vendor_group_id = params_kw.get('vendor_group_id', '')
source_url = params_kw.get('source_url', '')
asset_type = params_kw.get('asset_type', '')
name = params_kw.get('name', '')

if not vendor_group_id or not source_url:
    return json.dumps({"status": "error", "data": {"message": "请选择认证组合并上传素材文件"}}, ensure_ascii=False)

# Validate media file type from path extension
import os
ext = os.path.splitext(source_url.split('?')[0])[1].lower() if source_url else ''
media_map = {
    '.jpg': 'Image', '.jpeg': 'Image', '.png': 'Image', '.gif': 'Image', '.bmp': 'Image', '.webp': 'Image', '.svg': 'Image',
    '.mp4': 'Video', '.avi': 'Video', '.mov': 'Video', '.wmv': 'Video', '.flv': 'Video', '.mkv': 'Video', '.webm': 'Video',
    '.mp3': 'Audio', '.wav': 'Audio', '.aac': 'Audio', '.flac': 'Audio', '.ogg': 'Audio', '.wma': 'Audio', '.m4a': 'Audio',
}
detected_type = media_map.get(ext, '')
if ext and not detected_type:
    return json.dumps({"status": "error", "data": {"message": f"不支持的文件类型: {ext}，请上传图片、音频或视频文件"}}, ensure_ascii=False)
if not asset_type and detected_type:
    asset_type = detected_type
if not asset_type:
    asset_type = 'Image'

# If source_url is base64 data or local path, convert to public URL
if source_url.startswith('data:') or (not source_url.startswith('http') and len(source_url) < 8000):
    source_url = await b64media2url(request, source_url)
    if not source_url:
        return json.dumps({"status": "error", "data": {"message": "素材文件转换失败"}}, ensure_ascii=False)

org_id = (await get_userorgid()) or '0'
user_id = (await get_user()) or ''

result = await rl_upload_user(org_id, vendor_group_id, source_url, asset_type, name, user_id)

if result.get('success'):
    return json.dumps({
        "status": "ok",
        "data": {
            "id": result.get('id', ''),
            "vendor_asset_id": result.get('vendor_asset_id', ''),
            "status": result.get('status', 'Processing'),
        }
    }, ensure_ascii=False)
else:
    return json.dumps({
        "status": "error",
        "data": {"message": result.get('message', '上传失败')}
    }, ensure_ascii=False)