| 1 | import 'models/model_info.dart'; |
| 2 | |
| 3 | class ModelCache { |
| 4 | final _cache = <String, _CacheEntry>{}; |
| 5 | static const Duration ttl = Duration(minutes: 5); |
| 6 | |
| 7 | List<ModelInfo>? get(String serverId) { |
| 8 | final entry = _cache[serverId]; |
| 9 | if (entry == null) return null; |
| 10 | if (DateTime.now().difference(entry.timestamp) > ttl) { |
| 11 | _cache.remove(serverId); |
| 12 | return null; |
| 13 | } |
| 14 | return entry.models; |
| 15 | } |
| 16 | |
| 17 | void put(String serverId, List<ModelInfo> models) { |
| 18 | _cache[serverId] = _CacheEntry(models: models, timestamp: DateTime.now()); |
| 19 | } |
| 20 | |
| 21 | void invalidate(String serverId) { |
| 22 | _cache.remove(serverId); |
| 23 | } |
| 24 | |
| 25 | void invalidateAll() { |
| 26 | _cache.clear(); |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | class _CacheEntry { |
| 31 | final List<ModelInfo> models; |
| 32 | final DateTime timestamp; |
| 33 | |
| 34 | _CacheEntry({required this.models, required this.timestamp}); |
| 35 | } |