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<?php |
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namespace W2w\Laravel\Apie\Plugins\Illuminate\Eloquent; |
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use Generator; |
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class ArrayRemapper |
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{ |
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public static function remap(array $mapping, array $input): array |
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{ |
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$staticMapping = []; |
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$dynamicMapping = []; |
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foreach (self::flattenArray($mapping) as $key => $value) { |
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if (strpos($key, '*') !== false) { |
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$dynamicMapping[self::toRegex($key)] = self::toReplacement($value); |
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} else { |
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$staticMapping[$key] = $value; |
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} |
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} |
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$result = []; |
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foreach (self::visit($input, $staticMapping, $dynamicMapping) as $key => $value) { |
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$keys = explode('.', $key); |
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self::set($result, $keys, $value); |
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} |
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return $result; |
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} |
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public static function reverseRemap(array $mapping, array $input): array |
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{ |
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$staticMapping = []; |
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$dynamicMapping = []; |
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foreach (self::flattenArray($mapping) as $value => $key) { |
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if (strpos($key, '*') !== false) { |
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$dynamicMapping[self::toRegex($key)] = self::toReplacement($value); |
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} else { |
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$staticMapping[$key] = $value; |
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} |
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} |
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$result = []; |
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foreach (self::visit($input, $staticMapping, $dynamicMapping) as $key => $value) { |
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$keys = explode('.', $key); |
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self::set($result, $keys, $value); |
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} |
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return $result; |
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} |
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private static function set(array& $input, array $keys, $value) { |
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$ptr = &$input; |
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while (count($keys) > 1) { |
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$key = array_shift($keys); |
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if (!array_key_exists($key, $ptr)) { |
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$ptr[$key] = []; |
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} |
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$ptr = &$ptr[$key]; |
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} |
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$key = array_shift($keys); |
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$ptr[$key] = $value; |
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} |
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private static function flattenArray(array $input, string $prefixKey = ''): Generator |
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{ |
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foreach ($input as $key => $value) { |
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if (is_array($value)) { |
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yield from self::flattenArray($value, $prefixKey . '.' . $key); |
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continue; |
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} |
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yield ltrim($prefixKey . '.' . $key, '.') => $value; |
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} |
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} |
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private static function visit(array& $input, array $staticMapping, array $dynamicMapping): Generator |
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{ |
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$input = iterator_to_array(self::flattenArray($input)); |
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foreach ($input as $key => $value) { |
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if (isset($staticMapping[$key])) { |
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yield $staticMapping[$key] => $value; |
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continue; |
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} |
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foreach ($dynamicMapping as $regex => $result) { |
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if (preg_match($regex, $key)) { |
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$calculatedKey = preg_replace($regex, $result, $key); |
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yield $calculatedKey => $value; |
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break; |
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} |
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} |
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} |
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} |
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private static function toRegex(string $input): string |
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{ |
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return '/^' . str_replace('\\*', '([a-zA-Z0-9_-]+)', preg_quote($input, '/')) . '$/'; |
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} |
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private static function toReplacement(string $input): string |
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{ |
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$counter = 1; |
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return preg_replace_callback( |
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'/' . preg_quote('*', '/') . '/', |
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function () use (&$counter) { |
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$res = '${' . $counter . '}'; |
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$counter++; |
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return $res; |
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}, |
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$input |
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); |
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} |
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} |
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pjordaan /
laravel-apie
