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<?php declare(strict_types=1); |
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namespace html_go\model; |
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use DateTimeInterface; |
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use InvalidArgumentException; |
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use html_go\exceptions\InternalException; |
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use html_go\indexing\IndexManager; |
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use html_go\markdown\MarkdownParser; |
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/** |
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* Responsible for creating <code>Content</code> objects ready to be used in templates. |
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* @author Marc L. Veary |
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* @since 1.0 |
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*/ |
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final class ModelFactory |
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{ |
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private Config $config; |
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private MarkdownParser $parser; |
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private IndexManager $manager; |
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/** |
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* ModelFactory constructor. |
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* @param Config $config |
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* @param MarkdownParser $parser Implementation of the |
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* <code>MarkdownParser</code> interface. |
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*/ |
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public function __construct(Config $config, MarkdownParser $parser, IndexManager $manager) { |
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$this->config = $config; |
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$this->parser = $parser; |
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$this->manager = $manager; |
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} |
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/** |
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* Create a content object (stdClass) from an index object (stdClass). |
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* @param \stdClass $indexElement As obtained from the <code>IndexManager</code> |
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* @return \stdClass |
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*/ |
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public function createContentObject(\stdClass $indexElement): \stdClass { |
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if ($indexElement->section === TAG_SECTION) { |
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$contentObject = $this->createEmptyContentObject(); |
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$contentObject->title = \substr($indexElement->key, \strlen(TAG_SECTION) + 1); |
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} else { |
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$contentObject = $this->loadDataFile($indexElement); |
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$contentObject->body = $this->restoreNewlines($contentObject->body); |
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} |
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$contentObject->key = $indexElement->key; |
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$contentObject->list = []; |
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$contentObject->site = $this->getSiteObject(); |
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if (!empty($indexElement->category)) { |
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$contentObject->category = $this->getCategoryObject($indexElement->category); |
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} |
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if (isset($indexElement->tags)) { |
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$contentObject->tags = $indexElement->tags; |
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} |
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if (!empty($indexElement->date)) { |
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$dt = $this->getContentDate($indexElement->date); |
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$contentObject->date = $dt[0]; |
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$contentObject->timestamp = $dt[1]; |
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} |
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if (empty($contentObject->summary)) { |
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$contentObject->summary = $this->getSummary($contentObject->body); |
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} |
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return $contentObject; |
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} |
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/** |
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* @param string $dateStr |
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* @return array<string> |
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*/ |
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private function getContentDate(string $dateStr): array { |
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if (EMPTY_VALUE === $dateStr) { |
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$date = $timestamp = EMPTY_VALUE; |
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} else { |
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$dt = new \DateTime($dateStr); |
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$date = $dt->format($this->config->getString(Config::KEY_POST_DATE_FMT)); |
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$timestamp = $dt->format(DateTimeInterface::W3C); |
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} |
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return [$date, $timestamp]; |
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} |
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private function getCategoryObject(string $slug): \stdClass { |
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if ($this->manager->elementExists($slug) === false) { |
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throw new \UnexpectedValueException("Element does not exist [$slug]"); // @codeCoverageIgnore |
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} |
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return $this->loadDataFile($this->manager->getElementFromSlugIndex($slug)); |
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} |
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private function getSiteObject(): \stdClass { |
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static $site = null; |
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if (empty($site)) { |
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$site = new \stdClass(); |
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$site->url = $this->config->getString(Config::KEY_SITE_URL); |
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$site->name = $this->config->getString(Config::KEY_SITE_NAME); |
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$site->title = $this->config->getString(Config::KEY_SITE_TITLE); |
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$site->description = $this->config->getString(Config::KEY_SITE_DESCRIPTION); |
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$site->tagline = $this->config->getString(Config::KEY_SITE_TAGLINE); |
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$site->copyright = $this->config->getString(Config::KEY_SITE_COPYRIGHT); |
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$site->language = $this->config->getString(Config::KEY_LANG); |
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$site->theme = $this->config->getString(Config::KEY_THEME_NAME); |
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$site->tpl_engine = $this->config->getString(Config::KEY_TPL_ENGINE); |
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} |
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return $site; |
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} |
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private function loadDataFile(\stdClass $indexElement): \stdClass { |
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if (empty($indexElement->path)) { |
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throw new InvalidArgumentException("Object does not have 'path' property "./** @scrutinizer ignore-type */print_r($indexElement, true)); // @codeCoverageIgnore |
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} |
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$path = $indexElement->path; |
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if (($data = \file_get_contents($path)) === false) { |
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throw new InternalException("file_get_contents() failed opening [$path]"); // @codeCoverageIgnore |
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} |
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if (($contentObject = \json_decode($data)) === null) { |
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throw new InternalException("json_decode returned null decoding [$data] from [$path]"); // @codeCoverageIgnore |
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} |
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return $contentObject; |
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} |
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/** |
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* This is used for tags only as tags don't have an associated file on the |
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* filesystem. |
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* @return \stdClass |
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*/ |
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private function createEmptyContentObject(): \stdClass { |
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$obj = new \stdClass(); |
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$obj->key = EMPTY_VALUE; |
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$obj->section = EMPTY_VALUE; |
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$obj->body = EMPTY_VALUE; |
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$obj->title = EMPTY_VALUE; |
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return $obj; |
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} |
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/** |
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* Returns the summary for the content object. If '<!--more-->' is used within |
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* the body, then this is removed once the summary is obtained. |
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* @param string $body the body. The '<!--more--> removed if found thus passed by reference. |
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* @return string The summary text. If no summary is defined, returns an empty string |
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*/ |
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private function getSummary(string &$body): string { |
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$pos = \strpos($body, '<!--more-->'); |
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if ($pos !== false) { |
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$summary = \substr($body, 0, $pos); |
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$body = \str_replace('<!--more-->', '', $body); |
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return $summary; |
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} |
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return ''; |
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} |
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/** |
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* Newlines must be encoded for PHP functions. So we use '<nl>' to for '\n'. |
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* This method replaces '<nl>' with '\n'. |
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* @param string $text |
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* @return string |
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*/ |
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private function restoreNewlines(string $text): string { |
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return \str_replace('<nl>', '\n', $text); |
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} |
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} |
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ColonelBlimp /
html-go
