package com.example.imagecutandzoom;

import org.jivesoftware.smack.Connection;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.Roster;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.provider.ProviderManager;
import org.jivesoftware.smackx.GroupChatInvitation;
import org.jivesoftware.smackx.PrivateDataManager;
import org.jivesoftware.smackx.packet.ChatStateExtension;
import org.jivesoftware.smackx.packet.LastActivity;
import org.jivesoftware.smackx.packet.OfflineMessageInfo;
import org.jivesoftware.smackx.packet.OfflineMessageRequest;
import org.jivesoftware.smackx.packet.SharedGroupsInfo;
import org.jivesoftware.smackx.provider.DataFormProvider;
import org.jivesoftware.smackx.provider.DelayInformationProvider;
import org.jivesoftware.smackx.provider.DiscoverInfoProvider;
import org.jivesoftware.smackx.provider.DiscoverItemsProvider;
import org.jivesoftware.smackx.provider.MUCAdminProvider;
import org.jivesoftware.smackx.provider.MUCOwnerProvider;
import org.jivesoftware.smackx.provider.MUCUserProvider;
import org.jivesoftware.smackx.provider.MessageEventProvider;
import org.jivesoftware.smackx.provider.MultipleAddressesProvider;
import org.jivesoftware.smackx.provider.RosterExchangeProvider;
import org.jivesoftware.smackx.provider.StreamInitiationProvider;
import org.jivesoftware.smackx.provider.VCardProvider;
import org.jivesoftware.smackx.provider.XHTMLExtensionProvider;
import org.jivesoftware.smackx.search.UserSearch;

/**
 * 
 * XMPP服务器连接工具类.
 * 
 * @author shimiso
 */
public class XmppConnectionManager {
	private XMPPConnection connection;
	private static ConnectionConfiguration connectionConfig;
	private static XmppConnectionManager xmppConnectionManager;

	private XmppConnectionManager() {

	}

	public static XmppConnectionManager getInstance() {
		if (xmppConnectionManager == null) {
			xmppConnectionManager = new XmppConnectionManager();
		}
		return xmppConnectionManager;
	}

	/**
	 * 初始化连接
	 * @param loginConfig
	 * @return
	 */
	public XMPPConnection init(IMConfig loginConfig) {
		Connection.DEBUG_ENABLED = false;
		ProviderManager pm = ProviderManager.getInstance();
		configure(pm);

		connectionConfig = new ConnectionConfiguration(
				loginConfig.getXmppHost(), loginConfig.getXmppPort(),
				loginConfig.getXmppServiceName());
		//connectionConfig.setSASLAuthenticationEnabled(false);// 不使用SASL验证,设置为false
		connectionConfig
				.setSecurityMode(ConnectionConfiguration.SecurityMode.enabled);
		// 允许自动连接
		connectionConfig.setReconnectionAllowed(false);
		// 允许登陆成功后更新在线状态
		connectionConfig.setSendPresence(true);
		// 收到好友邀请后manual表示需要经过同意,accept_all表示不经同意自动为好友
		Roster.setDefaultSubscriptionMode(Roster.SubscriptionMode.manual);
		connection = new XMPPConnection(connectionConfig);
		return connection;
	}

	/**
	 * 
	 * 返回一个有效的xmpp连接,如果无效则返回空.
	 * 
	 * @return
	 * @author shimiso
	 * @update 2012-7-4 下午6:54:31
	 */
	public XMPPConnection getConnection() {
		if (connection == null) {
			throw new RuntimeException("请先初始化XMPPConnection连接");
		}
		return connection;
	}

	/**
	 * 
	 * 销毁xmpp连接.
	 * 
	 * @author shimiso
	 * @update 2012-7-4 下午6:55:03
	 */
	public void disconnect() {
		if (connection != null) {
			connection.disconnect();
		}
	}

	public void configure(ProviderManager pm) {

		// Private Data Storage
		pm.addIQProvider("query", "jabber:iq:private",
				new PrivateDataManager.PrivateDataIQProvider());

		// Time
		try {
			pm.addIQProvider("query", "jabber:iq:time",
					Class.forName("org.jivesoftware.smackx.packet.Time"));
		} catch (ClassNotFoundException e) {
		}

		// XHTML
		pm.addExtensionProvider("html", "http://jabber.org/protocol/xhtml-im",
				new XHTMLExtensionProvider());

		// Roster Exchange
		pm.addExtensionProvider("x", "jabber:x:roster",
				new RosterExchangeProvider());
		// Message Events
		pm.addExtensionProvider("x", "jabber:x:event",
				new MessageEventProvider());
		// Chat State
		pm.addExtensionProvider("active",
				"http://jabber.org/protocol/chatstates",
				new ChatStateExtension.Provider());
		pm.addExtensionProvider("composing",
				"http://jabber.org/protocol/chatstates",
				new ChatStateExtension.Provider());
		pm.addExtensionProvider("paused",
				"http://jabber.org/protocol/chatstates",
				new ChatStateExtension.Provider());
		pm.addExtensionProvider("inactive",
				"http://jabber.org/protocol/chatstates",
				new ChatStateExtension.Provider());
		pm.addExtensionProvider("gone",
				"http://jabber.org/protocol/chatstates",
				new ChatStateExtension.Provider());

		// FileTransfer
		pm.addIQProvider("si", "http://jabber.org/protocol/si",
				new StreamInitiationProvider());

		// Group Chat Invitations
		pm.addExtensionProvider("x", "jabber:x:conference",
				new GroupChatInvitation.Provider());
		// Service Discovery # Items
		pm.addIQProvider("query", "http://jabber.org/protocol/disco#items",
				new DiscoverItemsProvider());
		// Service Discovery # Info
		pm.addIQProvider("query", "http://jabber.org/protocol/disco#info",
				new DiscoverInfoProvider());
		// Data Forms
		pm.addExtensionProvider("x", "jabber:x:data", new DataFormProvider());
		// MUC User
		pm.addExtensionProvider("x", "http://jabber.org/protocol/muc#user",
				new MUCUserProvider());
		// MUC Admin
		pm.addIQProvider("query", "http://jabber.org/protocol/muc#admin",
				new MUCAdminProvider());
		// MUC Owner
		pm.addIQProvider("query", "http://jabber.org/protocol/muc#owner",
				new MUCOwnerProvider());
		// Delayed Delivery
		pm.addExtensionProvider("x", "jabber:x:delay",
				new DelayInformationProvider());
		// Version
		try {
			pm.addIQProvider("query", "jabber:iq:version",
					Class.forName("org.jivesoftware.smackx.packet.Version"));
		} catch (ClassNotFoundException e) {
		}
		// VCard
		pm.addIQProvider("vCard", "vcard-temp", new VCardProvider());
		// Offline Message Requests
		pm.addIQProvider("offline", "http://jabber.org/protocol/offline",
				new OfflineMessageRequest.Provider());
		// Offline Message Indicator
		pm.addExtensionProvider("offline",
				"http://jabber.org/protocol/offline",
				new OfflineMessageInfo.Provider());
		// Last Activity
		pm.addIQProvider("query", "jabber:iq:last", new LastActivity.Provider());
		// User Search
		pm.addIQProvider("query", "jabber:iq:search", new UserSearch.Provider());
		// SharedGroupsInfo
		pm.addIQProvider("sharedgroup",
				"http://www.jivesoftware.org/protocol/sharedgroup",
				new SharedGroupsInfo.Provider());
		// JEP-33: Extended Stanza Addressing
		pm.addExtensionProvider("addresses",
				"http://jabber.org/protocol/address",
				new MultipleAddressesProvider());

	}
}