<?php

declare( strict_types=1 );

namespace AcezSeo\Location;

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

final class LocationRulesRepository implements LocationRulesRepositoryInterface
{
	private const OPTION_PREFIX = 'acez_seo_location_rules_';

	public function get( string $post_type ): RuleSet
	{
		$stored = get_option( self::option_name( $post_type ), array() );

		return RuleFactory::from_array( is_array( $stored ) ? $stored : array() );
	}

	/**
	 * @param array<int, array<int, array<string, string>>> $groups_data
	 */
	public function update( string $post_type, array $groups_data ): bool
	{
		return update_option( self::option_name( $post_type ), self::sanitize( $groups_data ) );
	}

	/**
	 * @return string[]
	 */
	public function get_page_template_slugs( string $post_type ): array
	{
		return $this->values_of_type( $post_type, 'page_template' );
	}

	/**
	 * @return string[]
	 */
	public function get_conditional_tags( string $post_type ): array
	{
		return $this->values_of_type( $post_type, 'conditional_tag' );
	}

	/**
	 * @return string[]
	 */
	private function values_of_type( string $post_type, string $rule_type ): array
	{
		$stored = get_option( self::option_name( $post_type ), array() );
		$values = array();

		foreach ( is_array( $stored ) ? $stored : array() as $group_data )
		{
			foreach ( (array) $group_data as $rule_data )
			{
				if ( is_array( $rule_data ) && $rule_type === ( $rule_data['type'] ?? '' ) && '' !== ( $rule_data['value'] ?? '' ) )
				{
					$values[] = (string) $rule_data['value'];
				}
			}
		}

		return $values;
	}

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

	/**
	 * @param array<int, array<int, array<string, string>>> $groups_data
	 *
	 * @return array<int, array<int, array<string, string>>>
	 */
	private static function sanitize( array $groups_data ): array
	{
		$clean_groups = array();

		foreach ( $groups_data as $group_data )
		{
			$clean_rules = array();

			foreach ( (array) $group_data as $rule_data )
			{
				if ( ! is_array( $rule_data ) || ! isset( $rule_data['type'], $rule_data['value'] ) )
				{
					continue;
				}

				$clean_rules[] = array(
					'type'  => sanitize_key( (string) $rule_data['type'] ),
					'value' => sanitize_text_field( (string) $rule_data['value'] ),
				);
			}

			$clean_groups[] = $clean_rules;
		}

		return $clean_groups;
	}
}