369 lines
14 KiB
Dart
369 lines
14 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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import 'package:intl/intl.dart';
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import 'package:prasule/api/category.dart';
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import 'package:prasule/api/wallet.dart';
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import 'package:prasule/api/wallet_manager.dart';
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import 'package:prasule/main.dart';
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import 'package:prasule/pw/platformroute.dart';
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import 'package:prasule/util/drawer.dart';
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import 'package:prasule/util/graphs.dart';
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import 'package:prasule/util/utils.dart';
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import 'package:prasule/views/settings/settings.dart';
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import 'package:prasule/views/setup.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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/// Shows data from a [Wallet] in graphs
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class GraphView extends StatefulWidget {
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/// Shows data from a [Wallet] in graphs
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const GraphView({super.key});
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@override
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State<GraphView> createState() => _GraphViewState();
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}
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class _GraphViewState extends State<GraphView> {
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var _selectedDate = DateTime.now();
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Wallet? selectedWallet;
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List<Wallet> wallets = [];
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String? locale;
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Set<String> yearlyBtnSet = {"monthly"};
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Set<String> graphTypeSet = {"expense", "income"};
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bool get yearly => yearlyBtnSet.contains("yearly");
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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locale ??= Localizations.localeOf(context).languageCode;
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}
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List<double> generateChartData(EntryType type) {
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final d = _selectedDate.add(const Duration(days: 31));
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final data = List<double>.filled(
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yearly ? 12 : DateTime(d.year, d.month, 0).day,
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0,
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);
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if (selectedWallet == null) return [];
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for (var i = 0; i < data.length; i++) {
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final entriesForRange = selectedWallet!.entries.where(
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(element) =>
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((!yearly)
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? element.date.month == _selectedDate.month &&
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element.date.year == _selectedDate.year &&
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element.date.day == i + 1
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: element.date.month == i + 1 &&
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element.date.year == _selectedDate.year) &&
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element.type == type,
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);
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var sum = 0.0;
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for (final e in entriesForRange) {
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sum += e.data.amount;
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}
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data[i] = sum;
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}
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return data;
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}
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Future<void> loadWallet() async {
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wallets = await WalletManager.listWallets();
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if (wallets.isEmpty && mounted) {
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unawaited(
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Navigator.of(context)
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.pushReplacement(platformRoute((c) => const SetupView())),
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);
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return;
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}
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selectedWallet = wallets.first;
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setState(() {});
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}
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int? chartType;
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@override
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void initState() {
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super.initState();
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loadWallet();
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SharedPreferences.getInstance().then((s) {
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chartType = s.getInt("monthlygraph") ?? 2;
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setState(() {});
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});
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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floatingActionButton: Tooltip(
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message: AppLocalizations.of(context).changeDate,
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child: FloatingActionButton(
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child: const Icon(Icons.calendar_month),
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onPressed: () async {
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final firstDate = (selectedWallet!.entries
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..sort(
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(a, b) => a.date.compareTo(b.date),
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))
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.first
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.date;
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final newDate = await showDatePicker(
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context: context,
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initialDate: DateTime(
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_selectedDate.year,
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_selectedDate.month,
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),
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firstDate: firstDate,
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lastDate: DateTime.now(),
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initialEntryMode: yearly
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? DatePickerEntryMode.input
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: DatePickerEntryMode.calendar,
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initialDatePickerMode:
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yearly ? DatePickerMode.year : DatePickerMode.day,
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);
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if (newDate == null) return;
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_selectedDate = newDate;
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setState(() {});
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},
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),
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),
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appBar: AppBar(
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title: DropdownButton<int>(
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value:
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(selectedWallet == null) ? -1 : wallets.indexOf(selectedWallet!),
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items: [
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...wallets.map(
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(e) => DropdownMenuItem(
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value: wallets.indexOf(
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e,
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),
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child: Text(e.name),
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),
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),
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DropdownMenuItem(
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value: -1,
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child: Text(AppLocalizations.of(context).newWallet),
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),
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],
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onChanged: (v) async {
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if (v == null || v == -1) {
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await Navigator.of(context).push(
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platformRoute(
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(c) => const SetupView(
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newWallet: true,
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),
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),
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);
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wallets = await WalletManager.listWallets();
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logger.i(wallets.length);
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selectedWallet = wallets.last;
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setState(() {});
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return;
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}
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selectedWallet = wallets[v];
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setState(() {});
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},
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),
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actions: [
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PopupMenuButton(
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itemBuilder: (context) => [
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AppLocalizations.of(context).settings,
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AppLocalizations.of(context).about,
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].map((e) => PopupMenuItem(value: e, child: Text(e))).toList(),
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onSelected: (value) {
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if (value == AppLocalizations.of(context).settings) {
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Navigator.of(context)
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.push(
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platformRoute(
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(context) => const SettingsView(),
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),
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)
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.then((value) async {
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selectedWallet =
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await WalletManager.loadWallet(selectedWallet!.name);
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final s = await SharedPreferences.getInstance();
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chartType = s.getInt("monthlygraph") ?? 2;
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setState(() {});
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});
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} else if (value == AppLocalizations.of(context).about) {
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showAbout(context);
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}
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},
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),
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],
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),
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drawer: makeDrawer(context, 2),
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body: SingleChildScrollView(
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child: Center(
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child: (selectedWallet == null)
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? const CircularProgressIndicator(
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strokeWidth: 5,
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)
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: SizedBox(
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width: MediaQuery.of(context).size.width,
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height: MediaQuery.of(context).size.height,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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SegmentedButton<String>(
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segments: [
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ButtonSegment<String>(
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value: "expense",
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label: Text(AppLocalizations.of(context).expenses),
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),
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ButtonSegment<String>(
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value: "income",
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label: Text(AppLocalizations.of(context).income),
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),
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],
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selected: graphTypeSet,
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multiSelectionEnabled: true,
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onSelectionChanged: (selection) {
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graphTypeSet = selection;
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setState(() {});
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},
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),
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const SizedBox(
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height: 5,
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),
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SegmentedButton<String>(
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segments: [
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ButtonSegment<String>(
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value: "yearly",
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label: Text(AppLocalizations.of(context).yearly),
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),
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ButtonSegment<String>(
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value: "monthly",
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label: Text(AppLocalizations.of(context).monthly),
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),
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],
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selected: yearlyBtnSet,
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onSelectionChanged: (selection) async {
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yearlyBtnSet = selection;
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final s = await SharedPreferences.getInstance();
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chartType = yearly
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? (s.getInt("yearlygraph") ?? 1)
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: (s.getInt("monthlygraph") ?? 2);
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setState(() {});
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},
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),
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const SizedBox(height: 5),
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Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(8),
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color:
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Theme.of(context).colorScheme.secondaryContainer,
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),
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child: Padding(
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padding: const EdgeInsets.all(8),
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child: Column(
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children: [
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Text(
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yearly
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? AppLocalizations.of(context)
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.expensesPerYear(_selectedDate.year)
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: AppLocalizations.of(context)
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.expensesPerMonth(
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DateFormat.yMMMM(locale)
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.format(_selectedDate),
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),
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(
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height: 15,
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),
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SizedBox(
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width: MediaQuery.of(context).size.width * 0.9,
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height:
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MediaQuery.of(context).size.height * 0.35,
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child: (chartType == null)
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? const CircularProgressIndicator()
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: (chartType == 1)
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? ExpensesBarChart(
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currency: selectedWallet!.currency,
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date: _selectedDate,
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locale: locale ?? "en",
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yearly: yearly,
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expenseData: (graphTypeSet
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.contains("expense"))
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? generateChartData(
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EntryType.expense,
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)
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: [],
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incomeData: (graphTypeSet
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.contains("income"))
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? generateChartData(
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EntryType.income,
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)
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: [],
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)
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: Padding(
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padding: const EdgeInsets.all(8),
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child: ExpensesLineChart(
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currency:
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selectedWallet!.currency,
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date: _selectedDate,
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locale: locale ?? "en",
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yearly: yearly,
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expenseData: (graphTypeSet
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.contains("expense"))
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? generateChartData(
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EntryType.expense,
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)
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: [],
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incomeData: (graphTypeSet
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.contains("income"))
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? generateChartData(
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EntryType.income,
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)
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: [],
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),
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),
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),
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],
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),
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),
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),
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const SizedBox(
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height: 25,
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),
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Container(
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(8),
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color:
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Theme.of(context).colorScheme.secondaryContainer,
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),
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width: MediaQuery.of(context).size.width * 0.95,
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height: MediaQuery.of(context).size.height * 0.4,
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child: Column(
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children: [
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const SizedBox(
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height: 10,
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),
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Text(
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AppLocalizations.of(context).expensesPerCategory,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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Padding(
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padding: const EdgeInsets.all(8),
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child: CategoriesPieChart(
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symbol: selectedWallet!.currency.symbol,
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entries: selectedWallet!.entries,
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categories: selectedWallet!.categories,
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),
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),
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],
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),
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),
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],
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),
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),
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),
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),
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);
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}
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}
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