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// Copyright 2018-2022 Gamebridge.ai authors. All rights reserved. MIT license.
import { JSONObject, Serializable } from "../../serializable.ts";import { FromJSONStrategy } from "../compose_strategy.ts";import {  ERROR_TO_OBJECT_CONTAINING_INVALID_SUB_VALUE,  ERROR_TO_OBJECT_CONTAINING_INVALID_VALUE,} from "../../error_messages.ts";import { isObject } from "../_utils.ts";import { getNewSerializable } from "../utils.ts";
/** revive data from `{k: v}` using `fromJSON` on a subclass type `v` */export function toObjectContaining(  type: unknown,): FromJSONStrategy {  return (    value: { [k: string]: JSONObject | JSONObject[] },  ): null | Record<string, Serializable | Serializable[] | null> => {    if (value == null) {      return null;    }
    if (!isObject(value)) {      throw new Error(ERROR_TO_OBJECT_CONTAINING_INVALID_VALUE);    }
    const record: Record<string, Serializable | Serializable[] | null> = {};    // check that JSONValue is something we can deal with    // but mostly to make the type checker happy    if (typeof value === "object" && !Array.isArray(value)) {      for (const prop in value) {        // null is a JSONValue        if (value[prop] === null) {          record[prop] = null;          continue;        }
        // Serializable[]        if (Array.isArray(value[prop])) {          record[prop] = (value[prop] as JSONObject[]).map((v) => {            if (!isObject(v)) {              throw new Error(ERROR_TO_OBJECT_CONTAINING_INVALID_SUB_VALUE);            }            return getNewSerializable(type).fromJSON(v);          });          continue;        }
        // only process Serializable        if (!isObject(value[prop])) {          throw new Error(ERROR_TO_OBJECT_CONTAINING_INVALID_SUB_VALUE);        }
        record[prop] = getNewSerializable(type).fromJSON(          value[prop] as JSONObject,        );      }    }    return record;  };}