use crate::{Keep, KeepAll, OpenAgentDiff, Reject, RejectAll};use acp_thread::{AcpThread, AcpThreadEvent};use action_log::{ActionLogTelemetry, LastRejectUndo};use agent_settings::AgentSettings;use anyhow::Result;use buffer_diff::DiffHunkStatus;use collections::{HashMap, HashSet};use editor::{    Direction, Editor, EditorEvent, EditorSettings, MultiBuffer, MultiBufferSnapshot,    SelectionEffects, ToPoint,    actions::{GoToHunk, GoToPreviousHunk},    multibuffer_context_lines,    scroll::Autoscroll,}; use gpui::{    Action, AnyElement, App, AppContext, Empty, Entity, EventEmitter, FocusHandle, Focusable,    Global, SharedString, Subscription, Task, WeakEntity, Window, prelude::*,}; use language::{Buffer, Capability, OffsetRangeExt, Point};use multi_buffer::PathKey;use project::{Project, ProjectItem, ProjectPath};use settings::{Settings, SettingsStore};use std::{    any::{Any, TypeId},    collections::hash_map::Entry,    ops::Range,    sync::Arc,};use ui::{CommonAnimationExt, IconButtonShape, KeyBinding, Tooltip, prelude::*, vertical_divider};use util::ResultExt;use workspace::{    Item, ItemHandle, ItemNavHistory, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,    Workspace,    item::{ItemEvent, SaveOptions, TabContentParams},    searchable::SearchableItemHandle,};use zed_actions::assistant::ToggleFocus; pub struct AgentDiffPane {    multibuffer: Entity<MultiBuffer>,    editor: Entity<Editor>,    thread: Entity<AcpThread>,    focus_handle: FocusHandle,    workspace: WeakEntity<Workspace>,    title: SharedString,    _subscriptions: Vec<Subscription>,} impl AgentDiffPane {    pub fn deploy(        thread: Entity<AcpThread>,        workspace: WeakEntity<Workspace>,        window: &mut Window,        cx: &mut App,    ) -> Result<Entity<Self>> {        workspace.update(cx, |workspace, cx| {            Self::deploy_in_workspace(thread, workspace, window, cx)        })    }     pub fn deploy_in_workspace(        thread: Entity<AcpThread>,        workspace: &mut Workspace,        window: &mut Window,        cx: &mut Context<Workspace>,    ) -> Entity<Self> {        let existing_diff = workspace            .items_of_type::<AgentDiffPane>(cx)            .find(|diff| diff.read(cx).thread == thread);         if let Some(existing_diff) = existing_diff {            workspace.activate_item(&existing_diff, true, true, window, cx);            existing_diff        } else {            let agent_diff = cx                .new(|cx| AgentDiffPane::new(thread.clone(), workspace.weak_handle(), window, cx));            workspace.add_item_to_center(Box::new(agent_diff.clone()), window, cx);            agent_diff        }    }     pub fn new(        thread: Entity<AcpThread>,        workspace: WeakEntity<Workspace>,        window: &mut Window,        cx: &mut Context<Self>,    ) -> Self {        let focus_handle = cx.focus_handle();        let multibuffer = cx.new(|_| MultiBuffer::new(Capability::ReadWrite));         let project = thread.read(cx).project().clone();        let editor = cx.new(|cx| {            let mut editor =                Editor::for_multibuffer(multibuffer.clone(), Some(project.clone()), window, cx);            editor.disable_inline_diagnostics();            editor.set_expand_all_diff_hunks(cx);            editor                .set_render_diff_hunk_controls(diff_hunk_controls(&thread, workspace.clone()), cx);            editor.register_addon(AgentDiffAddon);            editor        });         let action_log = thread.read(cx).action_log().clone();         let mut this = Self {            _subscriptions: vec![                cx.observe_in(&action_log, window, |this, _action_log, window, cx| {                    this.update_excerpts(window, cx)                }),                cx.subscribe(&thread, |this, _thread, event, cx| {                    this.handle_acp_thread_event(event, cx)                }),            ],            title: SharedString::default(),            multibuffer,            editor,            thread,            focus_handle,            workspace,        };        this.update_excerpts(window, cx);        this.update_title(cx);        this    }     fn update_excerpts(&mut self, window: &mut Window, cx: &mut Context<Self>) {        let changed_buffers = self            .thread            .read(cx)            .action_log()            .read(cx)            .changed_buffers(cx);         // Sort edited files alphabetically for consistency with Git diff view        let mut sorted_buffers: Vec<_> = changed_buffers.iter().collect();        sorted_buffers.sort_by(|(buffer_a, _), (buffer_b, _)| {            let path_a = buffer_a.read(cx).file().map(|f| f.path().clone());            let path_b = buffer_b.read(cx).file().map(|f| f.path().clone());            path_a.cmp(&path_b)        });         let mut paths_to_delete = self            .multibuffer            .read(cx)            .paths()            .cloned()            .collect::<HashSet<_>>();         for (buffer, diff_handle) in sorted_buffers {            if buffer.read(cx).file().is_none() {                continue;            }             let path_key = PathKey::for_buffer(&buffer, cx);            paths_to_delete.remove(&path_key);             let snapshot = buffer.read(cx).snapshot();             let diff_hunk_ranges = diff_handle                .read(cx)                .snapshot(cx)                .hunks_intersecting_range(                    language::Anchor::min_max_range_for_buffer(snapshot.remote_id()),                    &snapshot,                )                .map(|diff_hunk| diff_hunk.buffer_range.to_point(&snapshot))                .collect::<Vec<_>>();             let (was_empty, is_excerpt_newly_added) =                self.multibuffer.update(cx, |multibuffer, cx| {                    let was_empty = multibuffer.is_empty();                    let (_, is_excerpt_newly_added) = multibuffer.set_excerpts_for_path(                        path_key.clone(),                        buffer.clone(),                        diff_hunk_ranges,                        multibuffer_context_lines(cx),                        cx,                    );                    multibuffer.add_diff(diff_handle.clone(), cx);                    (was_empty, is_excerpt_newly_added)                });             self.editor.update(cx, |editor, cx| {                if was_empty {                    let first_hunk = editor                        .diff_hunks_in_ranges(                            &[editor::Anchor::min()..editor::Anchor::max()],                            &self.multibuffer.read(cx).read(cx),                        )                        .next();                     if let Some(first_hunk) = first_hunk {                        let first_hunk_start = first_hunk.multi_buffer_range().start;                        editor.change_selections(Default::default(), window, cx, |selections| {                            selections.select_anchor_ranges([first_hunk_start..first_hunk_start]);                        })                    }                }                 if is_excerpt_newly_added                    && buffer                        .read(cx)                        .file()                        .is_some_and(|file| file.disk_state().is_deleted())                {                    editor.fold_buffer(snapshot.text.remote_id(), cx)                }            });        }         self.multibuffer.update(cx, |multibuffer, cx| {            for path in paths_to_delete {                multibuffer.remove_excerpts_for_path(path, cx);            }        });         if self.multibuffer.read(cx).is_empty()            && self                .editor                .read(cx)                .focus_handle(cx)                .contains_focused(window, cx)        {            self.focus_handle.focus(window, cx);        } else if self.focus_handle.is_focused(window) && !self.multibuffer.read(cx).is_empty() {            self.editor.update(cx, |editor, cx| {                editor.focus_handle(cx).focus(window, cx);            });        }    }     fn update_title(&mut self, cx: &mut Context<Self>) {        let new_title = self.thread.read(cx).title();        if new_title != self.title {            self.title = new_title;            cx.emit(EditorEvent::TitleChanged);        }    }     fn handle_acp_thread_event(&mut self, event: &AcpThreadEvent, cx: &mut Context<Self>) {        if let AcpThreadEvent::TitleUpdated = event {            self.update_title(cx)        }    }     pub fn move_to_path(&self, path_key: PathKey, window: &mut Window, cx: &mut App) {        if let Some(position) = self.multibuffer.read(cx).location_for_path(&path_key, cx) {            self.editor.update(cx, |editor, cx| {                let first_hunk = editor                    .diff_hunks_in_ranges(                        &[position..editor::Anchor::max()],                        &self.multibuffer.read(cx).read(cx),                    )                    .next();                 if let Some(first_hunk) = first_hunk {                    let first_hunk_start = first_hunk.multi_buffer_range().start;                    editor.change_selections(Default::default(), window, cx, |selections| {                        selections.select_anchor_ranges([first_hunk_start..first_hunk_start]);                    })                }            });        }    }     fn keep(&mut self, _: &Keep, window: &mut Window, cx: &mut Context<Self>) {        self.editor.update(cx, |editor, cx| {            let snapshot = editor.buffer().read(cx).snapshot(cx);            keep_edits_in_selection(editor, &snapshot, &self.thread, window, cx);        });    }     fn reject(&mut self, _: &Reject, window: &mut Window, cx: &mut Context<Self>) {        self.editor.update(cx, |editor, cx| {            let snapshot = editor.buffer().read(cx).snapshot(cx);            reject_edits_in_selection(                editor,                &snapshot,                &self.thread,                self.workspace.clone(),                window,                cx,            );        });    }     fn reject_all(&mut self, _: &RejectAll, window: &mut Window, cx: &mut Context<Self>) {        self.editor.update(cx, |editor, cx| {            let snapshot = editor.buffer().read(cx).snapshot(cx);            reject_edits_in_ranges(                editor,                &snapshot,                &self.thread,                vec![editor::Anchor::min()..editor::Anchor::max()],                self.workspace.clone(),                window,                cx,            );        });    }     fn keep_all(&mut self, _: &KeepAll, _window: &mut Window, cx: &mut Context<Self>) {        let telemetry = ActionLogTelemetry::from(self.thread.read(cx));        let action_log = self.thread.read(cx).action_log().clone();        action_log.update(cx, |action_log, cx| {            action_log.keep_all_edits(Some(telemetry), cx)        });    }} fn keep_edits_in_selection(    editor: &mut Editor,    buffer_snapshot: &MultiBufferSnapshot,    thread: &Entity<AcpThread>,    window: &mut Window,    cx: &mut Context<Editor>,) {    let ranges = editor        .selections        .disjoint_anchor_ranges()        .collect::<Vec<_>>();     keep_edits_in_ranges(editor, buffer_snapshot, thread, ranges, window, cx)} fn reject_edits_in_selection(    editor: &mut Editor,    buffer_snapshot: &MultiBufferSnapshot,    thread: &Entity<AcpThread>,    workspace: WeakEntity<Workspace>,    window: &mut Window,    cx: &mut Context<Editor>,) {    let ranges = editor        .selections        .disjoint_anchor_ranges()        .collect::<Vec<_>>();    reject_edits_in_ranges(        editor,        buffer_snapshot,        thread,        ranges,        workspace,        window,        cx,    )} fn keep_edits_in_ranges(    editor: &mut Editor,    buffer_snapshot: &MultiBufferSnapshot,    thread: &Entity<AcpThread>,    ranges: Vec<Range<editor::Anchor>>,    window: &mut Window,    cx: &mut Context<Editor>,) {    let diff_hunks_in_ranges = editor        .diff_hunks_in_ranges(&ranges, buffer_snapshot)        .collect::<Vec<_>>();     update_editor_selection(editor, buffer_snapshot, &diff_hunks_in_ranges, window, cx);     let multibuffer = editor.buffer().clone();    for hunk in &diff_hunks_in_ranges {        let buffer = multibuffer.read(cx).buffer(hunk.buffer_id);        if let Some(buffer) = buffer {            let action_log = thread.read(cx).action_log().clone();            let telemetry = ActionLogTelemetry::from(thread.read(cx));            action_log.update(cx, |action_log, cx| {                action_log.keep_edits_in_range(                    buffer,                    hunk.buffer_range.clone(),                    Some(telemetry),                    cx,                )            });        }    }} fn reject_edits_in_ranges(    editor: &mut Editor,    buffer_snapshot: &MultiBufferSnapshot,    thread: &Entity<AcpThread>,    ranges: Vec<Range<editor::Anchor>>,    workspace: WeakEntity<Workspace>,    window: &mut Window,    cx: &mut Context<Editor>,) {    let diff_hunks_in_ranges = editor        .diff_hunks_in_ranges(&ranges, buffer_snapshot)        .collect::<Vec<_>>();     update_editor_selection(editor, buffer_snapshot, &diff_hunks_in_ranges, window, cx);     let multibuffer = editor.buffer().clone();     let mut ranges_by_buffer = HashMap::default();    for hunk in &diff_hunks_in_ranges {        let buffer = multibuffer.read(cx).buffer(hunk.buffer_id);        if let Some(buffer) = buffer {            ranges_by_buffer                .entry(buffer.clone())                .or_insert_with(Vec::new)                .push(hunk.buffer_range.clone());        }    }     let action_log = thread.read(cx).action_log().clone();    let telemetry = ActionLogTelemetry::from(thread.read(cx));    let mut undo_buffers = Vec::new();     for (buffer, ranges) in ranges_by_buffer {        action_log            .update(cx, |action_log, cx| {                let (task, undo_info) =                    action_log.reject_edits_in_ranges(buffer, ranges, Some(telemetry.clone()), cx);                undo_buffers.extend(undo_info);                task            })            .detach_and_log_err(cx);    }    if !undo_buffers.is_empty() {        action_log.update(cx, |action_log, _cx| {            action_log.set_last_reject_undo(LastRejectUndo {                buffers: undo_buffers,            });        });         if let Some(workspace) = workspace.upgrade() {            cx.defer(move |cx| {                workspace.update(cx, |workspace, cx| {                    crate::ui::show_undo_reject_toast(workspace, action_log, cx);                });            });        }    }} fn update_editor_selection(    editor: &mut Editor,    buffer_snapshot: &MultiBufferSnapshot,    diff_hunks: &[multi_buffer::MultiBufferDiffHunk],    window: &mut Window,    cx: &mut Context<Editor>,) {    let newest_cursor = editor        .selections        .newest::<Point>(&editor.display_snapshot(cx))        .head();     if !diff_hunks.iter().any(|hunk| {        hunk.row_range            .contains(&multi_buffer::MultiBufferRow(newest_cursor.row))    }) {        return;    }     let target_hunk = {        diff_hunks            .last()            .and_then(|last_kept_hunk| {                let last_kept_hunk_end = last_kept_hunk.multi_buffer_range().end;                editor                    .diff_hunks_in_ranges(                        &[last_kept_hunk_end..editor::Anchor::max()],                        buffer_snapshot,                    )                    .nth(1)            })            .or_else(|| {                let first_kept_hunk = diff_hunks.first()?;                let first_kept_hunk_start = first_kept_hunk.multi_buffer_range().start;                editor                    .diff_hunks_in_ranges(                        &[editor::Anchor::min()..first_kept_hunk_start],                        buffer_snapshot,                    )                    .next()            })    };     if let Some(target_hunk) = target_hunk {        editor.change_selections(Default::default(), window, cx, |selections| {            let next_hunk_start = target_hunk.multi_buffer_range().start;            selections.select_anchor_ranges([next_hunk_start..next_hunk_start]);        })    }} impl EventEmitter<EditorEvent> for AgentDiffPane {} impl Focusable for AgentDiffPane {    fn focus_handle(&self, cx: &App) -> FocusHandle {        if self.multibuffer.read(cx).is_empty() {            self.focus_handle.clone()        } else {            self.editor.focus_handle(cx)

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