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<?php
declare(strict_types=1);
namespace Bakame\Http\StructuredFields\Validation;
use ArrayAccess;
use Bakame\Http\StructuredFields\InvalidOffset;
use Countable;
use Iterator;
use IteratorAggregate;
use Stringable;
use TypeError;
use function array_filter;
use function array_map;
use function count;
use function implode;
use function is_int;
use const ARRAY_FILTER_USE_BOTH;
/**
* @implements IteratorAggregate<array-key,Violation>
* @implements ArrayAccess<array-key,Violation>
*/
final class ViolationList implements IteratorAggregate, Countable, ArrayAccess, Stringable
{
/** @var array<Violation> */
private array $errors = [];
/**
* @param iterable<array-key, Violation> $errors
*/
public function __construct(iterable $errors = [])
{
$this->addAll($errors);
}
public function count(): int
{
return count($this->errors);
}
public function getIterator(): Iterator
{
yield from $this->errors;
}
public function __toString(): string
{
return implode(PHP_EOL, array_map(fn (Violation $e): string => $e->getMessage(), $this->errors));
}
/**
* @return array<array-key, string>
*/
public function summary(): array
{
return array_map(fn (Violation $e): string => $e->getMessage(), $this->errors);
}
public function isEmpty(): bool
{
return [] === $this->errors;
}
public function isNotEmpty(): bool
{
return ! $this->isEmpty();
}
/**
* @param string|int $offset
*/
public function offsetExists(mixed $offset): bool
{
return $this->has($offset);
}
/**
* @param string|int $offset
*
* @return Violation
*/
public function offsetGet(mixed $offset): mixed
{
return $this->get($offset);
}
/**
* @param string|int $offset
*/
public function offsetUnset(mixed $offset): void
{
unset($this->errors[$offset]);
}
/**
* @param string|int|null $offset
* @param Violation $value
*/
public function offsetSet(mixed $offset, mixed $value): void
{
if (null === $offset) {
throw new TypeError('null can not be used as a valid offset value.');
}
$this->add($offset, $value);
}
public function has(string|int $offset): bool
{
if (is_int($offset)) {
return null !== $this->filterIndex($offset);
}
return array_key_exists($offset, $this->errors);
}
public function get(string|int $offset): Violation
{
return $this->errors[$this->filterIndex($offset) ?? throw InvalidOffset::dueToIndexNotFound($offset)];
}
public function add(string|int $offset, Violation $error): void
{
$this->errors[$offset] = $error;
}
/**
* @param iterable<array-key, Violation> $errors
*/
public function addAll(iterable $errors): void
{
foreach ($errors as $offset => $error) {
$this->add($offset, $error);
}
}
private function filterIndex(string|int $index, int|null $max = null): string|int|null
{
if (!is_int($index)) {
return $index;
}
$max ??= count($this->errors);
return match (true) {
[] === $this->errors,
0 > $max + $index,
0 > $max - $index - 1 => null,
0 > $index => $max + $index,
default => $index,
};
}
/**
* @param callable(Violation, array-key): bool $callback
*/
public function filter(callable $callback): self
{
return new self(array_filter($this->errors, $callback, ARRAY_FILTER_USE_BOTH));
}
public function toException(): Violation
{
return new Violation((string) $this);
}
}
|
