import 'package:farm_tpf/data/repository/user_repository.dart';
import 'package:farm_tpf/models/account.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_loading.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_toast.dart';
import 'package:farm_tpf/presentation/screens/profile/sc_change_password.dart';
import 'package:farm_tpf/utils/validators.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:keyboard_dismisser/keyboard_dismisser.dart';

import 'bloc_get_account.dart';

class UpdateProfileScreen extends StatefulWidget {
  static Route route() {
    return MaterialPageRoute<void>(builder: (_) => UpdateProfileScreen());
  }

  @override
  _UpdateProfileScreenState createState() => _UpdateProfileScreenState();
}

class _UpdateProfileScreenState extends State<UpdateProfileScreen> {
  final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
  final _repository = UserRepository();
  GlobalKey<FormState> _formKey = GlobalKey();
  bool _autoValidate = false;
  FlutterToast flutterToast;

  Account _account = Account();
  TextEditingController _userNameController = TextEditingController();
  TextEditingController _fullNameController = TextEditingController();
  TextEditingController _emailController = TextEditingController();
  TextEditingController _addressController = TextEditingController();

  @override
  void initState() {
    super.initState();
    flutterToast = FlutterToast(context);
    getAccountBloc.getAccount((data) {
      _account = data;
      _userNameController.text = _account.login;
      _fullNameController.text = _account.fullName.toString();
      _emailController.text = _account.email.toString();
      _addressController.text = _account.address;
    }, (err) {
      flutterToast.showToast(child: WidgetToast(message: "Lỗi tải dữ liệu"));
    });
  }

  _validateInputs() async {
    if (_formKey.currentState.validate()) {
      _formKey.currentState.save();
      LoadingDialog.showLoadingDialog(_scaffoldKey.currentContext);
      _repository.updateProfile(_account).then((value) {
        LoadingDialog.hideLoadingDialog(_scaffoldKey.currentContext);
        _scaffoldKey.currentState.showSnackBar(SnackBar(
          content: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: <Widget>[
              Text('Cập nhật thành công.'),
              Icon(Icons.done),
            ],
          ),
          backgroundColor: Colors.green,
          duration: Duration(seconds: 3),
        ));
      }).catchError((onError) {
        _scaffoldKey.currentState.showSnackBar(SnackBar(
          content: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: <Widget>[
              Text('Cập nhật không thành công.'),
              Icon(Icons.error),
            ],
          ),
          backgroundColor: Colors.red,
          duration: Duration(seconds: 3),
        ));
        LoadingDialog.hideLoadingDialog(_scaffoldKey.currentContext);
        print("error");
      });
    } else {
      _autoValidate = true;
    }
  }

  Widget _userNameField() {
    return TextFormField(
      keyboardType: TextInputType.text,
      enabled: false,
      decoration: InputDecoration(labelText: "Tài khoản"),
      controller: _userNameController,
      validator: (String value) {
        return Validators.validateNotNullOrEmpty(value, "Tài khoản");
      },
      onSaved: (newValue) {},
    );
  }

  Widget _fullNameField() {
    return TextFormField(
      keyboardType: TextInputType.text,
      decoration: InputDecoration(labelText: "Họ và tên"),
      controller: _fullNameController,
      validator: (String value) {
        return Validators.validateNotNullOrEmpty(value, "Họ và tên");
      },
      onSaved: (newValue) {
        _account.fullName = newValue;
      },
    );
  }

  Widget _emailField() {
    return TextFormField(
      keyboardType: TextInputType.emailAddress,
      decoration: InputDecoration(labelText: "Email"),
      controller: _emailController,
      validator: (String value) {
        return Validators.validateEmail(value);
      },
      onSaved: (newValue) {
        _account.email = newValue;
      },
    );
  }

  Widget _addressField() {
    return TextFormField(
      keyboardType: TextInputType.text,
      decoration: InputDecoration(labelText: "Địa chỉ"),
      controller: _addressController,
      onSaved: (newValue) {
        _account.address = newValue;
      },
    );
  }

  Widget _btnChangePassword() {
    return FlatButton(
        padding: EdgeInsets.only(top: 0.0, right: 0.0, bottom: 0.0, left: 0.0),
        onPressed: () {
          Navigator.push(
            context,
            MaterialPageRoute(builder: (context) => ChangePasswordScreen()),
          );
        },
        child: Container(
            padding:
                EdgeInsets.only(top: 15.0, right: 0.0, bottom: 10.5, left: 0.0),
            decoration: BoxDecoration(
              border:
                  Border(bottom: BorderSide(width: 0.5, color: Colors.grey)),
            ),
            child: Row(
              children: [
                Expanded(
                    child: Text(
                  "Cập nhật mật khẩu".toUpperCase(),
                  style: TextStyle(
                      fontSize: 14.0,
                      color: Colors.black,
                      fontWeight: FontWeight.bold),
                )),
                Icon(Icons.arrow_forward_ios),
              ],
            )));
  }

  @override
  Widget build(BuildContext context) => KeyboardDismisser(
      child: Scaffold(
          appBar: AppBar(
            centerTitle: true,
            title: Text(
              "Thông tin cá nhân",
              textAlign: TextAlign.center,
            ),
            actions: <Widget>[
              IconButton(
                  icon: Icon(Icons.done),
                  onPressed: () {
                    FocusScopeNode currentFocus = FocusScope.of(context);
                    if (!currentFocus.hasPrimaryFocus) {
                      currentFocus.unfocus();
                    }
                    _validateInputs();
                  })
            ],
          ),
          key: _scaffoldKey,
          body: _buildContent()));

  Widget _buildContent() {
    return StreamBuilder(
        stream: getAccountBloc.actions,
        builder: (context, AsyncSnapshot<dynamic> snapshot) {
          if (snapshot.hasData) {
            return Form(
                key: _formKey,
                autovalidate: _autoValidate,
                child: SingleChildScrollView(
                  padding: EdgeInsets.all(8.0),
                  child: Column(
                    children: <Widget>[
                      _userNameField(),
                      SizedBox(
                        height: 8.0,
                      ),
                      _fullNameField(),
                      SizedBox(
                        height: 8.0,
                      ),
                      _emailField(),
                      SizedBox(
                        height: 16.0,
                      ),
                      _btnChangePassword()
                    ],
                  ),
                ));
          } else {
            return Center(
              child: CircularProgressIndicator(),
            );
          }
        });
  }
}