<?php

declare (strict_types=1);
namespace Bluehost\Plugin\WP\McpSchema\Server\Tools\DTO;

use Bluehost\Plugin\WP\McpSchema\Common\AbstractDataTransferObject;
use Bluehost\Plugin\WP\McpSchema\Common\Traits\ValidatesRequiredFields;
/**
 * A JSON Schema object defining the expected parameters for the tool.
 *
 * @mcp-domain Server
 * @mcp-subdomain Tools
 * @mcp-version 2025-11-25
 */
class ToolInputSchema extends AbstractDataTransferObject
{
    use ValidatesRequiredFields;
    public const TYPE = 'object';
    /**
     * Wire keys this class models. Anything else is kept in $additionalProperties.
     *
     * @var array<int, string>
     */
    private const KNOWN_KEYS = ['$schema', 'type', 'properties', 'required'];
    /**
     * @var string|null
     */
    protected ?string $schema;
    /**
     * @var 'object'
     */
    protected string $type;
    /**
     * @var array<string, object>|null
     */
    protected ?array $properties;
    /**
     * @var array<string>|null
     */
    protected ?array $required;
    /**
     * Keys carried on the wire that this type does not model. Preserved verbatim so unrecognized fields survive a round trip.
     *
     * @var array<string, mixed>|null
     */
    protected ?array $additionalProperties;
    /**
     * @param string|null $schema
     * @param array<string, object>|null $properties
     * @param array<string>|null $required
     * @param array<string, mixed>|null $additionalProperties
     */
    public function __construct(?string $schema = null, ?array $properties = null, ?array $required = null, ?array $additionalProperties = null)
    {
        $this->type = self::TYPE;
        $this->schema = $schema;
        $this->properties = $properties;
        $this->required = $required;
        $this->additionalProperties = $additionalProperties;
    }
    /**
     * Creates an instance from an array.
     *
     * @param array{
     *     '$schema'?: string|null,
     *     type: 'object',
     *     properties?: array<string, object>|null,
     *     required?: array<string>|null
     * } $data
     * @phpstan-param array<string, mixed> $data
     * @return self
     */
    public static function fromArray(array $data): self
    {
        return new self(self::asStringOrNull($data['$schema'] ?? null), self::asObjectMapOrNull($data['properties'] ?? null), self::asStringArrayOrNull($data['required'] ?? null), self::additionalFields($data, self::KNOWN_KEYS));
    }
    /**
     * Converts the instance to an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(): array
    {
        $result = [];
        if ($this->schema !== null) {
            $result['$schema'] = $this->schema;
        }
        $result['type'] = $this->type;
        $result['properties'] = !empty($this->properties) ? $this->properties : new \stdClass();
        if ($this->required !== null) {
            $result['required'] = $this->required;
        }
        return $result + ($this->additionalProperties ?? []);
    }
    /**
     * @return string|null
     */
    public function getSchema(): ?string
    {
        return $this->schema;
    }
    /**
     * @return 'object'
     */
    public function getType(): string
    {
        return $this->type;
    }
    /**
     * @return array<string, object>|null
     */
    public function getProperties(): ?array
    {
        return $this->properties;
    }
    /**
     * @return array<string>|null
     */
    public function getRequired(): ?array
    {
        return $this->required;
    }
    /**
     * @return array<string, mixed>|null
     */
    public function getAdditionalProperties(): ?array
    {
        return $this->additionalProperties;
    }
}
