mohemm-flutter-app/lib/ui/login/new_password_screen.dart

import 'package:easy_localization/src/public_ext.dart';
import 'package:flutter/material.dart';
import 'package:mohem_flutter_app/api/login_api_client.dart';
import 'package:mohem_flutter_app/app_state/app_state.dart';
import 'package:mohem_flutter_app/classes/colors.dart';
import 'package:mohem_flutter_app/classes/utils.dart';
import 'package:mohem_flutter_app/extensions/int_extensions.dart';
import 'package:mohem_flutter_app/extensions/string_extensions.dart';
import 'package:mohem_flutter_app/extensions/widget_extensions.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/widgets/button/default_button.dart';
import 'package:mohem_flutter_app/widgets/input_widget.dart';

class NewPasswordScreen extends StatefulWidget {
  NewPasswordScreen({Key? key}) : super(key: key);

  @override
  _NewPasswordScreenState createState() {
    return _NewPasswordScreenState();
  }
}

class _NewPasswordScreenState extends State<NewPasswordScreen> {
  TextEditingController password = TextEditingController();
  TextEditingController confirmPassword = TextEditingController();

  String? userName;

  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  void setNewPassword() async {
    Utils.showLoading(context);
    try {
      var genericResponseModel = await LoginApiClient().changePasswordForget(AppState().getForgetPasswordTokenID ?? "", password.text, confirmPassword.text, userName);
      Utils.hideLoading(context);
      Utils.showToast(LocaleKeys.passwordChangedSuccessfully.tr());
      Navigator.pop(context);
    } catch (ex) {
      print(ex);
      Utils.hideLoading(context);
            Utils.handleException(ex, context, (msg) {
        Utils.confirmDialog(context, msg);
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    userName ??= ModalRoute.of(context)!.settings.arguments as String;

    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.transparent,
        leading: IconButton(
          icon: const Icon(Icons.arrow_back_ios, color: MyColors.darkIconColor),
          onPressed: () => Navigator.pop(context),
        ),
      ),
      body: Column(
        children: [
          //const SizedBox(height: 23),
          Expanded(
            child: ListView(
              // mainAxisSize: MainAxisSize.min,
              // crossAxisAlignment: CrossAxisAlignment.start,
              // mainAxisAlignment: MainAxisAlignment.center,
              children: [
                LocaleKeys.setTheNewPassword.tr().toText24(isBold: true),
                LocaleKeys.typeYourNewPasswordBelow.tr().toText16(),
                16.height,
                InputWidget(
                  LocaleKeys.password.tr(),
                  "**********",
                  password,
                  onChange: (value) {
                    setState(() {});
                  },
                ),
                12.height,
                InputWidget(
                  LocaleKeys.confirmPassword.tr(),
                  "**********",
                  confirmPassword,
                  isObscureText: true,
                  onChange: (value) {
                    setState(() {});
                  },
                ),
                12.height,
                passwordConstraintsUI(LocaleKeys.doNotUseRecentPassword.tr(), true),
                8.height,
                passwordConstraintsUI(LocaleKeys.atLeastOneLowercase.tr(), checkRegEx(r'[a-z]')),
                8.height,
                passwordConstraintsUI(LocaleKeys.atLeastOneUppercase.tr(), checkRegEx(r'[A-Z]')),
                8.height,
                passwordConstraintsUI(LocaleKeys.atLeastOneNumeric.tr(), checkRegEx(r'[0-9]')),
                8.height,
                passwordConstraintsUI(LocaleKeys.minimum8Characters.tr(), password.text.length >= 8),
                8.height,
                passwordConstraintsUI(LocaleKeys.doNotAddRepeatingLetters.tr(), checkRepeatedChars(password.text)),
                8.height,
                passwordConstraintsUI(LocaleKeys.itShouldContainSpecialCharacter.tr(), checkRegEx(r'[!@#$%^&*(),.?":{}|<>]')),
                8.height,
                passwordConstraintsUI(LocaleKeys.confirmPasswordMustMatch.tr(), password.text.isNotEmpty && password.text == confirmPassword.text),
                12.height,
              ],
            ).paddingAll(21),
          ),
          DefaultButton(
                  LocaleKeys.update.tr(),
                  (!isPasswordCompliant(password.text, 8))
                      ? null
                      : () async {
                          setNewPassword();
                        })
              .insideContainer
        ],
      ),
    );
  }

  bool checkRegEx(String pattern) {
    return RegExp(pattern).hasMatch(password.text);
  }

  String recentPassword = "";

  bool checkRepeatedCharacters(String value) {
    if (value.isEmpty) {
      return false;
    }
    for (int i = 0; i < value.length; i++) {
      //if(i)
    }

    return true;
  }

  bool isPasswordCompliant(String? password, int minLength) {
    if (password == null || password.isEmpty) {
      return false;
    }

    bool hasUppercase = password.contains(RegExp(r'[A-Z]'));
    bool hasDigits = password.contains(RegExp(r'[0-9]'));
    bool hasLowercase = password.contains(RegExp(r'[a-z]'));
    bool hasSpecialCharacters = password.contains(RegExp(r'[!@#$%^&*(),.?":{}|<>]'));
    bool hasMinLength = password.length >= minLength;
    bool isMatched = password == confirmPassword.text;

    return hasDigits && hasUppercase && hasLowercase && hasSpecialCharacters && hasMinLength && isMatched && checkRepeatedChars(password);
  }

  bool checkRepeatedChars(String password) {
    bool isNonRepeatedLetters = true;
    if (password.length > 2) {
      for (int i = 0; i < password.length; i++) {
        String char = password[i];
        try {
          if (char == password[i + 1]) {
            isNonRepeatedLetters = false;
            break;
          }
        } catch (ex) {}
      }
    }
    return isNonRepeatedLetters;
  }

  Widget passwordConstraintsUI(String description, bool check) {
    return Row(
      children: [
        4.width,
        SizedBox(
          width: 12,
          height: 12,
          child: Checkbox(fillColor: MaterialStateProperty.all(MyColors.gradiantEndColor), shape: const CircleBorder(), value: check, onChanged: null),
        ),
        8.width,
        description.toText14()
      ],
    );
  }
}