[BE] 비밀번호 마이그레이션 추가

backend/src/main/java/kr/momo/controller/attendee/AttendeeController.java

@@ -50,4 +50,12 @@ public ResponseEntity<Void> logout(@PathVariable String uuid) {
     public MomoApiResponse<List<String>> findAttendeesOfMeeting(@PathVariable String uuid) {
         return new MomoApiResponse<>(attendeeService.findAll(uuid));
     }
+
+    /**
+     * TEMP: 비밀번호 마이그레이션 이후 삭제될 메서드입니다.
+     */
+    @PostMapping("/api/v1/attendee/update-password")
+    public MomoApiResponse<Integer> updatePassword() {
+        return new MomoApiResponse<>(attendeeService.updateAllPassword());
+    }
 }

backend/src/main/java/kr/momo/domain/attendee/Attendee.java

@@ -66,6 +66,10 @@ public boolean isNotHost() {
         return !isHost();
     }
 
+    public void updatePassword(String password) {
+        this.password = new AttendeePassword(password);
+    }
+
     public void verifyPassword(AttendeeRawPassword rawPassword, PasswordEncoder passwordEncoder) {
         password.verifyMatch(rawPassword, passwordEncoder);
     }

backend/src/main/java/kr/momo/service/attendee/AttendeeService.java

@@ -63,4 +63,23 @@ public List<String> findAll(String uuid) {
                 .map(Attendee::name)
                 .toList();
     }
+
+    /**
+     * TEMP: 비밀번호 마이그레이션 이후 삭제될 메서드입니다.
+     */
+    public Integer updateAllPassword() {
+        List<Attendee> attendees = attendeeRepository.findAll();
+        List<Attendee> rawAttendees = attendees.stream()
+                .filter(attendee -> attendee.getPassword().getPassword().length() < 15)
+                .toList();
+        rawAttendees.forEach(
+                attendee -> {
+                    String rawPassword = attendee.getPassword().getPassword();
+                    String encodedPassword = passwordEncoder.encode(rawPassword);
+                    attendee.updatePassword(encodedPassword);
+                }
+        );
+        attendeeRepository.saveAll(rawAttendees);
+        return rawAttendees.size();
+    }
 }