import 'dart:convert';

import 'package:http/http.dart' as http;
import 'package:liracare_flutter/modules/home/home.dart';
import 'package:flutter/material.dart';
import 'package:liracare_flutter/settings/env.dart';
import 'package:progress_hud/progress_hud.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:firebase_messaging/firebase_messaging.dart';

class Login extends StatefulWidget {
  bool logedin = false;
  @override
  _LoginState createState() => _LoginState();
}

class _LoginData {
  String username = '';
  String password = '';
}

class _LoginState extends State<Login> {
  String _token = '';
  FirebaseMessaging firebaseMessaging = new FirebaseMessaging();
  final GlobalKey<FormState> _formKey = new GlobalKey<FormState>();
  void ceklogin() async {
    var prefs = await SharedPreferences.getInstance();
    var login = prefs.getBool("login");
    if (login) {
      setState(() {
        widget.logedin = true;
      });
    }
    // return false;
  }

  ProgressHUD _progressHUD;
  bool _loading = false;
  @override
  void initState() {
    // print(ceklogin());
    if (widget.logedin == true) {
      Navigator.pushReplacement(context,
          MaterialPageRoute(builder: (BuildContext context) => Home()));
    }
    super.initState();
    _progressHUD = new ProgressHUD(
      backgroundColor: Colors.black12,
      color: Colors.white,
      containerColor: Colors.teal,
      borderRadius: 5.0,
      text: 'Loading...',
    );

    firebaseMessaging.configure(
      onLaunch: (Map<String, dynamic> mag){
        print("onlaunch called");
      },
      onResume: (Map<String, dynamic> mag){
        print("on resume called");
      },
      onMessage: (Map<String, dynamic> mag){
        print("called");
      }
    );
    firebaseMessaging.requestNotificationPermissions(
      const IosNotificationSettings(
        sound: true,
        alert: true,
        badge: true
      )
    );
    firebaseMessaging.onIosSettingsRegistered.listen((IosNotificationSettings setting){
      print('IOS setting registered');
    });

    firebaseMessaging.getToken().then((token){
      update(token);
    });
  }

  _LoginData _data = new _LoginData();

  String _validateUsername(String value) {
    if (value.length == 0) {
      return 'Username tidak boleh kosong';
    }
    return null;
  }

  String _validatePassword(String value) {
    if (value.length < 5) {
      return 'password harus lebih dari 5 karakter';
    }
    return null;
  }

  void submit() async {

    if (this._formKey.currentState.validate()) {
      _formKey.currentState.save();
      setState(() {
        _loading = true;
      });
      try {
      Map data      = {'username': _data.username, 'password': _data.password};

      var url       = Env.ENDPOINT + "login";
      var login     = await http.post(url, body: data);
      var jsonData  = json.decode(login.body);
      var kodedokter= jsonData["userlog"]["kodedokter"];
      var uslognm   = jsonData["userlog"]["uslognm"];
      var password  = jsonData["userlog"]["uspass"];

        if (jsonData["process"] == true) {
          setState(() {
            _loading = false;
          });

          // if (jsonData.contains("userlog"))  //["userlog"]["kodedokter"] != null) {
          //   kodedokter = jsonData["userlog"]["kodedokter"];
          // }

          SharedPreferences prefs = await SharedPreferences.getInstance();
          // LoginResponse loginResponse = new LoginResponse.fromJson(jsonData);

          prefs.setBool("login", true);
          prefs.setString("userid", uslognm);
          prefs.setString("password", password);

          prefs.setString("kodedokter", kodedokter);
          prefs.setString("modul", kodedokter);

         // print("token:"+_token);
        // print(_token+"\n Ini data kiriman: ");
          Map dataToken = {'username': _data.username, 'token': _token};
          print(dataToken);
          var url = Env.ENDPOINT + "saveTokenUser";
          var logintoken = await http.post(url, body: dataToken);
          var jsonDataToken = json.decode(logintoken.body);

          if(jsonDataToken['process'] == true){
            Fluttertoast.showToast(
              msg: "save token failed",
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
              timeInSecForIos: 1,
              backgroundColor: Colors.grey,
              textColor: Colors.white,
              fontSize: 12.0);
          }else{
             Fluttertoast.showToast(
              msg: "token saved",
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
              timeInSecForIos: 1,
              backgroundColor: Colors.grey,
              textColor: Colors.white,
              fontSize: 12.0);
          }

          Navigator.pushReplacement(context,
              MaterialPageRoute(builder: (BuildContext context) => Home()));
          Fluttertoast.showToast(
              msg: "Login Success",
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
              timeInSecForIos: 1,
              backgroundColor: Colors.grey,
              textColor: Colors.white,
              fontSize: 12.0);
        } else {
          setState(() {
            _loading = false;
          });

          Fluttertoast.showToast(
              msg: jsonData["message"] + " " + jsonData["detail"],
              toastLength: Toast.LENGTH_SHORT,
              gravity: ToastGravity.BOTTOM,
              timeInSecForIos: 1,
              backgroundColor: Colors.grey,
              textColor: Colors.white,
              fontSize: 12.0);
        }
      } catch (e) {
        setState(() {
          _loading = false;
        });
        print(e);
        print("gagal login");
        Fluttertoast.showToast(
            msg: "Tejadi kesalahan sistem, tidak bisak koneksi dengan server",
            toastLength: Toast.LENGTH_SHORT,
            gravity: ToastGravity.BOTTOM,
            timeInSecForIos: 1,
            backgroundColor: Colors.grey,
            textColor: Colors.white,
            fontSize: 12.0);
      }
    }
  }

  update(String stoken){
   print("ini token: "+stoken);
    _token = stoken;
    setState(() {

    });
  }

  @override
  Widget build(BuildContext context) {
    return new Stack(
      children: <Widget>[
        // The containers in the background
        new Column(
          children: <Widget>[
            new Container(
              child: Center(
                child: CircleAvatar(
                    radius: 40.0,
                    backgroundColor: Colors.white,
                    child: Image.asset(
                      'assets/images/logo_lira.png',
                      height: 60.0,
                    )),
              ),
              height: MediaQuery.of(context).size.height * .50,
              color: Colors.teal,
            ),
            new Container(
              height: MediaQuery.of(context).size.height * .50,
              color: Colors.white,
            )
          ],
        ),
        new Container(
          alignment: Alignment.topCenter,
          padding: new EdgeInsets.only(
              top: MediaQuery.of(context).size.height * .40,
              right: 30.0,
              left: 30.0),
          child: new Container(
            height: 350.0,
            width: MediaQuery.of(context).size.width,
            child: new Card(
              shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(10.0)),
              child: Padding(
                padding: EdgeInsets.all(20.0),
                child: ListView(
                  children: <Widget>[
                    Form(
                      key: this._formKey,
                      child: Column(
                        children: <Widget>[
                          TextFormField(
                            decoration: InputDecoration(labelText: "Username"),
                            validator: this._validateUsername,
                            onSaved: (String value) {
                              this._data.username = value;
                            },
                          ),
                          TextFormField(
                            obscureText: true,
                            decoration: InputDecoration(labelText: "Password"),
                            validator: this._validatePassword,
                            onSaved: (String value) {
                              this._data.password = value;
                            },
                          ),
                        ],
                      ),
                    ),
                    SizedBox(
                      height: 50.0,
                    ),
                    RaisedButton(
                      shape: new RoundedRectangleBorder(
                          borderRadius: new BorderRadius.circular(30.0)),
                      color: Colors.teal[300],
                      onPressed: () {
                        this.submit();
                      },
                      child: SizedBox(
                          width: double.infinity,
                          height: 50.0,
                          child: Center(
                              child: Text("Login",
                                  style: TextStyle(
                                      color: Colors.white,
                                      fontWeight: FontWeight.bold,
                                      fontSize: 15.0)))),
                    ),
                    Center(
                      child: Text("or"),
                    ),
                  ],
                ),
              ),
              color: Colors.white,
              elevation: 4.0,
            ),
          ),
        ),
        (_loading == true) ? _progressHUD : Text(""),
      ],
    );
  }
}