public class MessageChatListFragment extends Fragment implements ChatRoomManager.ChatRoomManagerListener, ClickInterface {
    private LinearLayout boxEmptyMessage;
    private ChatRoomManager chatRoomManager;
    private MessageChatListRVAdapter adapter;
    private SwipeRefreshLayout swipeRefreshLayout;
    private RecyclerView recyclerView;
    private RelativeLayout loading;
    private TextView tvMesaggeToShow;

    public MessageChatListFragment() {
        // Required empty public constructor
    }

    public static MessageChatListFragment newInstance() {
        MessageChatListFragment fragment = new MessageChatListFragment();
        Bundle args = new Bundle();
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        chatRoomManager = ChatRoomManager.getInstance();
        adapter = new MessageChatListRVAdapter(getActivity(), this);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View rootView = inflater.inflate(R.layout.fragment_message_list, container, false);
        initInstances(rootView);
        return rootView;
    }

    private void initInstances(View rootView) {
        boxEmptyMessage = (LinearLayout) rootView.findViewById(R.id.boxEmpty);
        loading = (RelativeLayout) rootView.findViewById(R.id.loading);
        swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipeRefreshLayout);
        recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
        swipeRefreshLayout.setOnRefreshListener(onRefreshListener);
        tvMesaggeToShow=(TextView) rootView.findViewById(R.id.tv_message_to_show);

        adapter.setDataList(chatRoomManager.getAllChatRoom());

        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerView.setAdapter(adapter);

        if (adapter.getItemCount() > 0){
            boxEmptyMessage.setVisibility(View.GONE);
            recyclerView.setVisibility(View.VISIBLE);
        } else {
            boxEmptyMessage.setVisibility(View.VISIBLE);
            recyclerView.setVisibility(View.GONE);
        }
    }

    private void checkInternet() {
        new AsyncTask<Void, Void, String>() {

            @Override
            protected String doInBackground(Void... params) {
                if (isOnline()) {
                    return "true";
                } else {
                    return "false";
                }
            }

            @Override
            protected void onPostExecute(String s) {
                setProgress(s);
            }


        }.execute();
    }

    private void setProgress(String s) {

        if (s.equals("true")) {

            chatRoomManager.loadChatRoomList(this);
            boxEmptyMessage.setVisibility(View.GONE);
            recyclerView.setVisibility(View.VISIBLE);

        } else if (s.equals("false")) {
            loading.setVisibility(View.GONE);
            tvMesaggeToShow.setText("Click To Reload");
            boxEmptyMessage.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    loading.setVisibility(View.VISIBLE);
                    checkInternet();
                  //  chatRoomManager.loadChatRoomList(MessageChatListFragment.this);
                }
            });
         /*  boxEmptyMessage.setVisibility(View.VISIBLE);
            recyclerView.setVisibility(View.GONE);*/
        }
    }


    public boolean isOnline() {

        Runtime runtime = Runtime.getRuntime();
        try {

            Process ipProcess = runtime.exec("/system/bin/ping -c 1 8.8.8.8");
            int exitValue = ipProcess.waitFor();
            return (exitValue == 0);

        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        return false;
    }

    @Override
    public void onStart() {
        super.onStart();
        loading.setVisibility(View.VISIBLE);
        checkInternet();

    }

    private SwipeRefreshLayout.OnRefreshListener onRefreshListener = new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            chatRoomManager.loadChatRoomList(MessageChatListFragment.this);
        }
    };

    @Override
    public void onUpdate() {
        loading.setVisibility(View.GONE);
        adapter.setDataList(chatRoomManager.getAllChatRoom());
        adapter.notifyDataSetChanged();
        swipeRefreshLayout.setRefreshing(false);

        if (adapter.getItemCount() > 0){
            boxEmptyMessage.setVisibility(View.GONE);
            recyclerView.setVisibility(View.VISIBLE);
        } else {
            boxEmptyMessage.setVisibility(View.VISIBLE);
            recyclerView.setVisibility(View.GONE);
        }
    }

    @Override
    public void notHaveChat() {
        loading.setVisibility(View.GONE);
        swipeRefreshLayout.setRefreshing(false);
    }

    @Override
    public void notHaveMessage() {
        boxEmptyMessage.setVisibility(View.VISIBLE);
        recyclerView.setVisibility(View.GONE);
    }

    @Override
    public void onClick(Object object) {
        FirebaseChatRoomModel chatRoom = (FirebaseChatRoomModel) object;
        Intent intent = new Intent(getActivity(), MessageToTeacherActivity.class);
        intent.putExtra("CHAT_ID", chatRoom.getChatId());
        intent.putExtra("TEACHER_ID", chatRoom.getTeacherId());
        ((MainActivity) getActivity()).changeActivity(intent);
    }
}