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CloudHome-Ops/lib/screens/device/device_group_page.dart

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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../models/org_node.dart';
import '../../models/store_info.dart';
import '../../services/device_service.dart';
import '../../services/org_service.dart';
/// 设备分组页:门店选择、分组列表、新增/编辑/删除。
class DeviceGroupPage extends ConsumerStatefulWidget {
const DeviceGroupPage({super.key});
@override
ConsumerState<DeviceGroupPage> createState() => _DeviceGroupPageState();
}
class _DeviceGroupPageState extends ConsumerState<DeviceGroupPage> {
final OrgService _orgService = OrgService();
final DeviceService _deviceService = DeviceService();
final _scrollController = ScrollController();
List<StoreInfo> _stores = [];
String? _selectedStoreId;
bool _loadingStores = true;
List<OrgNode> _items = [];
bool _loading = false;
bool _hasMore = true;
int _page = 1;
String? _error;
@override
void initState() {
super.initState();
_scrollController.addListener(_onScroll);
_loadStores();
}
@override
void dispose() {
_scrollController.removeListener(_onScroll);
_scrollController.dispose();
super.dispose();
}
void _onScroll() {
if (_scrollController.position.pixels >=
_scrollController.position.maxScrollExtent - 200) {
_loadMore();
}
}
Future<void> _loadStores() async {
try {
final stores = await _orgService.getMyStores();
if (!mounted) return;
setState(() {
_stores = stores;
_loadingStores = false;
if (stores.isNotEmpty) {
_selectedStoreId = stores.first.orgId;
}
});
if (_selectedStoreId != null) {
_loadData();
}
} catch (e) {
if (!mounted) return;
setState(() => _loadingStores = false);
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('门店列表加载失败:$e')),
);
}
}
Future<void> _loadData() async {
if (_selectedStoreId == null) return;
setState(() {
_loading = true;
_error = null;
_page = 1;
_hasMore = true;
});
try {
final items = await _deviceService.getDeviceGroupList(
page: 1,
limit: 20,
storeId: _selectedStoreId!,
);
if (!mounted) return;
setState(() {
_items = items;
_hasMore = items.length >= 20;
_loading = false;
});
} catch (e) {
if (!mounted) return;
setState(() {
_error = '$e';
_loading = false;
});
}
}
Future<void> _loadMore() async {
if (_loading || !_hasMore || _selectedStoreId == null) return;
setState(() => _loading = true);
try {
final items = await _deviceService.getDeviceGroupList(
page: _page + 1,
limit: 20,
storeId: _selectedStoreId!,
);
if (!mounted) return;
setState(() {
_page++;
_items.addAll(items);
_hasMore = items.length >= 20;
_loading = false;
});
} catch (e) {
if (!mounted) return;
setState(() => _loading = false);
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('加载更多失败:$e')),
);
}
}
Future<void> _deleteGroup(OrgNode group) async {
final confirmed = await showDialog<bool>(
context: context,
builder: (ctx) => AlertDialog(
title: const Text('删除分组'),
content: Text('确定要删除分组「${group.name}」吗?'),
actions: [
TextButton(
onPressed: () => Navigator.pop(ctx, false),
child: const Text('取消'),
),
TextButton(
onPressed: () => Navigator.pop(ctx, true),
style: TextButton.styleFrom(foregroundColor: Colors.red),
child: const Text('删除'),
),
],
),
);
if (confirmed != true) return;
try {
await _deviceService.deleteDeviceGroups([group.id]);
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('分组已删除')),
);
_loadData();
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('删除失败:$e')),
);
}
}
void _showAddEditSheet({OrgNode? group}) {
if (_selectedStoreId == null) return;
showModalBottomSheet(
useSafeArea: true,
context: context,
isScrollControlled: true,
builder: (ctx) => _GroupFormSheet(
deviceService: _deviceService,
storeId: _selectedStoreId!,
group: group,
onSaved: () {
Navigator.pop(ctx);
_loadData();
},
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
automaticallyImplyLeading: false,
title: const Text('设备分组'),
),
body: Column(
children: [
_buildStoreSelector(),
const Divider(height: 1),
Expanded(child: _buildBody()),
],
),
floatingActionButton: _selectedStoreId == null
? null
: FloatingActionButton(
onPressed: () => _showAddEditSheet(),
child: const Icon(Icons.add),
),
);
}
Widget _buildStoreSelector() {
if (_loadingStores) {
return const Padding(
padding: EdgeInsets.all(16),
child: Center(child: CircularProgressIndicator()),
);
}
if (_stores.isEmpty) {
return const Padding(
padding: EdgeInsets.all(16),
child: Text('暂无可选门店'),
);
}
return Padding(
padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
child: DropdownButtonFormField<String>(
value: _selectedStoreId,
decoration: const InputDecoration(
labelText: '选择门店',
border: OutlineInputBorder(),
prefixIcon: Icon(Icons.store),
),
items: _stores
.map((s) => DropdownMenuItem(
value: s.orgId,
child: Text(s.name),
))
.toList(),
onChanged: (v) {
setState(() => _selectedStoreId = v);
_loadData();
},
),
);
}
Widget _buildBody() {
if (_selectedStoreId == null) {
return const Center(child: Text('请先选择门店'));
}
if (_loading && _items.isEmpty) {
return const Center(child: CircularProgressIndicator());
}
if (_error != null && _items.isEmpty) {
return Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text('加载失败:$_error'),
const SizedBox(height: 8),
FilledButton.tonal(
onPressed: _loadData,
child: const Text('重试'),
),
],
),
);
}
if (_items.isEmpty) {
return RefreshIndicator(
onRefresh: _loadData,
child: ListView(
physics: const AlwaysScrollableScrollPhysics(),
children: const [
SizedBox(height: 200),
Center(child: Text('暂无分组数据')),
],
),
);
}
return RefreshIndicator(
onRefresh: _loadData,
child: ListView.builder(
controller: _scrollController,
physics: const AlwaysScrollableScrollPhysics(),
itemCount: _items.length + 1,
itemBuilder: (context, index) {
if (index == _items.length) {
return _loading
? const Padding(
padding: EdgeInsets.all(16),
child: Center(child: CircularProgressIndicator()),
)
: const SizedBox.shrink();
}
final group = _items[index];
return _GroupListTile(
group: group,
onEdit: () => _showAddEditSheet(group: group),
onDelete: () => _deleteGroup(group),
);
},
),
);
}
}
/// 分组列表项。
class _GroupListTile extends StatelessWidget {
const _GroupListTile({
required this.group,
required this.onEdit,
required this.onDelete,
});
final OrgNode group;
final VoidCallback onEdit;
final VoidCallback onDelete;
@override
Widget build(BuildContext context) {
return Card(
margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
child: ListTile(
leading: const CircleAvatar(
child: Icon(Icons.folder_outlined),
),
title: Text(group.name),
subtitle: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(height: 4),
if (group.address.isNotEmpty)
_line(Icons.location_on, group.address),
if (group.contactPhone.isNotEmpty)
_line(Icons.phone, group.contactPhone),
_line(Icons.tag, 'ID: ${group.id}'),
],
),
trailing: PopupMenuButton<String>(
onSelected: (value) {
if (value == 'edit') {
onEdit();
} else if (value == 'delete') {
onDelete();
}
},
itemBuilder: (ctx) => [
const PopupMenuItem(value: 'edit', child: Text('编辑')),
const PopupMenuItem(value: 'delete', child: Text('删除')),
],
),
),
);
}
Widget _line(IconData icon, String text) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 1),
child: Row(
children: [
Icon(icon, size: 14, color: Colors.grey),
const SizedBox(width: 4),
Expanded(child: Text(text, style: const TextStyle(fontSize: 13))),
],
),
);
}
}
/// 新增/编辑分组表单。
class _GroupFormSheet extends StatefulWidget {
const _GroupFormSheet({
required this.deviceService,
required this.storeId,
this.group,
required this.onSaved,
});
final DeviceService deviceService;
final String storeId;
final OrgNode? group;
final VoidCallback onSaved;
@override
State<_GroupFormSheet> createState() => _GroupFormSheetState();
}
class _GroupFormSheetState extends State<_GroupFormSheet> {
final _formKey = GlobalKey<FormState>();
final _nameController = TextEditingController();
bool _saving = false;
@override
void initState() {
super.initState();
if (widget.group != null) {
_nameController.text = widget.group!.name;
}
}
@override
void dispose() {
_nameController.dispose();
super.dispose();
}
Future<void> _save() async {
if (!_formKey.currentState!.validate()) return;
setState(() => _saving = true);
try {
final data = <String, dynamic>{
'name': _nameController.text.trim(),
'storeId': widget.storeId,
if (widget.group != null) 'id': widget.group!.id,
};
if (widget.group != null) {
await widget.deviceService.updateDeviceGroup(data);
} else {
await widget.deviceService.saveDeviceGroup(data);
}
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(widget.group != null ? '分组已更新' : '分组已创建'),
),
);
widget.onSaved();
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('保存失败:$e')),
);
} finally {
if (mounted) setState(() => _saving = false);
}
}
@override
Widget build(BuildContext context) {
final isEdit = widget.group != null;
return SingleChildScrollView(
padding: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom,
),
child: Container(
padding: const EdgeInsets.all(20),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text(
isEdit ? '编辑分组' : '新增分组',
style: Theme.of(context)
.textTheme
.titleLarge
?.copyWith(fontWeight: FontWeight.bold),
),
const SizedBox(height: 20),
TextFormField(
controller: _nameController,
decoration: const InputDecoration(
labelText: '分组名称',
border: OutlineInputBorder(),
prefixIcon: Icon(Icons.folder),
),
validator: (v) =>
v == null || v.trim().isEmpty ? '请输入分组名称' : null,
),
const SizedBox(height: 24),
SizedBox(
width: double.infinity,
child: FilledButton(
onPressed: _saving ? null : _save,
child: _saving
? const SizedBox(
height: 20,
width: 20,
child: CircularProgressIndicator(strokeWidth: 2),
)
: Text(isEdit ? '保存' : '创建'),
),
),
],
),
),
),
);
}
}