[feat] 메일 전송 api

src/main/java/com/Nunbody/domain/Mail/dto/resquest/EmailReqDto.java

@@ -1,6 +1,7 @@
 package com.Nunbody.domain.Mail.dto.resquest;
 
 public record EmailReqDto(
+        String platform,
         String mail,
         String header,
         String body

src/main/java/com/Nunbody/domain/Mail/service/EmailService.java

@@ -1,18 +1,18 @@
 package com.Nunbody.domain.Mail.service;
 
 import com.Nunbody.domain.Mail.dto.resquest.EmailReqDto;
-import com.Nunbody.external.GmailClient;
+import com.Nunbody.external.MailClient;
 import jakarta.mail.internet.MimeMessage;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 @Service
 @RequiredArgsConstructor
 public class EmailService {
-    private final GmailClient gmailClient;
+    private final MailClient mailClient;
+
+    public void sendMail(Long memberId, EmailReqDto emailReqDto) {
+        mailClient.sendMail(memberId, emailReqDto);
 
-    public void sendMail(EmailReqDto emailReqDto) {
-        MimeMessage message = gmailClient.CreateMail(emailReqDto);
-        gmailClient.send(message);
     }
 }

src/main/java/com/Nunbody/domain/mail/controller/MailController.java

@@ -41,8 +41,8 @@ public ResponseEntity<SuccessResponse<?>> getHeader(@MemberId Long memberId, @Re
         return SuccessResponse.ok(mailListResponseDtoList);
     }
     @PostMapping("/send")
-    public ResponseEntity<SuccessResponse<?>> mailSend(@RequestBody EmailReqDto emailReqDto) {
-        emailService.sendMail(emailReqDto);
+    public ResponseEntity<SuccessResponse<?>> mailSend(@MemberId Long memberId, @RequestBody EmailReqDto emailReqDto) {
+        emailService.sendMail(memberId, emailReqDto);
         return SuccessResponse.ok(null);
     }
 

src/main/java/com/Nunbody/domain/member/service/MemberReader.java

@@ -0,0 +1,17 @@
+package com.Nunbody.domain.member.service;
+
+import com.Nunbody.domain.member.domain.Member;
+import com.Nunbody.domain.member.repository.MemberRepository;
+import com.Nunbody.global.error.ErrorCode;
+import com.Nunbody.global.error.exception.EntityNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class MemberReader {
+    private final MemberRepository memberRepository;
+    public Member getMemberById(Long memberId){
+        return memberRepository.findById(memberId).orElseThrow(() -> new EntityNotFoundException(ErrorCode.ENTITY_NOT_FOUND));
+    }
+}

src/main/java/com/Nunbody/external/MailClient.java

@@ -0,0 +1,77 @@
+package com.Nunbody.external;
+
+import com.Nunbody.domain.Mail.domain.PlatformType;
+import com.Nunbody.domain.Mail.dto.resquest.EmailReqDto;
+import com.Nunbody.domain.member.domain.Member;
+import com.Nunbody.domain.member.service.MemberReader;
+import com.Nunbody.global.common.EncoderDecoder;
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeMessage;
+import lombok.RequiredArgsConstructor;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.mail.javamail.JavaMailSenderImpl;
+import org.springframework.stereotype.Service;
+
+import java.util.Properties;
+
+@Service
+@RequiredArgsConstructor
+public class MailClient {
+    private final MemberReader memberReader;
+
+    public void sendMail(Long memberId, EmailReqDto emailReqDto) {
+        Member member = memberReader.getMemberById(memberId);
+        PlatformType platformType = PlatformType.getEnumPlatformTypeFromStringPlatformType(emailReqDto.platform());
+        JavaMailSender mailSender = createMailSender(member, platformType);
+        String senderMail = getSenderMail(member, platformType);
+
+        MimeMessage message = mailSender.createMimeMessage();
+        try {
+            message.setFrom(senderMail);
+            message.setRecipients(MimeMessage.RecipientType.TO, emailReqDto.mail());
+            message.setSubject(emailReqDto.header());
+            message.setText(emailReqDto.body(), "UTF-8", "html");
+
+            mailSender.send(message);
+        } catch (MessagingException e) {
+            throw new RuntimeException("Failed to create or send email message", e);
+        }
+    }
+
+    private JavaMailSender createMailSender(Member member, PlatformType platformType) {
+        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
+        switch (platformType) {
+            case NAVER:
+                mailSender.setHost("smtp.naver.com");
+                mailSender.setPort(587);
+                mailSender.setUsername(member.getNaverId());
+                mailSender.setPassword(EncoderDecoder.decodeFromBase64(member.getNaverPassword()));
+                break;
+            case GOOGLE:
+                mailSender.setHost("smtp.gmail.com");
+                mailSender.setPort(587);
+                mailSender.setUsername(member.getGmailId());
+                mailSender.setPassword(EncoderDecoder.decodeFromBase64(member.getGmailPassword()));
+                break;
+            default:
+                throw new IllegalArgumentException("Unsupported platform type: " + platformType);
+        }
+
+        Properties props = mailSender.getJavaMailProperties();
+        props.put("mail.transport.protocol", "smtp");
+        props.put("mail.smtp.auth", "true");
+        props.put("mail.smtp.starttls.enable", "true");
+        props.put("mail.debug", "true");
+        props.put("mail.smtp.timeout", "5000");
+
+        return mailSender;
+    }
+
+    private String getSenderMail(Member member, PlatformType platformType) {
+        return switch (platformType) {
+            case NAVER -> member.getNaverId();
+            case GOOGLE -> member.getGmailId();
+            default -> throw new IllegalArgumentException("Unsupported platform type: " + platformType);
+        };
+    }
+}

src/main/java/com/Nunbody/global/config/MailConfig.java

@@ -0,0 +1,36 @@
+package com.Nunbody.global.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MailConfig {
+
+    @Value("${spring.mail.gmail.host}")
+    private String gmailHost;
+
+    @Value("${spring.mail.gmail.port}")
+    private int gmailPort;
+
+    @Value("${spring.mail.naver.host}")
+    private String naverHost;
+
+    @Value("${spring.mail.naver.port}")
+    private int naverPort;
+
+    public String getGmailHost() {
+        return gmailHost;
+    }
+
+    public int getGmailPort() {
+        return gmailPort;
+    }
+
+    public String getNaverHost() {
+        return naverHost;
+    }
+
+    public int getNaverPort() {
+        return naverPort;
+    }
+}