assistant_panel.rs

   1use crate::{
   2    assistant_settings::{AssistantDockPosition, AssistantSettings, OpenAIModel},
   3    codegen::{self, Codegen, CodegenKind},
   4    prompts::generate_content_prompt,
   5    Assist, CycleMessageRole, InlineAssist, MessageId, MessageMetadata, MessageStatus,
   6    NewConversation, QuoteSelection, ResetKey, Role, SavedConversation, SavedConversationMetadata,
   7    SavedMessage, Split, ToggleFocus, ToggleIncludeConversation, ToggleRetrieveContext,
   8};
   9use ai::prompts::repository_context::PromptCodeSnippet;
  10use ai::{
  11    auth::ProviderCredential,
  12    completion::{CompletionProvider, CompletionRequest},
  13    providers::open_ai::{OpenAICompletionProvider, OpenAIRequest, RequestMessage},
  14};
  15use anyhow::{anyhow, Result};
  16use chrono::{DateTime, Local};
  17use client::telemetry::AssistantKind;
  18use collections::{hash_map, HashMap, HashSet, VecDeque};
  19use editor::{
  20    actions::{MoveDown, MoveUp},
  21    display_map::{
  22        BlockContext, BlockDisposition, BlockId, BlockProperties, BlockStyle, ToDisplayPoint,
  23    },
  24    scroll::{Autoscroll, AutoscrollStrategy},
  25    Anchor, Editor, EditorElement, EditorEvent, EditorStyle, MultiBufferSnapshot, ToOffset,
  26    ToPoint,
  27};
  28use fs::Fs;
  29use futures::StreamExt;
  30use gpui::{
  31    canvas, div, point, relative, rems, uniform_list, Action, AnyElement, AppContext,
  32    AsyncAppContext, AsyncWindowContext, AvailableSpace, ClipboardItem, Context, EventEmitter,
  33    FocusHandle, FocusableView, FontStyle, FontWeight, HighlightStyle, InteractiveElement,
  34    IntoElement, Model, ModelContext, ParentElement, Pixels, PromptLevel, Render, SharedString,
  35    StatefulInteractiveElement, Styled, Subscription, Task, TextStyle, UniformListScrollHandle,
  36    View, ViewContext, VisualContext, WeakModel, WeakView, WhiteSpace, WindowContext,
  37};
  38use language::{language_settings::SoftWrap, Buffer, LanguageRegistry, ToOffset as _};
  39use project::Project;
  40use search::{buffer_search::DivRegistrar, BufferSearchBar};
  41use semantic_index::{SemanticIndex, SemanticIndexStatus};
  42use settings::Settings;
  43use std::{
  44    cell::Cell,
  45    cmp,
  46    fmt::Write,
  47    iter,
  48    ops::Range,
  49    path::{Path, PathBuf},
  50    rc::Rc,
  51    sync::Arc,
  52    time::{Duration, Instant},
  53};
  54use theme::ThemeSettings;
  55use ui::{
  56    prelude::*,
  57    utils::{DateTimeType, FormatDistance},
  58    ButtonLike, Tab, TabBar, Tooltip,
  59};
  60use util::{paths::CONVERSATIONS_DIR, post_inc, ResultExt, TryFutureExt};
  61use uuid::Uuid;
  62use workspace::{
  63    dock::{DockPosition, Panel, PanelEvent},
  64    searchable::Direction,
  65    Save, Toast, ToggleZoom, Toolbar, Workspace,
  66};
  67
  68pub fn init(cx: &mut AppContext) {
  69    AssistantSettings::register(cx);
  70    cx.observe_new_views(
  71        |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
  72            workspace
  73                .register_action(|workspace, _: &ToggleFocus, cx| {
  74                    workspace.toggle_panel_focus::<AssistantPanel>(cx);
  75                })
  76                .register_action(AssistantPanel::inline_assist)
  77                .register_action(AssistantPanel::cancel_last_inline_assist)
  78                .register_action(ConversationEditor::quote_selection);
  79        },
  80    )
  81    .detach();
  82}
  83
  84pub struct AssistantPanel {
  85    workspace: WeakView<Workspace>,
  86    width: Option<Pixels>,
  87    height: Option<Pixels>,
  88    active_editor_index: Option<usize>,
  89    prev_active_editor_index: Option<usize>,
  90    editors: Vec<View<ConversationEditor>>,
  91    saved_conversations: Vec<SavedConversationMetadata>,
  92    saved_conversations_scroll_handle: UniformListScrollHandle,
  93    zoomed: bool,
  94    focus_handle: FocusHandle,
  95    toolbar: View<Toolbar>,
  96    completion_provider: Arc<dyn CompletionProvider>,
  97    api_key_editor: Option<View<Editor>>,
  98    languages: Arc<LanguageRegistry>,
  99    fs: Arc<dyn Fs>,
 100    subscriptions: Vec<Subscription>,
 101    next_inline_assist_id: usize,
 102    pending_inline_assists: HashMap<usize, PendingInlineAssist>,
 103    pending_inline_assist_ids_by_editor: HashMap<WeakView<Editor>, Vec<usize>>,
 104    include_conversation_in_next_inline_assist: bool,
 105    inline_prompt_history: VecDeque<String>,
 106    _watch_saved_conversations: Task<Result<()>>,
 107    semantic_index: Option<Model<SemanticIndex>>,
 108    retrieve_context_in_next_inline_assist: bool,
 109}
 110
 111impl AssistantPanel {
 112    const INLINE_PROMPT_HISTORY_MAX_LEN: usize = 20;
 113
 114    pub fn load(
 115        workspace: WeakView<Workspace>,
 116        cx: AsyncWindowContext,
 117    ) -> Task<Result<View<Self>>> {
 118        cx.spawn(|mut cx| async move {
 119            let fs = workspace.update(&mut cx, |workspace, _| workspace.app_state().fs.clone())?;
 120            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 121                .await
 122                .log_err()
 123                .unwrap_or_default();
 124            // Defaulting currently to GPT4, allow for this to be set via config.
 125            let completion_provider =
 126                OpenAICompletionProvider::new("gpt-4".into(), cx.background_executor().clone())
 127                    .await;
 128
 129            // TODO: deserialize state.
 130            let workspace_handle = workspace.clone();
 131            workspace.update(&mut cx, |workspace, cx| {
 132                cx.new_view::<Self>(|cx| {
 133                    const CONVERSATION_WATCH_DURATION: Duration = Duration::from_millis(100);
 134                    let _watch_saved_conversations = cx.spawn(move |this, mut cx| async move {
 135                        let mut events = fs
 136                            .watch(&CONVERSATIONS_DIR, CONVERSATION_WATCH_DURATION)
 137                            .await;
 138                        while events.next().await.is_some() {
 139                            let saved_conversations = SavedConversationMetadata::list(fs.clone())
 140                                .await
 141                                .log_err()
 142                                .unwrap_or_default();
 143                            this.update(&mut cx, |this, cx| {
 144                                this.saved_conversations = saved_conversations;
 145                                cx.notify();
 146                            })
 147                            .ok();
 148                        }
 149
 150                        anyhow::Ok(())
 151                    });
 152
 153                    let toolbar = cx.new_view(|cx| {
 154                        let mut toolbar = Toolbar::new();
 155                        toolbar.set_can_navigate(false, cx);
 156                        toolbar.add_item(cx.new_view(|cx| BufferSearchBar::new(cx)), cx);
 157                        toolbar
 158                    });
 159
 160                    let semantic_index = SemanticIndex::global(cx);
 161
 162                    let focus_handle = cx.focus_handle();
 163                    cx.on_focus_in(&focus_handle, Self::focus_in).detach();
 164                    cx.on_focus_out(&focus_handle, Self::focus_out).detach();
 165
 166                    Self {
 167                        workspace: workspace_handle,
 168                        active_editor_index: Default::default(),
 169                        prev_active_editor_index: Default::default(),
 170                        editors: Default::default(),
 171                        saved_conversations,
 172                        saved_conversations_scroll_handle: Default::default(),
 173                        zoomed: false,
 174                        focus_handle,
 175                        toolbar,
 176                        completion_provider: Arc::new(completion_provider),
 177                        api_key_editor: None,
 178                        languages: workspace.app_state().languages.clone(),
 179                        fs: workspace.app_state().fs.clone(),
 180                        width: None,
 181                        height: None,
 182                        subscriptions: Default::default(),
 183                        next_inline_assist_id: 0,
 184                        pending_inline_assists: Default::default(),
 185                        pending_inline_assist_ids_by_editor: Default::default(),
 186                        include_conversation_in_next_inline_assist: false,
 187                        inline_prompt_history: Default::default(),
 188                        _watch_saved_conversations,
 189                        semantic_index,
 190                        retrieve_context_in_next_inline_assist: false,
 191                    }
 192                })
 193            })
 194        })
 195    }
 196
 197    fn focus_in(&mut self, cx: &mut ViewContext<Self>) {
 198        self.toolbar
 199            .update(cx, |toolbar, cx| toolbar.focus_changed(true, cx));
 200        cx.notify();
 201        if self.focus_handle.is_focused(cx) {
 202            if 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            white_space: WhiteSpace::Normal,
 966        };
 967        EditorElement::new(
 968            &editor,
 969            EditorStyle {
 970                background: cx.theme().colors().editor_background,
 971                local_player: cx.theme().players().local(),
 972                text: text_style,
 973                ..Default::default()
 974            },
 975        )
 976    }
 977
 978    fn render_hamburger_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
 979        IconButton::new("hamburger_button", IconName::Menu)
 980            .on_click(cx.listener(|this, _event, cx| {
 981                if this.active_editor().is_some() {
 982                    this.set_active_editor_index(None, cx);
 983                } else {
 984                    this.set_active_editor_index(this.prev_active_editor_index, cx);
 985                }
 986            }))
 987            .tooltip(|cx| Tooltip::text("Conversation History", cx))
 988    }
 989
 990    fn render_editor_tools(&self, cx: &mut ViewContext<Self>) -> Vec<AnyElement> {
 991        if self.active_editor().is_some() {
 992            vec![
 993                Self::render_split_button(cx).into_any_element(),
 994                Self::render_quote_button(cx).into_any_element(),
 995                Self::render_assist_button(cx).into_any_element(),
 996            ]
 997        } else {
 998            Default::default()
 999        }
1000    }
1001
1002    fn render_split_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1003        IconButton::new("split_button", IconName::Snip)
1004            .on_click(cx.listener(|this, _event, cx| {
1005                if let Some(active_editor) = this.active_editor() {
1006                    active_editor.update(cx, |editor, cx| editor.split(&Default::default(), cx));
1007                }
1008            }))
1009            .icon_size(IconSize::Small)
1010            .tooltip(|cx| Tooltip::for_action("Split Message", &Split, cx))
1011    }
1012
1013    fn render_assist_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1014        IconButton::new("assist_button", IconName::MagicWand)
1015            .on_click(cx.listener(|this, _event, cx| {
1016                if let Some(active_editor) = this.active_editor() {
1017                    active_editor.update(cx, |editor, cx| editor.assist(&Default::default(), cx));
1018                }
1019            }))
1020            .icon_size(IconSize::Small)
1021            .tooltip(|cx| Tooltip::for_action("Assist", &Assist, cx))
1022    }
1023
1024    fn render_quote_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1025        IconButton::new("quote_button", IconName::Quote)
1026            .on_click(cx.listener(|this, _event, cx| {
1027                if let Some(workspace) = this.workspace.upgrade() {
1028                    cx.window_context().defer(move |cx| {
1029                        workspace.update(cx, |workspace, cx| {
1030                            ConversationEditor::quote_selection(workspace, &Default::default(), cx)
1031                        });
1032                    });
1033                }
1034            }))
1035            .icon_size(IconSize::Small)
1036            .tooltip(|cx| Tooltip::for_action("Quote Selection", &QuoteSelection, cx))
1037    }
1038
1039    fn render_plus_button(cx: &mut ViewContext<Self>) -> impl IntoElement {
1040        IconButton::new("plus_button", IconName::Plus)
1041            .on_click(cx.listener(|this, _event, cx| {
1042                this.new_conversation(cx);
1043            }))
1044            .icon_size(IconSize::Small)
1045            .tooltip(|cx| Tooltip::for_action("New Conversation", &NewConversation, cx))
1046    }
1047
1048    fn render_zoom_button(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1049        let zoomed = self.zoomed;
1050        IconButton::new("zoom_button", IconName::Maximize)
1051            .on_click(cx.listener(|this, _event, cx| {
1052                this.toggle_zoom(&ToggleZoom, cx);
1053            }))
1054            .selected(zoomed)
1055            .selected_icon(IconName::Minimize)
1056            .icon_size(IconSize::Small)
1057            .tooltip(move |cx| {
1058                Tooltip::for_action(if zoomed { "Zoom Out" } else { "Zoom In" }, &ToggleZoom, cx)
1059            })
1060    }
1061
1062    fn render_saved_conversation(
1063        &mut self,
1064        index: usize,
1065        cx: &mut ViewContext<Self>,
1066    ) -> impl IntoElement {
1067        let conversation = &self.saved_conversations[index];
1068        let path = conversation.path.clone();
1069
1070        ButtonLike::new(index)
1071            .on_click(cx.listener(move |this, _, cx| {
1072                this.open_conversation(path.clone(), cx)
1073                    .detach_and_log_err(cx)
1074            }))
1075            .full_width()
1076            .child(
1077                div()
1078                    .flex()
1079                    .w_full()
1080                    .gap_2()
1081                    .child(
1082                        Label::new(conversation.mtime.format("%F %I:%M%p").to_string())
1083                            .color(Color::Muted)
1084                            .size(LabelSize::Small),
1085                    )
1086                    .child(Label::new(conversation.title.clone()).size(LabelSize::Small)),
1087            )
1088    }
1089
1090    fn open_conversation(&mut self, path: PathBuf, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
1091        cx.focus(&self.focus_handle);
1092
1093        if let Some(ix) = self.editor_index_for_path(&path, cx) {
1094            self.set_active_editor_index(Some(ix), cx);
1095            return Task::ready(Ok(()));
1096        }
1097
1098        let fs = self.fs.clone();
1099        let workspace = self.workspace.clone();
1100        let languages = self.languages.clone();
1101        cx.spawn(|this, mut cx| async move {
1102            let saved_conversation = fs.load(&path).await?;
1103            let saved_conversation = serde_json::from_str(&saved_conversation)?;
1104            let conversation =
1105                Conversation::deserialize(saved_conversation, path.clone(), languages, &mut cx)
1106                    .await?;
1107            this.update(&mut cx, |this, cx| {
1108                // If, by the time we've loaded the conversation, the user has already opened
1109                // the same conversation, we don't want to open it again.
1110                if let Some(ix) = this.editor_index_for_path(&path, cx) {
1111                    this.set_active_editor_index(Some(ix), cx);
1112                } else {
1113                    let editor = cx.new_view(|cx| {
1114                        ConversationEditor::for_conversation(conversation, fs, workspace, cx)
1115                    });
1116                    this.add_conversation(editor, cx);
1117                }
1118            })?;
1119            Ok(())
1120        })
1121    }
1122
1123    fn editor_index_for_path(&self, path: &Path, cx: &AppContext) -> Option<usize> {
1124        self.editors
1125            .iter()
1126            .position(|editor| editor.read(cx).conversation.read(cx).path.as_deref() == Some(path))
1127    }
1128
1129    fn has_credentials(&mut self) -> bool {
1130        self.completion_provider.has_credentials()
1131    }
1132
1133    fn load_credentials(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
1134        let completion_provider = self.completion_provider.clone();
1135        cx.spawn(|_, mut cx| async move {
1136            if let Some(retrieve_credentials) = cx
1137                .update(|cx| completion_provider.retrieve_credentials(cx))
1138                .log_err()
1139            {
1140                retrieve_credentials.await;
1141            }
1142        })
1143    }
1144}
1145
1146fn build_api_key_editor(cx: &mut WindowContext) -> View<Editor> {
1147    cx.new_view(|cx| {
1148        let mut editor = Editor::single_line(cx);
1149        editor.set_placeholder_text("sk-000000000000000000000000000000000000000000000000", cx);
1150        editor
1151    })
1152}
1153
1154impl Render for AssistantPanel {
1155    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1156        if let Some(api_key_editor) = self.api_key_editor.clone() {
1157            const INSTRUCTIONS: [&'static str; 6] = [
1158                "To use the assistant panel or inline assistant, you need to add your OpenAI API key.",
1159                " - You can create an API key at: platform.openai.com/api-keys",
1160                " - Make sure your OpenAI account has credits",
1161                " - Having a subscription for another service like GitHub Copilot won't work.",
1162                " ",
1163                "Paste your OpenAI API key and press Enter to use the assistant:"
1164            ];
1165
1166            v_flex()
1167                .p_4()
1168                .size_full()
1169                .on_action(cx.listener(AssistantPanel::save_credentials))
1170                .track_focus(&self.focus_handle)
1171                .children(
1172                    INSTRUCTIONS.map(|instruction| Label::new(instruction).size(LabelSize::Small)),
1173                )
1174                .child(
1175                    h_flex()
1176                        .w_full()
1177                        .my_2()
1178                        .px_2()
1179                        .py_1()
1180                        .bg(cx.theme().colors().editor_background)
1181                        .rounded_md()
1182                        .child(self.render_api_key_editor(&api_key_editor, cx)),
1183                )
1184                .child(
1185                    h_flex()
1186                        .gap_2()
1187                        .child(Label::new("Click on").size(LabelSize::Small))
1188                        .child(Icon::new(IconName::Ai).size(IconSize::XSmall))
1189                        .child(
1190                            Label::new("in the status bar to close this panel.")
1191                                .size(LabelSize::Small),
1192                        ),
1193                )
1194        } else {
1195            let header = TabBar::new("assistant_header")
1196                .start_child(
1197                    h_flex().gap_1().child(Self::render_hamburger_button(cx)), // .children(title),
1198                )
1199                .children(self.active_editor().map(|editor| {
1200                    h_flex()
1201                        .h(rems(Tab::CONTAINER_HEIGHT_IN_REMS))
1202                        .flex_1()
1203                        .px_2()
1204                        .child(Label::new(editor.read(cx).title(cx)).into_element())
1205                }))
1206                .when(self.focus_handle.contains_focused(cx), |this| {
1207                    this.end_child(
1208                        h_flex()
1209                            .gap_2()
1210                            .when(self.active_editor().is_some(), |this| {
1211                                this.child(h_flex().gap_1().children(self.render_editor_tools(cx)))
1212                                    .child(
1213                                        ui::Divider::vertical()
1214                                            .inset()
1215                                            .color(ui::DividerColor::Border),
1216                                    )
1217                            })
1218                            .child(
1219                                h_flex()
1220                                    .gap_1()
1221                                    .child(Self::render_plus_button(cx))
1222                                    .child(self.render_zoom_button(cx)),
1223                            ),
1224                    )
1225                });
1226
1227            let contents = if self.active_editor().is_some() {
1228                let mut registrar = DivRegistrar::new(
1229                    |panel, cx| panel.toolbar.read(cx).item_of_type::<BufferSearchBar>(),
1230                    cx,
1231                );
1232                BufferSearchBar::register(&mut registrar);
1233                registrar.into_div()
1234            } else {
1235                div()
1236            };
1237            v_flex()
1238                .key_context("AssistantPanel")
1239                .size_full()
1240                .on_action(cx.listener(|this, _: &workspace::NewFile, cx| {
1241                    this.new_conversation(cx);
1242                }))
1243                .on_action(cx.listener(AssistantPanel::reset_credentials))
1244                .on_action(cx.listener(AssistantPanel::toggle_zoom))
1245                .on_action(cx.listener(AssistantPanel::deploy))
1246                .on_action(cx.listener(AssistantPanel::select_next_match))
1247                .on_action(cx.listener(AssistantPanel::select_prev_match))
1248                .on_action(cx.listener(AssistantPanel::handle_editor_cancel))
1249                .track_focus(&self.focus_handle)
1250                .child(header)
1251                .children(if self.toolbar.read(cx).hidden() {
1252                    None
1253                } else {
1254                    Some(self.toolbar.clone())
1255                })
1256                .child(
1257                    contents
1258                        .flex_1()
1259                        .child(if let Some(editor) = self.active_editor() {
1260                            editor.clone().into_any_element()
1261                        } else {
1262                            let view = cx.view().clone();
1263                            let scroll_handle = self.saved_conversations_scroll_handle.clone();
1264                            let conversation_count = self.saved_conversations.len();
1265                            canvas(move |bounds, cx| {
1266                                uniform_list(
1267                                    view,
1268                                    "saved_conversations",
1269                                    conversation_count,
1270                                    |this, range, cx| {
1271                                        range
1272                                            .map(|ix| this.render_saved_conversation(ix, cx))
1273                                            .collect()
1274                                    },
1275                                )
1276                                .track_scroll(scroll_handle)
1277                                .into_any_element()
1278                                .draw(
1279                                    bounds.origin,
1280                                    bounds.size.map(AvailableSpace::Definite),
1281                                    cx,
1282                                );
1283                            })
1284                            .size_full()
1285                            .into_any_element()
1286                        }),
1287                )
1288        }
1289    }
1290}
1291
1292impl Panel for AssistantPanel {
1293    fn persistent_name() -> &'static str {
1294        "AssistantPanel"
1295    }
1296
1297    fn position(&self, cx: &WindowContext) -> DockPosition {
1298        match AssistantSettings::get_global(cx).dock {
1299            AssistantDockPosition::Left => DockPosition::Left,
1300            AssistantDockPosition::Bottom => DockPosition::Bottom,
1301            AssistantDockPosition::Right => DockPosition::Right,
1302        }
1303    }
1304
1305    fn position_is_valid(&self, _: DockPosition) -> bool {
1306        true
1307    }
1308
1309    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1310        settings::update_settings_file::<AssistantSettings>(self.fs.clone(), cx, move |settings| {
1311            let dock = match position {
1312                DockPosition::Left => AssistantDockPosition::Left,
1313                DockPosition::Bottom => AssistantDockPosition::Bottom,
1314                DockPosition::Right => AssistantDockPosition::Right,
1315            };
1316            settings.dock = Some(dock);
1317        });
1318    }
1319
1320    fn size(&self, cx: &WindowContext) -> Pixels {
1321        let settings = AssistantSettings::get_global(cx);
1322        match self.position(cx) {
1323            DockPosition::Left | DockPosition::Right => {
1324                self.width.unwrap_or_else(|| settings.default_width)
1325            }
1326            DockPosition::Bottom => self.height.unwrap_or_else(|| settings.default_height),
1327        }
1328    }
1329
1330    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
1331        match self.position(cx) {
1332            DockPosition::Left | DockPosition::Right => self.width = size,
1333            DockPosition::Bottom => self.height = size,
1334        }
1335        cx.notify();
1336    }
1337
1338    fn is_zoomed(&self, _: &WindowContext) -> bool {
1339        self.zoomed
1340    }
1341
1342    fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1343        self.zoomed = zoomed;
1344        cx.notify();
1345    }
1346
1347    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
1348        if active {
1349            let load_credentials = self.load_credentials(cx);
1350            cx.spawn(|this, mut cx| async move {
1351                load_credentials.await;
1352                this.update(&mut cx, |this, cx| {
1353                    if !this.has_credentials() {
1354                        this.build_api_key_editor(cx);
1355                    } else if this.editors.is_empty() {
1356                        this.new_conversation(cx);
1357                    }
1358                })
1359            })
1360            .detach_and_log_err(cx);
1361        }
1362    }
1363
1364    fn icon(&self, cx: &WindowContext) -> Option<IconName> {
1365        Some(IconName::Ai).filter(|_| AssistantSettings::get_global(cx).button)
1366    }
1367
1368    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
1369        Some("Assistant Panel")
1370    }
1371
1372    fn toggle_action(&self) -> Box<dyn Action> {
1373        Box::new(ToggleFocus)
1374    }
1375}
1376
1377impl EventEmitter<PanelEvent> for AssistantPanel {}
1378
1379impl FocusableView for AssistantPanel {
1380    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
1381        self.focus_handle.clone()
1382    }
1383}
1384
1385enum ConversationEvent {
1386    MessagesEdited,
1387    SummaryChanged,
1388    StreamedCompletion,
1389}
1390
1391#[derive(Default)]
1392struct Summary {
1393    text: String,
1394    done: bool,
1395}
1396
1397struct Conversation {
1398    id: Option<String>,
1399    buffer: Model<Buffer>,
1400    message_anchors: Vec<MessageAnchor>,
1401    messages_metadata: HashMap<MessageId, MessageMetadata>,
1402    next_message_id: MessageId,
1403    summary: Option<Summary>,
1404    pending_summary: Task<Option<()>>,
1405    completion_count: usize,
1406    pending_completions: Vec<PendingCompletion>,
1407    model: OpenAIModel,
1408    token_count: Option<usize>,
1409    max_token_count: usize,
1410    pending_token_count: Task<Option<()>>,
1411    pending_save: Task<Result<()>>,
1412    path: Option<PathBuf>,
1413    _subscriptions: Vec<Subscription>,
1414    completion_provider: Arc<dyn CompletionProvider>,
1415}
1416
1417impl EventEmitter<ConversationEvent> for Conversation {}
1418
1419impl Conversation {
1420    fn new(
1421        language_registry: Arc<LanguageRegistry>,
1422        cx: &mut ModelContext<Self>,
1423        completion_provider: Arc<dyn CompletionProvider>,
1424    ) -> Self {
1425        let markdown = language_registry.language_for_name("Markdown");
1426        let buffer = cx.new_model(|cx| {
1427            let mut buffer = Buffer::new(0, cx.entity_id().as_u64(), "");
1428            buffer.set_language_registry(language_registry);
1429            cx.spawn(|buffer, mut cx| async move {
1430                let markdown = markdown.await?;
1431                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1432                    buffer.set_language(Some(markdown), cx)
1433                })?;
1434                anyhow::Ok(())
1435            })
1436            .detach_and_log_err(cx);
1437            buffer
1438        });
1439
1440        let settings = AssistantSettings::get_global(cx);
1441        let model = settings.default_open_ai_model.clone();
1442
1443        let mut this = Self {
1444            id: Some(Uuid::new_v4().to_string()),
1445            message_anchors: Default::default(),
1446            messages_metadata: Default::default(),
1447            next_message_id: Default::default(),
1448            summary: None,
1449            pending_summary: Task::ready(None),
1450            completion_count: Default::default(),
1451            pending_completions: Default::default(),
1452            token_count: None,
1453            max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1454            pending_token_count: Task::ready(None),
1455            model: model.clone(),
1456            _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1457            pending_save: Task::ready(Ok(())),
1458            path: None,
1459            buffer,
1460            completion_provider,
1461        };
1462        let message = MessageAnchor {
1463            id: MessageId(post_inc(&mut this.next_message_id.0)),
1464            start: language::Anchor::MIN,
1465        };
1466        this.message_anchors.push(message.clone());
1467        this.messages_metadata.insert(
1468            message.id,
1469            MessageMetadata {
1470                role: Role::User,
1471                sent_at: Local::now(),
1472                status: MessageStatus::Done,
1473            },
1474        );
1475
1476        this.count_remaining_tokens(cx);
1477        this
1478    }
1479
1480    fn serialize(&self, cx: &AppContext) -> SavedConversation {
1481        SavedConversation {
1482            id: self.id.clone(),
1483            zed: "conversation".into(),
1484            version: SavedConversation::VERSION.into(),
1485            text: self.buffer.read(cx).text(),
1486            message_metadata: self.messages_metadata.clone(),
1487            messages: self
1488                .messages(cx)
1489                .map(|message| SavedMessage {
1490                    id: message.id,
1491                    start: message.offset_range.start,
1492                })
1493                .collect(),
1494            summary: self
1495                .summary
1496                .as_ref()
1497                .map(|summary| summary.text.clone())
1498                .unwrap_or_default(),
1499            model: self.model.clone(),
1500        }
1501    }
1502
1503    async fn deserialize(
1504        saved_conversation: SavedConversation,
1505        path: PathBuf,
1506        language_registry: Arc<LanguageRegistry>,
1507        cx: &mut AsyncAppContext,
1508    ) -> Result<Model<Self>> {
1509        let id = match saved_conversation.id {
1510            Some(id) => Some(id),
1511            None => Some(Uuid::new_v4().to_string()),
1512        };
1513        let model = saved_conversation.model;
1514        let completion_provider: Arc<dyn CompletionProvider> = Arc::new(
1515            OpenAICompletionProvider::new(
1516                model.full_name().into(),
1517                cx.background_executor().clone(),
1518            )
1519            .await,
1520        );
1521        cx.update(|cx| completion_provider.retrieve_credentials(cx))?;
1522        let markdown = language_registry.language_for_name("Markdown");
1523        let mut message_anchors = Vec::new();
1524        let mut next_message_id = MessageId(0);
1525        let buffer = cx.new_model(|cx| {
1526            let mut buffer = Buffer::new(0, cx.entity_id().as_u64(), saved_conversation.text);
1527            for message in saved_conversation.messages {
1528                message_anchors.push(MessageAnchor {
1529                    id: message.id,
1530                    start: buffer.anchor_before(message.start),
1531                });
1532                next_message_id = cmp::max(next_message_id, MessageId(message.id.0 + 1));
1533            }
1534            buffer.set_language_registry(language_registry);
1535            cx.spawn(|buffer, mut cx| async move {
1536                let markdown = markdown.await?;
1537                buffer.update(&mut cx, |buffer: &mut Buffer, cx| {
1538                    buffer.set_language(Some(markdown), cx)
1539                })?;
1540                anyhow::Ok(())
1541            })
1542            .detach_and_log_err(cx);
1543            buffer
1544        })?;
1545
1546        cx.new_model(|cx| {
1547            let mut this = Self {
1548                id,
1549                message_anchors,
1550                messages_metadata: saved_conversation.message_metadata,
1551                next_message_id,
1552                summary: Some(Summary {
1553                    text: saved_conversation.summary,
1554                    done: true,
1555                }),
1556                pending_summary: Task::ready(None),
1557                completion_count: Default::default(),
1558                pending_completions: Default::default(),
1559                token_count: None,
1560                max_token_count: tiktoken_rs::model::get_context_size(&model.full_name()),
1561                pending_token_count: Task::ready(None),
1562                model,
1563                _subscriptions: vec![cx.subscribe(&buffer, Self::handle_buffer_event)],
1564                pending_save: Task::ready(Ok(())),
1565                path: Some(path),
1566                buffer,
1567                completion_provider,
1568            };
1569            this.count_remaining_tokens(cx);
1570            this
1571        })
1572    }
1573
1574    fn handle_buffer_event(
1575        &mut self,
1576        _: Model<Buffer>,
1577        event: &language::Event,
1578        cx: &mut ModelContext<Self>,
1579    ) {
1580        match event {
1581            language::Event::Edited => {
1582                self.count_remaining_tokens(cx);
1583                cx.emit(ConversationEvent::MessagesEdited);
1584            }
1585            _ => {}
1586        }
1587    }
1588
1589    fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
1590        let messages = self
1591            .messages(cx)
1592            .into_iter()
1593            .filter_map(|message| {
1594                Some(tiktoken_rs::ChatCompletionRequestMessage {
1595                    role: match message.role {
1596                        Role::User => "user".into(),
1597                        Role::Assistant => "assistant".into(),
1598                        Role::System => "system".into(),
1599                    },
1600                    content: Some(
1601                        self.buffer
1602                            .read(cx)
1603                            .text_for_range(message.offset_range)
1604                            .collect(),
1605                    ),
1606                    name: None,
1607                    function_call: None,
1608                })
1609            })
1610            .collect::<Vec<_>>();
1611        let model = self.model.clone();
1612        self.pending_token_count = cx.spawn(|this, mut cx| {
1613            async move {
1614                cx.background_executor()
1615                    .timer(Duration::from_millis(200))
1616                    .await;
1617                let token_count = cx
1618                    .background_executor()
1619                    .spawn(async move {
1620                        tiktoken_rs::num_tokens_from_messages(&model.full_name(), &messages)
1621                    })
1622                    .await?;
1623
1624                this.update(&mut cx, |this, cx| {
1625                    this.max_token_count =
1626                        tiktoken_rs::model::get_context_size(&this.model.full_name());
1627                    this.token_count = Some(token_count);
1628                    cx.notify()
1629                })?;
1630                anyhow::Ok(())
1631            }
1632            .log_err()
1633        });
1634    }
1635
1636    fn remaining_tokens(&self) -> Option<isize> {
1637        Some(self.max_token_count as isize - self.token_count? as isize)
1638    }
1639
1640    fn set_model(&mut self, model: OpenAIModel, cx: &mut ModelContext<Self>) {
1641        self.model = model;
1642        self.count_remaining_tokens(cx);
1643        cx.notify();
1644    }
1645
1646    fn assist(
1647        &mut self,
1648        selected_messages: HashSet<MessageId>,
1649        cx: &mut ModelContext<Self>,
1650    ) -> Vec<MessageAnchor> {
1651        let mut user_messages = Vec::new();
1652
1653        let last_message_id = if let Some(last_message_id) =
1654            self.message_anchors.iter().rev().find_map(|message| {
1655                message
1656                    .start
1657                    .is_valid(self.buffer.read(cx))
1658                    .then_some(message.id)
1659            }) {
1660            last_message_id
1661        } else {
1662            return Default::default();
1663        };
1664
1665        let mut should_assist = false;
1666        for selected_message_id in selected_messages {
1667            let selected_message_role =
1668                if let Some(metadata) = self.messages_metadata.get(&selected_message_id) {
1669                    metadata.role
1670                } else {
1671                    continue;
1672                };
1673
1674            if selected_message_role == Role::Assistant {
1675                if let Some(user_message) = self.insert_message_after(
1676                    selected_message_id,
1677                    Role::User,
1678                    MessageStatus::Done,
1679                    cx,
1680                ) {
1681                    user_messages.push(user_message);
1682                }
1683            } else {
1684                should_assist = true;
1685            }
1686        }
1687
1688        if should_assist {
1689            if !self.completion_provider.has_credentials() {
1690                return Default::default();
1691            }
1692
1693            let request: Box<dyn CompletionRequest> = Box::new(OpenAIRequest {
1694                model: self.model.full_name().to_string(),
1695                messages: self
1696                    .messages(cx)
1697                    .filter(|message| matches!(message.status, MessageStatus::Done))
1698                    .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1699                    .collect(),
1700                stream: true,
1701                stop: vec![],
1702                temperature: 1.0,
1703            });
1704
1705            let stream = self.completion_provider.complete(request);
1706            let assistant_message = self
1707                .insert_message_after(last_message_id, Role::Assistant, MessageStatus::Pending, cx)
1708                .unwrap();
1709
1710            // Queue up the user's next reply.
1711            let user_message = self
1712                .insert_message_after(assistant_message.id, Role::User, MessageStatus::Done, cx)
1713                .unwrap();
1714            user_messages.push(user_message);
1715
1716            let task = cx.spawn({
1717                |this, mut cx| async move {
1718                    let assistant_message_id = assistant_message.id;
1719                    let stream_completion = async {
1720                        let mut messages = stream.await?;
1721
1722                        while let Some(message) = messages.next().await {
1723                            let text = message?;
1724
1725                            this.update(&mut cx, |this, cx| {
1726                                let message_ix = this
1727                                    .message_anchors
1728                                    .iter()
1729                                    .position(|message| message.id == assistant_message_id)?;
1730                                this.buffer.update(cx, |buffer, cx| {
1731                                    let offset = this.message_anchors[message_ix + 1..]
1732                                        .iter()
1733                                        .find(|message| message.start.is_valid(buffer))
1734                                        .map_or(buffer.len(), |message| {
1735                                            message.start.to_offset(buffer).saturating_sub(1)
1736                                        });
1737                                    buffer.edit([(offset..offset, text)], None, cx);
1738                                });
1739                                cx.emit(ConversationEvent::StreamedCompletion);
1740
1741                                Some(())
1742                            })?;
1743                            smol::future::yield_now().await;
1744                        }
1745
1746                        this.update(&mut cx, |this, cx| {
1747                            this.pending_completions
1748                                .retain(|completion| completion.id != this.completion_count);
1749                            this.summarize(cx);
1750                        })?;
1751
1752                        anyhow::Ok(())
1753                    };
1754
1755                    let result = stream_completion.await;
1756
1757                    this.update(&mut cx, |this, cx| {
1758                        if let Some(metadata) =
1759                            this.messages_metadata.get_mut(&assistant_message.id)
1760                        {
1761                            match result {
1762                                Ok(_) => {
1763                                    metadata.status = MessageStatus::Done;
1764                                }
1765                                Err(error) => {
1766                                    metadata.status = MessageStatus::Error(SharedString::from(
1767                                        error.to_string().trim().to_string(),
1768                                    ));
1769                                }
1770                            }
1771                            cx.notify();
1772                        }
1773                    })
1774                    .ok();
1775                }
1776            });
1777
1778            self.pending_completions.push(PendingCompletion {
1779                id: post_inc(&mut self.completion_count),
1780                _task: task,
1781            });
1782        }
1783
1784        user_messages
1785    }
1786
1787    fn cancel_last_assist(&mut self) -> bool {
1788        self.pending_completions.pop().is_some()
1789    }
1790
1791    fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
1792        for id in ids {
1793            if let Some(metadata) = self.messages_metadata.get_mut(&id) {
1794                metadata.role.cycle();
1795                cx.emit(ConversationEvent::MessagesEdited);
1796                cx.notify();
1797            }
1798        }
1799    }
1800
1801    fn insert_message_after(
1802        &mut self,
1803        message_id: MessageId,
1804        role: Role,
1805        status: MessageStatus,
1806        cx: &mut ModelContext<Self>,
1807    ) -> Option<MessageAnchor> {
1808        if let Some(prev_message_ix) = self
1809            .message_anchors
1810            .iter()
1811            .position(|message| message.id == message_id)
1812        {
1813            // Find the next valid message after the one we were given.
1814            let mut next_message_ix = prev_message_ix + 1;
1815            while let Some(next_message) = self.message_anchors.get(next_message_ix) {
1816                if next_message.start.is_valid(self.buffer.read(cx)) {
1817                    break;
1818                }
1819                next_message_ix += 1;
1820            }
1821
1822            let start = self.buffer.update(cx, |buffer, cx| {
1823                let offset = self
1824                    .message_anchors
1825                    .get(next_message_ix)
1826                    .map_or(buffer.len(), |message| message.start.to_offset(buffer) - 1);
1827                buffer.edit([(offset..offset, "\n")], None, cx);
1828                buffer.anchor_before(offset + 1)
1829            });
1830            let message = MessageAnchor {
1831                id: MessageId(post_inc(&mut self.next_message_id.0)),
1832                start,
1833            };
1834            self.message_anchors
1835                .insert(next_message_ix, message.clone());
1836            self.messages_metadata.insert(
1837                message.id,
1838                MessageMetadata {
1839                    role,
1840                    sent_at: Local::now(),
1841                    status,
1842                },
1843            );
1844            cx.emit(ConversationEvent::MessagesEdited);
1845            Some(message)
1846        } else {
1847            None
1848        }
1849    }
1850
1851    fn split_message(
1852        &mut self,
1853        range: Range<usize>,
1854        cx: &mut ModelContext<Self>,
1855    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
1856        let start_message = self.message_for_offset(range.start, cx);
1857        let end_message = self.message_for_offset(range.end, cx);
1858        if let Some((start_message, end_message)) = start_message.zip(end_message) {
1859            // Prevent splitting when range spans multiple messages.
1860            if start_message.id != end_message.id {
1861                return (None, None);
1862            }
1863
1864            let message = start_message;
1865            let role = message.role;
1866            let mut edited_buffer = false;
1867
1868            let mut suffix_start = None;
1869            if range.start > message.offset_range.start && range.end < message.offset_range.end - 1
1870            {
1871                if self.buffer.read(cx).chars_at(range.end).next() == Some('\n') {
1872                    suffix_start = Some(range.end + 1);
1873                } else if self.buffer.read(cx).reversed_chars_at(range.end).next() == Some('\n') {
1874                    suffix_start = Some(range.end);
1875                }
1876            }
1877
1878            let suffix = if let Some(suffix_start) = suffix_start {
1879                MessageAnchor {
1880                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1881                    start: self.buffer.read(cx).anchor_before(suffix_start),
1882                }
1883            } else {
1884                self.buffer.update(cx, |buffer, cx| {
1885                    buffer.edit([(range.end..range.end, "\n")], None, cx);
1886                });
1887                edited_buffer = true;
1888                MessageAnchor {
1889                    id: MessageId(post_inc(&mut self.next_message_id.0)),
1890                    start: self.buffer.read(cx).anchor_before(range.end + 1),
1891                }
1892            };
1893
1894            self.message_anchors
1895                .insert(message.index_range.end + 1, suffix.clone());
1896            self.messages_metadata.insert(
1897                suffix.id,
1898                MessageMetadata {
1899                    role,
1900                    sent_at: Local::now(),
1901                    status: MessageStatus::Done,
1902                },
1903            );
1904
1905            let new_messages =
1906                if range.start == range.end || range.start == message.offset_range.start {
1907                    (None, Some(suffix))
1908                } else {
1909                    let mut prefix_end = None;
1910                    if range.start > message.offset_range.start
1911                        && range.end < message.offset_range.end - 1
1912                    {
1913                        if self.buffer.read(cx).chars_at(range.start).next() == Some('\n') {
1914                            prefix_end = Some(range.start + 1);
1915                        } else if self.buffer.read(cx).reversed_chars_at(range.start).next()
1916                            == Some('\n')
1917                        {
1918                            prefix_end = Some(range.start);
1919                        }
1920                    }
1921
1922                    let selection = if let Some(prefix_end) = prefix_end {
1923                        cx.emit(ConversationEvent::MessagesEdited);
1924                        MessageAnchor {
1925                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1926                            start: self.buffer.read(cx).anchor_before(prefix_end),
1927                        }
1928                    } else {
1929                        self.buffer.update(cx, |buffer, cx| {
1930                            buffer.edit([(range.start..range.start, "\n")], None, cx)
1931                        });
1932                        edited_buffer = true;
1933                        MessageAnchor {
1934                            id: MessageId(post_inc(&mut self.next_message_id.0)),
1935                            start: self.buffer.read(cx).anchor_before(range.end + 1),
1936                        }
1937                    };
1938
1939                    self.message_anchors
1940                        .insert(message.index_range.end + 1, selection.clone());
1941                    self.messages_metadata.insert(
1942                        selection.id,
1943                        MessageMetadata {
1944                            role,
1945                            sent_at: Local::now(),
1946                            status: MessageStatus::Done,
1947                        },
1948                    );
1949                    (Some(selection), Some(suffix))
1950                };
1951
1952            if !edited_buffer {
1953                cx.emit(ConversationEvent::MessagesEdited);
1954            }
1955            new_messages
1956        } else {
1957            (None, None)
1958        }
1959    }
1960
1961    fn summarize(&mut self, cx: &mut ModelContext<Self>) {
1962        if self.message_anchors.len() >= 2 && self.summary.is_none() {
1963            if !self.completion_provider.has_credentials() {
1964                return;
1965            }
1966
1967            let messages = self
1968                .messages(cx)
1969                .take(2)
1970                .map(|message| message.to_open_ai_message(self.buffer.read(cx)))
1971                .chain(Some(RequestMessage {
1972                    role: Role::User,
1973                    content: "Summarize the conversation into a short title without punctuation"
1974                        .into(),
1975                }));
1976            let request: Box<dyn CompletionRequest> = Box::new(OpenAIRequest {
1977                model: self.model.full_name().to_string(),
1978                messages: messages.collect(),
1979                stream: true,
1980                stop: vec![],
1981                temperature: 1.0,
1982            });
1983
1984            let stream = self.completion_provider.complete(request);
1985            self.pending_summary = cx.spawn(|this, mut cx| {
1986                async move {
1987                    let mut messages = stream.await?;
1988
1989                    while let Some(message) = messages.next().await {
1990                        let text = message?;
1991                        this.update(&mut cx, |this, cx| {
1992                            this.summary
1993                                .get_or_insert(Default::default())
1994                                .text
1995                                .push_str(&text);
1996                            cx.emit(ConversationEvent::SummaryChanged);
1997                        })?;
1998                    }
1999
2000                    this.update(&mut cx, |this, cx| {
2001                        if let Some(summary) = this.summary.as_mut() {
2002                            summary.done = true;
2003                            cx.emit(ConversationEvent::SummaryChanged);
2004                        }
2005                    })?;
2006
2007                    anyhow::Ok(())
2008                }
2009                .log_err()
2010            });
2011        }
2012    }
2013
2014    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
2015        self.messages_for_offsets([offset], cx).pop()
2016    }
2017
2018    fn messages_for_offsets(
2019        &self,
2020        offsets: impl IntoIterator<Item = usize>,
2021        cx: &AppContext,
2022    ) -> Vec<Message> {
2023        let mut result = Vec::new();
2024
2025        let mut messages = self.messages(cx).peekable();
2026        let mut offsets = offsets.into_iter().peekable();
2027        let mut current_message = messages.next();
2028        while let Some(offset) = offsets.next() {
2029            // Locate the message that contains the offset.
2030            while current_message.as_ref().map_or(false, |message| {
2031                !message.offset_range.contains(&offset) && messages.peek().is_some()
2032            }) {
2033                current_message = messages.next();
2034            }
2035            let Some(message) = current_message.as_ref() else {
2036                break;
2037            };
2038
2039            // Skip offsets that are in the same message.
2040            while offsets.peek().map_or(false, |offset| {
2041                message.offset_range.contains(offset) || messages.peek().is_none()
2042            }) {
2043                offsets.next();
2044            }
2045
2046            result.push(message.clone());
2047        }
2048        result
2049    }
2050
2051    fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
2052        let buffer = self.buffer.read(cx);
2053        let mut message_anchors = self.message_anchors.iter().enumerate().peekable();
2054        iter::from_fn(move || {
2055            while let Some((start_ix, message_anchor)) = message_anchors.next() {
2056                let metadata = self.messages_metadata.get(&message_anchor.id)?;
2057                let message_start = message_anchor.start.to_offset(buffer);
2058                let mut message_end = None;
2059                let mut end_ix = start_ix;
2060                while let Some((_, next_message)) = message_anchors.peek() {
2061                    if next_message.start.is_valid(buffer) {
2062                        message_end = Some(next_message.start);
2063                        break;
2064                    } else {
2065                        end_ix += 1;
2066                        message_anchors.next();
2067                    }
2068                }
2069                let message_end = message_end
2070                    .unwrap_or(language::Anchor::MAX)
2071                    .to_offset(buffer);
2072                return Some(Message {
2073                    index_range: start_ix..end_ix,
2074                    offset_range: message_start..message_end,
2075                    id: message_anchor.id,
2076                    anchor: message_anchor.start,
2077                    role: metadata.role,
2078                    sent_at: metadata.sent_at,
2079                    status: metadata.status.clone(),
2080                });
2081            }
2082            None
2083        })
2084    }
2085
2086    fn save(
2087        &mut self,
2088        debounce: Option<Duration>,
2089        fs: Arc<dyn Fs>,
2090        cx: &mut ModelContext<Conversation>,
2091    ) {
2092        self.pending_save = cx.spawn(|this, mut cx| async move {
2093            if let Some(debounce) = debounce {
2094                cx.background_executor().timer(debounce).await;
2095            }
2096
2097            let (old_path, summary) = this.read_with(&cx, |this, _| {
2098                let path = this.path.clone();
2099                let summary = if let Some(summary) = this.summary.as_ref() {
2100                    if summary.done {
2101                        Some(summary.text.clone())
2102                    } else {
2103                        None
2104                    }
2105                } else {
2106                    None
2107                };
2108                (path, summary)
2109            })?;
2110
2111            if let Some(summary) = summary {
2112                let conversation = this.read_with(&cx, |this, cx| this.serialize(cx))?;
2113                let path = if let Some(old_path) = old_path {
2114                    old_path
2115                } else {
2116                    let mut discriminant = 1;
2117                    let mut new_path;
2118                    loop {
2119                        new_path = CONVERSATIONS_DIR.join(&format!(
2120                            "{} - {}.zed.json",
2121                            summary.trim(),
2122                            discriminant
2123                        ));
2124                        if fs.is_file(&new_path).await {
2125                            discriminant += 1;
2126                        } else {
2127                            break;
2128                        }
2129                    }
2130                    new_path
2131                };
2132
2133                fs.create_dir(CONVERSATIONS_DIR.as_ref()).await?;
2134                fs.atomic_write(path.clone(), serde_json::to_string(&conversation).unwrap())
2135                    .await?;
2136                this.update(&mut cx, |this, _| this.path = Some(path))?;
2137            }
2138
2139            Ok(())
2140        });
2141    }
2142}
2143
2144struct PendingCompletion {
2145    id: usize,
2146    _task: Task<()>,
2147}
2148
2149enum ConversationEditorEvent {
2150    TabContentChanged,
2151}
2152
2153#[derive(Copy, Clone, Debug, PartialEq)]
2154struct ScrollPosition {
2155    offset_before_cursor: gpui::Point<f32>,
2156    cursor: Anchor,
2157}
2158
2159struct ConversationEditor {
2160    conversation: Model<Conversation>,
2161    fs: Arc<dyn Fs>,
2162    workspace: WeakView<Workspace>,
2163    editor: View<Editor>,
2164    blocks: HashSet<BlockId>,
2165    scroll_position: Option<ScrollPosition>,
2166    _subscriptions: Vec<Subscription>,
2167}
2168
2169impl ConversationEditor {
2170    fn new(
2171        completion_provider: Arc<dyn CompletionProvider>,
2172        language_registry: Arc<LanguageRegistry>,
2173        fs: Arc<dyn Fs>,
2174        workspace: WeakView<Workspace>,
2175        cx: &mut ViewContext<Self>,
2176    ) -> Self {
2177        let conversation =
2178            cx.new_model(|cx| Conversation::new(language_registry, cx, completion_provider));
2179        Self::for_conversation(conversation, fs, workspace, cx)
2180    }
2181
2182    fn for_conversation(
2183        conversation: Model<Conversation>,
2184        fs: Arc<dyn Fs>,
2185        workspace: WeakView<Workspace>,
2186        cx: &mut ViewContext<Self>,
2187    ) -> Self {
2188        let editor = cx.new_view(|cx| {
2189            let mut editor = Editor::for_buffer(conversation.read(cx).buffer.clone(), None, cx);
2190            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
2191            editor.set_show_gutter(false, cx);
2192            editor.set_show_wrap_guides(false, cx);
2193            editor
2194        });
2195
2196        let _subscriptions = vec![
2197            cx.observe(&conversation, |_, _, cx| cx.notify()),
2198            cx.subscribe(&conversation, Self::handle_conversation_event),
2199            cx.subscribe(&editor, Self::handle_editor_event),
2200        ];
2201
2202        let mut this = Self {
2203            conversation,
2204            editor,
2205            blocks: Default::default(),
2206            scroll_position: None,
2207            fs,
2208            workspace,
2209            _subscriptions,
2210        };
2211        this.update_message_headers(cx);
2212        this
2213    }
2214
2215    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
2216        report_assistant_event(
2217            self.workspace.clone(),
2218            self.conversation.read(cx).id.clone(),
2219            AssistantKind::Panel,
2220            cx,
2221        );
2222
2223        let cursors = self.cursors(cx);
2224
2225        let user_messages = self.conversation.update(cx, |conversation, cx| {
2226            let selected_messages = conversation
2227                .messages_for_offsets(cursors, cx)
2228                .into_iter()
2229                .map(|message| message.id)
2230                .collect();
2231            conversation.assist(selected_messages, cx)
2232        });
2233        let new_selections = user_messages
2234            .iter()
2235            .map(|message| {
2236                let cursor = message
2237                    .start
2238                    .to_offset(self.conversation.read(cx).buffer.read(cx));
2239                cursor..cursor
2240            })
2241            .collect::<Vec<_>>();
2242        if !new_selections.is_empty() {
2243            self.editor.update(cx, |editor, cx| {
2244                editor.change_selections(
2245                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
2246                    cx,
2247                    |selections| selections.select_ranges(new_selections),
2248                );
2249            });
2250            // Avoid scrolling to the new cursor position so the assistant's output is stable.
2251            cx.defer(|this, _| this.scroll_position = None);
2252        }
2253    }
2254
2255    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2256        if !self
2257            .conversation
2258            .update(cx, |conversation, _| conversation.cancel_last_assist())
2259        {
2260            cx.propagate();
2261        }
2262    }
2263
2264    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
2265        let cursors = self.cursors(cx);
2266        self.conversation.update(cx, |conversation, cx| {
2267            let messages = conversation
2268                .messages_for_offsets(cursors, cx)
2269                .into_iter()
2270                .map(|message| message.id)
2271                .collect();
2272            conversation.cycle_message_roles(messages, cx)
2273        });
2274    }
2275
2276    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
2277        let selections = self.editor.read(cx).selections.all::<usize>(cx);
2278        selections
2279            .into_iter()
2280            .map(|selection| selection.head())
2281            .collect()
2282    }
2283
2284    fn handle_conversation_event(
2285        &mut self,
2286        _: Model<Conversation>,
2287        event: &ConversationEvent,
2288        cx: &mut ViewContext<Self>,
2289    ) {
2290        match event {
2291            ConversationEvent::MessagesEdited => {
2292                self.update_message_headers(cx);
2293                self.conversation.update(cx, |conversation, cx| {
2294                    conversation.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
2295                });
2296            }
2297            ConversationEvent::SummaryChanged => {
2298                cx.emit(ConversationEditorEvent::TabContentChanged);
2299                self.conversation.update(cx, |conversation, cx| {
2300                    conversation.save(None, self.fs.clone(), cx);
2301                });
2302            }
2303            ConversationEvent::StreamedCompletion => {
2304                self.editor.update(cx, |editor, cx| {
2305                    if let Some(scroll_position) = self.scroll_position {
2306                        let snapshot = editor.snapshot(cx);
2307                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
2308                        let scroll_top =
2309                            cursor_point.row() as f32 - scroll_position.offset_before_cursor.y;
2310                        editor.set_scroll_position(
2311                            point(scroll_position.offset_before_cursor.x, scroll_top),
2312                            cx,
2313                        );
2314                    }
2315                });
2316            }
2317        }
2318    }
2319
2320    fn handle_editor_event(
2321        &mut self,
2322        _: View<Editor>,
2323        event: &EditorEvent,
2324        cx: &mut ViewContext<Self>,
2325    ) {
2326        match event {
2327            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
2328                let cursor_scroll_position = self.cursor_scroll_position(cx);
2329                if *autoscroll {
2330                    self.scroll_position = cursor_scroll_position;
2331                } else if self.scroll_position != cursor_scroll_position {
2332                    self.scroll_position = None;
2333                }
2334            }
2335            EditorEvent::SelectionsChanged { .. } => {
2336                self.scroll_position = self.cursor_scroll_position(cx);
2337            }
2338            _ => {}
2339        }
2340    }
2341
2342    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2343        self.editor.update(cx, |editor, cx| {
2344            let snapshot = editor.snapshot(cx);
2345            let cursor = editor.selections.newest_anchor().head();
2346            let cursor_row = cursor.to_display_point(&snapshot.display_snapshot).row() as f32;
2347            let scroll_position = editor
2348                .scroll_manager
2349                .anchor()
2350                .scroll_position(&snapshot.display_snapshot);
2351
2352            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2353            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2354                Some(ScrollPosition {
2355                    cursor,
2356                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2357                })
2358            } else {
2359                None
2360            }
2361        })
2362    }
2363
2364    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2365        self.editor.update(cx, |editor, cx| {
2366            let buffer = editor.buffer().read(cx).snapshot(cx);
2367            let excerpt_id = *buffer.as_singleton().unwrap().0;
2368            let old_blocks = std::mem::take(&mut self.blocks);
2369            let new_blocks = self
2370                .conversation
2371                .read(cx)
2372                .messages(cx)
2373                .map(|message| BlockProperties {
2374                    position: buffer.anchor_in_excerpt(excerpt_id, message.anchor),
2375                    height: 2,
2376                    style: BlockStyle::Sticky,
2377                    render: Arc::new({
2378                        let conversation = self.conversation.clone();
2379                        move |_cx| {
2380                            let message_id = message.id;
2381                            let sender = ButtonLike::new("role")
2382                                .style(ButtonStyle::Filled)
2383                                .child(match message.role {
2384                                    Role::User => Label::new("You").color(Color::Default),
2385                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2386                                    Role::System => Label::new("System").color(Color::Warning),
2387                                })
2388                                .tooltip(|cx| {
2389                                    Tooltip::with_meta(
2390                                        "Toggle message role",
2391                                        None,
2392                                        "Available roles: You (User), Assistant, System",
2393                                        cx,
2394                                    )
2395                                })
2396                                .on_click({
2397                                    let conversation = conversation.clone();
2398                                    move |_, cx| {
2399                                        conversation.update(cx, |conversation, cx| {
2400                                            conversation.cycle_message_roles(
2401                                                HashSet::from_iter(Some(message_id)),
2402                                                cx,
2403                                            )
2404                                        })
2405                                    }
2406                                });
2407
2408                            h_flex()
2409                                .id(("message_header", message_id.0))
2410                                .h_11()
2411                                .relative()
2412                                .gap_1()
2413                                .child(sender)
2414                                // TODO: Only show this if the message if the message has been sent
2415                                .child(
2416                                    Label::new(
2417                                        FormatDistance::from_now(DateTimeType::Local(
2418                                            message.sent_at,
2419                                        ))
2420                                        .hide_prefix(true)
2421                                        .add_suffix(true)
2422                                        .to_string(),
2423                                    )
2424                                    .size(LabelSize::XSmall)
2425                                    .color(Color::Muted),
2426                                )
2427                                .children(
2428                                    if let MessageStatus::Error(error) = message.status.clone() {
2429                                        Some(
2430                                            div()
2431                                                .id("error")
2432                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2433                                                .child(Icon::new(IconName::XCircle)),
2434                                        )
2435                                    } else {
2436                                        None
2437                                    },
2438                                )
2439                                .into_any_element()
2440                        }
2441                    }),
2442                    disposition: BlockDisposition::Above,
2443                })
2444                .collect::<Vec<_>>();
2445
2446            editor.remove_blocks(old_blocks, None, cx);
2447            let ids = editor.insert_blocks(new_blocks, None, cx);
2448            self.blocks = HashSet::from_iter(ids);
2449        });
2450    }
2451
2452    fn quote_selection(
2453        workspace: &mut Workspace,
2454        _: &QuoteSelection,
2455        cx: &mut ViewContext<Workspace>,
2456    ) {
2457        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2458            return;
2459        };
2460        let Some(editor) = workspace
2461            .active_item(cx)
2462            .and_then(|item| item.act_as::<Editor>(cx))
2463        else {
2464            return;
2465        };
2466
2467        let editor = editor.read(cx);
2468        let range = editor.selections.newest::<usize>(cx).range();
2469        let buffer = editor.buffer().read(cx).snapshot(cx);
2470        let start_language = buffer.language_at(range.start);
2471        let end_language = buffer.language_at(range.end);
2472        let language_name = if start_language == end_language {
2473            start_language.map(|language| language.name())
2474        } else {
2475            None
2476        };
2477        let language_name = language_name.as_deref().unwrap_or("").to_lowercase();
2478
2479        let selected_text = buffer.text_for_range(range).collect::<String>();
2480        let text = if selected_text.is_empty() {
2481            None
2482        } else {
2483            Some(if language_name == "markdown" {
2484                selected_text
2485                    .lines()
2486                    .map(|line| format!("> {}", line))
2487                    .collect::<Vec<_>>()
2488                    .join("\n")
2489            } else {
2490                format!("```{language_name}\n{selected_text}\n```")
2491            })
2492        };
2493
2494        // Activate the panel
2495        if !panel.focus_handle(cx).contains_focused(cx) {
2496            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2497        }
2498
2499        if let Some(text) = text {
2500            panel.update(cx, |panel, cx| {
2501                let conversation = panel
2502                    .active_editor()
2503                    .cloned()
2504                    .unwrap_or_else(|| panel.new_conversation(cx));
2505                conversation.update(cx, |conversation, cx| {
2506                    conversation
2507                        .editor
2508                        .update(cx, |editor, cx| editor.insert(&text, cx))
2509                });
2510            });
2511        }
2512    }
2513
2514    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2515        let editor = self.editor.read(cx);
2516        let conversation = self.conversation.read(cx);
2517        if editor.selections.count() == 1 {
2518            let selection = editor.selections.newest::<usize>(cx);
2519            let mut copied_text = String::new();
2520            let mut spanned_messages = 0;
2521            for message in conversation.messages(cx) {
2522                if message.offset_range.start >= selection.range().end {
2523                    break;
2524                } else if message.offset_range.end >= selection.range().start {
2525                    let range = cmp::max(message.offset_range.start, selection.range().start)
2526                        ..cmp::min(message.offset_range.end, selection.range().end);
2527                    if !range.is_empty() {
2528                        spanned_messages += 1;
2529                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2530                        for chunk in conversation.buffer.read(cx).text_for_range(range) {
2531                            copied_text.push_str(&chunk);
2532                        }
2533                        copied_text.push('\n');
2534                    }
2535                }
2536            }
2537
2538            if spanned_messages > 1 {
2539                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2540                return;
2541            }
2542        }
2543
2544        cx.propagate();
2545    }
2546
2547    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2548        self.conversation.update(cx, |conversation, cx| {
2549            let selections = self.editor.read(cx).selections.disjoint_anchors();
2550            for selection in selections.into_iter() {
2551                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2552                let range = selection
2553                    .map(|endpoint| endpoint.to_offset(&buffer))
2554                    .range();
2555                conversation.split_message(range, cx);
2556            }
2557        });
2558    }
2559
2560    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2561        self.conversation.update(cx, |conversation, cx| {
2562            conversation.save(None, self.fs.clone(), cx)
2563        });
2564    }
2565
2566    fn cycle_model(&mut self, cx: &mut ViewContext<Self>) {
2567        self.conversation.update(cx, |conversation, cx| {
2568            let new_model = conversation.model.cycle();
2569            conversation.set_model(new_model, cx);
2570        });
2571    }
2572
2573    fn title(&self, cx: &AppContext) -> String {
2574        self.conversation
2575            .read(cx)
2576            .summary
2577            .as_ref()
2578            .map(|summary| summary.text.clone())
2579            .unwrap_or_else(|| "New Conversation".into())
2580    }
2581
2582    fn render_current_model(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2583        Button::new(
2584            "current_model",
2585            self.conversation.read(cx).model.short_name(),
2586        )
2587        .style(ButtonStyle::Filled)
2588        .tooltip(move |cx| Tooltip::text("Change Model", cx))
2589        .on_click(cx.listener(|this, _, cx| this.cycle_model(cx)))
2590    }
2591
2592    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2593        let remaining_tokens = self.conversation.read(cx).remaining_tokens()?;
2594        let remaining_tokens_color = if remaining_tokens <= 0 {
2595            Color::Error
2596        } else if remaining_tokens <= 500 {
2597            Color::Warning
2598        } else {
2599            Color::Default
2600        };
2601        Some(Label::new(remaining_tokens.to_string()).color(remaining_tokens_color))
2602    }
2603}
2604
2605impl EventEmitter<ConversationEditorEvent> for ConversationEditor {}
2606
2607impl Render for ConversationEditor {
2608    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2609        div()
2610            .key_context("ConversationEditor")
2611            .capture_action(cx.listener(ConversationEditor::cancel_last_assist))
2612            .capture_action(cx.listener(ConversationEditor::save))
2613            .capture_action(cx.listener(ConversationEditor::copy))
2614            .capture_action(cx.listener(ConversationEditor::cycle_message_role))
2615            .on_action(cx.listener(ConversationEditor::assist))
2616            .on_action(cx.listener(ConversationEditor::split))
2617            .size_full()
2618            .relative()
2619            .child(
2620                div()
2621                    .size_full()
2622                    .pl_4()
2623                    .bg(cx.theme().colors().editor_background)
2624                    .child(self.editor.clone()),
2625            )
2626            .child(
2627                h_flex()
2628                    .absolute()
2629                    .gap_1()
2630                    .top_3()
2631                    .right_5()
2632                    .child(self.render_current_model(cx))
2633                    .children(self.render_remaining_tokens(cx)),
2634            )
2635    }
2636}
2637
2638impl FocusableView for ConversationEditor {
2639    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2640        self.editor.focus_handle(cx)
2641    }
2642}
2643
2644#[derive(Clone, Debug)]
2645struct MessageAnchor {
2646    id: MessageId,
2647    start: language::Anchor,
2648}
2649
2650#[derive(Clone, Debug)]
2651pub struct Message {
2652    offset_range: Range<usize>,
2653    index_range: Range<usize>,
2654    id: MessageId,
2655    anchor: language::Anchor,
2656    role: Role,
2657    sent_at: DateTime<Local>,
2658    status: MessageStatus,
2659}
2660
2661impl Message {
2662    fn to_open_ai_message(&self, buffer: &Buffer) -> RequestMessage {
2663        let content = buffer
2664            .text_for_range(self.offset_range.clone())
2665            .collect::<String>();
2666        RequestMessage {
2667            role: self.role,
2668            content: content.trim_end().into(),
2669        }
2670    }
2671}
2672
2673enum InlineAssistantEvent {
2674    Confirmed {
2675        prompt: String,
2676        include_conversation: bool,
2677        retrieve_context: bool,
2678    },
2679    Canceled,
2680    Dismissed,
2681    IncludeConversationToggled {
2682        include_conversation: bool,
2683    },
2684    RetrieveContextToggled {
2685        retrieve_context: bool,
2686    },
2687}
2688
2689struct InlineAssistant {
2690    id: usize,
2691    prompt_editor: View<Editor>,
2692    workspace: WeakView<Workspace>,
2693    confirmed: bool,
2694    include_conversation: bool,
2695    measurements: Rc<Cell<BlockMeasurements>>,
2696    prompt_history: VecDeque<String>,
2697    prompt_history_ix: Option<usize>,
2698    pending_prompt: String,
2699    codegen: Model<Codegen>,
2700    _subscriptions: Vec<Subscription>,
2701    retrieve_context: bool,
2702    semantic_index: Option<Model<SemanticIndex>>,
2703    semantic_permissioned: Option<bool>,
2704    project: WeakModel<Project>,
2705    maintain_rate_limit: Option<Task<()>>,
2706}
2707
2708impl EventEmitter<InlineAssistantEvent> for InlineAssistant {}
2709
2710impl Render for InlineAssistant {
2711    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element {
2712        let measurements = self.measurements.get();
2713        h_flex()
2714            .w_full()
2715            .py_2()
2716            .border_y_1()
2717            .border_color(cx.theme().colors().border)
2718            .on_action(cx.listener(Self::confirm))
2719            .on_action(cx.listener(Self::cancel))
2720            .on_action(cx.listener(Self::toggle_include_conversation))
2721            .on_action(cx.listener(Self::toggle_retrieve_context))
2722            .on_action(cx.listener(Self::move_up))
2723            .on_action(cx.listener(Self::move_down))
2724            .child(
2725                h_flex()
2726                    .justify_center()
2727                    .w(measurements.gutter_width)
2728                    .child(
2729                        IconButton::new("include_conversation", IconName::Ai)
2730                            .on_click(cx.listener(|this, _, cx| {
2731                                this.toggle_include_conversation(&ToggleIncludeConversation, cx)
2732                            }))
2733                            .selected(self.include_conversation)
2734                            .tooltip(|cx| {
2735                                Tooltip::for_action(
2736                                    "Include Conversation",
2737                                    &ToggleIncludeConversation,
2738                                    cx,
2739                                )
2740                            }),
2741                    )
2742                    .children(if SemanticIndex::enabled(cx) {
2743                        Some(
2744                            IconButton::new("retrieve_context", IconName::MagnifyingGlass)
2745                                .on_click(cx.listener(|this, _, cx| {
2746                                    this.toggle_retrieve_context(&ToggleRetrieveContext, cx)
2747                                }))
2748                                .selected(self.retrieve_context)
2749                                .tooltip(|cx| {
2750                                    Tooltip::for_action(
2751                                        "Retrieve Context",
2752                                        &ToggleRetrieveContext,
2753                                        cx,
2754                                    )
2755                                }),
2756                        )
2757                    } else {
2758                        None
2759                    })
2760                    .children(if let Some(error) = self.codegen.read(cx).error() {
2761                        let error_message = SharedString::from(error.to_string());
2762                        Some(
2763                            div()
2764                                .id("error")
2765                                .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
2766                                .child(Icon::new(IconName::XCircle).color(Color::Error)),
2767                        )
2768                    } else {
2769                        None
2770                    }),
2771            )
2772            .child(
2773                h_flex()
2774                    .w_full()
2775                    .ml(measurements.anchor_x - measurements.gutter_width)
2776                    .child(self.render_prompt_editor(cx)),
2777            )
2778            .children(if self.retrieve_context {
2779                self.retrieve_context_status(cx)
2780            } else {
2781                None
2782            })
2783    }
2784}
2785
2786impl FocusableView for InlineAssistant {
2787    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2788        self.prompt_editor.focus_handle(cx)
2789    }
2790}
2791
2792impl InlineAssistant {
2793    fn new(
2794        id: usize,
2795        measurements: Rc<Cell<BlockMeasurements>>,
2796        include_conversation: bool,
2797        prompt_history: VecDeque<String>,
2798        codegen: Model<Codegen>,
2799        workspace: WeakView<Workspace>,
2800        cx: &mut ViewContext<Self>,
2801        retrieve_context: bool,
2802        semantic_index: Option<Model<SemanticIndex>>,
2803        project: Model<Project>,
2804    ) -> Self {
2805        let prompt_editor = cx.new_view(|cx| {
2806            let mut editor = Editor::single_line(cx);
2807            let placeholder = match codegen.read(cx).kind() {
2808                CodegenKind::Transform { .. } => "Enter transformation prompt…",
2809                CodegenKind::Generate { .. } => "Enter generation prompt…",
2810            };
2811            editor.set_placeholder_text(placeholder, cx);
2812            editor
2813        });
2814        cx.focus_view(&prompt_editor);
2815
2816        let mut subscriptions = vec![
2817            cx.observe(&codegen, Self::handle_codegen_changed),
2818            cx.subscribe(&prompt_editor, Self::handle_prompt_editor_events),
2819        ];
2820
2821        if let Some(semantic_index) = semantic_index.clone() {
2822            subscriptions.push(cx.observe(&semantic_index, Self::semantic_index_changed));
2823        }
2824
2825        let assistant = Self {
2826            id,
2827            prompt_editor,
2828            workspace,
2829            confirmed: false,
2830            include_conversation,
2831            measurements,
2832            prompt_history,
2833            prompt_history_ix: None,
2834            pending_prompt: String::new(),
2835            codegen,
2836            _subscriptions: subscriptions,
2837            retrieve_context,
2838            semantic_permissioned: None,
2839            semantic_index,
2840            project: project.downgrade(),
2841            maintain_rate_limit: None,
2842        };
2843
2844        assistant.index_project(cx).log_err();
2845
2846        assistant
2847    }
2848
2849    fn semantic_permissioned(&self, cx: &mut ViewContext<Self>) -> Task<Result<bool>> {
2850        if let Some(value) = self.semantic_permissioned {
2851            return Task::ready(Ok(value));
2852        }
2853
2854        let Some(project) = self.project.upgrade() else {
2855            return Task::ready(Err(anyhow!("project was dropped")));
2856        };
2857
2858        self.semantic_index
2859            .as_ref()
2860            .map(|semantic| {
2861                semantic.update(cx, |this, cx| this.project_previously_indexed(&project, cx))
2862            })
2863            .unwrap_or(Task::ready(Ok(false)))
2864    }
2865
2866    fn handle_prompt_editor_events(
2867        &mut self,
2868        _: View<Editor>,
2869        event: &EditorEvent,
2870        cx: &mut ViewContext<Self>,
2871    ) {
2872        if let EditorEvent::Edited = event {
2873            self.pending_prompt = self.prompt_editor.read(cx).text(cx);
2874            cx.notify();
2875        }
2876    }
2877
2878    fn semantic_index_changed(
2879        &mut self,
2880        semantic_index: Model<SemanticIndex>,
2881        cx: &mut ViewContext<Self>,
2882    ) {
2883        let Some(project) = self.project.upgrade() else {
2884            return;
2885        };
2886
2887        let status = semantic_index.read(cx).status(&project);
2888        match status {
2889            SemanticIndexStatus::Indexing {
2890                rate_limit_expiry: Some(_),
2891                ..
2892            } => {
2893                if self.maintain_rate_limit.is_none() {
2894                    self.maintain_rate_limit = Some(cx.spawn(|this, mut cx| async move {
2895                        loop {
2896                            cx.background_executor().timer(Duration::from_secs(1)).await;
2897                            this.update(&mut cx, |_, cx| cx.notify()).log_err();
2898                        }
2899                    }));
2900                }
2901                return;
2902            }
2903            _ => {
2904                self.maintain_rate_limit = None;
2905            }
2906        }
2907    }
2908
2909    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
2910        let is_read_only = !self.codegen.read(cx).idle();
2911        self.prompt_editor.update(cx, |editor, cx| {
2912            let was_read_only = editor.read_only(cx);
2913            if was_read_only != is_read_only {
2914                if is_read_only {
2915                    editor.set_read_only(true);
2916                } else {
2917                    self.confirmed = false;
2918                    editor.set_read_only(false);
2919                }
2920            }
2921        });
2922        cx.notify();
2923    }
2924
2925    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
2926        cx.emit(InlineAssistantEvent::Canceled);
2927    }
2928
2929    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
2930        if self.confirmed {
2931            cx.emit(InlineAssistantEvent::Dismissed);
2932        } else {
2933            report_assistant_event(self.workspace.clone(), None, AssistantKind::Inline, cx);
2934
2935            let prompt = self.prompt_editor.read(cx).text(cx);
2936            self.prompt_editor
2937                .update(cx, |editor, _cx| editor.set_read_only(true));
2938            cx.emit(InlineAssistantEvent::Confirmed {
2939                prompt,
2940                include_conversation: self.include_conversation,
2941                retrieve_context: self.retrieve_context,
2942            });
2943            self.confirmed = true;
2944            cx.notify();
2945        }
2946    }
2947
2948    fn toggle_retrieve_context(&mut self, _: &ToggleRetrieveContext, cx: &mut ViewContext<Self>) {
2949        let semantic_permissioned = self.semantic_permissioned(cx);
2950
2951        let Some(project) = self.project.upgrade() else {
2952            return;
2953        };
2954
2955        let project_name = project
2956            .read(cx)
2957            .worktree_root_names(cx)
2958            .collect::<Vec<&str>>()
2959            .join("/");
2960        let is_plural = project_name.chars().filter(|letter| *letter == '/').count() > 0;
2961        let prompt_text = format!("Would you like to index the '{}' project{} for context retrieval? This requires sending code to the OpenAI API", project_name,
2962            if is_plural {
2963                "s"
2964            } else {""});
2965
2966        cx.spawn(|this, mut cx| async move {
2967            // If Necessary prompt user
2968            if !semantic_permissioned.await.unwrap_or(false) {
2969                let answer = this.update(&mut cx, |_, cx| {
2970                    cx.prompt(
2971                        PromptLevel::Info,
2972                        prompt_text.as_str(),
2973                        None,
2974                        &["Continue", "Cancel"],
2975                    )
2976                })?;
2977
2978                if answer.await? == 0 {
2979                    this.update(&mut cx, |this, _| {
2980                        this.semantic_permissioned = Some(true);
2981                    })?;
2982                } else {
2983                    return anyhow::Ok(());
2984                }
2985            }
2986
2987            // If permissioned, update context appropriately
2988            this.update(&mut cx, |this, cx| {
2989                this.retrieve_context = !this.retrieve_context;
2990
2991                cx.emit(InlineAssistantEvent::RetrieveContextToggled {
2992                    retrieve_context: this.retrieve_context,
2993                });
2994
2995                if this.retrieve_context {
2996                    this.index_project(cx).log_err();
2997                }
2998
2999                cx.notify();
3000            })?;
3001
3002            anyhow::Ok(())
3003        })
3004        .detach_and_log_err(cx);
3005    }
3006
3007    fn index_project(&self, cx: &mut ViewContext<Self>) -> anyhow::Result<()> {
3008        let Some(project) = self.project.upgrade() else {
3009            return Err(anyhow!("project was dropped!"));
3010        };
3011
3012        let semantic_permissioned = self.semantic_permissioned(cx);
3013        if let Some(semantic_index) = SemanticIndex::global(cx) {
3014            cx.spawn(|_, mut cx| async move {
3015                // This has to be updated to accommodate for semantic_permissions
3016                if semantic_permissioned.await.unwrap_or(false) {
3017                    semantic_index
3018                        .update(&mut cx, |index, cx| index.index_project(project, cx))?
3019                        .await
3020                } else {
3021                    Err(anyhow!("project is not permissioned for semantic indexing"))
3022                }
3023            })
3024            .detach_and_log_err(cx);
3025        }
3026
3027        anyhow::Ok(())
3028    }
3029
3030    fn retrieve_context_status(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
3031        let Some(project) = self.project.upgrade() else {
3032            return None;
3033        };
3034
3035        let semantic_index = SemanticIndex::global(cx)?;
3036        let status = semantic_index.update(cx, |index, _| index.status(&project));
3037        match status {
3038            SemanticIndexStatus::NotAuthenticated {} => Some(
3039                div()
3040                    .id("error")
3041                    .tooltip(|cx| Tooltip::text("Not Authenticated. Please ensure you have a valid 'OPENAI_API_KEY' in your environment variables.", cx))
3042                    .child(Icon::new(IconName::XCircle))
3043                    .into_any_element()
3044            ),
3045
3046            SemanticIndexStatus::NotIndexed {} => Some(
3047                div()
3048                    .id("error")
3049                    .tooltip(|cx| Tooltip::text("Not Indexed", cx))
3050                    .child(Icon::new(IconName::XCircle))
3051                    .into_any_element()
3052            ),
3053
3054            SemanticIndexStatus::Indexing {
3055                remaining_files,
3056                rate_limit_expiry,
3057            } => {
3058                let mut status_text = if remaining_files == 0 {
3059                    "Indexing...".to_string()
3060                } else {
3061                    format!("Remaining files to index: {remaining_files}")
3062                };
3063
3064                if let Some(rate_limit_expiry) = rate_limit_expiry {
3065                    let remaining_seconds = rate_limit_expiry.duration_since(Instant::now());
3066                    if remaining_seconds > Duration::from_secs(0) && remaining_files > 0 {
3067                        write!(
3068                            status_text,
3069                            " (rate limit expires in {}s)",
3070                            remaining_seconds.as_secs()
3071                        )
3072                        .unwrap();
3073                    }
3074                }
3075
3076                let status_text = SharedString::from(status_text);
3077                Some(
3078                    div()
3079                        .id("update")
3080                        .tooltip(move |cx| Tooltip::text(status_text.clone(), cx))
3081                        .child(Icon::new(IconName::Update).color(Color::Info))
3082                        .into_any_element()
3083                )
3084            }
3085
3086            SemanticIndexStatus::Indexed {} => Some(
3087                div()
3088                    .id("check")
3089                    .tooltip(|cx| Tooltip::text("Index up to date", cx))
3090                    .child(Icon::new(IconName::Check).color(Color::Success))
3091                    .into_any_element()
3092            ),
3093        }
3094    }
3095
3096    fn toggle_include_conversation(
3097        &mut self,
3098        _: &ToggleIncludeConversation,
3099        cx: &mut ViewContext<Self>,
3100    ) {
3101        self.include_conversation = !self.include_conversation;
3102        cx.emit(InlineAssistantEvent::IncludeConversationToggled {
3103            include_conversation: self.include_conversation,
3104        });
3105        cx.notify();
3106    }
3107
3108    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3109        if let Some(ix) = self.prompt_history_ix {
3110            if ix > 0 {
3111                self.prompt_history_ix = Some(ix - 1);
3112                let prompt = self.prompt_history[ix - 1].clone();
3113                self.set_prompt(&prompt, cx);
3114            }
3115        } else if !self.prompt_history.is_empty() {
3116            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
3117            let prompt = self.prompt_history[self.prompt_history.len() - 1].clone();
3118            self.set_prompt(&prompt, cx);
3119        }
3120    }
3121
3122    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3123        if let Some(ix) = self.prompt_history_ix {
3124            if ix < self.prompt_history.len() - 1 {
3125                self.prompt_history_ix = Some(ix + 1);
3126                let prompt = self.prompt_history[ix + 1].clone();
3127                self.set_prompt(&prompt, cx);
3128            } else {
3129                self.prompt_history_ix = None;
3130                let pending_prompt = self.pending_prompt.clone();
3131                self.set_prompt(&pending_prompt, cx);
3132            }
3133        }
3134    }
3135
3136    fn set_prompt(&mut self, prompt: &str, cx: &mut ViewContext<Self>) {
3137        self.prompt_editor.update(cx, |editor, cx| {
3138            editor.buffer().update(cx, |buffer, cx| {
3139                let len = buffer.len(cx);
3140                buffer.edit([(0..len, prompt)], None, cx);
3141            });
3142        });
3143    }
3144
3145    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3146        let settings = ThemeSettings::get_global(cx);
3147        let text_style = TextStyle {
3148            color: if self.prompt_editor.read(cx).read_only(cx) {
3149                cx.theme().colors().text_disabled
3150            } else {
3151                cx.theme().colors().text
3152            },
3153            font_family: settings.ui_font.family.clone(),
3154            font_features: settings.ui_font.features,
3155            font_size: rems(0.875).into(),
3156            font_weight: FontWeight::NORMAL,
3157            font_style: FontStyle::Normal,
3158            line_height: relative(1.3).into(),
3159            background_color: None,
3160            underline: None,
3161            white_space: WhiteSpace::Normal,
3162        };
3163        EditorElement::new(
3164            &self.prompt_editor,
3165            EditorStyle {
3166                background: cx.theme().colors().editor_background,
3167                local_player: cx.theme().players().local(),
3168                text: text_style,
3169                ..Default::default()
3170            },
3171        )
3172    }
3173}
3174
3175// This wouldn't need to exist if we could pass parameters when rendering child views.
3176#[derive(Copy, Clone, Default)]
3177struct BlockMeasurements {
3178    anchor_x: Pixels,
3179    gutter_width: Pixels,
3180}
3181
3182struct PendingInlineAssist {
3183    editor: WeakView<Editor>,
3184    inline_assistant: Option<(BlockId, View<InlineAssistant>)>,
3185    codegen: Model<Codegen>,
3186    _subscriptions: Vec<Subscription>,
3187    project: WeakModel<Project>,
3188}
3189
3190fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3191    ranges.sort_unstable_by(|a, b| {
3192        a.start
3193            .cmp(&b.start, buffer)
3194            .then_with(|| b.end.cmp(&a.end, buffer))
3195    });
3196
3197    let mut ix = 0;
3198    while ix + 1 < ranges.len() {
3199        let b = ranges[ix + 1].clone();
3200        let a = &mut ranges[ix];
3201        if a.end.cmp(&b.start, buffer).is_gt() {
3202            if a.end.cmp(&b.end, buffer).is_lt() {
3203                a.end = b.end;
3204            }
3205            ranges.remove(ix + 1);
3206        } else {
3207            ix += 1;
3208        }
3209    }
3210}
3211
3212#[cfg(test)]
3213mod tests {
3214    use super::*;
3215    use crate::MessageId;
3216    use ai::test::FakeCompletionProvider;
3217    use gpui::{AppContext, TestAppContext};
3218    use settings::SettingsStore;
3219
3220    #[gpui::test]
3221    fn test_inserting_and_removing_messages(cx: &mut AppContext) {
3222        let settings_store = SettingsStore::test(cx);
3223        cx.set_global(settings_store);
3224        init(cx);
3225        let registry = Arc::new(LanguageRegistry::test());
3226
3227        let completion_provider = Arc::new(FakeCompletionProvider::new());
3228        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3229        let buffer = conversation.read(cx).buffer.clone();
3230
3231        let message_1 = conversation.read(cx).message_anchors[0].clone();
3232        assert_eq!(
3233            messages(&conversation, cx),
3234            vec![(message_1.id, Role::User, 0..0)]
3235        );
3236
3237        let message_2 = conversation.update(cx, |conversation, cx| {
3238            conversation
3239                .insert_message_after(message_1.id, Role::Assistant, MessageStatus::Done, cx)
3240                .unwrap()
3241        });
3242        assert_eq!(
3243            messages(&conversation, cx),
3244            vec![
3245                (message_1.id, Role::User, 0..1),
3246                (message_2.id, Role::Assistant, 1..1)
3247            ]
3248        );
3249
3250        buffer.update(cx, |buffer, cx| {
3251            buffer.edit([(0..0, "1"), (1..1, "2")], None, cx)
3252        });
3253        assert_eq!(
3254            messages(&conversation, cx),
3255            vec![
3256                (message_1.id, Role::User, 0..2),
3257                (message_2.id, Role::Assistant, 2..3)
3258            ]
3259        );
3260
3261        let message_3 = conversation.update(cx, |conversation, cx| {
3262            conversation
3263                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3264                .unwrap()
3265        });
3266        assert_eq!(
3267            messages(&conversation, cx),
3268            vec![
3269                (message_1.id, Role::User, 0..2),
3270                (message_2.id, Role::Assistant, 2..4),
3271                (message_3.id, Role::User, 4..4)
3272            ]
3273        );
3274
3275        let message_4 = conversation.update(cx, |conversation, cx| {
3276            conversation
3277                .insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3278                .unwrap()
3279        });
3280        assert_eq!(
3281            messages(&conversation, cx),
3282            vec![
3283                (message_1.id, Role::User, 0..2),
3284                (message_2.id, Role::Assistant, 2..4),
3285                (message_4.id, Role::User, 4..5),
3286                (message_3.id, Role::User, 5..5),
3287            ]
3288        );
3289
3290        buffer.update(cx, |buffer, cx| {
3291            buffer.edit([(4..4, "C"), (5..5, "D")], None, cx)
3292        });
3293        assert_eq!(
3294            messages(&conversation, cx),
3295            vec![
3296                (message_1.id, Role::User, 0..2),
3297                (message_2.id, Role::Assistant, 2..4),
3298                (message_4.id, Role::User, 4..6),
3299                (message_3.id, Role::User, 6..7),
3300            ]
3301        );
3302
3303        // Deleting across message boundaries merges the messages.
3304        buffer.update(cx, |buffer, cx| buffer.edit([(1..4, "")], None, cx));
3305        assert_eq!(
3306            messages(&conversation, cx),
3307            vec![
3308                (message_1.id, Role::User, 0..3),
3309                (message_3.id, Role::User, 3..4),
3310            ]
3311        );
3312
3313        // Undoing the deletion should also undo the merge.
3314        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3315        assert_eq!(
3316            messages(&conversation, cx),
3317            vec![
3318                (message_1.id, Role::User, 0..2),
3319                (message_2.id, Role::Assistant, 2..4),
3320                (message_4.id, Role::User, 4..6),
3321                (message_3.id, Role::User, 6..7),
3322            ]
3323        );
3324
3325        // Redoing the deletion should also redo the merge.
3326        buffer.update(cx, |buffer, cx| buffer.redo(cx));
3327        assert_eq!(
3328            messages(&conversation, cx),
3329            vec![
3330                (message_1.id, Role::User, 0..3),
3331                (message_3.id, Role::User, 3..4),
3332            ]
3333        );
3334
3335        // Ensure we can still insert after a merged message.
3336        let message_5 = conversation.update(cx, |conversation, cx| {
3337            conversation
3338                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3339                .unwrap()
3340        });
3341        assert_eq!(
3342            messages(&conversation, cx),
3343            vec![
3344                (message_1.id, Role::User, 0..3),
3345                (message_5.id, Role::System, 3..4),
3346                (message_3.id, Role::User, 4..5)
3347            ]
3348        );
3349    }
3350
3351    #[gpui::test]
3352    fn test_message_splitting(cx: &mut AppContext) {
3353        let settings_store = SettingsStore::test(cx);
3354        cx.set_global(settings_store);
3355        init(cx);
3356        let registry = Arc::new(LanguageRegistry::test());
3357        let completion_provider = Arc::new(FakeCompletionProvider::new());
3358
3359        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3360        let buffer = conversation.read(cx).buffer.clone();
3361
3362        let message_1 = conversation.read(cx).message_anchors[0].clone();
3363        assert_eq!(
3364            messages(&conversation, cx),
3365            vec![(message_1.id, Role::User, 0..0)]
3366        );
3367
3368        buffer.update(cx, |buffer, cx| {
3369            buffer.edit([(0..0, "aaa\nbbb\nccc\nddd\n")], None, cx)
3370        });
3371
3372        let (_, message_2) =
3373            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3374        let message_2 = message_2.unwrap();
3375
3376        // We recycle newlines in the middle of a split message
3377        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\nddd\n");
3378        assert_eq!(
3379            messages(&conversation, cx),
3380            vec![
3381                (message_1.id, Role::User, 0..4),
3382                (message_2.id, Role::User, 4..16),
3383            ]
3384        );
3385
3386        let (_, message_3) =
3387            conversation.update(cx, |conversation, cx| conversation.split_message(3..3, cx));
3388        let message_3 = message_3.unwrap();
3389
3390        // We don't recycle newlines at the end of a split message
3391        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3392        assert_eq!(
3393            messages(&conversation, cx),
3394            vec![
3395                (message_1.id, Role::User, 0..4),
3396                (message_3.id, Role::User, 4..5),
3397                (message_2.id, Role::User, 5..17),
3398            ]
3399        );
3400
3401        let (_, message_4) =
3402            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3403        let message_4 = message_4.unwrap();
3404        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\nccc\nddd\n");
3405        assert_eq!(
3406            messages(&conversation, cx),
3407            vec![
3408                (message_1.id, Role::User, 0..4),
3409                (message_3.id, Role::User, 4..5),
3410                (message_2.id, Role::User, 5..9),
3411                (message_4.id, Role::User, 9..17),
3412            ]
3413        );
3414
3415        let (_, message_5) =
3416            conversation.update(cx, |conversation, cx| conversation.split_message(9..9, cx));
3417        let message_5 = message_5.unwrap();
3418        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\nddd\n");
3419        assert_eq!(
3420            messages(&conversation, cx),
3421            vec![
3422                (message_1.id, Role::User, 0..4),
3423                (message_3.id, Role::User, 4..5),
3424                (message_2.id, Role::User, 5..9),
3425                (message_4.id, Role::User, 9..10),
3426                (message_5.id, Role::User, 10..18),
3427            ]
3428        );
3429
3430        let (message_6, message_7) = conversation.update(cx, |conversation, cx| {
3431            conversation.split_message(14..16, cx)
3432        });
3433        let message_6 = message_6.unwrap();
3434        let message_7 = message_7.unwrap();
3435        assert_eq!(buffer.read(cx).text(), "aaa\n\nbbb\n\nccc\ndd\nd\n");
3436        assert_eq!(
3437            messages(&conversation, cx),
3438            vec![
3439                (message_1.id, Role::User, 0..4),
3440                (message_3.id, Role::User, 4..5),
3441                (message_2.id, Role::User, 5..9),
3442                (message_4.id, Role::User, 9..10),
3443                (message_5.id, Role::User, 10..14),
3444                (message_6.id, Role::User, 14..17),
3445                (message_7.id, Role::User, 17..19),
3446            ]
3447        );
3448    }
3449
3450    #[gpui::test]
3451    fn test_messages_for_offsets(cx: &mut AppContext) {
3452        let settings_store = SettingsStore::test(cx);
3453        cx.set_global(settings_store);
3454        init(cx);
3455        let registry = Arc::new(LanguageRegistry::test());
3456        let completion_provider = Arc::new(FakeCompletionProvider::new());
3457        let conversation = cx.new_model(|cx| Conversation::new(registry, cx, completion_provider));
3458        let buffer = conversation.read(cx).buffer.clone();
3459
3460        let message_1 = conversation.read(cx).message_anchors[0].clone();
3461        assert_eq!(
3462            messages(&conversation, cx),
3463            vec![(message_1.id, Role::User, 0..0)]
3464        );
3465
3466        buffer.update(cx, |buffer, cx| buffer.edit([(0..0, "aaa")], None, cx));
3467        let message_2 = conversation
3468            .update(cx, |conversation, cx| {
3469                conversation.insert_message_after(message_1.id, Role::User, MessageStatus::Done, cx)
3470            })
3471            .unwrap();
3472        buffer.update(cx, |buffer, cx| buffer.edit([(4..4, "bbb")], None, cx));
3473
3474        let message_3 = conversation
3475            .update(cx, |conversation, cx| {
3476                conversation.insert_message_after(message_2.id, Role::User, MessageStatus::Done, cx)
3477            })
3478            .unwrap();
3479        buffer.update(cx, |buffer, cx| buffer.edit([(8..8, "ccc")], None, cx));
3480
3481        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc");
3482        assert_eq!(
3483            messages(&conversation, cx),
3484            vec![
3485                (message_1.id, Role::User, 0..4),
3486                (message_2.id, Role::User, 4..8),
3487                (message_3.id, Role::User, 8..11)
3488            ]
3489        );
3490
3491        assert_eq!(
3492            message_ids_for_offsets(&conversation, &[0, 4, 9], cx),
3493            [message_1.id, message_2.id, message_3.id]
3494        );
3495        assert_eq!(
3496            message_ids_for_offsets(&conversation, &[0, 1, 11], cx),
3497            [message_1.id, message_3.id]
3498        );
3499
3500        let message_4 = conversation
3501            .update(cx, |conversation, cx| {
3502                conversation.insert_message_after(message_3.id, Role::User, MessageStatus::Done, cx)
3503            })
3504            .unwrap();
3505        assert_eq!(buffer.read(cx).text(), "aaa\nbbb\nccc\n");
3506        assert_eq!(
3507            messages(&conversation, cx),
3508            vec![
3509                (message_1.id, Role::User, 0..4),
3510                (message_2.id, Role::User, 4..8),
3511                (message_3.id, Role::User, 8..12),
3512                (message_4.id, Role::User, 12..12)
3513            ]
3514        );
3515        assert_eq!(
3516            message_ids_for_offsets(&conversation, &[0, 4, 8, 12], cx),
3517            [message_1.id, message_2.id, message_3.id, message_4.id]
3518        );
3519
3520        fn message_ids_for_offsets(
3521            conversation: &Model<Conversation>,
3522            offsets: &[usize],
3523            cx: &AppContext,
3524        ) -> Vec<MessageId> {
3525            conversation
3526                .read(cx)
3527                .messages_for_offsets(offsets.iter().copied(), cx)
3528                .into_iter()
3529                .map(|message| message.id)
3530                .collect()
3531        }
3532    }
3533
3534    #[gpui::test]
3535    async fn test_serialization(cx: &mut TestAppContext) {
3536        let settings_store = cx.update(SettingsStore::test);
3537        cx.set_global(settings_store);
3538        cx.update(init);
3539        let registry = Arc::new(LanguageRegistry::test());
3540        let completion_provider = Arc::new(FakeCompletionProvider::new());
3541        let conversation =
3542            cx.new_model(|cx| Conversation::new(registry.clone(), cx, completion_provider));
3543        let buffer = conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3544        let message_0 =
3545            conversation.read_with(cx, |conversation, _| conversation.message_anchors[0].id);
3546        let message_1 = conversation.update(cx, |conversation, cx| {
3547            conversation
3548                .insert_message_after(message_0, Role::Assistant, MessageStatus::Done, cx)
3549                .unwrap()
3550        });
3551        let message_2 = conversation.update(cx, |conversation, cx| {
3552            conversation
3553                .insert_message_after(message_1.id, Role::System, MessageStatus::Done, cx)
3554                .unwrap()
3555        });
3556        buffer.update(cx, |buffer, cx| {
3557            buffer.edit([(0..0, "a"), (1..1, "b\nc")], None, cx);
3558            buffer.finalize_last_transaction();
3559        });
3560        let _message_3 = conversation.update(cx, |conversation, cx| {
3561            conversation
3562                .insert_message_after(message_2.id, Role::System, MessageStatus::Done, cx)
3563                .unwrap()
3564        });
3565        buffer.update(cx, |buffer, cx| buffer.undo(cx));
3566        assert_eq!(buffer.read_with(cx, |buffer, _| buffer.text()), "a\nb\nc\n");
3567        assert_eq!(
3568            cx.read(|cx| messages(&conversation, cx)),
3569            [
3570                (message_0, Role::User, 0..2),
3571                (message_1.id, Role::Assistant, 2..6),
3572                (message_2.id, Role::System, 6..6),
3573            ]
3574        );
3575
3576        let deserialized_conversation = Conversation::deserialize(
3577            conversation.read_with(cx, |conversation, cx| conversation.serialize(cx)),
3578            Default::default(),
3579            registry.clone(),
3580            &mut cx.to_async(),
3581        )
3582        .await
3583        .unwrap();
3584        let deserialized_buffer =
3585            deserialized_conversation.read_with(cx, |conversation, _| conversation.buffer.clone());
3586        assert_eq!(
3587            deserialized_buffer.read_with(cx, |buffer, _| buffer.text()),
3588            "a\nb\nc\n"
3589        );
3590        assert_eq!(
3591            cx.read(|cx| messages(&deserialized_conversation, cx)),
3592            [
3593                (message_0, Role::User, 0..2),
3594                (message_1.id, Role::Assistant, 2..6),
3595                (message_2.id, Role::System, 6..6),
3596            ]
3597        );
3598    }
3599
3600    fn messages(
3601        conversation: &Model<Conversation>,
3602        cx: &AppContext,
3603    ) -> Vec<(MessageId, Role, Range<usize>)> {
3604        conversation
3605            .read(cx)
3606            .messages(cx)
3607            .map(|message| (message.id, message.role, message.offset_range))
3608            .collect()
3609    }
3610}
3611
3612fn report_assistant_event(
3613    workspace: WeakView<Workspace>,
3614    conversation_id: Option<String>,
3615    assistant_kind: AssistantKind,
3616    cx: &AppContext,
3617) {
3618    let Some(workspace) = workspace.upgrade() else {
3619        return;
3620    };
3621
3622    let client = workspace.read(cx).project().read(cx).client();
3623    let telemetry = client.telemetry();
3624
3625    let model = AssistantSettings::get_global(cx)
3626        .default_open_ai_model
3627        .clone();
3628
3629    telemetry.report_assistant_event(conversation_id, assistant_kind, model.full_name())
3630}