// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This file is a fork of ./metadata.mojom. The original file is in-use by the
// down-stream clank repositories. The fork was created so that changes can be
// made here iteratively without breaking clank. Once this file has become
// fairly stable, the intent is to merge it back into the original with as few
// changes as possible.

module schema_org.improved.mojom;

import "mojo/public/mojom/base/time.mojom";
import "url/mojom/url.mojom";

// A property can have arrays of different types simultaneously. Non-array
// values are converted to arrays of one element.
struct Values {
  array<bool> bool_values;
  array<int64> long_values;
  array<string> string_values;
  array<double> double_values;
  array<mojo_base.mojom.Time> date_time_values;
  array<mojo_base.mojom.TimeDelta> time_values;
  array<url.mojom.Url> url_values;
  array<Entity> entity_values;
};

// Key-value pair for the attributes of an |Entity|.
struct Property {
  string name;
  Values values;
};

// Top-level metadata entry using schema.org vocabulary.
// Tree structure of entities is possible.
// Ref: https://developers.google.com/schemas/formats/json-ld
struct Entity {
  // Corresponds to the "@type" key, defined in JSON-LD.
  // See: https://w3c.github.io/json-ld-syntax/#specifying-the-type
  string type;
  // Corresponds to the "@id" key, defined in JSON-LD.
  // See: https://w3c.github.io/json-ld-syntax/#node-identifiers
  string id;
  array<Property> properties;
};