Формы создания/редактирования зон, устройств и правил автоматизации

ZoneFormScreen/DeviceFormScreen/AutomationRuleFormScreen — одна форма
на создание и редактирование, показ ошибок валидации Laravel (422)
по полям. Списки зон/устройств/правил дополнены FAB "добавить",
свайпом/меню удаления и переходом в форму по тапу — всё только для
owner (RBAC), viewer видит те же списки в режиме только чтения.
Опции дропдаунов (типы устройств, датчики/актуаторы, capabilities)
берутся из данных бэкенда, не хардкодятся.

lib/screens/automation_rule_form_screen.dart

@@ -0,0 +1,262 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_client.dart';
+import '../core/api_service.dart';
+import '../models/automation_rule.dart';
+import '../models/device.dart';
+import '../models/device_type.dart';
+import '../models/zone.dart';
+
+const _operators = ['>', '<', '>=', '<=', '=', '!='];
+
+/// Create/edit automation rule form. Pass an existing [rule] to edit it in
+/// place; omit it to create a new one. Pops with `true` on success.
+///
+/// Dropdown options (sensor/actuator devices, sensor types, action types)
+/// are all derived from the backend's device/device-type data, never
+/// hardcoded — a new device_type with new capabilities shows up here
+/// automatically, per the platform's "don't hardcode the domain" rule.
+class AutomationRuleFormScreen extends StatefulWidget {
+  const AutomationRuleFormScreen({super.key, this.rule});
+
+  final AutomationRule? rule;
+
+  bool get isEditing => rule != null;
+
+  @override
+  State<AutomationRuleFormScreen> createState() => _AutomationRuleFormScreenState();
+}
+
+class _AutomationRuleFormScreenState extends State<AutomationRuleFormScreen> {
+  final _formKey = GlobalKey<FormState>();
+  late final _conditionValueController =
+      TextEditingController(text: widget.rule?.conditionValue.toString());
+  late final _levelController = TextEditingController(text: widget.rule?.level?.toString());
+
+  late Future<(List<Zone>, List<Device>, List<DeviceType>)> _optionsFuture;
+
+  int? _zoneId;
+  int? _targetDeviceId;
+  int? _conditionSourceDeviceId;
+  String? _conditionSensorType;
+  late String _conditionOperator;
+  String? _actionType;
+  late bool _isActive;
+
+  bool _isSubmitting = false;
+  Map<String, List<String>> _fieldErrors = {};
+
+  @override
+  void initState() {
+    super.initState();
+    _zoneId = widget.rule?.zone?.id;
+    _targetDeviceId = widget.rule?.targetDevice?.id;
+    _conditionSourceDeviceId = widget.rule?.conditionSourceDevice?.id;
+    _conditionSensorType = widget.rule?.conditionSensorType;
+    _conditionOperator = widget.rule?.conditionOperator ?? _operators.first;
+    _actionType = widget.rule?.actionType;
+    _isActive = widget.rule?.isActive ?? true;
+
+    final apiService = context.read<ApiService>();
+    _optionsFuture = (apiService.zones(), apiService.devices(), apiService.deviceTypes()).wait;
+  }
+
+  @override
+  void dispose() {
+    _conditionValueController.dispose();
+    _levelController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _submit() async {
+    if (!_formKey.currentState!.validate()) return;
+
+    final missing = <String, List<String>>{
+      if (_zoneId == null) 'zone_id': ['Выберите зону'],
+      if (_targetDeviceId == null) 'target_device_id': ['Выберите целевое устройство'],
+      if (_conditionSourceDeviceId == null) 'condition_source_device_id': ['Выберите датчик'],
+      if (_conditionSensorType == null) 'condition_sensor_type': ['Выберите тип показания'],
+      if (_actionType == null) 'action_type': ['Выберите действие'],
+    };
+    if (missing.isNotEmpty) {
+      setState(() => _fieldErrors = missing);
+      return;
+    }
+
+    setState(() {
+      _isSubmitting = true;
+      _fieldErrors = {};
+    });
+
+    final payload = <String, dynamic>{
+      'zone_id': _zoneId,
+      'target_device_id': _targetDeviceId,
+      'condition_source_device_id': _conditionSourceDeviceId,
+      'condition_sensor_type': _conditionSensorType,
+      'condition_operator': _conditionOperator,
+      'condition_value': double.parse(_conditionValueController.text),
+      'action_type': _actionType,
+      'is_active': _isActive,
+      if (_actionType == 'set_level') 'level': double.parse(_levelController.text),
+    };
+
+    final apiService = context.read<ApiService>();
+
+    try {
+      if (widget.isEditing) {
+        await apiService.updateAutomationRule(widget.rule!.id, payload);
+      } else {
+        await apiService.createAutomationRule(payload);
+      }
+      if (mounted) Navigator.of(context).pop(true);
+    } on ApiException catch (e) {
+      setState(() => _fieldErrors = e.errors ?? {});
+      if (e.errors == null && mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(e.message)));
+      }
+    } finally {
+      if (mounted) setState(() => _isSubmitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text(widget.isEditing ? 'Редактировать правило' : 'Новое правило')),
+      body: FutureBuilder<(List<Zone>, List<Device>, List<DeviceType>)>(
+        future: _optionsFuture,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+            return Center(child: Text('${snapshot.error}'));
+          }
+
+          final (zones, devices, deviceTypes) = snapshot.data!;
+          final sensorDevices = devices.where((d) => d.deviceType?.isSensor ?? false).toList();
+          final actuatorDevices = devices.where((d) => d.deviceType?.isActuator ?? false).toList();
+          final sensorTypeOptions = deviceTypes
+              .where((t) => t.isSensor)
+              .expand((t) => t.capabilities)
+              .toSet()
+              .toList()
+            ..sort();
+          final actionTypeOptions = deviceTypes
+              .where((t) => t.isActuator)
+              .expand((t) => t.capabilities)
+              .toSet()
+              .toList()
+            ..sort();
+
+          return Form(
+            key: _formKey,
+            child: ListView(
+              padding: const EdgeInsets.all(16),
+              children: [
+                DropdownButtonFormField<int>(
+                  initialValue: _zoneId,
+                  decoration: InputDecoration(labelText: 'Зона', errorText: _fieldErrors['zone_id']?.first),
+                  items: zones.map((z) => DropdownMenuItem(value: z.id, child: Text(z.name))).toList(),
+                  onChanged: (value) => setState(() => _zoneId = value),
+                ),
+                const SizedBox(height: 24),
+                Text('ЕСЛИ', style: Theme.of(context).textTheme.titleSmall),
+                const SizedBox(height: 8),
+                DropdownButtonFormField<int>(
+                  initialValue: _conditionSourceDeviceId,
+                  decoration: InputDecoration(
+                    labelText: 'Датчик',
+                    errorText: _fieldErrors['condition_source_device_id']?.first,
+                  ),
+                  items: sensorDevices.map((d) => DropdownMenuItem(value: d.id, child: Text(d.name))).toList(),
+                  onChanged: (value) => setState(() => _conditionSourceDeviceId = value),
+                ),
+                const SizedBox(height: 16),
+                DropdownButtonFormField<String>(
+                  initialValue: _conditionSensorType,
+                  decoration: InputDecoration(
+                    labelText: 'Тип показания',
+                    errorText: _fieldErrors['condition_sensor_type']?.first,
+                  ),
+                  items: sensorTypeOptions.map((s) => DropdownMenuItem(value: s, child: Text(s))).toList(),
+                  onChanged: (value) => setState(() => _conditionSensorType = value),
+                ),
+                const SizedBox(height: 16),
+                Row(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Expanded(
+                      child: DropdownButtonFormField<String>(
+                        initialValue: _conditionOperator,
+                        decoration: const InputDecoration(labelText: 'Оператор'),
+                        items: _operators.map((op) => DropdownMenuItem(value: op, child: Text(op))).toList(),
+                        onChanged: (value) => setState(() => _conditionOperator = value!),
+                      ),
+                    ),
+                    const SizedBox(width: 12),
+                    Expanded(
+                      child: TextFormField(
+                        controller: _conditionValueController,
+                        decoration: const InputDecoration(labelText: 'Значение'),
+                        keyboardType: const TextInputType.numberWithOptions(decimal: true),
+                        validator: (value) =>
+                            (value == null || double.tryParse(value) == null) ? 'Введите число' : null,
+                      ),
+                    ),
+                  ],
+                ),
+                const SizedBox(height: 24),
+                Text('ТО', style: Theme.of(context).textTheme.titleSmall),
+                const SizedBox(height: 8),
+                DropdownButtonFormField<String>(
+                  initialValue: _actionType,
+                  decoration:
+                      InputDecoration(labelText: 'Действие', errorText: _fieldErrors['action_type']?.first),
+                  items: actionTypeOptions.map((a) => DropdownMenuItem(value: a, child: Text(a))).toList(),
+                  onChanged: (value) => setState(() => _actionType = value),
+                ),
+                if (_actionType == 'set_level') ...[
+                  const SizedBox(height: 16),
+                  TextFormField(
+                    controller: _levelController,
+                    decoration: const InputDecoration(labelText: 'Уровень'),
+                    keyboardType: const TextInputType.numberWithOptions(decimal: true),
+                    validator: (value) => (_actionType == 'set_level' && double.tryParse(value ?? '') == null)
+                        ? 'Введите число'
+                        : null,
+                  ),
+                ],
+                const SizedBox(height: 16),
+                DropdownButtonFormField<int>(
+                  initialValue: _targetDeviceId,
+                  decoration: InputDecoration(
+                    labelText: 'Целевое устройство',
+                    errorText: _fieldErrors['target_device_id']?.first,
+                  ),
+                  items: actuatorDevices.map((d) => DropdownMenuItem(value: d.id, child: Text(d.name))).toList(),
+                  onChanged: (value) => setState(() => _targetDeviceId = value),
+                ),
+                const SizedBox(height: 16),
+                SwitchListTile(
+                  contentPadding: EdgeInsets.zero,
+                  title: const Text('Активно'),
+                  value: _isActive,
+                  onChanged: (value) => setState(() => _isActive = value),
+                ),
+                const SizedBox(height: 24),
+                FilledButton(
+                  onPressed: _isSubmitting ? null : _submit,
+                  child: _isSubmitting
+                      ? const SizedBox(height: 20, width: 20, child: CircularProgressIndicator(strokeWidth: 2))
+                      : Text(widget.isEditing ? 'Сохранить' : 'Создать'),
+                ),
+              ],
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/screens/automation_rules_tab.dart

@@ -2,7 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import '../core/api_service.dart';
+import '../core/auth_service.dart';
 import '../models/automation_rule.dart';
+import 'automation_rule_form_screen.dart';
 
 class AutomationRulesTab extends StatefulWidget {
   const AutomationRulesTab({super.key});
@@ -28,63 +30,116 @@ class _AutomationRulesTabState extends State<AutomationRulesTab> {
     await future;
   }
 
+  Future<void> _openForm({AutomationRule? rule}) async {
+    final saved = await Navigator.of(context).push<bool>(
+      MaterialPageRoute(builder: (_) => AutomationRuleFormScreen(rule: rule)),
+    );
+    if (saved == true) _refresh();
+  }
+
+  Future<bool> _confirmDelete(AutomationRule rule) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Удалить правило?'),
+        content: const Text('Правило будет удалено без возможности восстановления.'),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('Отмена')),
+          TextButton(onPressed: () => Navigator.pop(context, true), child: const Text('Удалить')),
+        ],
+      ),
+    );
+    if (confirmed != true || !mounted) return false;
+
+    try {
+      await context.read<ApiService>().deleteAutomationRule(rule.id);
+      return true;
+    } catch (e) {
+      if (mounted) ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('$e')));
+      return false;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
-    return RefreshIndicator(
-      onRefresh: _refresh,
-      child: FutureBuilder<List<AutomationRule>>(
-        future: _future,
-        builder: (context, snapshot) {
-          if (snapshot.connectionState != ConnectionState.done) {
-            return const Center(child: CircularProgressIndicator());
-          }
-          if (snapshot.hasError) {
-            return ListView(
-              physics: const AlwaysScrollableScrollPhysics(),
-              children: [
-                Padding(
-                  padding: const EdgeInsets.all(24),
-                  child: Text('${snapshot.error}', textAlign: TextAlign.center),
-                ),
-              ],
-            );
-          }
+    final isOwner = context.watch<AuthService>().user?.isOwner ?? false;
 
-          final rules = snapshot.data!;
-          if (rules.isEmpty) {
-            return ListView(
-              physics: const AlwaysScrollableScrollPhysics(),
-              children: const [
-                Padding(
-                  padding: EdgeInsets.all(24),
-                  child: Text('Правил пока нет.', textAlign: TextAlign.center),
-                ),
-              ],
-            );
-          }
-
-          return ListView.separated(
-            physics: const AlwaysScrollableScrollPhysics(),
-            itemCount: rules.length,
-            separatorBuilder: (context, index) => const Divider(height: 1),
-            itemBuilder: (context, index) {
-              final rule = rules[index];
-              final condition =
-                  '${rule.conditionSourceDevice?.name ?? '?'}: ${rule.conditionSensorType} ${rule.conditionOperator} ${rule.conditionValue}';
-              final action = rule.level != null
-                  ? '${rule.actionType} (${rule.level}) → ${rule.targetDevice?.name ?? '?'}'
-                  : '${rule.actionType} → ${rule.targetDevice?.name ?? '?'}';
-
-              return ListTile(
-                leading: Icon(rule.isActive ? Icons.bolt : Icons.bolt_outlined),
-                title: Text('ЕСЛИ $condition'),
-                subtitle: Text('ТО $action'),
-                isThreeLine: true,
+    return Scaffold(
+      body: RefreshIndicator(
+        onRefresh: _refresh,
+        child: FutureBuilder<List<AutomationRule>>(
+          future: _future,
+          builder: (context, snapshot) {
+            if (snapshot.connectionState != ConnectionState.done) {
+              return const Center(child: CircularProgressIndicator());
+            }
+            if (snapshot.hasError) {
+              return ListView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.all(24),
+                    child: Text('${snapshot.error}', textAlign: TextAlign.center),
+                  ),
+                ],
               );
-            },
-          );
-        },
+            }
+
+            final rules = snapshot.data!;
+            if (rules.isEmpty) {
+              return ListView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                children: const [
+                  Padding(
+                    padding: EdgeInsets.all(24),
+                    child: Text('Правил пока нет.', textAlign: TextAlign.center),
+                  ),
+                ],
+              );
+            }
+
+            return ListView.separated(
+              physics: const AlwaysScrollableScrollPhysics(),
+              itemCount: rules.length,
+              separatorBuilder: (context, index) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final rule = rules[index];
+                final condition =
+                    '${rule.conditionSourceDevice?.name ?? '?'}: ${rule.conditionSensorType} ${rule.conditionOperator} ${rule.conditionValue}';
+                final action = rule.level != null
+                    ? '${rule.actionType} (${rule.level}) → ${rule.targetDevice?.name ?? '?'}'
+                    : '${rule.actionType} → ${rule.targetDevice?.name ?? '?'}';
+
+                final tile = ListTile(
+                  leading: Icon(rule.isActive ? Icons.bolt : Icons.bolt_outlined),
+                  title: Text('ЕСЛИ $condition'),
+                  subtitle: Text('ТО $action'),
+                  isThreeLine: true,
+                  onTap: isOwner ? () => _openForm(rule: rule) : null,
+                );
+
+                if (!isOwner) return tile;
+
+                return Dismissible(
+                  key: ValueKey(rule.id),
+                  direction: DismissDirection.endToStart,
+                  background: Container(
+                    color: Theme.of(context).colorScheme.error,
+                    alignment: Alignment.centerRight,
+                    padding: const EdgeInsets.symmetric(horizontal: 20),
+                    child: const Icon(Icons.delete, color: Colors.white),
+                  ),
+                  confirmDismiss: (_) => _confirmDelete(rule),
+                  child: tile,
+                );
+              },
+            );
+          },
+        ),
       ),
+      floatingActionButton: isOwner
+          ? FloatingActionButton(onPressed: () => _openForm(), child: const Icon(Icons.add))
+          : null,
     );
   }
 }

lib/screens/device_form_screen.dart

@@ -0,0 +1,175 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_client.dart';
+import '../core/api_service.dart';
+import '../models/device.dart';
+import '../models/device_type.dart';
+import '../models/zone.dart';
+
+/// Create/edit device form. Pass an existing [device] to edit it in place;
+/// omit it to create a new one. Pops with `true` on success.
+class DeviceFormScreen extends StatefulWidget {
+  const DeviceFormScreen({super.key, this.device});
+
+  final Device? device;
+
+  bool get isEditing => device != null;
+
+  @override
+  State<DeviceFormScreen> createState() => _DeviceFormScreenState();
+}
+
+class _DeviceFormScreenState extends State<DeviceFormScreen> {
+  final _formKey = GlobalKey<FormState>();
+  late final _nameController = TextEditingController(text: widget.device?.name);
+  late final _externalIdController = TextEditingController(text: widget.device?.externalId);
+  late final _protocolController = TextEditingController(text: widget.device?.protocol ?? 'mqtt');
+
+  late Future<(List<Zone>, List<DeviceType>)> _optionsFuture;
+  int? _zoneId;
+  int? _deviceTypeId;
+
+  bool _isSubmitting = false;
+  Map<String, List<String>> _fieldErrors = {};
+
+  @override
+  void initState() {
+    super.initState();
+    _zoneId = widget.device?.zone?.id;
+    _deviceTypeId = widget.device?.deviceType?.id;
+    final apiService = context.read<ApiService>();
+    _optionsFuture = (apiService.zones(), apiService.deviceTypes()).wait;
+  }
+
+  @override
+  void dispose() {
+    _nameController.dispose();
+    _externalIdController.dispose();
+    _protocolController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _submit() async {
+    if (!_formKey.currentState!.validate()) return;
+    if (_zoneId == null || _deviceTypeId == null) {
+      setState(() => _fieldErrors = {
+            if (_zoneId == null) 'zone_id': ['Выберите зону'],
+            if (_deviceTypeId == null) 'device_type_id': ['Выберите тип устройства'],
+          });
+      return;
+    }
+
+    setState(() {
+      _isSubmitting = true;
+      _fieldErrors = {};
+    });
+
+    final apiService = context.read<ApiService>();
+    final name = _nameController.text.trim();
+    final externalId = _externalIdController.text.trim();
+    final protocol = _protocolController.text.trim().isEmpty ? 'mqtt' : _protocolController.text.trim();
+
+    try {
+      if (widget.isEditing) {
+        await apiService.updateDevice(
+          widget.device!.id,
+          zoneId: _zoneId!,
+          deviceTypeId: _deviceTypeId!,
+          name: name,
+          externalId: externalId,
+          protocol: protocol,
+        );
+      } else {
+        await apiService.createDevice(
+          zoneId: _zoneId!,
+          deviceTypeId: _deviceTypeId!,
+          name: name,
+          externalId: externalId,
+          protocol: protocol,
+        );
+      }
+      if (mounted) Navigator.of(context).pop(true);
+    } on ApiException catch (e) {
+      setState(() => _fieldErrors = e.errors ?? {});
+      if (e.errors == null && mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(e.message)));
+      }
+    } finally {
+      if (mounted) setState(() => _isSubmitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text(widget.isEditing ? 'Редактировать устройство' : 'Новое устройство')),
+      body: FutureBuilder<(List<Zone>, List<DeviceType>)>(
+        future: _optionsFuture,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          if (snapshot.hasError) {
+            return Center(child: Text('${snapshot.error}'));
+          }
+
+          final (zones, deviceTypes) = snapshot.data!;
+
+          return Form(
+            key: _formKey,
+            child: ListView(
+              padding: const EdgeInsets.all(16),
+              children: [
+                DropdownButtonFormField<int>(
+                  initialValue: _zoneId,
+                  decoration: InputDecoration(labelText: 'Зона', errorText: _fieldErrors['zone_id']?.first),
+                  items: zones.map((z) => DropdownMenuItem(value: z.id, child: Text(z.name))).toList(),
+                  onChanged: (value) => setState(() => _zoneId = value),
+                ),
+                const SizedBox(height: 16),
+                DropdownButtonFormField<int>(
+                  initialValue: _deviceTypeId,
+                  decoration:
+                      InputDecoration(labelText: 'Тип устройства', errorText: _fieldErrors['device_type_id']?.first),
+                  items: deviceTypes
+                      .map((t) => DropdownMenuItem(value: t.id, child: Text('${t.code} (${t.category})')))
+                      .toList(),
+                  onChanged: (value) => setState(() => _deviceTypeId = value),
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _nameController,
+                  decoration: InputDecoration(labelText: 'Название', errorText: _fieldErrors['name']?.first),
+                  validator: (value) => (value == null || value.trim().isEmpty) ? 'Введите название' : null,
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _externalIdController,
+                  decoration: InputDecoration(
+                    labelText: 'External ID',
+                    helperText: 'Идентификатор физического устройства (ESP32 chip id и т.п.)',
+                    errorText: _fieldErrors['external_id']?.first,
+                  ),
+                  validator: (value) => (value == null || value.trim().isEmpty) ? 'Введите external_id' : null,
+                ),
+                const SizedBox(height: 16),
+                TextFormField(
+                  controller: _protocolController,
+                  decoration: InputDecoration(labelText: 'Протокол', errorText: _fieldErrors['protocol']?.first),
+                ),
+                const SizedBox(height: 24),
+                FilledButton(
+                  onPressed: _isSubmitting ? null : _submit,
+                  child: _isSubmitting
+                      ? const SizedBox(height: 20, width: 20, child: CircularProgressIndicator(strokeWidth: 2))
+                      : Text(widget.isEditing ? 'Сохранить' : 'Создать'),
+                ),
+              ],
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/screens/devices_tab.dart

@@ -2,9 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import '../core/api_service.dart';
+import '../core/auth_service.dart';
 import '../models/device.dart';
 import '../widgets/status_badge.dart';
 import 'device_detail_screen.dart';
+import 'device_form_screen.dart';
 
 class DevicesTab extends StatefulWidget {
   const DevicesTab({super.key});
@@ -30,43 +32,95 @@ class _DevicesTabState extends State<DevicesTab> {
     await future;
   }
 
+  Future<void> _openForm({Device? device}) async {
+    final saved = await Navigator.of(context).push<bool>(
+      MaterialPageRoute(builder: (_) => DeviceFormScreen(device: device)),
+    );
+    if (saved == true) _refresh();
+  }
+
+  Future<void> _delete(Device device) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Удалить устройство?'),
+        content: Text('«${device.name}» будет удалено без возможности восстановления.'),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('Отмена')),
+          TextButton(onPressed: () => Navigator.pop(context, true), child: const Text('Удалить')),
+        ],
+      ),
+    );
+    if (confirmed != true || !mounted) return;
+
+    try {
+      await context.read<ApiService>().deleteDevice(device.id);
+      _refresh();
+    } catch (e) {
+      if (mounted) ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('$e')));
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
-    return RefreshIndicator(
-      onRefresh: _refresh,
-      child: FutureBuilder<List<Device>>(
-        future: _future,
-        builder: (context, snapshot) {
-          if (snapshot.connectionState != ConnectionState.done) {
-            return const Center(child: CircularProgressIndicator());
-          }
-          if (snapshot.hasError) {
-            return _ErrorList(message: '${snapshot.error}', onRetry: _refresh);
-          }
+    final isOwner = context.watch<AuthService>().user?.isOwner ?? false;
 
-          final devices = snapshot.data!;
-          if (devices.isEmpty) {
-            return _ErrorList(message: 'Устройств пока нет.', onRetry: _refresh);
-          }
+    return Scaffold(
+      body: RefreshIndicator(
+        onRefresh: _refresh,
+        child: FutureBuilder<List<Device>>(
+          future: _future,
+          builder: (context, snapshot) {
+            if (snapshot.connectionState != ConnectionState.done) {
+              return const Center(child: CircularProgressIndicator());
+            }
+            if (snapshot.hasError) {
+              return _ErrorList(message: '${snapshot.error}', onRetry: _refresh);
+            }
 
-          return ListView.separated(
-            physics: const AlwaysScrollableScrollPhysics(),
-            itemCount: devices.length,
-            separatorBuilder: (context, index) => const Divider(height: 1),
-            itemBuilder: (context, index) {
-              final device = devices[index];
-              return ListTile(
-                title: Text(device.name),
-                subtitle: Text('${device.zone?.name ?? '—'} · ${device.deviceType?.code ?? device.protocol}'),
-                trailing: StatusBadge(status: device.status),
-                onTap: () => Navigator.of(context).push(
-                  MaterialPageRoute(builder: (_) => DeviceDetailScreen(deviceId: device.id)),
-                ),
-              );
-            },
-          );
-        },
+            final devices = snapshot.data!;
+            if (devices.isEmpty) {
+              return _ErrorList(message: 'Устройств пока нет.', onRetry: _refresh);
+            }
+
+            return ListView.separated(
+              physics: const AlwaysScrollableScrollPhysics(),
+              itemCount: devices.length,
+              separatorBuilder: (context, index) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final device = devices[index];
+                return ListTile(
+                  title: Text(device.name),
+                  subtitle: Text('${device.zone?.name ?? '—'} · ${device.deviceType?.code ?? device.protocol}'),
+                  trailing: Row(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      StatusBadge(status: device.status),
+                      if (isOwner)
+                        PopupMenuButton<String>(
+                          onSelected: (value) {
+                            if (value == 'edit') _openForm(device: device);
+                            if (value == 'delete') _delete(device);
+                          },
+                          itemBuilder: (context) => const [
+                            PopupMenuItem(value: 'edit', child: Text('Редактировать')),
+                            PopupMenuItem(value: 'delete', child: Text('Удалить')),
+                          ],
+                        ),
+                    ],
+                  ),
+                  onTap: () => Navigator.of(context).push(
+                    MaterialPageRoute(builder: (_) => DeviceDetailScreen(deviceId: device.id)),
+                  ),
+                );
+              },
+            );
+          },
+        ),
       ),
+      floatingActionButton: isOwner
+          ? FloatingActionButton(onPressed: () => _openForm(), child: const Icon(Icons.add))
+          : null,
     );
   }
 }

lib/screens/zone_form_screen.dart

@@ -0,0 +1,98 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+import '../core/api_client.dart';
+import '../core/api_service.dart';
+import '../models/zone.dart';
+
+/// Create/edit zone form. Pass an existing [zone] to edit it in place;
+/// omit it to create a new one. Pops with `true` on success so the caller
+/// knows to refresh its list.
+class ZoneFormScreen extends StatefulWidget {
+  const ZoneFormScreen({super.key, this.zone});
+
+  final Zone? zone;
+
+  bool get isEditing => zone != null;
+
+  @override
+  State<ZoneFormScreen> createState() => _ZoneFormScreenState();
+}
+
+class _ZoneFormScreenState extends State<ZoneFormScreen> {
+  final _formKey = GlobalKey<FormState>();
+  late final _nameController = TextEditingController(text: widget.zone?.name);
+  late final _descriptionController = TextEditingController(text: widget.zone?.description);
+
+  bool _isSubmitting = false;
+  Map<String, List<String>> _fieldErrors = {};
+
+  @override
+  void dispose() {
+    _nameController.dispose();
+    _descriptionController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _submit() async {
+    if (!_formKey.currentState!.validate()) return;
+
+    setState(() {
+      _isSubmitting = true;
+      _fieldErrors = {};
+    });
+
+    final apiService = context.read<ApiService>();
+    final name = _nameController.text.trim();
+    final description = _descriptionController.text.trim();
+
+    try {
+      if (widget.isEditing) {
+        await apiService.updateZone(widget.zone!.id, name: name, description: description);
+      } else {
+        await apiService.createZone(name: name, description: description);
+      }
+      if (mounted) Navigator.of(context).pop(true);
+    } on ApiException catch (e) {
+      setState(() => _fieldErrors = e.errors ?? {});
+      if (e.errors == null && mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(e.message)));
+      }
+    } finally {
+      if (mounted) setState(() => _isSubmitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text(widget.isEditing ? 'Редактировать зону' : 'Новая зона')),
+      body: Form(
+        key: _formKey,
+        child: ListView(
+          padding: const EdgeInsets.all(16),
+          children: [
+            TextFormField(
+              controller: _nameController,
+              decoration: InputDecoration(labelText: 'Название', errorText: _fieldErrors['name']?.first),
+              validator: (value) => (value == null || value.trim().isEmpty) ? 'Введите название' : null,
+            ),
+            const SizedBox(height: 16),
+            TextFormField(
+              controller: _descriptionController,
+              decoration: InputDecoration(labelText: 'Описание', errorText: _fieldErrors['description']?.first),
+              maxLines: 3,
+            ),
+            const SizedBox(height: 24),
+            FilledButton(
+              onPressed: _isSubmitting ? null : _submit,
+              child: _isSubmitting
+                  ? const SizedBox(height: 20, width: 20, child: CircularProgressIndicator(strokeWidth: 2))
+                  : Text(widget.isEditing ? 'Сохранить' : 'Создать'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/zones_tab.dart

@@ -2,7 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import '../core/api_service.dart';
+import '../core/auth_service.dart';
 import '../models/zone.dart';
+import 'zone_form_screen.dart';
 
 class ZonesTab extends StatefulWidget {
   const ZonesTab({super.key});
@@ -28,44 +30,97 @@ class _ZonesTabState extends State<ZonesTab> {
     await future;
   }
 
+  Future<void> _openForm({Zone? zone}) async {
+    final saved = await Navigator.of(context).push<bool>(
+      MaterialPageRoute(builder: (_) => ZoneFormScreen(zone: zone)),
+    );
+    if (saved == true) _refresh();
+  }
+
+  Future<bool> _confirmDelete(Zone zone) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Удалить зону?'),
+        content: Text('«${zone.name}» будет удалена без возможности восстановления.'),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(context, false), child: const Text('Отмена')),
+          TextButton(onPressed: () => Navigator.pop(context, true), child: const Text('Удалить')),
+        ],
+      ),
+    );
+    if (confirmed != true || !mounted) return false;
+
+    try {
+      await context.read<ApiService>().deleteZone(zone.id);
+      return true;
+    } catch (e) {
+      if (mounted) ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('$e')));
+      return false;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
-    return RefreshIndicator(
-      onRefresh: _refresh,
-      child: FutureBuilder<List<Zone>>(
-        future: _future,
-        builder: (context, snapshot) {
-          if (snapshot.connectionState != ConnectionState.done) {
-            return const Center(child: CircularProgressIndicator());
-          }
-          if (snapshot.hasError) {
-            return ListView(
-              physics: const AlwaysScrollableScrollPhysics(),
-              children: [
-                Padding(
-                  padding: const EdgeInsets.all(24),
-                  child: Text('${snapshot.error}', textAlign: TextAlign.center),
-                ),
-              ],
-            );
-          }
+    final isOwner = context.watch<AuthService>().user?.isOwner ?? false;
 
-          final zones = snapshot.data!;
-          return ListView.separated(
-            physics: const AlwaysScrollableScrollPhysics(),
-            itemCount: zones.length,
-            separatorBuilder: (context, index) => const Divider(height: 1),
-            itemBuilder: (context, index) {
-              final zone = zones[index];
-              return ListTile(
-                title: Text(zone.name),
-                subtitle: zone.description != null ? Text(zone.description!) : null,
-                trailing: Text('${zone.devicesCount ?? 0} устр.'),
+    return Scaffold(
+      body: RefreshIndicator(
+        onRefresh: _refresh,
+        child: FutureBuilder<List<Zone>>(
+          future: _future,
+          builder: (context, snapshot) {
+            if (snapshot.connectionState != ConnectionState.done) {
+              return const Center(child: CircularProgressIndicator());
+            }
+            if (snapshot.hasError) {
+              return ListView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.all(24),
+                    child: Text('${snapshot.error}', textAlign: TextAlign.center),
+                  ),
+                ],
               );
-            },
-          );
-        },
+            }
+
+            final zones = snapshot.data!;
+            return ListView.separated(
+              physics: const AlwaysScrollableScrollPhysics(),
+              itemCount: zones.length,
+              separatorBuilder: (context, index) => const Divider(height: 1),
+              itemBuilder: (context, index) {
+                final zone = zones[index];
+                final tile = ListTile(
+                  title: Text(zone.name),
+                  subtitle: zone.description != null ? Text(zone.description!) : null,
+                  trailing: Text('${zone.devicesCount ?? 0} устр.'),
+                  onTap: isOwner ? () => _openForm(zone: zone) : null,
+                );
+
+                if (!isOwner) return tile;
+
+                return Dismissible(
+                  key: ValueKey(zone.id),
+                  direction: DismissDirection.endToStart,
+                  background: Container(
+                    color: Theme.of(context).colorScheme.error,
+                    alignment: Alignment.centerRight,
+                    padding: const EdgeInsets.symmetric(horizontal: 20),
+                    child: const Icon(Icons.delete, color: Colors.white),
+                  ),
+                  confirmDismiss: (_) => _confirmDelete(zone),
+                  child: tile,
+                );
+              },
+            );
+          },
+        ),
       ),
+      floatingActionButton: isOwner
+          ? FloatingActionButton(onPressed: () => _openForm(), child: const Icon(Icons.add))
+          : null,
     );
   }
 }