gecko/lib/screens/myWallets/unlocking_wallet.dart

// ignore_for_file: avoid_print

import 'dart:async';
import 'package:flutter/services.dart';
import 'package:gecko/models/chest_data.dart';
import 'package:gecko/providers/substrate_sdk.dart';
import 'package:gecko/providers/my_wallets.dart';
import 'package:gecko/models/wallet_data.dart';
import 'package:gecko/providers/wallet_options.dart';
import 'package:flutter/material.dart';
import 'package:gecko/screens/myWallets/choose_chest.dart';
import 'package:pin_code_fields/pin_code_fields.dart';
import 'package:provider/provider.dart';
import 'package:gecko/globals.dart';

// ignore: must_be_immutable
class UnlockingWallet extends StatelessWidget {
  UnlockingWallet({Key? keyUnlockWallet, required this.wallet})
      : super(key: keyUnlockWallet);
  WalletData? wallet;
  late int currentChestNumber;
  late ChestData currentChest;
  bool canUnlock = true;

  // ignore: close_sinks
  StreamController<ErrorAnimationType>? errorController;
  final formKey = GlobalKey<FormState>();
  Color? pinColor = const Color(0xffF9F9F1);
  var walletPin = '';

  @override
  Widget build(BuildContext context) {
    SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
    WalletOptionsProvider _walletOptions =
        Provider.of<WalletOptionsProvider>(context);
    // final double statusBarHeight = MediaQuery.of(context).padding.top;

    currentChestNumber = configBox.get('currentChest');
    currentChest = chestBox.get(currentChestNumber)!;

    int _pinLenght = _walletOptions.getPinLenght(wallet!.number);
    errorController = StreamController<ErrorAnimationType>();

    return Scaffold(
        backgroundColor: backgroundColor,
        body: SafeArea(
          child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Stack(children: <Widget>[
                  Positioned(
                    top: 10, //statusBarHeight + 10,
                    left: 15,
                    child: Builder(
                      builder: (context) => IconButton(
                        key: const Key('popButton'),
                        icon: const Icon(
                          Icons.arrow_back,
                          color: Colors.black,
                          size: 30,
                        ),
                        onPressed: () => Navigator.pop(context),
                      ),
                    ),
                  ),
                  Column(children: <Widget>[
                    SizedBox(height: isTall ? 100 : 20),
                    Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: <Widget>[
                          currentChest.imageFile == null
                              ? Image.asset(
                                  'assets/chests/${currentChest.imageName}',
                                  width: isTall ? 130 : 100,
                                )
                              : Image.file(
                                  currentChest.imageFile!,
                                  width: isTall ? 130 : 100,
                                ),
                          const SizedBox(width: 5),
                          SizedBox(
                              width: 250,
                              child: Text(
                                currentChest.name!,
                                textAlign: TextAlign.center,
                                style: const TextStyle(
                                    fontSize: 25,
                                    color: Colors.black,
                                    fontWeight: FontWeight.w700),
                              )),
                        ]),
                    SizedBox(height: 30 * ratio),
                    const SizedBox(
                        width: 400,
                        child: Text(
                          'Pour déverrouiller votre coffre, composez votre code secret à l’abri des lézards indiscrets :',
                          style: TextStyle(
                              fontSize: 19,
                              color: Colors.black,
                              fontWeight: FontWeight.w400),
                        )),
                    SizedBox(height: 40 * ratio),
                    pinForm(context, _pinLenght),
                    SizedBox(height: 3 * ratio),
                    if (canUnlock)
                      InkWell(
                        onTap: () {
                          _walletOptions.changePinCacheChoice();
                        },
                        child: Row(children: [
                          const SizedBox(height: 30),
                          const Spacer(),
                          Icon(
                            configBox.get('isCacheChecked')
                                ? Icons.check_box
                                : Icons.check_box_outline_blank,
                            color: orangeC,
                          ),
                          const SizedBox(width: 8),
                          Text(
                            'Garder ce code en mémoire 15 minutes',
                            style: TextStyle(
                                fontSize: 16, color: Colors.grey[700]),
                          ),
                          const Spacer()
                        ]),
                      ),
                    const SizedBox(height: 10),
                    if (canUnlock)
                      InkWell(
                          key: const Key('chooseChest'),
                          onTap: () {
                            Navigator.push(
                              context,
                              MaterialPageRoute(builder: (context) {
                                return const ChooseChest();
                              }),
                            );
                          },
                          child: SizedBox(
                            width: 400,
                            height: 50,
                            child: Center(
                              child: Text(
                                'Changer de coffre',
                                style: TextStyle(
                                    fontSize: 22,
                                    color: orangeC,
                                    fontWeight: FontWeight.w600),
                              ),
                            ),
                          )),
                  ]),
                ]),
              ]),
        ));
  }

  Widget pinForm(context, _pinLenght) {
    // var _walletPin = '';
// ignore: close_sinks
    StreamController<ErrorAnimationType> errorController =
        StreamController<ErrorAnimationType>();
    TextEditingController _enterPin = TextEditingController();
    WalletOptionsProvider _walletOptions =
        Provider.of<WalletOptionsProvider>(context);
    MyWalletsProvider _myWalletProvider =
        Provider.of<MyWalletsProvider>(context);
    SubstrateSdk _sub = Provider.of<SubstrateSdk>(context, listen: false);
    FocusNode pinFocus = FocusNode();

    WalletData defaultWallet = _myWalletProvider.getDefaultWallet();

    // defaultWallet.address = null;
    if (defaultWallet.address == null) {
      canUnlock = false;
      return Text(
        'Impossible de retrouver votre\nportefeuille par défaut.\nID: ${defaultWallet.id()}',
        textAlign: TextAlign.center,
        style: const TextStyle(
            color: Colors.redAccent, fontWeight: FontWeight.w500),
      );
    }

    return Form(
      key: formKey,
      child: Padding(
          padding: EdgeInsets.symmetric(vertical: 5 * ratio, horizontal: 30),
          child: PinCodeTextField(
            focusNode: pinFocus,
            autoFocus: true,
            appContext: context,
            pastedTextStyle: TextStyle(
              color: Colors.green.shade600,
              fontWeight: FontWeight.bold,
            ),
            length: _pinLenght,
            obscureText: true,
            obscuringCharacter: '*',
            animationType: AnimationType.fade,
            validator: (v) {
              if (v!.length < _pinLenght) {
                return "Votre code PIN fait $_pinLenght caractères";
              } else {
                return null;
              }
            },
            pinTheme: PinTheme(
              activeColor: pinColor,
              borderWidth: 4,
              shape: PinCodeFieldShape.box,
              borderRadius: BorderRadius.circular(5),
              fieldHeight: 50 * ratio,
              fieldWidth: 50,
              activeFillColor: Colors.black,
            ),
            cursorColor: Colors.black,
            animationDuration: const Duration(milliseconds: 300),
            textStyle: const TextStyle(fontSize: 20, height: 1.6),
            backgroundColor: const Color(0xffF9F9F1),
            enableActiveFill: false,
            errorAnimationController: errorController,
            controller: _enterPin,
            keyboardType: TextInputType.visiblePassword,
            boxShadows: const [
              BoxShadow(
                offset: Offset(0, 1),
                color: Colors.black12,
                blurRadius: 10,
              )
            ],
            onCompleted: (_pin) async {
              _myWalletProvider.pinCode = _pin.toUpperCase();
              final isValid = await _sub.checkPassword(
                  defaultWallet.address!, _pin.toUpperCase());

              if (!isValid) {
                await Future.delayed(const Duration(milliseconds: 50));
                errorController.add(ErrorAnimationType
                    .shake); // Triggering error shake animation
                pinColor = Colors.red[600];
                _myWalletProvider.pinCode = _myWalletProvider.mnemonic = '';
                _walletOptions.reloadBuild();
                pinFocus.requestFocus();
              } else {
                pinColor = Colors.green[400];
                _myWalletProvider.resetPinCode();
                Navigator.pop(context, _pin.toUpperCase());
              }
            },
            onChanged: (value) {
              if (pinColor != const Color(0xFFA4B600)) {
                pinColor = const Color(0xFFA4B600);
              }
            },
          )),
    );
  }
}