{
  "crubal": "2",
  "package": "commerce",
  "version": "2026-10-14",
  "id": "crubal.com/commerce",
  "owner": "crubal.com",
  "label": "Commerce",
  "licence": "CC-BY-4.0",
  "extends": [
    {
      "package": "crubal.com/product",
      "version": "2026-10-14"
    },
    {
      "package": "crubal.com/service",
      "version": "2026-10-14"
    }
  ],
  "prefixes": {
    "schema": "https://schema.org/",
    "product": "crubal.com/product",
    "service": "crubal.com/service"
  },
  "facets": [
    {
      "facet": "price",
      "type": "number",
      "same-as": [
        "schema:price"
      ],
      "unit": "currency"
    },
    {
      "facet": "compareAt",
      "type": "number",
      "unit": "currency"
    },
    {
      "facet": "cost",
      "type": "number",
      "unit": "currency"
    },
    {
      "facet": "sku",
      "type": "text",
      "same-as": [
        "schema:sku"
      ],
      "length": "80",
      "unique": true
    },
    {
      "facet": "stock",
      "type": "number"
    },
    {
      "facet": "offerStatus",
      "type": "choice",
      "values": [
        {
          "value": "draft"
        },
        {
          "value": "listed"
        },
        {
          "value": "reserved"
        },
        {
          "value": "sold"
        },
        {
          "value": "withdrawn"
        }
      ]
    },
    {
      "facet": "shippingWeight",
      "type": "number",
      "unit": "kg",
      "accepts": [
        "g",
        "lb",
        "oz"
      ]
    },
    {
      "facet": "shipsFrom",
      "type": "text"
    },
    {
      "facet": "taxCode",
      "type": "text"
    }
  ],
  "classes": [
    {
      "class": "Offer",
      "label": "Offer",
      "for": [
        "item",
        "service"
      ],
      "facets": [
        {
          "facet": "price",
          "level": "unit"
        },
        {
          "facet": "compareAt",
          "level": "unit"
        },
        {
          "facet": "cost",
          "level": "unit"
        },
        {
          "facet": "sku",
          "level": "unit"
        },
        {
          "facet": "stock",
          "level": "unit"
        },
        {
          "facet": "offerStatus",
          "required": true,
          "level": "unit"
        },
        {
          "facet": "shippingWeight",
          "section": "Shipping"
        },
        {
          "facet": "shipsFrom",
          "section": "Shipping"
        },
        {
          "facet": "taxCode",
          "section": "Shipping"
        }
      ]
    }
  ],
  "rules": [
    {
      "rule": "listedNeedsPrice",
      "for": "everywhere",
      "when": "offerStatus is listed",
      "then": "price has",
      "strength": "must",
      "because": "a listed offer needs a price"
    },
    {
      "rule": "costIsStaff",
      "for": "everywhere",
      "then": "cost shown to staff",
      "strength": "must"
    },
    {
      "rule": "soldHasNoStock",
      "for": "everywhere",
      "when": "offerStatus is sold",
      "then": "stock in 0..0",
      "strength": "should",
      "because": "a sold one-off has none left"
    }
  ]
}