133 lines
4.9 KiB
PHP
133 lines
4.9 KiB
PHP
<?php
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namespace App\Http\Controllers\Front;
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use App\Http\Controllers\Controller;
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use App\Models\Post;
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use GrahamCampbell\Markdown\Facades\Markdown;
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use Illuminate\Http\Request;
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use Symfony\Component\DomCrawler\Crawler;
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class FrontPostController extends Controller
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{
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public function index(Request $request, $slug)
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{
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$post = Post::where('slug', $slug)->where('status', 'publish')->first();
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if (is_null($post)) {
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return abort(404);
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}
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$content = Markdown::convert($post->body)->getContent();
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//dd($content);
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$content = $this->injectBootstrapClasses($content);
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$content = $this->injectTableOfContents($content);
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$content = $this->injectFeaturedImage($post, $content);
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return view('front.single_post', compact('post', 'content'));
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}
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private function injectBootstrapClasses($content)
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{
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$crawler = new Crawler($content);
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$crawler->filter('h1')->each(function (Crawler $node) {
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$node->getNode(0)->setAttribute('class', trim($node->attr('class').' display-6 fw-bolder mt-3 mb-4'));
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});
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$crawler->filter('h2')->each(function (Crawler $node) {
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$node->getNode(0)->setAttribute('class', trim($node->attr('class').'h4 mb-3'));
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});
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$crawler->filter('h3')->each(function (Crawler $node) {
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$node->getNode(0)->setAttribute('class', trim($node->attr('class').'h6 mb-2'));
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});
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$crawler->filter('p')->each(function (Crawler $pNode) {
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$precedingHeaders = $pNode->previousAll()->filter('h2');
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// If there are no preceding <h2> tags, just process the <p>
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if (! $precedingHeaders->count()) {
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$existingClasses = $pNode->attr('class');
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$newClasses = trim($existingClasses.' mt-2 mb-4');
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$pNode->getNode(0)->setAttribute('class', $newClasses);
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return;
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}
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$precedingHeader = $precedingHeaders->first();
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if (trim($precedingHeader->text()) !== 'FAQs') {
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$existingClasses = $pNode->attr('class');
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$newClasses = trim($existingClasses.' mt-2 mb-4');
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$pNode->getNode(0)->setAttribute('class', $newClasses);
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}
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if (strpos($pNode->text(), 'Q:') === 0) {
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$currentClasses = $pNode->attr('class');
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$newClasses = trim($currentClasses.' fw-bold');
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$pNode->getNode(0)->setAttribute('class', $newClasses);
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}
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});
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$crawler->filter('ul')->each(function (Crawler $node) {
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$node->getNode(0)->setAttribute('class', trim($node->attr('class').'py-2'));
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});
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$crawler->filter('ol')->each(function (Crawler $node) {
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$node->getNode(0)->setAttribute('class', trim($node->attr('class').'py-2'));
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});
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// Convert the modified DOM back to string
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$modifiedContent = '';
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foreach ($crawler as $domElement) {
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$modifiedContent .= $domElement->ownerDocument->saveHTML($domElement);
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}
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return $modifiedContent;
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}
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private function injectTableOfContents($html)
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{
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$crawler = new Crawler($html);
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// Create the Table of Contents
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$toc = '<div class="p-3 rounded-3 bg-light mb-3"><ol>';
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$crawler->filter('h2')->each(function (Crawler $node, $i) use (&$toc) {
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$content = $node->text();
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$id = 'link-'.$i; // Creating a simple id based on the index
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$node->getNode(0)->setAttribute('id', $id); // Set the id to the h2 tag
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$toc .= "<li class=\"py-1\"><a class=\"text-decoration-none hover-text-decoration-underline\" href='#{$id}'>{$content}</a></li>";
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});
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$toc .= '</ol></div>';
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// Insert TOC after h1
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$domDocument = $crawler->getNode(0)->ownerDocument;
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$fragment = $domDocument->createDocumentFragment();
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$fragment->appendXML($toc);
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$h1Node = $crawler->filter('h1')->getNode(0);
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$h1Node->parentNode->insertBefore($fragment, $h1Node->nextSibling);
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// Get the updated HTML
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$updatedHtml = $crawler->filter('body')->html();
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return $updatedHtml;
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}
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private function injectFeaturedImage($post, $content)
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{
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if (! is_empty($post->featured_image)) {
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$featured_image_alt = strtolower($post->short_title);
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$featured_image_alt_caps = strtoupper($post->short_title);
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$featured_image = "<div class=\"w-100 d-flex justify-content-center\"><figure class=\"text-center\"><img decoding=\"async\" class=\"img-fluid rounded mb-2 shadow\" src=\"{$post->featured_image_cdn}\" alt=\"{$featured_image_alt}\"><figcaption class=\"text-secondary small\">{$featured_image_alt_caps}</figcaption></figure></div>";
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$content = preg_replace('/(<\/h1>)/', '$1'.$featured_image, $content, 1);
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}
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return $content;
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}
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}
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