完善视频复刻

core/backend/apps/ai/tasks.py

@@ -78,12 +78,16 @@ def poll_free_video_task(self, task_id: str, attempt: int = 0) -> str:
     与前端主动 poll 并存不双扣。轮询本身出错不重试(max_retries=0),下一次自重排继续。"""
     from apps.ai.free_video import finalize_free_video
     from apps.ai.models import AITask
+    from apps.ai.video_replace import advance_video_replace, is_video_replace_task
 
     task = AITask.objects.select_related("model_config", "model_config__provider", "team").filter(id=task_id).first()
     if task is None:
         return task_id
     try:
-        task = finalize_free_video(task=task)
+        if is_video_replace_task(task) and task.status == AITask.Status.CREATED:
+            task = advance_video_replace(task)
+        else:
+            task = finalize_free_video(task=task)
     except Exception:  # noqa: BLE001 — 单次轮询失败(网络抖动等)不终结任务,等下一轮
         import logging
 
@@ -93,7 +97,9 @@ def poll_free_video_task(self, task_id: str, attempt: int = 0) -> str:
 
     if getattr(dj_settings, "CELERY_TASK_ALWAYS_EAGER", False):
         return task_id
-    if task.status in (AITask.Status.SUBMITTED, AITask.Status.POLLING) and attempt < 60:
+    if task.status == AITask.Status.CREATED and attempt < 60:
+        poll_free_video_task.apply_async(args=[task_id, attempt + 1], countdown=8 if attempt < 12 else 30)
+    elif task.status in (AITask.Status.SUBMITTED, AITask.Status.POLLING) and attempt < 60:
         poll_free_video_task.apply_async(args=[task_id, attempt + 1], countdown=30)
     return task_id