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<?php |
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declare(strict_types=1); |
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namespace Rinvex\University; |
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use Closure; |
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class UniversityLoader |
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{ |
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/** |
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* The universities array. |
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* |
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* @var array |
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*/ |
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protected static $universities; |
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/** |
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* Get the university by slug. |
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* |
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* @param string $slug |
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* @param bool $hydrate |
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* |
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* @throws \Rinvex\University\UniversityLoaderException |
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* |
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* @return \Rinvex\University\University|array |
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*/ |
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public static function university($slug, $hydrate = true) |
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{ |
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if (! isset(static::$universities[$slug])) { |
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$university = current(glob(__DIR__."/../resources/*/{$slug}.json")); |
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static::$universities[$slug] = $university ? json_decode(static::getFile($university), true) : null; |
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} |
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if (! isset(static::$universities[$slug])) { |
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throw UniversityLoaderException::invalidUniversity(); |
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} |
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return $hydrate ? new University(static::$universities[$slug]) : static::$universities[$slug]; |
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} |
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/** |
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* Get universities for the given country. |
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* |
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* @param string|null $countryCode |
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* |
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* @return array |
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*/ |
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public static function universities($countryCode = null) |
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{ |
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if (! isset(static::$universities['names'])) { |
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static::$universities['names'] = json_decode(static::getFile(__DIR__.'/../resources/names.json'), true); |
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} |
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return is_null($countryCode) ? static::$universities['names'] : static::$universities['names'][$countryCode] ?? null; |
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} |
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/** |
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* Get an item from an array or object using "dot" notation. |
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* |
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* @param mixed $target |
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* @param string|array $key |
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* @param mixed $default |
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* |
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* @return mixed |
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*/ |
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protected static function get($target, $key, $default = null) |
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{ |
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if (is_null($key)) { |
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return $target; |
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} |
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$key = is_array($key) ? $key : explode('.', $key); |
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while (($segment = array_shift($key)) !== null) { |
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if ($segment === '*') { |
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if (! is_array($target)) { |
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return $default instanceof Closure ? $default() : $default; |
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} |
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$result = static::pluck($target, $key); |
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return in_array('*', $key) ? static::collapse($result) : $result; |
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} |
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if (is_array($target) && array_key_exists($segment, $target)) { |
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$target = $target[$segment]; |
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} elseif (is_object($target) && isset($target->{$segment})) { |
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$target = $target->{$segment}; |
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} else { |
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return $default instanceof Closure ? $default() : $default; |
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} |
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} |
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return $target; |
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} |
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/** |
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* Pluck an array of values from an array. |
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* |
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* @param array $array |
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* @param string|array $value |
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* @param string|array|null $key |
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* |
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* @return array |
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*/ |
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protected static function pluck($array, $value, $key = null) |
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{ |
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$results = []; |
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$value = is_string($value) ? explode('.', $value) : $value; |
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$key = is_null($key) || is_array($key) ? $key : explode('.', $key); |
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foreach ($array as $item) { |
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$itemValue = static::get($item, $value); |
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// If the key is "null", we will just append the value to the array and keep |
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// looping. Otherwise we will key the array using the value of the key we |
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// received from the developer. Then we'll return the final array form. |
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if (is_null($key)) { |
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$results[] = $itemValue; |
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} else { |
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$itemKey = static::get($item, $key); |
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$results[$itemKey] = $itemValue; |
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} |
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} |
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return $results; |
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} |
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/** |
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* Collapse an array of arrays into a single array. |
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* |
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* @param array $array |
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* |
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* @return array |
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*/ |
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protected static function collapse($array) |
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{ |
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$results = []; |
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foreach ($array as $values) { |
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if (! is_array($values)) { |
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continue; |
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} |
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$results = array_merge($results, $values); |
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} |
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return $results; |
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} |
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/** |
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* Get contents of the given file path. |
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* |
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* @param string $filePath |
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* |
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* @throws \Rinvex\University\UniversityLoaderException |
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* |
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* @return string |
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*/ |
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public static function getFile($filePath) |
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{ |
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if (! file_exists($filePath)) { |
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throw UniversityLoaderException::invalidUniversity(); |
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} |
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return file_get_contents($filePath); |
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} |
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} |
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rinvex /
universities
