package com.huaheng.pc.config.sendMail.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;

/**
 * Created by Enzo Cotter on 2019/9/6.
 */
@Service
public class MailServiceImpl implements MailService {

    private final Logger logger = LoggerFactory.getLogger(MailServiceImpl.class);

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

    @Resource
    private JavaMailSender mailSender;

    @Override
    public Boolean sendSimpleMail(String[] to, String subject, String content, String[] cc) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);//收信人
        message.setSubject(subject);//主题
        message.setText(content);//内容
        message.setFrom(from);//发信人
        if (cc.length != 0){
            message.setCc(cc);
        }
        try {
            mailSender.send(message);
            return true;
        } catch (MailException me){
            return false;
        }
    }

    @Override
    public Boolean sendHtmlMail(String[] to, String subject, String content, String[] cc) {
        logger.info("发送HTML邮件开始：{},{},{}", to, subject, content);
        MimeMessage message = mailSender.createMimeMessage();

        MimeMessageHelper helper;
        try {
            helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);//true代表支持html
            if (cc.length != 0){
                helper.setCc(cc);
            }
            mailSender.send(message);
            logger.info("发送HTML邮件成功");
            return true;
        } catch (MessagingException e) {
            logger.error("发送HTML邮件失败：", e);
            return false;
        }
    }

    @Override
    public Boolean sendAttachmentMail(String[] to, String subject, String content, String filePath, String[] cc) {
        logger.info("发送带附件邮件开始：{},{},{},{}", to, subject, content, filePath);
        MimeMessage message = mailSender.createMimeMessage();

        MimeMessageHelper helper;
        try {
            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 = file.getFilename();
            helper.addAttachment(fileName, file);//添加附件，可多次调用该方法添加多个附件
            mailSender.send(message);
            logger.info("发送带附件邮件成功");
            return true;
        } catch (MessagingException e) {
            logger.error("发送带附件邮件失败", e);
            return false;
        }
    }

    @Override
    public Boolean sendInlineResourceMail(String[] to, String subject, String content, String rscPath, String rscId, String[] cc) {
        logger.info("发送带图片邮件开始：{},{},{},{},{},{}", to, subject, content, rscPath, rscId, cc);
        MimeMessage message = mailSender.createMimeMessage();

        MimeMessageHelper helper;
        try {
            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);//重复使用添加多个图片
            mailSender.send(message);
            logger.info("发送带图片邮件成功");
            return true;
        } catch (MessagingException e) {
            logger.error("发送带图片邮件失败", e);
            return false;
        }
    }
}