UbahKataSandi

package com.utomoardy.bejajan2.Penjual;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import com.utomoardy.bejajan2.Java.User;
import com.utomoardy.bejajan2.R;

public class UbahKataSandi extends AppCompatActivity {
    FirebaseAuth mAuth;
    FirebaseDatabase mDatabase;
    DatabaseReference mRootRef, mUserRef;
    EditText sandiLamaEdit, sandiBaruEdit, ulangiSandiEdit;
    Button simpanSandiEdit;
    String TAG = "UbahKataSandi";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ubah_kata_sandi);
        mAuth = FirebaseAuth.getInstance();
        mDatabase = FirebaseDatabase.getInstance();
        mRootRef = mDatabase.getReference();
        mUserRef = mRootRef.child("users");

        sandiLamaEdit = (EditText) findViewById(R.id.sandiLama);
        sandiBaruEdit = (EditText) findViewById(R.id.sandiBaru);
        ulangiSandiEdit = (EditText) findViewById(R.id.ulangSandi);
        simpanSandiEdit = (Button) findViewById(R.id.simpanSandi);

        simpanSandiEdit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
               ubahPassword();

            }
        });

    }

    private void ubahPassword() {
        final String passwordLama = sandiLamaEdit.getText().toString();
        final String passwordBaru = sandiBaruEdit.getText().toString();
        final String ulangpass = ulangiSandiEdit.getText().toString();

        mUserRef.child(mAuth.getCurrentUser().getUid()).addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                final User user = dataSnapshot.getValue(User.class);
                String email = user.email;
                String password = user.password;
                if (TextUtils.isEmpty(passwordBaru)){
                    sandiBaruEdit.setError("Kata sandi baru harus di isi");
                }else if (!TextUtils.equals(passwordBaru, ulangpass)){
                    ulangiSandiEdit.setError("Ulangi kata sandi dengan benar");
                }else {
                    if (password.equals(passwordLama) && passwordBaru.equals(ulangpass)){
                        mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                            @Override
                            public void onComplete(@NonNull Task<AuthResult> task) {
                                if (task.isSuccessful()){
                                    mAuth.getCurrentUser().updatePassword(passwordBaru).addOnCompleteListener(new OnCompleteListener<Void>() {
                                        @Override
                                        public void onComplete(@NonNull Task<Void> task) {
                                            if (task.isSuccessful()){
                                                mUserRef.child(mAuth.getCurrentUser().getUid()).child("password").setValue(passwordBaru);
                                                Toast.makeText(getApplicationContext(), "Kata Sandi berhasil di ubah", Toast.LENGTH_SHORT).show();
                                                finish();
                                            }
                                        }
                                    });
                                }
                            }
                        });
                    }else {
                        sandiLamaEdit.setError("Kata Sandi lama tidak sesuai !");
                    }
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
    }
}