"""/api/order/get_shipping_fee 中"店铺标识"分桶逻辑的单元测试：

- 店铺标识优先取 tenpo_cd(与 other_shop_list 一致)，未提供时回退取 supplier
- 同 tenpo_cd(或同 supplier)视为同一家加盟店，只收一次 800 日元
"""
from __future__ import annotations

import pytest

from app.api.routes.scrape import order_get_shipping_fee
from app.models.scrape import OrderItem, OrderShippingFeeRequest


@pytest.mark.asyncio
async def test_official_only_uses_official_ladder() -> None:
    request = OrderShippingFeeRequest(item_list=[OrderItem(goods_id="1", goods_number=1, goods_price=800)])
    resp = await order_get_shipping_fee(request)
    assert resp.data.shipping_fee == 440
    assert resp.data.goods_amount == 800


@pytest.mark.asyncio
async def test_tenpo_cd_groups_same_franchise_store_once() -> None:
    request = OrderShippingFeeRequest(
        item_list=[
            OrderItem(goods_id="1", goods_number=1, goods_price=1000, tenpo_cd="400451"),
            OrderItem(goods_id="2", goods_number=1, goods_price=2000, tenpo_cd="400451", branch_number="0003"),
        ]
    )
    resp = await order_get_shipping_fee(request)
    assert resp.data.shipping_fee == 800  # 同一 tenpo_cd 只收一次加盟店运费
    assert resp.data.goods_amount == 3000


@pytest.mark.asyncio
async def test_different_tenpo_cd_charged_separately() -> None:
    request = OrderShippingFeeRequest(
        item_list=[
            OrderItem(goods_id="1", goods_number=1, goods_price=1000, tenpo_cd="400451"),
            OrderItem(goods_id="2", goods_number=1, goods_price=1000, tenpo_cd="400999"),
        ]
    )
    resp = await order_get_shipping_fee(request)
    assert resp.data.shipping_fee == 1600  # 两家不同加盟店各收 800


@pytest.mark.asyncio
async def test_tenpo_cd_takes_precedence_over_supplier() -> None:
    request = OrderShippingFeeRequest(
        item_list=[
            OrderItem(goods_id="1", goods_number=1, goods_price=1000, supplier="山口大学前店", tenpo_cd="400451"),
            OrderItem(goods_id="2", goods_number=1, goods_price=1000, supplier="其他名称", tenpo_cd="400451"),
        ]
    )
    resp = await order_get_shipping_fee(request)
    assert resp.data.shipping_fee == 800  # 尽管 supplier 文本不同，tenpo_cd 相同仍视为同一家


@pytest.mark.asyncio
async def test_falls_back_to_supplier_when_tenpo_cd_missing() -> None:
    request = OrderShippingFeeRequest(
        item_list=[
            OrderItem(goods_id="1", goods_number=1, goods_price=1000, supplier="老加盟店"),
            OrderItem(goods_id="2", goods_number=1, goods_price=1000, supplier="老加盟店"),
        ]
    )
    resp = await order_get_shipping_fee(request)
    assert resp.data.shipping_fee == 800  # 无 tenpo_cd 时按 supplier 分桶，保持向后兼容