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/*
* Copyright (C) 2014 Andrew Comminos
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package se.lublin.mumla.channel;
import android.app.SearchManager;
import android.content.ComponentName;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Intent;
import android.content.ServiceConnection;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.IBinder;
import android.util.Log;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import se.lublin.humla.IHumlaService;
import se.lublin.humla.IHumlaSession;
import se.lublin.humla.model.IChannel;
import se.lublin.humla.model.IUser;
import se.lublin.mumla.Constants;
import se.lublin.mumla.R;
import se.lublin.mumla.service.MumlaService;
public class ChannelSearchProvider extends ContentProvider {
public static final String INTENT_DATA_CHANNEL = "channel";
public static final String INTENT_DATA_USER = "user";
private IHumlaService mService;
private final Object mServiceLock = new Object();
private ServiceConnection mConn = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
mService = ((MumlaService.MumlaBinder) service).getService();
synchronized (mServiceLock) {
mServiceLock.notify();
}
}
@Override
public void onServiceDisconnected(ComponentName name) {
mService = null;
}
};
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
// TODO Auto-generated method stub
return 0;
}
@Override
public String getType(Uri uri) {
// TODO Auto-generated method stub
return null;
}
@Override
public Uri insert(Uri uri, ContentValues values) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean onCreate() {
return true;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// Try to connect to the service. Wait for conn to establish.
if(mService == null) {
Intent serviceIntent = new Intent(getContext(), MumlaService.class);
getContext().bindService(serviceIntent, mConn, 0);
synchronized (mServiceLock) {
try {
mServiceLock.wait(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(mService == null) {
Log.v(Constants.TAG, "Failed to connect to service from search provider!");
return null;
}
}
}
if (!mService.isConnected())
return null;
IHumlaSession session = mService.getSession();
String query = "";
for(int x=0;x<selectionArgs.length;x++) {
query += selectionArgs[x];
if(x != selectionArgs.length-1)
query += " ";
}
query = query.toLowerCase(Locale.getDefault());
MatrixCursor cursor = new MatrixCursor(new String[] { "_ID", SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA, SearchManager.SUGGEST_COLUMN_TEXT_1, SearchManager.SUGGEST_COLUMN_ICON_1, SearchManager.SUGGEST_COLUMN_TEXT_2, SearchManager.SUGGEST_COLUMN_INTENT_DATA });
List<IChannel> channels = channelSearch(session.getRootChannel(), query);
List<IUser> users = userSearch(session.getRootChannel(), query);
for(int x=0;x<channels.size();x++) {
IChannel channel = channels.get(x);
cursor.addRow(new Object[] { x, INTENT_DATA_CHANNEL, channel.getName(), R.drawable.ic_action_channels, getContext().getResources().getQuantityString(R.plurals.search_channel_users, channel.getSubchannelUserCount(), channel.getSubchannelUserCount()), channel.getId() });
}
for(int x=0;x<users.size();x++) {
IUser user = users.get(x);
cursor.addRow(new Object[] { x, INTENT_DATA_USER, user.getName(), R.drawable.ic_action_user_dark, getContext().getString(R.string.user), user.getSession() });
}
return cursor;
}
/**
* Recursively searches the channel tree for a user with a name containing the given string,
* ignoring case.
* @param root The channel to recursively search for users within.
* @param str The string to match against the user's name. Case insensitive.
* @return A list of users whose names contain str.
*/
private List<IUser> userSearch(IChannel root, String str) {
List<IUser> list = new LinkedList<IUser>();
userSearch(root, str, list);
return list;
}
/**
* @see #userSearch(IChannel,String)
*/
private void userSearch(IChannel root, String str, List<IUser> users) {
if (root == null) {
return;
}
for (IUser user : root.getUsers()) {
if (user != null && user.getName() != null
&& user.getName().toLowerCase().contains(str.toLowerCase())) {
users.add(user);
}
}
for (IChannel subc : root.getSubchannels()) {
if (subc != null)
userSearch(subc, str, users);
}
}
/**
* Recursively searches the channel tree for a channel with a name containing the given string,
* ignoring case.
* @param root The channel to recursively search for subchannels within.
* @param str The string to match against the channel's name. Case insensitive.
* @return A list of channels whose names contain str.
*/
private List<IChannel> channelSearch(IChannel root, String str) {
List<IChannel> list = new LinkedList<IChannel>();
channelSearch(root, str, list);
return list;
}
/**
* @see #channelSearch(IChannel,String)
*/
private void channelSearch(IChannel root, String str, List<IChannel> channels) {
if (root == null) {
return;
}
if (root.getName().toLowerCase().contains(str.toLowerCase())) {
channels.add(root);
}
for (IChannel subc : root.getSubchannels()) {
if (subc != null)
channelSearch(subc, str, channels);
}
}
@Override
public int update(Uri uri, ContentValues values, String selection,
String[] selectionArgs) {
// TODO Auto-generated method stub
return 0;
}
}
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