calls/lib/controller/talkgroups.dart
2024-08-17 12:04:42 -04:00

31 lines
850 B
Dart

import 'dart:async';
import 'stillbox_none.dart'
if (dart.library.io) 'stillbox_io.dart'
if (dart.library.html) 'stillbox_web.dart';
import '../pb/stillbox.pb.dart';
class TalkgroupCache {
Socketer socketer;
final StreamController<TalkgroupInfo> tgiSt =
StreamController<TalkgroupInfo>.broadcast();
Map<Talkgroup, TalkgroupInfo> cache = {};
TalkgroupCache(this.socketer);
void handleTgInfo(TalkgroupInfo tgi) {
cache[tgi.tg] = tgi;
tgiSt.add(tgi);
}
Future<TalkgroupInfo> getTg(int system, int tgid) async {
final tg = Talkgroup(system: system, talkgroup: tgid);
if (cache[tg] != null) {
return cache[tg]!;
}
socketer.channel.sink.add(Command(tgCommand: tg).writeToBuffer());
return tgiSt.stream
.firstWhere((td) => td.tg.system == system && td.tg.talkgroup == tgid);
}
}