package com.beem.project.beem.ui;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.jivesoftware.smack.util.StringUtils;

import android.app.AlertDialog;

import android.app.Dialog;

import android.app.ExpandableListActivity;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.SharedPreferences;

import android.database.DataSetObserver;

import android.graphics.drawable.Drawable;

import android.net.Uri;

import android.os.Bundle;

import android.os.Handler;

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.view.View.OnClickListener;

import android.view.View.OnLongClickListener;

import android.widget.ExpandableListAdapter;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

import com.beem.project.beem.BeemApplication;

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.Status;

public class ContactList extends ExpandableListActivity {

    private static final String TAG = "CONTACTLIST_ACT";

    private static final int PREFERENCECHANGED = 0;

    private static final String DEFAULT_GROUP = "Default";

    private IXmppFacade mService = null;

    private MyExpandableListAdapter mAdapter;

    private BeemApplication mBeemApplication;

    private BeemRosterListener mRosterListener;

    private SharedPreferences mSettings;

    private IRoster mRoster;

    private Map<String, List<Contact>> groupMap;

    private List<String> groupName;

    private List<Contact> mListContact;

    private Handler mHandler;

    @Override

    protected void onCreate(Bundle saveBundle) {

	super.onCreate(saveBundle);

	mHandler = new Handler();

	mRosterListener = new BeemRosterListener();

	mSettings = getSharedPreferences(getString(R.string.PreferenceFileName), MODE_PRIVATE);

	mBeemApplication = BeemApplication.getApplication(this);

	if (mSettings.getString(getString(R.string.PreferenceHostKey), "").equals(""))

	    startActivityForResult(new Intent(this, ContactListSettings.class), PREFERENCECHANGED);

    }

    @Override

    protected void onResume() {

	super.onResume();

	mBeemApplication.callWhenConnectedToServer(mHandler, new Runnable() {

	    @Override

	    public void run() {

		mService = mBeemApplication.getXmppFacade();

		try {

		    mRoster = mService.getRoster();

		} catch (RemoteException e1) {

		    Log.e(TAG, "Get roster failed", e1);

		}

		if (mRoster != null) {

		    try {

			mRoster.addConnectionListener(mRosterListener);

		    } catch (RemoteException e) {

			e.printStackTrace();

		    }

		}

		if (mAdapter == null)

		    callbackShowContactList();

	    }

	});

    }

    @Override

    protected void onDestroy() {

	mBeemApplication.unbindBeemService();

	super.onDestroy();

    }

    private void callbackShowContactList() {

	/*

	 * @TODO: A ameliorer apres listener de nikita

	 */

	if (mRoster != null)

	    try {

		buildContactList(mRoster.getContactList());

	    } catch (RemoteException e) {

		e.printStackTrace();

	    }

    }

    /**

     * 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.contactlistmenu, 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.account_edit:

		startActivityForResult(new Intent(this, ContactListSettings.class), PREFERENCECHANGED);

		return true;

	    case R.id.account_about:

		Intent t = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.beem-project.com"));

		startActivity(t);

		return true;

	    case R.id.account_create:

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

		return true;

	    case R.id.add_contact:

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

		return true;

	    default:

		return false;

	}

    }

    /*

     * @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition,

     * long id) { try { } catch (NullPointerException e) { Log.e(TAG, "Child not found", e); return false; } }

     */

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

	if (requestCode == PREFERENCECHANGED) {

	    if (resultCode == RESULT_OK) {

		mAdapter = null;

		setListAdapter(mAdapter);

		mBeemApplication.stopBeemService();

	    }

	}

    }

    private void buildContactList(List<Contact> listContact) {

	mListContact = listContact;

	groupMap = new HashMap<String, List<Contact>>();

	groupName = new ArrayList<String>();

	for (Contact contact : listContact) {

	    for (String group : contact.getGroups()) {

		if (!groupMap.containsKey(group)) {

		    groupMap.put(group, new ArrayList<Contact>());

		    groupName.add(group);

		}

		try {

		    groupMap.get(group).add(contact);

		} catch (NullPointerException e) {

		    Log.e(TAG, "Failed to find group in groupMap", e);

		}

	    }

	    if (contact.getGroups().isEmpty()) {

		if (!groupMap.containsKey(DEFAULT_GROUP)) {

		    groupMap.put(DEFAULT_GROUP, new ArrayList<Contact>());

		    groupName.add(DEFAULT_GROUP);

		}

		groupMap.get(DEFAULT_GROUP).add(contact);

	    }

	}

	mAdapter = new MyExpandableListAdapter();

	setListAdapter(mAdapter);

    }

    private class MyExpandableListAdapter implements ExpandableListAdapter {

	private List<DataSetObserver> observers;

	public MyExpandableListAdapter() {

	    observers = new ArrayList<DataSetObserver>();

	}

	public void changed() {

	    for (DataSetObserver obs : observers) {

		obs.onChanged();

	    }

	}

	@Override

	public boolean areAllItemsEnabled() {

	    return true;

	}

	@Override

	public Object getChild(int groupPosition, int childPosition) {

	    try {

		return groupMap.get(groupName.get(groupPosition)).get(childPosition);

	    } catch (NullPointerException e) {

		Log.e(TAG, "Child not found", e);

		return null;

	    }

	}

	@Override

	public long getChildId(int groupPosition, int childPosition) {

	    try {

		groupMap.get(groupName.get(groupPosition)).get(childPosition);

	    } catch (NullPointerException e) {

		Log.e(TAG, "Child not found", e);

		return 0;

	    }

	    return childPosition;

	}

	void createDialog(Contact contact) {

	    Dialog dialogContact= new ContactDialog(ContactList.this, contact);

	    dialogContact.show();

	}

	class MyOnLongClickListener implements OnLongClickListener {

	    @Override

	    public boolean onLongClick(View v) {

		TextView jidTextView = (TextView) v.findViewById(R.id.contactlistpseudo);

		String jid = jidTextView.getText().toString();

		for (Contact curContact : mListContact) {

		    if (jid.equals(curContact.getJID())) {

			createDialog(curContact);

			break;

		    }

		}

		return true;

	    }

	}

	class MyOnClickListener implements OnClickListener {

	    @Override

	    public void onClick(View v) {

		TextView jidTextView = (TextView) v.findViewById(R.id.contactlistpseudo);

		String jid = jidTextView.getText().toString();

		for (Contact curContact : mListContact) {

		    if (jid.equals(curContact.getJID())) {

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

			i.putExtra("contact", curContact);

			startActivity(i);

			break;

		    }

		}

	    }

	}

	@Override

	public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,

	    ViewGroup parent) {

	    View v;

	    if (convertView == null) {

		v = LayoutInflater.from(ContactList.this).inflate(R.layout.contactlistcontact, null);

		Log.d(TAG, "Convert view est vide sur un getChildView");

	    } else {

		v = convertView;

	    }

	    bindView(v, groupMap.get(groupName.get(groupPosition)).get(childPosition));

	    v.setOnLongClickListener(new MyOnLongClickListener());

	    v.setOnClickListener(new MyOnClickListener());

	    return v;

	}

	@Override

	public int getChildrenCount(int groupPosition) {

	    try {

		return groupMap.get(groupName.get(groupPosition)).size();

	    } catch (NullPointerException e) {

		Log.e(TAG, "Child not found", e);

		return 0;

	    }

	}

	@Override

	public long getCombinedChildId(long groupId, long childId) {

	    return 1000 * groupId + childId;

	}

	@Override

	public long getCombinedGroupId(long groupId) {

	    return 1000 * groupId;

	}

	@Override

	public Object getGroup(int groupPosition) {

	    try {

		return groupMap.get(groupName.get(groupPosition));

	    } catch (NullPointerException e) {

		Log.e(TAG, "Group not found", e);

		return null;

	    }

	}

	@Override

	public int getGroupCount() {

	    return groupMap.size();

	}

	@Override

	public long getGroupId(int groupPosition) {

	    return groupPosition;

	}

	@Override

	public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {

	    Log.d(TAG, "View getGroupView");

	    View holder = LayoutInflater.from(ContactList.this).inflate(R.layout.contactlistgroup, null);

	    TextView groupTextView = (TextView) holder.findViewById(R.id.textgroup);

	    groupTextView.setText(groupName.get(groupPosition));

	    return holder;

	}

	@Override

	public boolean hasStableIds() {

	    Log.d(TAG, "boolean hasStableIds");

	    return false;

	}

	@Override

	public boolean isChildSelectable(int groupPosition, int childPosition) {

	    Log.d(TAG, "boolean isChildSelectable");

	    return !false;

	}

	@Override

	public boolean isEmpty() {

	    return groupMap.isEmpty();

	}

	@Override

	public void onGroupCollapsed(int groupPosition) {

	}

	@Override

	public void onGroupExpanded(int groupPosition) {

	}

	@Override

	public void registerDataSetObserver(DataSetObserver observer) {

	    Log.d(TAG, "registerDataSetObserver");

	    observers.add(observer);

	}

	@Override

	public void unregisterDataSetObserver(DataSetObserver observer) {

	    Log.d(TAG, "unregisterDataSetObserver");

	    observers.remove(observer);

	}

	private void bindView(View view, Contact curContact) {

	    if (curContact != null) {

		ImageView imgV = (ImageView) view.findViewById(R.id.contactliststatus);

		Drawable imageDrawable = null;

		switch (curContact.getStatus()) {

		    case Status.CONTACT_STATUS_AVAILABLE:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.online);

			break;

		    case Status.CONTACT_STATUS_AVAILABLE_FOR_CHAT:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.chat);

			break;

		    case Status.CONTACT_STATUS_AWAY:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.away);

			break;

		    case Status.CONTACT_STATUS_BUSY:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.dnd);

			break;

		    case Status.CONTACT_STATUS_DISCONNECT:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.offline);

			break;

		    case Status.CONTACT_STATUS_UNAVAILABLE:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.requested);

			break;

		    default:

			imageDrawable = (Drawable) getResources().getDrawable(R.drawable.error);

			break;

		}

		imgV.setImageDrawable(imageDrawable);

		TextView v = (TextView) view.findViewById(R.id.contactlistpseudo);

		if (v != null) {

		    v.setText(curContact.getJID());

		}

		v = (TextView) view.findViewById(R.id.contactlistmsgperso);

		if (v != null) {

		    v.setText(curContact.getMsgState());

		}

		// TODO: Rajouter l'avatar du contact getAvatar() dans la classe

		imgV = (ImageView) view.findViewById(R.id.contactlistavatar);

		if (imgV != null) {

		    imageDrawable = (Drawable) getResources().getDrawable(R.drawable.avatar);

		    imgV.setImageDrawable(imageDrawable);

		}

	    }

	}

    }

    private class BeemRosterListener extends IBeemRosterListener.Stub {

	@Override

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

	    Log.i(TAG, "ENTRIES ADDED");

	}

	@Override

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

	    Log.i(TAG, "ENTRIES DEL");

	}

	@Override

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

	    Log.i(TAG, "ENTRIES UPD");

	}

	@Override

	public void onPresenceChanged(PresenceAdapter presence) throws RemoteException {

	    for (Contact curContact : mListContact) {

		if (curContact.getJID().equals(StringUtils.parseBareAddress(presence.getFrom()))) {

		    curContact.setStatus(presence);

		    mHandler.post(new Runnable() {

			@Override

			public void run() {

			    mAdapter.changed();

			}

		    });

		    return;

		}

	    }

	}

    }

}