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<?php |
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namespace Hyde\Framework\Services; |
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use Hyde\Framework\Concerns\InteractsWithDirectories; |
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use Hyde\Framework\Hyde; |
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use Hyde\Framework\Models\Pages\DocumentationPage; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Str; |
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use JetBrains\PhpStorm\ArrayShape; |
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/** |
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* @internal Generate a JSON file that can be used as a search index for documentation pages. |
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* |
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* @see \Hyde\Framework\Testing\Feature\Services\DocumentationSearchServiceTest |
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*/ |
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final class DocumentationSearchService |
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{ |
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use InteractsWithDirectories; |
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public Collection $searchIndex; |
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public static string $filePath = '_site/docs/search.json'; |
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public static function generate(): self |
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{ |
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return (new self())->execute(); |
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} |
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public static function generateSearchPage(): string |
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{ |
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$outputDirectory = Hyde::getSiteOutputPath(DocumentationPage::getOutputDirectory()); |
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self::needsDirectory(($outputDirectory)); |
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file_put_contents( |
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"$outputDirectory/search.html", |
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view('hyde::pages.documentation-search')->render() |
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); |
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return $outputDirectory; |
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} |
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public function __construct() |
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{ |
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$this->searchIndex = new Collection(); |
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self::$filePath = Hyde::pathToRelative(Hyde::getSiteOutputPath( |
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DocumentationPage::getOutputDirectory().'/search.json' |
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)); |
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} |
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public function execute(): self |
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{ |
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return $this->run()->save(); |
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} |
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public function run(): self |
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{ |
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/** @var DocumentationPage $page */ |
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foreach (DocumentationPage::all() as $page) { |
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if (! in_array($page->identifier, config('docs.exclude_from_search', []))) { |
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$this->searchIndex->push( |
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$this->generatePageEntry($page) |
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); |
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} |
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} |
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return $this; |
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} |
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#[ArrayShape(['slug' => 'string', 'title' => 'string', 'content' => 'string', 'destination' => 'string'])] |
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public function generatePageEntry(DocumentationPage $page): array |
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{ |
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return [ |
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'slug' => basename($page->identifier), |
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'title' => $page->title, |
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'content' => trim($this->getSearchContentForDocument($page)), |
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'destination' => $this->getDestinationForSlug(basename($page->identifier)), |
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]; |
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} |
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protected function save(): self |
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{ |
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$this->needsDirectory(Hyde::path(str_replace('/search.json', '', self::$filePath))); |
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file_put_contents(Hyde::path(self::$filePath), $this->searchIndex->toJson()); |
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return $this; |
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} |
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/** |
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* There are a few ways we could go about this. The goal is to allow the user |
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* to run a free-text search to find relevant documentation pages. |
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* |
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* The easiest way to do this is by adding the Markdown body to the search index. |
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* But this is of course not ideal as it may take an incredible amount of space |
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* for large documentation sites. The Hyde docs weight around 80kb of JSON. |
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* |
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* Another option is to assemble all the headings in a document and use that |
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* for the search basis. A truncated version of the body could also be included. |
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* |
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* A third option which might be the most space efficient (besides from just |
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* adding titles, which doesn't offer much help to the user since it is just |
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* a filterable sidebar at that point), would be to search for keywords |
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* in the document. This would however add complexity as well as extra |
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* computing time. |
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* |
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* Benchmarks: (for official Hyde docs) |
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* |
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* Returning $document->body as is: 500ms |
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* Returning $document->body as Str::markdown(): 920ms + 10ms for regex |
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*/ |
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protected function getSearchContentForDocument(DocumentationPage $page): string |
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{ |
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// This is compiles the Markdown body into HTML, and then strips out all |
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// HTML tags to get a plain text version of the body. This takes a long |
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// site, but is the simplest implementation I've found so far. |
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return preg_replace('/<(.|\n)*?>/', ' ', Str::markdown($page->markdown)); |
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} |
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public function getDestinationForSlug(string $slug): string |
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{ |
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if (config('site.pretty_urls', false) === true) { |
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return $slug !== 'index' ? $slug : ''; |
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} |
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return $slug.'.html'; |
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} |
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} |
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hydephp /
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