immich/mobile/lib/pages/common/tab_controller.page.dart

import 'package:auto_route/auto_route.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/extensions/build_context_extensions.dart';
import 'package:immich_mobile/providers/album/album.provider.dart';
import 'package:immich_mobile/providers/asset_viewer/scroll_notifier.provider.dart';
import 'package:immich_mobile/providers/multiselect.provider.dart';
import 'package:immich_mobile/providers/search/search_input_focus.provider.dart';
import 'package:immich_mobile/routing/router.dart';
import 'package:immich_mobile/providers/asset.provider.dart';
import 'package:immich_mobile/providers/haptic_feedback.provider.dart';
import 'package:immich_mobile/providers/tab.provider.dart';

@RoutePage()
class TabControllerPage extends HookConsumerWidget {
  const TabControllerPage({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final isRefreshingAssets = ref.watch(assetProvider);
    final isRefreshingRemoteAlbums = ref.watch(isRefreshingRemoteAlbumProvider);

    Widget buildIcon({required Widget icon, required bool isProcessing}) {
      if (!isProcessing) return icon;
      return Stack(
        alignment: Alignment.center,
        clipBehavior: Clip.none,
        children: [
          icon,
          Positioned(
            right: -14,
            child: SizedBox(
              height: 12,
              width: 12,
              child: CircularProgressIndicator(
                strokeWidth: 2,
                valueColor: AlwaysStoppedAnimation<Color>(
                  context.primaryColor,
                ),
              ),
            ),
          ),
        ],
      );
    }

    onNavigationSelected(TabsRouter router, int index) {
      // On Photos page menu tapped
      if (router.activeIndex == 0 && index == 0) {
        scrollToTopNotifierProvider.scrollToTop();
      }

      // On Search page tapped
      if (router.activeIndex == 1 && index == 1) {
        ref.read(searchInputFocusProvider).requestFocus();
      }

      ref.read(hapticFeedbackProvider.notifier).selectionClick();
      router.setActiveIndex(index);
      ref.read(tabProvider.notifier).state = TabEnum.values[index];
    }

    bottomNavigationBar(TabsRouter tabsRouter) {
      return NavigationBar(
        selectedIndex: tabsRouter.activeIndex,
        onDestinationSelected: (index) =>
            onNavigationSelected(tabsRouter, index),
        destinations: [
          NavigationDestination(
            label: 'tab_controller_nav_photos'.tr(),
            icon: const Icon(
              Icons.photo_library_outlined,
            ),
            selectedIcon: buildIcon(
              isProcessing: isRefreshingAssets,
              icon: Icon(
                Icons.photo_library,
                color: context.primaryColor,
              ),
            ),
          ),
          NavigationDestination(
            label: 'tab_controller_nav_search'.tr(),
            icon: const Icon(
              Icons.search_rounded,
            ),
            selectedIcon: Icon(
              Icons.search,
              color: context.primaryColor,
            ),
          ),
          NavigationDestination(
            label: 'albums'.tr(),
            icon: const Icon(
              Icons.photo_album_outlined,
            ),
            selectedIcon: buildIcon(
              isProcessing: isRefreshingRemoteAlbums,
              icon: Icon(
                Icons.photo_album_rounded,
                color: context.primaryColor,
              ),
            ),
          ),
          NavigationDestination(
            label: 'library'.tr(),
            icon: const Icon(
              Icons.space_dashboard_outlined,
            ),
            selectedIcon: buildIcon(
              isProcessing: isRefreshingAssets,
              icon: Icon(
                Icons.space_dashboard_rounded,
                color: context.primaryColor,
              ),
            ),
          ),
        ],
      );
    }

    final multiselectEnabled = ref.watch(multiselectProvider);
    return AutoTabsRouter(
      routes: [
        const PhotosRoute(),
        SearchRoute(),
        const AlbumsRoute(),
        const LibraryRoute(),
      ],
      duration: const Duration(milliseconds: 600),
      transitionBuilder: (context, child, animation) => FadeTransition(
        opacity: animation,
        child: child,
      ),
      builder: (context, child) {
        final tabsRouter = AutoTabsRouter.of(context);
        return PopScope(
          canPop: tabsRouter.activeIndex == 0,
          onPopInvokedWithResult: (didPop, _) =>
              !didPop ? tabsRouter.setActiveIndex(0) : null,
          child: Scaffold(
            body: HeroControllerScope(
              controller: HeroController(),
              child: child,
            ),
            bottomNavigationBar:
                multiselectEnabled ? null : bottomNavigationBar(tabsRouter),
          ),
        );
      },
    );
  }
}