{
    "$schema": "http://json-schema.org/draft-07/schema",
    "$id": "https://immersive-web/webxr-input-profiles/registry/layout.schema.json",
    "type": "object",
    "description": "A layout",
    "additionalProperties": false,
    "required": [ "components", "selectComponentId" ],
    "properties": {
        "selectComponentId": { "$ref": "common.schema.json#/definitions/componentId" },
        "components": { 
            "description": "The collection of components in the layout",
            "type": "object",
            "minProperties": 1,
            "additionalProperties": false,
            "patternProperties": {
                "^[a-z0-9]+(-[a-z0-9]+)*$": {
                    "type": "object",
                    "required": [ "type" ],
                    "additionalProperties": false,
                    "properties": {
                        "type": {
                            "type": "string",
                            "enum": [ "trigger", "squeeze", "touchpad", "thumbstick", "button"]
                        },
                        "reserved": {
                            "type": "boolean"
                        }
                    }
                }
            }
        },
        "gamepad": { "#ref": "gamepad.schema.json" }
    }
}