doctor_app_flutter/lib/screens/auth/login_screen.dart

import 'package:doctor_app_flutter/config/config.dart';
import 'package:doctor_app_flutter/config/size_config.dart';
import 'package:doctor_app_flutter/core/enum/viewstate.dart';
import 'package:doctor_app_flutter/core/model/hospitals/get_hospitals_response_model.dart';
import 'package:doctor_app_flutter/core/viewModel/authentication_view_model.dart';
import 'package:doctor_app_flutter/screens/auth/verification_methods_screen.dart';
import 'package:doctor_app_flutter/util/helpers.dart';
import 'package:doctor_app_flutter/util/translations_delegate_base.dart';
import 'package:doctor_app_flutter/widgets/shared/app_texts_widget.dart';
import 'package:doctor_app_flutter/widgets/shared/buttons/app_buttons_widget.dart';
import 'package:doctor_app_flutter/widgets/shared/loader/gif_loader_dialog_utils.dart';
import 'package:doctor_app_flutter/widgets/shared/text_fields/app-textfield-custom.dart';
import 'package:doctor_app_flutter/widgets/shared/text_fields/app_text_form_field.dart';
import 'package:flutter/material.dart';
import 'package:hexcolor/hexcolor.dart';
import 'package:provider/provider.dart';

import '../../widgets/shared/app_scaffold_widget.dart';

class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  String platformImei;
  bool allowCallApi = true;

  //TODO change AppTextFormField to AppTextFormFieldCustom
  final loginFormKey = GlobalKey<FormState>();
  var projectIdController = TextEditingController();
  var userIdController = TextEditingController();
  var passwordController = TextEditingController();
  List<GetHospitalsResponseModel> projectsList = [];
  FocusNode focusPass = FocusNode();
  FocusNode focusProject = FocusNode();
  AuthenticationViewModel authenticationViewModel;

  @override
  Widget build(BuildContext context) {
    authenticationViewModel = Provider.of<AuthenticationViewModel>(context);
    return AppScaffold(
      isShowAppBar: false,
      backgroundColor: HexColor('#F8F8F8'),
      body: SafeArea(
        child: ListView(children: <Widget>[
          Container(
              margin: EdgeInsetsDirectional.fromSTEB(30, 0, 30, 30),
              alignment: Alignment.topLeft,
              child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: <Widget>[
                        //TODO Use App Text rather than text
                        Container(
                            child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: <Widget>[
                            Column(
                              crossAxisAlignment: CrossAxisAlignment.start,
                              children: <Widget>[
                                SizedBox(
                                  height: 30,
                                ),
                              ],
                            ),
                            Column(
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: [
                                  SizedBox(
                                    height: 10,
                                  ),
                                  Text(
                                    TranslationBase.of(context).welcomeTo,
                                    style: TextStyle(
                                        fontSize: 16,
                                        fontWeight: FontWeight.w600,
                                        fontFamily: 'Poppins'),
                                  ),
                                  Text(
                                    TranslationBase.of(context)
                                        .drSulaimanAlHabib,
                                    style: TextStyle(
                                        color: Color(0xFF2B353E),
                                        fontWeight: FontWeight.bold,
                                        fontSize: SizeConfig.isMobile
                                            ? 24
                                            : SizeConfig.realScreenWidth *
                                                0.029,
                                        fontFamily: 'Poppins'),
                                  ),
                                  Text(
                                    "Doctor App",
                                    style: TextStyle(
                                        fontSize: SizeConfig.isMobile
                                            ? 16
                                            : SizeConfig.realScreenWidth *
                                                0.030,
                                        fontWeight: FontWeight.w600,
                                        color: Color(0xFFD02127)),
                                  ),
                                ]),
                          ],
                        )),
                        SizedBox(
                          height: 40,
                        ),
                        Form(
                          key: loginFormKey,
                          child: Column(
                            mainAxisAlignment: MainAxisAlignment.spaceBetween,
                            children: <Widget>[
                              Container(
                                width: SizeConfig.realScreenWidth * 0.90,
                                height: SizeConfig.realScreenHeight * 0.65,
                                child: Column(
                                    crossAxisAlignment:
                                        CrossAxisAlignment.start,
                                    children: [
                                      buildSizedBox(),
                                      AppTextFieldCustom(
                                        hintText:
                                            TranslationBase.of(context).enterId,
                                        hasBorder: true,
                                        controller: userIdController,
                                        onChanged: (value) {
                                          if (value != null)
                                            setState(() {
                                              authenticationViewModel.userInfo
                                                  .userID = value.trim();
                                            });
                                        },
                                      ),
                                      buildSizedBox(),
                                      AppTextFieldCustom(
                                        hintText: TranslationBase.of(context)
                                            .enterPassword,
                                        hasBorder: true,
                                        isSecure: true,
                                        controller: passwordController,
                                        onChanged: (value) {
                                          if (value != null)
                                            setState(() {
                                              authenticationViewModel.userInfo
                                                  .password = value.trim();
                                            });
                                          // if(allowCallApi) {
                                          this.getProjects(
                                              authenticationViewModel
                                                  .userInfo.userID);
                                          //   setState(() {
                                          //     allowCallApi = false;
                                          //   });
                                          // }
                                        },
                                        onClick: () {},
                                      ),
                                      buildSizedBox(),
                                      AppTextFieldCustom(
                                        hintText: TranslationBase.of(context)
                                            .selectYourProject,
                                        hasBorder: true,
                                        controller: projectIdController,
                                        isTextFieldHasSuffix: true,
                                        enabled: false,
                                        onClick: () {
                                          Helpers.showCupertinoPicker(
                                              context,
                                              projectsList,
                                              'facilityName',
                                              onSelectProject,
                                              authenticationViewModel);
                                        },
                                      ),
                                      buildSizedBox()
                                    ]),
                              ),
                            ],
                          ),
                        )
                      ],
                    )
                  ]))
        ]),
      ),
      bottomSheet: Container(
        height: 90,
        width: double.infinity,
        child: Center(
          child: FractionallySizedBox(
            widthFactor: 0.9,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.end,
              children: <Widget>[
                AppButton(
                  title: TranslationBase.of(context).login,
                  color: AppGlobal.appRedColor,
                  fontWeight: FontWeight.w600,
                  disabled: authenticationViewModel.userInfo.userID == null ||
                      authenticationViewModel.userInfo.password == null,
                  onPressed: () {
                    login(context);
                  },
                ),
                SizedBox(
                  height: 25,
                )
              ],
            ),
          ),
        ),
      ),
    );
  }

  SizedBox buildSizedBox() {
    return SizedBox(
      height: 20,
    );
  }

  login(
    context,
  ) async {
    if (loginFormKey.currentState.validate()) {
      loginFormKey.currentState.save();
      GifLoaderDialogUtils.showMyDialog(context);
      await authenticationViewModel.login(authenticationViewModel.userInfo);
      if (authenticationViewModel.state == ViewState.ErrorLocal) {
        GifLoaderDialogUtils.hideDialog(context);
        Helpers.showErrorToast(authenticationViewModel.error);
      } else {
        GifLoaderDialogUtils.hideDialog(context);
        authenticationViewModel.setUnverified(true, isFromLogin: true);
        // Navigator.of(context).pushReplacement(
        //   MaterialPageRoute(
        //     builder: (BuildContext context) =>
        //         VerificationMethodsScreen(
        //           password: authenticationViewModel.userInfo.password,
        //           isFromLogin: true,
        //     ),
        //   ),
        // );
      }
    }
  }

  onSelectProject(index) {
    setState(() {
      authenticationViewModel.userInfo.projectID =
          projectsList[index].facilityId;
      projectIdController.text = projectsList[index].facilityName;
    });

    primaryFocus.unfocus();
  }

  String memberID = "";
  getProjects(memberID) async {
    if (memberID != null && memberID != '') {
      if (this.memberID != memberID) {
        this.memberID = memberID;
        await authenticationViewModel.getHospitalsList(memberID);
        if (authenticationViewModel.state == ViewState.Idle) {
          projectsList = authenticationViewModel.hospitals;
          setState(() {
            authenticationViewModel.userInfo.projectID =
                projectsList[0].facilityId;
            projectIdController.text = projectsList[0].facilityName;
          });
        }
      }
    }
  }
}