"""失败卡展示原因派生(repositories.comparison._derive_fail_display)单元测试。

用例取自线上真实 failed 记录(platform_results 形态),覆盖:
  - information 具体 → 直出
  - information 笼统 + platform_results 有干净业务结局 → 救援出该原因(id 3030/2964 型)
  - information 笼统 + 仅系统失败(搜索失败等黑话)→ None(端侧品牌兜底,id 3027 型)
  - store_closed / no_delivery 被 pricebot 漏成 status=failed → 按 reason 关键字补判
  - 打烊类脏店名 blob → 统一简短模板
  - platform_results 为空 / 非对象 → None
"""
from __future__ import annotations

from app.repositories import comparison as crud


def test_specific_information_passthrough() -> None:
    # information 本身具体(未达起送/找不到菜等)→ 直出,不看 platform_results
    assert (
        crud._derive_fail_display("淘宝闪购未达起送门槛，可加菜凑单后下单", {})
        == "淘宝闪购未达起送门槛，可加菜凑单后下单"
    )
    assert crud._derive_fail_display("未识别到商品", {}) == "未识别到商品"


def test_generic_info_rescued_from_items_not_found() -> None:
    # id 3030 型:美团系统失败 + 京东 items_not_found,记录级 information 笼统 → 救出京东那条
    pr = {
        "eleme": {"is_source": True, "status": "source", "price": 23.04},
        "meituan_waimai": {
            "is_source": False, "status": "failed",
            "reason": "搜索店铺失败, 无法跳转到搜索页",
        },
        "jd_waimai_standalone": {
            "is_source": False, "status": "items_not_found",
            "reason": "京东外卖此店内未找到这些菜品",
        },
    }
    assert (
        crud._derive_fail_display("比价过程出错，请稍后重试", pr)
        == "京东外卖此店内未找到这些菜品"
    )


def test_generic_info_rescued_from_store_not_found() -> None:
    # id 2964 型:美团系统失败 + 京东 store_not_found → 救出京东相似店铺文案
    pr = {
        "taobao_flash": {"is_source": True, "status": "source", "price": 127.98},
        "meituan": {
            "is_source": False, "status": "failed",
            "reason": "比价过程出错，请稍后重试",
        },
        "jd_waimai": {
            "is_source": False, "status": "store_not_found",
            "reason": "未在京东找到「黔珍味·贵州牛肉蘸水健康菜 (望京店)」相似店铺",
        },
    }
    assert (
        crud._derive_fail_display("比价过程出错，请稍后重试", pr)
        == "未在京东找到「黔珍味·贵州牛肉蘸水健康菜 (望京店)」相似店铺"
    )


def test_generic_info_pure_system_failure_returns_none() -> None:
    # id 3027 型:唯一目标平台是自动化黑话失败 → 不给用户看 → None(端侧品牌兜底)
    pr = {
        "eleme": {"is_source": True, "status": "source", "price": 18.83},
        "meituan_waimai": {
            "is_source": False, "status": "failed",
            "reason": "搜索店铺失败, 无法跳转到搜索页",
        },
    }
    assert crud._derive_fail_display("比价过程出错，请稍后重试", pr) is None


def test_store_closed_leaked_to_failed_is_rescued_and_cleaned() -> None:
    # 打烊被漏成 status=failed;reason 常带脏店名 blob → 统一简短模板
    pr = {
        "jd_waimai": {"is_source": True, "status": "source", "price": 25},
        "taobao_flash": {
            "is_source": False, "status": "failed",
            "reason": "淘宝闪购「沙胆彪炭炉牛杂煲(...)，蜂鸟准时达，月售300+，起送¥20」本店已休息,无法比价",
        },
    }
    assert crud._derive_fail_display("比价过程出错，请稍后重试", pr) == "门店休息中，无法比价"

    pr2 = {
        "taobao_flash": {"is_source": True, "status": "source", "price": 31.83},
        "meituan": {
            "is_source": False, "status": "failed",
            "reason": "美团「奈雪的茶（北京王府井奥莱·香江」门店已打烊,无法比价",
        },
    }
    assert crud._derive_fail_display("比价出错", pr2) == "门店已打烊，无法比价"


def test_no_delivery_leaked_to_failed_is_rescued() -> None:
    # 单点不配送被漏成 status=failed;reason 本身干净 → 直接用
    reason = "京东外卖该商家所选商品单点不配送，无法进入结算比价"
    pr = {
        "taobao_flash": {"is_source": True, "status": "source", "price": 20.1},
        "jd_waimai_standalone": {
            "is_source": False, "status": "failed", "reason": reason,
        },
    }
    assert crud._derive_fail_display("比价过程出错，请稍后重试", pr) == reason


def test_empty_or_missing_platform_results_returns_none() -> None:
    # 「比价出错」+ 空 {} / None / 非对象:引擎早夭,无可展示原因 → None
    assert crud._derive_fail_display("比价出错", {}) is None
    assert crud._derive_fail_display("比价过程出错，请稍后重试", None) is None
    assert crud._derive_fail_display("比价出错", []) is None  # 老 array 形态,防御


def test_clean_status_wins_over_priority_order() -> None:
    # 多个业务结局同现时按 _BIZ_STATUS_PRIORITY 选(below_minimum 优先于 store_not_found)
    pr = {
        "src": {"is_source": True, "status": "source", "price": 30},
        "a": {"is_source": False, "status": "store_not_found", "reason": "未找到店铺A"},
        "b": {"is_source": False, "status": "below_minimum", "reason": "B未达起送门槛"},
    }
    assert crud._derive_fail_display("比价过程出错，请稍后重试", pr) == "B未达起送门槛"