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import {  format,  formatDistanceToNow,  formatDistanceToNowStrict,} from "../deps/date.ts";import { merge } from "../core/utils/object.ts";
import type Site from "../core/site.ts";import type { Locale } from "../deps/date.ts";
export interface Options {  /** The name of the helper */  name?: string;
  /** The loaded locales */  locales?: Record<string, Locale>;
  /** Custom date formats */  formats?: Record<string, string>;}
// Default optionsexport const defaults: Options = {  name: "date",  locales: {},  formats: {    ATOM: "yyyy-MM-dd'T'HH:mm:ssXXX",    DATE: "yyyy-MM-dd",    DATETIME: "yyyy-MM-dd HH:mm:ss",    TIME: "HH:mm:ss",    HUMAN_DATE: "PPP",    HUMAN_DATETIME: "PPPppp",  },};
/** A plugin to format Date values */export default function (userOptions?: Options) {  const options = merge(defaults, userOptions);
  return (site: Site) => {    const defaultLocale = Object.keys(options.locales).shift();
    site.filter(options.name, filter);
    function filter(      date: string | Date,      pattern = "DATE",      lang = defaultLocale,    ): string | undefined {      if (!date) {        return;      }
      if (date === "now") {        date = new Date();      } else if (!(date instanceof Date)) {        date = new Date(date);      }
      const patt = options.formats[pattern] || pattern;      const locale = lang ? options.locales[lang] : undefined;
      if (pattern === "HUMAN_SINCE") {        return formatDistanceToNow(date, { locale });      } else if (pattern === "HUMAN_SINCE_STRICT") {        return formatDistanceToNowStrict(date, { locale });      } else {        return format(date, patt, { locale });      }    }  };}
/** Extends Helpers interface */declare global {  namespace Lume {    export interface Helpers {      /** @see https://lume.land/plugins/date/ */      date: (        date: string | Date,        pattern?: string,        lang?: string,      ) => string | undefined;    }  }}