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cmroubao/erp-connector/src/shunyunbaoerp/normalizer.py
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5.4 KiB
Python

"""把 ERP 原始对象缩减为下游允许保存的货运字段。"""
from __future__ import annotations
from collections.abc import Mapping
from typing import Any
from .errors import ERPProtocolError
def normalize_freight_result(result: Mapping[str, Any]) -> dict[str, Any]:
records = result.get("records")
if not isinstance(records, list):
raise ERPProtocolError("货运查询结果缺少 records 数组")
orders: list[dict[str, Any]] = []
seen_orders: dict[str, dict[str, Any]] = {}
for record in records:
if not isinstance(record, Mapping):
raise ERPProtocolError("货运查询结果包含非对象记录")
stock = record.get("stock")
detail = record.get("detail")
if not isinstance(stock, Mapping) or not isinstance(detail, Mapping):
raise ERPProtocolError("货运记录缺少 stock 或 detail 对象")
stock_id = _external_id(stock.get("id"), "货运单")
detail_id = _external_id(detail.get("id"), "货运详情")
if stock_id != detail_id:
raise ERPProtocolError("货运列表和详情身份不一致")
raw_items = detail.get("details")
if not isinstance(raw_items, list):
raise ERPProtocolError("货运详情缺少 details 数组")
item_by_id: dict[str, dict[str, Any]] = {}
for raw_item in raw_items:
if not isinstance(raw_item, Mapping):
raise ERPProtocolError("货运商品明细包含非对象元素")
item = _normalize_item(raw_item)
existing = item_by_id.get(item["external_item_id"])
if existing is not None and existing != item:
raise ERPProtocolError("货运商品明细存在冲突的重复身份")
item_by_id[item["external_item_id"]] = item
order = {
"external_stock_id": stock_id,
"source_code": _text(stock.get("code")),
"platform_order_no": _optional_text(stock.get("orderCode")),
"shop_name": _optional_text(
detail.get("shopName")
if _text(detail.get("shopName"))
else stock.get("shopName")
),
"source_created_at": _optional_text(
detail.get("created")
if _text(detail.get("created"))
else stock.get("created")
),
"order_status": _optional_scalar(
stock.get("orderStatus")
if stock.get("orderStatus") is not None
else detail.get("status")
),
"purchase_status": _optional_scalar(stock.get("purchaseStatus")),
"is_canceled": _optional_bool(stock.get("isCancel")),
"items": sorted(
item_by_id.values(),
key=lambda value: _identity_sort_key(
value["external_item_id"]
),
),
}
existing_order = seen_orders.get(stock_id)
if existing_order is not None and existing_order != order:
raise ERPProtocolError("货运查询结果存在冲突的重复货运单")
seen_orders[stock_id] = order
orders.extend(
sorted(
seen_orders.values(),
key=lambda value: _identity_sort_key(
value["external_stock_id"]
),
)
)
return {
"schema_version": 1,
"query": {"mode": "ORDER_NUMBER"},
"orders": orders,
}
def _normalize_item(item: Mapping[str, Any]) -> dict[str, Any]:
title = _text(item.get("productTitle"))
if not title:
title = _text(item.get("detailProductName"))
sku = _text(item.get("sku"))
if not sku:
sku = _text(item.get("variationSku"))
return {
"external_item_id": _external_id(item.get("id"), "货运商品"),
"title": title,
"product_spec": _text(item.get("productSpec")),
"sku": sku,
"quantity": _positive_int_or_none(item.get("productQty")),
"product_thumb_ref": _optional_scalar(item.get("productThumb")),
"purchase_status": _optional_scalar(item.get("purchaseStatus")),
}
def _external_id(value: Any, label: str) -> str:
if isinstance(value, bool):
raise ERPProtocolError(f"{label}外部身份无效")
try:
normalized = int(value)
except (TypeError, ValueError) as exc:
raise ERPProtocolError(f"{label}外部身份无效") from exc
if normalized <= 0:
raise ERPProtocolError(f"{label}外部身份无效")
return str(normalized)
def _positive_int_or_none(value: Any) -> int | None:
if isinstance(value, bool):
return None
try:
normalized = int(value)
except (TypeError, ValueError):
return None
return normalized if normalized > 0 else None
def _text(value: Any) -> str:
return value.strip() if isinstance(value, str) else ""
def _optional_text(value: Any) -> str | None:
normalized = _text(value)
return normalized or None
def _optional_scalar(value: Any) -> str | None:
if value is None or isinstance(value, (dict, list, tuple, set)):
return None
normalized = str(value).strip()
return normalized or None
def _optional_bool(value: Any) -> bool | None:
if isinstance(value, bool):
return value
if value in (0, "0"):
return False
if value in (1, "1"):
return True
return None
def _identity_sort_key(value: str) -> tuple[int, str]:
return (int(value), value)