// Flutter
import 'package:flutter/material.dart';
import 'package:flutter_expense_tracker/db.dart';
// Local
import '/models/expense.dart';
import '/models/frequency.dart';
class ExpensePage extends StatefulWidget {
const ExpensePage({
super.key,
});
@override
State<ExpensePage> createState() => _ExpensePageState();
}
class _ExpensePageState extends State<ExpensePage> {
refresh() {
setState(() {});
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
return FutureBuilder<List<Expense>>(
future: DatabaseHelper.instance.getExpenses(),
builder: (BuildContext context, AsyncSnapshot<List<Expense>> snapshot) {
if (!snapshot.hasData) {
return Center(child: Text('Loading...'));
}
snapshot.data!.sort(
(a, b) => (b.calcComparableCost() - a.calcComparableCost()).toInt(),
);
return snapshot.data!.isEmpty
? Text(
"Add expenses to get started.",
softWrap: true,
)
: ListView.builder(
itemCount: snapshot.data!.length,
itemBuilder: (_, index) {
List<Expense> expenses = snapshot.data!;
final Expense curr = expenses[index];
final String estimateSymbolYearly = curr
.frequency.timesPerYear
.toStringAsFixed(2)
.endsWith(".00") &&
curr
.calcComparableCost()
.toStringAsFixed(3)
.endsWith("0")
? ""
: "~";
final String estimateSymbolDaily = curr.frequency.numDays
.toStringAsFixed(2)
.endsWith(".00") &&
curr
.calcComparableCostDaily()
.toStringAsFixed(3)
.endsWith("0")
? ""
: "~";
return Padding(
padding: const EdgeInsets.all(4.0),
child: Dismissible(
key: Key(curr.id!.toString()),
background: Container(
color: Colors.red,
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Icon(Icons.delete),
Text("Delete"),
],
),
),
secondaryBackground: Container(
color: Colors.orange,
child: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: [
Text("Edit"),
Icon(Icons.edit),
],
),
),
onDismissed: (direction) {
setState(() {
expenses.remove(curr);
switch (direction) {
case DismissDirection.startToEnd:
DatabaseHelper.instance.removeExpense(curr.id!);
break;
case DismissDirection.endToStart:
// Open an edit dialog, then remove the item from the list.
showDialog(
context: context,
builder: (_) => AlertDialog(
content: ExpenseInputDialog(
notifyParent: refresh,
expense: curr,
),
),
);
break;
default:
UnimplementedError(
"Direction ${direction.toString()} not recognized.",
);
}
});
},
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(4),
color: theme.colorScheme.onPrimary,
),
child: Padding(
padding: const EdgeInsets.all(4.0),
child: Row(
mainAxisSize: MainAxisSize.max,
children: [
Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
curr.name,
style: TextStyle(fontSize: 20.0),
),
Text(
"${curr.cost.toStringAsFixed(2)} ${curr.frequency.title}",
style: TextStyle(fontSize: 12.0),
),
],
),
Expanded(
child: Center(
child: Text(
curr.description,
style: TextStyle(
fontSize: 12.0,
),
softWrap: true,
textAlign: TextAlign.center,
),
),
),
Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
//if (curr.frequency != Frequency.daily)
Text(
"$estimateSymbolDaily${curr.calcComparableCostDaily().toStringAsFixed(2)} ${Frequency.daily.title}",
style: TextStyle(fontSize: 12.0),
),
//if (curr.frequency != Frequency.yearly)
Text(
"$estimateSymbolYearly${curr.calcComparableCost().toStringAsFixed(2)} ${Frequency.yearly.title}",
style: TextStyle(fontSize: 12.0),
),
],
),
],
),
),
),
),
);
},
);
});
}
}
class ExpenseInputDialog extends StatefulWidget {
final Function() notifyParent;
final Expense? expense;
const ExpenseInputDialog({
super.key,
required this.notifyParent,
this.expense,
});
@override
State<ExpenseInputDialog> createState() => _ExpenseInputDialogState();
}
class _ExpenseInputDialogState extends State<ExpenseInputDialog> {
final _expenseFormKey = GlobalKey<FormState>();
int? _id;
String _name = "";
double _cost = 0;
Frequency _freq = Frequency.monthly;
String _desc = "";
@override
Widget build(BuildContext context) {
if (widget.expense != null) {
_id = widget.expense!.id;
_name = widget.expense!.name;
_cost = widget.expense!.cost;
_freq = widget.expense!.frequency;
_desc = widget.expense!.description;
}
return Column(
// prevent AlertDialog from taking full vertical height.
mainAxisSize: MainAxisSize.min,
children: [
Container(
alignment: FractionalOffset.topRight,
child: IconButton(
onPressed: () {
if (widget.expense != null) {
setState(() {
DatabaseHelper.instance.addExpense(widget.expense!);
widget.notifyParent();
});
}
Navigator.of(context).pop();
},
icon: Icon(Icons.clear),
),
),
AlertDialog(
insetPadding: EdgeInsets.all(0),
title: Center(
child: widget.expense == null
? Text("New Expense")
: Text("Edit Expense"),
),
content: FutureBuilder<List<Expense>>(
future: DatabaseHelper.instance.getExpenses(),
builder: (BuildContext context,
AsyncSnapshot<List<Expense>> snapshot) {
if (!snapshot.hasData) {
return Center(child: Text('Loading...'));
}
List<Expense> expenses = snapshot.data!;
return Form(
key: _expenseFormKey,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
TextFormField(
keyboardType: TextInputType.text,
textCapitalization: TextCapitalization.words,
decoration: InputDecoration(
labelText: "Name",
hintText: "Example: Red Pocket",
hintStyle: TextStyle(fontSize: 10.0),
errorStyle: TextStyle(fontSize: 10.0),
),
initialValue: _name,
validator: (value) {
if (value!.isEmpty) {
return "Name must be provided.";
}
if (!expenses
.every((expense) => expense.name != value)) {
return "Name must be unique, already in use.";
}
return null;
},
onSaved: (value) {
_name = value!;
},
),
TextFormField(
keyboardType:
TextInputType.numberWithOptions(decimal: true),
decoration: InputDecoration(
labelText: "Cost",
hintText: "Example: 10.00",
hintStyle: TextStyle(fontSize: 10.0),
errorStyle: TextStyle(fontSize: 10.0),
),
initialValue: _cost != 0 ? _cost.toString() : "",
validator: (value) {
if (value == null || value.isEmpty) {
return "Cost must be provided.";
}
if (double.parse(value) < 0) {
return "Please use the Income page rather than having negative expenses.";
}
if (double.parse(value) < 0.01) {
return "Cost must be one hundreth (0.01) or higher.";
}
if (double.tryParse(value) == null) {
return "Cost must be a valid number.";
}
return null;
},
onSaved: (value) {
_cost = double.parse(value!);
},
),
DropdownButtonFormField(
items: Frequency.values
.map(
(freq) => DropdownMenuItem(
value: freq,
child: Row(
children: [
Text(
freq.title,
),
Padding(
padding: EdgeInsets.all(1.0),
child: Text(
" (${freq.hint})",
style: TextStyle(fontSize: 10.0),
),
),
],
),
),
)
.toList(),
value: _freq,
decoration: InputDecoration(
labelText: "Frequency",
errorStyle: TextStyle(fontSize: 10.0),
),
validator: (value) {
if (value == null) {
return "Frequency must be provided.";
}
if (!Frequency.values.contains(value)) {
return "Value not valid.";
}
return null;
},
onChanged: (value) {
_freq = value!;
},
),
TextFormField(
keyboardType: TextInputType.text,
textCapitalization: TextCapitalization.sentences,
decoration: InputDecoration(
labelText: "Description",
hintText:
"Example: 1GB data with unlimited talk & text.",
hintStyle: TextStyle(fontSize: 8.0),
errorStyle: TextStyle(fontSize: 10.0),
),
initialValue: _desc,
validator: (value) {
return null;
},
onSaved: (value) {
_desc = value!;
},
),
],
),
);
}),
actions: [
Center(
child: ElevatedButton.icon(
onPressed: () {
if (_expenseFormKey.currentState!.validate()) {
_expenseFormKey.currentState!.save();
setState(() {
Expense expense = Expense(
id: _id,
name: _name,
cost: _cost,
frequency: _freq,
description: _desc,
);
if (_id != null) {
DatabaseHelper.instance.updateExpense(
expense,
);
} else {
DatabaseHelper.instance.addExpense(
expense,
);
}
});
widget.notifyParent();
Navigator.of(context).pop();
}
},
icon: Icon(Icons.save),
label: Text('Submit'),
),
)
],
),
],
);
}
}