<?php
/**
 * REST: general settings.
 *
 * @package Extrova
 */

declare( strict_types=1 );

namespace Extrova\Admin;

use Extrova\Core\Schema;
use Extrova\Core\SettingsRepository;

defined( 'ABSPATH' ) || exit;

/**
 * GET|PUT /settings.
 *
 * @since 1.0.0
 */
final class RestSettingsController {

	/**
	 * Constructor.
	 *
	 * @param SettingsRepository $settings Settings.
	 * @param Schema             $schema   Schema.
	 */
	public function __construct(
		private SettingsRepository $settings,
		private Schema $schema
	) {}

	/**
	 * Registers the routes.
	 */
	public function register_routes(): void {
		register_rest_route(
			RestExtrasController::REST_NAMESPACE,
			'/settings',
			array(
				array(
					'methods'             => \WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_settings' ),
					'permission_callback' => array( Capability::class, 'check' ),
				),
				array(
					'methods'             => \WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_settings' ),
					'permission_callback' => array( Capability::class, 'check' ),
					'args'                => array(
						'settings' => array(
							'type'              => 'object',
							'required'          => true,
							'validate_callback' => array( $this, 'validate_settings' ),
							'sanitize_callback' => static fn( $value ): array => is_array( $value ) ? $value : array(),
						),
					),
				),
			)
		);
	}

	/**
	 * Validates against the JSON Schema.
	 *
	 * @param mixed $value Value.
	 * @return true|\WP_Error
	 */
	public function validate_settings( $value ) {
		$result = rest_validate_value_from_schema( $value, $this->schema->settings_schema(), 'settings' );
		return is_wp_error( $result ) ? $result : true;
	}

	/**
	 * GET.
	 */
	public function get_settings(): \WP_REST_Response {
		return rest_ensure_response( array( 'settings' => $this->settings->get() ) );
	}

	/**
	 * PUT.
	 *
	 * @param \WP_REST_Request $request Request.
	 */
	public function update_settings( \WP_REST_Request $request ): \WP_REST_Response {
		$clean = $this->schema->normalize_settings( (array) $request->get_param( 'settings' ), $this->settings->get() );
		return rest_ensure_response( array( 'settings' => $this->settings->update( $clean ) ) );
	}
}