<?php
/**
 * Jetpack (SEO tools module).
 *
 * @package AiRankSuite
 */

declare(strict_types=1);

namespace AiRankSuite\Modules\ImportExport\Adapters;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Jetpack's SEO module is small on purpose: a custom description per page and
 * site-wide title formats built from tokens ("%site_name% | %page_title%")
 * stored as an array per view in `jetpack_seo_titles`.
 */
final class Jetpack extends Adapter {

	public function id(): string {
		return 'jetpack';
	}

	public function label(): string {
		return 'Jetpack SEO';
	}

	public function active(): bool {
		return defined( 'JETPACK__VERSION' );
	}

	protected function post_meta_keys(): array {
		return array( 'advanced_seo_description', '_jetpack_seo_html_title' );
	}

	protected function has_settings(): bool {
		return array() !== $this->option( 'jetpack_seo_titles' ) || '' !== (string) get_option( 'jetpack_seo_front_page_description', '' );
	}

	public function post_record( int $post_id ): array {
		return $this->clean(
			array(
				'title' => $this->vars( $this->meta( $post_id, '_jetpack_seo_html_title' ) ),
				'desc'  => $this->meta( $post_id, 'advanced_seo_description' ),
			)
		);
	}

	/**
	 * Jetpack stores a title as an ordered list of tokens, not as a string:
	 * [{type: site_name}, {type: separator, value: '|'}, {type: post_title}].
	 */
	private function tokens( array $format ): string {
		$parts = array();
		foreach ( $format as $token ) {
			$type = is_array( $token ) ? (string) ( $token['type'] ?? '' ) : '';
			$parts[] = match ( $type ) {
				'site_name'        => '%sitename%',
				'tagline'          => '%tagline%',
				'post_title',
				'page_title'       => '%title%',
				'group_title',
				'archive_title'    => '%term%',
				'date'             => '%date%',
				'string'           => trim( (string) ( $token['value'] ?? '' ) ),
				'separator'        => '%sep%',
				default            => '',
			};
		}
		return trim( (string) preg_replace( '/\s{2,}/', ' ', implode( ' ', array_filter( $parts ) ) ) );
	}

	public function settings(): array {
		$titles = $this->option( 'jetpack_seo_titles' );
		$front  = (string) get_option( 'jetpack_seo_front_page_description', '' );
		if ( empty( $titles ) && '' === $front ) {
			return array();
		}
		$out = array( 'home_desc' => $front );
		if ( ! empty( $titles['front_page'] ) ) {
			$out['home_title'] = $this->tokens( (array) $titles['front_page'] );
		}
		if ( ! empty( $titles['posts'] ) ) {
			$out['templates'] = array( 'post' => array( 'title' => $this->tokens( (array) $titles['posts'] ), 'desc' => '' ) );
		}
		if ( ! empty( $titles['pages'] ) ) {
			$out['templates']['page'] = array( 'title' => $this->tokens( (array) $titles['pages'] ), 'desc' => '' );
		}
		if ( ! empty( $titles['groups'] ) ) {
			$out['taxonomy_templates'] = array( 'category' => array( 'title' => $this->tokens( (array) $titles['groups'] ), 'desc' => '' ) );
		}
		return $out;
	}
}