package com.zteits.pay.configuration.mail;

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.List;
import java.util.Random;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

import com.alibaba.fastjson.JSONObject;
import com.zteits.clouds.api.dto.pay.dto.TdCCustInvoiceMailDTO;
import com.zteits.pay.dao.TdCCustInvoiceMailDao;
import com.zteits.pay.domain.TdCCustInvoiceMail;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import com.clouds.common.utils.MailUtil;
import com.zteits.clouds.api.dto.pay.dto.TdCCustInvoiceSaleDTO;

@Service("com.zteits.pay.configuration.mail.MailService")
public class MailService {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Autowired
    private JavaMailSender sender;
    @Autowired
    private TdCCustInvoiceMailDao tdCCustInvoiceMailDao;

    @Value("${spring.mail.username}")
    private String from;

    /**
     * 发送纯文本的简单邮件
     * @param to
     * @param subject
     * @param content
     */
    public void sendSimpleMail(String to, String subject, String content){
        MimeMessage message = sender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, false);
            helper.setFrom(from, subject);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            sender.send(message);
            logger.info("html邮件已经发送。");
        } catch (MessagingException | UnsupportedEncodingException e) {
            logger.error("发送异常告警邮件发生异常！", e);
        }
    }

    /**
     * 发送html格式的邮件
     * @param to
     * @param subject
     * @param content
     */
    public void sendHtmlMail(String to, String subject, String content){
        MimeMessage message = sender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            sender.send(message);
            logger.info("html邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！", e);
        }
    }

    /**
     * 发送带附件的邮件
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    public void sendAttachmentsMail(String to, String subject, String content, String filePath){
        MimeMessage message = sender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource file = new FileSystemResource(new File(filePath));
            String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
            helper.addAttachment(fileName, file);

            sender.send(message);
            logger.info("带附件的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送带附件的邮件时发生异常！", e);
        }
    }

    /**
     * 发送嵌入静态资源（一般是图片）的邮件
     * @param to
     * @param subject
     * @param content 邮件内容，需要包括一个静态资源的id，比如：<img src=\"cid:rscId01\" >
     * @param rscPath 静态资源路径和文件名
     * @param rscId 静态资源id
     */
    public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId){
        MimeMessage message = sender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            FileSystemResource res = new FileSystemResource(new File(rscPath));
            helper.addInline(rscId, res);

            sender.send(message);
            logger.info("嵌入静态资源的邮件已经发送。");
        } catch (MessagingException e) {
            logger.error("发送嵌入静态资源的邮件时发生异常！", e);
        }
    }

    /**
     * 发送html格式的邮件-单个发件箱
     * @param to
     * @param subject
     * @param content
     * @throws UnsupportedEncodingException
     */
    public void sendHtmlMail(String to, String subject, String content,TdCCustInvoiceMailDTO mail) throws UnsupportedEncodingException{
        sender = MailUtil.createMailSender(mail);
        MimeMessage message = sender.createMimeMessage();

        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(mail.getServerEmail(),StringUtils.isEmpty(mail.getServerEmailName()) ? "" : mail.getServerEmailName());
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            sender.send(message);
            logger.info("html邮件已经发送。to:{}",to);
            //更新发件箱发送信息
            TdCCustInvoiceMail record = new TdCCustInvoiceMail();
            record.setSendNum(mail.getSendNum() + 1);
            record.setSendDate(new Date());
            tdCCustInvoiceMailDao.updateMailsById(record,mail.getId());
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！{}",JSONObject.toJSON(mail));
            logger.error("发送html邮件时发生异常！{}", JSONObject.toJSON(e));
            TdCCustInvoiceMail record = new TdCCustInvoiceMail();
            record.setErrorMsg(JSONObject.toJSONString(e));
            record.setSendDate(new Date());
            tdCCustInvoiceMailDao.updateMailsById(record,mail.getId());
        }
    }
    /**
     * 发送html格式的邮件-多发件箱
     * @param to
     * @param subject
     * @param content
     * 多个发件箱
     * @throws UnsupportedEncodingException
     */
    public void sendHtmlMail(String to, String subject, String content, List<TdCCustInvoiceMailDTO> mails) throws UnsupportedEncodingException{
        for(TdCCustInvoiceMailDTO m : mails) {
            Random random = new Random();
            int n = random.nextInt(mails.size());
            TdCCustInvoiceMailDTO mail = mails.get(n);
            sender = MailUtil.createMailSender(mail);
            MimeMessage message = sender.createMimeMessage();

            try {
                MimeMessageHelper helper = new MimeMessageHelper(message, true);
                helper.setFrom(mail.getServerEmail(),StringUtils.isEmpty(mail.getServerEmailName()) ? "" : mail.getServerEmailName());
                helper.setTo(to);
                helper.setSubject(subject);
                helper.setText(content, true);

                sender.send(message);
                logger.info("html邮件已经发送。to:{}",to);

                //更新发件箱发送信息
                TdCCustInvoiceMail record = new TdCCustInvoiceMail();
                record.setSendNum(mail.getSendNum() + 1);
                record.setSendDate(new Date());
                tdCCustInvoiceMailDao.updateMailsById(record,mail.getId());
                break;
            } catch (MessagingException e) {
                logger.error("发送html邮件时发生异常！{}",JSONObject.toJSON(mail));
                logger.error("发送html邮件时发生异常！{}", JSONObject.toJSON(e));
                TdCCustInvoiceMail record = new TdCCustInvoiceMail();
                record.setErrorMsg(JSONObject.toJSONString(e));
                record.setSendDate(new Date());
                tdCCustInvoiceMailDao.updateMailsById(record,mail.getId());
                continue;
            }
        }

    }




}