spotube/lib/components/root/spotube_navigation_bar.dart

import 'dart:ui';

import 'package:curved_navigation_bar/curved_navigation_bar.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';

import 'package:spotube/collections/side_bar_tiles.dart';
import 'package:spotube/components/root/sidebar.dart';
import 'package:spotube/extensions/constrains.dart';
import 'package:spotube/extensions/context.dart';
import 'package:spotube/hooks/use_brightness_value.dart';
import 'package:spotube/provider/download_manager_provider.dart';
import 'package:spotube/provider/user_preferences_provider.dart';

class SpotubeNavigationBar extends HookConsumerWidget {
  final int selectedIndex;
  final void Function(int) onSelectedIndexChanged;

  const SpotubeNavigationBar({
    required this.selectedIndex,
    required this.onSelectedIndexChanged,
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context, ref) {
    final theme = Theme.of(context);
    final downloadCount = ref.watch(downloadManagerProvider).$downloadCount;
    final mediaQuery = MediaQuery.of(context);
    final layoutMode =
        ref.watch(userPreferencesProvider.select((s) => s.layoutMode));

    final insideSelectedIndex = useState<int>(selectedIndex);

    final buttonColor = useBrightnessValue(
      theme.colorScheme.inversePrimary,
      theme.colorScheme.primary.withOpacity(0.2),
    );

    final navbarTileList =
        useMemoized(() => getNavbarTileList(context.l10n), [context.l10n]);

    useEffect(() {
      insideSelectedIndex.value = selectedIndex;
      return null;
    }, [selectedIndex]);

    if (layoutMode == LayoutMode.extended ||
        (mediaQuery.mdAndUp && layoutMode == LayoutMode.adaptive)) {
      return const SizedBox();
    }

    return ClipRect(
      child: BackdropFilter(
        filter: ImageFilter.blur(sigmaX: 15, sigmaY: 15),
        child: CurvedNavigationBar(
          backgroundColor:
              theme.colorScheme.secondaryContainer.withOpacity(0.72),
          buttonBackgroundColor: buttonColor,
          color: theme.colorScheme.background,
          height: 50,
          animationDuration: const Duration(milliseconds: 350),
          items: navbarTileList.map(
            (e) {
              /// Using this [Builder] as an workaround for the first item's
              /// icon color not updating unless navigating to another page
              return Builder(builder: (context) {
                return MouseRegion(
                  cursor: SystemMouseCursors.click,
                  child: Badge(
                    isLabelVisible: e.id == "library" && downloadCount > 0,
                    label: Text(downloadCount.toString()),
                    child: Icon(
                      e.icon,
                      color: Theme.of(context).colorScheme.primary,
                    ),
                  ),
                );
              });
            },
          ).toList(),
          index: insideSelectedIndex.value,
          onTap: (i) {
            insideSelectedIndex.value = i;
            if (navbarTileList[i].id == "settings") {
              Sidebar.goToSettings(context);
              return;
            }
            onSelectedIndexChanged(i);
          },
        ),
      ),
    );
  }
}