152 lines
4.5 KiB
Dart
152 lines
4.5 KiB
Dart
/// Named shopping lists of things to buy.
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library;
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import 'package:flutter/material.dart';
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import 'models/shopping_list.dart';
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import 'services/product_repository.dart';
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import 'shopping_list_detail_screen.dart';
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import 'widgets/confirm_dialog.dart';
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import 'widgets/name_dialog.dart';
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import 'widgets/settings_button.dart';
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class ShoppingListsScreen extends StatefulWidget {
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const ShoppingListsScreen({super.key, required this.repository});
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final ProductRepository repository;
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@override
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State<ShoppingListsScreen> createState() => _ShoppingListsScreenState();
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}
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class _ShoppingListsScreenState extends State<ShoppingListsScreen> {
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late Future<List<ShoppingList>> _future;
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bool _editing = false;
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@override
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void initState() {
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super.initState();
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_future = widget.repository.getShoppingLists();
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}
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void _reload() {
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setState(() => _future = widget.repository.getShoppingLists());
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}
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Future<void> _create() async {
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final name = await showNameDialog(
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context,
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title: 'New shopping list',
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label: 'List name',
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confirmLabel: 'Create',
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);
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if (name == null || !mounted) return;
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final id = await widget.repository.createShoppingList(name);
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if (!mounted) return;
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await _openList(id);
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}
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Future<void> _openList(int id) async {
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await Navigator.of(context).push<void>(
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MaterialPageRoute(
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builder: (_) =>
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ShoppingListDetailScreen(repository: widget.repository, listId: id),
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),
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);
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if (mounted) _reload();
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}
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Future<void> _removeList(ShoppingList list) async {
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final confirmed = await confirmAction(
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context,
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title: 'Delete shopping list?',
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message: '"${list.name}" and its items will be deleted.',
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);
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if (!confirmed || !mounted) return;
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await widget.repository.deleteShoppingList(list.id);
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if (mounted) _reload();
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Scaffold(
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appBar: AppBar(
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title: const Text('Shopping lists'),
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actions: [
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IconButton(
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tooltip: _editing ? 'Done' : 'Edit',
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onPressed: () => setState(() => _editing = !_editing),
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icon: Icon(_editing ? Icons.check : Icons.edit_outlined),
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),
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const SettingsButton(),
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],
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _create,
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tooltip: 'New list',
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child: const Icon(Icons.add),
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),
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body: FutureBuilder<List<ShoppingList>>(
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future: _future,
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builder: (context, snapshot) {
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if (snapshot.hasError) {
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return Center(
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child: Text(
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'Could not load shopping lists.',
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style: theme.textTheme.bodyLarge,
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),
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);
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}
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if (!snapshot.hasData) {
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return const Center(child: CircularProgressIndicator());
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}
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final lists = snapshot.data!;
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if (lists.isEmpty) {
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return Center(
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child: Text(
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'Create a list for your next shop.',
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textAlign: TextAlign.center,
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style: theme.textTheme.bodyLarge,
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),
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);
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}
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return ListView.separated(
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padding: const EdgeInsets.fromLTRB(8, 8, 8, 88),
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itemCount: lists.length,
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separatorBuilder: (_, _) => const SizedBox(height: 4),
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itemBuilder: (context, index) {
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final list = lists[index];
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final remaining = list.itemCount - list.checkedCount;
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return ListTile(
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leading: CircleAvatar(child: Text('${list.itemCount}')),
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title: Text(list.name),
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subtitle: Text(
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list.itemCount == 0
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? 'Empty'
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: remaining == 0
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? 'All done'
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: remaining == 1
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? '1 item left'
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: '$remaining items left',
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),
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trailing: _editing
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? IconButton(
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tooltip: 'Delete',
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onPressed: () => _removeList(list),
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icon: const Icon(Icons.delete_outline),
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)
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: const Icon(Icons.chevron_right),
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onTap: _editing ? null : () => _openList(list.id),
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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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}
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