import os, sys, json
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "backend"))
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "airshelf.settings.development")
import django; django.setup()
from apps.ai.models import AITask

for tt in ["product_image", "script_generation", "video_segment", "storyboard", "voiceover"]:
    t = AITask.objects.filter(task_type=tt, status="succeeded").exclude(response_payload={}).first()
    print("=" * 50, tt)
    if not t:
        print("  (无样本)"); continue
    rp = t.response_payload if isinstance(t.response_payload, dict) else {}
    usage = rp.get("usage")
    print("  usage =", json.dumps(usage, ensure_ascii=False))
    # 顶层除大字段外的 keys
    print("  payload keys =", [k for k in rp.keys()])