{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "https://example.com/product.schema.json",
    "title": "Assets",
    "description": "A list of downloadable assets for Speed Dreams",
    "type": "object",
    "definitions": {
        "url": {
            "type": "string",
            "pattern": "^(http(s)*:\\/\\/)[-a-zA-Z0-9@:%._\\+~#=]{2,256}(\\.[a-z]{2,6})*\\b([-a-zA-Z0-9@:%_\\+.~#?&//=]*)$"
        },
        "directory": {
            "type": "string",
            "pattern": "^[aA-zZ|\\-|_|0-9]+$"
        },
        "number": {
            "type": "string",
            "pattern": "^\\d+$"
        },
        "asset": {
            "type": "object",
            "required": [
                "name",
                "author",
                "category",
                "license",
                "url",
                "hashtype",
                "hash",
                "size",
                "thumbnail",
                "directory",
                "revision"
            ],
            "properties": {
                "name": {
                    "type": "string"
                },
                "author": {
                    "type": "string"
                },
                "category": {
                    "$ref": "#/definitions/directory"
                },
                "url": {
                    "$ref": "#/definitions/url"
                },
                "license": {
                    "type": "string"
                },
                "hashtype": {
                    "type": "string",
                    "enum": [
                        "sha256"
                    ]
                },
                "hash": {
                    "type": "string",
                    "pattern": "^[aA-fF|0-9]+$"
                },
                "size": {
                    "$ref": "#/definitions/number"
                },
                "thumbnail": {
                    "$ref": "#/definitions/url"
                },
                "directory": {
                    "$ref": "#/definitions/directory"
                },
                "revision": {
                    "$ref": "#/definitions/number"
                }
            }
        },
        "assets": {
            "type": "array",
            "items": {
                "$ref": "#/definitions/asset"
            }
        }
    },
    "properties": {
        "cars": {
            "$ref": "#/definitions/assets"
        },
        "tracks": {
            "$ref": "#/definitions/assets"
        },
        "drivers": {
            "$ref": "#/definitions/assets"
        }
    }
}