fix(media): 修正转码媒资 id 解析与存量分集补登记

fruitshorts-module-content/src/main/java/com/fruitshorts/content/service/EpisodeService.java

@@ -17,6 +17,7 @@ import com.fruitshorts.content.vo.EpisodeRespVO;
 import com.fruitshorts.content.vo.EpisodeSaveReqVO;
 import com.fruitshorts.media.service.EpisodeTranscodeBindingService;
 import com.fruitshorts.media.service.EpisodeTranscodeCompletionPort;
+import com.fruitshorts.media.service.EpisodeVideoSourcePort;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -31,7 +32,7 @@ import java.util.Objects;
 
 @Service
 @RequiredArgsConstructor
-public class EpisodeService implements EpisodeTranscodeCompletionPort {
+public class EpisodeService implements EpisodeTranscodeCompletionPort, EpisodeVideoSourcePort {
 
     private static final int DEFAULT_PAGE_INDEX = 1;
     private static final int DEFAULT_PAGE_SIZE = 100;
@@ -41,6 +42,36 @@ public class EpisodeService implements EpisodeTranscodeCompletionPort {
     private final DramaService dramaService;
     private final EpisodeTranscodeBindingService transcodeBindingService;
 
+    @Override
+    public java.util.Optional<EpisodeVideoSource> resolve(Long candidateId) {
+        if (candidateId == null || candidateId <= 0) {
+            return java.util.Optional.empty();
+        }
+        DramaEpisode episode = dramaEpisodeMapper.selectById(candidateId);
+        if (episode == null) {
+            episode = dramaEpisodeMapper.selectOne(Wrappers.<DramaEpisode>lambdaQuery()
+                    .eq(DramaEpisode::getVideoAssetId, candidateId)
+                    .last("limit 1"));
+        }
+        if (episode == null) {
+            return java.util.Optional.empty();
+        }
+        return java.util.Optional.of(new EpisodeVideoSource(
+                episode.getId(), episode.getDramaId(), episode.getVideoAssetId(),
+                episode.getVideoUrl(), episode.getDurationSec()));
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void link(Long episodeId, Long mediaAssetId) {
+        if (episodeId == null || episodeId <= 0 || mediaAssetId == null || mediaAssetId <= 0) {
+            return;
+        }
+        dramaEpisodeMapper.update(null, Wrappers.<DramaEpisode>lambdaUpdate()
+                .eq(DramaEpisode::getId, episodeId)
+                .set(DramaEpisode::getVideoAssetId, mediaAssetId));
+    }
+
     /** 后台：按短剧分页查询分集，status 在 SQL 层过滤；排序稳定（sort、ep_no）。 */
     public PageResult<EpisodeRespVO> pageByDrama(Long dramaId, String status,
                                                  Integer pageIndex, Integer pageSize) {