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138 changes: 138 additions & 0 deletions
138
lib/widgets/nt4_widgets/multi-topic/network_alerts.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| import 'package:dot_cast/dot_cast.dart'; | ||
| import 'package:elastic_dashboard/services/globals.dart'; | ||
| import 'package:elastic_dashboard/services/nt4_connection.dart'; | ||
| import 'package:elastic_dashboard/widgets/nt4_widgets/nt4_widget.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:provider/provider.dart'; | ||
|
|
||
| class NetworkAlerts extends StatelessWidget with NT4Widget { | ||
| @override | ||
| String type = 'Alerts'; | ||
|
|
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| late String errorsTopicName; | ||
| late String warningsTopicName; | ||
| late String infosTopicName; | ||
|
|
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| NetworkAlerts({super.key, required topic, period = Globals.defaultPeriod}) { | ||
| super.topic = topic; | ||
| super.period = period; | ||
|
|
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| init(); | ||
| } | ||
|
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| NetworkAlerts.fromJson({super.key, required Map<String, dynamic> jsonData}) { | ||
| topic = tryCast(jsonData['topic']) ?? ''; | ||
| period = tryCast(jsonData['period']) ?? Globals.defaultPeriod; | ||
|
|
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| init(); | ||
| } | ||
|
|
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| @override | ||
| void init() { | ||
| super.init(); | ||
|
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| errorsTopicName = '$topic/errors'; | ||
| warningsTopicName = '$topic/warnings'; | ||
| infosTopicName = '$topic/infos'; | ||
| } | ||
|
|
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| @override | ||
| void resetSubscription() { | ||
| super.resetSubscription(); | ||
|
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| errorsTopicName = '$topic/errors'; | ||
| warningsTopicName = '$topic/warnings'; | ||
| infosTopicName = '$topic/infos'; | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| notifier = context.watch<NT4WidgetNotifier?>(); | ||
|
|
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| return StreamBuilder( | ||
| stream: subscription?.periodicStream(), | ||
| builder: (context, snapshot) { | ||
| List<Object?> errorsRaw = nt4Connection | ||
| .getLastAnnouncedValue(errorsTopicName) | ||
| ?.tryCast<List<Object?>>() ?? | ||
| []; | ||
|
|
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| List<Object?> warningsRaw = nt4Connection | ||
| .getLastAnnouncedValue(warningsTopicName) | ||
| ?.tryCast<List<Object?>>() ?? | ||
| []; | ||
|
|
||
| List<Object?> infosRaw = nt4Connection | ||
| .getLastAnnouncedValue(infosTopicName) | ||
| ?.tryCast<List<Object?>>() ?? | ||
| []; | ||
|
|
||
| List<String> errors = errorsRaw.whereType<String>().toList(); | ||
| List<String> warnings = warningsRaw.whereType<String>().toList(); | ||
| List<String> infos = infosRaw.whereType<String>().toList(); | ||
|
|
||
| return ListView.builder( | ||
| itemCount: errors.length + warnings.length + infos.length, | ||
| itemBuilder: (context, index) { | ||
| String alertType = 'error'; | ||
| String alertMessage; | ||
| if (index >= errors.length) { | ||
| index -= errors.length; | ||
| alertType = 'warning'; | ||
| } | ||
| if (index >= warnings.length && alertType == 'warning') { | ||
| index -= warnings.length; | ||
| alertType = 'info'; | ||
| } | ||
| if (index >= infos.length && alertType == 'info') { | ||
| alertType = 'none'; | ||
| } | ||
|
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| TextStyle? messageStyle = Theme.of(context).textTheme.bodyMedium; | ||
|
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| switch (alertType) { | ||
| case 'error': | ||
| alertMessage = errors[index]; | ||
| return ListTile( | ||
| dense: true, | ||
| contentPadding: const EdgeInsets.symmetric(horizontal: 8.0), | ||
| leading: const Icon( | ||
| Icons.cancel, | ||
| size: 24, | ||
| color: Colors.red, | ||
| ), | ||
| title: Text(alertMessage, style: messageStyle), | ||
| ); | ||
| case 'warning': | ||
| alertMessage = warnings[index]; | ||
| return ListTile( | ||
| dense: true, | ||
| contentPadding: const EdgeInsets.symmetric(horizontal: 8.0), | ||
| leading: const Icon( | ||
| Icons.warning, | ||
| size: 24, | ||
| color: Colors.yellow, | ||
| ), | ||
| title: Text(alertMessage, style: messageStyle), | ||
| ); | ||
| case 'info': | ||
| alertMessage = infos[index]; | ||
| return ListTile( | ||
| dense: true, | ||
| contentPadding: const EdgeInsets.symmetric(horizontal: 8.0), | ||
| leading: const Icon( | ||
| Icons.info, | ||
| size: 24, | ||
| color: Colors.green, | ||
| ), | ||
| title: Text(alertMessage, style: messageStyle), | ||
| ); | ||
| default: | ||
| return Container(); | ||
| } | ||
| }, | ||
| ); | ||
| }, | ||
| ); | ||
| } | ||
| } |