//@ pragma UseQApplication
// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// UseQApplication (line 1) is for the island's tray menus: SystemTrayItem
// display() fails without it. Pragmas are read only at launch, so changing
// it needs a restart, not a hot reload.
import Quickshell
import Quickshell.Io
import Quickshell.Wayland
import QtQuick
import "modules/ai"
import "modules/appearance"
import "modules/assistant"
import "modules/autostart"
import "modules/bluetooth"
import "modules/clipboard"
import "modules/git"
import "modules/kdeconnect"
import "modules/mail"
import "modules/network"
import "modules/notes"
import "modules/perf"
import "modules/sound"
import "modules/status"
import "modules/updates"
import "modules/user"
import "modules/vm"
import "island"
import "assistant"

ShellRoot {
    // Quickshell exits once no window is visible, and the drawer is closed
    // most of the time. See AGENTS.md.
    //
    // It is also the window the idle inhibitor attaches to: IdleInhibitor
    // needs a non-null window, and this is the one window that exists for
    // the whole life of the shell.
    PanelWindow {
        id: keepalive
        visible: true
        implicitWidth: 1
        implicitHeight: 1
        color: "transparent"
        exclusionMode: ExclusionMode.Ignore
        mask: Region {}
        WlrLayershell.keyboardFocus: WlrKeyboardFocus.None

        // The singleton has no window of its own and IdleInhibitor needs one.
        Component.onCompleted: Status.inhibitWindow = keepalive
    }

    Drawer {
        id: drawer
        settingsWindow: settings
        modules: [
            SoundModule { id: soundModule },
            NetworkModule {},
            BluetoothModule {},
            KdeConnectModule {},
            MailModule {},
            StatusModule {},
            PerfModule {},
            ClipboardModule {},
            UpdatesModule {},
            VmModule {},
            AiModule {},
            UserModule {},
            NotesModule {},
            WallpaperModule {},
            ThemeModule {},
            IconsModule {},
            SunsetModule {},
            IdleModule {},
            AutostartModule {},
            AssistantModule { id: asstSettings },
            PresetsModule {},
            GitModule {},
        ]
    }

    // Pages set once and left alone, the modules marked `settings`, in a
    // window of their own. See Settings.qml.
    Settings {
        id: settings
        modules: drawer.modules
    }

    // unified-desktop-theme's manual steps, its own window on DP-3. See
    // modules/appearance/README.md.
    StepsWindow { id: stepsWindow }

    // The island on DP-1. It reads the sound module's service rather than
    // binding PipeWire a second time.
    Island {
        id: island
        sound: soundModule.service
        drawer: drawer
        asst: assistant
    }

    // The assistant canvas on SUPER+Home, a view over desktop-assistant's
    // socket. See assistant/README.md.
    Assistant { id: assistant; swapping: asstSettings.loading }

    // Opening the assistant loads its preferred model if another one is in
    // VRAM. See modules/assistant/README.md.
    Connections {
        target: assistant
        function onOpenChanged() { if (assistant.open) asstSettings.ensurePreferred(); }
    }

    // The waybar launcher and the deep-link keybinds all reach this:
    //   qs -p <this dir> ipc call drawer toggle       -> the grid
    //   qs -p <this dir> ipc call drawer open mail    -> the mail page
    // Quickshell 0.3.1 IPC requires every declared argument to be present,
    // and a parameter with a JS default registers as QVariant, which IPC
    // rejects. So the page name cannot be optional: `open` always takes a
    // page, and the page-less grid is `toggle`, the zero-argument shape the
    // waybar launcher called.
    IpcHandler {
        target: "drawer"
        function open(page: string) { drawer.show(page); }
        function toggle() { drawer.toggle(""); }
        function close() { drawer.close(); }
    }

    //   qs -p <this dir> ipc call settings open autostart
    //   qs -p <this dir> ipc call settings toggle
    IpcHandler {
        target: "settings"
        function open(page: string) { settings.show(page); }
        function toggle() { if (settings.open) settings.close(); else settings.show(""); }
    }

    // The verbs of the appearance shell this replaced, so its callers only
    // change the path: udt-steps calls `steps`.
    //   qs -p <this dir> ipc call appearance wallpaper
    IpcHandler {
        target: "appearance"
        function toggle() { settings.show("wallpaper"); }
        function wallpaper() { settings.show("wallpaper"); }
        function theme() { settings.show("theme"); }
        function sunset() { settings.show("sunset"); }
        function idle() { settings.show("idle"); }
        function icons() { settings.show("icons"); }
        function steps() { stepsWindow.poke(); }
        function selftest(): string {
            return Hyprsunset.selftest() + "\n" + Hypridle.selftest() + "\n" + Icons.selftest() + "\n" + Steps.selftest();
        }
    }

    //   qs -p <this dir> ipc call assistant toggle    -> SUPER+Home
    IpcHandler {
        target: "assistant"
        function toggle() { assistant.toggle(); }
    }
}