// Dockfönstren: ett layer-shell-fönster per skärm. Bygger ikonraden av
// pins + körande fönstergrupper, kopplar klick/skroll/menyer och sköter
// autohide (alltid-göm eller dodge via Wayfire-IPC-geometri).

use std::cell::{Cell, RefCell};
use std::collections::HashSet;
use std::path::PathBuf;
use std::rc::Rc;
use std::time::Duration;

use gtk4 as gtk;
use gtk4::gdk;
use gtk4::glib;
use gtk4::prelude::*;
use gtk4_layer_shell::{Edge, KeyboardMode, Layer, LayerShell};
use log::{debug, info};

use crate::config::{
    Alignment, AutohideMode, ClickAction, Config, GroupPopup, Layer as CfgLayer,
    MiddleClick, Position, ScrollAction, SharedConfig,
};
use crate::icons::{self, AppMeta};
use crate::menu;
use crate::toplevel::{ToplevelInfo, ToplevelService};
use crate::wayfire_ipc;

/// Allt delat som dockarna behöver nå.
pub struct Ctx {
    pub cfg: SharedConfig,
    pub cfg_path: PathBuf,
    pub service: RefCell<Option<Rc<ToplevelService>>>,
    pub docks: RefCell<Vec<Rc<Dock>>>,
    /// målet för den öppna kontextmenyn (menu.rs läser)
    pub menu_target: RefCell<Option<menu::MenuTarget>>,
    pub app: gtk::Application,
    /// körs när configen ändrats (sätts av main; applicerar CSS/rebuild)
    pub on_config_changed: RefCell<Option<Rc<dyn Fn()>>>,
    /// generationsräknare för settings-GUI:ts debouncade sparningar
    pub save_generation: Cell<u64>,
    /// app-nycklar vars fönster kräver uppmärksamhet (via Wayfire-events)
    pub urgent: RefCell<HashSet<String>>,
    /// hot corner/edge-fönster (hotspots.rs äger innehållet)
    pub hotspot_windows: RefCell<Vec<gtk::ApplicationWindow>>,
}

pub struct Dock {
    pub window: gtk::ApplicationWindow,
    pub items_box: gtk::Box,
    pub revealer: gtk::Revealer,
    pub connector: String,
    /// pekaren är över dockan just nu
    pub hover: Cell<bool>,
    /// dockan är undan-gömd av autohide
    pub hidden: Cell<bool>,
    /// något fönster överlappar dockans kantzon (dodge)
    pub dodge_overlap: Cell<bool>,
    /// generationsräknare för fördröjd göm-timer
    hide_generation: Cell<u64>,
    /// sensorremsan som väcker dockan när den är gömd
    sensor: RefCell<Option<gtk::ApplicationWindow>>,
}

/// En ikon i docken: en pin och/eller en grupp körande fönster.
pub struct Item {
    pub meta: AppMeta,
    pub windows: Vec<ToplevelInfo>,
    pub pinned: bool,
}

fn orientation(pos: &Position) -> gtk::Orientation {
    match pos {
        Position::Left | Position::Right => gtk::Orientation::Vertical,
        _ => gtk::Orientation::Horizontal,
    }
}

fn main_edge(pos: &Position) -> Edge {
    match pos {
        Position::Bottom => Edge::Bottom,
        Position::Top => Edge::Top,
        Position::Left => Edge::Left,
        Position::Right => Edge::Right,
    }
}

fn side_edges(pos: &Position) -> (Edge, Edge) {
    match pos {
        Position::Bottom | Position::Top => (Edge::Left, Edge::Right),
        _ => (Edge::Top, Edge::Bottom),
    }
}

fn configure_layer(win: &gtk::ApplicationWindow, cfg: &Config, monitor: &gdk::Monitor) {
    win.init_layer_shell();
    win.set_namespace(Some("waydock"));
    win.set_monitor(Some(monitor));
    win.set_layer(match cfg.layer {
        CfgLayer::Top => Layer::Top,
        CfgLayer::Overlay => Layer::Overlay,
        CfgLayer::Bottom => Layer::Bottom,
    });
    win.set_keyboard_mode(KeyboardMode::None);

    let edge = main_edge(&cfg.position);
    let (side_start, side_end) = side_edges(&cfg.position);
    win.set_anchor(edge, true);
    win.set_margin(edge, cfg.margin);
    if cfg.expand {
        // täck hela kanten; start/slut-marginalerna drar in baren
        win.set_anchor(side_start, true);
        win.set_anchor(side_end, true);
        win.set_margin(side_start, cfg.margin_start);
        win.set_margin(side_end, cfg.margin_end);
    } else {
        // ö: förankra bara i vald ände (ingen sidoförankring = centrerad)
        match cfg.alignment {
            Alignment::Center => {}
            Alignment::Start => {
                win.set_anchor(side_start, true);
                win.set_margin(side_start, cfg.margin_start);
            }
            Alignment::End => {
                win.set_anchor(side_end, true);
                win.set_margin(side_end, cfg.margin_end);
            }
        }
    }
    if cfg.avoid_windows && !cfg.autohide.enabled {
        win.auto_exclusive_zone_enable();
    } else {
        win.set_exclusive_zone(0);
    }
}

/// Bygg om alla dockfönster från grunden (vid start, configbyte, skärmbyte).
pub fn rebuild_all(ctx: &Rc<Ctx>) {
    for dock in ctx.docks.borrow_mut().drain(..) {
        if let Some(sensor) = dock.sensor.borrow_mut().take() {
            sensor.destroy();
        }
        dock.window.destroy();
    }

    let display = gdk::Display::default().expect("ingen display");
    let monitors = display.monitors();
    let mut docks = Vec::new();
    for i in 0..monitors.n_items() {
        let Some(monitor) = monitors.item(i).and_then(|o| o.downcast::<gdk::Monitor>().ok())
        else {
            continue;
        };
        let connector = monitor
            .connector()
            .map(|c| c.to_string())
            .unwrap_or_else(|| format!("monitor-{i}"));
        if !ctx.cfg.borrow().output_enabled(&connector) {
            debug!("skärm {connector} avstängd i configen");
            continue;
        }
        docks.push(build_dock(ctx, &monitor, connector));
    }
    *ctx.docks.borrow_mut() = docks;
    refresh_items(ctx);
    recompute_dodge(ctx);
    update_autohide(ctx);
}

fn build_dock(ctx: &Rc<Ctx>, monitor: &gdk::Monitor, connector: String) -> Rc<Dock> {
    let cfg = ctx.cfg.borrow().for_output(&connector);
    let win = gtk::ApplicationWindow::new(&ctx.app);
    win.add_css_class("waydock");
    win.add_css_class(&crate::style::output_class(&connector));

    let orient = orientation(&cfg.position);
    let panel = gtk::Box::new(orient, 0);
    panel.add_css_class("dock-panel");
    let items_align = match cfg.alignment {
        Alignment::Center => gtk::Align::Center,
        Alignment::Start => gtk::Align::Start,
        Alignment::End => gtk::Align::End,
    };
    let items_box = gtk::Box::new(orient, 0);
    if cfg.expand {
        // panelbakgrunden täcker kanten; ikonerna läggs enligt alignment
        panel.set_halign(gtk::Align::Fill);
        panel.set_valign(gtk::Align::Fill);
        if orient == gtk::Orientation::Horizontal {
            panel.set_hexpand(true);
            items_box.set_hexpand(true);
            items_box.set_halign(items_align);
        } else {
            panel.set_vexpand(true);
            items_box.set_vexpand(true);
            items_box.set_valign(items_align);
        }
    } else {
        panel.set_halign(gtk::Align::Center);
        panel.set_valign(gtk::Align::Center);
    }
    panel.append(&items_box);

    // yttre marginal = plats för skuggan att rita — men INTE på sidor som
    // är förankrade mot skärmkanten, så att margin = 0 verkligen når kanten
    let outer = gtk::Box::new(orient, 0);
    let pad = if cfg.appearance.shadow.enabled {
        cfg.appearance.shadow.blur as i32
    } else {
        0
    };
    let anchored_start = cfg.expand || cfg.alignment == Alignment::Start;
    let anchored_end = cfg.expand || cfg.alignment == Alignment::End;
    let (top, bottom, start, end) = match cfg.position {
        Position::Bottom => (
            pad,
            0,
            if anchored_start { 0 } else { pad },
            if anchored_end { 0 } else { pad },
        ),
        Position::Top => (
            0,
            pad,
            if anchored_start { 0 } else { pad },
            if anchored_end { 0 } else { pad },
        ),
        Position::Left => (
            if anchored_start { 0 } else { pad },
            if anchored_end { 0 } else { pad },
            0,
            pad,
        ),
        Position::Right => (
            if anchored_start { 0 } else { pad },
            if anchored_end { 0 } else { pad },
            pad,
            0,
        ),
    };
    outer.set_margin_top(top);
    outer.set_margin_bottom(bottom);
    outer.set_margin_start(start);
    outer.set_margin_end(end);
    outer.append(&panel);

    // revealern ger autohide-animationen
    let revealer = gtk::Revealer::new();
    revealer.set_transition_type(match cfg.position {
        Position::Bottom => gtk::RevealerTransitionType::SlideUp,
        Position::Top => gtk::RevealerTransitionType::SlideDown,
        Position::Left => gtk::RevealerTransitionType::SlideRight,
        Position::Right => gtk::RevealerTransitionType::SlideLeft,
    });
    revealer.set_transition_duration(if cfg.appearance.animations {
        cfg.autohide.animation_ms
    } else {
        0
    });
    revealer.set_reveal_child(true);
    revealer.set_child(Some(&outer));
    win.set_child(Some(&revealer));
    let autohide_enabled = cfg.autohide.enabled;

    configure_layer(&win, &cfg, monitor);
    menu::setup_dock_actions(ctx, &win);

    let dock = Rc::new(Dock {
        window: win.clone(),
        items_box: items_box.clone(),
        revealer,
        connector,
        hover: Cell::new(false),
        hidden: Cell::new(false),
        dodge_overlap: Cell::new(false),
        hide_generation: Cell::new(0),
        sensor: RefCell::new(None),
    });

    // högerklick på tom panelyta → panelmenyn
    let empty_click = gtk::GestureClick::new();
    empty_click.set_button(3);
    {
        let ctx = ctx.clone();
        let panel2 = panel.clone();
        empty_click.connect_pressed(move |gesture, _, x, y| {
            gesture.set_state(gtk::EventSequenceState::Claimed);
            menu::popup_panel_menu(&ctx, &panel2, x, y);
        });
    }
    panel.add_controller(empty_click);

    // hover-spårning för autohide
    let motion = gtk::EventControllerMotion::new();
    {
        let dock2 = dock.clone();
        motion.connect_enter(move |_, _, _| {
            dock2.hover.set(true);
            dock2.hide_generation.set(dock2.hide_generation.get() + 1);
        });
    }
    {
        let ctx = ctx.clone();
        let dock2 = dock.clone();
        motion.connect_leave(move |_| {
            dock2.hover.set(false);
            schedule_hide(&ctx, &dock2);
        });
    }
    win.add_controller(motion);

    if autohide_enabled {
        build_sensor(ctx, &dock, monitor);
    }

    win.present();
    info!("dock uppe på {}", dock.connector);
    dock
}

/// Den tunna remsan vid skärmkanten som väcker en gömd dock.
fn build_sensor(ctx: &Rc<Ctx>, dock: &Rc<Dock>, monitor: &gdk::Monitor) {
    let cfg = ctx.cfg.borrow().for_output(&dock.connector);
    let sensor = gtk::ApplicationWindow::new(&ctx.app);
    sensor.add_css_class("waydock-sensor");
    sensor.init_layer_shell();
    sensor.set_namespace(Some("waydock-sensor"));
    sensor.set_monitor(Some(monitor));
    sensor.set_layer(Layer::Overlay);
    sensor.set_keyboard_mode(KeyboardMode::None);
    sensor.set_exclusive_zone(0);

    let edge = main_edge(&cfg.position);
    let (side_a, side_b) = side_edges(&cfg.position);
    sensor.set_anchor(edge, true);
    sensor.set_anchor(side_a, true);
    sensor.set_anchor(side_b, true);

    let strip = gtk::Box::new(gtk::Orientation::Horizontal, 0);
    let px = cfg.autohide.reveal_px.max(1);
    match cfg.position {
        Position::Bottom | Position::Top => strip.set_size_request(-1, px),
        _ => strip.set_size_request(px, -1),
    }
    drop(cfg);
    sensor.set_child(Some(&strip));

    let motion = gtk::EventControllerMotion::new();
    {
        let ctx = ctx.clone();
        let dock2 = dock.clone();
        motion.connect_enter(move |_, _, _| {
            if dock2.hidden.get() {
                set_dock_hidden(&dock2, false);
                // om pekaren aldrig når dockan: göm igen efter en stund
                let ctx2 = ctx.clone();
                let dock3 = dock2.clone();
                glib::timeout_add_local_once(Duration::from_millis(1500), move || {
                    if !dock3.hover.get() {
                        update_autohide(&ctx2);
                    }
                });
            }
        });
    }
    strip.add_controller(motion);

    sensor.present();
    *dock.sensor.borrow_mut() = Some(sensor);
}

fn set_dock_hidden(dock: &Rc<Dock>, hidden: bool) {
    if dock.hidden.get() == hidden {
        return;
    }
    dock.hidden.set(hidden);
    if hidden {
        let duration = dock.revealer.transition_duration();
        dock.revealer.set_reveal_child(false);
        let dock2 = dock.clone();
        glib::timeout_add_local_once(Duration::from_millis(duration as u64 + 30), move || {
            if dock2.hidden.get() {
                dock2.window.set_visible(false);
            }
        });
    } else {
        dock.window.set_visible(true);
        dock.revealer.set_reveal_child(true);
    }
}

fn should_hide(ctx: &Ctx, dock: &Dock) -> bool {
    let cfg = ctx.cfg.borrow().for_output(&dock.connector);
    if !cfg.autohide.enabled || dock.hover.get() {
        return false;
    }
    match cfg.autohide.mode {
        AutohideMode::Always => true,
        AutohideMode::Dodge => {
            if wayfire_ipc::available() {
                dock.dodge_overlap.get()
            } else {
                true // ingen geometri att gå på — bete dig som always
            }
        }
    }
}

/// Applicera göm/visa-läget på alla dockor.
pub fn update_autohide(ctx: &Rc<Ctx>) {
    for dock in ctx.docks.borrow().iter() {
        set_dock_hidden(dock, should_hide(ctx, dock));
    }
}

fn schedule_hide(ctx: &Rc<Ctx>, dock: &Rc<Dock>) {
    let delay = ctx.cfg.borrow().for_output(&dock.connector).autohide.hide_delay_ms;
    let generation = dock.hide_generation.get() + 1;
    dock.hide_generation.set(generation);
    let ctx = ctx.clone();
    let dock = dock.clone();
    glib::timeout_add_local_once(Duration::from_millis(delay as u64), move || {
        if dock.hide_generation.get() == generation && should_hide(&ctx, &dock) {
            set_dock_hidden(&dock, true);
        }
    });
}

/// Räkna om dodge-överlapp för alla dockor via Wayfire-IPC-geometri.
pub fn recompute_dodge(ctx: &Rc<Ctx>) {
    // hämta bara geometri om någon dock alls kör dodge
    let any_dodge = ctx.docks.borrow().iter().any(|d| {
        let c = ctx.cfg.borrow().for_output(&d.connector);
        c.autohide.enabled && c.autohide.mode == AutohideMode::Dodge
    });
    if !any_dodge {
        return;
    }
    let Some(views) = wayfire_ipc::list_views() else { return };
    let Some(outputs) = wayfire_ipc::list_outputs() else { return };

    for dock in ctx.docks.borrow().iter() {
        let eff = ctx.cfg.borrow().for_output(&dock.connector);
        if !eff.autohide.enabled || eff.autohide.mode != AutohideMode::Dodge {
            dock.dodge_overlap.set(false);
            continue;
        }
        let (position, margin) = (eff.position.clone(), eff.margin);
        let Some(output) = outputs
            .iter()
            .find(|o| o["name"].as_str() == Some(dock.connector.as_str()))
        else {
            continue;
        };
        let ow = output["geometry"]["width"].as_f64().unwrap_or(0.0);
        let oh = output["geometry"]["height"].as_f64().unwrap_or(0.0);
        // zonen dockan upptar vid sin kant (fönstrets storlek + marginal)
        let depth = match position {
            Position::Bottom | Position::Top => dock.window.height().max(40) + margin,
            _ => dock.window.width().max(40) + margin,
        } as f64;

        let overlap = views.iter().any(|v| {
            if v["role"].as_str() != Some("toplevel")
                || !v["mapped"].as_bool().unwrap_or(false)
                || v["minimized"].as_bool().unwrap_or(false)
                || v["output-name"].as_str() != Some(dock.connector.as_str())
            {
                return false;
            }
            let g = &v["geometry"];
            let (x, y) = (g["x"].as_f64().unwrap_or(0.0), g["y"].as_f64().unwrap_or(0.0));
            let (w, h) = (
                g["width"].as_f64().unwrap_or(0.0),
                g["height"].as_f64().unwrap_or(0.0),
            );
            // utanför aktuell arbetsyta → ingen kollision
            if x + w <= 0.0 || y + h <= 0.0 || x >= ow || y >= oh {
                return false;
            }
            match position {
                Position::Bottom => y + h >= oh - depth,
                Position::Top => y <= depth,
                Position::Left => x <= depth,
                Position::Right => x + w >= ow - depth,
            }
        });
        dock.dodge_overlap.set(overlap);
    }
    update_autohide(ctx);
}

/// Färska fönster för en ikon — slås upp vid klick-/tooltip-tillfället så
/// att closures aldrig agerar på inaktuellt state.
pub fn fresh_windows(ctx: &Ctx, connector: &str, key: &str) -> Vec<ToplevelInfo> {
    let service = ctx.service.borrow();
    let Some(service) = service.as_ref() else {
        return Vec::new();
    };
    let only_here = ctx.cfg.borrow().only_this_output(connector);
    service
        .snapshot()
        .into_iter()
        .filter(|t| {
            (!only_here || t.outputs.iter().any(|o| o == connector))
                && icons::lookup(&t.app_id).key == key
        })
        .collect()
}

/// Bygg en färsk kopia av en ikon vid interaktionstillfället.
fn live_item(ctx: &Ctx, connector: &str, item: &Item) -> Rc<Item> {
    Rc::new(Item {
        meta: item.meta.clone(),
        windows: fresh_windows(ctx, connector, &item.meta.key),
        pinned: item.pinned,
    })
}

/// Gruppera snapshot → ikonrad för en viss skärm.
fn build_items(ctx: &Ctx, connector: &str, snapshot: &[ToplevelInfo]) -> Vec<Item> {
    let cfg = ctx.cfg.borrow();
    let only_here = cfg.only_this_output(connector);
    let group = cfg.behavior.group_apps;

    let mut items: Vec<Item> = cfg
        .pins_for(connector)
        .iter()
        .filter_map(|pin| icons::lookup_pin(pin))
        .map(|meta| Item { meta, windows: Vec::new(), pinned: true })
        .collect();

    for t in snapshot {
        if only_here && !t.outputs.iter().any(|o| o == connector) {
            continue;
        }
        let meta = icons::lookup(&t.app_id);
        let existing = items
            .iter_mut()
            .find(|i| i.meta.key == meta.key && (group || i.windows.is_empty()));
        match existing {
            Some(item) => item.windows.push(t.clone()),
            None => items.push(Item { meta, windows: vec![t.clone()], pinned: false }),
        }
    }
    items
}

/// Uppdatera ikonraderna i alla dockor (körs vid varje fönsterhändelse).
pub fn refresh_items(ctx: &Rc<Ctx>) {
    let snapshot = ctx
        .service
        .borrow()
        .as_ref()
        .map(|s| s.snapshot())
        .unwrap_or_default();

    for dock in ctx.docks.borrow().iter() {
        while let Some(child) = dock.items_box.first_child() {
            dock.items_box.remove(&child);
        }
        add_special_buttons(ctx, dock);
        for item in build_items(ctx, &dock.connector, &snapshot) {
            let widget = build_item_widget(ctx, &dock.connector, Rc::new(item));
            dock.items_box.append(&widget);
        }
    }
}

fn special_button(icon_name: &str, tooltip: &str) -> gtk::Button {
    let btn = gtk::Button::new();
    btn.add_css_class("dock-item");
    btn.set_has_frame(false);
    let img = gtk::Image::from_icon_name(icon_name);
    img.set_pixel_size(24);
    btn.set_child(Some(&img));
    btn.set_tooltip_text(Some(tooltip));
    btn
}

fn add_special_buttons(ctx: &Rc<Ctx>, dock: &Rc<Dock>) {
    let specials = ctx
        .cfg
        .borrow()
        .for_output(&dock.connector)
        .special_buttons;

    if specials.overview && wayfire_ipc::available() {
        let btn = special_button("view-grid-symbolic", "Översikt (scale)");
        btn.connect_clicked(|_| wayfire_ipc::toggle_scale());
        dock.items_box.append(&btn);
    }
    if specials.show_desktop {
        let btn = special_button("user-desktop-symbolic", "Visa skrivbordet");
        let ctx = ctx.clone();
        btn.connect_clicked(move |_| {
            if let Some(service) = ctx.service.borrow().as_ref() {
                service.toggle_show_desktop();
            }
        });
        dock.items_box.append(&btn);
    }
}

fn build_item_widget(ctx: &Rc<Ctx>, connector: &str, item: Rc<Item>) -> gtk::Button {
    let cfg = ctx.cfg.borrow().for_output(connector);
    let icon_size = cfg.appearance.icon_size;
    let max_dots = cfg.appearance.indicator.max as usize;
    let tooltips = cfg.behavior.tooltips;
    let urgent_pulse = cfg.behavior.urgent_pulse;

    let btn = gtk::Button::new();
    btn.add_css_class("dock-item");
    btn.set_has_frame(false);

    if urgent_pulse && ctx.urgent.borrow().contains(&item.meta.key) {
        btn.add_css_class("urgent");
    }

    let vbox = gtk::Box::new(gtk::Orientation::Vertical, 2);
    let overlay = gtk::Overlay::new();
    overlay.set_child(Some(&icons::image_for(&item.meta, icon_size)));

    // siffer-badge för grupper med flera fönster
    if item.windows.len() > 1 {
        let badge = gtk::Label::new(Some(&item.windows.len().to_string()));
        badge.add_css_class("group-badge");
        badge.set_halign(gtk::Align::End);
        badge.set_valign(gtk::Align::Start);
        overlay.add_overlay(&badge);
    }
    vbox.append(&overlay);

    // indikatorprickar
    let ind_box = gtk::Box::new(gtk::Orientation::Horizontal, 2);
    ind_box.add_css_class("indicator-box");
    ind_box.set_halign(gtk::Align::Center);
    let any_active = item.windows.iter().any(|w| w.activated);
    for _ in 0..item.windows.len().min(max_dots) {
        let dot = gtk::Box::new(gtk::Orientation::Horizontal, 0);
        dot.add_css_class("indicator");
        if !any_active {
            dot.add_css_class("inactive");
        }
        ind_box.append(&dot);
    }
    vbox.append(&ind_box);
    btn.set_child(Some(&vbox));

    if tooltips {
        btn.set_has_tooltip(true);
        let ctx2 = ctx.clone();
        let item2 = item.clone();
        let conn2 = connector.to_string();
        btn.connect_query_tooltip(move |_, _, _, _, tooltip| {
            let windows = fresh_windows(&ctx2, &conn2, &item2.meta.key);
            let tip = match windows.len() {
                0 => item2.meta.display_name.clone(),
                1 => {
                    let t = &windows[0].title;
                    if t.is_empty() { item2.meta.display_name.clone() } else { t.clone() }
                }
                n => format!("{} — {n} fönster", item2.meta.display_name),
            };
            tooltip.set_text(Some(&tip));
            true
        });
    }

    // klick: vänster/mitt/höger
    let click = gtk::GestureClick::new();
    click.set_button(0);
    {
        let ctx = ctx.clone();
        let item = item.clone();
        let btn2 = btn.clone();
        let conn2 = connector.to_string();
        click.connect_released(move |gesture, _, _, _| {
            gesture.set_state(gtk::EventSequenceState::Claimed);
            let live = live_item(&ctx, &conn2, &item);
            match gesture.current_button() {
                1 => primary_action(&ctx, &conn2, &live, &btn2),
                2 => middle_action(&ctx, &conn2, &live),
                3 => menu::popup_item_menu(&ctx, &live, &btn2),
                _ => {}
            }
        });
    }
    btn.add_controller(click);

    // hover-popup för grupperade appar (om valt i configen)
    if item.windows.len() > 1 && cfg.behavior.group_popup == GroupPopup::Hover {
        let hover_ctl = gtk::EventControllerMotion::new();
        let ctx2 = ctx.clone();
        let item2 = item.clone();
        let btn2 = btn.clone();
        let conn2 = connector.to_string();
        hover_ctl.connect_enter(move |ctl, _, _| {
            let ctx3 = ctx2.clone();
            let item3 = item2.clone();
            let btn3 = btn2.clone();
            let conn3 = conn2.clone();
            let ctl2 = ctl.clone();
            glib::timeout_add_local_once(Duration::from_millis(350), move || {
                if ctl2.contains_pointer() {
                    let live = live_item(&ctx3, &conn3, &item3);
                    if live.windows.len() > 1 {
                        menu::popup_group_list(&ctx3, &live, &btn3);
                    }
                }
            });
        });
        btn.add_controller(hover_ctl);
    }

    // skroll: växla mellan gruppens fönster
    let scroll = gtk::EventControllerScroll::new(gtk::EventControllerScrollFlags::VERTICAL);
    {
        let ctx = ctx.clone();
        let item = item.clone();
        let conn2 = connector.to_string();
        scroll.connect_scroll(move |_, _, dy| {
            if ctx.cfg.borrow().for_output(&conn2).behavior.scroll == ScrollAction::CycleWindows {
                let live = live_item(&ctx, &conn2, &item);
                cycle_windows(&ctx, &live, dy > 0.0);
                glib::Propagation::Stop
            } else {
                glib::Propagation::Proceed
            }
        });
    }
    btn.add_controller(scroll);

    btn
}

fn primary_action(ctx: &Rc<Ctx>, connector: &str, item: &Rc<Item>, anchor: &gtk::Button) {
    let service = ctx.service.borrow();
    let Some(service) = service.as_ref() else {
        icons::launch(&item.meta);
        return;
    };
    let behavior = ctx.cfg.borrow().for_output(connector).behavior;
    match item.windows.len() {
        0 => icons::launch(&item.meta),
        1 => {
            let w = &item.windows[0];
            if w.activated && !w.minimized && behavior.click == ClickAction::FocusOrMinimize {
                service.set_minimized(w, true);
            } else {
                service.activate(w);
            }
        }
        _ => {
            let (click, popup) = (behavior.click.clone(), behavior.group_popup.clone());
            if click == ClickAction::Cycle || popup == GroupPopup::Hover {
                cycle_windows(ctx, item, true);
            } else {
                menu::popup_group_list(ctx, item, anchor);
            }
        }
    }
}

fn middle_action(ctx: &Rc<Ctx>, connector: &str, item: &Rc<Item>) {
    let action = ctx.cfg.borrow().for_output(connector).behavior.middle_click.clone();
    match action {
        MiddleClick::LaunchNew => icons::launch(&item.meta),
        MiddleClick::Close => {
            if let Some(service) = ctx.service.borrow().as_ref() {
                for w in &item.windows {
                    service.close(w);
                }
            }
        }
        MiddleClick::None => {}
    }
}

pub fn cycle_windows(ctx: &Rc<Ctx>, item: &Item, forward: bool) {
    if item.windows.is_empty() {
        return;
    }
    let service = ctx.service.borrow();
    let Some(service) = service.as_ref() else { return };
    let idx = item.windows.iter().position(|w| w.activated);
    let next = match idx {
        Some(i) => {
            if forward {
                (i + 1) % item.windows.len()
            } else {
                (i + item.windows.len() - 1) % item.windows.len()
            }
        }
        None => 0,
    };
    service.activate(&item.windows[next]);
}