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CloudHome-Ops/lib/screens/admin/media/media_rank_page.dart

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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../../models/media_asset.dart';
import '../../../services/media_service.dart';
import '../../../services/api_client.dart';
/// 媒资排行榜 Top10 管理页。
class MediaRankPage extends ConsumerStatefulWidget {
const MediaRankPage({super.key});
@override
ConsumerState<MediaRankPage> createState() => _MediaRankPageState();
}
class _MediaRankPageState extends ConsumerState<MediaRankPage> {
List<MediaRankItem> _items = [];
bool _loading = false;
String? _error;
@override
void initState() {
super.initState();
_loadData();
}
Future<void> _loadData() async {
setState(() {
_loading = true;
_error = null;
});
try {
final list = await MediaService().getMediaAssetRankTop10();
if (!mounted) return;
setState(() {
_items = list;
_loading = false;
});
} catch (e) {
if (!mounted) return;
setState(() {
_loading = false;
_error = e is ApiException ? e.message : '加载失败';
});
}
}
Future<void> _moveUp(String code) async {
try {
await MediaService().moveUpMediaAssetRank(code);
_loadData();
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e is ApiException ? e.message : '操作失败')),
);
}
}
Future<void> _moveDown(String code) async {
try {
await MediaService().moveDownMediaAssetRank(code);
_loadData();
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e is ApiException ? e.message : '操作失败')),
);
}
}
Future<void> _remove(String code) async {
final confirmed = await showDialog<bool>(
context: context,
builder: (ctx) => AlertDialog(
title: const Text('确认移除'),
content: const Text('确定要从排行榜移除此媒资吗?'),
actions: [
TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('取消')),
TextButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('移除')),
],
),
);
if (confirmed != true) return;
try {
await MediaService().removeMediaAssetRank(code);
_loadData();
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('移除成功')));
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e is ApiException ? e.message : '移除失败')),
);
}
}
Future<void> _clearAll() async {
final confirmed = await showDialog<bool>(
context: context,
builder: (ctx) => AlertDialog(
title: const Text('确认清空'),
content: const Text('确定要清空整个排行榜吗?此操作不可撤销。'),
actions: [
TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('取消')),
TextButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('清空')),
],
),
);
if (confirmed != true) return;
try {
await MediaService().clearMediaAssetRank();
_loadData();
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text('已清空')));
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e is ApiException ? e.message : '操作失败')),
);
}
}
void _showAddDialog() {
final searchCtrl = TextEditingController();
List<MediaAsset> allMedia = [];
bool searching = false;
showModalBottomSheet<void>(
useSafeArea: true,
context: context,
isScrollControlled: true,
builder: (sheetCtx) {
return StatefulBuilder(
builder: (ctx, setSheet) {
Future<void> doSearch() async {
setSheet(() => searching = true);
try {
allMedia = await MediaService().getMediaAssetList(page: 1, limit: 50);
} catch (_) {
allMedia = [];
} finally {
setSheet(() => searching = false);
}
}
if (allMedia.isEmpty && !searching) {
doSearch();
}
final kw = searchCtrl.text.trim().toLowerCase();
final filtered = kw.isEmpty
? allMedia
: allMedia.where((m) => m.name.toLowerCase().contains(kw)).toList();
final existingCodes = _items.map((e) => e.code).toSet();
final available = filtered.where((m) => !existingCodes.contains(m.code)).toList();
return SizedBox(
height: MediaQuery.of(ctx).size.height * 0.7,
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(16),
child: Row(
children: [
Text('选择媒资', style: Theme.of(ctx).textTheme.titleLarge),
const Spacer(),
IconButton(
icon: const Icon(Icons.close),
onPressed: () => Navigator.of(ctx).pop(),
),
],
),
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 16),
child: TextField(
controller: searchCtrl,
decoration: const InputDecoration(
hintText: '搜索媒资名称',
prefixIcon: Icon(Icons.search),
border: OutlineInputBorder(),
),
onChanged: (_) => setSheet(() {}),
),
),
const SizedBox(height: 8),
Expanded(
child: searching
? const Center(child: CircularProgressIndicator())
: available.isEmpty
? const Center(child: Text('无可选媒资'))
: ListView.builder(
itemCount: available.length,
itemBuilder: (_, index) {
final media = available[index];
return ListTile(
leading: media.coverUrl.isNotEmpty
? ClipRRect(
borderRadius: BorderRadius.circular(4),
child: Image.network(
media.coverUrl,
width: 40,
height: 56,
fit: BoxFit.cover,
errorBuilder: (_, __, ___) =>
const SizedBox(
width: 40,
height: 56,
child: Icon(Icons.video_library)),
),
)
: const SizedBox(
width: 40,
height: 56,
child: Icon(Icons.video_library),
),
title: Text(media.name),
subtitle: Text(media.code),
trailing: FilledButton.tonal(
onPressed: () => _addToRank(ctx, media.code, media.name),
child: const Text('添加'),
),
);
},
),
),
],
),
);
},
);
},
);
}
Future<void> _addToRank(BuildContext sheetCtx, String code, String name) async {
try {
await MediaService().setMediaAssetRank([code]);
if (!mounted) return;
Navigator.of(sheetCtx).pop();
_loadData();
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('已添加「$name」到排行榜')),
);
} catch (e) {
if (!mounted) return;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(e is ApiException ? e.message : '添加失败')),
);
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
automaticallyImplyLeading: false,
title: const Text('媒资排行榜 Top10'),
actions: [
if (_items.isNotEmpty)
IconButton(
icon: const Icon(Icons.delete_sweep),
onPressed: _clearAll,
tooltip: '清空排行榜',
),
],
),
body: _loading
? const Center(child: CircularProgressIndicator())
: _error != null
? Center(child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(_error!),
const SizedBox(height: 8),
FilledButton.tonal(onPressed: _loadData, child: const Text('重试')),
],
))
: _items.isEmpty
? const Center(child: Text('排行榜为空,点击+添加'))
: ListView.builder(
padding: const EdgeInsets.all(8),
itemCount: _items.length,
itemBuilder: (ctx, i) {
final item = _items[i];
final rank = i + 1;
return Card(
child: ListTile(
leading: Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 36,
height: 48,
alignment: Alignment.center,
decoration: BoxDecoration(
color: rank <= 3
? [Colors.amber, Colors.grey, Colors.brown][rank - 1]
: Theme.of(ctx).colorScheme.primaryContainer,
borderRadius: BorderRadius.circular(6),
),
child: Text(
'$rank',
style: TextStyle(
fontWeight: FontWeight.bold,
color: rank <= 3 ? Colors.white : null,
),
),
),
const SizedBox(width: 8),
if (item.coverUrl.isNotEmpty)
ClipRRect(
borderRadius: BorderRadius.circular(4),
child: Image.network(
item.coverUrl,
width: 36,
height: 48,
fit: BoxFit.cover,
errorBuilder: (_, __, ___) =>
const SizedBox(
width: 36,
height: 48,
child: Icon(Icons.video_library, size: 20)),
),
)
else
const SizedBox(
width: 36,
height: 48,
child: Icon(Icons.video_library, size: 20),
),
],
),
title: Text(item.mediaName.isNotEmpty
? item.mediaName
: item.code),
subtitle: Text(item.code),
trailing: Row(
mainAxisSize: MainAxisSize.min,
children: [
IconButton(
icon: const Icon(Icons.arrow_upward),
onPressed: i > 0 ? () => _moveUp(item.code) : null,
),
IconButton(
icon: const Icon(Icons.arrow_downward),
onPressed: i < _items.length - 1
? () => _moveDown(item.code)
: null,
),
IconButton(
icon: const Icon(Icons.close),
onPressed: () => _remove(item.code),
),
],
),
),
);
},
),
floatingActionButton: FloatingActionButton(
onPressed: _showAddDialog,
child: const Icon(Icons.add),
),
);
}
}