[feat] 플레이리스트 목록 조회 필드 추가

src/main/java/com/mookive/mookive_backend/movieInPlaylist/domain/respository/MovieInPlaylistRepository.java

@@ -17,4 +17,6 @@ public interface MovieInPlaylistRepository extends JpaRepository<MovieInPlaylist
     boolean existsByPlaylistIdAndMovieId(Long playlistId, Long movieId);
 
     Optional<MovieInPlaylist> findTop1ByPlaylistIdOrderByCreatedAtDesc(Long playlistId);
+
+    int countByPlaylistId(Long playlistId);
 }

src/main/java/com/mookive/mookive_backend/movieInPlaylist/domain/service/MovieInPlaylistQueryService.java

@@ -31,4 +31,8 @@ public boolean existsByPlaylistIdAndMovieId(Long playlistId, Long movieId) {
     public Optional<MovieInPlaylist> findTop1ByPlaylistIdOrderByCreatedAtDesc(Long playlistId) {
         return movieInPlaylistRepository.findTop1ByPlaylistIdOrderByCreatedAtDesc(playlistId);
     }
+
+    public int countByPlaylistId(Long playlistId) {
+        return movieInPlaylistRepository.countByPlaylistId(playlistId);
+    }
 }

src/main/java/com/mookive/mookive_backend/playlist/application/dto/response/PlaylistResponse.java

@@ -12,12 +12,16 @@ public static class PlaylistGetResponse {
         private Long playlistId;
         private String poster;
         private String name;
+        private String title;
+        private int total;
 
         @Builder
-        public PlaylistGetResponse(Long playlistId, String poster, String name) {
+        public PlaylistGetResponse(Long playlistId, String poster, String name, String title, int total) {
             this.playlistId = playlistId;
             this.poster = poster;
             this.name = name;
+            this.title = title;
+            this.total = total;
         }
     }
 }

src/main/java/com/mookive/mookive_backend/playlist/application/mapper/PlaylistMapper.java

@@ -14,11 +14,13 @@ public static Playlist mapToPlaylist(User user, PlaylistRequest.PlaylistCreateRe
                 .build();
     }
 
-    public static PlaylistResponse.PlaylistGetResponse mapToPlaylistGetResponse(Playlist playlist, String poster) {
+    public static PlaylistResponse.PlaylistGetResponse mapToPlaylistGetResponse(Playlist playlist, String poster, String title, int total) {
         return PlaylistResponse.PlaylistGetResponse.builder()
                 .playlistId(playlist.getId())
                 .name(playlist.getName())
                 .poster(poster)
+                .title(title)
+                .total(total)
                 .build();
     }
 }

src/main/java/com/mookive/mookive_backend/playlist/application/service/PlaylistGetService.java

@@ -1,5 +1,6 @@
 package com.mookive.mookive_backend.playlist.application.service;
 
+import com.mookive.mookive_backend.movie.domain.entity.Movie;
 import com.mookive.mookive_backend.movieInPlaylist.domain.entity.MovieInPlaylist;
 import com.mookive.mookive_backend.movieInPlaylist.domain.service.MovieInPlaylistQueryService;
 import com.mookive.mookive_backend.playlist.application.dto.response.PlaylistResponse;
@@ -27,11 +28,16 @@ public List<PlaylistResponse.PlaylistGetResponse> getPlaylist(Long userId) {
         List<PlaylistResponse.PlaylistGetResponse> playlistGetRequestList = new ArrayList<>();
         for (Playlist playlist : playlists) {
             String poster = null;
+            String title = null;
             Long playlistId = playlist.getId();
-            Optional<MovieInPlaylist> optionalMovieInPlaylist = movieInPlaylistQueryService.findTop1ByPlaylistIdOrderByCreatedAtDesc(playlistId);
-            if(optionalMovieInPlaylist.isPresent())
-                poster = optionalMovieInPlaylist.get().getMovie().getPoster();
-            PlaylistResponse.PlaylistGetResponse playlistGetResponse = PlaylistMapper.mapToPlaylistGetResponse(playlist, poster);
+            Optional<MovieInPlaylist> movieInPlaylist = movieInPlaylistQueryService.findTop1ByPlaylistIdOrderByCreatedAtDesc(playlistId);
+            if(movieInPlaylist.isPresent()) {
+                Movie movie =  movieInPlaylist.get().getMovie();
+                poster = movie.getPoster();
+                title = movie.getTitle();
+            }
+            int total = movieInPlaylistQueryService.countByPlaylistId(playlistId) - 1;
+            PlaylistResponse.PlaylistGetResponse playlistGetResponse = PlaylistMapper.mapToPlaylistGetResponse(playlist, poster, title, total);
             playlistGetRequestList.add(playlistGetResponse);
         }
         return playlistGetRequestList;