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