"""TAF 结构体解析韧性：尾部未建模字段（服务端新增/ZERO）与通用响应回落。

回归来源（2026-10-15 真机）：`checkUserBindGameAccount` 响应结构尾部多了 tag6
（ZERO 类型），旧解析直接抛 "期望 STRUCT_END, 实际 0x0c"，导致整个 RPC 返回 None、
工作台「查询角色」永远失败。修法：按 TAF 语义跳过未建模的尾部字段。
"""

from core.huya.activity_structs import CheckUserBindGameAccountResp
from core.huya.shop_structs import ShopRawRsp
from core.huya.taf_protocol import TafInputStream, TafOutputStream, TafType

# 真机响应（checkUserBindGameAccount，UID 1199665170519，bActId 9271）
BIND_RESP_HEX = (
    "0a0100c816002a0001100120013a060016002602717136004612e6b3aae6958fe6849fe"
    "79a84e59b9ee5bf86560066000b4a06001612e6b3aae99ba8e585a8e698afe8b08ee8a8"
    "802604e6898b51360be88bb9e69e9c28694f53294600560066000b526a2595806c0b36"
    "0ce5928ce5b9b3e7b2bee88bb1460050070b"
)


def test_bind_response_with_zero_tail_field_parses():
    stream = TafInputStream(bytes.fromhex(BIND_RESP_HEX))
    tag, dtype = stream.read_head()
    assert (tag, dtype) == (0, TafType.STRUCT_BEGIN)

    resp = CheckUserBindGameAccountResp()
    resp.read_from(stream)

    assert resp.status == 200
    assert resp.gameName == "和平精英"
    assert resp.accountData.isBindAcount == 1
    assert resp.accountData.isBindRole == 1
    assert resp.accountData.gameAccount.nick == "泪敏感的回忆"
    assert resp.accountData.gameRole.roleName == "泪雨全是谎言"
    assert resp.accountData.gameRole.areaName == "手Q"
    assert resp.accountData.gameRole.platName == "苹果(iOS)"

    # 外层结构正常收尾（内层 tag6=ZERO 已由 read_struct 跳过）
    _end_tag, end_type = stream.read_head()
    assert end_type == TafType.STRUCT_END


def test_skip_to_struct_end_skips_zero_field():
    output = TafOutputStream()
    output.write_struct_begin(0)
    output.write_int32(0, 1)
    output.write_int32(6, 0)  # ZERO 类型（0x6c）
    output.write_struct_end()

    stream = TafInputStream(output.get_bytes())
    stream.read_head()  # STRUCT_BEGIN
    assert stream.read_int32(0) == 1
    assert stream.skip_to_struct_end() == 1
    _tag, dtype = stream.read_head()
    assert dtype == TafType.STRUCT_END


def test_shop_raw_rsp_from_payload_flat_and_nested():
    flat = ShopRawRsp.from_payload({"tag0": 200, "tag1": "success"})
    assert (flat.code, flat.message) == (200, "success")

    nested = ShopRawRsp.from_payload({"tag0": {"tag0": 200, "tag1": "成功"}})
    assert (nested.code, nested.message) == (200, "成功")
    assert ShopRawRsp.from_payload(None).code == 0