{
  "$id": "passage-metadata.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$ref": "metadata.schema.json",
  "additionalProperties": false,
  "allOf": [
    {
      "if": { "properties": { "key": { "const": "meta:Copyright" } } },
      "then": {
        "properties": {
          "value": {
            "type": "array",
            "minItems": 1,
            "maxItems": 1,
            "items": {
              "type": "string",
              "enum": [
                "© Edgenuity Inc.",
                "© Imagine Learning LLC",
                "© Illustrative Mathematics"
              ]
            }
          }
        }
      }
    },
    {
      "if": { "properties": { "key": { "const": "meta:Product" } } },
      "then": {
        "properties": {
          "value": {
            "type": "array",
            "minItems": 1,
            "maxItems": 1,
            "items": {
              "type": "string",
              "enum": [
                "MPNG",
                "EdgeEX",
                "Project Link",
                "ImaginePlus Math",
                "Imagine Language and Literacy"
              ]
            }
          }
        }
      }
    }
  ],
  "properties": {
    "key": {
      "type": "string",
      "enum": [
        "meta:Product",
        "meta:Copyright"
      ]
    },
    "value": {}
  },
  "required": [ "key", "value" ],
  "title": "Passage Metadata",
  "type": "object"
}