<?php

declare( strict_types=1 );

namespace AcezSeo\Data;

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

/**
 * Stores global per-post-type settings (Organization/schema defaults, templates) in wp_options.
 */
final class SettingsRepository implements SettingsRepositoryInterface
{
	private const OPTION_PREFIX = 'acez_seo_settings_';

	/**
	 * @return array<string, mixed>
	 */
	public function get( string $post_type ): array
	{
		$stored = get_option( self::option_name( $post_type ), array() );

		return wp_parse_args( is_array( $stored ) ? $stored : array(), self::defaults() );
	}

	/**
	 * @param array<string, mixed> $settings
	 */
	public function update( string $post_type, array $settings ): bool
	{
		$sanitized = self::sanitize( wp_parse_args( $settings, self::defaults() ) );

		return update_option( self::option_name( $post_type ), $sanitized );
	}

	private static function option_name( string $post_type ): string
	{
		return self::OPTION_PREFIX . sanitize_key( $post_type );
	}

	/**
	 * @return array<string, mixed>
	 */
	private static function defaults(): array
	{
		return array(
			'schema_enabled'        => true,
			// 'schema_type' used to sit here as an early-scaffold default that was
			// never read anywhere — removed in M66; the per-POST override
			// (MetaFields::SCHEMA_TYPE_OVERRIDE) is the real mechanism now.
			'title_template'        => '%post_title% %sep% %site_name%',
			'description_template'  => '%post_excerpt%',
			'robots_index'          => true,
			'robots_follow'         => true,
			'author_schema_enabled' => true,
			'og_image_id'           => 0,
			'og_acf_field'          => '',
		);
	}

	/**
	 * @param array<string, mixed> $settings
	 *
	 * @return array<string, mixed>
	 */
	private static function sanitize( array $settings ): array
	{
		return array(
			'schema_enabled'        => (bool) $settings['schema_enabled'],
			'title_template'        => \AcezSeo\Support\TemplateSanitizer::sanitize_line( $settings['title_template'] ), // NOT sanitize_text_field — it eats %hex pairs like the %ac in %acf: (M49)
			'description_template'  => \AcezSeo\Support\TemplateSanitizer::sanitize_multiline( $settings['description_template'] ),
			'robots_index'          => (bool) $settings['robots_index'],
			'robots_follow'         => (bool) $settings['robots_follow'],
			'author_schema_enabled' => (bool) $settings['author_schema_enabled'],
			'og_image_id'           => absint( $settings['og_image_id'] ),
			// NOT sanitize_text_field — this field holds an ACF token like
			// "%acf:my_field%" and core would eat "%ac" as a percent-encoded octet (M49).
			'og_acf_field'          => \AcezSeo\Support\TemplateSanitizer::sanitize_line( $settings['og_acf_field'] ?? '' ),
		);
	}
}