aves/lib/widgets/stats/stats_page.dart
Thibault Deckers d4892d692f l10n: el
2022-09-02 18:46:53 +02:00

382 lines
13 KiB
Dart

import 'dart:math';
import 'package:aves/model/entry.dart';
import 'package:aves/model/filters/filters.dart';
import 'package:aves/model/filters/location.dart';
import 'package:aves/model/filters/mime.dart';
import 'package:aves/model/filters/rating.dart';
import 'package:aves/model/filters/tag.dart';
import 'package:aves/model/settings/enums/accessibility_animations.dart';
import 'package:aves/model/settings/settings.dart';
import 'package:aves/model/source/collection_lens.dart';
import 'package:aves/model/source/collection_source.dart';
import 'package:aves/theme/colors.dart';
import 'package:aves/theme/icons.dart';
import 'package:aves/utils/constants.dart';
import 'package:aves/utils/mime_utils.dart';
import 'package:aves/widgets/collection/collection_page.dart';
import 'package:aves/widgets/common/basic/insets.dart';
import 'package:aves/widgets/common/extensions/build_context.dart';
import 'package:aves/widgets/common/identity/empty.dart';
import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
import 'package:aves/widgets/stats/filter_table.dart';
import 'package:aves/widgets/stats/histogram.dart';
import 'package:charts_flutter/flutter.dart' as charts;
import 'package:collection/collection.dart';
import 'package:equatable/equatable.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:percent_indicator/linear_percent_indicator.dart';
import 'package:provider/provider.dart';
class StatsPage extends StatelessWidget {
static const routeName = '/collection/stats';
final CollectionSource source;
final CollectionLens? parentCollection;
final Set<AvesEntry> entries;
final Map<String, int> entryCountPerCountry = {}, entryCountPerPlace = {}, entryCountPerTag = {};
final Map<int, int> entryCountPerRating = Map.fromEntries(List.generate(7, (i) => MapEntry(5 - i, 0)));
static const mimeDonutMinWidth = 124.0;
StatsPage({
super.key,
required this.entries,
required this.source,
this.parentCollection,
}) {
entries.forEach((entry) {
if (entry.hasAddress) {
final address = entry.addressDetails!;
var country = address.countryName;
if (country != null && country.isNotEmpty) {
country += '${LocationFilter.locationSeparator}${address.countryCode}';
entryCountPerCountry[country] = (entryCountPerCountry[country] ?? 0) + 1;
}
final place = address.place;
if (place != null && place.isNotEmpty) {
entryCountPerPlace[place] = (entryCountPerPlace[place] ?? 0) + 1;
}
}
entry.tags.forEach((tag) {
entryCountPerTag[tag] = (entryCountPerTag[tag] ?? 0) + 1;
});
final rating = entry.rating;
entryCountPerRating[rating] = (entryCountPerRating[rating] ?? 0) + 1;
});
}
@override
Widget build(BuildContext context) {
final l10n = context.l10n;
final locale = l10n.localeName;
final numberFormat = NumberFormat.decimalPattern(locale);
final percentFormat = NumberFormat.percentPattern();
Widget child;
if (entries.isEmpty) {
child = EmptyContent(
icon: AIcons.image,
text: l10n.collectionEmptyImages,
);
} else {
final theme = Theme.of(context);
final isDark = theme.brightness == Brightness.dark;
final animate = context.select<Settings, bool>((v) => v.accessibilityAnimations.animate);
final byMimeTypes = groupBy<AvesEntry, String>(entries, (entry) => entry.mimeType).map<String, int>((k, v) => MapEntry(k, v.length));
final imagesByMimeTypes = Map.fromEntries(byMimeTypes.entries.where((kv) => kv.key.startsWith('image')));
final videoByMimeTypes = Map.fromEntries(byMimeTypes.entries.where((kv) => kv.key.startsWith('video')));
final mimeDonuts = Provider.value(
value: isDark ? NeonOnDark() : PastelOnLight(),
child: Builder(
builder: (context) {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
children: [
_buildMimeDonut(context, AIcons.image, imagesByMimeTypes, animate, numberFormat),
_buildMimeDonut(context, AIcons.video, videoByMimeTypes, animate, numberFormat),
],
);
},
),
);
final catalogued = entries.where((entry) => entry.isCatalogued);
final withGps = catalogued.where((entry) => entry.hasGps);
final withGpsCount = withGps.length;
final withGpsPercent = withGpsCount / entries.length;
final textScaleFactor = MediaQuery.textScaleFactorOf(context);
final lineHeight = 16 * textScaleFactor;
final barRadius = Radius.circular(lineHeight / 2);
final locationIndicator = Padding(
padding: const EdgeInsets.all(16),
child: Column(
children: [
Row(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(AIcons.location),
Expanded(
child: LinearPercentIndicator(
percent: withGpsPercent,
lineHeight: lineHeight,
backgroundColor: theme.colorScheme.onPrimary.withOpacity(.1),
progressColor: theme.colorScheme.secondary,
animation: animate,
isRTL: context.isRtl,
barRadius: barRadius,
center: Text(
percentFormat.format(withGpsPercent),
style: TextStyle(
shadows: isDark ? Constants.embossShadows : null,
),
),
padding: EdgeInsets.symmetric(horizontal: lineHeight),
),
),
// end padding to match leading, so that inside label is aligned with outside label below
const SizedBox(width: 24),
],
),
const SizedBox(height: 8),
Text(
l10n.statsWithGps(withGpsCount),
textAlign: TextAlign.center,
),
],
),
);
final showRatings = entryCountPerRating.entries.any((kv) => kv.key != 0 && kv.value > 0);
child = ListView(
children: [
mimeDonuts,
Histogram(
entries: entries,
onFilterSelection: (filter) => _onFilterSelection(context, filter),
),
locationIndicator,
..._buildFilterSection<String>(context, l10n.statsTopCountriesSectionTitle, entryCountPerCountry, (v) => LocationFilter(LocationLevel.country, v)),
..._buildFilterSection<String>(context, l10n.statsTopPlacesSectionTitle, entryCountPerPlace, (v) => LocationFilter(LocationLevel.place, v)),
..._buildFilterSection<String>(context, l10n.statsTopTagsSectionTitle, entryCountPerTag, TagFilter.new),
if (showRatings) ..._buildFilterSection<int>(context, l10n.searchRatingSectionTitle, entryCountPerRating, RatingFilter.new, sortByCount: false, maxRowCount: null),
],
);
}
return MediaQueryDataProvider(
child: Scaffold(
appBar: AppBar(
title: Text(l10n.statsPageTitle),
),
body: GestureAreaProtectorStack(
child: SafeArea(
bottom: false,
child: child,
),
),
),
);
}
Widget _buildMimeDonut(
BuildContext context,
IconData icon,
Map<String, int> byMimeTypes,
bool animate,
NumberFormat numberFormat,
) {
if (byMimeTypes.isEmpty) return const SizedBox.shrink();
final sum = byMimeTypes.values.fold<int>(0, (prev, v) => prev + v);
final colors = context.watch<AvesColorsData>();
final seriesData = byMimeTypes.entries.map((kv) {
final mimeType = kv.key;
final displayText = MimeUtils.displayType(mimeType);
return EntryByMimeDatum(
mimeType: mimeType,
displayText: displayText,
color: colors.fromString(displayText),
entryCount: kv.value,
);
}).toList();
seriesData.sort((d1, d2) {
final c = d2.entryCount.compareTo(d1.entryCount);
return c != 0 ? c : compareAsciiUpperCase(d1.displayText, d2.displayText);
});
final series = [
charts.Series<EntryByMimeDatum, String>(
id: 'mime',
colorFn: (d, i) => charts.ColorUtil.fromDartColor(d.color),
domainFn: (d, i) => d.displayText,
measureFn: (d, i) => d.entryCount,
data: seriesData,
labelAccessorFn: (d, _) => '${d.displayText}: ${d.entryCount}',
),
];
return LayoutBuilder(builder: (context, constraints) {
final textScaleFactor = MediaQuery.textScaleFactorOf(context);
final minWidth = mimeDonutMinWidth * textScaleFactor;
final availableWidth = constraints.maxWidth;
final dim = max(minWidth, availableWidth / (availableWidth > 4 * minWidth ? 4 : (availableWidth > 2 * minWidth ? 2 : 1)));
final donut = SizedBox(
width: dim,
height: dim,
child: Stack(
children: [
charts.PieChart(
series,
animate: animate,
defaultRenderer: charts.ArcRendererConfig<String>(
arcWidth: 16,
),
),
Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Icon(icon),
Text(
numberFormat.format(sum),
textAlign: TextAlign.center,
),
],
),
),
],
),
);
final legend = SizedBox(
width: dim,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: seriesData
.map((d) => GestureDetector(
onTap: () => _onFilterSelection(context, MimeFilter(d.mimeType)),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(AIcons.disc, color: d.color),
const SizedBox(width: 8),
Flexible(
child: Text(
d.displayText,
overflow: TextOverflow.fade,
softWrap: false,
maxLines: 1,
),
),
const SizedBox(width: 8),
Text(
numberFormat.format(d.entryCount),
style: TextStyle(
color: Theme.of(context).textTheme.caption!.color,
),
),
],
),
))
.toList(),
),
);
final children = [
donut,
legend,
];
return availableWidth > minWidth * 2
? Row(
mainAxisSize: MainAxisSize.min,
children: children,
)
: Column(
mainAxisSize: MainAxisSize.min,
children: children,
);
});
}
List<Widget> _buildFilterSection<T extends Comparable>(
BuildContext context,
String title,
Map<T, int> entryCountMap,
CollectionFilter Function(T key) filterBuilder, {
bool sortByCount = true,
int? maxRowCount = 5,
}) {
if (entryCountMap.isEmpty) return [];
return [
Padding(
padding: const EdgeInsets.all(16),
child: Text(
title,
style: Constants.knownTitleTextStyle,
),
),
FilterTable(
totalEntryCount: entries.length,
entryCountMap: entryCountMap,
filterBuilder: filterBuilder,
sortByCount: sortByCount,
maxRowCount: maxRowCount,
onFilterSelection: (filter) => _onFilterSelection(context, filter),
),
];
}
void _onFilterSelection(BuildContext context, CollectionFilter filter) {
if (parentCollection != null) {
_applyToParentCollectionPage(context, filter);
} else {
_jumpToCollectionPage(context, filter);
}
}
void _applyToParentCollectionPage(BuildContext context, CollectionFilter filter) {
parentCollection!.addFilter(filter);
// We delay closing the current page after applying the filter selection
// so that hero animation target is ready in the `FilterBar`,
// even when the target is a child of an `AnimatedList`.
// Do not use `WidgetsBinding.instance.addPostFrameCallback`,
// as it may not trigger if there is no subsequent build.
Future.delayed(const Duration(milliseconds: 100), () => Navigator.pop(context));
}
void _jumpToCollectionPage(BuildContext context, CollectionFilter filter) {
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
settings: const RouteSettings(name: CollectionPage.routeName),
builder: (context) => CollectionPage(
source: source,
filters: {filter},
),
),
(route) => false,
);
}
}
@immutable
class EntryByMimeDatum extends Equatable {
final String mimeType, displayText;
final Color color;
final int entryCount;
@override
List<Object?> get props => [mimeType, displayText, color, entryCount];
const EntryByMimeDatum({
required this.mimeType,
required this.displayText,
required this.color,
required this.entryCount,
});
}