pl.poznan.put.cs.ify.app.fragments.MyGroupsFragment.java Source code

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Here is the source code for pl.poznan.put.cs.ify.app.fragments.MyGroupsFragment.java

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/*******************************************************************************
 * Copyright 2014 if{y} team
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package pl.poznan.put.cs.ify.app.fragments;

import java.util.ArrayList;

import org.json.JSONArray;
import org.json.JSONException;

import pl.poznan.put.cs.ify.api.PreferencesProvider;
import pl.poznan.put.cs.ify.api.network.QueueSingleton;
import pl.poznan.put.cs.ify.app.ui.server.GroupModel;
import pl.poznan.put.cs.ify.app.ui.server.GroupsAdapter;
import pl.poznan.put.cs.ify.app.ui.server.JsonParser;
import pl.poznan.put.cs.ify.app.ui.server.ServerURLBuilder;
import pl.poznan.put.cs.ify.app.ui.server.UserModel;
import pl.poznan.put.cs.ify.appify.R;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnGroupClickListener;

import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;

public class MyGroupsFragment extends Fragment {

    private GroupsAdapter mGroupsAdapter;
    private ArrayList<GroupModel> mGroups;
    private String mUsername;
    private View mNotLoggedInLayout;
    private String mPassword;
    private ErrorListener mErrorListener = new ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError arg0) {
            mProgress--;
            if (mProgress == 0) {
                mProgressLayout.setVisibility(View.GONE);
            }
            mErrorLayout.setVisibility(View.VISIBLE);
        }
    };
    private Listener<JSONArray> mRequestGroupsListener = new Listener<JSONArray>() {

        @Override
        public void onResponse(JSONArray source) {
            JsonParser parser = new JsonParser();
            mProgress--;
            if (mProgress == 0) {
                mProgressLayout.setVisibility(View.GONE);
            }
            try {
                ArrayList<GroupModel> groups = parser.parseGetGroups(source, mUsername);
                if (groups != null) {
                    mGroups = groups;
                    mGroupsAdapter.setGroups(groups);
                    mGroupsAdapter.notifyDataSetChanged();
                    getGroupsMembers();
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }

    };
    protected int mProgress;

    private View mErrorLayout;
    private View mProgressLayout;
    private ExpandableListView mList;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.my_groups, null);
        mNotLoggedInLayout = v.findViewById(R.id.not_logged);
        mProgressLayout = v.findViewById(R.id.mygroups_progress);
        mErrorLayout = v.findViewById(R.id.mygroups_error);
        mList = (ExpandableListView) v.findViewById(R.id.mygroups_list);

        mErrorLayout.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                if (mGroups != null) {
                    mGroups.clear();
                }
                mGroupsAdapter.notifyDataSetChanged();
                getGroups();
            }
        });

        mGroupsAdapter = new GroupsAdapter(getActivity());
        mList.setAdapter(mGroupsAdapter);

        return v;
    }

    @Override
    public void onResume() {
        super.onResume();
        PreferencesProvider prefs = PreferencesProvider.getInstance(getActivity());
        mUsername = prefs.getString(PreferencesProvider.KEY_USERNAME);
        if (mUsername.equals(PreferencesProvider.DEFAULT_STRING)) {
            mNotLoggedInLayout.setVisibility(View.VISIBLE);
        } else {
            mNotLoggedInLayout.setVisibility(View.GONE);
            mPassword = prefs.getString(PreferencesProvider.KEY_HASH);
            getGroups();
        }
    }

    private void getGroups() {
        String getGroupsUrl = new ServerURLBuilder(getActivity()).getMyGroups(mUsername, mPassword);
        mErrorLayout.setVisibility(View.GONE);
        JsonArrayRequest r = new JsonArrayRequest(getGroupsUrl, mRequestGroupsListener, mErrorListener);
        QueueSingleton.getInstance(getActivity()).add(r);
        mProgress++;
        mProgressLayout.setVisibility(View.VISIBLE);
    }

    protected void getGroupsMembers() {
        for (GroupModel groupModel : mGroups) {
            if (getActivity() == null) {
                return;
            }
            final String groupName = groupModel.name;
            ServerURLBuilder b = new ServerURLBuilder(getActivity());
            String url = b.getUserInGroup(mUsername, mPassword, groupName);
            Listener<JSONArray> getUsersListener = new Listener<JSONArray>() {

                @Override
                public void onResponse(JSONArray source) {
                    JsonParser parser = new JsonParser();
                    mProgress--;
                    if (mProgress == 0) {
                        mProgressLayout.setVisibility(View.GONE);
                    }
                    try {
                        ArrayList<UserModel> users = parser.parseGetUsers(source);
                        if (users != null) {
                            for (GroupModel group : mGroups) {
                                if (group.name.equals(groupName)) {
                                    group.setUsers(users);
                                    mGroupsAdapter.notifyDataSetChanged();
                                    return;
                                }
                            }
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            };
            JsonArrayRequest r = new JsonArrayRequest(url, getUsersListener, mErrorListener);
            mProgress++;
            mProgressLayout.setVisibility(View.VISIBLE);
            QueueSingleton.getInstance(getActivity()).add(r);
        }
    }
}