<?php

namespace Advanced_Columns\Helpers;

use Advanced_Columns\Core;
use Advanced_Columns\Data\QueryDTO;

class Queries {

	/**
	 * Return the default desktop query.
	 *
	 * @since 1.0.0
	 * @return \Advanced_Columns\Data\QueryDTO
	 */
	public static function default(): QueryDTO {
		$baseQuery = array_filter( self::get(), function( $query ) {
			return true == $query->base;
		} );

		return $baseQuery[ 0 ];
	}

	/**
	 * Return a list of all defined queries.
	 *
	 * @since 1.0.0
	 * @return array<int,QueryDTO>
	 */
	public static function get(): array {
		return Core::instance()->getSettingsManager()->getProvider()->get()->queries;
	}

	public static function getBySlug( string $slug ): ?QueryDTO {
		$queries = self::get();

		$queries = array_values( array_filter( $queries, function( QueryDTO $q ) use ( $slug ) {
			return $q->slug === $slug;
		} ) );

		if ( ! empty( $queries ) ) {
			return $queries[0];
		}

		return null;
	}

	/**
	 * Return a list of all defined queries from a set of saved settings.
	 *
	 * @since 1.0.0
	 * @return array<int,QueryDTO>
	 */
	public static function getFromSettings( ?array $savedQueries, ?\stdClass $settings = null ): array {
		$queries = array();

		if ( ! $savedQueries || 0 === count( array_filter( $savedQueries, function( $q ) { return isset( $q->base ) && 1 == $q->base; } ) ) ) {
			$queries[] = QueryDTO::default();
		}

		if ( $savedQueries ) {
			foreach ( $savedQueries as $query ) {
				$queries[] = QueryDTO::fromSettings( $query );
			}
		}

		if ( $settings ) {
			usort( $queries, function( $a, $b ) use ( $settings ) {
				if ( 'desktopFirst' === $settings->options->queriesMode ) {
					return intval( $a->value ) > intval( $b->value ) ? -1 : 1;
				} else {
					return intval( $a->value ) > intval( $b->value ) ? 1 : -1;
				}
			} );
		}

		foreach ( $queries as $i => &$query ) {
			if ( 0 === $i ) {
				$query->base = true;
			} else {
				$query->base = false;
			}

			if ( $query->base ) {
				$query->inherit = '';
			} else {
				if ( isset( $queries[ $i - 1 ] ) ) {
					$query->inherit = $queries[ $i - 1 ]->slug;
				}
			}
		}

		if ( false === Core::instance()->isPro() ) {
			$queries = array_slice( $queries, 0, 2 );
		}

		return $queries;
	}

	/**
	 * Build the query string.
	 *
	 * @since 1.0.0
	 * @param string $query The original query string.
	 * @return string
	 */
	public static function build( string $query ): string {
		if ( $query && ! str_starts_with( $query, '@media' ) ) {
			$query = '@media ' . $query;
		}

		return $query;
	}

}