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// Copyright 2018-2022 Gamebridge.ai authors. All rights reserved. MIT license.import { FromJSONStrategy } from "../compose_strategy.ts";import { JSONValue } from "../../serializable.ts";import { ERROR_INVALID_DATE } from "../../error_messages.ts";
/** allows authors to pass a regex to parse as a date */export function createDateStrategy(regex: RegExp): FromJSONStrategy {  return (input: JSONValue): Date => {    if (typeof input !== "string" || !regex.exec(input)) {      throw new Error(ERROR_INVALID_DATE);    }    const date = new Date(input);    if (date.toJSON() === null) {      throw new Error(ERROR_INVALID_DATE);    }    return date;  };}
/** Test a string for a ISO 8601 Date */export function iso8601Date(): FromJSONStrategy {  return (input: JSONValue): Date => {    /** a provided regex to deal with iso formats     * @example 2008-08-30T01:45:36     * @example 2008-08-30T01:45:36.123Z     * @see https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch04s07.html     */    const iso =      //        <year>              -    <month>    -         <day>   <T non optional> <hour>:    <minute>:    <second>    <.milli> <Z  or `-+timezone`>      /^(-?(?:[1-9][0-9]*)?[0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])(\.[0-9]+)?(Z|[+-](?:2[0-3]|[01][0-9]):[0-5][0-9])?$/;    if (typeof input !== "string" || !iso.exec(input)) {      throw new Error(ERROR_INVALID_DATE);    }    return new Date(input);  };}