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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Hyde\Framework\Features\Metadata; |
| 6 | |
| 7 | use Hyde\Facades\Meta; |
| 8 | use Hyde\Pages\Concerns\HydePage; |
| 9 | use Hyde\Pages\MarkdownPost; |
| 10 | use Hyde\Foundation\Kernel\Hyperlinks; |
| 11 | |
| 12 | use function substr_count; |
| 13 | use function str_repeat; |
| 14 | |
| 15 | class PageMetadataBag extends MetadataBag |
| 16 | { |
| 17 | protected HydePage $page; |
| 18 | |
| 19 | public function __construct(HydePage $page) |
| 20 | { |
| 21 | $this->page = $page; |
| 22 | |
| 23 | $this->generate(); |
| 24 | } |
| 25 | |
| 26 | protected function generate(): void |
| 27 | { |
| 28 | $this->addDynamicPageMetadata($this->page); |
| 29 | } |
| 30 | |
| 31 | protected function addDynamicPageMetadata(HydePage $page): void |
| 32 | { |
| 33 | if ($page->getCanonicalUrl()) { |
| 34 | $this->add(Meta::link('canonical', $page->getCanonicalUrl())); |
| 35 | } |
| 36 | |
| 37 | if ($page->has('description')) { |
| 38 | $this->add(Meta::name('description', $page->data('description'))); |
| 39 | $this->add(Meta::property('description', $page->data('description'))); |
| 40 | } |
| 41 | |
| 42 | if ($page->has('title')) { |
| 43 | $this->add(Meta::name('twitter:title', $page->title())); |
| 44 | $this->add(Meta::property('title', $page->title())); |
| 45 | } |
| 46 | |
| 47 | if ($page instanceof MarkdownPost) { |
| 48 | $this->addMetadataForMarkdownPost($page); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | protected function addMetadataForMarkdownPost(MarkdownPost $page): void |
| 53 | { |
| 54 | $this->addPostMetadataIfExists($page, 'author'); |
| 55 | $this->addPostMetadataIfExists($page, 'category', 'keywords'); |
| 56 | |
| 57 | if ($page->getCanonicalUrl()) { |
| 58 | $this->add(Meta::name('url', $page->getCanonicalUrl())); |
| 59 | $this->add(Meta::property('url', $page->getCanonicalUrl())); |
| 60 | } |
| 61 | |
| 62 | if ($page->has('date')) { |
| 63 | $this->add(Meta::property('og:article:published_time', $page->date->datetime)); |
| 64 | } |
| 65 | |
| 66 | if ($page->has('image')) { |
| 67 | $this->add(Meta::property('image', $this->resolveImageLink((string) $page->data('image')))); |
| 68 | } |
| 69 | |
| 70 | $this->add(Meta::property('type', 'article')); |
| 71 | } |
| 72 | |
| 73 | protected function addPostMetadataIfExists(MarkdownPost $page, string $property, ?string $name = null): void |
| 74 | { |
| 75 | if ($page->has($property)) { |
| 76 | $this->add(Meta::name($name ?? $property, (string) $page->data($property))); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | protected function resolveImageLink(string $image): string |
| 81 | { |
| 82 | // Since this is run before the page is rendered, we don't have the currentPage property. |
| 83 | // So we need to run some of the same calculations here to resolve the image path link. |
| 84 | return Hyperlinks::isRemote($image) ? $image : $this->calculatePathTraversal().$image; |
| 85 | } |
| 86 | |
| 87 | private function calculatePathTraversal(): string |
| 88 | { |
| 89 | return str_repeat('../', substr_count(MarkdownPost::outputDirectory().'/'.$this->page->identifier, '/')); |
| 90 | } |
| 91 | } |