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<?php |
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declare(strict_types=1); |
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namespace Rinvex\Language; |
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use Closure; |
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class LanguageLoader |
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{ |
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/** |
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* The languages array. |
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* |
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* @var array |
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*/ |
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protected static $languages; |
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/** |
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* Get the language by it's ISO ISO 639-1 code. |
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* |
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* @param string $code |
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* @param bool $hydrate |
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* |
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* @throws \Rinvex\Language\LanguageLoaderException |
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* |
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* @return \Rinvex\Language\Language|array |
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*/ |
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public static function language($code, $hydrate = true) |
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{ |
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$code = mb_strtolower($code); |
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if (! isset(static::$languages)) { |
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static::$languages = json_decode(static::getFile(__DIR__.'/../resources/languages.json'), true); |
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} |
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if (! isset(static::$languages[$code])) { |
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throw LanguageLoaderException::invalidLanguage(); |
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} |
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return $hydrate ? new Language(static::$languages[$code]) : static::$languages[$code]; |
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} |
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/** |
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* Get all languages. |
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* |
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* @param bool $hydrate |
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* |
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* @return array |
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*/ |
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public static function languages($hydrate = false) |
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{ |
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if (! isset(static::$languages)) { |
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static::$languages = json_decode(static::getFile(__DIR__.'/../resources/languages.json'), true); |
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} |
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return $hydrate ? array_map(function ($language) { |
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return new Language($language); |
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}, static::$languages) : static::$languages; |
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} |
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/** |
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* Get all language scripts. |
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* |
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* @return array |
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*/ |
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public static function scripts() |
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{ |
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if (! isset(static::$languages)) { |
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static::$languages = json_decode(static::getFile(__DIR__.'/../resources/languages.json'), true); |
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} |
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return static::pluck(static::$languages, 'script.name', 'script.iso_15924'); |
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} |
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/** |
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* Get all language families. |
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* |
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* @return array |
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*/ |
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public static function families() |
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{ |
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if (! isset(static::$languages)) { |
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static::$languages = json_decode(static::getFile(__DIR__.'/../resources/languages.json'), true); |
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} |
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return static::pluck(static::$languages, 'family.name', 'family.iso_639_5'); |
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} |
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/** |
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* Filter items by the given key value pair. |
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* |
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* @param string $key |
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* @param mixed $operator |
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* @param mixed $value |
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* |
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* @return array |
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*/ |
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public static function where($key, $operator, $value = null) |
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{ |
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if (func_num_args() === 2) { |
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$value = $operator; |
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$operator = '='; |
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} |
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if (! isset(static::$languages)) { |
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static::$languages = json_decode(static::getFile(__DIR__.'/../resources/languages.json'), true); |
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} |
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return static::filter(static::$languages, static::operatorForWhere($key, $operator, $value)); |
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} |
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/** |
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* Get an operator checker callback. |
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* |
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* @param string $key |
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* @param string $operator |
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* @param mixed $value |
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* |
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* @return \Closure |
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*/ |
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protected static function operatorForWhere($key, $operator, $value) |
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{ |
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return function ($item) use ($key, $operator, $value) { |
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$retrieved = static::get($item, $key); |
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switch ($operator) { |
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default: |
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case '=': |
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case '==': return $retrieved === $value; |
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case '!=': |
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case '<>': return $retrieved !== $value; |
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case '<': return $retrieved < $value; |
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case '>': return $retrieved > $value; |
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case '<=': return $retrieved <= $value; |
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case '>=': return $retrieved >= $value; |
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case '===': return $retrieved === $value; |
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case '!==': return $retrieved !== $value; |
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} |
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}; |
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} |
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/** |
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* Run a filter over each of the items. |
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* |
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* @param array $items |
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* @param callable|null $callback |
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* |
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* @return array |
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*/ |
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protected static function filter($items, callable $callback = null) |
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{ |
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if ($callback) { |
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return array_filter($items, $callback, ARRAY_FILTER_USE_BOTH); |
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} |
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return array_filter($items); |
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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 $filePath |
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* |
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* @throws \Rinvex\Language\LanguageLoaderException |
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* |
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* @return string |
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*/ |
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public static function getFile($filePath) |
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{ |
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if (! file_exists($filePath)) { |
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throw LanguageLoaderException::invalidLanguage(); |
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} |
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return file_get_contents($filePath); |
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} |
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} |
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