# -*- coding: utf-8 -*-
"""B 站收藏夹写客户端（``sort``）。

收藏夹重排序是本项目**唯一**使用 ``bilibili.write`` 凭据的写操作，且频率极低。
加入收藏夹（``deal``）等写操作已移除，收藏夹由人工维护。

只应使用 ``bilibili.write`` 凭据构造。
"""

from __future__ import annotations

import urllib.parse
from typing import Any, Mapping

from .client import (
    BASE,
    BilibiliClient,
    BilibiliHTTPError,
    BilibiliProtocolError,
)


class BilibiliWriteClient(BilibiliClient):
    def post_form(
        self, url: str, data: Mapping[str, Any], *, referer: str | None = None
    ) -> dict[str, Any]:
        self.pacer.wait()
        headers = self._headers(auth=True, referer=referer)
        headers["content-type"] = "application/x-www-form-urlencoded"
        body = urllib.parse.urlencode(data).encode("utf-8")
        response = self.transport.request(
            "POST", url, headers, data=body, timeout=self.timeout
        )
        if response.status >= 400:
            raise BilibiliHTTPError(
                response.status, response.body.decode("utf-8", "replace")[:200]
            )
        payload = response.json()
        if not isinstance(payload, dict):
            raise BilibiliProtocolError("写接口响应顶层不是 JSON 对象")
        if payload.get("code") != 0:
            raise self._api_error(payload)
        return payload

    def sort(self, media_id: int, sort_spec: str) -> dict[str, Any]:
        return self.post_form(
            f"{BASE}/x/v3/fav/resource/sort",
            {
                "media_id": int(media_id),
                "sort": sort_spec,
                "csrf": self.csrf,
            },
            referer=(
                f"https://space.bilibili.com/{self.mid}/favlist"
                f"?fid={int(media_id)}&ftype=create"
            ),
        )