"""集成测试共用工厂：客户 → 业务 → 明细的最小造数链。

回款/发货/业务三个测试文件此前各持一份逐字相同的工厂（口径漂移已经
发生：同一 _customer 三份、payload 细节靠复制维持），收口后「t_ 前缀、
默认明细行、业务日期取今日」单点维护；conftest 兜底清理按 t_ 前缀与
YW/SH/HK 编号前缀覆盖本模块全部造数。
"""

import uuid
from datetime import date

from fastapi.testclient import TestClient

_CUSTOMERS = "/api/v1/base/customers"
_BUSINESSES = "/api/v1/business/businesses"


def customer(client: TestClient, headers: dict) -> dict:
    """建一名 t_ 前缀测试客户（业务的必选引用）。"""
    resp = client.post(
        _CUSTOMERS,
        json={
            "company_name": f"t_公司_{uuid.uuid4().hex[:8]}",
            "owner_name": "张老板",
            "customer_type": "personal",
        },
        headers=headers,
    )
    assert resp.status_code == 200, resp.text
    return resp.json()["data"]


def business_item(**overrides: object) -> dict:
    """业务明细行入参（默认：数量 100 × 单价 100.00 = 销售额 10000）。"""
    body: dict = {
        "product_name": f"t_产品_{uuid.uuid4().hex[:8]}",
        "product_category": "municipal_water",
        "quantity": "100",
        "sale_price": "100.00",
    }
    body.update(overrides)
    return body


def business_payload(customer_id: int, **overrides: object) -> dict:
    body: dict = {
        "customer_id": customer_id,
        "business_date": str(date.today()),
        "items": [business_item()],
    }
    body.update(overrides)
    return body


def create_business(client: TestClient, headers: dict) -> dict:
    """建一名 t_ 客户并挂一笔默认业务（发货/回款须先有业务）。"""
    cust = customer(client, headers)
    resp = client.post(_BUSINESSES, json=business_payload(cust["id"]), headers=headers)
    assert resp.status_code == 200, resp.text
    return resp.json()["data"]