spotube/lib/pages/stats/fees/fees.dart

import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:shadcn_flutter/shadcn_flutter.dart';
import 'package:skeletonizer/skeletonizer.dart';
import 'package:sliver_tools/sliver_tools.dart';
import 'package:spotube/collections/formatters.dart';
import 'package:spotube/components/titlebar/titlebar.dart';
import 'package:spotube/modules/stats/common/artist_item.dart';
import 'package:spotube/extensions/context.dart';

import 'package:spotube/provider/history/top.dart';
import 'package:spotube/provider/history/top/tracks.dart';
import 'package:spotube/provider/spotify/spotify.dart';
import 'package:very_good_infinite_list/very_good_infinite_list.dart';
import 'package:auto_route/auto_route.dart';

@RoutePage()
class StatsStreamFeesPage extends HookConsumerWidget {
  static const name = "stats_stream_fees";

  const StatsStreamFeesPage({super.key});

  @override
  Widget build(BuildContext context, ref) {
    final duration = useState<HistoryDuration>(HistoryDuration.days30);

    final topTracks = ref.watch(
      historyTopTracksProvider(duration.value),
    );
    final topTracksNotifier =
        ref.watch(historyTopTracksProvider(duration.value).notifier);

    final artistsData = useMemoized(
        () => topTracks.asData?.value.artists ?? [], [topTracks.asData?.value]);

    final total = useMemoized(
      () => artistsData.fold<double>(
        0,
        (previousValue, element) => previousValue + element.count * 0.005,
      ),
      [artistsData],
    );

    final translations = <HistoryDuration, String>{
      HistoryDuration.days7: context.l10n.this_week,
      HistoryDuration.days30: context.l10n.this_month,
      HistoryDuration.months6: context.l10n.last_6_months,
      HistoryDuration.year: context.l10n.this_year,
      HistoryDuration.years2: context.l10n.last_2_years,
      HistoryDuration.allTime: context.l10n.all_time,
    };

    return Scaffold(
      headers: [
        TitleBar(
          automaticallyImplyLeading: true,
          title: Text(context.l10n.streaming_fees_hypothetical),
        )
      ],
      child: CustomScrollView(
        slivers: [
          SliverCrossAxisConstrained(
            maxCrossAxisExtent: 600,
            alignment: -1,
            child: SliverPadding(
              padding: const EdgeInsets.all(16.0),
              sliver: SliverToBoxAdapter(
                child: Text(
                  context.l10n.spotify_hipotetical_calculation,
                ).small().muted(),
              ),
            ),
          ),
          SliverToBoxAdapter(
            child: Padding(
              padding: const EdgeInsets.symmetric(horizontal: 16),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    context.l10n.total_money(usdFormatter.format(total)),
                  ).semiBold().large(),
                  Select<HistoryDuration>(
                    value: duration.value,
                    onChanged: (value) {
                      if (value == null) return;
                      duration.value = value;
                    },
                    itemBuilder: (context, value) => Text(translations[value]!),
                    constraints: const BoxConstraints(maxWidth: 150),
                    popupWidthConstraint: PopoverConstraint.anchorMaxSize,
                    children: [
                      for (final entry in translations.entries)
                        SelectItemButton(
                          value: entry.key,
                          child: Text(entry.value),
                        ),
                    ],
                  ),
                ],
              ),
            ),
          ),
          SliverSafeArea(
            sliver: Skeletonizer.sliver(
              enabled: topTracks.isLoading && !topTracks.isLoadingNextPage,
              child: SliverInfiniteList(
                onFetchData: () async {
                  await topTracksNotifier.fetchMore();
                },
                hasError: topTracks.hasError,
                isLoading: topTracks.isLoading && !topTracks.isLoadingNextPage,
                hasReachedMax: topTracks.asData?.value.hasMore ?? true,
                itemCount: artistsData.length,
                itemBuilder: (context, index) {
                  final artist = artistsData[index];
                  return StatsArtistItem(
                    artist: artist.artist,
                    info: Text(usdFormatter.format(artist.count * 0.005)),
                  );
                },
              ),
            ),
          ),
        ],
      ),
    );
  }
}