Aiman

import android.Manifest;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.firebase.database.core.Context;
import com.vego.vego.R;

import java.util.Objects;

//
//  Main_Fragment.java
//  Stackoverflow
//
//  Created by Aiman Qaid on 16/10/2019.
//  Copyright All rights reserved.
//
public class Main_Fragment extends Fragment {



    private static Button btn_parques, btn_postos, btn_dados, btn_mapa, btn_noticias, btn_meteor, btn_sug;
//    private FusedLocationProviderClient fusedLocationClient;
    private Boolean mLocationPermissionGranted = false;
    private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
    private static final String COURSE_LOCATION = Manifest.permission.ACCESS_COARSE_LOCATION;
    private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;
    //private GoogleSignInClient mGoogleSignInClient;
    private Context mContext;
    private GoogleApiClient mGoogleApiClient;
    //  private GoogleApiClient mGoogleApiClient;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        /* setContentView(R.layout.main);

         if (savedInstanceState == null) {
             Fragment fg = new Right();
             getFragmentManager().beginTransaction().add(R.id.right_frag, fg)
                     .commit();
         }*/
        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();
        mGoogleApiClient = new GoogleApiClient.Builder(Objects.requireNonNull(getContext()))
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();
        mGoogleApiClient.connect();

    }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_main_, container, false);

//        btn_parques = (Button) view.findViewById(R.id.btn_parques);
//        btn_postos = (Button) view.findViewById(R.id.btn_postos);
//        btn_dados = (Button) view.findViewById(R.id.btn_dados);
//        btn_mapa = (Button) view.findViewById(R.id.btn_mapa);
//        btn_noticias = (Button) view.findViewById(R.id.btn_noticias);
//        btn_meteor = (Button) view.findViewById(R.id.btn_meteor);
//        btn_sug = (Button) view.findViewById(R.id.btn_sug);

//        mContext = getActivity();

//        getLocationPermission();

        enableMyLocation();



        /**
         * Ao carregar no botão dos Parques, faz a transição para o Parque_fragment
         */
        btn_parques.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new Parque_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão dos Postos, faz a transição para o PostosEletricos_fragment
         */
        btn_postos.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new PostosEletricos_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão do Conjunto de Dados, faz a transição para os Dados_Fragment
         */
        btn_dados.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new Dados_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão do Mapa, faz a transição para o Map_fragment
         */
        btn_mapa.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new Map_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão das noticias, faz a transição para o News_fragment
         */
        btn_noticias.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new News_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão da Meteorologia, faz a transição para Weather_fragment
         */
        btn_meteor.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new Weather_Fragment());
//                tt.commit();
//                tt.addToBackStack(null);
            }
        });
        /**
         * Ao carregar no botão da Sugestão, faz a transição para Sugestoes_Fragment
         */
        btn_sug.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//                FragmentTransaction tt = getFragmentManager().beginTransaction();
//                tt.replace(R.id.fragment_container, new Sugestoes_Fragment());
//                tt.commit();
//                tt.addToBackStack(null); //volta para a "pagina anterior" do fragmento
            }
        });


        return view;
    }
    /**
     * Método que calcula a distancia entre a localizacao atual do utilizador
     * e a localizacao de cada parque
     * Ordena os parques de estacionamento ascendentemente por parque mais proximo
     */
    private void enableMyLocation(){

//        fusedLocationClient = LocationServices.getFusedLocationProviderClient(mContext);
//
//        try{
//            if(mLocationPermissionGranted) {
//
//                Task location = fusedLocationClient.getLastLocation();
//                location.addOnCompleteListener(new OnCompleteListener() {
//                    @Override
//                    public void onComplete(@NonNull Task task) {
//                        if (task.isSuccessful()) {
//                            Location currentLocation = (Location) task.getResult();
//                        }
//                    }
//                });
//            }
//        } catch (Exception e) {
//            e.printStackTrace();
//        }
//    }
//
//    /**
//     * Método que verifica as permissoes necessarias para aceder à localizacao atual
//     */
//    private void getLocationPermission(){
//        String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
//
//        if(ContextCompat.checkSelfPermission(mContext.getApplicationContext(), FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
//            if(ContextCompat.checkSelfPermission(mContext.getApplicationContext(), COURSE_LOCATION) == PackageManager.PERMISSION_GRANTED){
//                mLocationPermissionGranted = true;
//            } else {
//                ActivityCompat.requestPermissions((Activity) getActivity(), permissions, LOCATION_PERMISSION_REQUEST_CODE);
//            }
//        } else {
//            ActivityCompat.requestPermissions((Activity) getActivity(), permissions, LOCATION_PERMISSION_REQUEST_CODE);
//        }
    }


    @Override
    public void onResume() {
        super.onResume();

        getView().setFocusableInTouchMode(true);
        getView().requestFocus();
        getView().setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
                    final AlertDialog.Builder builder = new AlertDialog.Builder(getContext())//.this
                            .setMessage("Tem a certeza que pretende sair?")
                            .setCancelable(true)
                            .setNegativeButton("Não", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            });
                    builder.setPositiveButton("Sair", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {

                            Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
                                    new ResultCallback<Status>() {
                                        @Override
                                        public void onResult(Status status) {
                                            // ... your code goes here


                                        }
                                    });
                            /*   Intent intent=new Intent(getContext(), Login.class); //ProfileActivity.this
                               intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                               startActivity(intent);
                               getActivity().finish();*/

                        }
                    });

                    AlertDialog alertDialog = builder.create();
                    alertDialog.show();

                    return true;
                }

                return false;
            }
        });
    }

}