"""RW-018 研判的两个口径缺陷（docs/25 P2）。

1. **列表级无条件放行**：`_assess_list_rule` 收到 `item` 却完全不看它，对 RW-018
   一律返回"可考虑放行"，连理由文本都是硬编码的"现有摘要显示交易来自有效定投工单"。
   于是渠道不匹配、或证据里根本没有工单信息的预警，在列表层就被标成可放行 ——
   而列表正是风控专员最先看到的一屏。详情层另有判断，但那要等人点进去。

2. **详情级与扫描侧口径不一致**：扫描按 `work_order.channel in {"定投", "自动定投"}`
   生成 RW-018 预警（`risk_scan_service.py:294`），详情级却只认 `"定投"`。于是
   "自动定投"的预警会出现"扫描认为有效、详情认为未确认"的自相矛盾。

两条现在共用 `DIRECT_INVESTMENT_CHANNELS`，改这份常量即同时影响两侧。
"""

from typing import Any

from app.service.risk_judgement_service import (
    DIRECT_INVESTMENT_CHANNELS,
    VERDICT_RELEASE,
    _assess_list_rule,
    _assess_rw018,
)


def _item(**snapshot: Any) -> dict[str, Any]:
    return {"alert_no": "ALTEST", "evidence_snapshot": snapshot}


def test_channels_cover_what_the_scanner_accepts() -> None:
    """常量必须覆盖扫描侧接受的全部渠道，否则又会两侧打架。"""
    assert DIRECT_INVESTMENT_CHANNELS == {"定投", "自动定投"}


def test_list_level_does_not_release_without_evidence() -> None:
    """证据里没有渠道信息时不能放行 —— 这正是原先无条件放行的地方。"""
    result = _assess_list_rule("RW-018", _item())

    assert VERDICT_RELEASE not in str(result)


def test_list_level_does_not_release_for_an_unrelated_channel() -> None:
    result = _assess_list_rule("RW-018", _item(channel="柜台"))

    assert VERDICT_RELEASE not in str(result)


def test_list_level_releases_for_every_direct_investment_channel() -> None:
    for channel in sorted(DIRECT_INVESTMENT_CHANNELS):
        result = _assess_list_rule("RW-018", _item(channel=channel))

        assert VERDICT_RELEASE in str(result), f"{channel} 应当判定为可放行"


def test_detail_level_accepts_the_same_channels_as_the_scanner() -> None:
    """详情级与扫描侧同口径 —— 原先详情只认"定投"，"自动定投"会被判成未确认。"""
    for channel in sorted(DIRECT_INVESTMENT_CHANNELS):
        result = _assess_rw018({"work_order": {"channel": channel}})

        assert VERDICT_RELEASE in str(result), f"{channel} 在详情级也应判为可放行"


def test_detail_level_rejects_a_channel_the_scanner_would_not_use() -> None:
    result = _assess_rw018({"work_order": {"channel": "柜台"}})

    assert VERDICT_RELEASE not in str(result)