Files
dash-flutter/lib/main.dart
2022-11-04 10:46:07 -04:00

790 lines
26 KiB
Dart

import 'dart:collection';
import 'package:dash/utils/dbhelper_sqflite.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
// import 'package:path/path.dart';
// import 'package:sqflite/sqflite.dart';
import 'package:dash/models/car.dart';
import 'package:dash/models/txn.dart';
// import 'package:flutter/src/widgets/form.dart';
void main() async {
runApp(
ChangeNotifierProvider(
create: (context) => GarageModel(),
child: const MaterialApp(
title: 'Dashboard',
home: MyApp(),
/* initialRoute: '/',
routes: {
'/': (context) => const MyApp(),
'/about': (context) => const AboutScreen(),
'/newcar': (context) => const NewCarScreen(),
'/detail': (context) => const CarDetailScreen(),
'/edit': (context) => EditCarScreen(),
}, */
),
),
);
// WidgetsFlutterBinding.ensureInitialized(); // is this necessary?
}
class GarageModel extends ChangeNotifier {
/// internal state of garage
late List<Car> _cars = [];
final DbHelperSqlite _dbHelper = DbHelperSqlite.instance;
UnmodifiableListView<Car> get cars => UnmodifiableListView(_cars);
void add(Car car) {
// _cars.add(car);
_dbHelper.insertCar(car);
getCars(); // prob nec to update `id`
notifyListeners();
}
void update(Car car, int carIndex) {
_cars[carIndex] = car; // replace list car with new values
_dbHelper.updateCar(car);
print('updated car ${car.toMap()}');
getCars();
// print(_cars);
notifyListeners();
}
void delete(Car car) {
// ignore: no_leading_underscores_for_local_identifiers
_cars.removeWhere((_car) => _car.id == car.id);
_dbHelper.deleteCar(car);
print('$car with id ${car.id} deleted');
getCars();
notifyListeners();
}
void clearCarList() {
// clear _cars; doesn't affect database
// useful for clearing cars that didn't make it into the db
_cars.clear();
notifyListeners();
}
void deleteAllCars() {
// delete rows from CarTable
_cars.clear();
_dbHelper.deleteAll();
notifyListeners();
}
Future<void> getCars() async {
// _cars.clear();
print('getcars');
_cars = await _dbHelper.fetchCars();
print(_cars);
// notifyListeners(); //for some reason this inits db infinitely
}
}
class Garage extends StatefulWidget {
const Garage({super.key});
@override
State<Garage> createState() => _Garage();
}
class _Garage extends State<Garage> {
late Future _cars;
@override
void initState() {
_cars = Provider.of<GarageModel>(context, listen: false).getCars();
// _cars = Provider.of<GarageModel>(context).getCars();
super.initState();
}
@override
Widget build(BuildContext context) {
return FutureBuilder(
future: _cars,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(
child: CircularProgressIndicator(),
);
} else {
if (snapshot.error != null) {
return const Center(
child: Text('An error occurred'),
);
} else {
return Expanded(
child: Consumer<GarageModel>(builder: (context, garage, child) {
return ListView.separated(
// padding: const EdgeInsets.all(8),
itemCount: garage._cars.length,
itemBuilder: (context, index) => ListTile(
leading: const Icon(Icons.directions_car),
title: Text(garage.cars[index].nickname ?? "nick_ph"),
subtitle: Text(garage.cars[index].vin ?? "vin_ph"),
/* trailing: IconButton(
onPressed: Navigator.push(
context,
MaterialPageRoute(
builder: (context) => EditCarScreen(
car: garage._cars[index], carIndex: index)),
),
icon: Icons.edit),
),
onTap: () => Navigator.pushNamed(context, '/detail'), */
onTap: () {
Navigator.of(context).push(
// context,
MaterialPageRoute(
builder: (context) => CarDetailScreen(
car: garage._cars[index], carIndex: index),
),
);
},
),
separatorBuilder: (BuildContext context, int index) =>
const Divider(),
);
}));
}
}
},
);
}
}
class MyDrawer extends StatelessWidget {
const MyDrawer({super.key});
@override
Widget build(BuildContext context) {
return Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
const SizedBox(
height: 80.0,
child: DrawerHeader(
decoration: BoxDecoration(
color: Color.fromARGB(255, 185, 47, 5),
),
child: Text(
'Options',
style: TextStyle(
color: Colors.white,
fontSize: 18,
),
),
),
),
ListTile(
leading: const Icon(Icons.settings),
title: const Text('Settings'),
onTap: () {
print('settings');
},
// do something
),
ListTile(
leading: const Icon(Icons.sync),
title: const Text('Setup Database'),
onTap: () {
print('dbsetup');
},
),
ListTile(
leading: const Icon(Icons.info_outline),
title: const Text('About'),
onTap: () {
Navigator.of(context).push(
MaterialPageRoute(builder: (context) => const AboutScreen()));
},
),
],
),
);
}
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
var garage = context.watch<GarageModel>(); // testing
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: const Text('Dashboard'),
),
drawer: const MyDrawer(),
body: Container(
padding: const EdgeInsets.all(32),
child: Column(
children: [
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.clearCarList()),
// onPressed: (() => VoidCallback),
onLongPress: () {
garage.deleteAllCars();
// VoidCallback;
},
child: Row(
children: const <Widget>[
Icon(Icons.delete),
Text('Remove All Cars'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.getCars()),
// onPressed: (() => VoidCallback),
child: Row(
children: const <Widget>[
Icon(Icons.sync),
Text('Refresh garage'),
],
),
),
),
const Garage(), // list of cars in garage
],
),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.add),
onPressed: () {
Navigator.push(context,
MaterialPageRoute(builder: (context) => const NewCarScreen()));
},
),
);
}
}
class AboutScreen extends StatelessWidget {
// change to AboutDialog
const AboutScreen(
{super.key}); //https://api.flutter.dev/flutter/material/AboutDialog-class.html
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('About Page'),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: const Center(
child: Text('About Page Text, Lorum Ipsum and whatnot.'),
));
}
}
class NewCarScreen extends StatefulWidget {
const NewCarScreen({super.key});
@override
State<NewCarScreen> createState() => _NewCarScreenState();
}
class _NewCarScreenState extends State<NewCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
Car _car = Car(); //initialization is required
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Add New Car'),
backgroundColor: Colors.indigo,
),
body: Container(
padding: const EdgeInsets.all(32),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => _car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => _car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => _car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => _car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 16.0),
child: ElevatedButton(
// onPressed: () => _onSubmit(context),
onPressed: () {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form
.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage =
context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
Icon(Icons.add),
Text('Add Car'),
],
),
),
),
],
),
),
),
);
}
_onSubmit(context) async {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage = context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
}
}
class CarDetailScreen extends StatelessWidget {
const CarDetailScreen({super.key, required this.car, required this.carIndex});
final Car car;
final int carIndex; //pass this thru for edit screen
@override
Widget build(BuildContext context) {
// const Car car = context.read<GarageModel>()._cars[index];
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: Text(car.nickname ?? ""),
),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
const Text("plh img picker"),
Center(
child: Ink(
decoration: const ShapeDecoration(
color: Colors.lightBlue, shape: CircleBorder()),
child: IconButton(
icon: const Icon(Icons.edit),
color: Colors.white,
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
EditCarScreen(car: car, carIndex: carIndex)),
);
},
),
),
),
],
),
IconButton(
iconSize: 48.0,
icon: const Icon(Icons.directions_car),
onPressed: (() => VoidCallback),
),
Text("Nickname: ${car.nickname}"),
Text("VIN: ${car.vin}"),
Text("License Plate: ${car.plate}"),
Text("Mileage: ${car.mileage.toString()}"),
],
),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.edit),
onPressed: (() => VoidCallback), //add Transaction
),
);
}
}
class EditCarScreen extends StatefulWidget {
EditCarScreen({super.key, required this.car, required this.carIndex});
Car car;
int carIndex;
@override
State<EditCarScreen> createState() => _EditCarScreenState();
}
class _EditCarScreenState extends State<EditCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
late Car car = widget.car; //initialization is required
late int carIndex = widget.carIndex;
@override
Widget build(BuildContext context) {
var garage = context.read<GarageModel>();
return Scaffold(
appBar: AppBar(
title: Text("Edit ${car.nickname}"),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: Container(
padding: const EdgeInsets.all(16),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
initialValue: car.nickname,
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
initialValue: car.vin,
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
initialValue: car.plate,
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
initialValue: car.mileage.toString(),
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: () {
final updateForm = _formKey.currentState!;
if (updateForm.validate()) {
//validate form
updateForm
.save(); //save values (reqd before putting them anywhere)
/* setState(() {
//modify state of car (necessary?)
car = garage._cars[carIndex];
car
vin: car.vin,
nickname: car.nickname,
plate: car.plate,
mileage: car.mileage);
}); //implement Provider */
garage.update(car, carIndex);
updateForm.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
//expand these children, too tight
Icon(Icons.save),
Text('Save Changes'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
onLongPress: () {
garage.delete(car);
Navigator.pushNamed(context, '/');
},
child: Row(children: const <Widget>[
Icon(Icons.delete),
Text('Delete'),
]),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
child: Row(children: const <Widget>[
Icon(Icons.sync_alt),
Text('enable/disable'),
]),
),
),
],
),
),
),
);
}
}
class NewTxn extends StatefulWidget {
NewTxn({super.key, required this.car});
Car car;
@override
State<NewTxn> createState() => _NewTxnState();
}
class _NewTxnState extends State<NewTxn> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
late Car car = widget.car; //initialization is required
Txn txn = Txn();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Edit ${car.nickname}"),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: Container(
padding: const EdgeInsets.all(16),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
/* RadioListTile(
value: ,
), */
TextFormField(
initialValue: car.vin,
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
initialValue: car.plate,
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
initialValue: car.mileage.toString(),
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: () {
final updateForm = _formKey.currentState!;
if (updateForm.validate()) {
//validate form
updateForm
.save(); //save values (reqd before putting them anywhere)
/* setState(() {
//modify state of car (necessary?)
car = garage._cars[carIndex];
car
vin: car.vin,
nickname: car.nickname,
plate: car.plate,
mileage: car.mileage);
}); //implement Provider */
garage.update(car, carIndex);
updateForm.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
//expand these children, too tight
Icon(Icons.save),
Text('Save Changes'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
onLongPress: () {
garage.delete(car);
Navigator.pushNamed(context, '/');
},
child: Row(children: const <Widget>[
Icon(Icons.delete),
Text('Delete'),
]),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
child: Row(children: const <Widget>[
Icon(Icons.sync_alt),
Text('enable/disable'),
]),
),
),
],
),
),
),
);
}
}
/* class IconPicker extends SimpleDialog {
IconPicker({super.key})
@override
Widget build (BuildContext context) {
return SimpleDialog(
title: const Text("Pick an icon"),
);
}
} */