136 lines
4.0 KiB
Dart
136 lines
4.0 KiB
Dart
import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:dubp/dubp.dart';
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import 'dart:io';
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import 'dart:async';
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import 'package:path_provider/path_provider.dart';
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class ChangePinScreen extends StatefulWidget {
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const ChangePinScreen(
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{Key keyMyWallets, @required this.walletName, @required this.oldPin})
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: super(key: keyMyWallets);
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final String walletName;
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final oldPin;
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@override
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ChangePinScreenState createState() => ChangePinScreenState();
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}
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class ChangePinScreenState extends State<ChangePinScreen> {
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Directory appPath;
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TextEditingController _newPin = new TextEditingController();
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bool ischangedPin = false;
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NewWallet newWalletFile;
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Future<NewWallet> get badWallet => null;
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void initState() {
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super.initState();
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DubpRust.setup();
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changePin(widget.walletName, widget.oldPin);
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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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resizeToAvoidBottomInset: false,
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appBar: AppBar(
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title: SizedBox(
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height: 25,
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child: Text(widget.walletName),
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)),
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body: Center(
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child: SafeArea(
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child: Column(children: <Widget>[
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SizedBox(height: 80),
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Text(
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'Veuillez tapper votre code secret pour en générer un nouveau :',
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: 17.0,
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color: Colors.grey[600],
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fontWeight: FontWeight.w400),
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),
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SizedBox(height: 30),
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Container(
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child: Stack(
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alignment: Alignment.centerRight,
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children: <Widget>[
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TextField(
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enabled: true,
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controller: this._newPin,
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maxLines: 1,
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textAlign: TextAlign.center,
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decoration: InputDecoration(),
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style: TextStyle(
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fontSize: 30.0,
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color: Colors.black,
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fontWeight: FontWeight.bold)),
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IconButton(
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icon: Icon(Icons.replay),
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color: Color(0xffD28928),
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onPressed: () {
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changePin(widget.walletName, widget.oldPin);
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},
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),
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],
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),
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),
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SizedBox(height: 30),
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SizedBox(
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width: 200,
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height: 50,
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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elevation: 12,
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primary: Colors.green[400], //Color(0xffFFD68E), // background
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onPrimary: Colors.black, // foreground
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),
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onPressed: (ischangedPin)
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? () => storeWallet(widget.walletName)
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: null,
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child: Text('Confirmer', style: TextStyle(fontSize: 28))),
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)
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]))));
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}
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Future<NewWallet> changePin(_name, _oldPin) async {
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try {
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final appPath = await _localPath;
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final _walletFile = Directory('$appPath/wallets/$_name');
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final _dewif =
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File(_walletFile.path + '/wallet.dewif').readAsLinesSync()[0];
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newWalletFile = await DubpRust.changeDewifPin(
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dewif: _dewif,
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oldPin: _oldPin,
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);
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_newPin.text = newWalletFile.pin;
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ischangedPin = true;
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setState(() {});
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return newWalletFile;
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} catch (e) {
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print('Impossible de changer le code PIN.');
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return badWallet;
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}
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}
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Future storeWallet(_name) async {
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final appPath = await _localPath;
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final Directory walletNameDirectory = Directory('$appPath/wallets/$_name');
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final walletFile = File('${walletNameDirectory.path}/wallet.dewif');
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walletFile.writeAsString('${this.newWalletFile.dewif}');
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Navigator.pop(context);
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return _name;
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}
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Future<String> get _localPath async {
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final directory = await getApplicationDocumentsDirectory();
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return directory.path;
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}
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}
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