{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "_slug": {
      "description": "Entry identifier (URL slug / filename without extension)",
      "type": "string"
    },
    "category": {
      "description": "Product category",
      "enum": [
        "electronics",
        "clothing",
        "books",
        "food",
        "other"
      ],
      "type": "string"
    },
    "created_at": {
      "format": "date-time",
      "readOnly": true,
      "type": "string"
    },
    "description": {
      "description": "Detailed product description",
      "maxLength": 5000,
      "type": "string"
    },
    "images": {
      "description": "Product image URLs (1–10)",
      "items": {
        "description": "Product image",
        "oneOf": [
          {
            "description": "Reference (slug) to collection 'img'",
            "type": "string"
          },
          {
            "properties": {
              "description": {
                "description": "Alt text / description",
                "type": "string"
              },
              "src": {
                "description": "Image URL",
                "type": "string"
              }
            },
            "required": [
              "src"
            ],
            "type": "object"
          }
        ]
      },
      "maxItems": 10,
      "minItems": 1,
      "type": "array"
    },
    "in_stock": {
      "default": true,
      "description": "Whether the product is in stock",
      "type": "boolean"
    },
    "price": {
      "description": "Price in EUR",
      "minimum": 0.0,
      "type": "number"
    },
    "rating": {
      "description": "Average customer rating (null if unrated)",
      "maximum": 5.0,
      "minimum": 0.0,
      "nullable": true,
      "type": "number"
    },
    "sku": {
      "description": "Stock Keeping Unit (e.g. EL-1234, BOOK-00042)",
      "pattern": "^[A-Z]{2,4}-\\d{3,6}$",
      "type": "string"
    },
    "title": {
      "description": "Product name",
      "maxLength": 200,
      "minLength": 1,
      "type": "string"
    }
  },
  "required": [
    "_slug",
    "title",
    "sku",
    "price",
    "category"
  ],
  "type": "object"
}