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@google-cloud/datastore/build/src/entity.js

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1"use strict";
2/* eslint-disable no-inner-declarations */
3// Copyright 2014 Google LLC
4//
5// Licensed under the Apache License, Version 2.0 (the "License");
6// you may not use this file except in compliance with the License.
7// You may obtain a copy of the License at
8//
9//      http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing, software
12// distributed under the License is distributed on an "AS IS" BASIS,
13// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14// See the License for the specific language governing permissions and
15// limitations under the License.
16Object.defineProperty(exports, "__esModule", { value: true });
17exports.entity = void 0;
18const arrify = require("arrify");
19const extend = require("extend");
20const is = require("is");
21const google_gax_1 = require("google-gax");
22const path = require("path");
23// eslint-disable-next-line @typescript-eslint/no-namespace
24var entity;
25(function (entity_1) {
  class InvalidKeyError extends Error {
      constructor(opts) {
          const errorMessages = {
              MISSING_KIND: 'A key should contain at least a kind.',
              MISSING_ANCESTOR_ID: 'Ancestor keys require an id or name.',
          };
          super(errorMessages[opts.code]);
          this.name = 'InvalidKey';
      }
  }
  entity_1.InvalidKeyError = InvalidKeyError;
  /**
   * A symbol to access the Key object from an entity object.
   *
   * @type {symbol}
   * @private
   */
  entity_1.KEY_SYMBOL = Symbol('KEY');
  /**
   * Build a Datastore Double object. For long doubles, a string can be
   * provided.
   *
   * @class
   * @param {number} value The double value.
   *
   * @example
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const aDouble = datastore.double(7.3);
   */
  class Double {
      constructor(value) {
          /**
           * @name Double#type
           * @type {string}
           */
          this.type = 'DatastoreDouble';
          /**
           * @name Double#value
           * @type {number}
           */
          this.value = value;
      }
  }
  entity_1.Double = Double;
  /**
   * Check if something is a Datastore Double object.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsDouble(value) {
      return value instanceof entity.Double;
  }
  entity_1.isDsDouble = isDsDouble;
  /**
   * Check if a value is a Datastore Double object converted from JSON.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsDoubleLike(value) {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const maybeDsDouble = value;
      return (isDsDouble(maybeDsDouble) ||
          (is.object(maybeDsDouble) &&
              is.number(maybeDsDouble.value) &&
              maybeDsDouble.type === 'DatastoreDouble'));
  }
  entity_1.isDsDoubleLike = isDsDoubleLike;
  /**
   * Build a Datastore Int object. For long integers, a string can be provided.
   *
   * @class
   * @param {number|string} value The integer value.
   * @param {object} [typeCastOptions] Configuration to convert
   *     values of `integerValue` type to a custom value. Must provide an
   *     `integerTypeCastFunction` to handle `integerValue` conversion.
   * @param {function} typeCastOptions.integerTypeCastFunction A custom user
   *     provided function to convert `integerValue`.
   * @param {sting|string[]} [typeCastOptions.properties] `Entity` property
   *     names to be converted using `integerTypeCastFunction`.
   *
   * @example
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const anInt = datastore.int(7);
   */
  class Int extends Number {
      constructor(value, typeCastOptions) {
          super(typeof value === 'object' ? value.integerValue : value);
          this._entityPropertyName =
              typeof value === 'object' ? value.propertyName : undefined;
          this.value =
              typeof value === 'object'
                  ? value.integerValue.toString()
                  : value.toString();
          /**
           * @name Int#type
           * @type {string}
           */
          this.type = 'DatastoreInt';
          /**
           * @name Int#value
           * @type {string}
           */
          if (typeCastOptions) {
              this.typeCastFunction = typeCastOptions.integerTypeCastFunction;
              if (typeof typeCastOptions.integerTypeCastFunction !== 'function') {
                  throw new Error('integerTypeCastFunction is not a function or was not provided.');
              }
              this.typeCastProperties = typeCastOptions.properties
                  ? arrify(typeCastOptions.properties)
                  : undefined;
          }
      }
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      valueOf() {
          let shouldCustomCast = this.typeCastFunction ? true : false;
          if (this.typeCastProperties &&
              !this.typeCastProperties.includes(this._entityPropertyName)) {
              shouldCustomCast = false;
          }
          if (shouldCustomCast) {
              try {
                  return this.typeCastFunction(this.value);
              }
              catch (error) {
                  error.message = `integerTypeCastFunction threw an error:\n\n  - ${error.message}`;
                  throw error;
              }
          }
          else {
              return decodeIntegerValue({
                  integerValue: this.value,
                  propertyName: this._entityPropertyName,
              });
          }
      }
      toJSON() {
          return { type: this.type, value: this.value };
      }
  }
  entity_1.Int = Int;
  /**
   * Check if something is a Datastore Int object.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsInt(value) {
      return value instanceof entity.Int;
  }
  entity_1.isDsInt = isDsInt;
  /**
   * Check if a value is a Datastore Int object converted from JSON.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsIntLike(value) {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const maybeDsInt = value;
      return (isDsInt(maybeDsInt) ||
          (is.object(maybeDsInt) &&
              is.string(maybeDsInt.value) &&
              maybeDsInt.type === 'DatastoreInt'));
  }
  entity_1.isDsIntLike = isDsIntLike;
  /**
   * Build a Datastore Geo Point object.
   *
   * @class
   * @param {object} coordinates Coordinate value.
   * @param {number} coordinates.latitude Latitudinal value.
   * @param {number} coordinates.longitude Longitudinal value.
   *
   * @example
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const coordinates = {
   *   latitude: 40.6894,
   *   longitude: -74.0447
   * };
   *
   * const geoPoint = datastore.geoPoint(coordinates);
   */
  class GeoPoint {
      constructor(coordinates) {
          /**
           * Coordinate value.
           *
           * @name GeoPoint#coordinates
           * @type {object}
           * @property {number} latitude Latitudinal value.
           * @property {number} longitude Longitudinal value.
           */
          this.value = coordinates;
      }
  }
  entity_1.GeoPoint = GeoPoint;
  /**
   * Check if something is a Datastore Geo Point object.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsGeoPoint(value) {
      return value instanceof entity.GeoPoint;
  }
  entity_1.isDsGeoPoint = isDsGeoPoint;
  /**
   * Build a Datastore Key object.
   *
   * @class
   * @param {object} options Configuration object.
   * @param {array} options.path Key path.
   * @param {string} [options.namespace] Optional namespace.
   *
   * @example
   * //-
   * // Create an incomplete key with a kind value of `Company`.
   * //-
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const key = datastore.key('Company');
   *
   * @example
   * //-
   * // Create a complete key with a kind value of `Company` and id`123`.
   * //-
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const key = datastore.key(['Company', 123]);
   *
   * @example
   * //-
   * // If the ID integer is outside the bounds of a JavaScript Number
   * // object, create an Int.
   * //-
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const key = datastore.key([
   *   'Company',
   *   datastore.int('100000000000001234')
   * ]);
   *
   * @example
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * // Create a complete key with a kind value of `Company` and name `Google`.
   * // Note: `id` is used for numeric identifiers and `name` is used otherwise.
   * const key = datastore.key(['Company', 'Google']);
   *
   * @example
   * //-
   * // Create a complete key from a provided namespace and path.
   * //-
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const key = datastore.key({
   *   namespace: 'My-NS',
   *   path: ['Company', 123]
   * });
   *
   * @example <caption>Serialize the key for later re-use.</caption>
   * const {Datastore} = require('@google-cloud/datastore');
   * const datastore = new Datastore();
   * const key = datastore.key({
   *   namespace: 'My-NS',
   *   path: ['Company', 123]
   * });
   * // Later...
   * const key = datastore.key(key.serialized);
   */
  class Key {
      constructor(options) {
          /**
           * @name Key#namespace
           * @type {string}
           */
          this.namespace = options.namespace;
          options.path = [].slice.call(options.path);
          if (options.path.length % 2 === 0) {
              const identifier = options.path.pop();
              if (is.number(identifier) ||
                  isDsInt(identifier) ||
                  isDsIntLike(identifier)) {
                  this.id = (identifier.value || identifier);
              }
              else if (is.string(identifier)) {
                  this.name = identifier;
              }
          }
          this.kind = options.path.pop();
          if (options.path.length > 0) {
              this.parent = new Key(options);
          }
          // `path` is computed on demand to consider any changes that may have been
          // made to the key.
          /**
           * @name Key#path
           * @type {array}
           */
          Object.defineProperty(this, 'path', {
              enumerable: true,
              get() {
                  return arrify(this.parent && this.parent.path).concat([
                      this.kind,
                      this.name || this.id,
                  ]);
              },
          });
      }
      /**
       * Access the `serialized` property for a library-compatible way to re-use a
       * key.
       *
       * @returns {object}
       *
       * @example
       * const key = datastore.key({
       *   namespace: 'My-NS',
       *   path: ['Company', 123]
       * });
       *
       * // Later...
       * const key = datastore.key(key.serialized);
       */
      get serialized() {
          const serializedKey = {
              namespace: this.namespace,
              path: [this.kind, this.name || new Int(this.id)],
          };
          if (this.parent) {
              serializedKey.path = this.parent.serialized.path.concat(serializedKey.path);
          }
          return serializedKey;
      }
  }
  entity_1.Key = Key;
  /**
   * Check if something is a Datastore Key object.
   *
   * @private
   * @param {*} value
   * @returns {boolean}
   */
  function isDsKey(value) {
      return value instanceof entity.Key;
  }
  entity_1.isDsKey = isDsKey;
  /**
   * Convert a protobuf `integerValue`.
   *
   * @private
   * @param {object} value The `integerValue` to convert.
   */
  function decodeIntegerValue(value) {
      const num = Number(value.integerValue);
      if (!Number.isSafeInteger(num)) {
          throw new Error('We attempted to return all of the numeric values, but ' +
              (value.propertyName ? value.propertyName + ' ' : '') +
              'value ' +
              value.integerValue +
              " is out of bounds of 'Number.MAX_SAFE_INTEGER'.\n" +
              "To prevent this error, please consider passing 'options.wrapNumbers=true' or\n" +
              "'options.wrapNumbers' as\n" +
              '{\n' +
              '  integerTypeCastFunction: provide <your_custom_function>\n' +
              '  properties: optionally specify property name(s) to be custom casted\n' +
              '}\n');
      }
      return num;
  }
  /**
   * @typedef {object} IntegerTypeCastOptions Configuration to convert
   *     values of `integerValue` type to a custom value. Must provide an
   *     `integerTypeCastFunction` to handle `integerValue` conversion.
   * @property {function} integerTypeCastFunction A custom user
   *     provided function to convert `integerValue`.
   * @property {string | string[]} [properties] `Entity` property
   *     names to be converted using `integerTypeCastFunction`.
   */
  /**
   * Convert a protobuf Value message to its native value.
   *
   * @private
   * @param {object} valueProto The protobuf Value message to convert.
   * @param {boolean | IntegerTypeCastOptions} [wrapNumbers=false] Wrap values of integerValue type in
   *     {@link Datastore#Int} objects.
   *     If a `boolean`, this will wrap values in {@link Datastore#Int} objects.
   *     If an `object`, this will return a value returned by
   *     `wrapNumbers.integerTypeCastFunction`.
   *     Please see {@link IntegerTypeCastOptions} for options descriptions.
   * @returns {*}
   *
   * @example
   * decodeValueProto({
   *   booleanValue: false
   * });
   * // false
   *
   * decodeValueProto({
   *   stringValue: 'Hi'
   * });
   * // 'Hi'
   *
   * decodeValueProto({
   *   blobValue: Buffer.from('68656c6c6f')
   * });
   * // <Buffer 68 65 6c 6c 6f>
   */
  function decodeValueProto(valueProto, wrapNumbers) {
      const valueType = valueProto.valueType;
      const value = valueProto[valueType];
      switch (valueType) {
          case 'arrayValue': {
              // eslint-disable-next-line @typescript-eslint/no-explicit-any
              return value.values.map((val) => entity.decodeValueProto(val, wrapNumbers));
          }
          case 'blobValue': {
              return Buffer.from(value, 'base64');
          }
          case 'nullValue': {
              return null;
          }
          case 'doubleValue': {
              return Number(value);
          }
          case 'integerValue': {
              return wrapNumbers
                  ? typeof wrapNumbers === 'object'
                      ? new entity.Int(valueProto, wrapNumbers).valueOf()
                      : new entity.Int(valueProto, undefined)
                  : decodeIntegerValue(valueProto);
          }
          case 'entityValue': {
              return entity.entityFromEntityProto(value, wrapNumbers);
          }
          case 'keyValue': {
              return entity.keyFromKeyProto(value);
          }
          case 'timestampValue': {
              const milliseconds = Number(value.nanos) / 1e6;
              return new Date(Number(value.seconds) * 1000 + milliseconds);
          }
          default: {
              return value;
          }
      }
  }
  entity_1.decodeValueProto = decodeValueProto;
  /**
   * Convert any native value to a protobuf Value message object.
   *
   * @private
   * @param {*} value Native value.
   * @returns {object}
   *
   * @example
   * encodeValue('Hi');
   * // {
   * //   stringValue: 'Hi'
   * // }
   */
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  function encodeValue(value, property) {
      const valueProto = {};
      if (is.boolean(value)) {
          valueProto.booleanValue = value;
          return valueProto;
      }
      if (is.null(value)) {
          valueProto.nullValue = 0;
          return valueProto;
      }
      if (typeof value === 'number') {
          if (Number.isInteger(value)) {
              if (!Number.isSafeInteger(value)) {
                  process.emitWarning('IntegerOutOfBoundsWarning: ' +
                      "the value for '" +
                      property +
                      "' property is outside of bounds of a JavaScript Number.\n" +
                      "Use 'Datastore.int(<integer_value_as_string>)' to preserve accuracy during the upload.");
              }
              value = new entity.Int(value);
          }
          else {
              value = new entity.Double(value);
          }
      }
      if (isDsInt(value)) {
          valueProto.integerValue = value.value;
          return valueProto;
      }
      if (isDsDouble(value)) {
          valueProto.doubleValue = value.value;
          return valueProto;
      }
      if (isDsGeoPoint(value)) {
          valueProto.geoPointValue = value.value;
          return valueProto;
      }
      if (value instanceof Date) {
          const seconds = value.getTime() / 1000;
          valueProto.timestampValue = {
              seconds: Math.floor(seconds),
              nanos: value.getMilliseconds() * 1e6,
          };
          return valueProto;
      }
      if (is.string(value)) {
          valueProto.stringValue = value;
          return valueProto;
      }
      if (value instanceof Buffer) {
          // Convert the buffer to a base 64 string to workaround a bug of
          // protobufs encoding empty buffer.
          // See https://github.com/googleapis/nodejs-datastore/issues/755
          valueProto.blobValue = value.toString('base64');
          return valueProto;
      }
      if (Array.isArray(value)) {
          valueProto.arrayValue = {
              values: value.map(val => entity.encodeValue(val, property)),
          };
          return valueProto;
      }
      if (isDsKey(value)) {
          valueProto.keyValue = entity.keyToKeyProto(value);
          return valueProto;
      }
      if (is.object(value)) {
          if (!is.empty(value)) {
              value = extend(true, {}, value);
              for (const prop in value) {
                  value[prop] = entity.encodeValue(value[prop], prop);
              }
          }
          valueProto.entityValue = {
              properties: value,
          };
          return valueProto;
      }
      throw new Error('Unsupported field value, ' + value + ', was provided.');
  }
  entity_1.encodeValue = encodeValue;
  /**
   * Convert any entity protocol to a plain object.
   *
   * @todo Use registered metadata if provided.
   *
   * @private
   * @param {object} entityProto The protocol entity object to convert.
   * @param {boolean | IntegerTypeCastOptions} [wrapNumbers=false] Wrap values of integerValue type in
   *     {@link Datastore#Int} objects.
   *     If a `boolean`, this will wrap values in {@link Datastore#Int} objects.
   *     If an `object`, this will return a value returned by
   *     `wrapNumbers.integerTypeCastFunction`.
   *     Please see {@link IntegerTypeCastOptions} for options descriptions.
   * @returns {object}
   *
   * @example
   * entityFromEntityProto({
   *   properties: {
   *     map: {
   *       name: {
   *         value: {
   *           valueType: 'stringValue',
   *           stringValue: 'Stephen'
   *         }
   *       }
   *     }
   *   }
   * });
   * // {
   * //   name: 'Stephen'
   * // }
   */
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  function entityFromEntityProto(entityProto, wrapNumbers) {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const entityObject = {};
      const properties = entityProto.properties || {};
      for (const property in properties) {
          const value = properties[property];
          value.propertyName = property;
          entityObject[property] = entity.decodeValueProto(value, wrapNumbers);
      }
      return entityObject;
  }
  entity_1.entityFromEntityProto = entityFromEntityProto;
  /**
   * Convert an entity object to an entity protocol object.
   *
   * @private
   * @param {object} entityObject The entity object to convert.
   * @returns {object}
   *
   * @example
   * entityToEntityProto({
   *   excludeFromIndexes: [
   *     'name'
   *   ],
   *   data: {
   *     name: 'Burcu',
   *     legit: true
   *   }
   * });
   * // {
   * //   key: null,
   * //   properties: {
   * //     name: {
   * //       stringValue: 'Burcu'
   * //       excludeFromIndexes: true
   * //     },
   * //     legit: {
   * //       booleanValue: true
   * //     }
   * //   }
   * // }
   */
  function entityToEntityProto(entityObject) {
      const properties = entityObject.data;
      const excludeFromIndexes = entityObject.excludeFromIndexes;
      const entityProto = {
          key: null,
          properties: Object.keys(properties).reduce((encoded, key) => {
              encoded[key] = entity.encodeValue(properties[key], key);
              return encoded;
          }, 
          // eslint-disable-next-line @typescript-eslint/no-explicit-any
          {}),
      };
      if (excludeFromIndexes && excludeFromIndexes.length > 0) {
          excludeFromIndexes.forEach((excludePath) => {
              excludePathFromEntity(entityProto, excludePath);
          });
      }
      return entityProto;
      function excludePathFromEntity(entity, path) {
          const arrayIndex = path.indexOf('[]');
          const entityIndex = path.indexOf('.');
          const wildcardIndex = path.indexOf('.*');
          const hasArrayPath = arrayIndex > -1;
          const hasEntityPath = entityIndex > -1;
          const hasWildCard = wildcardIndex > -1;
          if (!hasArrayPath && !hasEntityPath) {
              // This is the path end node. Traversal ends here in either case.
              if (entity.properties) {
                  if (entity.properties[path] &&
                      // array properties should be excluded with [] syntax:
                      !entity.properties[path].arrayValue) {
                      // This is the property to exclude!
                      entity.properties[path].excludeFromIndexes = true;
                  }
              }
              else if (!path) {
                  // This is a primitive or entity root that should be excluded.
                  entity.excludeFromIndexes = true;
              }
              return;
          }
          let delimiterIndex;
          if (hasArrayPath && hasEntityPath) {
              delimiterIndex = Math.min(arrayIndex, entityIndex);
          }
          else {
              delimiterIndex = Math.max(arrayIndex, entityIndex);
          }
          const firstPathPartIsArray = delimiterIndex === arrayIndex;
          const firstPathPartIsEntity = delimiterIndex === entityIndex;
          const delimiter = firstPathPartIsArray ? '[]' : '.';
          const splitPath = path.split(delimiter);
          const firstPathPart = splitPath.shift();
          const remainderPath = splitPath.join(delimiter).replace(/^(\.|\[\])/, '');
          if (!(entity.properties && entity.properties[firstPathPart]) &&
              !hasWildCard) {
              // Either a primitive or an entity for which this path doesn't apply.
              return;
          }
          if (firstPathPartIsArray &&
              // check also if the property in question is actually an array value.
              entity.properties[firstPathPart].arrayValue &&
              // check if wildcard is not applied
              !hasWildCard) {
              const array = entity.properties[firstPathPart].arrayValue;
              // eslint-disable-next-line @typescript-eslint/no-explicit-any
              array.values.forEach((value) => {
                  if (remainderPath === '') {
                      // We want to exclude *this* array property, which is
                      // equivalent with excluding all its values
                      // (including entity values at their roots):
                      excludePathFromEntity(value, remainderPath // === ''
                      );
                  }
                  else {
                      // Path traversal continues at value.entityValue,
                      // if it is an entity, or must end at value.
                      excludePathFromEntity(value.entityValue || value, remainderPath // !== ''
                      );
                  }
              });
          }
          else if (firstPathPartIsArray && hasWildCard && remainderPath === '*') {
              const array = entity.properties[firstPathPart].arrayValue;
              // eslint-disable-next-line @typescript-eslint/no-explicit-any
              array.values.forEach((value) => {
                  if (value.entityValue) {
                      excludePathFromEntity(value.entityValue, '.*');
                  }
                  else {
                      excludePathFromEntity(value, '');
                  }
              });
          }
          else if (firstPathPartIsEntity) {
              if (firstPathPart === '') {
                  Object.keys(entity.properties).forEach(path => {
                      const newPath = entity.properties[path].arrayValue
                          ? path + '[].*'
                          : path + '.*';
                      excludePathFromEntity(entity, newPath);
                  });
              }
              else {
                  if (hasWildCard && remainderPath === '*') {
                      const parentEntity = entity.properties[firstPathPart].entityValue;
                      if (parentEntity) {
                          Object.keys(parentEntity.properties).forEach(path => {
                              const newPath = parentEntity.properties[path].arrayValue
                                  ? path + '[].*'
                                  : path + '.*';
                              excludePathFromEntity(parentEntity, newPath);
                          });
                      }
                      else {
                          excludePathFromEntity(entity, firstPathPart);
                      }
                  }
                  else {
                      const parentEntity = entity.properties[firstPathPart].entityValue;
                      excludePathFromEntity(parentEntity, remainderPath);
                  }
              }
          }
      }
  }
  entity_1.entityToEntityProto = entityToEntityProto;
  /**
   * Convert an API response array to a qualified Key and data object.
   *
   * @private
   * @param {object[]} results The response array.
   * @param {object} results.entity An entity object.
   * @param {object} results.entity.key The entity's key.
   * @param {boolean | IntegerTypeCastOptions} [wrapNumbers=false] Wrap values of integerValue type in
   *     {@link Datastore#Int} objects.
   *     If a `boolean`, this will wrap values in {@link Datastore#Int} objects.
   *     If an `object`, this will return a value returned by
   *     `wrapNumbers.integerTypeCastFunction`.
   *     Please see {@link IntegerTypeCastOptions} for options descriptions.
   *
   * @example
   * request_('runQuery', {}, (err, response) => {
   *   const entityObjects = formatArray(response.batch.entityResults);
   *   // {
   *   //   key: {},
   *   //   data: {
   *   //     fieldName: 'value'
   *   //   }
   *   // }
   *   //
   * });
   */
  function formatArray(results, wrapNumbers) {
      return results.map(result => {
          const ent = entity.entityFromEntityProto(result.entity, wrapNumbers);
          ent[entity.KEY_SYMBOL] = entity.keyFromKeyProto(result.entity.key);
          return ent;
      });
  }
  entity_1.formatArray = formatArray;
  /**
   * Find the properties which value size is large than 1500 bytes,
   * with excludeLargeProperties enabled, automatically exclude properties from indexing.
   * This will allow storing string values larger than 1500 bytes
   *
   * @param entities Datastore key object(s).
   * @param path namespace of provided entity properties
   * @param properties properties which value size is large than 1500 bytes
   */
  function findLargeProperties_(entities, path, properties = []) {
      const MAX_DATASTORE_VALUE_LENGTH = 1500;
      if (Array.isArray(entities)) {
          for (const entry of entities) {
              if (entry && entry.name && entry.value) {
                  if (is.string(entry.value) &&
                      Buffer.from(entry.value).length > MAX_DATASTORE_VALUE_LENGTH) {
                      entry.excludeFromIndexes = true;
                  }
                  else {
                      continue;
                  }
              }
              findLargeProperties_(entry, path.concat('[]'), properties);
          }
      }
      else if (is.object(entities)) {
          const keys = Object.keys(entities);
          for (const key of keys) {
              findLargeProperties_(entities[key], path.concat(`${path ? '.' : ''}${key}`), properties);
          }
      }
      else if (is.string(entities) &&
          Buffer.from(entities).length > MAX_DATASTORE_VALUE_LENGTH) {
          if (properties.indexOf(path) < 0) {
              properties.push(path);
          }
      }
      return properties;
  }
  entity_1.findLargeProperties_ = findLargeProperties_;
  /**
   * Check if a key is complete.
   *
   * @private
   * @param {Key} key The Key object.
   * @returns {boolean}
   *
   * @example
   * isKeyComplete(new Key(['Company', 'Google'])); // true
   * isKeyComplete(new Key('Company')); // false
   */
  function isKeyComplete(key) {
      const lastPathElement = entity.keyToKeyProto(key).path.pop();
      return !!(lastPathElement.id || lastPathElement.name);
  }
  entity_1.isKeyComplete = isKeyComplete;
  /**
   * Convert a key protocol object to a Key object.
   *
   * @private
   * @param {object} keyProto The key protocol object to convert.
   * @returns {Key}
   *
   * @example
   * const key = keyFromKeyProto({
   *   partitionId: {
   *     projectId: 'project-id',
   *     namespaceId: ''
   *   },
   *   path: [
   *     {
   *       kind: 'Kind',
   *       id: '4790047639339008'
   *     }
   *   ]
   * });
   */
  function keyFromKeyProto(keyProto) {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const keyOptions = {
          path: [],
      };
      if (keyProto.partitionId && keyProto.partitionId.namespaceId) {
          keyOptions.namespace = keyProto.partitionId.namespaceId;
      }
      keyProto.path.forEach((path, index) => {
          keyOptions.path.push(path.kind);
          let id = path[path.idType];
          if (path.idType === 'id') {
              id = new entity.Int(id);
          }
          if (is.defined(id)) {
              keyOptions.path.push(id);
          }
          else if (index < keyProto.path.length - 1) {
              throw new InvalidKeyError({
                  code: 'MISSING_ANCESTOR_ID',
              });
          }
      });
      return new entity.Key(keyOptions);
  }
  entity_1.keyFromKeyProto = keyFromKeyProto;
  /**
   * Convert a Key object to a key protocol object.
   *
   * @private
   * @param {Key} key The Key object to convert.
   * @returns {object}
   *
   * @example
   * const keyProto = keyToKeyProto(new Key(['Company', 1]));
   * // {
   * //   path: [
   * //     {
   * //       kind: 'Company',
   * //       id: 1
   * //     }
   * //   ]
   * // }
   */
  function keyToKeyProto(key) {
      if (is.undefined(key.kind)) {
          throw new InvalidKeyError({
              code: 'MISSING_KIND',
          });
      }
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const keyProto = {
          path: [],
      };
      if (key.namespace) {
          keyProto.partitionId = {
              namespaceId: key.namespace,
          };
      }
      let numKeysWalked = 0;
      // Reverse-iterate over the Key objects.
      do {
          if (numKeysWalked > 0 && is.undefined(key.id) && is.undefined(key.name)) {
              // This isn't just an incomplete key. An ancestor key is incomplete.
              throw new InvalidKeyError({
                  code: 'MISSING_ANCESTOR_ID',
              });
          }
          // eslint-disable-next-line @typescript-eslint/no-explicit-any
          const pathElement = {
              kind: key.kind,
          };
          if (is.defined(key.id)) {
              pathElement.id = key.id;
          }
          if (is.defined(key.name)) {
              pathElement.name = key.name;
          }
          keyProto.path.unshift(pathElement);
      } while ((key = key.parent) && ++numKeysWalked);
      return keyProto;
  }
  entity_1.keyToKeyProto = keyToKeyProto;
  /**
   * Convert a query object to a query protocol object.
   *
   * @private
   * @param {object} q The query object to convert.
   * @returns {object}
   *
   * @example
   * queryToQueryProto({
   *   namespace: '',
   *   kinds: [
   *     'Kind'
   *   ],
   *   filters: [],
   *   orders: [],
   *   groupByVal: [],
   *   selectVal: [],
   *   startVal: null,
   *   endVal: null,
   *   limitVal: -1,
   *   offsetVal: -1
   * });
   * // {
   * //   projection: [],
   * //   kinds: [
   * //     {
   * //       name: 'Kind'
   * //     }
   * //   ],
   * //   order: [],
   * //   groupBy: []
   * // }
   */
  function queryToQueryProto(query) {
      const OP_TO_OPERATOR = {
          '=': 'EQUAL',
          '>': 'GREATER_THAN',
          '>=': 'GREATER_THAN_OR_EQUAL',
          '<': 'LESS_THAN',
          '<=': 'LESS_THAN_OR_EQUAL',
          HAS_ANCESTOR: 'HAS_ANCESTOR',
      };
      const SIGN_TO_ORDER = {
          '-': 'DESCENDING',
          '+': 'ASCENDING',
      };
      const queryProto = {
          distinctOn: query.groupByVal.map(groupBy => {
              return {
                  name: groupBy,
              };
          }),
          kind: query.kinds.map(kind => {
              return {
                  name: kind,
              };
          }),
          order: query.orders.map(order => {
              return {
                  property: {
                      name: order.name,
                  },
                  direction: SIGN_TO_ORDER[order.sign],
              };
          }),
          projection: query.selectVal.map(select => {
              return {
                  property: {
                      name: select,
                  },
              };
          }),
      };
      if (query.endVal) {
          queryProto.endCursor = query.endVal;
      }
      if (query.limitVal > 0) {
          queryProto.limit = {
              value: query.limitVal,
          };
      }
      if (query.offsetVal > 0) {
          queryProto.offset = query.offsetVal;
      }
      if (query.startVal) {
          queryProto.startCursor = query.startVal;
      }
      if (query.filters.length > 0) {
          const filters = query.filters.map(filter => {
              // eslint-disable-next-line @typescript-eslint/no-explicit-any
              let value = {};
              if (filter.name === '__key__') {
                  value.keyValue = entity.keyToKeyProto(filter.val);
              }
              else {
                  value = entity.encodeValue(filter.val, filter.name);
              }
              return {
                  propertyFilter: {
                      property: {
                          name: filter.name,
                      },
                      op: OP_TO_OPERATOR[filter.op],
                      value,
                  },
              };
          });
          queryProto.filter = {
              compositeFilter: {
                  filters,
                  op: 'AND',
              },
          };
      }
      return queryProto;
  }
  entity_1.queryToQueryProto = queryToQueryProto;
  /**
   * URL safe key encoding and decoding helper utility.
   *
   *  This is intended to work with the "legacy" representation of a
   * datastore "Key" used within Google App Engine (a so-called "Reference").
   *
   * @private
   * @class
   */
  class URLSafeKey {
      constructor() {
          this.protos = this.loadProtos_();
      }
      /**
       *  Load AppEngine protobuf file.
       *
       *  @private
       */
      loadProtos_() {
          const root = new google_gax_1.protobuf.Root();
          const loadedRoot = root.loadSync(path.join(__dirname, '..', 'protos', 'app_engine_key.proto'));
          loadedRoot.resolveAll();
          return loadedRoot.nested;
      }
      /**
       * Convert key to url safe base64 encoded string.
       *
       * @private
       * @param {string} projectId Project Id.
       * @param {entity.Key} key Entity key object.
       * @param {string} locationPrefix Optional .
       *  The location prefix of an App Engine project ID.
       *  Often this value is 's~', but may also be 'e~', or other location prefixes
       *  currently unknown.
       * @returns {string} base64 endocded urlsafe key.
       */
      legacyEncode(projectId, key, locationPrefix) {
          const elements = [];
          let currentKey = key;
          do {
              // eslint-disable-next-line @typescript-eslint/no-explicit-any
              const element = {
                  type: currentKey.kind,
              };
              if (is.defined(currentKey.id)) {
                  element.id = currentKey.id;
              }
              if (is.defined(currentKey.name)) {
                  element.name = currentKey.name;
              }
              elements.unshift(element);
              currentKey = currentKey.parent;
          } while (currentKey);
          if (locationPrefix) {
              projectId = `${locationPrefix}${projectId}`;
          }
          const reference = {
              app: projectId,
              namespace: key.namespace,
              path: { element: elements },
          };
          const buffer = this.protos.Reference.encode(reference).finish();
          return this.convertToBase64_(buffer);
      }
      /**
       * Helper to convert URL safe key string to entity key object
       *
       * This is intended to work with the "legacy" representation of a
       * datastore "Key" used within Google App Engine (a so-called "Reference").
       *
       * @private
       * @param {entity.Key} key Entity key object.
       * @param {string} locationPrefix Optional .
       *  The location prefix of an App Engine project ID.
       *  Often this value is 's~', but may also be 'e~', or other location prefixes
       *  currently unknown.
       * @returns {string} Created urlsafe key.
       */
      legacyDecode(key) {
          const buffer = this.convertToBuffer_(key);
          const message = this.protos.Reference.decode(buffer);
          const reference = this.protos.Reference.toObject(message, {
              longs: String,
          });
          const pathElements = [];
          // eslint-disable-next-line @typescript-eslint/no-explicit-any
          reference.path.element.forEach((element) => {
              pathElements.push(element.type);
              if (is.defined(element.name)) {
                  pathElements.push(element.name);
              }
              if (is.defined(element.id)) {
                  pathElements.push(new entity.Int(element.id));
              }
          });
          const keyOptions = {
              path: pathElements,
          };
          if (!is.empty(reference.namespace)) {
              keyOptions.namespace = reference.namespace;
          }
          return new entity.Key(keyOptions);
      }
      /**
       * Convert buffer to base64 encoding.
       *
       * @private
       * @param {Buffer} buffer
       * @returns {string} Base64 encoded string.
       */
      convertToBase64_(buffer) {
          return buffer
              .toString('base64')
              .replace(/\+/g, '-')
              .replace(/\//g, '_')
              .replace(/=+$/, '');
      }
      /**
       * Rebuild base64 from encoded url safe string and convert to buffer.
       *
       * @private
       * @param {string} val Encoded url safe string.
       * @returns {string} Base64 encoded string.
       */
      convertToBuffer_(val) {
          val = val.replace(/-/g, '+').replace(/_/g, '/');
          val += '='.repeat(val.length % 4);
          return Buffer.from(val, 'base64');
      }
  }
  entity_1.URLSafeKey = URLSafeKey;
1223})(entity = exports.entity || (exports.entity = {}));
1224//# sourceMappingURL=entity.js.map
\No newline at end of file
1	`"use strict";`
2	`/* eslint-disable no-inner-declarations */`
3	`// Copyright 2014 Google LLC`
4	`//`
5	`// Licensed under the Apache License, Version 2.0 (the "License");`
6	`// you may not use this file except in compliance with the License.`
7	`// You may obtain a copy of the License at`
8	`//`
9	`// http://www.apache.org/licenses/LICENSE-2.0`
10	`//`
11	`// Unless required by applicable law or agreed to in writing, software`
12	`// distributed under the License is distributed on an "AS IS" BASIS,`
13	`// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.`
14	`// See the License for the specific language governing permissions and`
15	`// limitations under the License.`
16	`Object.defineProperty(exports, "__esModule", { value: true });`
17	`exports.entity = void 0;`
18	`const arrify = require("arrify");`
19	`const extend = require("extend");`
20	`const is = require("is");`
21	`const google_gax_1 = require("google-gax");`
22	`const path = require("path");`
23	`// eslint-disable-next-line @typescript-eslint/no-namespace`
24	`var entity;`
25	`(function (entity_1) {`
26	`class InvalidKeyError extends Error {`
27	`constructor(opts) {`
28	`const errorMessages = {`
29	`MISSING_KIND: 'A key should contain at least a kind.',`
30	`MISSING_ANCESTOR_ID: 'Ancestor keys require an id or name.',`
31	`};`
32	`super(errorMessages[opts.code]);`
33	`this.name = 'InvalidKey';`
34	`}`
35	`}`
36	`entity_1.InvalidKeyError = InvalidKeyError;`
37	`/**`
38	`* A symbol to access the Key object from an entity object.`
39	`*`
40	`* @type {symbol}`