package org.egl_cepgl.pm.service;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import jakarta.mail.MessagingException;
import jakarta.mail.internet.MimeMessage;
import org.egl_cepgl.pm.dto.EmailDto;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;

@Service
public class ShareDocService
{
    @Autowired
    private JavaMailSender mailSender;

    @Autowired
    private Configuration freemarkerConfig;

    @Autowired
    private SettingService settingService;

    @Value("${file.upload-dir}") String uploadDir;

    public EmailDto sendEmail(EmailDto obj)
    {
        MimeMessage message = mailSender.createMimeMessage();
        try {
            // set mediaType
            MimeMessageHelper helper = new MimeMessageHelper(message, MimeMessageHelper.MULTIPART_MODE_MIXED_RELATED,
                    StandardCharsets.UTF_8.name());
            // add attachment
            //helper.addAttachment("logo.png", new ClassPathResource("logo.png"));
            Map<String, Object> model = new HashMap<>();
            model.put("app_name", this.settingService.getSetting());
            model.put("message", obj.getMessage());
            model.put("uploadDir", this.uploadDir);
            model.put("procs", obj.getProcs());
            Template t = freemarkerConfig.getTemplate("shareDoc.ftlh");
            String html = FreeMarkerTemplateUtils.processTemplateIntoString(t, model);
            helper.setTo(obj.getEmail_to());
            if(obj.getEmail_cc().length>0){
                helper.setCc(obj.getEmail_cc());
            }
            helper.setText(html, true);
            helper.setSubject(obj.getSubject());
            helper.setFrom(obj.getEmailfrom());
            mailSender.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        } catch (TemplateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return obj;
    }

    public void sendHtmlEmailWithFreemarker(String toEmail, String subject, String userName, String orderId)
    {
        MimeMessage mimeMessage = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true); // 'true' for multipart message
            helper.setTo(toEmail);
            helper.setSubject(subject);

            // Prepare the data model for the FreeMarker template
            Map<String, Object> model = new HashMap<>();
            model.put("userName", userName);
            model.put("orderId", orderId);

            // Get the FreeMarker template and process it into a string
            Template template = freemarkerConfig.getTemplate("email-template.ftlh");
            String htmlContent = FreeMarkerTemplateUtils.processTemplateIntoString(template, model);

            // Set the email content as HTML
            helper.setText(htmlContent, true); // 'true' indicates HTML content

            // Send the email
            mailSender.send(mimeMessage);
        } catch (Exception e) {
            e.printStackTrace();
            // Handle exceptions
        }
    }

}