{
  "$schema": "http://json-schema.org/draft-07/schema",
  "$id": "ComponentMetadataSchema",
  "description": "Schema of the placeholders descriptor",
  "type": "object",
  "required": [
    "template"
  ],
  "properties": {
    "template": {
      "type": "string"
    },
    "vars": {
      "type": "object",
      "patternProperties": {
        ".*": {
          "$ref": "#/definitions/placeholderVariable"
        }
      }
    }
  },
  "definitions": {
    "placeholderVariable": {
      "oneOf": [
        {
          "type": "object",
          "required": [
            "type",
            "value"
          ],
          "properties": {
            "type": {
              "type": "string",
              "enum": [
                "fullUrl",
                "relativeUrl",
                "localisation"
              ]
            },
            "value": {
              "type": "string"
            },
            "parameters": {
              "type": "object",
              "additionalProperties": {
                "type":  "string"
              }
            }
          }
        },
        {
          "type": "object",
          "required": [
            "type",
            "value"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "fact"
            },
            "value": {
              "type": "string"
            },
            "path": {
              "type": "string"
            }
          }
        }
      ]
    }
  }
}