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<?php
declare(strict_types = 1);
namespace LanguageDetection;
/**
* Class LanguageResult
*
* @copyright Patrick Schur
* @license https://opensource.org/licenses/mit-license.html MIT
* @author Patrick Schur <patrick_schur@outlook.de>
* @package LanguageDetection
*/
class LanguageResult implements \JsonSerializable, \IteratorAggregate, \ArrayAccess
{
const THRESHOLD = .025;
/**
* @var array
*/
private $result = [];
/**
* LanguageResult constructor.
* @param array $result
*/
public function __construct(array $result = [])
{
$this->result = $result;
}
/**
* @param mixed $offset
* @return bool
*/
public function offsetExists($offset): bool
{
return isset($this->result[$offset]);
}
/**
* @param mixed $offset
* @return mixed|null
*/
public function offsetGet($offset): ?float
{
return $this->result[$offset] ?? null;
}
/**
* @param mixed $offset
* @param mixed $value
* @return void
*/
public function offsetSet($offset, $value): void
{
if (null === $offset) {
$this->result[] = $value;
} else {
$this->result[$offset] = $value;
}
}
/**
* @param mixed $offset
*/
public function offsetUnset($offset): void
{
unset($this->result[$offset]);
}
/**
* @return array
*/
public function jsonSerialize(): array
{
return $this->result;
}
/**
* @return string
*/
public function __toString(): string
{
return (string) \key($this->result);
}
/**
* @param \string[] ...$whitelist
* @return LanguageResult
*/
public function whitelist(string ...$whitelist): LanguageResult
{
return new LanguageResult(\array_intersect_key($this->result, \array_flip($whitelist)));
}
/**
* @param \string[] ...$blacklist
* @return LanguageResult
*/
public function blacklist(string ...$blacklist): LanguageResult
{
return new LanguageResult(\array_diff_key($this->result, \array_flip($blacklist)));
}
/**
* @return array
*/
public function close(): array
{
return $this->result;
}
/**
* @return LanguageResult
*/
public function bestResults(): LanguageResult
{
if (!\count($this->result))
{
return new LanguageResult;
}
$first = \array_values($this->result)[0];
return new LanguageResult(\array_filter($this->result, function ($value) use ($first) {
return ($first - $value) <= self::THRESHOLD ? true : false;
}));
}
/**
* @return \ArrayIterator
*/
public function getIterator(): \ArrayIterator
{
return new \ArrayIterator($this->result);
}
/**
* @param int $offset
* @param int|null $length
* @return LanguageResult
*/
public function limit(int $offset, int $length = null): LanguageResult
{
return new LanguageResult(\array_slice($this->result, $offset, $length));
}
}
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