package fengyun.Fastmail.beans;

import java.io.*;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import fengyun.Fastmail.Maildir.MaildirStore;
import fengyun.Fastmail.Maildir.MaildirFolder;
import fengyun.Fastmail.Maildir.MaildirMessage;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Date;
import java.util.Vector;
import java.io.File;
import javax.activation.FileDataSource;

/**
 * 發送消息
 * @author sanware @ fengyun
 * @version 1.01
 * 
 */
public class MessageSend {
	
	/**
	 * 發送消息
	 */
	public static int Send(HttpServletRequest request) {
	
		BeansConstants CONST = BeansConstants.getInstance();
		int status = CONST.OK;
		
		String to = request.getParameter(CONST.to);
		if (to == null) {
			return CONST.MAILTO_ERROR;
		}
		
		String cc = request.getParameter(CONST.cc);
		String bcc = request.getParameter(CONST.bcc);
		
		String subject = request.getParameter(CONST.subject);
		if (subject == null) subject = "";
		
		String body = request.getParameter(CONST.body);
		if (body == null) body = "";

		HttpSession httpsession = request.getSession(false);
		if (httpsession == null) {
			return CONST.HTTPSESSION_ERROR;
		}

		String from = (String)httpsession.getAttribute(CONST.FastmailAddress);
		try {
			MaildirStore store = (MaildirStore)httpsession.getAttribute(CONST.FastmailStore);
			FolderView folderview = (FolderView)httpsession.getAttribute(CONST.FastmailFolderView);
			MaildirFolder folder = (MaildirFolder)store.getFolder(CONST.snt);
		
			Message newmsg = new MimeMessage(store.getSession());
			newmsg.setFrom(InternetAddress.parse(from,false)[0]);
			newmsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to,false));
			if (cc != null) newmsg.setRecipients(Message.RecipientType.CC,InternetAddress.parse(cc,false));
			if (bcc != null) newmsg.setRecipients(Message.RecipientType.BCC,InternetAddress.parse(bcc,false));
			newmsg.setHeader(CONST.mailerkey,CONST.mailer);
			newmsg.setSentDate(new Date());
			newmsg.setSubject(subject);

			String strSave = request.getParameter(CONST.save);
			boolean isSave = true;
			if (strSave == null || !strSave.equals("true")) isSave = false; 
	
			//附件處理
			Vector attach = (Vector)httpsession.getAttribute(CONST.FastmailAttach);
			boolean hasAttachment = false;
			for(int i = 0;attach != null && i< attach.size();i++) {
				Attachment tmp = (Attachment)attach.get(i);
				if (tmp.isAttached()) {
					hasAttachment = true;
					break;
				}
			}
			try {
				if (hasAttachment) {
					MessageAction.saveasmulti(newmsg,body,attach);
				}
				else {
					MessageAction.saveastext(newmsg,body);
				}
			}
			catch(MessagingException me) {
				me.printStackTrace();
				return CONST.MSGCREATE_ERROR;
			}
			try {
				Transport.send(newmsg);
				for(int i=0;attach!=null && i<attach.size();) {
					Attachment ai = (Attachment)attach.elementAt(i); 
					if (!ai.isUpload()) attach.remove(ai);
					else {
						ai.setAttached(false);
						i++;
					}
				}
			}
			catch(MessagingException me) {
				me.printStackTrace();
				return CONST.MSGSEND_ERROR;
			}
			if (isSave) {
				if (newmsg.getSize() + folderview.getTotalDiskUsed() > folderview.getTotalSize()) return CONST.MAILBOXFULL;
				if (hasAttachment) {
					newmsg.saveChanges();
				}
				try {
					String MessageID = folder.save((Message)newmsg,'T');
					if (store.getSession().getDebug()) {
						if (MessageID != null) 
							System.out.println("DEBUG: The Message" + MessageID + " has been saved.");
					}
				}
				catch(MessagingException me) {
					me.printStackTrace();
					System.out.println("DEBUG: SAVE ERROR");
					return CONST.MSGSAVE_ERROR;
				}
			}
		}
		catch(AddressException ae) {
			ae.printStackTrace();
			return CONST.ADDRESS_ERROR;
		}
		catch(MessagingException me) {
			me.printStackTrace();
			return CONST.FOLDERID_ERROR;
		}
		return status;
	}
}