package com.example.mei.zhoukao1;

import android.annotation.SuppressLint;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;

import com.google.gson.Gson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;

public class Fragmenttwo extends Fragment {

private ListView listView;
private MyAdapter myAdapter;
private UserDao userDao;
private List<MyUser> list= new ArrayList<>();
String auiUrl = "https://api.expoon.com/AppNews/getNewsList/type/1/p/1";
private  int ling=0;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragenttwo, container, false);
    listView = view.findViewById(R.id.lv);
    myAdapter = new MyAdapter(getActivity(), list);
    listView.setAdapter(myAdapter);
    userDao = new UserDao(getActivity());
    list = userDao.selete();

    if (!wl()){
        Toast.makeText(getActivity(),"无网络 ",ling).show();
    }else {
        new hhh().execute(auiUrl);
    }

    listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
            userDao.delete(list.get(position).getNews_title());
            list.remove(position);
            myAdapter.notifyDataSetChanged();
            return false;
        }
    });
    return view;
}

class hhh extends AsyncTask<String, Void, ArrayList<MyUser>> {

    @Override
    protected ArrayList<MyUser> doInBackground(String... strings) {
        try {
            URL url = new URL(strings[0]);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            int responseCode = urlConnection.getResponseCode();
            if (responseCode == 200) {
                InputStream inputStream = urlConnection.getInputStream();
                Gson gson = new Gson();
                User user = gson.fromJson(new BufferedReader(new InputStreamReader(inputStream)), User.class);
                List<User.da> data = user.getData();
                if (list.size() == 0) {
                   for (int i=0;i<data.size();i++){
                       userDao.add(data.get(i).getNews_title(), data.get(i).getNews_summary());
                   }
                }
                list = userDao.selete();
                return (ArrayList<MyUser>) list;

            }

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(ArrayList<MyUser> myUsers) {

        super.onPostExecute(myUsers);
        myAdapter.setList(myUsers);
    }
}

public boolean wl() {

    ConnectivityManager cm = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = cm.getActiveNetworkInfo();
    return activeNetworkInfo!=null && activeNetworkInfo.isAvailable();


}

}