✨ Fortune graph
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258
lib/widgets/account/fortune_graph.dart
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258
lib/widgets/account/fortune_graph.dart
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import 'package:easy_localization/easy_localization.dart';
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import 'package:fl_chart/fl_chart.dart';
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import 'package:flutter/material.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:island/models/activity.dart';
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import 'package:styled_widget/styled_widget.dart';
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/// A widget that displays a graph of fortune levels over time
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/// This can be used alongside the EventCalendarWidget to provide a different visualization
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class FortuneGraphWidget extends HookConsumerWidget {
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/// The list of calendar entries to display
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final AsyncValue<List<SnEventCalendarEntry>> events;
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/// Whether to constrain the width of the graph
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final bool constrainWidth;
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/// Maximum width constraint when constrainWidth is true
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final double maxWidth;
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/// Height of the graph
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final double height;
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/// Callback when a point is selected
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final void Function(DateTime)? onPointSelected;
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const FortuneGraphWidget({
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super.key,
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required this.events,
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this.constrainWidth = false,
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this.maxWidth = double.infinity,
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this.height = 180,
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this.onPointSelected,
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});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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// Filter events to only include those with check-in results
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final filteredEvents = events.whenData(
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(data) =>
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data
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.where((event) => event.checkInResult != null)
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.toList()
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.cast<SnEventCalendarEntry>()
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// Sort by date
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..sort((a, b) => a.date.compareTo(b.date)),
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);
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final content = Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Text(
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'fortuneGraph',
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).tr().fontSize(18).bold().padding(all: 16, bottom: 24),
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SizedBox(
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height: height,
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child: filteredEvents.when(
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data: (data) {
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if (data.isEmpty) {
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return Center(child: Text('noFortuneData').tr());
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}
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// Create spots for the line chart
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final spots =
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data
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.map(
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(e) => FlSpot(
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e.date.millisecondsSinceEpoch.toDouble(),
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e.checkInResult!.level.toDouble(),
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),
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)
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.toList();
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// Get min and max dates for the x-axis
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final minDate = data.first.date;
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final maxDate = data.last.date;
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return Padding(
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padding: const EdgeInsets.fromLTRB(16, 0, 16, 24),
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child: LineChart(
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LineChartData(
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gridData: FlGridData(
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show: true,
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horizontalInterval: 1,
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drawVerticalLine: false,
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),
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titlesData: FlTitlesData(
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bottomTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: true,
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reservedSize: 30,
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interval: _calculateDateInterval(minDate, maxDate),
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getTitlesWidget: (value, meta) {
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final date = DateTime.fromMillisecondsSinceEpoch(
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value.toInt(),
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);
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return Padding(
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padding: const EdgeInsets.only(top: 8.0),
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child: Text(
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DateFormat.MMMd().format(date),
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style: TextStyle(fontSize: 10),
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),
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);
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},
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),
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),
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leftTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: true,
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interval: 1,
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reservedSize: 40,
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getTitlesWidget: (value, meta) {
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final level = value.toInt();
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if (level < 0 || level > 4) return const SizedBox();
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return Padding(
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padding: const EdgeInsets.only(right: 8.0),
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child: Text(
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'checkInResultT$level'.tr(),
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style: TextStyle(fontSize: 10),
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),
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);
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},
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),
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),
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topTitles: AxisTitles(
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sideTitles: SideTitles(showTitles: false),
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),
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rightTitles: AxisTitles(
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sideTitles: SideTitles(showTitles: false),
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),
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),
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borderData: FlBorderData(
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show: true,
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border: Border(
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bottom: BorderSide(
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color: Theme.of(context).dividerColor,
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),
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left: BorderSide(color: Theme.of(context).dividerColor),
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),
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),
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minX: minDate.millisecondsSinceEpoch.toDouble(),
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maxX: maxDate.millisecondsSinceEpoch.toDouble(),
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minY: 0,
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maxY: 4,
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lineTouchData: LineTouchData(
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touchTooltipData: LineTouchTooltipData(
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getTooltipItems: (touchedSpots) {
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return touchedSpots.map((spot) {
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final date = DateTime.fromMillisecondsSinceEpoch(
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spot.x.toInt(),
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);
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final level = spot.y.toInt();
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return LineTooltipItem(
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'${DateFormat.yMMMd().format(date)}\n',
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TextStyle(
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color: Theme.of(context).colorScheme.onSurface,
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fontWeight: FontWeight.bold,
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),
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children: [
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TextSpan(
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text: 'checkInResultLevel$level'.tr(),
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style: TextStyle(
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color:
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Theme.of(context).colorScheme.onSurface,
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fontWeight: FontWeight.normal,
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),
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),
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],
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);
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}).toList();
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},
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),
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touchCallback: (
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FlTouchEvent event,
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LineTouchResponse? response,
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) {
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if (event is FlTapUpEvent &&
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response != null &&
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response.lineBarSpots != null &&
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response.lineBarSpots!.isNotEmpty) {
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final spot = response.lineBarSpots!.first;
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final date = DateTime.fromMillisecondsSinceEpoch(
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spot.x.toInt(),
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);
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onPointSelected?.call(date);
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}
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},
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),
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lineBarsData: [
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LineChartBarData(
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spots: spots,
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isCurved: true,
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color: Theme.of(context).colorScheme.primary,
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barWidth: 3,
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isStrokeCapRound: true,
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dotData: FlDotData(
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show: true,
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getDotPainter: (spot, percent, barData, index) {
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return FlDotCirclePainter(
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radius: 4,
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color: Theme.of(context).colorScheme.primary,
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strokeWidth: 2,
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strokeColor:
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Theme.of(context).colorScheme.surface,
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);
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},
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),
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belowBarData: BarAreaData(
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show: true,
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color: Theme.of(
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context,
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).colorScheme.primary.withOpacity(0.2),
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),
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),
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],
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),
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),
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);
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},
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (error, stack) => Center(child: Text('Error: $error')),
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),
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),
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],
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);
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if (constrainWidth) {
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return ConstrainedBox(
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constraints: BoxConstraints(maxWidth: maxWidth),
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child: Card(margin: EdgeInsets.all(16), child: content),
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).center();
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}
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return content;
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}
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/// Calculate an appropriate interval for date labels based on the date range
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double _calculateDateInterval(DateTime minDate, DateTime maxDate) {
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final difference = maxDate.difference(minDate).inDays;
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// If less than 7 days, show all days
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if (difference <= 7) {
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return 24 * 60 * 60 * 1000; // One day in milliseconds
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}
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// If less than a month, show every 3 days
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if (difference <= 30) {
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return 3 * 24 * 60 * 60 * 1000; // Three days in milliseconds
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}
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// If less than 3 months, show weekly
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if (difference <= 90) {
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return 7 * 24 * 60 * 60 * 1000; // One week in milliseconds
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}
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// Otherwise show every 2 weeks
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return 14 * 24 * 60 * 60 * 1000; // Two weeks in milliseconds
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}
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}
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