// QBZ Slint MVP — UI entry point.
//
// Stays thin: imports the feature screens and exports the single
// top-level window. No raw visual constants or domain logic here
// (MVP ADR, sections 13 and 21).

// Bundles + registers the Inter 18pt faces (compile-time embed) so the
// app can render with Inter — see the FONT_TEST_INTER toggle in main.rs.
import "assets/fonts/Inter_18pt-Regular.ttf";
import "assets/fonts/Inter_18pt-Medium.ttf";
import "assets/fonts/Inter_18pt-SemiBold.ttf";
import "assets/fonts/Inter_18pt-Bold.ttf";

import { Theme } from "foundation/semantic-colors.slint";
import { SplashScreen } from "splash/SplashScreen.slint";
import { LoginScreen } from "login/LoginScreen.slint";
import { AppShell } from "shell/AppShell.slint";
import { Toast } from "primitives/Toast.slint";

// Re-export the state globals so the Rust layer can populate them.
export { HomeState, HomeActions, DiscoverBrowseState, DiscoverBrowseActions, ForYouState, MixState, GenreFilterState, GenreFilterActions, AlbumState, ArtistState, NavState, ShellState, SessionState, SettingsState, AlbumActions, ArtistActions, ArtworkActions, NowPlayingState, QueueState, SearchState, SearchActions, NetworkSidebarState, NetworkSidebarActions, MusicianState, MusicianActions, LabelState, LabelActions, LocationViewState, LocationViewActions, FavoritesState, FavoritesActions, PlaylistPickerState, PlaylistPickerActions, PlaylistState, PlaylistActions, SidebarState, SidebarActions, SidebarFolderPopupState, CreatePlaylistState, CreatePlaylistActions, EditPlaylistState, EditPlaylistActions, CreateFolderState, CreateFolderActions, DragState, DragActions, PlaylistManagerState, PlaylistManagerActions, OfflineManagerState, OfflineManagerActions, MyQbzState, MyQbzActions, MixtapeCardItem, LocalLibraryState, LocalLibraryActions, LibraryFoldersState, LibFolderEditState, LibraryManageActions, LibraryScanState, LibAlbumFilterState, LocalAlbumState, LocalAlbumActions, TagEditorState, TagEditorActions, FolderEditState, FolderEditActions, ToastState, TextUtil, QconnectDevState, QconnectDevice, AppearanceState, EphemeralPlayChoiceState, EphemeralPlayChoiceActions, PlexSettingsState, PlexAuthActions, PlexSectionItem } from "state.slint";

// Which top-level screen is shown. The app starts on `splash` while it
// restores a saved session, then resolves to `shell` or `login`.
export enum AppScreen { splash, login, shell }

export component AppWindow inherits Window {
    title: "QBZ";
    preferred-width: 1180px;
    preferred-height: 760px;
    min-width: 940px;
    min-height: 600px;
    background: Theme.surface-main;

    // Resolved by the Rust layer from the desktop environment (e.g. the
    // KDE Plasma general font). Empty falls back to the Slint default.
    in property <string> system-font: "";
    default-font-family: root.system-font;

    in-out property <AppScreen> screen: AppScreen.splash;

    // Forwarded to the Rust layer.
    callback sign-in-via-browser();
    callback use-system-browser();
    callback start-offline();
    callback open-tos();
    callback open-album(string);
    callback open-artist(string);
    callback media-action(string, string, string);
    callback header-menu-navigate(string);
    callback discover-view-all(string, string);
    callback settings-bool(string, bool);
    callback settings-select(string, int);
    callback settings-slider(string, int);
    callback settings-reset();
    callback settings-release-device();
    callback logout();
    callback close-app();

    if root.screen == AppScreen.splash: SplashScreen { }

    if root.screen == AppScreen.login: LoginScreen {
        sign-in-via-browser => {
            root.sign-in-via-browser();
        }
        use-system-browser => {
            root.use-system-browser();
        }
        start-offline => {
            root.start-offline();
        }
        open-tos => {
            root.open-tos();
        }
    }

    if root.screen == AppScreen.shell: AppShell {
        // Fill the window. A conditionally-mounted child sizes to its PREFERRED
        // size by default, so without this the shell sized to its content — fine
        // while the right panels were always mounted (tall content), but once
        // they became conditional, with both closed the shell collapsed to the
        // top with dead space below. Bind to the real window size (`root` here is
        // the AppWindow); `100%` did not pin it.
        width: root.width;
        height: root.height;
        open-album(id) => {
            root.open-album(id);
        }
        open-artist(id) => {
            root.open-artist(id);
        }
        media-action(kind, id, action) => {
            root.media-action(kind, id, action);
        }
        header-menu-navigate(route) => {
            root.header-menu-navigate(route);
        }
        discover-view-all(e, t) => {
            root.discover-view-all(e, t);
        }
        settings-bool(k, v) => {
            root.settings-bool(k, v);
        }
        settings-select(k, i) => {
            root.settings-select(k, i);
        }
        settings-slider(k, v) => {
            root.settings-slider(k, v);
        }
        settings-reset => {
            root.settings-reset();
        }
        settings-release-device => {
            root.settings-release-device();
        }
        logout => {
            root.logout();
        }
        close-app => {
            root.close-app();
        }
    }

    // App-global in-app toast overlay. Declared last so it floats over
    // every screen (splash / login / shell). Driven by ToastState via
    // crate::toast.
    Toast {
        width: 100%;
        height: 100%;
    }
}