use anyhow::anyhow;
use commit_modal::CommitModal;
use editor::{Editor, actions::DiffClipboardWithSelectionData};

use ui::{
    Color, Headline, HeadlineSize, Icon, IconName, IconSize, IntoElement, ParentElement, Render,
    Styled, StyledExt, div, h_flex, rems, v_flex,
};
use workspace::{Toast, notifications::NotificationId};

mod blame_ui;
pub mod clone;

use git::{
    repository::{Branch, CommitDetails, Upstream, UpstreamTracking, UpstreamTrackingStatus},
    status::{FileStatus, StatusCode, UnmergedStatus, UnmergedStatusCode},
};
use gpui::{
    App, ClipboardItem, Context, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable,
    SharedString, Subscription, Task, TaskExt, Window,
};
use menu::{Cancel, Confirm};
use project::git_store::Repository;
use project_diff::ProjectDiff;
use time::OffsetDateTime;
use ui::prelude::*;
use workspace::{ModalView, OpenMode, Workspace, notifications::DetachAndPromptErr};
use zed_actions;

use crate::{commit_view::CommitView, git_panel::GitPanel, text_diff_view::TextDiffView};

mod askpass_modal;
pub mod branch_picker;
mod commit_modal;
pub mod commit_tooltip;
pub mod commit_view;
mod conflict_view;
pub mod file_diff_view;
pub mod git_panel;
mod git_panel_settings;
pub mod git_picker;
mod git_runtime_diagnostics;
pub mod multi_diff_view;
pub mod picker_prompt;
pub mod project_diff;
pub(crate) mod remote_output;
pub mod repository_selector;
pub mod stash_picker;
pub mod text_diff_view;
pub mod worktree_names;
pub mod worktree_picker;
pub mod worktree_service;

pub use conflict_view::MergeConflictIndicator;

pub fn get_provider_icon(name: &str) -> IconName {
    match name {
        "Bitbucket" => IconName::Bitbucket,
        "Codeberg" => IconName::Codeberg,
        "Forgejo Self-Hosted" => IconName::Forgejo,
        "GitHub" => IconName::Github,
        "GitLab" => IconName::Gitlab,
        "Gitea" => IconName::Gitea,
        _ => IconName::Link,
    }
}

pub fn init(cx: &mut App) {
    editor::set_blame_renderer(blame_ui::GitBlameRenderer, cx);
    commit_view::init(cx);

    cx.observe_new(|editor: &mut Editor, _, cx| {
        conflict_view::register_editor(editor, editor.buffer().clone(), cx);
    })
    .detach();

    cx.observe_new(|workspace: &mut Workspace, _, cx| {
        ProjectDiff::register(workspace, cx);
        CommitModal::register(workspace);
        git_panel::register(workspace);
        repository_selector::register(workspace);
        git_picker::register(workspace);

        workspace.register_action(
            |workspace, action: &zed_actions::CreateWorktree, window, cx| {
                worktree_service::handle_create_worktree(workspace, action, window, None, cx);
            },
        );
        workspace.register_action(
            |workspace, action: &zed_actions::SwitchWorktree, window, cx| {
                worktree_service::handle_switch_worktree(workspace, action, window, None, cx);
            },
        );

        workspace.register_action(|workspace, _: &zed_actions::git::Worktree, window, cx| {
            let focused_dock = workspace.focused_dock_position(window, cx);
            let project = workspace.project().clone();
            let workspace_handle = workspace.weak_handle();
            workspace.toggle_modal(window, cx, |window, cx| {
                worktree_picker::WorktreePicker::new_modal(
                    project,
                    workspace_handle,
                    focused_dock,
                    window,
                    cx,
                )
            });
        });

        workspace.register_action(
            |workspace, action: &zed_actions::OpenWorktreeInNewWindow, window, cx| {
                let path = action.path.clone();
                let is_remote = !workspace.project().read(cx).is_local();

                if is_remote {
                    let connection_options =
                        workspace.project().read(cx).remote_connection_options(cx);
                    let app_state = workspace.app_state().clone();
                    let workspace_handle = workspace.weak_handle();
                    cx.spawn_in(window, async move |_, cx| {
                        if let Some(connection_options) = connection_options {
                            crate::worktree_picker::open_remote_worktree(
                                connection_options,
                                vec![path],
                                app_state,
                                workspace_handle,
                                cx,
                            )
                            .await?;
                        }
                        anyhow::Ok(())
                    })
                    .detach_and_log_err(cx);
                } else {
                    workspace
                        .open_workspace_for_paths(OpenMode::NewWindow, vec![path], window, cx)
                        .detach_and_log_err(cx);
                }
            },
        );

        let project = workspace.project().read(cx);
        if project.is_read_only(cx) {
            return;
        }
        if !project.is_via_collab() {
            workspace.register_action(
                |workspace, _: &zed_actions::git::CreatePullRequest, window, cx| {
                    if let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) {
                        panel.update(cx, |panel, cx| {
                            panel.create_pull_request(window, cx);
                        });
                    }
                },
            );
            workspace.register_action(|workspace, _: &git::Fetch, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.fetch(true, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::FetchFrom, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.fetch(false, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::Push, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.push(false, false, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::PushTo, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.push(false, true, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::ForcePush, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.push(true, false, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::Pull, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.pull(false, window, cx);
                });
            });
            workspace.register_action(|workspace, _: &git::PullRebase, window, cx| {
                let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                    return;
                };
                panel.update(cx, |panel, cx| {
                    panel.pull(true, window, cx);
                });
            });
        }
        workspace.register_action(|workspace, action: &git::StashAll, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.stash_all(action, window, cx);
            });
        });
        workspace.register_action(|workspace, action: &git::StashPop, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.stash_pop(action, window, cx);
            });
        });
        workspace.register_action(|workspace, action: &git::StashApply, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.stash_apply(action, window, cx);
            });
        });
        workspace.register_action(|workspace, action: &git::StageAll, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.stage_all(action, window, cx);
            });
        });
        workspace.register_action(|workspace, action: &git::UnstageAll, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.unstage_all(action, window, cx);
            });
        });
        workspace.register_action(|workspace, _: &git::Uncommit, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.uncommit(window, cx);
            })
        });
        workspace.register_action(|workspace, _action: &git::Init, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };
            panel.update(cx, |panel, cx| {
                panel.git_init(window, cx);
            });
        });
        workspace.register_action(|workspace, _action: &git::Clone, window, cx| {
            let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
                return;
            };

            workspace.toggle_modal(window, cx, |window, cx| {
                GitCloneModal::show(panel, window, cx)
            });
        });
        workspace.register_action(|workspace, _: &git::OpenModifiedFiles, window, cx| {
            open_modified_files(workspace, window, cx);
        });
        workspace.register_action(|workspace, _: &git::RenameBranch, window, cx| {
            rename_current_branch(workspace, window, cx);
        });
        workspace.register_action(|workspace, _: &git::CopyBranchName, _, cx| {
            copy_branch_name(workspace, cx);
        });
        workspace.register_action(show_ref_picker);
        workspace.register_action(
            |workspace, action: &DiffClipboardWithSelectionData, window, cx| {
                if let Some(task) = TextDiffView::open(action, workspace, window, cx) {
                    task.detach();
                };
            },
        );
    })
    .detach();
}

fn open_modified_files(
    workspace: &mut Workspace,
    window: &mut Window,
    cx: &mut Context<Workspace>,
) {
    let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
        return;
    };
    let modified_paths: Vec<_> = panel.update(cx, |panel, cx| {
        let Some(repo) = panel.active_repository.as_ref() else {
            return Vec::new();
        };
        let repo = repo.read(cx);
        repo.cached_status()
            .filter_map(|entry| {
                if entry.status.is_modified() {
                    repo.repo_path_to_project_path(&entry.repo_path, cx)
                } else {
                    None
                }
            })
            .collect()
    });
    for path in modified_paths {
        workspace.open_path(path, None, true, window, cx).detach();
    }
}

pub fn git_status_icon(status: FileStatus) -> impl IntoElement {
    GitStatusIcon::new(status)
}

struct RenameBranchModal {
    current_branch: SharedString,
    editor: Entity<Editor>,
    repo: Entity<Repository>,
}

impl RenameBranchModal {
    fn new(
        current_branch: String,
        repo: Entity<Repository>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
        let editor = cx.new(|cx| {
            let mut editor = Editor::single_line(window, cx);
            editor.set_text(current_branch.clone(), window, cx);
            editor
        });
        Self {
            current_branch: current_branch.into(),
            editor,
            repo,
        }
    }

    fn cancel(&mut self, _: &Cancel, _window: &mut Window, cx: &mut Context<Self>) {
        cx.emit(DismissEvent);
    }

    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
        let new_name = self.editor.read(cx).text(cx);
        if new_name.is_empty() || new_name == self.current_branch.as_ref() {
            cx.emit(DismissEvent);
            return;
        }

        let repo = self.repo.clone();
        let current_branch = self.current_branch.to_string();
        cx.spawn(async move |_, cx| {
            match repo
                .update(cx, |repo, _| {
                    repo.rename_branch(current_branch, new_name.clone())
                })
                .await
            {
                Ok(Ok(_)) => Ok(()),
                Ok(Err(error)) => Err(error),
                Err(_) => Err(anyhow!("Operation was canceled")),
            }
        })
        .detach_and_prompt_err("Failed to rename branch", window, cx, |_, _, _| None);
        cx.emit(DismissEvent);
    }
}

impl EventEmitter<DismissEvent> for RenameBranchModal {}
impl ModalView for RenameBranchModal {}
impl Focusable for RenameBranchModal {
    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.editor.focus_handle(cx)
    }
}

impl Render for RenameBranchModal {
    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        v_flex()
            .key_context("RenameBranchModal")
            .on_action(cx.listener(Self::cancel))
            .on_action(cx.listener(Self::confirm))
            .elevation_2(cx)
            .w(rems(34.))
            .child(
                h_flex()
                    .px_3()
                    .pt_2()
                    .pb_1()
                    .w_full()
                    .gap_1p5()
                    .child(Icon::new(IconName::GitBranch).size(IconSize::XSmall))
                    .child(
                        Headline::new(format!("Rename Branch ({})", self.current_branch))
                            .size(HeadlineSize::XSmall),
                    ),
            )
            .child(div().px_3().pb_3().w_full().child(self.editor.clone()))
    }
}

fn rename_current_branch(
    workspace: &mut Workspace,
    window: &mut Window,
    cx: &mut Context<Workspace>,
) {
    let Some(panel) = workspace.panel::<git_panel::GitPanel>(cx) else {
        return;
    };
    let current_branch: Option<String> = panel.update(cx, |panel, cx| {
        let repo = panel.active_repository.as_ref()?;
        let repo = repo.read(cx);
        repo.branch.as_ref().map(|branch| branch.name().to_string())
    });

    let Some(current_branch_name) = current_branch else {
        return;
    };

    let repo = panel.read(cx).active_repository.clone();
    let Some(repo) = repo else {
        return;
    };

    workspace.toggle_modal(window, cx, |window, cx| {
        RenameBranchModal::new(current_branch_name, repo, window, cx)
    });
}

fn copy_branch_name(workspace: &mut Workspace, cx: &mut Context<Workspace>) {
    let Some(panel) = workspace.panel::<GitPanel>(cx) else {
        return;
    };
    let branch_name = panel.update(cx, |panel, cx| {
        let repo = panel.active_repository.as_ref()?;
        let repo = repo.read(cx);
        repo.branch.as_ref().map(|branch| branch.name().to_string())
    });
    if let Some(name) = branch_name {
        cx.write_to_clipboard(ClipboardItem::new_string(name));
    }
}

struct RefPickerModal {
    editor: Entity<Editor>,
    repo: Entity<Repository>,
    workspace: Entity<Workspace>,
    commit_details: Option<CommitDetails>,
    lookup_task: Option<Task<()>>,
    _editor_subscription: Subscription,
}

impl RefPickerModal {
    fn new(
        repo: Entity<Repository>,
        workspace: Entity<Workspace>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
        let editor = cx.new(|cx| {
            let mut editor = Editor::single_line(window, cx);
            editor.set_placeholder_text("Enter git ref...", window, cx);
            editor
        });

        let _editor_subscription = cx.subscribe_in(
            &editor,
            window,
            |this, _editor, event: &editor::EditorEvent, window, cx| {
                if let editor::EditorEvent::BufferEdited = event {
                    this.lookup_commit_details(window, cx);
                }
            },
        );

        Self {
            editor,
            repo,
            workspace,
            commit_details: None,
            lookup_task: None,
            _editor_subscription,
        }
    }

    fn lookup_commit_details(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let git_ref = self.editor.read(cx).text(cx);
        let git_ref = git_ref.trim().to_string();

        if git_ref.is_empty() {
            self.commit_details = None;
            cx.notify();
            return;
        }

        let repo = self.repo.clone();
        self.lookup_task = Some(cx.spawn_in(window, async move |this, cx| {
            cx.background_executor()
                .timer(std::time::Duration::from_millis(300))
                .await;

            let show_result = repo
                .update(cx, |repo, _| repo.show(git_ref.clone()))
                .await
                .ok();

            if let Some(show_future) = show_result {
                if let Ok(details) = show_future {
                    this.update(cx, |this, cx| {
                        this.commit_details = Some(details);
                        cx.notify();
                    })
                    .ok();
                } else {
                    this.update(cx, |this, cx| {
                        this.commit_details = None;
                        cx.notify();
                    })
                    .ok();
                }
            }
        }));
    }

    fn cancel(&mut self, _: &Cancel, _window: &mut Window, cx: &mut Context<Self>) {
        cx.emit(DismissEvent);
    }

    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
        let git_ref = self.editor.read(cx).text(cx);
        let git_ref = git_ref.trim();

        if git_ref.is_empty() {
            cx.emit(DismissEvent);
            return;
        }

        let git_ref_string = git_ref.to_string();

        let repo = self.repo.clone();
        let workspace = self.workspace.clone();

        window
            .spawn(cx, async move |cx| -> anyhow::Result<()> {
                let show_future = repo.update(cx, |repo, _| repo.show(git_ref_string.clone()));
                let show_result = show_future.await;

                match show_result {
                    Ok(Ok(details)) => {
                        workspace.update_in(cx, |workspace, window, cx| {
                            CommitView::open(
                                details.sha.to_string(),
                                repo.downgrade(),
                                workspace.weak_handle(),
                                None,
                                None,
                                window,
                                cx,
                            );
                        })?;
                    }
                    Ok(Err(_)) | Err(_) => {
                        workspace.update(cx, |workspace, cx| {
                            let error = anyhow::anyhow!("View commit failed");
                            Self::show_git_error_toast(&git_ref_string, error, workspace, cx);
                        });
                    }
                }

                Ok(())
            })
            .detach();
        cx.emit(DismissEvent);
    }

    fn show_git_error_toast(
        _git_ref: &str,
        error: anyhow::Error,
        workspace: &mut Workspace,
        cx: &mut Context<Workspace>,
    ) {
        let toast = Toast::new(NotificationId::unique::<()>(), error.to_string());
        workspace.show_toast(toast, cx);
    }
}

impl EventEmitter<DismissEvent> for RefPickerModal {}
impl ModalView for RefPickerModal {}
impl Focusable for RefPickerModal {
    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.editor.focus_handle(cx)
    }
}

impl Render for RefPickerModal {
    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let has_commit_details = self.commit_details.is_some();
        let commit_preview = self.commit_details.as_ref().map(|details| {
            let commit_time = OffsetDateTime::from_unix_timestamp(details.commit_timestamp)
                .unwrap_or_else(|_| OffsetDateTime::now_utc());
            let local_offset =
                time::UtcOffset::current_local_offset().unwrap_or(time::UtcOffset::UTC);
            let formatted_time = time_format::format_localized_timestamp(
                commit_time,
                OffsetDateTime::now_utc(),
                local_offset,
                time_format::TimestampFormat::Relative,
            );

            let subject = details.message.lines().next().unwrap_or("").to_string();
            let author_and_subject = format!("{} • {}", details.author_name, subject);

            h_flex()
                .w_full()
                .gap_6()
                .justify_between()
                .overflow_x_hidden()
                .child(
                    div().max_w_96().child(
                        Label::new(author_and_subject)
                            .size(LabelSize::Small)
                            .truncate()
                            .color(Color::Muted),
                    ),
                )
                .child(
                    Label::new(formatted_time)
                        .size(LabelSize::Small)
                        .color(Color::Muted),
                )
        });

        v_flex()
            .key_context("RefPickerModal")
            .on_action(cx.listener(Self::cancel))
            .on_action(cx.listener(Self::confirm))
            .elevation_2(cx)
            .w(rems(34.))
            .child(
                h_flex()
                    .px_3()
                    .pt_2()
                    .pb_1()
                    .w_full()
                    .gap_1p5()
                    .child(Icon::new(IconName::Hash).size(IconSize::XSmall))
                    .child(Headline::new("View Commit").size(HeadlineSize::XSmall)),
            )
            .child(div().px_3().w_full().child(self.editor.clone()))
            .when_some(commit_preview, |el, preview| {
                el.child(div().px_3().pb_3().w_full().child(preview))
            })
            .when(!has_commit_details, |el| el.child(div().pb_3()))
    }
}

fn show_ref_picker(
    workspace: &mut Workspace,
    _: &git::ViewCommit,
    window: &mut Window,
    cx: &mut Context<Workspace>,
) {
    let Some(repo) = workspace.project().read(cx).active_repository(cx) else {
        return;
    };

    let workspace_entity = cx.entity();
    workspace.toggle_modal(window, cx, |window, cx| {
        RefPickerModal::new(repo, workspace_entity, window, cx)
    });
}

fn render_remote_button(
    id: impl Into<SharedString>,
    branch: &Branch,
    keybinding_target: Option<FocusHandle>,
    show_fetch_button: bool,
) -> Option<impl IntoElement> {
    let id = id.into();
    let upstream = branch.upstream.as_ref();
    match upstream {
        Some(Upstream {
            tracking: UpstreamTracking::Tracked(UpstreamTrackingStatus { ahead, behind }),
            ..
        }) => match (*ahead, *behind) {
            (0, 0) if show_fetch_button => {
                Some(remote_button::render_fetch_button(keybinding_target, id))
            }
            (0, 0) => None,
            (ahead, 0) => Some(remote_button::render_push_button(
                keybinding_target,
                id,
                ahead,
            )),
            (ahead, behind) => Some(remote_button::render_pull_button(
                keybinding_target,
                id,
                ahead,
                behind,
            )),
        },
        Some(Upstream {
            tracking: UpstreamTracking::Gone,
            ..
        }) => Some(remote_button::render_republish_button(
            keybinding_target,
            id,
        )),
        None => Some(remote_button::render_publish_button(keybinding_target, id)),
    }
}

mod remote_button {
    use gpui::{Action, Anchor, AnyView, ClickEvent, FocusHandle};
    use ui::{
        App, ButtonCommon, Clickable, ContextMenu, ElementId, FluentBuilder, Icon, IconName,
        IconSize, IntoElement, Label, LabelCommon, LabelSize, LineHeightStyle, ParentElement,
        PopoverMenu, SharedString, SplitButton, Styled, Tooltip, Window, div, h_flex, rems,
    };

    pub fn render_fetch_button(
        keybinding_target: Option<FocusHandle>,
        id: SharedString,
    ) -> SplitButton {
        split_button(
            id,
            "Fetch",
            0,
            0,
            Some(IconName::ArrowCircle),
            keybinding_target.clone(),
            move |_, window, cx| {
                window.dispatch_action(Box::new(git::Fetch), cx);
            },
            move |_window, cx| {
                git_action_tooltip(
                    "Fetch updates from remote",
                    &git::Fetch,
                    "git fetch",
                    keybinding_target.clone(),
                    cx,
                )
            },
        )
    }

    pub fn render_push_button(
        keybinding_target: Option<FocusHandle>,
        id: SharedString,
        ahead: u32,
    ) -> SplitButton {
        split_button(
            id,
            "Push",
            ahead as usize,
            0,
            None,
            keybinding_target.clone(),
            move |_, window, cx| {
                window.dispatch_action(Box::new(git::Push), cx);
            },
            move |_window, cx| {
                git_action_tooltip(
                    "Push committed changes to remote",
                    &git::Push,
                    "git push",
                    keybinding_target.clone(),
                    cx,
                )
            },
        )
    }

    pub fn render_pull_button(
        keybinding_target: Option<FocusHandle>,
        id: SharedString,
        ahead: u32,
        behind: u32,
    ) -> SplitButton {
        split_button(
            id,
            "Pull",
            ahead as usize,
            behind as usize,
            None,
            keybinding_target.clone(),
            move |_, window, cx| {
                window.dispatch_action(Box::new(git::Pull), cx);
            },
            move |_window, cx| {
                git_action_tooltip(
                    "Pull",
                    &git::Pull,
                    "git pull",
                    keybinding_target.clone(),
                    cx,
                )
            },
        )
    }

    pub fn render_publish_button(
        keybinding_target: Option<FocusHandle>,
        id: SharedString,
    ) -> SplitButton {
        split_button(
            id,
            "Publish",
            0,
            0,
            Some(IconName::ExpandUp),
            keybinding_target.clone(),
            move |_, window, cx| {
                window.dispatch_action(Box::new(git::Push), cx);
            },
            move |_window, cx| {
                git_action_tooltip(
                    "Publish branch to remote",
                    &git::Push,
                    "git push --set-upstream",
                    keybinding_target.clone(),
                    cx,
                )
            },
        )
    }

    pub fn render_republish_button(
        keybinding_target: Option<FocusHandle>,
        id: SharedString,
    ) -> SplitButton {
        split_button(
            id,
            "Republish",
            0,
            0,
            Some(IconName::ExpandUp),
            keybinding_target.clone(),
            move |_, window, cx| {
                window.dispatch_action(Box::new(git::Push), cx);
            },
            move |_window, cx| {
                git_action_tooltip(
                    "Re-publish branch to remote",
                    &git::Push,
                    "git push --set-upstream",
                    keybinding_target.clone(),
                    cx,
                )
            },
        )
    }

    fn git_action_tooltip(
        label: impl Into<SharedString>,
        action: &dyn Action,
        command: impl Into<SharedString>,
        focus_handle: Option<FocusHandle>,
        cx: &mut App,
    ) -> AnyView {
        let label = label.into();
        let command = command.into();

        if let Some(handle) = focus_handle {
            Tooltip::with_meta_in(label, Some(action), command, &handle, cx)
        } else {
            Tooltip::with_meta(label, Some(action), command, cx)
        }
    }

    fn render_git_action_menu(
        id: impl Into<ElementId>,
        keybinding_target: Option<FocusHandle>,
    ) -> impl IntoElement {
        PopoverMenu::new(id.into())
            .trigger(
                ui::ButtonLike::new_rounded_right("split-button-right")
                    .layer(ui::ElevationIndex::ModalSurface)
                    .size(ui::ButtonSize::None)
                    .child(
                        div()
                            .px_1()
                            .child(Icon::new(IconName::ChevronDown).size(IconSize::XSmall)),
                    ),
            )
            .menu(move |window, cx| {
                Some(ContextMenu::build(window, cx, |context_menu, _, _| {
                    context_menu
                        .when_some(keybinding_target.clone(), |el, keybinding_target| {
                            el.context(keybinding_target)
                        })
                        .action("Fetch", git::Fetch.boxed_clone())
                        .action("Fetch From", git::FetchFrom.boxed_clone())
                        .action("Pull", git::Pull.boxed_clone())
                        .action("Pull (Rebase)", git::PullRebase.boxed_clone())
                        .separator()
                        .action("Push", git::Push.boxed_clone())
                        .action("Push To", git::PushTo.boxed_clone())
                        .action("Force Push", git::ForcePush.boxed_clone())
                }))
            })
            .anchor(Anchor::TopRight)
    }

    #[allow(clippy::too_many_arguments)]
    fn split_button(
        id: SharedString,
        left_label: impl Into<SharedString>,
        ahead_count: usize,
        behind_count: usize,
        left_icon: Option<IconName>,
        keybinding_target: Option<FocusHandle>,
        left_on_click: impl Fn(&ClickEvent, &mut Window, &mut App) + 'static,
        tooltip: impl Fn(&mut Window, &mut App) -> AnyView + 'static,
    ) -> SplitButton {
        fn count(count: usize) -> impl IntoElement {
            h_flex()
                .ml_neg_px()
                .h(rems(0.875))
                .items_center()
                .overflow_hidden()
                .px_0p5()
                .child(
                    Label::new(count.to_string())
                        .size(LabelSize::XSmall)
                        .line_height_style(LineHeightStyle::UiLabel),
                )
        }

        let should_render_counts = left_icon.is_none() && (ahead_count > 0 || behind_count > 0);

        let left = ui::ButtonLike::new_rounded_left(ElementId::Name(
            format!("split-button-left-{}", id).into(),
        ))
        .layer(ui::ElevationIndex::ModalSurface)
        .size(ui::ButtonSize::Compact)
        .when(should_render_counts, |this| {
            this.child(
                h_flex()
                    .ml_neg_0p5()
                    .when(behind_count > 0, |this| {
                        this.child(Icon::new(IconName::ArrowDown).size(IconSize::XSmall))
                            .child(count(behind_count))
                    })
                    .when(ahead_count > 0, |this| {
                        this.child(Icon::new(IconName::ArrowUp).size(IconSize::XSmall))
                            .child(count(ahead_count))
                    }),
            )
        })
        .when_some(left_icon, |this, left_icon| {
            this.child(
                h_flex()
                    .ml_neg_0p5()
                    .child(Icon::new(left_icon).size(IconSize::XSmall)),
            )
        })
        .child(
            div()
                .child(Label::new(left_label).size(LabelSize::Small))
                .mr_0p5(),
        )
        .on_click(left_on_click)
        .tooltip(tooltip);

        let right = render_git_action_menu(
            ElementId::Name(format!("split-button-right-{}", id).into()),
            keybinding_target,
        )
        .into_any_element();

        SplitButton::new(left, right)
    }
}

/// A visual representation of a file's Git status.
#[derive(IntoElement, RegisterComponent)]
pub struct GitStatusIcon {
    status: FileStatus,
}

impl GitStatusIcon {
    pub fn new(status: FileStatus) -> Self {
        Self { status }
    }
}

impl RenderOnce for GitStatusIcon {
    fn render(self, _window: &mut ui::Window, cx: &mut App) -> impl IntoElement {
        let status = self.status;

        let (icon_name, color) = if status.is_conflicted() {
            (
                IconName::Warning,
                cx.theme().colors().version_control_conflict,
            )
        } else if status.is_deleted() {
            (
                IconName::SquareMinus,
                cx.theme().colors().version_control_deleted,
            )
        } else if status.is_modified() {
            (
                IconName::SquareDot,
                cx.theme().colors().version_control_modified,
            )
        } else {
            (
                IconName::SquarePlus,
                cx.theme().colors().version_control_added,
            )
        };

        Icon::new(icon_name).color(Color::Custom(color))
    }
}

// View this component preview using `workspace: open component-preview`
impl Component for GitStatusIcon {
    fn scope() -> ComponentScope {
        ComponentScope::VersionControl
    }

    fn preview(_window: &mut Window, _cx: &mut App) -> Option<AnyElement> {
        fn tracked_file_status(code: StatusCode) -> FileStatus {
            FileStatus::Tracked(git::status::TrackedStatus {
                index_status: code,
                worktree_status: code,
            })
        }

        let modified = tracked_file_status(StatusCode::Modified);
        let added = tracked_file_status(StatusCode::Added);
        let deleted = tracked_file_status(StatusCode::Deleted);
        let conflict = UnmergedStatus {
            first_head: UnmergedStatusCode::Updated,
            second_head: UnmergedStatusCode::Updated,
        }
        .into();

        Some(
            v_flex()
                .gap_6()
                .children(vec![example_group(vec![
                    single_example("Modified", GitStatusIcon::new(modified).into_any_element()),
                    single_example("Added", GitStatusIcon::new(added).into_any_element()),
                    single_example("Deleted", GitStatusIcon::new(deleted).into_any_element()),
                    single_example(
                        "Conflicted",
                        GitStatusIcon::new(conflict).into_any_element(),
                    ),
                ])])
                .into_any_element(),
        )
    }
}

struct GitCloneModal {
    panel: Entity<GitPanel>,
    repo_input: Entity<Editor>,
    focus_handle: FocusHandle,
}

impl GitCloneModal {
    pub fn show(panel: Entity<GitPanel>, window: &mut Window, cx: &mut Context<Self>) -> Self {
        let repo_input = cx.new(|cx| {
            let mut editor = Editor::single_line(window, cx);
            editor.set_placeholder_text("Enter repository URL…", window, cx);
            editor
        });
        let focus_handle = repo_input.focus_handle(cx);

        window.focus(&focus_handle, cx);

        Self {
            panel,
            repo_input,
            focus_handle,
        }
    }
}

impl Focusable for GitCloneModal {
    fn focus_handle(&self, _: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
}

impl Render for GitCloneModal {
    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        div()
            .elevation_3(cx)
            .w(rems(34.))
            .flex_1()
            .overflow_hidden()
            .child(
                div()
                    .w_full()
                    .p_2()
                    .border_b_1()
                    .border_color(cx.theme().colors().border_variant)
                    .child(self.repo_input.clone()),
            )
            .child(
                h_flex()
                    .w_full()
                    .p_2()
                    .gap_0p5()
                    .rounded_b_sm()
                    .bg(cx.theme().colors().editor_background)
                    .child(
                        Label::new("Clone a repository from GitHub or other sources.")
                            .color(Color::Muted)
                            .size(LabelSize::Small),
                    )
                    .child(
                        Button::new("learn-more", "Learn More")
                            .label_size(LabelSize::Small)
                            .end_icon(Icon::new(IconName::ArrowUpRight).size(IconSize::XSmall))
                            .on_click(|_, _, cx| {
                                cx.open_url("https://github.com/git-guides/git-clone");
                            }),
                    ),
            )
            .on_action(cx.listener(|_, _: &menu::Cancel, _, cx| {
                cx.emit(DismissEvent);
            }))
            .on_action(cx.listener(|this, _: &menu::Confirm, window, cx| {
                let repo = this.repo_input.read(cx).text(cx);
                this.panel.update(cx, |panel, cx| {
                    panel.git_clone(repo, window, cx);
                });
                cx.emit(DismissEvent);
            }))
    }
}

impl EventEmitter<DismissEvent> for GitCloneModal {}

impl ModalView for GitCloneModal {}

#[cfg(test)]
mod view_commit_tests {
    use super::*;
    use gpui::{TestAppContext, VisualTestContext, WindowHandle};
    use language::language_settings::AllLanguageSettings;
    use project::project_settings::ProjectSettings;
    use project::{FakeFs, Project, WorktreeSettings};
    use serde_json::json;
    use settings::{Settings as _, SettingsStore};
    use std::path::Path;
    use std::sync::Arc;
    use theme::LoadThemes;
    use util::path;
    use workspace::WorkspaceSettings;

    fn init_test(cx: &mut TestAppContext) {
        zlog::init_test();
        cx.update(|cx| {
            let settings_store = SettingsStore::test(cx);
            cx.set_global(settings_store);
            theme_settings::init(LoadThemes::JustBase, cx);
            AllLanguageSettings::register(cx);
            editor::init(cx);
            ProjectSettings::register(cx);
            WorktreeSettings::register(cx);
            WorkspaceSettings::register(cx);
        });
    }

    async fn setup_git_repo(cx: &mut TestAppContext) -> Arc<FakeFs> {
        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            "/root",
            json!({
                "project": {
                    ".git": {},
                    "src": {
                        "main.rs": "fn main() {}"
                    }
                }
            }),
        )
        .await;
        fs
    }

    async fn create_test_workspace(
        fs: Arc<FakeFs>,
        cx: &mut TestAppContext,
    ) -> (Entity<Project>, WindowHandle<Workspace>) {
        let project = Project::test(fs.clone(), [Path::new(path!("/root/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;
        (project, workspace)
    }

    #[gpui::test]
    async fn test_show_ref_picker_with_repository(cx: &mut TestAppContext) {
        init_test(cx);
        let fs = setup_git_repo(cx).await;

        fs.set_status_for_repo(
            Path::new("/root/project/.git"),
            &[("src/main.rs", git::status::StatusCode::Modified.worktree())],
        );

        let (_project, workspace) = create_test_workspace(fs, cx).await;
        let cx = &mut VisualTestContext::from_window(*workspace, cx);

        let initial_modal_state = workspace
            .read_with(cx, |workspace, cx| {
                workspace.active_modal::<RefPickerModal>(cx).is_some()
            })
            .unwrap_or(false);

        let _ = workspace.update(cx, |workspace, window, cx| {
            show_ref_picker(workspace, &git::ViewCommit, window, cx);
        });

        let final_modal_state = workspace
            .read_with(cx, |workspace, cx| {
                workspace.active_modal::<RefPickerModal>(cx).is_some()
            })
            .unwrap_or(false);

        assert!(!initial_modal_state);
        assert!(final_modal_state);
    }
}
