JetBooking - Price Filter Based on Selected Date Range

code.php

<?php
add_filter( 'jet-smart-filters/query/final-query', function( $query ) {

    if ( empty( $query['meta_query'] ) ) {
        return $query;
    }
    
    foreach ( $query['meta_query'] as $index => $meta_query ) {
        if ( isset( $meta_query['key'] ) && '_seasonal_price' === $meta_query['key'] ) { // `_seasonal_price` unique key from Query Variable filter option.
            $excluded = jet_abaf_get_excluded_apartments( $meta_query['value'] );
    
            unset( $query['meta_query'][ $index ] );
    
            if ( isset( $query['post__not_in'] ) ) {
                $query['post__not_in'] = array_merge( $query['post__not_in'], $excluded );
            } else {
                $query['post__not_in'] = $excluded;
            }
        }
    }

    return $query;
    
}, 1, 20 );

function jet_abaf_get_excluded_apartments( $range_value ) {

    if ( empty( $range_value ) ) {
        return [];
    }

    $store_type     = jet_abaf()->settings->get( 'filters_store_type' );
    $searched_dates = jet_abaf()->stores->get_store( $store_type )->get( 'searched_dates' );

    if ( ! trim( $searched_dates ) ) {
        $dates = [
            strtotime( 'today' ) + 1,
            strtotime( 'today' ) + 12 * HOUR_IN_SECONDS,
        ];
    } else {
        $dates = explode( ' - ', $searched_dates );
    }

    $posts = jet_abaf()->tools->get_booking_posts();

    if ( empty( $posts ) ) {
        return [];
    }

    $excluded_posts = [];

    foreach ( $posts as $post ) {
        $period          = jet_abaf()->tools->get_booking_period( $dates[0], $dates[1], $post->ID );
        $interval        = jet_abaf()->tools->get_booking_period_interval( $dates[0], $dates[1], $post->ID );
        $price           = new \JET_ABAF\Price( $post->ID );
        $seasonal_prices = $price->seasonal_price->get_price();
        $period_prices   = [];

        foreach ( $period as $day ) {
            $pricing = [
                'price'         => $price->get_default_price(),
                'price_rates'   => $price->rates_price->get_rates(),
                'weekend_price' => $price->weekend_price->get_price(),
            ];

            if ( ! empty( $seasonal_prices ) ) {
                foreach ( $seasonal_prices as $seasonal_price ) {
                    if ( $day->getTimestamp() >= $seasonal_price['start'] && $day->getTimestamp() <= $seasonal_price['end'] ) {
                        $pricing = $seasonal_price;
                    }
                }
            }

            $weekend_price = $pricing['weekend_price'][ $day->format( 'w' ) ] ?? [];
            $day_price     = ! empty( $weekend_price ) ? $weekend_price : $pricing['price'];

            if ( ! empty( $pricing['price_rates'] ) ) {
                foreach ( $pricing['price_rates'] as $price_rate ) {
                    if ( $interval->days >= intval( $price_rate['duration'] ) ) {
                        $day_price = $price_rate['value'];
                    }
                }
            }

            $period_prices[] = floatval( $day_price );
        }

        if ( min( $period_prices ) >= $range_value[0] && min( $period_prices ) <= $range_value[1] ) {
            continue;
        }

        $excluded_posts[] = $post->ID;
    }

    return $excluded_posts;

}