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<?php |
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namespace Hyde\Framework\Modules\Metadata; |
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use Hyde\Framework\Concerns\HydePage; |
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use Hyde\Framework\Helpers\Meta; |
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use Hyde\Framework\Models\Pages\MarkdownPost; |
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use Hyde\Framework\Modules\Metadata\Models\BaseMetadataElement; |
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use Illuminate\Contracts\Support\Htmlable; |
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/** |
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* Holds the metadata tags for a page or the site model. |
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* |
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* @see \Hyde\Framework\Testing\Feature\MetadataTest |
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*/ |
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class MetadataBag implements Htmlable |
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{ |
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protected HydePage $page; |
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public array $links = []; |
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public array $metadata = []; |
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public array $properties = []; |
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public array $generics = []; |
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public function __construct(?HydePage $page = null) |
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{ |
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if ($page) { |
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$this->page = $page; |
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$this->generate(); |
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} |
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} |
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public function toHtml(): string |
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{ |
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return $this->render(); |
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} |
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public function render(): string |
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{ |
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return implode("\n", $this->get()); |
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} |
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public function get(): array |
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{ |
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return array_merge( |
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$this->getPrefixedArray('links'), |
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$this->getPrefixedArray('metadata'), |
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$this->getPrefixedArray('properties'), |
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$this->getPrefixedArray('generics') |
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); |
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} |
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public function add(BaseMetadataElement|string $item): static |
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{ |
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if ($item instanceof Models\LinkElement) { |
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$this->links[$item->uniqueKey()] = $item; |
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} elseif ($item instanceof Models\MetadataElement) { |
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$this->metadata[$item->uniqueKey()] = $item; |
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} elseif ($item instanceof Models\OpenGraphElement) { |
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$this->properties[$item->uniqueKey()] = $item; |
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} else { |
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$this->generics[] = $item; |
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} |
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return $this; |
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} |
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protected function generate(): void |
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{ |
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$this->addDynamicPageMetadata($this->page); |
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} |
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protected function addDynamicPageMetadata(HydePage $page): void |
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{ |
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if ($page->has('canonicalUrl')) { |
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$this->add(Meta::link('canonical', $page->get('canonicalUrl'))); |
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} |
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if ($page->has('title')) { |
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$this->add(Meta::name('twitter:title', $page->htmlTitle())); |
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$this->add(Meta::property('title', $page->htmlTitle())); |
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} |
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if ($page instanceof MarkdownPost) { |
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$this->addMetadataForMarkdownPost($page); |
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} |
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} |
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protected function addMetadataForMarkdownPost(MarkdownPost $page): void |
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{ |
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$this->addPostMetadataIfExists($page, 'description'); |
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$this->addPostMetadataIfExists($page, 'author'); |
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$this->addPostMetadataIfExists($page, 'category', 'keywords'); |
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$this->addPostMetadataIfExists($page, 'canonicalUrl', 'url'); |
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if ($page->has('canonicalUrl')) { |
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$this->add(Meta::property('url', $page->get('canonicalUrl'))); |
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} |
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if ($page->has('date')) { |
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$this->add(Meta::property('og:article:published_time', $page->date->datetime)); |
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} |
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if ($page->has('image')) { |
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$this->add(Meta::property('image', $this->resolveImageLink($page->get('image')))); |
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} |
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$this->add(Meta::property('type', 'article')); |
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} |
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protected function addPostMetadataIfExists(MarkdownPost $page, string $property, ?string $name = null): void |
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{ |
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if ($page->has($property)) { |
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$this->add(Meta::name($name ?? $property, $page->get($property))); |
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} |
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} |
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protected function getPrefixedArray(string $group): array |
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{ |
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$array = []; |
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foreach ($this->{$group} as $key => $value) { |
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$array[$group.':'.$key] = $value; |
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} |
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return $array; |
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} |
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protected function resolveImageLink(string $image): string |
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{ |
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// Since this is run before the page is rendered, we don't have the currentPage property |
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// but since we know that this is for a blog post we know what the property will be |
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// since Hyde does not currently support custom Blog post output directories. |
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return str_starts_with($image, 'http') ? $image : "../$image"; |
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} |
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} |
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