package com.beem.project.beem.ui;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.jivesoftware.smack.util.StringUtils;

import android.app.Activity;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.ServiceConnection;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.os.Handler;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.BaseAdapter;

import android.widget.Gallery;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.AdapterView.OnItemLongClickListener;

import com.beem.project.beem.R;

import com.beem.project.beem.service.Contact;

import com.beem.project.beem.service.PresenceAdapter;

import com.beem.project.beem.service.aidl.IBeemRosterListener;

import com.beem.project.beem.service.aidl.IRoster;

import com.beem.project.beem.service.aidl.IXmppFacade;

import com.beem.project.beem.utils.BeemBroadcastReceiver;

import com.beem.project.beem.utils.Status;

/**

 * The contact list activity displays the roster of the user.

 */

public class ContactList extends Activity {

    private static final Intent SERVICE_INTENT = new Intent();

    private static final int REQUEST_CODE = 1;

    private BeemContactList mAdapterContactList;

    private BeemBanner mAdapterBanner;

    private IRoster mRoster;

    private List<Contact> mListContact = new ArrayList<Contact>();

    private List<String> mListGroup = new ArrayList<String>();

    private Map<String, List<Contact>> mContactOnGroup = new HashMap<String, List<Contact>>();

    private String mCurGroup;

    private Handler mHandler;

    private IXmppFacade mXmppFacade;

    private final ServiceConnection mServConn = new BeemServiceConnection();

    private BeemBroadcastReceiver mReceiver;

    static {

	SERVICE_INTENT.setComponent(new ComponentName("com.beem.project.beem", "com.beem.project.beem.BeemService"));

    }

    /**

     * Constructor.

     */

    public ContactList() {

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onCreate(Bundle saveBundle) {

	super.onCreate(saveBundle);

	setContentView(R.layout.contactlist);

	mAdapterContactList = new BeemContactList(this);

	mAdapterBanner = new BeemBanner(this);

	mHandler = new Handler();

	mReceiver = new BeemBroadcastReceiver(mServConn);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onResume() {

	super.onResume();

	this.registerReceiver(mReceiver, new IntentFilter(BeemBroadcastReceiver.BEEM_CONNECTION_CLOSED));

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onPause() {

	super.onPause();

	this.unregisterReceiver(mReceiver);

    }

    /**

     * Callback for menu creation.

     * @param menu the menu created

     * @return true on success, false otherwise

     */

    @Override

    public final boolean onCreateOptionsMenu(Menu menu) {

	super.onCreateOptionsMenu(menu);

	MenuInflater inflater = getMenuInflater();

	inflater.inflate(R.menu.contact_list, menu);

	return true;

    }

    /**

     * Callback for menu item selected.

     * @param item the item selected

     * @return true on success, false otherwise

     */

    @Override

    public final boolean onOptionsItemSelected(MenuItem item) {

	switch (item.getItemId()) {

	    case R.id.contact_list_menu_settings:

		startActivityForResult(new Intent(this, Settings.class), REQUEST_CODE);

		return true;

	    case R.id.contact_list_menu_add_contact:

		startActivity(new Intent(ContactList.this, AddContact.class));

		return true;

	    default:

		return false;

	}

    }

    @Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

	super.onActivityResult(requestCode, resultCode, data);

	if (requestCode == REQUEST_CODE) {

	    if (resultCode == 69) {

		stopService(SERVICE_INTENT);

		finish();

		startActivity(new Intent(this, Login.class));

	    }

	}

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onStart() {

	super.onStart();

	bindService(SERVICE_INTENT, mServConn, BIND_AUTO_CREATE);

	mReceiver.setBinded();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onStop() {

	super.onStop();

	if (mReceiver.isBinded())

	    unbindService(mServConn);

    }

    /**

     * Comparator Contact by Name.

     */

    class ComparatorContactListByName<T> implements Comparator<T> {

	/**

	 * Constructor.

	 */

	public ComparatorContactListByName() {

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public int compare(T c1, T c2) {

	    return ((Contact) c1).getName().compareToIgnoreCase(((Contact) c2).getName());

	}

    }

    /**

     * Comparator Contact by status and name.

     */

    class ComparatorContactListByStatusAndName<T> implements Comparator<T> {

	/**

	 * Constructor.

	 */

	public ComparatorContactListByStatusAndName() {

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public int compare(T c1, T c2) {

	    if (((Contact) c1).getStatus() < ((Contact) c2).getStatus()) {

		return 1;

	    } else if (((Contact) c1).getStatus() > ((Contact) c2).getStatus()) {

		return -1;

	    } else

		return ((Contact) c1).getName().compareToIgnoreCase(((Contact) c2).getName());

	}

    }

    /**

     * Contact List construction.

     */

    private void buildContactList() {

	if (mCurGroup != null) {

	    mListContact = mContactOnGroup.get(mCurGroup);

	}

	sortBeemContactList();

	ListView listView = (ListView) findViewById(R.id.contactlist);

	listView.setOnItemClickListener(new BeemContactListOnClick());

	listView.setOnItemLongClickListener(new BeemContactListOnLongClick());

	listView.setAdapter(mAdapterContactList);

    }

    /**

     * buildBanner.

     */

    private void buildBanner() {

	Gallery g = (Gallery) findViewById(R.id.contactlist_banner);

	g.setOnItemClickListener(new OnItemClickGroupName());

	g.setAdapter(mAdapterBanner);

    }

    /**

     * Event simple click on item of the contact list.

     */

    public class BeemContactListOnClick implements OnItemClickListener {

	/**

	 * Constructor.

	 */

	public BeemContactListOnClick() {

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void onItemClick(AdapterView<?> arg0, View v, int pos, long lpos) {

	    Contact c = mListContact.get(pos);

	    Intent i = new Intent(ContactList.this, SendIM.class);

	    i.setData(c.toUri());

	    startActivity(i);

	}

    }

    /**

     * Event long click on item of the contact list.

     */

    public class BeemContactListOnLongClick implements OnItemLongClickListener {

	/**

	 * Constructor.

	 */

	public BeemContactListOnLongClick() {

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public boolean onItemLongClick(AdapterView<?> arg0, View v, int pos, long lpos) {

	    Contact c = mListContact.get(pos);

	    dialogContact.setOwnerActivity(ContactList.this);

	    dialogContact.show();

	    return true;

	}

    }

    /**

     * Event simple click on middle groupe name.

     */

    private class OnItemClickGroupName implements OnItemClickListener {

	/**

	 * Constructor.

	 */

	public OnItemClickGroupName() {

	}

	@Override

	public void onItemClick(AdapterView<?> arg0, View v, int i, long l) {

	    mCurGroup = mListGroup.get(i);

	    buildContactList();

	}

    }

    /**

     * Sort the contact list.

     */

    private void sortBeemContactList() {

	Collections.sort(mListContact, new ComparatorContactListByStatusAndName<Contact>());

    }

    /**

     * Listener on service event.

     */

    private class BeemRosterListener extends IBeemRosterListener.Stub {

	/**

	 * Constructor.

	 */

	public BeemRosterListener() {

	}

	/**

	 * Refresh the contact list.

	 */

	private class RunnableChange implements Runnable {

	    /**

	     * Constructor.

	     */

	    public RunnableChange() {

	    }

	    /**

	     * {@inheritDoc}

	     */

	    @Override

	    public void run() {

		sortBeemContactList();

		mAdapterContactList.notifyDataSetChanged();

		mAdapterBanner.notifyDataSetChanged();

	    }

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void onEntriesAdded(List<String> addresses) throws RemoteException {

	    for (String newName : addresses) {

		Contact c = new Contact(newName);

		mListContact.add(c);

	    }

	    mHandler.post(new RunnableChange());

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void onEntriesDeleted(List<String> addresses) throws RemoteException {

	    for (String cToDelete : addresses) {

		for (Contact c : mListContact) {

		    if (c.getJID().equals(cToDelete)) {

			mListContact.remove(c);

			break;

		    }

		}

	    }