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<?php

declare (strict_types=1);
namespace WordPress\AiClient\Providers\DTO;

use WordPress\AiClient\Common\AbstractDataTransferObject;
use WordPress\AiClient\Common\Exception\InvalidArgumentException;
use WordPress\AiClient\Providers\Models\DTO\ModelMetadata;
/**
 * Represents metadata about a provider and its available models.
 *
 * This class combines provider information with the models that
 * the provider offers, facilitating model discovery and selection.
 *
 * @since 0.1.0
 *
 * @phpstan-import-type ProviderMetadataArrayShape from ProviderMetadata
 * @phpstan-import-type ModelMetadataArrayShape from ModelMetadata
 *
 * @phpstan-type ProviderModelsMetadataArrayShape array{
 *     provider: ProviderMetadataArrayShape,
 *     models: list<ModelMetadataArrayShape>
 * }
 *
 * @extends AbstractDataTransferObject<ProviderModelsMetadataArrayShape>
 */
class ProviderModelsMetadata extends AbstractDataTransferObject
{
    public const KEY_PROVIDER = 'provider';
    public const KEY_MODELS = 'models';
    /**
     * @var ProviderMetadata The provider metadata.
     */
    protected \WordPress\AiClient\Providers\DTO\ProviderMetadata $provider;
    /**
     * @var list<ModelMetadata> The available models.
     */
    protected array $models;
    /**
     * Constructor.
     *
     * @since 0.1.0
     *
     * @param ProviderMetadata $provider The provider metadata.
     * @param list<ModelMetadata> $models The available models.
     *
     * @throws InvalidArgumentException If models is not a list.
     */
    public function __construct(\WordPress\AiClient\Providers\DTO\ProviderMetadata $provider, array $models)
    {
        if (!array_is_list($models)) {
            throw new InvalidArgumentException('Models must be a list array.');
        }
        $this->provider = $provider;
        $this->models = $models;
    }
    /**
     * Creates a deep clone of this metadata.
     *
     * Clones the provider metadata and all model metadata objects
     * to ensure the cloned instance is independent of the original.
     *
     * @since 0.4.2
     */
    public function __clone()
    {
        // Clone provider metadata
        $this->provider = clone $this->provider;
        // Deep clone models array (ModelMetadata has __clone)
        $clonedModels = [];
        foreach ($this->models as $model) {
            $clonedModels[] = clone $model;
        }
        $this->models = $clonedModels;
    }
    /**
     * Gets the provider metadata.
     *
     * @since 0.1.0
     *
     * @return ProviderMetadata The provider metadata.
     */
    public function getProvider(): \WordPress\AiClient\Providers\DTO\ProviderMetadata
    {
        return $this->provider;
    }
    /**
     * Gets the available models.
     *
     * @since 0.1.0
     *
     * @return list<ModelMetadata> The available models.
     */
    public function getModels(): array
    {
        return $this->models;
    }
    /**
     * {@inheritDoc}
     *
     * @since 0.1.0
     */
    public static function getJsonSchema(): array
    {
        return ['type' => 'object', 'properties' => [self::KEY_PROVIDER => \WordPress\AiClient\Providers\DTO\ProviderMetadata::getJsonSchema(), self::KEY_MODELS => ['type' => 'array', 'items' => ModelMetadata::getJsonSchema(), 'description' => 'The available models for this provider.']], 'required' => [self::KEY_PROVIDER, self::KEY_MODELS]];
    }
    /**
     * {@inheritDoc}
     *
     * @since 0.1.0
     *
     * @return ProviderModelsMetadataArrayShape
     */
    public function toArray(): array
    {
        return [self::KEY_PROVIDER => $this->provider->toArray(), self::KEY_MODELS => array_map(static fn(ModelMetadata $model): array => $model->toArray(), $this->models)];
    }
    /**
     * {@inheritDoc}
     *
     * @since 0.1.0
     */
    public static function fromArray(array $array): self
    {
        static::validateFromArrayData($array, [self::KEY_PROVIDER, self::KEY_MODELS]);
        return new self(\WordPress\AiClient\Providers\DTO\ProviderMetadata::fromArray($array[self::KEY_PROVIDER]), array_map(static fn(array $modelData): ModelMetadata => ModelMetadata::fromArray($modelData), $array[self::KEY_MODELS]));
    }
}