package insat.unotifier;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

import com.gc.materialdesign.views.ButtonRectangle;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;

import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;

import insat.unotifier.util.ProcessRegister;


public class RegisterActivity extends Activity {
    public static final String EXTRA_MESSAGE = "message";
    public static final String PROPERTY_REG_ID = "registration_id";
    private static final String PROPERTY_APP_VERSION = "appVersion";
    private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;

    /**
     * Substitute you own sender ID here. This is the project number you got
     * from the API Console, as described in "Getting Started."
     */
    String SENDER_ID = "746306267432";

    /**
     * Tag used on log messages.
     */
    static final String TAG = "Unotifier";
    ButtonRectangle submit_btn;
    EditText id_edittext;
    TextView mDisplay;
    GoogleCloudMessaging gcm;
    AtomicInteger msgId = new AtomicInteger();
    Context context;

    String regid;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_form);
            mDisplay = (TextView) findViewById(R.id.display);
             id_edittext = (EditText) findViewById(R.id.id_edittext);
             submit_btn = (ButtonRectangle)findViewById(R.id.btn_submit);
             context = RegisterActivity.this;
        submit_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Check device for Play Services APK. If check succeeds, proceed with GCM registration.
                if (checkPlayServices()) {
                    gcm = GoogleCloudMessaging.getInstance(context);
                    regid = getRegistrationId(context);

                    if (regid.equals("")) {
                        registerInBackground();
                    }else{
                        Intent RegisterToMain = new Intent(RegisterActivity.this,MainActivity.class);
                        RegisterToMain.putExtra("msg","this device is already registered");
                        RegisterToMain.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        context.startActivity(RegisterToMain);
                    }
                } else {
                    Log.i(TAG, "No valid Google Play Services APK found.");
                }
            }
        });

    }
    @Override
    protected void onResume() {
        super.onResume();
        // Check device for Play Services APK.
        checkPlayServices();
    }

    /**
     * Check the device to make sure it has the Google Play Services APK. If
     * it doesn't, display a dialog that allows users to download the APK from
     * the Google Play Store or enable it in the device's system settings.
     */
    private boolean checkPlayServices() {
        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        if (resultCode != ConnectionResult.SUCCESS) {
            if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
                GooglePlayServicesUtil.getErrorDialog(resultCode, this,
                        PLAY_SERVICES_RESOLUTION_REQUEST).show();
            } else {
                Log.i(TAG, "This device is not supported.");
                finish();
            }
            return false;
        }
        return true;
    }

    /**
     * Stores the registration ID and the app versionCode in the application's
     * {@code SharedPreferences}.
     *
     * @param context application's context.
     * @param regId registration ID
     */
    private void storeRegistrationId(Context context, String regId) {
        final SharedPreferences prefs = getGcmPreferences(context);
        int appVersion = getAppVersion(context);
        Log.i(TAG, "Saving regId on app version " + appVersion);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString(PROPERTY_REG_ID, regId);
        editor.putInt(PROPERTY_APP_VERSION, appVersion);
        editor.commit();
    }

    /**
     * Gets the current registration ID for application on GCM service, if there is one.
     * <p>
     * If result is empty, the app needs to register.
     *
     * @return registration ID, or empty string if there is no existing
     *         registration ID.
     */
    private String getRegistrationId(Context context) {
        final SharedPreferences prefs = getGcmPreferences(context);
        String registrationId = prefs.getString(PROPERTY_REG_ID, "");
        if (registrationId.equals("")) {
            Log.i(TAG, "Registration not found.");
            return "";
        }
        // Check if app was updated; if so, it must clear the registration ID
        // since the existing regID is not guaranteed to work with the new
        // app version.
        int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
        int currentVersion = getAppVersion(context);
        if (registeredVersion != currentVersion) {
            Log.i(TAG, "App version changed.");
            return "";
        }
        return registrationId;
    }

    /**
     * Registers the application with GCM servers asynchronously.
     * <p>
     * Stores the registration ID and the app versionCode in the application's
     * shared preferences.
     */
    private void registerInBackground() {
        new AsyncTask<Void, Void, String>() {
            ProgressDialog pDialog;
            @Override
            protected void onPreExecute() {
                super.onPreExecute();

        pDialog = new ProgressDialog(context);
        pDialog.setTitle("Contacting Servers");
        pDialog.setMessage("Registering ...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();
            }
            @Override
            protected String doInBackground(Void... params) {
                String msg = "";
                try {
                    if (gcm == null) {
                        gcm = GoogleCloudMessaging.getInstance(context);
                    }
                    regid = gcm.register(SENDER_ID);
                   msg = "Device registered, registration ID=" + regid;
                    Log.i(TAG,msg);
                    // You should send the registration ID to your server over HTTP, so it
                    // can use GCM/HTTP or CCS to send messages to your app.
                    sendRegistrationIdToBackend();

                    // For this demo: we don't need to send it because the device will send
                    // upstream messages to a server that echo back the message using the
                    // 'from' address in the message.

                    // Persist the regID - no need to register again.
                    storeRegistrationId(context, regid);
                } catch (IOException ex) {
                    msg = "Error :" + ex.getMessage();
                    // If there is an error, don't just keep trying to register.
                    // Require the user to click a button again, or perform
                    // exponential back-off.
                }
                return msg;
            }

            @Override
            protected void onPostExecute(String msg) {
                pDialog.dismiss();
                Intent RegisterToMain = new Intent(RegisterActivity.this,MainActivity.class);
                RegisterToMain.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(RegisterToMain);
                if (Unotifier.notFirstUse) {
                       Unotifier.editor.putBoolean("notfirstuse",true);
                }
            }
        }.execute(null, null, null);
    }

    /*// Send an upstream message.
    public void onClick(final View view) {

        if (view == findViewById(R.id.send)) {
            new AsyncTask<Void, Void, String>() {
                @Override
                protected String doInBackground(Void... params) {
                    String msg = "";
                       Bundle data = new Bundle();
                       data.putString("my_message", "Hello World");
                       data.putString("my_action", "insat.unotifier.ECHO_NOW");
                       String id = Integer.toString(msgId.incrementAndGet());
                    try {
                        gcm.send(SENDER_ID + "@gcm.googleapis.com", id, data);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    msg = "Sent message";
                    return msg;
                }

                @Override
                protected void onPostExecute(String msg) {
                    mDisplay.append(msg + "\n");
                }
            }.execute(null, null, null);
        } else if (view == findViewById(R.id.clear)) {
            mDisplay.setText("");
        }
    }
*/
    @Override
    protected void onDestroy() {
        super.onDestroy();
    }

    /**
     * @return Application's version code from the {@code PackageManager}.
     */
    private static int getAppVersion(Context context) {
        try {
            PackageInfo packageInfo = context.getPackageManager()
                    .getPackageInfo(context.getPackageName(), 0);
            return packageInfo.versionCode;
        } catch (PackageManager.NameNotFoundException e) {
            // should never happen
            throw new RuntimeException("Could not get package name: " + e);
        }
    }

    /**
     * @return Application's {@code SharedPreferences}.
     */
    private SharedPreferences getGcmPreferences(Context context) {
        // This sample app persists the registration ID in shared preferences, but
        // how you store the regID in your app is up to you.
        return getSharedPreferences(RegisterActivity.class.getSimpleName(),
                Context.MODE_PRIVATE);
    }
    /**
     * Sends the registration ID to your server over HTTP, so it can use GCM/HTTP or CCS to send
     * messages to your app. Not needed for this demo since the device sends upstream messages
     * to a server that echoes back the message using the 'from' address in the message.
     */
    private void sendRegistrationIdToBackend() {
        String identifiant=id_edittext.getText().toString();

        new ProcessRegister(context).execute(identifiant,regid);
    }

    @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_register, 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_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}
