components/splash_module/lib/splash_page.dart

import 'package:cidade_social/app/app_store.dart';
import 'package:cidade_social/app/modules/address/dao/country_dao.dart';
import 'package:cidade_social/app/modules/address/dao/neighborhood_dao.dart';
import 'package:cidade_social/app/modules/address/dao/neighborhoodaddress_dao.dart';
import 'package:cidade_social/app/modules/auth/auth_store.dart';
import 'package:cidade_social/app/modules/splash/splash_store.dart';
import 'package:cidade_social/app/shared/components/hollow_button_components.dart';
import 'package:cidade_social/app/shared/utils/constants.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:cidade_social/app/shared/components/bottomsheet_component.dart';
import 'package:cidade_social/app/shared/loading.dart';
import 'package:flutter_mobx/flutter_mobx.dart';
import 'package:flutter_modular/flutter_modular.dart';

class SplashPage extends StatefulWidget {
  const SplashPage({Key? key}) : super(key: key);
  @override
  _SplashPageState createState() => _SplashPageState();
}

class _SplashPageState extends State<SplashPage> {
  var store = Modular.get<SplashStore>();

  onDoneLoading() async {
    var neighborhoodAddressList = await NeighborhoodAddressDAO.getList();
    var neighborhoodList = await NeighborhoodDAO.getList();
    var countryList = await CountryDAO.getList();
    if (neighborhoodList.isEmpty || neighborhoodAddressList.isEmpty || countryList.isEmpty) {
      debugPrint("## onDoneLoading sem dados no banco");
      if(await store.hasInternet == false){
        store.setInfo("Para abrir o app, precisamos carregar informações básicas para a coleta de dados offline. Por favor, conecte-se à internet e tente novamente.");
      }else if(Modular.get<AppStore>().credentialApp.isEmpty || Modular.get<AppStore>().credentialApp.isNotEmpty && Modular.get<AppStore>().credentialApp == 'FAIL'){
        store.setInfo("Para abrir o app, precisamos carregar informações básicas para a coleta de dados offline. Por favor, tente novamente. [CA]");
        store.setIsLoading(false);
        throw Exception("Credencial vazia, falha ou inválida.");
      }else{
        store.setInfo("Para abrir o app, precisamos carregar informações básicas para a coleta de dados offline. Por favor, tente novamente.");
      }
      store.setIsLoading(false);
    } else {
      debugPrint("## onDoneLoading com dados no banco");
      Modular.get<AuthStore>().verifyLoginPasswordRecorded();
    }
  }

  @override
  void initState() {
    store.getCredentialApp().then((value) {
      store.loadData().whenComplete(() => onDoneLoading());
    });

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(statusBarColor: Theme.of(context).highlightColor));
    return Observer(
      name: "SplashPage Observer",
      builder: (_) {
        return Scaffold(
          bottomSheet: const BottomSheetComponent(isSplash: true),
          body: Container(
            height: MediaQuery.of(context).size.height,
            width: MediaQuery.of(context).size.width,
            color: Theme.of(context).highlightColor,
            child: Column(
              mainAxisSize: MainAxisSize.max,
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: <Widget>[
                Image.asset(
                  "assets/icons/logo_cidade_social.png",
                  color: Colors.white,
                ),
                Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  mainAxisSize: MainAxisSize.max,
                  children: [
                    Visibility(
                      visible: store.isLoading,
                      child: const LoadingComponent(),
                    ),
                    Visibility(
                      visible: store.info.isNotEmpty,
                      child: Padding(
                        padding: const EdgeInsets.symmetric(horizontal: 10),
                        child: Text(
                          store.info,
                          textScaleFactor: 1.0,
                          textAlign: TextAlign.center,
                          style: const TextStyle(color: Colors.white, fontSize: 15),
                        ),
                      ),
                    ),
                    Visibility(
                      visible: !store.isLoading,
                      child: Container(
                        padding: const EdgeInsets.only(top: 6),
                        width: MediaQuery.of(context).size.width * 0.55,
                        child: HollowButtonComponent(
                          label: "Tente novamente",
                          onPressed: () {
                            store.setIsLoading(true);
                            store.setInfo(Constants.basicDataLoadingText);
                            store.getCredentialApp().then((value) {
                              store.loadData().whenComplete(() => onDoneLoading());
                            });
                          },
                        ),
                      ),
                    ),
                  ],
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}