nc-photos/app/lib/widget/home_photos/app_bar.dart

part of '../home_photos2.dart';

class _AppBar extends StatelessWidget {
  const _AppBar();

  @override
  Widget build(BuildContext context) {
    return _BlocSelector<bool>(
      selector: (state) => state.isLoading || state.syncProgress != null,
      builder: (context, isProcessing) => HomeSliverAppBar(
        account: context.bloc.account,
        isShowProgressIcon: isProcessing,
      ),
    );
  }
}

@npLog
class _SelectionAppBar extends StatelessWidget {
  const _SelectionAppBar();

  @override
  Widget build(BuildContext context) {
    return _BlocBuilder(
      buildWhen: (previous, current) =>
          previous.selectedItems != current.selectedItems,
      builder: (context, state) => SelectionAppBar(
        count: state.selectedItems.length,
        onClosePressed: () {
          context.addEvent(const _SetSelectedItems(items: {}));
        },
        actions: [
          IconButton(
            icon: const Icon(Icons.share_outlined),
            tooltip: L10n.global().shareTooltip,
            onPressed: () => _onSharePressed(context),
          ),
          IconButton(
            icon: const Icon(Icons.add),
            tooltip: L10n.global().addItemToCollectionTooltip,
            onPressed: () => _onAddPressed(context),
          ),
          const _SelectionAppBarMenu(),
        ],
      ),
    );
  }

  Future<void> _onAddPressed(BuildContext context) async {
    final collection = await Navigator.of(context)
        .pushNamed<Collection>(CollectionPicker.routeName);
    if (collection == null) {
      return;
    }
    context.bloc.add(_AddSelectedItemsToCollection(collection));
  }

  Future<void> _onSharePressed(BuildContext context) async {
    final bloc = context.read<_Bloc>();
    final selected = bloc.state.selectedItems
        .whereType<_FileItem>()
        .map((e) => e.file)
        .toList();
    if (selected.isEmpty) {
      SnackBarManager().showSnackBar(SnackBar(
        content: Text(L10n.global().shareSelectedEmptyNotification),
        duration: k.snackBarDurationNormal,
      ));
      return;
    }
    final result = await showDialog(
      context: context,
      builder: (context) => FileSharerDialog(
        account: bloc.account,
        files: selected,
      ),
    );
    if (result ?? false) {
      bloc.add(const _SetSelectedItems(items: {}));
    }
  }
}

@npLog
class _SelectionAppBarMenu extends StatelessWidget {
  const _SelectionAppBarMenu();

  @override
  Widget build(BuildContext context) {
    return PopupMenuButton<_SelectionMenuOption>(
      tooltip: MaterialLocalizations.of(context).moreButtonTooltip,
      itemBuilder: (context) => [
        PopupMenuItem(
          value: _SelectionMenuOption.download,
          child: Text(L10n.global().downloadTooltip),
        ),
        PopupMenuItem(
          value: _SelectionMenuOption.archive,
          child: Text(L10n.global().archiveTooltip),
        ),
        PopupMenuItem(
          value: _SelectionMenuOption.delete,
          child: Text(L10n.global().deleteTooltip),
        ),
      ],
      onSelected: (option) {
        switch (option) {
          case _SelectionMenuOption.archive:
            context.addEvent(const _ArchiveSelectedItems());
            break;
          case _SelectionMenuOption.delete:
            context.addEvent(const _DeleteSelectedItems());
            break;
          case _SelectionMenuOption.download:
            context.addEvent(const _DownloadSelectedItems());
            break;
          default:
            _log.shout("[build] Unknown option: $option");
            break;
        }
      },
    );
  }
}