package com.example.rumi.bloodbank;

import android.app.ProgressDialog;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.design.widget.TextInputLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

import java.util.HashMap;
import java.util.Map;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;

public class RegisterActivity extends AppCompatActivity {

    @BindView(R.id.til_name)
    TextInputLayout tilName;
    @BindView(R.id.til_email)
    TextInputLayout tilEmail;
    @BindView(R.id.til_password)
    TextInputLayout tilPassword;

    private FirebaseAuth mAuth;
    private FirebaseAuth.AuthStateListener firebaseAuthStateListener;
    ProgressDialog progressDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        ButterKnife.bind(this);

        mAuth = FirebaseAuth.getInstance();

        firebaseAuthStateListener = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                final FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
                if (user != null) {
                    Intent intent = new Intent(RegisterActivity.this, MainActivity.class);
                    startActivity(intent);
                    finish();
                }
            }
        };
        progressDialog = new ProgressDialog(RegisterActivity.this);
        progressDialog.setCancelable(true);
    }

    @OnClick(R.id.go_to_login)
    void gotoLogin() {
        startActivity(new Intent(this, LoginActivity.class));
    }

    @OnClick(R.id.btnRegister)
    void register() {
        progressDialog.setMessage("Loading...");
        progressDialog.show();
        final String email = tilEmail.getEditText().getText().toString();
        final String password = tilPassword.getEditText().getText().toString();
        final String name = tilName.getEditText().getText().toString();

        mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if (task.isSuccessful()) {
                    progressDialog.dismiss();
                    String userId = mAuth.getCurrentUser().getUid();
                    DatabaseReference currentUserDb = FirebaseDatabase.getInstance().getReference().child("Users").child(userId);
                    Map userInfo = new HashMap<>();
                    userInfo.put("name", name);
                    currentUserDb.updateChildren(userInfo);
                    Toast.makeText(RegisterActivity.this, "Successfully registered", Toast.LENGTH_SHORT).show();
                    startActivity(new Intent(RegisterActivity.this, LoginActivity.class));
                }
            }
        }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.e("RegisterActivity", e.getMessage());
            }
        });
    }
}