protected  static final String TAG = RecipientsActivity.class.getSimpleName();
protected static MenuItem mSendMenuItem;
protected static Uri mMediaUri;
protected static String mFileType;

RecipientFragment list;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_recipients);
    mMediaUri = getIntent().getData();
    mFileType = getIntent().getExtras().getString(ParseConstants.KEY_FILE_TYPE);

}
@Override
protected void onResume() {
    super.onResume();
    FragmentManager fm = getSupportFragmentManager();
    list = new RecipientFragment();
    fm.beginTransaction().add(android.R.id.content, list).commit();
}



@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_recipients, menu);
    mSendMenuItem = menu.getItem(0);
    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_send) {
        ParseObject message = list.createMessage();
        if(message==null){
            //error
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setMessage(getString(R.string.error_selecting_file_error))
                    .setTitle(getString(R.string.error_selecting_file_title))
                    .setPositiveButton(android.R.string.ok, null);
            AlertDialog dialog = builder.create();
            dialog.show();
        }
        else {
            Log.i(TAG, "Sending message and Finist");
            list.send(message);
            finish();
        }
        return true;
    }

    return super.onOptionsItemSelected(item);
}

protected List<ParseUser> mFriends;
protected ParseRelation<ParseUser> mFriendsRelation;
protected ParseUser mCurrentUser;

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return super.onCreateView(inflater, container, savedInstanceState);
}

@Override
public void onResume() {
    super.onResume();
    mCurrentUser = ParseUser.getCurrentUser();
    mFriendsRelation = mCurrentUser.getRelation(ParseConstants.KEY_FRIEND_RELATION);

    ParseQuery<ParseUser> query = mFriendsRelation.getQuery();
    query.addAscendingOrder(ParseConstants.KEY_USERNAME);
    query.findInBackground(new FindCallback<ParseUser>() {
        @Override
        public void done(List<ParseUser> friends, ParseException e) {

            if (e == null) {
                mFriends = friends;

                String[] userNames = new String[mFriends.size()];
                int i = 0;
                for (ParseUser user : mFriends) {
                    userNames[i] = user.getUsername();
                    i++;
                }
                ArrayAdapter<String> adapter = new ArrayAdapter<String>(
                        getListView().getContext(),
                        android.R.layout.simple_list_item_checked,
                        userNames);
                setListAdapter(adapter);
                getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
            } else {
                Log.e(TAG, e.getMessage());
                AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
                builder.setMessage(e.getMessage())
                        .setTitle(getString(R.string.query_error_title))
                        .setPositiveButton(android.R.string.ok, null);

                AlertDialog dialog = builder.create();
                dialog.show();
            }

        }
    });
}




protected void send(ParseObject message) {

    message.saveInBackground(new SaveCallback() {
        @Override
        public void done(ParseException e) {
            if(e==null){
                //sucess

                        Log.e(TAG, "checking why toast is not working");
                        Toast.makeText(getListView().getContext(), getString(R.string.success_message), Toast.LENGTH_LONG).show(); //Toast is causing error thread exiting with uncaught exception (group=0x415cddb8)

            }
            else{
                AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
                builder.setMessage(getString(R.string.error_sending_message))
                        .setTitle(getString(R.string.error_selecting_file_title))
                        .setPositiveButton(android.R.string.ok, null);
                AlertDialog dialog = builder.create();
                dialog.show();
            }
        }
    });
}

protected ParseObject createMessage() {
    ParseObject message = new ParseObject(ParseConstants.CLASS_MESSAGES);
    message.put((ParseConstants.KEY_SENDER_IDs), ParseUser.getCurrentUser().getObjectId());
    message.put(ParseConstants.KEY_SENDER_NAME, ParseUser.getCurrentUser().getUsername());
    message.put((ParseConstants.KEY_RECIPIENT_IDs), getRecipientIds());
    message.put(ParseConstants.KEY_FILE_TYPE,RecipientsActivity.mFileType);

    Log.i(TAG, "Creating Message");

    byte[] fileBytes = FileHelper.getByteArrayFromFile(getListView().getContext(), RecipientsActivity.mMediaUri);
    if(fileBytes==null){
        return null;
    }
    else{
        if(RecipientsActivity.mFileType.equals(ParseConstants.TYPE_IMAGE)){
            fileBytes = FileHelper.reduceImageForUpload(fileBytes);
        }
        String fileName = FileHelper.getFileName(getListView().getContext(), RecipientsActivity.mMediaUri,
                RecipientsActivity.mFileType);
        ParseFile file = new ParseFile(fileName, fileBytes);
        message.put(ParseConstants.KEY_FILE,file);
        return message;
    }

}

protected ArrayList<String> getRecipientIds() {
    ArrayList<String> recipientIds = new ArrayList<String>();
    for (int i = 0; i < getListView().getCount(); i++) {
        if (getListView().isItemChecked(i)) {
            recipientIds.add(mFriends.get(i).getObjectId());
        }
    }
    Log.i(TAG,"getting ReceipientID");

    return recipientIds;
}

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);

    if (l.getCheckedItemCount() > 0) {
        RecipientsActivity.mSendMenuItem.setVisible(true);
    } else {
        RecipientsActivity.mSendMenuItem.setVisible(false);
    }
}