package org.springblade.modules.email.service.impl;

import com.sun.mail.imap.IMAPFolder;
import com.sun.mail.imap.IMAPStore;
import com.xxl.job.core.util.DateUtil;
import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springblade.common.utils.ParseMail;
import org.springblade.core.tool.utils.StringUtil;
import org.springblade.modules.email.config.MailProperties;
import org.springblade.modules.email.config.MailSenderConfig;
import org.springblade.modules.email.entity.EmailAccount;
import org.springblade.modules.email.service.IEmailAccountService;
import org.springblade.modules.messageRecord.entity.MessageUser;
import org.springblade.modules.messageRecord.vo.MessageRecordVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import javax.mail.search.FlagTerm;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class EmailAccountServiceImpl implements IEmailAccountService {

	private static Logger logger = LoggerFactory.getLogger(EmailAccountServiceImpl.class);

	@Autowired
	MailSenderConfig senderConfig;

	@Autowired
	MailProperties mailProperties;


	@Override
	public Boolean senderEmail(EmailAccount account) {

		if (account.getEmails().size() > 0) {
			log.info(Thread.currentThread().getName());
			JavaMailSenderImpl javaMailSender = senderConfig.getSender();
			//一个复杂的邮件
			MimeMessage message = javaMailSender.createMimeMessage();
			try {
				//组装
				MimeMessageHelper helper = new MimeMessageHelper(message, true);

				//主题(标题)
				helper.setSubject(account.getSubject());

				helper.setText(account.getContent(), true);

				helper.setTo(account.getEmails().toArray(new String[account.getEmails().size()]));

				helper.setFrom(javaMailSender.getUsername());

				javaMailSender.send(message);
				return true;

			} catch (MessagingException e) {
				logger.error("邮件发送失败！", e);
				return false;
			}
		}
		return false;
	}

	@Override
	public Boolean sendMessageUserEmail(String title, String content, List<MessageUser> messageUserList) {

		List<String> emails = messageUserList.stream().filter(e -> StringUtil.isNotBlank(e.getEmail())).map(MessageUser::getEmail).collect(Collectors.toList());

		EmailAccount emailAccount = new EmailAccount();

		emailAccount.setEmails(emails);
		emailAccount.setSubject(title);
		emailAccount.setContent(content);

		return senderEmail(emailAccount);
	}


	@Override
	public List<MessageRecordVO> getUnreadList() throws MessagingException {
		Folder folder = null;
		Store store = senderConfig.getReceive();
		List<MessageRecordVO> MessageRecordVOList = new ArrayList<>();
		try {
			// 获得收件箱
			folder = store.getFolder("INBOX");
			// 以读写模式打开收件箱
			folder.open(Folder.READ_WRITE);
			//false 表示未读
			FlagTerm flagTerm = new FlagTerm(new Flags(Flags.Flag.SEEN), false);
			//获得收件箱的邮件列表
			Message[] messages = folder.search(flagTerm);
			// 打印不同状态的邮件数量
			System.out.println("收件箱中共" + messages.length + "封邮件!");
			System.out.println("收件箱中共" + folder.getUnreadMessageCount() + "封未读邮件!");
			System.out.println("收件箱中共" + folder.getNewMessageCount() + "封新邮件!");
			System.out.println("收件箱中共" + folder.getDeletedMessageCount() + "封已删除邮件!");

			System.out.println("------------------------开始解析邮件----------------------------------");
//			ParseMail.getMailTextContent(messages.)
			StringBuffer content = new StringBuffer(30);

//			for (int i = 0; i < messages.length; i++) {
//				System.out.println("消息:"+messages[i].getSubject());
//				String from = MimeUtility.decodeText(messages[i].getFrom()[0].toString());
//				InternetAddress internetAddress = new InternetAddress(from);
//				System.out.println("发件人：" + internetAddress.getPersonal() + '(' + internetAddress.getAddress() + ')');
//			}
			for (Message message : messages) {

				ParseMail.getMailTextContent(message, content);

				MessageRecordVO messageRecordVO = new MessageRecordVO();
				String from = MimeUtility.decodeText(message.getFrom()[0].toString());
				InternetAddress ia = new InternetAddress(from);

				System.out.println("发件人：" + ia.getPersonal() + '(' + ia.getAddress() + ')');
				System.out.println("主题：" + message.getSubject());
				System.out.println("主题fa：" + message.getFlags());
				if (message.getSentDate() != null) {
					System.out.println("邮件发送时间:" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(message.getSentDate()));
				}
				System.out.println("-------------------------------------------\n");
//				message.setFlag(Flags.Flag.SEEN, true);
				messageRecordVO.setTitle(message.getSubject());
				if (message.getSentDate() != null) {
					messageRecordVO.setStartTime(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(message.getSentDate()));
				}
				messageRecordVO.setUserName(ia.getPersonal() + '(' + ia.getAddress() + ')');
				messageRecordVO.setContent(String.valueOf(content));
				MessageRecordVOList.add(messageRecordVO);
			}
			return MessageRecordVOList;

		} catch (NoSuchProviderException e) {
			e.printStackTrace();
		} catch (MessagingException e) {
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (folder != null) {
					folder.close(false);
				}
				if (store != null) {
					store.close();
				}
			} catch (MessagingException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
}