{
  "title": "Volkswagen Vehicle Configuration Structure",
  "description": "Field-level documentation for the VW OKAPI vehicle configuration model.",
  "type": "object",
  "fields": [
    {
      "name": "typeId",
      "type": "string (UUID)",
      "required": true,
      "description": "Base vehicle type UUID identifying the trim level and engine variant."
    },
    {
      "name": "countryCode",
      "type": "string",
      "required": true,
      "description": "ISO 3166-2 market code (AT, DE, GB, US, etc.)."
    },
    {
      "name": "configId",
      "type": "string",
      "required": false,
      "description": "Session ID for resuming a saved in-progress configuration."
    },
    {
      "name": "selectedOptions",
      "type": "array<string (UUID)>",
      "required": false,
      "description": "UUIDs of selected options: exterior color, interior, wheels, radio, packages."
    },
    {
      "name": "buildable",
      "type": "boolean",
      "required": false,
      "description": "Whether the selected combination is buildable."
    },
    {
      "name": "totalPrice",
      "type": "Price",
      "required": false,
      "description": "Total configuration price.",
      "fields": [
        {"name": "amount", "type": "number", "description": "Price value."},
        {"name": "currency", "type": "string", "description": "ISO 4217 code (EUR, GBP, etc.)."}
      ]
    },
    {
      "name": "conflicts",
      "type": "array<Conflict>",
      "required": false,
      "description": "List of option conflicts if configuration is not buildable.",
      "fields": [
        {"name": "optionId", "type": "string", "description": "UUID of the conflicting option."},
        {"name": "reason", "type": "string", "description": "Explanation of the conflict."}
      ]
    }
  ]
}