"""通用平台视频解析编排层 — B站 / YouTube / Twitter 等"""

from typing import Optional

from nonebot import logger
from nonebot_plugin_alconna import UniMessage

from ..policy import Policy
from ..services.fetchers.video_downloader import download_video
from .sender import PendingMedia, _as_paths


async def handle_universal(
    url: str,
    is_private: bool,
    policy: Policy | None = None,
    platform: str | None = None,
) -> tuple[Optional[PendingMedia], Optional[str]]:
    """
    下载通用平台视频 → 打包待发送媒体（上传/发送由 sender 按 policy 多级处理）

    Returns:
        (PendingMedia, public_url) — None 表示下载失败
    """
    video_file, title = await download_video(url)
    if not video_file:
        await UniMessage.text("视频下载失败。").send()
        return None, None

    logger.info(f"文件路径：{video_file}")

    return (
        PendingMedia(
            files=_as_paths(video_file),
            image_post=False,
            is_private=is_private,
            policy=policy,
            platform=platform,
            title=title,
        ),
        None,
    )