| import type { ResolvedMetadata } from '../types/metadata-interface' |
| import type { AlternateLinkDescriptor } from '../types/alternative-urls-types' |
|
|
| import React from 'react' |
| import { MetaFilter } from './meta' |
|
|
| function AlternateLink({ |
| descriptor, |
| ...props |
| }: { |
| descriptor: AlternateLinkDescriptor |
| } & React.LinkHTMLAttributes<HTMLLinkElement>) { |
| if (!descriptor.url) return null |
| return ( |
| <link |
| {...props} |
| {...(descriptor.title && { title: descriptor.title })} |
| href={descriptor.url.toString()} |
| /> |
| ) |
| } |
|
|
| export function AlternatesMetadata({ |
| alternates, |
| }: { |
| alternates: ResolvedMetadata['alternates'] |
| }) { |
| if (!alternates) return null |
|
|
| const { canonical, languages, media, types } = alternates |
|
|
| return MetaFilter([ |
| canonical |
| ? AlternateLink({ rel: 'canonical', descriptor: canonical }) |
| : null, |
| languages |
| ? Object.entries(languages).flatMap(([locale, descriptors]) => |
| descriptors?.map((descriptor) => |
| AlternateLink({ rel: 'alternate', hrefLang: locale, descriptor }) |
| ) |
| ) |
| : null, |
| media |
| ? Object.entries(media).flatMap(([mediaName, descriptors]) => |
| descriptors?.map((descriptor) => |
| AlternateLink({ rel: 'alternate', media: mediaName, descriptor }) |
| ) |
| ) |
| : null, |
| types |
| ? Object.entries(types).flatMap(([type, descriptors]) => |
| descriptors?.map((descriptor) => |
| AlternateLink({ rel: 'alternate', type, descriptor }) |
| ) |
| ) |
| : null, |
| ]) |
| } |
|
|
