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<?php |
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namespace smtech\StMarksSearch; |
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use Exception; |
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/** |
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* Abstract class defining a search domain |
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* |
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* Includes a basic constructor and a reusable sorting method. |
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* |
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* @author Seth Battis <[email protected]> |
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*/ |
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abstract class AbstractSearchDomain |
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{ |
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use RequireParameter; |
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/** |
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* Human-readable name of the search domain |
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* |
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* Ideally, this is loaded dynamically from the domain via API -- and any |
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* dynamic result will override any preset configuration. |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* URL of the search domain's home page |
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* |
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* Ideally, this is loaded or constructed dynamically via API -- and any |
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* dynamic result will override any preset configuration. |
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* @var string |
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*/ |
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protected $url; |
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/** |
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* URL of the search domain's icon |
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* |
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* This will be rendered 16x16 pixels when displayed. |
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* @var string |
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*/ |
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protected $icon; |
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/** |
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* Construct a SearchDomain |
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* |
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* Parameters are passed to this constuctor as an associative array of values, including, at a minimum: |
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* |
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* ``` |
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* [ |
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* 'name' => 'A human-readable name for the domain', |
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* 'url' => 'URL of the home page of the domain' |
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* ] |
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* ``` |
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* |
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* Subclasses may (and will) add additional required parameters to that |
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* list. |
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* |
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* @param mixed[] $params |
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* |
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* @throws Exception If `$params['url']` is not a valid URL or |
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* `$params['name']` is empty. |
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*/ |
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public function __construct($params) |
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{ |
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$this->requireParameter($params, 'url'); |
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$this->setUrl($params['url']); |
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$this->requireParameter($params, 'name'); |
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$this->setName($params['name']); |
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if (isset($params['icon'])) { |
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$this->setIcon($params['icon']); |
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} |
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} |
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/** |
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* Update the URL of the search domain |
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* |
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* @used-by AbstractSearchDomain::__construct() |
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* @param string $url |
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* @throws Exception If `$url` is empty or is not a valid URL |
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*/ |
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protected function setUrl($url) |
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{ |
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assert( |
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!empty($url) && |
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filter_var($url, FILTER_VALIDATE_URL) !== false, |
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new Exception("Valid url parameter required, received:" . PHP_EOL . print_r($url, true)) |
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); |
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$this->url = $url; |
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} |
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/** |
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* Set the name of the search domain |
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* |
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* @used-by AbstractSearchDomain::__construct() |
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* @param string $name |
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* @throws Exception If `$name` is empty |
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*/ |
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protected function setName($name) |
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{ |
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assert( |
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!empty($name), |
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new Exception('Non-empty parameter required, received:' . PHP_EOL . print_r($name, true)) |
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); |
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$this->name = $name; |
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} |
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/** |
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* Set the icon URL for the search domain |
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* |
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* Does nothing if `$url` is not a valid URL |
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* |
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* @used-by AbstractSearchDomain::__construct() |
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* @param string $icon |
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*/ |
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protected function setIcon($icon) |
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{ |
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if (filter_var($icon, FILTER_VALIDATE_URL)) { |
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$this->icon = $icon; |
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} |
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} |
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/** |
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* Search within this domain |
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* |
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* @param string $query |
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* @return SearchResult[] Ordered by descending relevance |
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*/ |
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abstract public function search($query); |
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/** |
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* Sort into order of descending relevance |
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* |
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* @param SearchResult[] $results |
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* @return void |
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*/ |
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protected function sortByRelevance(&$results) |
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{ |
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usort($results, function (SearchResult $a, SearchResult $b) { |
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if ($a->getRelevance()->getScore() < $b->getRelevance()->getScore()) { |
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return 1; |
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} elseif ($a->getRelevance()->getScore() > $b->getRelevance()->getScore()) { |
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return -1; |
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} else { |
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return 0; |
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} |
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}); |
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} |
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/** |
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* Human-readable name of the search domain |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* URL of the home page of the search domain |
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* |
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* @return string |
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*/ |
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public function getUrl() |
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{ |
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return $this->url; |
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} |
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/** |
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* URL of the icon of this search domain |
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* |
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* @return string |
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*/ |
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public function getIcon() |
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{ |
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return $this->icon; |
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} |
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} |
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smtech /
stmarks-search
