        let mut current_message = messages.next();
2037        while let Some(offset) = offsets.next() {
2038            // Locate the message that contains the offset.
2039            while current_message.as_ref().map_or(false, |message| {
2040                !message.offset_range.contains(&offset) && messages.peek().is_some()
2041            }) {
2042                current_message = messages.next();
2043            }
2044            let Some(message) = current_message.as_ref() else {
2045                break;
2046            };
2047
2048            // Skip offsets that are in the same message.
2049            while offsets.peek().map_or(false, |offset| {
2050                message.offset_range.contains(offset) || messages.peek().is_none()
2051            }) {
2052                offsets.next();
2053            }
2054
2055            result.push(message.clone());
2056        }
2057        result
2058    }
2059
2060    fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
2061        let buffer = self.buffer.read(cx);
2062        let mut message_anchors = self.message_anchors.iter().enumerate().peekable();
2063        iter::from_fn(move || {
2064            while let Some((start_ix, message_anchor)) = message_anchors.next() {
2065                let metadata = self.messages_metadata.get(&message_anchor.id)?;
2066                let message_start = message_anchor.start.to_offset(buffer);
2067                let mut message_end = None;
2068                let mut end_ix = start_ix;
2069                while let Some((_, next_message)) = message_anchors.peek() {
2070                    if next_message.start.is_valid(buffer) {
2071                        message_end = Some(next_message.start);
2072                        break;
2073                    } else {
2074                        end_ix += 1;
2075                        message_anchors.next();
2076                    }
2077                }
2078                let message_end = message_end
2079                    .unwrap_or(language::Anchor::MAX)
2080                    .to_offset(buffer);
2081                return Some(Message {
2082                    index_range: start_ix..end_ix,
2083                    offset_range: message_start..message_end,
2084                    id: message_anchor.id,
2085                    anchor: message_anchor.start,
2086                    role: metadata.role,
2087                    sent_at: metadata.sent_at,
2088                    status: metadata.status.clone(),
2089                });
2090            }
2091            None
2092        })
2093    }
2094
2095    fn save(
2096        &mut self,
2097        debounce: Option<Duration>,
2098        fs: Arc<dyn Fs>,
2099        cx: &mut ModelContext<Conversation>,
2100    ) {
2101        self.pending_save = cx.spawn(|this, mut cx| async move {
2102            if let Some(debounce) = debounce {
2103                cx.background_executor().timer(debounce).await;
2104            }
2105
2106            let (old_path, summary) = this.read_with(&cx, |this, _| {
2107                let path = this.path.clone();
2108                let summary = if let Some(summary) = this.summary.as_ref() {
2109                    if summary.done {
2110                        Some(summary.text.clone())
2111                    } else {
2112                        None
2113                    }
2114                } else {
2115                    None
2116                };
2117                (path, summary)
2118            })?;
2119
2120            if let Some(summary) = summary {
2121                let conversation = this.read_with(&cx, |this, cx| this.serialize(cx))?;
2122                let path = if let Some(old_path) = old_path {
2123                    old_path
2124                } else {
2125                    let mut discriminant = 1;
2126                    let mut new_path;
2127                    loop {
2128                        new_path = CONVERSATIONS_DIR.join(&format!(
2129                            "{} - {}.zed.json",
2130                            summary.trim(),
2131                            discriminant
2132                        ));
2133                        if fs.is_file(&new_path).await {
2134                            discriminant += 1;
2135                        } else {
2136                            break;
2137                        }
2138                    }
2139                    new_path
2140                };
2141
2142                fs.create_dir(CONVERSATIONS_DIR.as_ref()).await?;
2143                fs.atomic_write(path.clone(), serde_json::to_string(&conversation).unwrap())
2144                    .await?;
2145                this.update(&mut cx, |this, _| this.path = Some(path))?;
2146            }
2147
2148            Ok(())
2149        });
2150    }
2151}
2152
2153struct PendingCompletion {
2154    id: usize,
2155    _task: Task<()>,
2156}
2157
2158enum ConversationEditorEvent {
2159    TabContentChanged,
2160}
2161
2162#[derive(Copy, Clone, Debug, PartialEq)]
2163struct ScrollPosition {
2164    offset_before_cursor: gpui::Point<f32>,
2165    cursor: Anchor,
2166}
2167
2168struct ConversationEditor {
2169    conversation: Model<Conversation>,
2170    fs: Arc<dyn Fs>,
2171    workspace: WeakView<Workspace>,
2172    editor: View<Editor>,
2173    blocks: HashSet<BlockId>,
2174    scroll_position: Option<ScrollPosition>,
2175    _subscriptions: Vec<Subscription>,
2176}
2177
2178impl ConversationEditor {
2179    fn new(
2180        completion_provider: Arc<dyn CompletionProvider>,
2181        language_registry: Arc<LanguageRegistry>,
2182        fs: Arc<dyn Fs>,
2183        workspace: WeakView<Workspace>,
2184        cx: &mut ViewContext<Self>,
2185    ) -> Self {
2186        let conversation =
2187            cx.new_model(|cx| Conversation::new(language_registry, cx, completion_provider));
2188        Self::for_conversation(conversation, fs, workspace, cx)
2189    }
2190
2191    fn for_conversation(
2192        conversation: Model<Conversation>,
2193        fs: Arc<dyn Fs>,
2194        workspace: WeakView<Workspace>,
2195        cx: &mut ViewContext<Self>,
2196    ) -> Self {
2197        let editor = cx.new_view(|cx| {
2198            let mut editor = Editor::for_buffer(conversation.read(cx).buffer.clone(), None, cx);
2199            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
2200            editor.set_show_gutter(false, cx);
2201            editor.set_show_wrap_guides(false, cx);
2202            editor
2203        });
2204
2205        let _subscriptions = vec![
2206            cx.observe(&conversation, |_, _, cx| cx.notify()),
2207            cx.subscribe(&conversation, Self::handle_conversation_event),
2208            cx.subscribe(&editor, Self::handle_editor_event),
2209        ];
2210
2211        let mut this = Self {
2212            conversation,
2213            editor,
2214            blocks: Default::default(),
2215            scroll_position: None,
2216            fs,
2217            workspace,
2218            _subscriptions,
2219        };
2220        this.update_message_headers(cx);
2221        this
2222    }
2223
2224    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
2225        report_assistant_event(
2226            self.workspace.clone(),
2227            self.conversation.read(cx).id.clone(),
2228            AssistantKind::Panel,
2229            cx,
2230        );
2231
2232        let cursors = self.cursors(cx);
2233
2234        let user_messages = self.conversation.update(cx, |conversation, cx| {
2235            let selected_messages = conversation
2236                .messages_for_offsets(cursors, cx)
2237                .into_iter()
2238                .map(|message| message.id)
2239                .collect();
2240            conversation.assist(selected_messages, cx)
2241        });
2242        let new_selections = user_messages
2243            .iter()
2244            .map(|message| {
2245                let cursor = message
2246                    .start
2247                    .to_offset(self.conversation.read(cx).buffer.read(cx));
2248                cursor..cursor
2249            })
2250            .collect::<Vec<_>>();
2251        if !new_selections.is_empty() {
2252            self.editor.update(cx, |editor, cx| {
2253                editor.change_selections(
2254                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
2255                    cx,
2256                    |selections| selections.select_ranges(new_selections),
2257                );
2258            });
2259            // Avoid scrolling to the new cursor position so the assistant's output is stable.
2260            cx.defer(|this, _| this.scroll_position = None);
2261        }
2262    }
2263
2264    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2265        if !self
2266            .conversation
2267            .update(cx, |conversation, _| conversation.cancel_last_assist())
2268        {
2269            cx.propagate();
2270        }
2271    }
2272
2273    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
2274        let cursors = self.cursors(cx);
2275        self.conversation.update(cx, |conversation, cx| {
2276            let messages = conversation
2277                .messages_for_offsets(cursors, cx)
2278                .into_iter()
2279                .map(|message| message.id)
2280                .collect();
2281            conversation.cycle_message_roles(messages, cx)
2282        });
2283    }
2284
2285    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
2286        let selections = self.editor.read(cx).selections.all::<usize>(cx);
2287        selections
2288            .into_iter()
2289            .map(|selection| selection.head())
2290            .collect()
2291    }
2292
2293    fn handle_conversation_event(
2294        &mut self,
2295        _: Model<Conversation>,
2296        event: &ConversationEvent,
2297        cx: &mut ViewContext<Self>,
2298    ) {
2299        match event {
2300            ConversationEvent::MessagesEdited => {
2301                self.update_message_headers(cx);
2302                self.conversation.update(cx, |conversation, cx| {
2303                    conversation.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
2304                });
2305            }
2306            ConversationEvent::SummaryChanged => {
2307                cx.emit(ConversationEditorEvent::TabContentChanged);
2308                self.conversation.update(cx, |conversation, cx| {
2309                    conversation.save(None, self.fs.clone(), cx);
2310                });
2311            }
2312            ConversationEvent::StreamedCompletion => {
2313                self.editor.update(cx, |editor, cx| {
2314                    if let Some(scroll_position) = self.scroll_position {
2315                        let snapshot = editor.snapshot(cx);
2316                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
2317                        let scroll_top =
2318                            cursor_point.row() as f32 - scroll_position.offset_before_cursor.y;
2319                        editor.set_scroll_position(
2320                            point(scroll_position.offset_before_cursor.x, scroll_top),
2321                            cx,
2322                        );
2323                    }
2324                });
2325            }
2326        }
2327    }
2328
2329    fn handle_editor_event(
2330        &mut self,
2331        _: View<Editor>,
2332        event: &EditorEvent,
2333        cx: &mut ViewContext<Self>,
2334    ) {
2335        match event {
2336            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
2337                let cursor_scroll_position = self.cursor_scroll_position(cx);
2338                if *autoscroll {
2339                    self.scroll_position = cursor_scroll_position;
2340                } else if self.scroll_position != cursor_scroll_position {
2341                    self.scroll_position = None;
2342                }
2343            }
2344            EditorEvent::SelectionsChanged { .. } => {
2345                self.scroll_position = self.cursor_scroll_position(cx);
2346            }
2347            _ => {}
2348        }
2349    }
2350
2351    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2352        self.editor.update(cx, |editor, cx| {
2353            let snapshot = editor.snapshot(cx);
2354            let cursor = editor.selections.newest_anchor().head();
2355            let cursor_row = cursor.to_display_point(&snapshot.display_snapshot).row() as f32;
2356            let scroll_position = editor
2357                .scroll_manager
2358                .anchor()
2359                .scroll_position(&snapshot.display_snapshot);
2360
2361            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2362            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2363                Some(ScrollPosition {
2364                    cursor,
2365                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2366                })
2367            } else {
2368                None
2369            }
2370        })
2371    }
2372
2373    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2374        self.editor.update(cx, |editor, cx| {
2375            let buffer = editor.buffer().read(cx).snapshot(cx);
2376            let excerpt_id = *buffer.as_singleton().unwrap().0;
2377            let old_blocks = std::mem::take(&mut self.blocks);
2378            let new_blocks = self
2379                .conversation
2380                .read(cx)
2381                .messages(cx)
2382                .map(|message| BlockProperties {
2383                    position: buffer.anchor_in_excerpt(excerpt_id, message.anchor),
2384                    height: 2,
2385                    style: BlockStyle::Sticky,
2386                    render: Arc::new({
2387                        let conversation = self.conversation.clone();
2388                        move |_cx| {
2389                            let message_id = message.id;
2390                            let sender = ButtonLike::new("role")
2391                                .style(ButtonStyle::Filled)
2392                                .child(match message.role {
2393                                    Role::User => Label::new("You").color(Color::Default),
2394                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2395                                    Role::System => Label::new("System").color(Color::Warning),
2396                                })
2397                                .tooltip(|cx| {
2398                                    Tooltip::with_meta(
2399                                        "Toggle message role",
2400                                        None,
2401                                        "Available roles: You (User), Assistant, System",
2402                                        cx,
2403                                    )
2404                                })
2405                                .on_click({
2406                                    let conversation = conversation.clone();
2407                                    move |_, cx| {
2408                                        conversation.update(cx, |conversation, cx| {
2409                                            conversation.cycle_message_roles(
2410                                                HashSet::from_iter(Some(message_id)),
2411                                                cx,
2412                                            )
2413                                        })
2414                                    }
2415                                });
2416
2417                            h_flex()
2418                                .id(("message_header", message_id.0))
2419                                .h_11()
2420                                .relative()
2421                                .gap_1()
2422                                .child(sender)
2423                                // TODO: Only show this if the message if the message has been sent
2424                                .child(
2425                                    Label::new(
2426                                        FormatDistance::from_now(DateTimeType::Local(
2427                                            message.sent_at,
2428                                        ))
2429                                        .hide_prefix(true)
2430                                        .add_suffix(true)
2431                                        .to_string(),
2432                                    )
2433                                    .size(LabelSize::XSmall)
2434                                    .color(Color::Muted),
2435                                )
2436                                .children(
2437                                    if let MessageStatus::Error(error) = message.status.clone() {
2438                                        Some(
2439                                            div()
2440                                                .id("error")
2441                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2442                                                .child(Icon::new(IconName::XCircle)),
2443                                        )
2444                                    } else {
2445                                        None
2446                                    },
2447                                )
2448                                .into_any_element()
2449                        }
2450                    }),
2451                    disposition: BlockDisposition::Above,
2452                })
2453                .collect::<Vec<_>>();
2454
2455            editor.remove_blocks(old_blocks, None, cx);
2456            let ids = editor.insert_blocks(new_blocks, None, cx);
2457            self.blocks = HashSet::from_iter(ids);
2458        });
2459    }
2460
2461    fn quote_selection(
2462        workspace: &mut Workspace,
2463        _: &QuoteSelection,
2464        cx: &mut ViewContext<Workspace>,
2465    ) {
2466        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2467            return;
2468        };
2469        let Some(editor) = workspace
2470            .active_item(cx)
2471            .and_then(|item| item.act_as::<Editor>(cx))
2472        else {
2473            return;
2474        };
2475
2476        let editor = editor.read(cx);
2477        let range = editor.selections.newest::<usize>(cx).range();
2478        let buffer = editor.buffer().read(cx).snapshot(cx);
2479        let start_language = buffer.language_at(range.start);
2480        let end_language = buffer.language_at(range.end);
2481        let language_name = if start_language == end_language {
2482            start_language.map(|language| language.name())
2483        } else {
2484            None
2485        };
2486        let language_name = language_name.as_deref().unwrap_or("").to_lowercase();
2487
2488        let selected_text = buffer.text_for_range(range).collect::<String>();
2489        let text = if selected_text.is_empty() {
2490            None
2491        } else {
2492            Some(if language_name == "markdown" {
2493                selected_text
2494                    .lines()
2495                    .map(|line| format!("> {}", line))
2496                    .collect::<Vec<_>>()
2497                    .join("\n")
2498            } else {
2499                format!("```{language_name}\n{selected_text}\n```")
2500            })
2501        };
2502
2503        // Activate the panel
2504        if !panel.focus_handle(cx).contains_focused(cx) {
2505            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2506        }
2507
2508        if let Some(text) = text {
2509            panel.update(cx, |panel, cx| {
2510                let conversation = panel
2511                    .active_editor()
2512                    .cloned()
2513                    .unwrap_or_else(|| panel.new_conversation(cx));
2514                conversation.update(cx, |conversation, cx| {
2515                    conversation
2516                        .editor
2517                        .update(cx, |editor, cx| editor.insert(&text, cx))
2518                });
2519            });
2520        }
2521    }
2522
2523    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2524        let editor = self.editor.read(cx);
2525        let conversation = self.conversation.read(cx);
2526        if editor.selections.count() == 1 {
2527            let selection = editor.selections.newest::<usize>(cx);
2528            let mut copied_text = String::new();
2529            let mut spanned_messages = 0;
2530            for message in conversation.messages(cx) {
2531                if message.offset_range.start >= selection.range().end {
2532                    break;
2533                } else if message.offset_range.end >= selection.range().start {
2534                    let range = cmp::max(message.offset_range.start, selection.range().start)
2535                        ..cmp::min(message.offset_range.end, selection.range().end);
2536                    if !range.is_empty() {
2537                        spanned_messages += 1;
2538                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2539                        for chunk in conversation.buffer.read(cx).text_for_range(range) {
2540                            copied_text.push_str(&chunk);
2541                        }
2542                        copied_text.push('\n');
2543                    }
2544                }
2545            }
2546
2547            if spanned_messages > 1 {
2548                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2549                return;
2550            }
2551        }
2552
2553        cx.propagate();
2554    }
2555
2556    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2557        self.conversation.update(cx, |conversation, cx| {
2558            let selections = self.editor.read(cx).selections.disjoint_anchors();
2559            for selection in selections.into_iter() {
2560                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2561                let range = selection
2562                    .map(|endpoint| endpoint.to_offset(&buffer))
2563                    .range();
2564                conversation.split_message(range, cx);
2565            }
2566        });
2567    }
2568
2569    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2570        self.conversation.update(cx, |conversation, cx| {
2571            conversation.save(None, self.fs.clone(), cx)
2572        });
2573    }
2574
2575    fn cycle_model(&mut self, cx: &mut ViewContext<Self>) {
2576        self.conversation.update(cx, |conversation, cx| {
2577            let new_model = conversation.model.cycle();
2578            conversation.set_model(new_model, cx);
2579        });
2580    }
2581
2582    fn title(&self, cx: &AppContext) -> String {
2583        self.conversation
2584            .read(cx)
2585            .summary
2586            .as_ref()
2587            .map(|summary| summary.text.clone())
2588            .unwrap_or_else(|| "New Conversation".into())
2589    }
2590
2591    fn render_current_model(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2592        Button::new(
2593            "current_model",
2594            self.conversation.read(cx).model.short_name(),
2595        )
2596        .style(ButtonStyle::Filled)
2597        .tooltip(move |cx| Tooltip::text("Change Model", cx))
2598        .on_click(cx.listener(|this, _, cx| this.cycle_model(cx)))
2599    }
2600
2601    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2602        let remaining_tokens = self.conversation.read(cx).remaining_tokens()?;
2603        let remaining_tokens_color = if remaining_tokens <= 0 {
2604            Color::Error
2605        } else if remaining_tokens <= 500 {
2606            Color::Warning
2607        } else {
2608            Color::Default
2609        };
2610        Some(Label::new(remaining_tokens.to_string()).color(remaining_tokens_color))
2611    }
2612}
2613
2614impl EventEmitter<ConversationEditorEvent> for ConversationEditor {}
2615
2616impl Render for ConversationEditor {
2617    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2618        div()
2619            .key_context("ConversationEditor")
2620            .capture_action(cx.listener(ConversationEditor::cancel_last_assist))
2621            .capture_action(cx.listener(ConversationEditor::save))
2622            .capture_action(cx.listener(ConversationEditor::copy))
2623            .capture_action(cx.listener(ConversationEditor::cycle_message_role))
2624            .on_action(cx.listener(ConversationEditor::assist))
2625            .on_action(cx.listener(ConversationEditor::split))
2626            .size_full()
2627            .relative()
2628            .child(
2629                div()
2630                    .size_full()
2631                    .pl_4()
2632                    .bg(cx.theme().colors().editor_background)
2633                    .child(self.editor.clone()),
2634            )
2635            .child(
2636                h_flex()
2637                    .absolute()
2638                    .gap_1()
2639                    .top_3()
2640                    .right_5()
2641                    .child(self.render_current_model(cx))
2642                    .children(self.render_remaining_tokens(cx)),
2643            )
2644    }
2645}
2646
2647impl FocusableView for ConversationEditor {
2648    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2649        self.editor.focus_handle(cx)
2650    }
2651}
2652
2653#[derive(Clone, Debug)]
2654struct MessageAnchor {
2655    id: MessageId,
2656    start: language::Anchor,
2657}
2658
2659#[derive(Clone, Debug)]
2660pub struct Message {
2661    offset_range: Range<usize>,
2662    index_range: Range<usize>,
2663    id: MessageId,
2664    anchor: language::Anchor,
2665    role: Role,
2666    sent_at: DateTime<Local>,
2667    status: MessageStatus,
2668}
2669
2670impl Message {
2671    fn to_open_ai_message(&self, buffer: &Buffer) -> RequestMessage {
2672        let content = buffer
2673            .text_for_range(self.offset_range.clone())
2674            .collect::<String>();
2675        RequestMessage {
2676            role: self.role,
2677            content: content.trim_end().into(),
2678        }
2679    }
2680}
2681
2682enum InlineAssistantEvent {
2683    Confirmed {
2684        prompt: String,
2685        include_conversation: bool,
2686        retrieve_context: bool,
2687    },
2688    Canceled,
2689    Dismissed,
2690    IncludeConversationToggled {
2691        include_conversation: bool,
2692    },
2693    RetrieveContextToggled {
2694        retrieve_context: bool,
2695    },
2696}
2697
2698struct InlineAssistant {
2699    id: usize,
2700    prompt_editor: View<Editor>,
2701    workspace: WeakView<Workspace>,
2702    confirmed: bool,
2703    include_conversation: bool,
2704    measurements: Rc<Cell<BlockMeasurements>>,
2705    prompt_history: VecDeque<String>,
2706    prompt_history_ix: Option<usize>,
2707    pending_prompt: String,
2708    codegen: Model<Codegen>,
2709    _subscriptions: Vec<Subscription>,
2710    retrieve_context: bool,
2711    semantic_index: Option<Model<SemanticIndex>>,
2712    semantic_permissioned: Option<bool>,
2713    project: WeakModel<Project>,
2714    maintain_rate_limit: Option<Task<()>>,
2715}
2716
2717impl EventEmitter<InlineAssistantEvent> for InlineAssistant {}
2718
2719impl Render for InlineAssistant {
2720    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2721        let measurements = self.measurements.get();
2722        h_flex()
2723            .w_full()
2724            .py_2()
2725            .border_y_1()
2726            .border_color(cx.theme().colors().border)
2727            .on_action(cx.listener(Self::confirm))
2728            .on_action(cx.listener(Self::cancel))
2729            .on_action(cx.listener(Self::toggle_include_conversation))
2730            .on_action(cx.listener(Self::toggle_retrieve_context))
2731            .on_action(cx.listener(Self::move_up))
2732            .on_action(cx.listener(Self::move_down))
2733            .child(
2734                h_flex()
2735                    .justify_center()
2736                    .w(measurements.gutter_width)
2737                    .child(
2738                        IconButton::new("include_conversation", IconName::Ai)
2739                            .on_click(cx.listener(|this, _, cx| {
2740                                this.toggle_include_conversation(&ToggleIncludeConversation, cx)
2741                            }))
2742                            .selected(self.include_conversation)
2743                            .tooltip(|cx| {
2744                                Tooltip::for_action(
2745                                    "Include Conversation",
2746                                    &ToggleIncludeConversation,
2747                                    cx,
2748                                )
2749                            }),
2750                    )
2751                    .children(if SemanticIndex::enabled(cx) {
2752                        Some(
2753                            IconButton::new("retrieve_context", IconName::MagnifyingGlass)
2754                                .on_click(cx.listener(|this, _, cx| {
2755                                    this.toggle_retrieve_context(&ToggleRetrieveContext, cx)
2756                                }))
2757                                .selected(self.retrieve_context)
2758                                .tooltip(|cx| {
2759                                    Tooltip::for_action(
2760                                        "Retrieve Context",
2761                                        &ToggleRetrieveContext,
2762                                        cx,
2763                                    )
2764                                }),
2765                        )
2766                    } else {
2767                        None
2768                    })
2769                    .children(if let Some(error) = self.codegen.read(cx).error() {
2770                        let error_message = SharedString::from(error.to_string());
2771                        Some(
2772                            div()
2773                                .id("error")
2774                                .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
2775                                .child(Icon::new(IconName::XCircle).color(Color::Error)),
2776                        )
2777                    } else {
2778                        None
2779                    }),
2780            )
2781            .child(
2782                h_flex()
2783                    .w_full()
2784                    .ml(measurements.anchor_x - measurements.gutter_width)
2785                    .child(self.render_prompt_editor(cx)),
2786            )
2787            .children(if self.retrieve_context {
2788                self.retrieve_context_status(cx)
2789            } else {
2790                None
2791            })
2792    }
2793}
2794
2795impl FocusableView for InlineAssistant {
2796    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2797        self.prompt_editor.focus_handle(cx)
2798    }
2799}
2800
2801impl InlineAssistant {
2802    fn new(
2803        id: usize,
2804        measurements: Rc<Cell<BlockMeasurements>>,
2805        include_conversation: bool,
2806        prompt_history: VecDeque<String>,
2807        codegen: Model<Codegen>,
2808        workspace: WeakView<Workspace>,
2809        cx: &mut ViewContext<Self>,
2810        retrieve_context: bool,
2811        semantic_index: Option<Model<SemanticIndex>>,
2812        project: Model<Project>,
2813    ) -> Self {
2814        let prompt_editor = cx.new_view(|cx| {
2815            let mut editor = Editor::single_line(cx);
2816            let placeholder = match codegen.read(cx).kind() {
2817                CodegenKind::Transform { .. } => "Enter transformation prompt…",
2818                CodegenKind::Generate { .. } => "Enter generation prompt…",
2819            };
2820            editor.set_placeholder_text(placeholder, cx);
2821            editor
2822        });
2823        cx.focus_view(&prompt_editor);
2824
2825        let mut subscriptions = vec![
2826            cx.observe(&codegen, Self::handle_codegen_changed),
2827            cx.subscribe(&prompt_editor, Self::handle_prompt_editor_events),
2828        ];
2829
2830        if let Some(semantic_index) = semantic_index.clone() {
2831            subscriptions.push(cx.observe(&semantic_index, Self::semantic_index_changed));
2832        }
2833
2834        let assistant = Self {
2835            id,
2836            prompt_editor,
2837            workspace,
2838            confirmed: false,
2839            include_conversation,
2840            measurements,
2841            prompt_history,
2842            prompt_history_ix: None,
2843            pending_prompt: String::new(),
2844            codegen,
2845            _subscriptions: subscriptions,
2846            retrieve_context,
2847            semantic_permissioned: None,
2848            semantic_index,
2849            project: project.downgrade(),
2850            maintain_rate_limit: None,
2851        };
2852
2853        assistant.index_project(cx).log_err();
2854
2855        assistant
2856    }
2857
2858    fn semantic_permissioned(&self, cx: &mut ViewContext<Self>) -> Task<Result<bool>> {
2859        if let Some(value) = self.semantic_permissioned {
2860            return Task::ready(Ok(value));
2861        }
2862
2863        let Some(project) = self.project.upgrade() else {
2864            return Task::ready(Err(anyhow!("project was dropped")));
2865        };
2866
2867        self.semantic_index
2868            .as_ref()
2869            .map(|semantic| {
2870                semantic.update(cx, |this, cx| this.project_previously_indexed(&project, cx))
2871            })
2872            .unwrap_or(Task::ready(Ok(false)))
2873    }
2874
2875    fn handle_prompt_editor_events(
2876        &mut self,
2877        _: View<Editor>,
2878        event: &EditorEvent,
2879        cx: &mut ViewContext<Self>,
2880    ) {
2881        if let EditorEvent::Edited = event {
2882            self.pending_prompt = self.prompt_editor.read(cx).text(cx);
2883            cx.notify();
2884        }
2885    }
2886
2887    fn semantic_index_changed(
2888        &mut self,
2889        semantic_index: Model<SemanticIndex>,
2890        cx: &mut ViewContext<Self>,
2891    ) {
2892        let Some(project) = self.project.upgrade() else {
2893            return;
2894        };
2895
2896        let status = semantic_index.read(cx).status(&project);
2897        match status {
2898            SemanticIndexStatus::Indexing {
2899                rate_limit_expiry: Some(_),
2900                ..
2901            } => {
2902                if self.maintain_rate_limit.is_none() {
2903                    self.maintain_rate_limit = Some(cx.spawn(|this, mut cx| async move {
2904                        loop {
2905                            cx.background_executor().timer(Duration::from_secs(1)).await;
2906                            this.update(&mut cx, |_, cx| cx.notify()).log_err();
2907                        }
2908                    }));
2909                }
2910                return;
2911            }
2912            _ => {
2913                self.maintain_rate_limit = None;
2914            }
2915        }
2916    }
2917
2918    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
2919        let is_read_only = !self.codegen.read(cx).idle();
2920        self.prompt_editor.update(cx, |editor, cx| {
2921            let was_read_only = editor.read_only(cx);
2922            if was_read_only != is_read_only {
2923                if is_read_only {
2924                    editor.set_read_only(true);
2925                } else {
2926                    self.confirmed = false;
2927                    editor.set_read_only(false);
2928                }
2929            }
2930        });
2931        cx.notify();
2932    }
2933
2934    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2935        cx.emit(InlineAssistantEvent::Canceled);
2936    }
2937
2938    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
2939        if self.confirmed {
2940            cx.emit(InlineAssistantEvent::Dismissed);
2941        } else {
2942            report_assistant_event(self.workspace.clone(), None, AssistantKind::Inline, cx);
2943
2944            let prompt = self.prompt_editor.read(cx).text(cx);
2945            self.prompt_editor
2946                .update(cx, |editor, _cx| editor.set_read_only(true));
2947            cx.emit(InlineAssistantEvent::Confirmed {
2948                prompt,
2949                include_conversation: self.include_conversation,
2950                retrieve_context: self.retrieve_context,
2951            });
2952            self.confirmed = true;
2953            cx.notify();
2954        }
2955    }
2956
2957    fn toggle_retrieve_context(&mut self, _: &ToggleRetrieveContext, cx: &mut ViewContext<Self>) {
2958        let semantic_permissioned = self.semantic_permissioned(cx);
2959
2960        let Some(project) = self.project.upgrade() else {
2961            return;
2962        };
2963
2964        let project_name = project
2965            .read(cx)
2966            .worktree_root_names(cx)
2967            .collect::<Vec<&str>>()
2968            .join("/");
2969        let is_plural = project_name.chars().filter(|letter| *letter == '/').count() > 0;
2970        let prompt_text = format!("Would you like to index the '{}' project{} for context retrieval? This requires sending code to the OpenAI API", project_name,
2971            if is_plural {
2972                "s"
2973            } else {""});
2974
2975        cx.spawn(|this, mut cx| async move {
2976            // If Necessary prompt user
2977            if !semantic_permissioned.await.unwrap_or(false) {
2978                let answer = this.update(&mut cx, |_, cx| {
2979                    cx.prompt(
2980                        PromptLevel::Info,
2981                        prompt_text.as_str(),
2982                        None,
2983                        &["Continue", "Cancel"],
2984                    )
2985                })?;
2986
2987                if answer.await? == 0 {
2988                    this.update(&mut cx, |this, _| {
2989                        this.semantic_permissioned = Some(true);
2990                    })?;
2991                } else {
2992                    return anyhow::Ok(());
2993                }
2994            }
2995
2996            // If permissioned, update context appropriately
2997            this.update(&mut cx, |this, cx| {
2998                this.retrieve_context = !this.retrieve_context;
2999
3000                cx.emit(InlineAssistantEvent::RetrieveContextToggled {
3001                    retrieve_context: this.retrieve_context,
3002                });
3003
3004                if this.retrieve_context {
3005                    this.index_project(cx).log_err();
3006                }
3007
3008                cx.notify();
3009            })?;
3010
3011            anyhow::Ok(())
3012        })
3013        .detach_and_log_err(cx);
3014    }
3015
3016    fn index_project(&self, cx: &mut ViewContext<Self>) -> anyhow::Result<()> {
3017        let Some(project) = self.project.upgrade() else {
3018            return Err(anyhow!("project was dropped!"));
3019        };
3020
3021        let semantic_permissioned = self.semantic_permissioned(cx);
3022        if let Some(semantic_index) = SemanticIndex::global(cx) {
3023            cx.spawn(|_, mut cx| async move {
3024                // This has to be updated to accommodate for semantic_permissions
3025                if semantic_permissioned.await.unwrap_or(false) {
3026                    semantic_index
3027                        .update(&mut cx, |index, cx| index.index_project(project, cx))?
3028                        .await
3029                } else {
3030                    Err(anyhow!("project is not permissioned for semantic indexing"))
3031                }
3032            })
3033            .detach_and_log_err(cx);
3034        }
3035
3036        anyhow::Ok(())
3037    }
3038
3039    fn retrieve_context_status(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
3040        let Some(project) = self.project.upgrade() else {
3041            return None;
3042        };
3043
3044        let semantic_index = SemanticIndex::global(cx)?;
3045        let status = semantic_index.update(cx, |index, _| index.status(&project));
3046        match status {
3047            SemanticIndexStatus::NotAuthenticated {} => Some(
3048                div()
3049                    .id("error")
3050                    .tooltip(|cx| Tooltip::text("Not Authenticated. Please ensure you have a valid 'OPENAI_API_KEY' in your environment variables.", cx))
3051                    .child(Icon::new(IconName::XCircle))
3052                    .into_any_element()
3053            ),
3054
3055            SemanticIndexStatus::NotIndexed {} => Some(
3056                div()
3057                    .id("error")
3058                    .tooltip(|cx| Tooltip::text("Not Indexed", cx))
3059                    .child(Icon::new(IconName::XCircle))
3060                    .into_any_element()
3061            ),
3062
3063            SemanticIndexStatus::Indexing {
3064                remaining_files,
3065                rate_limit_expiry,
3066            } => {
3067                let mut status_text = if remaining_files == 0 {
3068                    "Indexing...".to_string()
3069                } else {
3070                    format!("Remaining files to index: {remaining_files}")
3071                };
3072
3073                if let Some(rate_limit_expiry) = rate_limit_expiry {
3074                    let remaining_seconds = rate_limit_expiry.duration_since(Instant::now());
3075                    if remaining_seconds > Duration::from_secs(0) && remaining_files > 0 {
3076                        write!(
3077                            status_text,
3078                            " (rate limit expires in {}s)",
3079                            remaining_seconds.as_secs()
3080                        )
3081                        .unwrap();
3082                    }
3083                }
3084
3085                let status_text = SharedString::from(status_text);
3086                Some(
3087                    div()
3088                        .id("update")
3089                        .tooltip(move |cx| Tooltip::text(status_text.clone(), cx))
3090                        .child(Icon::new(IconName::Update).color(Color::Info))
3091                        .into_any_element()
3092                )
3093            }
3094
3095            SemanticIndexStatus::Indexed {} => Some(
3096                div()
3097                    .id("check")
3098                    .tooltip(|cx| Tooltip::text("Index up to date", cx))
3099                    .child(Icon::new(IconName::Check).color(Color::Success))
3100                    .into_any_element()
3101            ),
3102        }
3103    }
3104
3105    fn toggle_include_conversation(
3106        &mut self,
3107        _: &ToggleIncludeConversation,
3108        cx: &mut ViewContext<Self>,
3109    ) {
3110        self.include_conversation = !self.include_conversation;
3111        cx.emit(InlineAssistantEvent::IncludeConversationToggled {
3112            include_conversation: self.include_conversation,
3113        });
3114        cx.notify();
3115    }
3116
3117    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3118        if let Some(ix) = self.prompt_history_ix {
3119            if ix > 0 {
3120                self.prompt_history_ix = Some(ix - 1);
3121                let prompt = self.prompt_history[ix - 1].clone();
3122                self.set_prompt(&prompt, cx);
3123            }
3124        } else if !self.prompt_history.is_empty() {
3125            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
3126            let prompt = self.prompt_history[self.prompt_history.len() - 1].clone();
3127            self.set_prompt(&prompt, cx);
3128        }
3129    }
3130
3131    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3132        if let Some(ix) = self.prompt_history_ix {
3133            if ix < self.prompt_history.len() - 1 {
3134                self.prompt_history_ix = Some(ix + 1);
3135                let prompt = self.prompt_history[ix + 1].clone();
3136                self.set_prompt(&prompt, cx);
3137            } else {
3138                self.prompt_history_ix = None;
3139                let pending_prompt = self.pending_prompt.clone();
3140                self.set_prompt(&pending_prompt, cx);
3141            }
3142        }
3143    }
3144
3145    fn set_prompt(&mut self, prompt: &str, cx: &mut ViewContext<Self>) {
3146        self.prompt_editor.update(cx, |editor, cx| {
3147            editor.buffer().update(cx, |buffer, cx| {
3148                let len = buffer.len(cx);
3149                buffer.edit([(0..len, prompt)], None, cx);
3150            });
3151        });
3152    }
3153
3154    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3155        let settings = ThemeSettings::get_global(cx);
3156        let text_style = TextStyle {
3157            color: if self.prompt_editor.read(cx).read_only(cx) {
3158                cx.theme().colors().text_disabled
3159            } else {
3160                cx.theme().colors().text
3161            },
3162            font_family: settings.ui_font.family.clone(),
3163            font_features: settings.ui_font.features,
3164            font_size: rems(0.875).into(),
3165            font_weight: FontWeight::NORMAL,
3166            font_style: FontStyle::Normal,
3167            line_height: relative(1.3).into(),
3168            background_color: None,
3169            underline: None,
3170            strikethrough: None,
3171            white_space: WhiteSpace::Normal,
3172        };
3173        EditorElement::new(
3174            &self.prompt_editor,
3175            EditorStyle {
3176                background: cx.theme().colors().editor_background,
3177                local_player: cx.theme().players().local(),
3178                text: text_style,
3179                ..Default::default()
3180            },
3181        )
3182    }
3183}
3184
3185// This wouldn't need to exist if we could pass parameters when rendering child views.
3186#[derive(Copy, Clone, Default)]
3187struct BlockMeasurements {
3188    anchor_x: Pixels,
3189    gutter_width: Pixels,
3190}
3191
3192struct PendingInlineAssist {
3193    editor: WeakView<Editor>,
3194    inline_assistant: Option<(BlockId, View<InlineAssistant>)>,
3195    codegen: Model<Codegen>,
3196    _subscriptions: Vec<Subscription>,
3197    project: WeakModel<Project>,
3198}
3199
3200fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3201    ranges.sort_unstable_by(|a, b| {
3202        a.start
3203            .cmp(&b.start, buffer)
3204            .then_with(|| b.end.cmp(&a.end, buffer))
3205    });
3206
3207    let mut ix = 0;
3208    while ix + 1 < ranges.len() {
3209        let b = ranges[ix + 1].clone();
3210        let a = &mut ranges[ix];
3211        if a.end.cmp(&b.start, buffer).is_gt() {
3212            if a.end.cmp(&b.end, buffer).is_lt() {
3213                a.end = b.end;
3214            }
3215            ranges.remove(ix + 1);
3216        } else {
3217            ix += 1;
3218        }
3219    }
3220}
3221
3222#[cfg(test)]
3223mod tests {
3224    use super::*;
3225    use crate::MessageId;
3226    use ai::test::FakeCompletionProvider;
3227    use gpui::{AppContext, TestAppContext};
3228    use settings::SettingsStore;
3229
3230    #[gpui::test]
3231    fn test_inserting_and_removing_messages(cx: &mut AppContext) {
3232        let settings_store = SettingsStore::test(cx);
3233        cx.set_global(settings_store);
3234        init(cx);
3235        let registry = Arc::new(LanguageRegistry::test());
3236
3237        let completion_provider = Arc::new(FakeCompletionProvider::new());
3238        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3239        let buffer = conversation.read(cx).buffer.clone();
3240
3241        let message_1 = conversation.read(cx).message_anchors[0].clone();
3242        assert_eq!(
3243            messages(&conversation, cx),
3244            vec![(message_1.id, Role::User, 0..0)]
3245        );
3246
3247        let message_2 = conversation.update(cx, |conversation, cx| {
3248            conversation
3249                .insert_message_after(message_1.id, Role::Assistant, MessageStatus::Done, cx)
3250                .unwrap()
3251        });
3252        assert_eq!(
3253            messages(&conversation, cx),
3254            vec![
3255                (message_1.id, Role::User, 0..1),
3256                (message_2.id, Role::Assistant, 1..1)
3257            ]
3258        );
3259
3260        buffer.update(cx, |buffer, cx| {
3261            buffer.edit([(0..0, "1"), (1..1, "2")], None, cx)
3262        });
3263        assert_eq!(
3264            messages(&conversation, cx),
3265            vec![
3266                (message_1.id, Role::User, 0..2),
3267                (message_2.id, Role::Assistant, 2..3)
3268            ]
3269        );
3270
3271        let message_3 = conversation.update(cx, |conversation, cx| {
3272            conversation
3273                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3274                .unwrap()
3275        });
3276        assert_eq!(
3277            messages(&conversation, cx),
3278            vec![
3279                (message_1.id, Role::User, 0..2),
3280                (message_2.id, Role::Assistant, 2..4),
3281                (message_3.id, Role::User, 4..4)
3282            ]
3283        );
3284
3285        let message_4 = conversation.update(cx, |conversation, cx| {
3286            conversation
3287                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3288                .unwrap()
3289        });
3290        assert_eq!(
3291            messages(&conversation, cx),
3292            vec![
3293                (message_1.id, Role::User, 0..2),
3294                (message_2.id, Role::Assistant, 2..4),
3295                (message_4.id, Role::User, 4..5),
3296                (message_3.id, Role::User, 5..5),
3297            ]
3298        );
3299
3300        buffer.update(cx, |buffer, cx| {
3301            buffer.edit([(4..4, "C"), (5..5, "D")], None, cx)
3302        });
3303        assert_eq!(
3304            messages(&conversation, cx),
3305            vec![
3306                (message_1.id, Role::User, 0..2),
3307                (message_2.id, Role::Assistant, 2..4),
3308                (message_4.id, Role::User, 4..6),
3309                (message_3.id, Role::User, 6..7),
3310            ]
3311        );
3312
3313        // Deleting across message boundaries merges the messages.
3314        buffer.update(cx, |buffer, cx| buffer.edit([(1..4, "")], None, cx));
3315        assert_eq!(
3316            messages(&conversation, cx),
3317            vec![
3318                (message_1.id, Role::User, 0..3),
3319                (message_3.id, Role::User, 3..4),
3320            ]
3321        );
3322
3323        // Undoing the deletion should also undo the merge.
3324        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3325        assert_eq!(
3326            messages(&conversation, cx),
3327            vec![
3328                (message_1.id, Role::User, 0..2),
3329                (message_2.id, Role::Assistant, 2..4),
3330                (message_4.id, Role::User, 4..6),
3331                (message_3.id, Role::User, 6..7),
3332            ]
3333        );
3334
3335        // Redoing the deletion should also redo the merge.
3336        buffer.update(cx, |buffer, cx| buffer.redo(cx));
3337        assert_eq!(
3338            messages(&conversation, cx),
3339            vec![
3340                (message_1.id, Role::User, 0..3),
3341                (message_3.id, Role::User, 3..4),
3342            ]
3343        );
3344
3345        // Ensure we can still insert after a merged message.
3346        let message_5 = conversation.update(cx, |conversation, cx| {
3347            conversation
3348                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3349                .unwrap()
3350        });
3351        assert_eq!(
3352            messages(&conversation, cx),
3353            vec![
3354                (message_1.id, Role::User, 0..3),
3355                (message_5.id, Role::System, 3..4),
3356                (message_3.id, Role::User, 4..5)
3357            ]
3358        );
3359    }
3360
3361    #[gpui::test]
3362    fn test_message_splitting(cx: &mut AppContext) {
3363        let settings_store = SettingsStore::test(cx);
3364        cx.set_global(settings_store);
3365        init(cx);
3366        let registry = Arc::new(LanguageRegistry::test());
3367        let completion_provider = Arc::new(FakeCompletionProvider::new());
3368
3369        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3370        let buffer = conversation.read(cx).buffer.clone();
3371
3372        let message_1 = conversation.read(cx).message_anchors[0].clone();
3373        assert_eq!(
3374            messages(&conversation, cx),
3375            vec![(message_1.id, Role::User, 0..0)]
3376        );
3377
3378        buffer.update(cx, |buffer, cx| {
3379            buffer.edit([(0..0, "aaa\nbbb\nccc\nddd\n")], None, cx)
3380        });
3381
3382        let (_, message_2) =
3383            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3384        let message_2 = message_2.unwrap();
3385
3386        // We recycle newlines in the middle of a split message
3387        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\nddd\n");
3388        assert_eq!(
3389            messages(&conversation, cx),
3390            vec![
3391                (message_1.id, Role::User, 0..4),
3392                (message_2.id, Role::User, 4..16),
3393            ]
3394        );
3395
3396        let (_, message_3) =
3397            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3398        let message_3 = message_3.unwrap();
3399
3400        // We don't recycle newlines at the end of a split message
3401        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3402        assert_eq!(
3403            messages(&conversation, cx),
3404            vec![
3405                (message_1.id, Role::User, 0..4),
3406                (message_3.id, Role::User, 4..5),
3407                (message_2.id, Role::User, 5..17),
3408            ]
3409        );
3410
3411        let (_, message_4) =
3412            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3413        let message_4 = message_4.unwrap();
3414        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3415        assert_eq!(
3416            messages(&conversation, cx),
3417            vec![
3418                (message_1.id, Role::User, 0..4),
3419                (message_3.id, Role::User, 4..5),
3420                (message_2.id, Role::User, 5..9),
3421                (message_4.id, Role::User, 9..17),
3422            ]
3423        );
3424
3425        let (_, message_5) =
3426            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3427        let message_5 = message_5.unwrap();
3428        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\nddd\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..18),
3437            ]
3438        );
3439
3440        let (message_6, message_7) = conversation.update(cx, |conversation, cx| {
3441            conversation.split_message(14..16, cx)
3442        });
3443        let message_6 = message_6.unwrap();
3444        let message_7 = message_7.unwrap();
3445        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\ndd\nd\n");
3446        assert_eq!(
3447            messages(&conversation, cx),
3448            vec![
3449                (message_1.id, Role::User, 0..4),
3450                (message_3.id, Role::User, 4..5),
3451                (message_2.id, Role::User, 5..9),
3452                (message_4.id, Role::User, 9..10),
3453                (message_5.id, Role::User, 10..14),
3454                (message_6.id, Role::User, 14..17),
3455                (message_7.id, Role::User, 17..19),
3456            ]
3457        );
3458    }
3459
3460    #[gpui::test]
3461    fn test_messages_for_offsets(cx: &mut AppContext) {
3462        let settings_store = SettingsStore::test(cx);
3463        cx.set_global(settings_store);
3464        init(cx);
3465        let registry = Arc::new(LanguageRegistry::test());
3466        let completion_provider = Arc::new(FakeCompletionProvider::new());
3467        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3468        let buffer = conversation.read(cx).buffer.clone();
3469
3470        let message_1 = conversation.read(cx).message_anchors[0].clone();
3471        assert_eq!(
3472            messages(&conversation, cx),
3473            vec![(message_1.id, Role::User, 0..0)]
3474        );
3475
3476        buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "aaa")], None, cx));
3477        let message_2 = conversation
3478            .update(cx, |conversation, cx| {
3479                conversation.insert_message_after(message_1.id, Role::User, MessageStatus::Done, cx)
3480            })
3481            .unwrap();
3482        buffer.update(cx, |buffer, cx| buffer.edit([(4..4, "bbb")], None, cx));
3483
3484        let message_3 = conversation
3485            .update(cx, |conversation, cx| {
3486                conversation.insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3487            })
3488            .unwrap();
3489        buffer.update(cx, |buffer, cx| buffer.edit([(8..8, "ccc")], None, cx));
3490
3491        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc");
3492        assert_eq!(
3493            messages(&conversation, cx),
3494            vec![
3495                (message_1.id, Role::User, 0..4),
3496                (message_2.id, Role::User, 4..8),
3497                (message_3.id, Role::User, 8..11)
3498            ]
3499        );
3500
3501        assert_eq!(
3502            message_ids_for_offsets(&conversation, &[0, 4, 9], cx),
3503            [message_1.id, message_2.id, message_3.id]
3504        );
3505        assert_eq!(
3506            message_ids_for_offsets(&conversation, &[0, 1, 11], cx),
3507            [message_1.id, message_3.id]
3508        );
3509
3510        let message_4 = conversation
3511            .update(cx, |conversation, cx| {
3512                conversation.insert_message_after(message_3.id, Role::User, MessageStatus::Done, cx)
3513            })
3514            .unwrap();
3515        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\n");
3516        assert_eq!(
3517            messages(&conversation, cx),
3518            vec![
3519                (message_1.id, Role::User, 0..4),
3520                (message_2.id, Role::User, 4..8),
3521                (message_3.id, Role::User, 8..12),
3522                (message_4.id, Role::User, 12..12)
3523            ]
3524        );
3525        assert_eq!(
3526            message_ids_for_offsets(&conversation, &[0, 4, 8, 12], cx),
3527            [message_1.id, message_2.id, message_3.id, message_4.id]
3528        );
3529
3530        fn message_ids_for_offsets(
3531            conversation: &Model<Conversation>,
3532            offsets: &[usize],
3533            cx: &AppContext,
3534        ) -> Vec<MessageId> {
3535            conversation
3536                .read(cx)
3537                .messages_for_offsets(offsets.iter().copied(), cx)
3538                .into_iter()
3539                .map(|message| message.id)
3540                .collect()
3541        }
3542    }
3543
3544    #[gpui::test]
3545    async fn test_serialization(cx: &mut TestAppContext) {
3546        let settings_store = cx.update(SettingsStore::test);
3547        cx.set_global(settings_store);
3548        cx.update(init);
3549        let registry = Arc::new(LanguageRegistry::test());
3550        let completion_provider = Arc::new(FakeCompletionProvider::new());
3551        let conversation =
3552            cx.new_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
3553        let buffer = conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3554        let message_0 =
3555            conversation.read_with(cx, |conversation, _| conversation.message_anchors[0].id);
3556        let message_1 = conversation.update(cx, |conversation, cx| {
3557            conversation
3558                .insert_message_after(message_0, Role::Assistant, MessageStatus::Done, cx)
3559                .unwrap()
3560        });
3561        let message_2 = conversation.update(cx, |conversation, cx| {
3562            conversation
3563                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3564                .unwrap()
3565        });
3566        buffer.update(cx, |buffer, cx| {
3567            buffer.edit([(0..0, "a"), (1..1, "b\nc")], None, cx);
3568            buffer.finalize_last_transaction();
3569        });
3570        let _message_3 = conversation.update(cx, |conversation, cx| {
3571            conversation
3572                .insert_message_after(message_2.id, Role::System, MessageStatus::Done, cx)
3573                .unwrap()
3574        });
3575        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3576        assert_eq!(buffer.read_with(cx, |buffer, _| buffer.text()), "a\nb\nc\n");
3577        assert_eq!(
3578            cx.read(|cx| messages(&conversation, cx)),
3579            [
3580                (message_0, Role::User, 0..2),
3581                (message_1.id, Role::Assistant, 2..6),
3582                (message_2.id, Role::System, 6..6),
3583            ]
3584        );
3585
3586        let deserialized_conversation = Conversation::deserialize(
3587            conversation.read_with(cx, |conversation, cx| conversation.serialize(cx)),
3588            Default::default(),
3589            registry.clone(),
3590            &mut cx.to_async(),
3591        )
3592        .await
3593        .unwrap();
3594        let deserialized_buffer =
3595            deserialized_conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3596        assert_eq!(
3597            deserialized_buffer.read_with(cx, |buffer, _| buffer.text()),
3598            "a\nb\nc\n"
3599        );
3600        assert_eq!(
3601            cx.read(|cx| messages(&deserialized_conversation, cx)),
3602            [
3603                (message_0, Role::User, 0..2),
3604                (message_1.id, Role::Assistant, 2..6),
3605                (message_2.id, Role::System, 6..6),
3606            ]
3607        );
3608    }
3609
3610    fn messages(
3611        conversation: &Model<Conversation>,
3612        cx: &AppContext,
3613    ) -> Vec<(MessageId, Role, Range<usize>)> {
3614        conversation
3615            .read(cx)
3616            .messages(cx)
3617            .map(|message| (message.id, message.role, message.offset_range))
3618            .collect()
3619    }
3620}
3621
3622fn report_assistant_event(
3623    workspace: WeakView<Workspace>,
3624    conversation_id: Option<String>,
3625    assistant_kind: AssistantKind,
3626    cx: &AppContext,
3627) {
3628    let Some(workspace) = workspace.upgrade() else {
3629        return;
3630    };
3631
3632    let client = workspace.read(cx).project().read(cx).client();
3633    let telemetry = client.telemetry();
3634
3635    let model = AssistantSettings::get_global(cx)
3636        .default_open_ai_model
3637        .clone();
3638
3639    telemetry.report_assistant_event(conversation_id, assistant_kind, model.full_name())
3640}