# ⚠️ DEPRECATED — 2026-03-21
# 此文件是内部手工复制文件，已废弃，不再由任何 facade 引用。
# 请改用 spiderJobs.platforms.* 或 crawler_core 中的对应模块。
# 将在下一里程碑中删除。
#
"""
Boss直聘 Traceid 生成算法
复制自 spiderJobs/platforms/boss/sign.py — import 改为本地引用
"""

from __future__ import annotations

import random
import time


_CHARS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"


def _to_u32(n: int) -> int:
    return n & 0xFFFFFFFF


def _compute_checksum(uuid_str: str) -> str:
    r = 0
    for ch in uuid_str:
        r = ((r << 5) - r + ord(ch)) & 0xFFFFFFFF

    a = 0
    for i in range(len(uuid_str) - 1, -1, -1):
        a = ((a << 7) - a + ord(uuid_str[i]) * (i + 1)) & 0xFFFFFFFF

    n = 0
    mid = len(uuid_str) // 2
    for i in range(len(uuid_str)):
        n = ((n << 3) - n + ord(uuid_str[i]) * (abs(i - mid) + 1)) & 0xFFFFFFFF

    s = _to_u32(r ^ a)
    s = _to_u32(2654435761 * s)
    s = _to_u32(s ^ (s >> 16))
    s = _to_u32(2246822507 * s)
    s = _to_u32(s ^ (s >> 13))
    c1 = _CHARS[s % 62]

    h = _to_u32(a ^ n)
    h = _to_u32(3266489909 * h)
    h = _to_u32(h ^ (h >> 16))
    h = _to_u32(2654435761 * h)
    h = _to_u32(h ^ (h >> 13))
    c2 = _CHARS[h % 62]

    v = _to_u32(n ^ r)
    v = _to_u32(668265261 * v)
    v = _to_u32(v ^ (v >> 16))
    v = _to_u32(2246822507 * v)
    v = _to_u32(v ^ (v >> 13))
    c3 = _CHARS[v % 62]

    return f"{c1}{c2}{c3}"


def _generate_uuid() -> str:
    hex_ts = format(int(time.time() * 1000), "x").lower()
    hex_ts = hex_ts[-13:].zfill(13)
    rand_part = "".join(random.choice(_CHARS) for _ in range(6))
    return hex_ts + rand_part


class BossSign:
    def __init__(self, *, mpt: str = "", wt2: str = ""):
        self.mpt = mpt
        self.wt2 = wt2

    @staticmethod
    def generate_traceid(prefix: str = "M-W") -> str:
        uuid_str = _generate_uuid()
        checksum = _compute_checksum(uuid_str)
        return f"{prefix}{uuid_str}{checksum}"