aves/lib/widgets/stats.dart
Thibault Deckers 76d9de9b1e added stats
2020-03-20 21:35:28 +09:00

114 lines
3.7 KiB
Dart

import 'dart:math';
import 'package:aves/model/collection_lens.dart';
import 'package:aves/model/image_entry.dart';
import 'package:aves/utils/color_utils.dart';
import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
import 'package:charts_flutter/flutter.dart' as charts;
import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
class StatsPage extends StatelessWidget {
final CollectionLens collection;
const StatsPage({this.collection});
List<ImageEntry> get entries => collection.sortedEntries;
@override
Widget build(BuildContext context) {
final catalogued = entries.where((entry) => entry.isCatalogued);
final withGps = catalogued.where((entry) => entry.hasGps);
final located = withGps.where((entry) => entry.isLocated);
final Map<String, int> byMimeTypes = groupBy(entries, (entry) => entry.mimeType).map((k, v) => MapEntry(k, v.length));
return MediaQueryDataProvider(
child: Scaffold(
appBar: AppBar(
title: const Text('Stats'),
),
body: ListView(
children: [
_buildMimePie(context, 'images', Map.fromEntries(byMimeTypes.entries.where((kv) => kv.key.startsWith('image/')))),
_buildMimePie(context, 'videos', Map.fromEntries(byMimeTypes.entries.where((kv) => kv.key.startsWith('video/')))),
const Divider(),
Text('Catalogued: ${catalogued.length}'),
Text('With GPS: ${withGps.length}'),
Text('With address: ${located.length}'),
],
),
),
);
}
Widget _buildMimePie(BuildContext context, String label, Map<String, num> byMimeTypes) {
if (byMimeTypes.isEmpty) return const SizedBox.shrink();
final seriesData = byMimeTypes.entries.map((kv) => StringNumDatum(kv.key.replaceFirst(RegExp('.*/'), '').toUpperCase(), kv.value)).toList();
seriesData.sort((kv1, kv2) => kv2.value.compareTo(kv1.value));
final series = [
charts.Series<StringNumDatum, String>(
id: label,
colorFn: (d, i) => charts.ColorUtil.fromDartColor(stringToColor(d.key)),
domainFn: (d, i) => d.key,
measureFn: (d, i) => d.value,
data: seriesData,
labelAccessorFn: (d, _) => '${d.key}: ${d.value}',
),
];
final size = MediaQuery.of(context).size;
final circleDim = min(size.width, size.height) / 2;
return Row(
children: [
Container(
width: circleDim,
height: circleDim,
child: Stack(
children: [
charts.PieChart(
series,
defaultRenderer: charts.ArcRendererConfig(
arcWidth: 16,
),
),
Center(
child: Text(
'${byMimeTypes.values.fold(0, (prev, v) => prev + v)}\n$label',
textAlign: TextAlign.center,
),
),
],
),
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: seriesData
.map((kv) => Row(
children: [
Icon(Icons.fiber_manual_record, color: stringToColor(kv.key)),
const SizedBox(width: 8),
Text(kv.key),
const SizedBox(width: 8),
Text('${kv.value}'),
],
))
.toList()),
],
);
}
}
class StringNumDatum {
final String key;
final num value;
const StringNumDatum(this.key, this.value);
@override
String toString() {
return '[$runtimeType#$hashCode: key=$key, value=$value]';
}
}