package com.fixazimbabwe.android.app;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
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.auth.FirebaseUser;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

public class MainActivity extends AppCompatActivity {
    private android.support.v7.widget.Toolbar toolbar;
    private EditText mEmail, mPassword;
    private Button mLogin, mRegistration, mWork;
    private FirebaseAuth mAuth;
    private FirebaseAuth.AuthStateListener firebaseAuthListener;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(com.fixazimbabwe.android.app.R.layout.activity_main);
        toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        if (getSupportActionBar() != null) {
            getSupportActionBar().setTitle("Fixa Login");
        }
        toolbar.setSubtitle("we fix everything");
        toolbar.inflateMenu(R.menu.menu_main);
        mAuth = FirebaseAuth.getInstance();
        firebaseAuthListener = (FirebaseAuth firebaseAuth) -> {
            FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
            if(user!=null){
                Intent intent = new Intent(MainActivity.this, PayOrPostActivity.class);
                startActivity(intent);
                finish();
                return;
            }
        };

        mEmail = findViewById(com.fixazimbabwe.android.app.R.id.emailEditText);
        mPassword = findViewById(com.fixazimbabwe.android.app.R.id.passwordEditText);
        mLogin = findViewById(com.fixazimbabwe.android.app.R.id.loginButton);
        mRegistration = findViewById(com.fixazimbabwe.android.app.R.id.registerButton);
        mWork = findViewById(com.fixazimbabwe.android.app.R.id.applyButton);
        //Go to the Fixa Pros Application welcome activity
        mWork.setOnClickListener(v -> {
            Intent intent = new Intent(MainActivity.this, FixaProApplicationActivity.class);
            startActivity(intent);
        });


        //Register a customer
        mRegistration.setOnClickListener((View v) -> {
            final String email = mEmail.getText().toString();
            final String password = mPassword.getText().toString();

            mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(MainActivity.this, new OnCompleteListener<AuthResult>() {

                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if(!task.isSuccessful()){
                        Toast.makeText(MainActivity.this, "Login Error", Toast.LENGTH_SHORT).show();
                    }else {
                        String user_id = mAuth.getCurrentUser().getUid();
                        DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child("Customers").child(user_id).child("name");
                        current_user_db.setValue(email);
                    }
                }
            });
        });

        //Login a customer
        mLogin.setOnClickListener(v -> {
            final String email = mEmail.getText().toString();
            final String password = mPassword.getText().toString();
            mAuth.signInWithEmailAndPassword(email, password).addOnCompleteListener(MainActivity.this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if(!task.isSuccessful()){
                        Toast.makeText(MainActivity.this, "Login Error", Toast.LENGTH_SHORT).show();

                    }
                }
            });
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement

        if (id == R.id.action_logout) {

            FirebaseAuth.getInstance().signOut();
            return true;
        }

        if (id == R.id.action_apply) {
            Intent intent = new Intent(this,FixaProApplicationFormActivity.class);
            this.startActivity(intent);
            return true;
        }

        if (id == R.id.action_home) {
            Intent intent = new Intent(this,WelcomeActivity.class);
            this.startActivity(intent);
            return true;
        }

        return super.onOptionsItemSelected(item);
    }


    @Override
    protected void onStart() {
        super.onStart();
        mAuth.addAuthStateListener(firebaseAuthListener);
    }
    @Override
    protected void onStop() {
        super.onStop();
        mAuth.removeAuthStateListener(firebaseAuthListener);
    }
}