package com.beem.project.beem.ui;

import java.util.List;

import android.app.Activity;

import android.content.Intent;

import android.content.SharedPreferences;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.os.Handler;

import android.os.RemoteException;

import android.util.Log;

import android.view.KeyEvent;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.View.OnKeyListener;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.ScrollView;

import android.widget.TextView;

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.Message;

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

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

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

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

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

/**

 * This activity class provides the view for instant messaging after selecting a correspondant.

 * 

 * @author barbu

 */

public class SendIM extends Activity implements OnClickListener, OnKeyListener {

    /**

     * Listener for chat creation. (maybe not necessary)

     * 

     * @author darisk

     */

    private class OnChatListener extends IChatManagerListener.Stub {

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void chatCreated(IChat chat, boolean locally) throws RemoteException {

	    Log.i("LOG", "chatCreated");

	}

    }

    /**

     * Listener for new chat messages.

     * 

     * @author darisk

     */

    private class OnMessageListener extends IMessageListener.Stub {

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void processMessage(IChat chat, Message msg) throws RemoteException {

	    if (chat != mChat)

		return;

	    final Message m = msg;

	    mHandler.post(new Runnable() {

		@Override

		public void run() {

		    if (m.getBody() != null) {

			if (mSpeak == 2)

			    mText.append(m.getBody() + "\n");

			else {

			    String str = String.format(getString(R.string.SendIMSays), m.getFrom());

			    mText.append(str);

			    mText.append(m.getBody() + "\n");

			}

			mScrolling.fullScroll(ScrollView.FOCUS_DOWN);

			mToSend.requestFocus();

			mSpeak = 2;

		    }

		}

	    });

	}

	/**

	 * {@inheritDoc}

	 */

	@Override

	public void stateChanged(IChat chat) throws RemoteException {

	    // TODO: a integrer dans l'ui

	    // Log.d(TAG, "state changed");

	}

    }

    private static final String  TAG = "SEND_IM";

    private EditText             mToSend;

    private SendIMDialogSmiley   mSmyDialog;

    private SharedPreferences    mSet;

    private BeemApplication      mBeemApplication;

    private Handler              mHandler;

    private IXmppFacade          mService;

    private Contact              mContact;

    private IChatManager         mChatManager;

    private IChatManagerListener mChatManagerListener;

    private IMessageListener     mMessageListener;

    private IChat                mChat;

    private TextView             mText;

    private TextView             mLogin;

    private ScrollView           mScrolling;

    private char                 mSpeak;

    /**

     * Constructor.

     */

    public SendIM() {

	super();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void onClick(View view) {

	sendText();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onCreate(Bundle saveBundle) {

	super.onCreate(saveBundle);

	mHandler = new Handler();

	mChatManagerListener = new OnChatListener();

	mMessageListener = new OnMessageListener();

	mBeemApplication = BeemApplication.getApplication(this);

	setContentView(R.layout.sendim);

	mToSend = (EditText) findViewById(R.id.userText);

	mSet = getSharedPreferences("lol", MODE_PRIVATE);

	mSmyDialog = new SendIMDialogSmiley(this, mSet);

	mToSend.setOnClickListener(this);

	mToSend.setOnKeyListener(this);

	mLogin = (TextView) findViewById(R.id.sendimlogin);

	// mContact = getIntent().getParcelableExtra("contact");

	mContact = new Contact(getIntent().getData());

	setViewHeader();

	mText = (TextView) findViewById(R.id.sendimlist);

	mScrolling = (ScrollView) findViewById(R.id.sendimscroll);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public final boolean onCreateOptionsMenu(Menu menu) {

	super.onCreateOptionsMenu(menu);

	MenuInflater inflater = getMenuInflater();

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

	return true;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onDestroy() {

	super.onDestroy();

	if (mChatManager != null) {

	    try {

		mChatManager.removeChatCreationListener(mChatManagerListener);

		// TODO trouver quand detruire le chat

		// mChatManager.destroyChat(mChat);

	    } catch (RemoteException e) {

		Log.e(TAG, "mchat manager and SendIM destroy", e);

	    }

	}

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public boolean onKey(View v, int keyCode, KeyEvent event) {

	if (event.getAction() == KeyEvent.ACTION_DOWN) {

	    switch (keyCode) {

	    case KeyEvent.KEYCODE_DPAD_CENTER:

	    case KeyEvent.KEYCODE_ENTER:

		sendText();

		return true;

	    default:

		return false;

	    }

	}

	return false;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onNewIntent(Intent intent) {

	super.onNewIntent(intent);

	mContact = new Contact(intent.getData());

	setViewHeader();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public final boolean onOptionsItemSelected(MenuItem item) {

	switch (item.getItemId()) {

	case R.id.sendim_smiley:

	    mSmyDialog.show();

	    return true;

	default:

	    return false;

	}

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onPause() {

	super.onPause();

	try {

	    mChat.setOpen(false);

	} catch (RemoteException e) {

	    Log.d(TAG, "Error while closing chat", e);

	}

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onResume() {

	super.onResume();

	mBeemApplication = BeemApplication.getApplication(this);

	if (!mBeemApplication.isConnected())

	    mBeemApplication.startBeemService();

	mBeemApplication.callWhenConnectedToServer(mHandler, new Runnable() {

	    @Override

	    public void run() {

		mService = mBeemApplication.getXmppFacade();

		try {

		    if (mChatManager == null) {

			mChatManager = mService.getChatManager();

			mChatManager.addChatCreationListener(mChatManagerListener);

		    }

		    switchChat(mContact);

		} catch (RemoteException e) {

		    Log.e(TAG, "Error during chat manager creation", e);

		}

	    }

	});

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onStart() {

	super.onStart();

	// TODO cancel the notification if any

	if (mContact == null)

	    mContact = getIntent().getParcelableExtra("contact");

	mService = mBeemApplication.getXmppFacade();

	setViewHeader();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void onStop() {

	super.onStop();

	try {

	    mChat.setOpen(false);

	} catch (RemoteException e) {

	    Log.d(TAG, "mchat open false", e);

	}

	mBeemApplication.unbindBeemService();

    }

    /**

     * Send a message to the contact over the XMPP connection. Also display it on activity view.

     * TODO : Gerer l'exception si la connexion se coupe pendant la conversation

     */

    private void sendText() {

	String text = mToSend.getText().toString();

	if (!text.equals("")) {

	    Message msg = new Message(mContact.getJID(), Message.MSG_TYPE_CHAT);

	    msg.setBody(text);

	    try {

		mChat.sendMessage(msg);

		if (mSpeak != 1)

		    mText.append(getString(R.string.SendIMYouSay) + text + '\n');

		else

		    mText.append(text + "\n");

		mToSend.setText(null);

		mScrolling.fullScroll(ScrollView.FOCUS_DOWN);

		mToSend.requestFocus();

		mSpeak = 1;

	    } catch (RemoteException e) {

		// TODO Auto-generated catch block

		e.printStackTrace();

	    }

	}

    }

    /**

     * Set the header information in the window.

     */

    private void setViewHeader() {

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

	ImageView imgV = (ImageView) findViewById(R.id.sendimavatar);

	imgV.setImageDrawable(avatar);

	mLogin = (TextView) findViewById(R.id.sendimlogin);

	mLogin.setText(mContact.getJID());

	TextView status = (TextView) findViewById(R.id.sendimstatus);

	status.setTextSize(12);

	mLogin.setTextColor(getResources().getColor(R.color.white));

	String statmsg = mContact.getMsgState();

	if (statmsg != null)

	    status.setText(statmsg);

    }

    /**

     * Show the message history.

     * 

     * @param messages

     *            list of message to display

     */

    private void showMessageList(List<Message> messages) {

	mText.setText("");

	mSpeak = 0;

	for (Message message : messages) {

	    String from = message.getFrom();

	    if (from == null) {

		if (mSpeak != 1)

		    mText.append(getString(R.string.SendIMYouSay));

		mSpeak = 1;

	    } else {