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import 'dart:async';
import 'dart:developer';
import 'dart:math';
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:iot_dashboard/resources/model/ActionData.dart';
import 'package:iot_dashboard/resources/repo/DataRepo.dart';
import 'package:iot_dashboard/resources/repo/MQTT.dart';
import 'package:syncfusion_flutter_charts/charts.dart';
import '../resources/model/DHT11Data.dart';
import '../resources/model/LiveData.dart';
import '../resources/widgets/AnimatedBox.dart';
import '../resources/widgets/GradientBox.dart';
import 'dart:math' as math;
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
ActionData actionData = ActionData(
id: 0, statusFan: false, statusLed: false, time: DateTime.now());
bool isBlink = false;
List<LiveData> chartTemperature = [];
List<LiveData> chartHumidity = [];
List<LiveData> chartLight = [];
List<LiveData> chartDust = [];
late ChartSeriesController _chartSeriesControllerTemperature;
late ChartSeriesController _chartSeriesControllerHumidity;
late ChartSeriesController _chartSeriesControllerLight;
late ChartSeriesController _chartSeriesControllerDust;
@override
void initState() {
super.initState();
updateDataSource();
// randomContinuous();
}
void randomContinuous() {
final random = Random();
void generateRandomNumber() {
double randomNumber = random.nextDouble();
print('Random number: $randomNumber');
}
Duration duration = Duration(seconds: 2);
Timer.periodic(duration, (Timer timer) {
DHT11Data data = DHT11Data(
temperature: (math.Random().nextInt(60) + 30),
humidity: (math.Random().nextInt(60) + 30),
lux: (math.Random().nextInt(60) + 30),
dust: (math.Random().nextInt(60) + 30),
time: DateTime.now(),
id: 0);
MQTT.instance.setDHT11Data(data);
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Column(
children: [
// Top Row with 3 Buttons
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Expanded(
flex: 1,
child: GradientBox(
title: 'Temperature',
color: Colors.red,
value: chartTemperature.isNotEmpty
? chartTemperature.last.speed
: 0,
suffix: '°C',
)),
SizedBox(width: 10),
Expanded(
flex: 1,
child: GradientBox(
title: 'Humidity',
color: Colors.blue,
value:
chartHumidity.isNotEmpty ? chartHumidity.last.speed : 0,
suffix: '%',
)),
SizedBox(width: 10),
Expanded(
child: GradientBox(
title: 'Light',
color: Colors.orange,
value: chartLight.isNotEmpty ? chartLight.last.speed : 0,
suffix: 'lux',
)),
SizedBox(width: 10),
Expanded(
child: GradientBox(
title: 'Dust level',
color: Colors.orange,
value: chartDust.isNotEmpty ? chartDust.last.speed : 0,
suffix: 'µg/m³',
)),
SizedBox(width: 10),
],
),
// Middle Row with 2 Buttons on the left
Expanded(
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
flex: 3,
child: buildSfCartesianChart(),
),
Expanded(
flex: 3,
child: buildSfCartesianChartDust(),
),
Expanded(
flex: 2,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
// Box for "Pan" with Lottie Animation, Toggle, and Detail Text
SizedBox(height: 10),
AnimatedBox(
title: 'Pan',
animationPath: 'assets/lottie/fan.json',
detail: 'Turn on the pan',
onSwitchChanged: (bool value) {
setState(() {
actionData = actionData.copyWith(
statusFan: value, time: DateTime.now());
});
DataRepo.instance.setAction(actionData);
MQTT.instance.setFan(value.toString());
},
isBlink: isBlink,
),
SizedBox(height: 10),
// Box for "Light Bulb" with Lottie Animation, Toggle, and Detail Text
AnimatedBox(
title: 'Light Bulb',
animationPath: 'assets/lottie/light_bulb.json',
detail: 'Turn on the light bulb',
onSwitchChanged: (bool value) {
setState(() {
actionData = actionData.copyWith(
statusLed: value, time: DateTime.now());
});
DataRepo.instance.setAction(actionData);
MQTT.instance.setLed(value.toString());
},
isBlink: isBlink,
),
SizedBox(height: 10),
AnimatedBox(
title: 'Air Conditioner',
animationPath: 'assets/lottie/air_conditioner.json',
detail: 'Turn on the air conditioner',
onSwitchChanged: (bool value) {
// setState(() {
// actionData = actionData.copyWith(
// statusLed: value, time: DateTime.now());
// });
DataRepo.instance.setAction(actionData);
MQTT.instance.setDust(value.toString());
},
isBlink: isBlink,
),
SizedBox(height: 10),
],
)),
// Empty space to separate buttons
// Container to fill the remaining space
],
),
),
],
);
}
SfCartesianChart buildSfCartesianChart() {
return SfCartesianChart(
primaryXAxis: DateTimeAxis(),
legend: const Legend(isVisible: true),
series: <LineSeries<LiveData, DateTime>>[
LineSeries<LiveData, DateTime>(
name: 'Temperature',
onRendererCreated: (ChartSeriesController controller) {
_chartSeriesControllerTemperature = controller;
},
dataSource: chartTemperature,
color: const Color(0xFFF44636),
xValueMapper: (LiveData sales, _) => sales.time,
yValueMapper: (LiveData sales, _) => sales.speed,
),
LineSeries<LiveData, DateTime>(
name: 'Humidity',
onRendererCreated: (ChartSeriesController controller) {
_chartSeriesControllerHumidity = controller;
},
dataSource: chartHumidity,
color: const Color(0xFF1E98F3),
xValueMapper: (LiveData sales, _) => sales.time,
yValueMapper: (LiveData sales, _) => sales.speed,
),
LineSeries<LiveData, DateTime>(
name: 'Light',
onRendererCreated: (ChartSeriesController controller) {
_chartSeriesControllerLight = controller;
},
dataSource: chartLight,
color: const Color(0xFFFFE839),
xValueMapper: (LiveData sales, _) => sales.time,
yValueMapper: (LiveData sales, _) => sales.speed / 10,
),
],
);
}
SfCartesianChart buildSfCartesianChartDust() {
return SfCartesianChart(
primaryXAxis: DateTimeAxis(),
legend: const Legend(isVisible: true),
series: <LineSeries<LiveData, DateTime>>[
LineSeries<LiveData, DateTime>(
name: 'Dust',
onRendererCreated: (ChartSeriesController controller) {
_chartSeriesControllerDust = controller;
},
dataSource: chartDust,
color: const Color(0xFFE91E63),
xValueMapper: (LiveData sales, _) => sales.time,
yValueMapper: (LiveData sales, _) => sales.speed,
),
],
);
}
void updateDataSource() {
DataRepo.instance.listDHT11Data.addListener(() {
// log('updateDataSource ${DataRepo.instance.listDHT11Data.read().length}');
// pick last 30 data
chartTemperature = DataRepo.instance.listDHT11Data
.read()
.getRange(
DataRepo.instance.listDHT11Data.read().length - 30 > 0
? DataRepo.instance.listDHT11Data.read().length - 30
: 0,
DataRepo.instance.listDHT11Data.read().length)
.map((e) => LiveData(e.time, e.temperature))
.toList();
chartHumidity = DataRepo.instance.listDHT11Data
.read()
.getRange(
DataRepo.instance.listDHT11Data.read().length - 30 > 0
? DataRepo.instance.listDHT11Data.read().length - 30
: 0,
DataRepo.instance.listDHT11Data.read().length)
.map((e) => LiveData(e.time, e.humidity))
.toList();
chartLight = DataRepo.instance.listDHT11Data
.read()
.getRange(
DataRepo.instance.listDHT11Data.read().length - 30 > 0
? DataRepo.instance.listDHT11Data.read().length - 30
: 0,
DataRepo.instance.listDHT11Data.read().length)
.map((e) => LiveData(e.time, e.lux))
.toList();
chartDust = DataRepo.instance.listDHT11Data
.read()
.getRange(
DataRepo.instance.listDHT11Data.read().length - 30 > 0
? DataRepo.instance.listDHT11Data.read().length - 30
: 0,
DataRepo.instance.listDHT11Data.read().length)
.map((e) => LiveData(e.time, e.dust))
.toList();
if (chartTemperature.length > 30) {
_chartSeriesControllerTemperature.updateDataSource(
addedDataIndex: chartTemperature.length - 1, removedDataIndex: 0);
}
if (chartHumidity.length > 30) {
_chartSeriesControllerHumidity.updateDataSource(
addedDataIndex: chartHumidity.length - 1, removedDataIndex: 0);
}
if (chartLight.length > 30) {
_chartSeriesControllerLight.updateDataSource(
addedDataIndex: chartLight.length - 1, removedDataIndex: 0);
}
if (chartDust.length > 30) {
_chartSeriesControllerDust.updateDataSource(
addedDataIndex: chartDust.length - 1, removedDataIndex: 0);
}
setState(() {
isBlink = chartDust.isNotEmpty
? chartDust.last.speed > 50
? true
: false
: false;
print(isBlink);
// Rebuild UI
});
});
}
}