"""发布：组装 ImportProductsV3 items[0] + 必填校验 + 轮询回填。"""
from __future__ import annotations

from models import Product


def _fmt(v) -> str:
    if v is None:
        return ""
    return str(v)


def validate_ready(product: Product) -> list[str]:
    """返回缺失/非法必填项的中文提示列表；空列表表示可发布。"""
    missing: list[str] = []
    if not product.offer_id.strip():
        missing.append("货号 offer_id")
    if not product.name.strip():
        missing.append("商品名 name")
    if not product.description.strip():
        missing.append("描述 description")
    if not product.description_category_id:
        missing.append("类目 description_category_id")
    if product.price is None or product.price <= 0:
        missing.append("售价 price")
    if not product.weight or product.weight <= 0:
        missing.append("重量 weight")
    for label, val in (("长 depth", product.depth), ("宽 width", product.width), ("高 height", product.height)):
        if not val or val <= 0:
            missing.append(label)
    if not product.images:
        missing.append("主图 images（至少 1 张）")
    elif any(u and u.startswith("http://") for u in product.images):
        missing.append("图片链接必须使用 https（Ozon 不接受 http 直链）")
    return missing


def _with_model_name(product: Product) -> list:
    """把 raw.model_name 自动注入为 attribute 9048（型号名称），用于多变体合并。"""
    attrs = list(product.attributes or [])
    model_name = (product.raw or {}).get("model_name") if product.raw else None
    if not model_name:
        return attrs
    # 已手动映射 9048 就不重复添加
    for a in attrs:
        if isinstance(a, dict) and a.get("id") == 9048:
            return attrs
    attrs.append({"complex_id": 0, "id": 9048, "values": [{"value": model_name}]})
    return attrs


def build_import_item(product: Product) -> dict:
    item: dict = {
        "offer_id": product.offer_id,
        "name": product.name,
        "description": product.description,
        "description_category_id": product.description_category_id,
        "price": _fmt(product.price),
        "old_price": _fmt(product.old_price),
        "currency_code": product.currency_code or "CNY",
        "vat": product.vat or "0",
        "depth": product.depth,
        "width": product.width,
        "height": product.height,
        "dimension_unit": product.dimension_unit or "mm",
        "weight": product.weight,
        "weight_unit": product.weight_unit or "g",
        "images": product.images or [],
        "primary_image": product.primary_image or "",
        "images360": product.images360 or [],
        "color_image": product.color_image or "",
        "attributes": _with_model_name(product),
        "complex_attributes": product.complex_attributes or [],
    }
    if product.type_id:
        item["type_id"] = product.type_id
    if product.barcode:
        item["barcode"] = product.barcode
    return item