493 lines
15 KiB
Dart
493 lines
15 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../models/notification_model.dart';
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import '../providers/notification_provider.dart';
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import '../theme/app_theme.dart';
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import '../widgets/app_sidebar.dart';
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import '../widgets/responsive_layout.dart';
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class NotificationsScreen extends StatelessWidget {
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const NotificationsScreen({super.key});
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@override
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Widget build(BuildContext context) {
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return const ResponsiveLayout(
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title: 'اعلانها',
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sidebar: AppSidebar(),
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body: _NotificationsBody(),
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);
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}
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}
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class _NotificationsBody extends StatefulWidget {
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const _NotificationsBody();
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@override
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State<_NotificationsBody> createState() => _NotificationsBodyState();
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}
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class _NotificationsBodyState extends State<_NotificationsBody> {
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final _searchCtrl = TextEditingController();
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String _search = '';
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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context.read<NotificationProvider>().loadNotifications();
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});
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}
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@override
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void dispose() {
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_searchCtrl.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// ── Header ────────────────────────────────────────────────
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Row(
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children: [
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const Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'اعلانهای سیستم',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.w800,
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color: AppTheme.textPrimary,
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),
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),
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SizedBox(height: 4),
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Text(
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'مشاهده اعلانها و ارسال اعلان عمومی',
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style: TextStyle(
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fontSize: 14, color: AppTheme.textSecondary),
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),
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],
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),
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),
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ElevatedButton.icon(
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onPressed: () => _showBroadcastDialog(context),
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icon: const Icon(Icons.campaign_rounded, size: 18),
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label: const Text('ارسال اعلان عمومی'),
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),
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],
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),
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const SizedBox(height: 20),
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// ── Search ───────────────────────────────────────────────
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TextField(
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controller: _searchCtrl,
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onChanged: (v) => setState(() => _search = v.toLowerCase()),
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decoration: const InputDecoration(
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hintText: 'جستجوی اعلان...',
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prefixIcon: Icon(Icons.search_rounded),
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),
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),
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const SizedBox(height: 16),
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// ── Table ────────────────────────────────────────────────
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Expanded(
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child: Consumer<NotificationProvider>(
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builder: (_, provider, __) {
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if (provider.isLoading) {
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return const Center(child: CircularProgressIndicator());
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}
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if (provider.status == NotificationLoadStatus.error) {
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return _ErrorView(
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message: provider.error ?? 'خطا',
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onRetry: () => provider.loadNotifications(),
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);
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}
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final filtered = provider.items.where((n) {
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if (_search.isEmpty) return true;
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final text = [
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n.title,
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n.description ?? '',
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n.receiverId,
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n.senderId ?? '',
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].join(' ').toLowerCase();
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return text.contains(_search);
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}).toList();
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if (filtered.isEmpty) {
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return const _EmptyView(
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icon: Icons.notifications_none_rounded,
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message: 'اعلانی یافت نشد',
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);
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}
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return _NotificationsTable(items: filtered);
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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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void _showBroadcastDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (_) => const _BroadcastDialog(),
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);
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}
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}
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// ── Broadcast Dialog ─────────────────────────────────────────────────────────
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class _BroadcastDialog extends StatefulWidget {
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const _BroadcastDialog();
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@override
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State<_BroadcastDialog> createState() => _BroadcastDialogState();
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}
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class _BroadcastDialogState extends State<_BroadcastDialog> {
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final _formKey = GlobalKey<FormState>();
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final _titleCtrl = TextEditingController();
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final _descCtrl = TextEditingController();
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bool _loading = false;
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String? _error;
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bool _sent = false;
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@override
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void dispose() {
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_titleCtrl.dispose();
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_descCtrl.dispose();
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super.dispose();
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}
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Future<void> _submit() async {
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if (!_formKey.currentState!.validate()) return;
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setState(() {
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_loading = true;
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_error = null;
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});
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final title = _titleCtrl.text.trim();
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final desc = _descCtrl.text.trim();
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final provider = context.read<NotificationProvider>();
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final success = await provider.sendPublic(title, desc);
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if (!mounted) return;
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setState(() => _loading = false);
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if (success) {
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setState(() => _sent = true);
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} else {
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setState(() => _error = provider.error ?? 'خطا در ارسال اعلان');
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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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if (_sent) {
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return AlertDialog(
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title: const Row(
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children: [
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Icon(Icons.check_circle_rounded, color: AppTheme.success),
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SizedBox(width: 10),
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Text('اعلان ارسال شد'),
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],
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),
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content: const Text('اعلان عمومی با موفقیت به همه کاربران ارسال شد.'),
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actions: [
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ElevatedButton(
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onPressed: () => Navigator.of(context).pop(),
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child: const Text('بستن'),
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),
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],
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);
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}
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return AlertDialog(
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title: const Row(
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children: [
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Icon(Icons.campaign_rounded, color: AppTheme.primary),
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SizedBox(width: 10),
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Text('ارسال اعلان عمومی'),
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],
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),
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content: SizedBox(
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width: 440,
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child: Form(
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key: _formKey,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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TextFormField(
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controller: _titleCtrl,
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decoration: const InputDecoration(
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labelText: 'عنوان اعلان',
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prefixIcon: Icon(Icons.title_rounded),
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),
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validator: (v) =>
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(v == null || v.trim().isEmpty) ? 'عنوان الزامی است' : null,
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),
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const SizedBox(height: 16),
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TextFormField(
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controller: _descCtrl,
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maxLines: 4,
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decoration: const InputDecoration(
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labelText: 'متن اعلان (اختیاری)',
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prefixIcon: Icon(Icons.description_outlined),
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alignLabelWithHint: true,
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),
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),
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if (_error != null) ...[
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const SizedBox(height: 12),
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Container(
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padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(
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color: AppTheme.danger.withValues(alpha: 0.08),
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borderRadius: BorderRadius.circular(8),
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border: Border.all(
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color: AppTheme.danger.withValues(alpha: 0.3)),
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),
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child: Text(
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_error!,
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style: const TextStyle(
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color: AppTheme.danger, 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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),
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),
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actions: [
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TextButton(
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onPressed: _loading ? null : () => Navigator.of(context).pop(),
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child: const Text('انصراف'),
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),
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ElevatedButton.icon(
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onPressed: _loading ? null : _submit,
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icon: _loading
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? const SizedBox(
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width: 14,
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height: 14,
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child: CircularProgressIndicator(
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color: Colors.white, strokeWidth: 2))
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: const Icon(Icons.send_rounded, size: 16),
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label: const Text('ارسال به همه'),
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),
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],
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);
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}
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}
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// ── Notifications Table ─────────────────────────────────────────────────────
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class _NotificationsTable extends StatelessWidget {
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final List<NotificationModel> items;
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const _NotificationsTable({required this.items});
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@override
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Widget build(BuildContext context) {
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return Card(
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child: ClipRRect(
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borderRadius: BorderRadius.circular(12),
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child: SingleChildScrollView(
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: DataTable(
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columns: const [
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DataColumn(label: Text('عنوان')),
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DataColumn(label: Text('نوع')),
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DataColumn(label: Text('گیرنده')),
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DataColumn(label: Text('وضعیت')),
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],
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rows: items.map((n) => _buildRow(n)).toList(),
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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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DataRow _buildRow(NotificationModel n) {
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return DataRow(
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cells: [
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DataCell(
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SizedBox(
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width: 280,
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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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n.title,
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style: const TextStyle(fontWeight: FontWeight.w600),
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),
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if ((n.description ?? '').isNotEmpty) ...[
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const SizedBox(height: 4),
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Text(
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n.description!,
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style: const TextStyle(
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color: AppTheme.textSecondary,
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fontSize: 12,
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),
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),
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],
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if (n.groupId != null) ...[
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const SizedBox(height: 4),
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Text(
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'گروه: ${n.groupId}',
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style: const TextStyle(
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color: AppTheme.textSecondary,
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fontSize: 11,
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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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DataCell(_TypeBadge(type: n.type)),
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DataCell(
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Text(
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n.receiverId,
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style: const TextStyle(color: AppTheme.textSecondary),
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),
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),
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DataCell(_StatusBadge(type: n.type, isAccepted: n.isAccepted)),
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],
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);
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}
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}
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class _TypeBadge extends StatelessWidget {
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final NotificationType type;
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const _TypeBadge({required this.type});
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@override
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Widget build(BuildContext context) {
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final color = type == NotificationType.public
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? AppTheme.primary
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: const Color(0xFF0891B2);
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
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decoration: BoxDecoration(
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color: color.withValues(alpha: 0.12),
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borderRadius: BorderRadius.circular(20),
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),
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child: Text(
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type.label,
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style: TextStyle(
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color: color,
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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),
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);
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}
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}
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class _StatusBadge extends StatelessWidget {
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final NotificationType type;
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final bool? isAccepted;
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const _StatusBadge({required this.type, required this.isAccepted});
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@override
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Widget build(BuildContext context) {
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String label;
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Color color;
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if (type == NotificationType.public) {
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label = 'ارسال شد';
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color = AppTheme.success;
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} else {
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if (isAccepted == true) {
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label = 'تأیید شد';
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color = AppTheme.success;
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} else if (isAccepted == false) {
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label = 'رد شد';
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color = AppTheme.danger;
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} else {
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label = 'در انتظار';
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color = AppTheme.warning;
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}
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}
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
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decoration: BoxDecoration(
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color: color.withValues(alpha: 0.12),
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borderRadius: BorderRadius.circular(20),
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),
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child: Text(
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label,
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style: TextStyle(
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color: color,
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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),
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);
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}
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}
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class _EmptyView extends StatelessWidget {
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final IconData icon;
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final String message;
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const _EmptyView({required this.icon, required this.message});
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(icon, size: 64, color: AppTheme.border),
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const SizedBox(height: 16),
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Text(
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message,
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style: const TextStyle(color: AppTheme.textSecondary, fontSize: 16),
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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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class _ErrorView extends StatelessWidget {
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final String message;
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final VoidCallback onRetry;
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const _ErrorView({required this.message, required this.onRetry});
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const Icon(Icons.error_outline_rounded,
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size: 64, color: AppTheme.danger),
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const SizedBox(height: 16),
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Text(message, style: const TextStyle(color: AppTheme.textSecondary)),
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const SizedBox(height: 16),
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ElevatedButton.icon(
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onPressed: onRetry,
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icon: const Icon(Icons.refresh_rounded),
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label: const Text('تلاش مجدد'),
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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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