flutter_login_widget/lib/plugins/login/forgot_password.dart

import 'package:flutter/material.dart';
import 'package:flutter_login/flutter_login_view.dart';

import '../../extensions/widget.dart';
import '../dialog/alert_dialog.dart';
import '../form/inputs/validators/email_validator.dart';

class ForgotPassword extends StatefulWidget {
  @override
  _ForgotPasswordState createState() => _ForgotPasswordState();
}

class _ForgotPasswordState extends State<ForgotPassword>
    with NavigateWidgetMixin {
  String? email;
  bool showError = false;

  @override
  Widget build(BuildContext context) => Material(
        child: Scaffold(
          body: context.appShell().screens.getAppshellScreenWrapper(
                context,
                backgroundImg:
                    context.appShell().config.loginOptions.backgroundImage,
                child: Column(
                  children: [
                    Expanded(
                      child: ListView(
                        children: [
                          Container(
                            alignment: Alignment.topLeft,
                            padding: const EdgeInsets.only(
                              top: 27,
                              left: 5,
                            ),
                            child: context
                                .appShell()
                                .config
                                .appTheme
                                .buttons
                                .backButton(
                                  context: context,
                                ),
                          ),
                          Container(
                            alignment: Alignment.topCenter,
                            child: Column(
                              children: [
                                Text(
                                  context
                                      .translate('forgot_password.text.title'),
                                  style: Theme.of(context).textTheme.headline6,
                                ),
                                Padding(
                                  padding: const EdgeInsets.all(30.0),
                                  child: Text(
                                    context
                                        .translate('forgot_password.text.body'),
                                    style:
                                        Theme.of(context).textTheme.subtitle1,
                                    textAlign: TextAlign.left,
                                  ),
                                ),
                              ],
                            ),
                          ),
                          Padding(
                            padding: const EdgeInsets.only(left: 30, right: 30),
                            child: Column(
                              children: [
                                const Padding(
                                  padding: EdgeInsets.only(bottom: 20),
                                ),
                                context
                                    .appShell()
                                    .config
                                    .appTheme
                                    .inputs
                                    .textField(
                                      title: context.translate(
                                        'forgot_password.input.email',
                                      ),
                                      validators: [
                                        EmailValidator(
                                          errorMessage: context.translate(
                                            'forgot_password.error.invalid_email',
                                          ),
                                        )
                                      ],
                                      onChange: (value, valid) {
                                        setState(() {
                                          showError = false;
                                        });
                                        if (valid) email = value;
                                      },
                                    ),
                                if (showError) ...[
                                  Text(
                                    context.translate(
                                      'forgot_password.error.email_does_not_exist',
                                    ),
                                    style: Theme.of(context)
                                        .textTheme
                                        .bodyText2!
                                        .copyWith(
                                          color: Theme.of(context).errorColor,
                                        ),
                                  ),
                                ],
                                const Padding(
                                  padding: EdgeInsets.only(bottom: 30),
                                ),
                              ],
                            ),
                          ),
                        ],
                      ),
                    ),
                    Container(
                      margin: const EdgeInsets.symmetric(horizontal: 30),
                      padding: const EdgeInsets.only(bottom: 40.0),
                      child: context
                          .appShell()
                          .config
                          .appTheme
                          .buttons
                          .primaryButton(
                            context: context,
                            child: Text(
                              context
                                  .translate('forgot_password.button.submit'),
                              style: Theme.of(context).textTheme.button,
                            ),
                            onPressed: () async {
                              if (email != null) {
                                setState(() {
                                  showError = false;
                                });

                                var result = await context
                                    .appShellBackend()
                                    .forgotPassword(email!);

                                if (result) {
                                  await context.appShell().dialogs.showDialog(
                                        context: context,
                                        builder: (ctx) => AppShellAlertDialog
                                            .singleButtonIcon(
                                          title:
                                              'forgot_password.dialog.text.title',
                                          body: context.translate(
                                            'forgot_password.dialog.text.body',
                                            arguments: [email!],
                                          ),
                                          icon: Icon(
                                            context
                                                .appShell()
                                                .config
                                                .appTheme
                                                .icons
                                                .forgotPasswordMail,
                                            size: 70,
                                          ),
                                          buttonText:
                                              'forgot_password.dialog.text.button',
                                          onPressed: () {
                                            Navigator.of(ctx).pop();
                                            context
                                                .appShell()
                                                .screens
                                                .openLoginScreen(context);
                                          },
                                        ),
                                      );
                                } else {
                                  setState(() {
                                    showError = true;
                                  });
                                }
                              }
                            },
                          ),
                    ),
                  ],
                ),
              ),
        ),
      );
}