"""抖音视频/图文解析编排层

链路（2026-10 起，免浏览器）：短链/全链接 → `douyin_web.fetch_douyin_web`
（短链重定向、签名请求 web detail 接口、最高码率/最高画质下载都在该模块内）。
旧链路（iesdouyin SSR 静态解析 + playwright 浏览器拦截）已废弃，
详见 services/fetchers/douyin_web.py 顶部说明。
"""

from pathlib import Path
from typing import Optional, Union

from nonebot import logger

from ..services.fetchers.douyin_web import fetch_douyin_web
from ..utils import get_data_dir, parse_netscape_cookies
from ..policy import Policy
from .sender import PendingMedia, _as_paths


async def parse_douyin(
    url: str,
) -> tuple[Optional[str], Optional[Union[Path, list[Path]]], bool]:
    """解析抖音链接（短链 / 全链接），返回 (title, file_paths, is_image_post)"""
    try:
        cookies_path = get_data_dir() / "cookies.txt"
        cookies = parse_netscape_cookies(cookies_path)
        return await fetch_douyin_web(url, cookies)
    except Exception:
        logger.exception(f"获取直链失败 {url}")
    return None, None, False


async def process_douyin_res(
    title: str,
    file_paths: Union[Path, list[Path]],
    is_private: bool,
    image_post: bool,
    policy: Policy | None = None,
    platform: str | None = None,
) -> tuple[Optional[PendingMedia], Optional[str]]:
    """下载已完成 → 打包为待发送媒体（不上传、不发送、不清理）

    多级发送（temp 本地 → S3 链接 → 回退本地）与群文件上传由
    send_pending_media 统一按 policy 处理；platform 用于群文件限定平台。
    """
    if not file_paths:
        return None, None
    return (
        PendingMedia(
            files=_as_paths(file_paths),
            image_post=image_post,
            is_private=is_private,
            policy=policy,
            platform=platform,
            title=title,
        ),
        None,
    )