package com.fitivity.virtualtraining_trainer.UI;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.Toast;

import com.fitivity.virtualtraining_trainer.Domain.ClientManager;
import com.fitivity.virtualtraining_trainer.R;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.Scopes;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Scope;
import com.google.android.gms.common.api.Status;
import com.jakewharton.rxbinding.view.RxView;

import butterknife.Bind;
import butterknife.ButterKnife;
import rx.Observer;
import rx.functions.Action1;

public class SignInActivity extends BaseActivity implements GoogleApiClient.OnConnectionFailedListener {

    @Bind(R.id.facebookButton) View facebookButton;
    @Bind(R.id.googleButton) View googleButton;
    @Bind(R.id.cancelButton) View cancelButton;
    @Bind(R.id.terms) View termsButton;
    @Bind(R.id.signInLayout) RelativeLayout signInLayout;
    @Bind(R.id.okSignInButton) Button okSignInButton;
    @Bind(R.id.cancelSignInButton) Button cancelSignInButton;
    @Bind(R.id.emailBox) EditText emailBox;
    @Bind(R.id.progressBar) ProgressBar progressBar;

    private NavigationPresenter navigationPresenter;

    private static final String TAG = "SignInActivity";
    private GoogleApiClient mGoogleApiClient;
    private static final int RC_SIGN_IN = 9001;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_in);
        ButterKnife.bind(this);
        progressBar.setVisibility(ProgressBar.INVISIBLE);

        // Configure sign-in to request the user's ID, email address, and basic info
        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();

        // Build a GoogleApiClient with access to the Google Sign-In API and the
        // options specified by gso
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .enableAutoManage(this, this)
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();

        addPresenter(navigationPresenter = new NavigationPresenter());
    }

    @Override
    public void onResume() {
        super.onResume();
        progressBar.setVisibility(ProgressBar.INVISIBLE);
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        // An unresolvable error has occurred and Google APIs (including Sign-In) will not
        // be available.
        Log.d(TAG, "onConnectionFailed:" + connectionResult);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            handleSignInResult(result);
        }
    }

    private void handleSignInResult(GoogleSignInResult result) {
        Log.d(TAG, "handleSignInResult:" + result.isSuccess());
        if (result.isSuccess()) {
            // Signed in successfully, show authenticated UI.
            GoogleSignInAccount acct = result.getSignInAccount();
//            mStatusTextView.setText(getString(R.string.signed_in_fmt, acct.getDisplayName()));
            Toast.makeText(getApplicationContext(), "Success! <3", Toast.LENGTH_SHORT).show();
            updateUI(true);
        } else {
            // Signed out, show unauthenticated UI.
            Toast.makeText(getApplicationContext(), "Failed D:", Toast.LENGTH_SHORT).show();
            updateUI(false);
        }
    }

    private void updateUI(boolean signedIn) {
        if (signedIn) {
//            findViewById(R.id.sign_in_button).setVisibility(View.GONE);
//            findViewById(R.id.sign_out_and_disconnect).setVisibility(View.VISIBLE);
        } else {
//            mStatusTextView.setText(R.string.signed_out);

//            findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
//            findViewById(R.id.sign_out_and_disconnect).setVisibility(View.GONE);
        }
    }

    private class NavigationPresenter extends Presenter {
        @Override
        public void start() {
            super.start();

            RxView.clicks(facebookButton).subscribe(new Action1<Object>() {
                @Override
                public void call(Object o) {
                    signInLayout.setVisibility(RelativeLayout.VISIBLE);
                }
            });

            RxView.clicks(okSignInButton).subscribe(new Action1<Void>() {
                @Override
                public void call(Void aVoid) {
                    progressBar.setVisibility(ProgressBar.VISIBLE);

                    ClientManager.getInstance(emailBox.getText().toString())
                    .subscribe(new Observer<ClientManager>() {
                        @Override
                        public void onCompleted() {
                            startActivity(new Intent(getApplicationContext(), MainMenuActivity.class));
                        }

                        @Override
                        public void onError(Throwable e) {
                            e.printStackTrace();
                        }

                        @Override
                        public void onNext(ClientManager clientManager) {
                            progressBar.setVisibility(ProgressBar.INVISIBLE);
                        }
                    });
                    signInLayout.setVisibility(RelativeLayout.INVISIBLE);
                }
            });

            RxView.clicks(cancelSignInButton).subscribe(new Action1<Void>() {
                @Override
                public void call(Void aVoid) {
                    signInLayout.setVisibility(RelativeLayout.INVISIBLE);
                    Auth.GoogleSignInApi.signOut(mGoogleApiClient).setResultCallback(
                            new ResultCallback<Status>() {
                                @Override
                                public void onResult(Status status) {
                                    // [START_EXCLUDE]
                                    updateUI(false);
                                    // [END_EXCLUDE]
                                }
                            });
                }
            });

            RxView.clicks(googleButton).subscribe(new Action1<Object>() {
                @Override
                public void call(Object o) {
//                    signInLayout.setVisibility(RelativeLayout.VISIBLE);
                    Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
                    startActivityForResult(signInIntent, RC_SIGN_IN);
                }
            });

            RxView.clicks(cancelButton).subscribe(new Action1<Object>() {
                @Override
                public void call(Object o) {
                    startActivity(new Intent(getApplicationContext(), WelcomeActivity.class));
                }
            });

            RxView.clicks(termsButton).subscribe(new Action1<Object>() {
                @Override
                public void call(Object o) {
                    Toast.makeText(getApplicationContext(), "Terms button clicked", Toast.LENGTH_SHORT).show();
                }
            });

         }

    }

    class RetrieveUserDataTask extends AsyncTask<String, Void, Void> {

        @Override
        protected Void doInBackground(String... params) {
            return null;
        }
    }

}