selfprivacy.org.app/lib/ui/molecules/cards/chart_card.dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:selfprivacy/ui/atoms/cards/filled_card.dart';

class ChartCard extends StatelessWidget {
  const ChartCard({
    required this.title,
    required this.chart,
    required this.isLoading,
    this.trailing = const [],
    this.legendItems = const [],
    super.key,
  });

  final String title;
  final Widget? chart;
  final bool isLoading;
  final List<Widget> trailing;
  final List<Widget> legendItems;

  @override
  Widget build(final BuildContext context) => FilledCard(
        clipped: false,
        mergeSemantics: trailing.isEmpty,
        child: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              ExcludeSemantics(
                child: Row(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  mainAxisSize: MainAxisSize.max,
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Flexible(
                      child: Text(
                        title,
                        style:
                            Theme.of(context).textTheme.titleMedium?.copyWith(
                                  color: Theme.of(context)
                                      .colorScheme
                                      .onSurfaceVariant,
                                ),
                      ),
                    ),
                    Flexible(
                      fit: FlexFit.loose,
                      child: Wrap(
                        spacing: 8.0,
                        runSpacing: 8.0,
                        alignment: WrapAlignment.end,
                        runAlignment: WrapAlignment.end,
                        children: legendItems,
                      ),
                    ),
                  ],
                ),
              ),
              const Gap(16),
              Stack(
                alignment: Alignment.center,
                children: [
                  chart ?? const SizedBox.shrink(),
                  AnimatedOpacity(
                    duration: const Duration(milliseconds: 200),
                    opacity: isLoading ? 1 : 0,
                    child: const _GraphLoadingCardContent(),
                  ),
                ],
              ),
              if (trailing.isNotEmpty) const Divider(),
              ...trailing,
            ],
          ),
        ),
      );
}

class _GraphLoadingCardContent extends StatelessWidget {
  const _GraphLoadingCardContent();

  @override
  Widget build(final BuildContext context) => SizedBox(
        height: 200,
        child: Semantics(
          label: 'resource_chart.loading'.tr(),
          child: const Center(child: CircularProgressIndicator.adaptive()),
        ),
      );
}