422 lines
17 KiB
Dart
422 lines
17 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import '../../../core/network/api_client.dart';
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import '../../../core/network/signalr_service.dart';
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import '../../../core/theme/app_theme.dart';
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import '../../../core/widgets/glass_container.dart';
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import '../../../core/widgets/status_badge.dart';
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import '../models/admin_update_user_request_dto.dart';
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import '../models/admin_user_model.dart';
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import '../bloc/admin_bloc.dart';
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import '../repositories/admin_repository.dart';
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import '../widgets/admin_kpi_header.dart';
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import '../widgets/create_user_dialog.dart';
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import '../widgets/edit_user_dialog.dart';
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import '../widgets/system_diagnostics_widget.dart';
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/// Role-Restricted Admin Panel Screen managing users, service settings, and system health.
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class AdminUsersScreen extends StatelessWidget {
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final ApiClient apiClient;
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final SignalRService? signalRService;
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const AdminUsersScreen({
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super.key,
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required this.apiClient,
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this.signalRService,
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});
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@override
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Widget build(BuildContext context) {
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return BlocProvider(
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create: (context) => AdminBloc(
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repository: AdminRepository(apiClient: apiClient),
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)..add(FetchAdminUsers()),
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child: _AdminUsersScreenContent(
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apiClient: apiClient,
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signalRService: signalRService,
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),
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);
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}
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}
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class _AdminUsersScreenContent extends StatefulWidget {
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final ApiClient apiClient;
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final SignalRService? signalRService;
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const _AdminUsersScreenContent({
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required this.apiClient,
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this.signalRService,
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});
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@override
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State<_AdminUsersScreenContent> createState() => _AdminUsersScreenContentState();
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}
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class _AdminUsersScreenContentState extends State<_AdminUsersScreenContent> with SingleTickerProviderStateMixin {
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late TabController _tabController;
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String _searchQuery = '';
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String _roleFilter = 'Alle';
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@override
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void initState() {
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super.initState();
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_tabController = TabController(length: 2, vsync: this);
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}
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@override
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void dispose() {
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_tabController.dispose();
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super.dispose();
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}
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void _openCreateUser(BuildContext context) async {
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final res = await showDialog(context: context, builder: (_) => const CreateUserDialog());
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if (res != null && context.mounted) {
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context.read<AdminBloc>().add(CreateAdminUser(res));
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}
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}
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void _openEditUser(BuildContext context, AdminUserModel user) async {
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final res = await showDialog(context: context, builder: (_) => EditUserDialog(user: user));
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if (res != null && context.mounted) {
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context.read<AdminBloc>().add(UpdateAdminUser(user.id, res as AdminUpdateUserRequestDto));
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}
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}
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void _toggleUserActiveStatus(BuildContext context, AdminUserModel user, bool newActive) {
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final dto = AdminUpdateUserRequestDto(role: user.role, isActive: newActive);
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context.read<AdminBloc>().add(UpdateAdminUser(user.id, dto));
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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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backgroundColor: Colors.transparent,
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body: BlocBuilder<AdminBloc, AdminState>(
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builder: (context, state) {
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final users = state is AdminLoaded ? state.users : <AdminUserModel>[];
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return Padding(
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padding: const EdgeInsets.all(20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Top Header Ribbon
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Container(
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padding: const EdgeInsets.all(8),
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decoration: BoxDecoration(
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color: AppTheme.primaryEmerald.withValues(alpha: 0.15),
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borderRadius: BorderRadius.circular(10),
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border: Border.all(color: AppTheme.primaryEmerald.withValues(alpha: 0.3)),
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),
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child: Icon(Icons.admin_panel_settings_rounded, color: AppTheme.primaryEmerald, size: 22),
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),
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const SizedBox(width: 12),
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const Text(
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'Admin Control Panel',
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style: TextStyle(fontSize: 22, fontWeight: FontWeight.bold, letterSpacing: -0.5),
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),
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],
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),
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const SizedBox(height: 4),
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Text(
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'Zentrales Management für Nutzer, Mikrodienste & MQTT System-Bus',
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style: TextStyle(fontSize: 12, color: AppTheme.textSecondary),
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),
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],
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),
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ElevatedButton.icon(
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onPressed: () => _openCreateUser(context),
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icon: const Icon(Icons.person_add_outlined, size: 18),
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label: const Text('Nutzer Anlegen', style: TextStyle(fontWeight: FontWeight.bold)),
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style: ElevatedButton.styleFrom(
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backgroundColor: AppTheme.primaryEmerald,
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foregroundColor: Colors.black,
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padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 12),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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),
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),
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],
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),
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const SizedBox(height: 16),
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// KPI Header Metrics
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AdminKpiHeader(
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users: users,
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signalRService: widget.signalRService,
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),
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const SizedBox(height: 16),
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// Tab Selector Ribbon
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Container(
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decoration: BoxDecoration(
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color: AppTheme.glassSurface,
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borderRadius: BorderRadius.circular(14),
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border: Border.all(color: AppTheme.glassBorder),
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),
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child: TabBar(
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controller: _tabController,
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indicatorColor: AppTheme.primaryEmerald,
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indicatorSize: TabBarIndicatorSize.tab,
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labelColor: AppTheme.primaryEmerald,
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unselectedLabelColor: AppTheme.textMuted,
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labelStyle: const TextStyle(fontWeight: FontWeight.bold, fontSize: 13),
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indicator: BoxDecoration(
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color: AppTheme.primaryEmerald.withValues(alpha: 0.15),
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borderRadius: BorderRadius.circular(12),
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border: Border.all(color: AppTheme.primaryEmerald.withValues(alpha: 0.4)),
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),
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tabs: const [
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Tab(icon: Icon(Icons.people_alt_outlined, size: 18), text: 'Nutzerverwaltung'),
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Tab(icon: Icon(Icons.monitor_heart_outlined, size: 18), text: 'System-Diagnose & MQTT'),
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],
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),
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),
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const SizedBox(height: 16),
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// Tab Content View
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Expanded(
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child: TabBarView(
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controller: _tabController,
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children: [
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// Tab 1: User Management with Filter & Actions
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_buildUserManagementTab(context, state, users),
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// Tab 2: System Diagnostics & Microservices Health
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SystemDiagnosticsWidget(
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signalRService: widget.signalRService,
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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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);
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}
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Widget _buildUserManagementTab(BuildContext context, AdminState state, List<AdminUserModel> allUsers) {
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if (state is AdminLoading) {
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return Center(child: CircularProgressIndicator(color: AppTheme.primaryEmerald));
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}
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if (state is AdminError) {
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return Center(
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child: GlassContainer(
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.error_outline_rounded, color: AppTheme.accentRed, size: 40),
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const SizedBox(height: 12),
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Text(state.message, style: TextStyle(color: AppTheme.textPrimary, fontWeight: FontWeight.bold)),
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const SizedBox(height: 16),
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ElevatedButton(
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onPressed: () => context.read<AdminBloc>().add(FetchAdminUsers()),
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style: ElevatedButton.styleFrom(backgroundColor: AppTheme.primaryEmerald, foregroundColor: Colors.black),
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child: const Text('Erneut versuchen'),
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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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// Apply Search Query & Role Filter
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final filteredUsers = allUsers.where((u) {
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final matchesSearch = u.fullName.toLowerCase().contains(_searchQuery.toLowerCase()) ||
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u.email.toLowerCase().contains(_searchQuery.toLowerCase());
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final matchesRole = _roleFilter == 'Alle' || u.role.toLowerCase() == _roleFilter.toLowerCase();
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return matchesSearch && matchesRole;
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}).toList();
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return Column(
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children: [
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// Filter Bar (Search Field & Role Filter Chips)
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Row(
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children: [
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Expanded(
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child: TextField(
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onChanged: (val) => setState(() => _searchQuery = val),
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decoration: InputDecoration(
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hintText: 'Benutzer nach Name oder E-Mail suchen...',
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prefixIcon: Icon(Icons.search_rounded, color: AppTheme.textMuted),
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suffixIcon: _searchQuery.isNotEmpty
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? IconButton(
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icon: const Icon(Icons.clear, size: 18),
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onPressed: () => setState(() => _searchQuery = ''),
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)
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: null,
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),
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),
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),
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const SizedBox(width: 12),
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SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: Row(
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children: ['Alle', 'Admin', 'Premium', 'User'].map((role) {
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final isSelected = _roleFilter == role;
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return Padding(
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padding: const EdgeInsets.only(right: 6),
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child: ChoiceChip(
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label: Text(role),
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selected: isSelected,
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selectedColor: AppTheme.primaryEmerald,
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backgroundColor: AppTheme.glassSurface,
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labelStyle: TextStyle(
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color: isSelected ? Colors.black : AppTheme.textSecondary,
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fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
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fontSize: 12,
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),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
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side: BorderSide(color: isSelected ? AppTheme.primaryEmerald : AppTheme.glassBorder),
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onSelected: (val) {
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if (val) setState(() => _roleFilter = role);
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},
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),
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);
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}).toList(),
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),
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),
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],
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),
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const SizedBox(height: 14),
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// User Cards List
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Expanded(
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child: filteredUsers.isEmpty
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? Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.person_search_outlined, size: 48, color: AppTheme.textMuted),
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const SizedBox(height: 12),
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Text(
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'Keine passenden Benutzer gefunden.',
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style: TextStyle(color: AppTheme.textMuted, fontSize: 14),
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),
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],
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),
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)
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: ListView.builder(
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itemCount: filteredUsers.length,
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itemBuilder: (context, index) {
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final u = filteredUsers[index];
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final String role = u.role;
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final bool isActive = u.isActive;
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final Color roleColor = role == 'Admin'
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? const Color(0xFFA855F7)
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: role == 'Premium'
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? AppTheme.primaryEmerald
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: AppTheme.accentCyan;
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final String initials = _getInitials(u.fullName.isNotEmpty ? u.fullName : u.email);
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return GlassContainer(
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margin: const EdgeInsets.only(bottom: 10),
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padding: const EdgeInsets.all(14),
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child: Row(
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children: [
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// Avatar Initials Circle
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Container(
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width: 42,
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height: 42,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: roleColor.withValues(alpha: 0.2),
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shape: BoxShape.circle,
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border: Border.all(color: roleColor, width: 1.5),
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),
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child: Text(
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initials,
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style: TextStyle(fontWeight: FontWeight.bold, color: roleColor, fontSize: 14),
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),
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),
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const SizedBox(width: 14),
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// User Name & Email
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Text(
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u.fullName.isNotEmpty ? u.fullName : u.email,
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style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 15),
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),
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const SizedBox(width: 8),
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StatusBadge(label: role, color: roleColor),
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],
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),
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const SizedBox(height: 2),
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Text(
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u.email,
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style: TextStyle(fontSize: 12, color: AppTheme.textSecondary),
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),
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],
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),
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),
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// Active/Inactive Quick Switch Toggle
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Row(
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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Text(
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isActive ? 'Aktiv' : 'Gesperrt',
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style: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.bold,
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color: isActive ? AppTheme.primaryEmerald : AppTheme.accentRed,
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),
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),
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],
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),
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const SizedBox(width: 8),
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Switch(
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value: isActive,
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activeThumbColor: AppTheme.primaryEmerald,
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onChanged: (val) => _toggleUserActiveStatus(context, u, val),
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),
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const SizedBox(width: 8),
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IconButton.filledTonal(
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icon: const Icon(Icons.edit_outlined, size: 18),
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tooltip: 'Benutzer Bearbeiten',
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onPressed: () => _openEditUser(context, u),
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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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],
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);
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}
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String _getInitials(String name) {
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if (name.isEmpty) return 'U';
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final parts = name.trim().split(' ');
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if (parts.length >= 2) {
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return '${parts[0][0]}${parts[1][0]}'.toUpperCase();
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}
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return name.substring(0, name.length >= 2 ? 2 : 1).toUpperCase();
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}
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}
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