101 lines
3 KiB
Dart
101 lines
3 KiB
Dart
import "dart:async";
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import 'package:flutter/material.dart';
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import "package:photos/core/event_bus.dart";
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import "package:photos/events/memories_setting_changed.dart";
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import 'package:photos/models/memory.dart';
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import 'package:photos/services/memories_service.dart';
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import "package:photos/ui/home/memories/memory_cover_widget.dart";
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class MemoriesWidget extends StatefulWidget {
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const MemoriesWidget({Key? key}) : super(key: key);
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@override
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State<MemoriesWidget> createState() => _MemoriesWidgetState();
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}
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class _MemoriesWidgetState extends State<MemoriesWidget> {
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late StreamSubscription<MemoriesSettingChanged> _subscription;
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@override
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void initState() {
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super.initState();
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_subscription = Bus.instance.on<MemoriesSettingChanged>().listen((event) {
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if (mounted) {
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setState(() {});
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}
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});
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}
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@override
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void dispose() {
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_subscription.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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if (!MemoriesService.instance.showMemories) {
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return const SizedBox.shrink();
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}
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return FutureBuilder<List<Memory>>(
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future: MemoriesService.instance.getMemories(),
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builder: (context, snapshot) {
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if (snapshot.hasError || !snapshot.hasData || snapshot.data!.isEmpty) {
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return const SizedBox.shrink();
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} else {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_buildMemories(snapshot.data!),
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const Divider(),
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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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Widget _buildMemories(List<Memory> memories) {
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final collatedMemories = _collateMemories(memories);
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final List<Widget> memoryWidgets = [];
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for (final memories in collatedMemories) {
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memoryWidgets.add(MemoryCovertWidget(memories: memories));
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}
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return SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: memoryWidgets,
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),
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);
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}
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List<List<Memory>> _collateMemories(List<Memory> memories) {
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final List<Memory> yearlyMemories = [];
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final List<List<Memory>> collatedMemories = [];
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for (int index = 0; index < memories.length; index++) {
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if (index > 0 &&
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!_areMemoriesFromSameYear(memories[index - 1], memories[index])) {
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final List<Memory> collatedYearlyMemories = [];
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collatedYearlyMemories.addAll(yearlyMemories);
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collatedMemories.add(collatedYearlyMemories);
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yearlyMemories.clear();
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}
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yearlyMemories.add(memories[index]);
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}
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if (yearlyMemories.isNotEmpty) {
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collatedMemories.add(yearlyMemories);
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}
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return collatedMemories.reversed.toList();
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}
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bool _areMemoriesFromSameYear(Memory first, Memory second) {
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final firstDate =
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DateTime.fromMicrosecondsSinceEpoch(first.file.creationTime!);
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final secondDate =
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DateTime.fromMicrosecondsSinceEpoch(second.file.creationTime!);
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return firstDate.year == secondDate.year;
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}
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}
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