from typing import Any, Dict, Optional


def resolver_location(store_config: Dict[str, Any], location_id: Any) -> Optional[Dict[str, Any]]:
    """Config (is_store/warehouse_code) para un location_id de Shopify, o None si no está mapeado."""
    return store_config["sap"]["locations"].get(str(location_id))


def es_tienda(store_config: Dict[str, Any], location_id: Any) -> bool:
    """
    True si este location_id es una tienda física (genera StockTransfer +
    Delivery además de la ITR); False si es un CD (solo ITR).
    """
    location = resolver_location(store_config, location_id)
    return bool(location and location.get("is_store"))


def construir_inventory_transfer_request(
    order: Dict[str, Any],
    fulfillment: Dict[str, Any],
    store_config: Dict[str, Any],
    warehouse_code: str,
    invoice: Dict[str, Any],
) -> Dict[str, Any]:
    """
    Arma el JSON para POST InventoryTransferRequests: una solicitud por cada
    fulfillment, moviendo stock desde la bodega real del location_id hacia
    la bodega virtual usada en el Invoice (default_warehouse_invoice). Usa
    los line_items propios del fulfillment (no los de toda la orden), ya
    que una orden puede tener varios fulfillments con distintos
    ítems/cantidades. CardCode/CardName se toman del Invoice; Comments lleva
    el "name" de Shopify para poder ubicarla fácil.
    """
    to_warehouse = store_config["sap"]["default_warehouse_invoice"]
    series = store_config["sap"]["numbering_series"]["INVENTORY_TRANSFER_REQUEST"]
    doc_date = order["created_at"][:10]

    document_lines = [
        {
            "ItemCode": item["sku"],
            "Quantity": item["quantity"],
            "FromWarehouseCode": warehouse_code,
            "WarehouseCode": to_warehouse,
        }
        for item in fulfillment.get("line_items", [])
        if item.get("sku")
    ]

    return {
        "CardCode": invoice["CardCode"],
        "CardName": invoice["CardName"],
        "Comments": order.get("name"),
        "DocDate": doc_date,
        "DueDate": doc_date,
        "Series": series,
        "FromWarehouse": warehouse_code,
        "ToWarehouse": to_warehouse,
        "U_ShopifyOrderId": order["id"],
        "U_ShopifyStore": store_config["store_code"],
        "StockTransferLines": document_lines,
    }