class.bt-booking-direct-booking.php

<?php
/**
 * @file
 * @brief Implements the BTBooking_Direct_Booking class.
 * @author Matthias Fehring
 * @version 1.0.0
 * @date 2016
 *
 * @copyright
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

defined( 'ABSPATH' ) or die (' Am Arsch die R&auml;uber! ');

/**
 * @brief Implements the @c btb_direct_booking shortcode.
 *
 * The @c btb_direct_booking shortcode shows a little box to the user where a booking can be
 * started for the specified event. The box shows the name of the event, the price, optional contact links
 * for an individual request and a dropdown menu for the event dates.
 *
 * The shortcode ouput is generated by filter hooks that are only added by the plugin if no other filter is registered
 * for the specified hook. That should make it easy to customize the ouptut.
 *
 * If the event has no times specified, it shows only a link to a contact page to start an individural request.
 *
 * The shortcode can be used without any attributes when placed on an event page or an event description page. It than
 * tries to find the event belonging to this page. So it might be a little faster if you provide an event ID.
 *
 * @par Available shortcode attributes
 * - @a id The ID of an event.
 * - @a style The style to use. Currently supported 'default', 'avada', 'custom'.
 * - @a headline Headline for the booking box.
 * - @a button_class HTML class for the booking button.
 * - @a button_text Text shown on the booking button.
 * - @a select_class HTML class for the data select element.
 * - @a select_label Label for the date selector.
 * - @a amount_input_class HTML class for the amount input element.
 * - @a amount_input_type Type of the amount input field. Default: 'number'.
 * - @a amount_input_surrounding HTML class for a div element surrounding the input element. Only applied when value set.
 * - @a amount_input_label Text label for the input of the amount.
 * - @a ind_req_label Text label for individual request contact link.
 * - @a ind_req_force Force the display of the individual request link on events with times.
 *
 * @par Example
 * @code
 [btb_direct_booking id="9" button_class="button button-small" select_label="Tickets" ind_req_force="1"]
 * @endcode
 *
 *
 * @since 1.0.0
 *
 * @todo Better implementation of events without dates or with only one date.
 */
class BTBooking_Direct_Booking {

    /**
     * Registers the shortcode btb_direct_booking.
     */
    public static function register_short_code() {
        add_shortcode( 'btb_direct_booking', array('BTBooking_Direct_Booking','direct_booking_func') );
    }

    /**
     * Processes the btb_direct_booking shortcode.
     *
     * If the booking process is started, it takes the POST data and creates a new booking post item
     * for further processing.
     *
     * @param array $atts See class description for explanation.
     */
    public static function direct_booking_func($atts) {

        $master_instance = (get_option('btb_instance_type', 'master') == 'master');

        if (!empty($_POST)) {

            if (!wp_verify_nonce($_POST['btb_direct_booking_nonce'], 'btb_direct_booking_data')) {
                return;
            }

            if (!isset($_POST['btb_booking_event_id']) || !isset($_POST['btb_booking_amount']) || !isset($_POST['btb_booking_time'])) {
                return;
            }

            $event_id = intval($_POST['btb_booking_event_id']);
            $time_id = intval($_POST['btb_booking_time']);
            $amount = intval($_POST['btb_booking_amount']);

            if ($master_instance) {
                $free_slots = btb_get_time_free_slots($time_id);
            } else {
                $time = btb_get_time_from_api($time_id, OBJECT, 'display');
                $event = btb_get_event_from_api($event_id, OBJECT, 'display');
                $free_slots = $time->free_slots;
            }

            if ($free_slots >= $amount) {

                if ($master_instance) {
                    $timeprice = floatval(get_post_meta($time_id, 'btb_price', true));
                    $eventprice = floatval(get_post_meta($event_id, 'btb_price', true));
                } else {
                    $timeprice = floatval($time->price);
                    $eventprice = floatval($event->price);
                }
                $price = $timeprice ? $timeprice : $eventprice;


                if ($master_instance) {
                    $new_booking = btb_create_booking($event_id, $time_id, array(
                        'btb_slots' => $amount,
                        'btb_booking_time' => time(),
                        'btb_price' => $price
                    ));
                } else {
                    $new_booking = btb_create_booking_via_api($time_id, array(
                        'btb_slots' => $amount,
                        'btb_booking_time' => time(),
                        'btb_price' => $price
                    ));
                }


                if ($new_booking) {

                    $nonce = wp_create_nonce('btb_direct_booking_nonce');

                    echo printf('<script>window.location.href = "%s?booking=%u&btbnonce=%s";</script>', get_permalink(get_option('btb_checkout_page')), $new_booking, $nonce);

                }

            } else {

                if (abs($free_slots - $amount) < $amount && abs($free_slots - $amount) > 0) {
                    return '<p>' . esc_html__('There are not enough free slots for your selection.', 'bt-booking') . '</p>';
                } else {
                    return '<p>' . esc_html__('This is now booked out.', 'bt-booking') . '</p>';
                }

            }

        }

        $a = shortcode_atts( array(
            'id' => '',
            'style' => get_option('btb_style', 'default'),
            'headline' => get_option('btb_shortcode_headline', __('Booking', 'bt-booking')),
            'button_class' => get_option('btb_shortcode_buttonclass', ''),
            'button_text' => get_option('btb_shortcode_buttontext', __('Book', 'bt-booking')),
            'select_class' => get_option('btb_shortcode_timeselectorclass', ''),
            'select_label' => get_option('btb_shortcode_timeselectortext', __('Dates', 'bt-booking')),
            'select_layout' => get_option('btb_shortcode_timeselectorlayout', 'dropdown'),
            'amount_input_class' => get_option('btb_shortcode_amount_class', ''),
            'amount_input_type' => 'number',
            'amount_input_surrounding' => get_option('btb_shortcode_amount_surrounding',''),
            'amount_input_label' => get_option('btb_shortcode_amount_label', __('People', 'bt-booking')),
            'ind_req_label' => get_option('btb_shortcode_ind_req_label', __('Individual request', 'bt-booking')),
            'ind_req_force' => get_option('btb_shortcode_force_ind_req', 0)
        ), $atts );

        if (empty($a['id'])) {
            $current_post_type = get_post_type();
            if ($current_post_type == 'btb_event') {
                $a['id'] = get_the_ID();
            } elseif ($current_post_type == 'page') {
                $a['id'] = btb_get_event_id_by_desc_page(get_the_ID());
            }
        }

        if (empty($a['id'])) {
            return "<p>No ID given.</p>";
        }

        if ($master_instance) {
            $event = btb_get_event(intval($a['id']), OBJECT, 'display');
        } else {
            $event = btb_get_event_from_api(intval($a['id']), OBJECT, 'display');
        }


        if (!$event) {
            return '<p>'. esc_html__('Under the specified ID no event has been found.', 'bt-booking') .'</p>';
        }

        if ($event->post_type !== "btb_event") {
            return '<p>' . esc_html__('The content with the specified ID ist not an event.', 'bt-booking') . '</p>';
        }

        // requesting the event times from the database
        if ($master_instance) {
            $times = btb_get_times($event->ID, 'display', true);

            // calculate the free slots for each time
            if (!empty($times)) {
                foreach($times as $key => $time) {
                    $time->calc_slots();
                }
            }

        } else {
            $times = btb_get_times_from_api($event->ID, 'display', true);
        }

        $venue = null;

        // apply the filter to generate the booking box output
        $out = apply_filters('btb_create_direct_booking_box', '', $event, $times, $venue, $a);


        // check if we should generate schema.org output, but only if PHP JSON extension is available.
        if (get_option('btb_struct_data_enabled', 0) == 1 && extension_loaded("json")) {

            if (empty($event->struct_data_type)) {
                $event->struct_data_type = get_option('btb_struct_data_default_type', 'event');
            }

            if (!$venue && $event->struct_data_type == 'event') {
                $venue = btb_get_venue($event->venue);
            }

            $out = apply_filters('btb_create_event_schema_org', $out, $event, $times, $venue);
        }

        return $out;
    }


    /**
     * Creates the schema.org event meta data ouput.
     *
     * This is hooked to the btb_create_event_schema_org filter.
     *
     * @param string	$input The input string to which the output is appended.
     * @param BTB_Event	$event The event for which the meta data should be generated.
     * @param array		$times Array of BTB_Time objects for the event.
     * @param BTB_Venue	$venue The venue the event will happen.
     * @return string
     */
    public static function event_schema_org_filter($input, BTB_Event $event, array $times, $venue) {

        $out = $input;

        $description = btb_get_event_description($event, true);
        $eventurl = btb_get_description_page($event, true);
        $info_page = (int) get_option('btb_struct_data_orga_info_page', '');
        if ($info_page) {
            $organizer = array('@type' => 'Organization', 'url' => get_permalink($info_page));
        }
        $event_images = btb_get_event_images($event);

        $eligible_regions = get_option('btb_struct_data_eligible_regions', array());

        if ($event->struct_data_type == 'event' && $venue && $times) {

            $eventLocation = array('@type' => 'Place');
            $eventLocation["name"] = $venue->name;

            if ($venue->use_map_coords) {
                    $geo = array('@type' => 'GeoCoordinates');
                    $geo["latitude"] = $venue->latitude;
                    $geo["longitude"] = $venue->longitude;
                    $eventLocation["geo"] = $geo;
            }

            $elAddress = array('@type' => 'PostalAddress');
            if (!empty($venue->streetAndNumber())) $elAddress["streetAddress"] = $venue->streetAndNumber();
            if (!empty($venue->postal_code)) $elAddress["postalCode"] = $venue->postal_code;
            if (!empty($venue->region)) $elAddress["addressRegion"] = $venue->region;
            if (!empty($venue->city)) $elAddress["addressLocality"] = $venue->city;
            if (!empty($venue->country)) $elAddress["addressCountry"] = $venue->country;

            if (count($elAddress) > 1) {
                    $eventLocation["address"] = $elAddress;
            }

            foreach($times as $key => $time) {

                $out .= "\n<script type='application/ld+json'>\n";

                $schema = array(
                    '@context' => 'http://schema.org',
                    '@type' => $event->event_type
                );

                $schema["name"] = $event->name;

                if (!empty($organizer)) {
                    $schema["organizer"] = $organizer;
                }

                $schema["startDate"] = $time->date_only ? date('Y-m-d', $time->start) : date('c', $time->start);
                if ($time->end > $time->start) {
                    $schemaEvent["endDate"] = $time->date_only ? date('Y-m-d', $time->end) : date('c', $time->end);
                }

                if ($description) {
                    $schema['description'] = $description;
                }

                $schema["url"] = $eventurl;

                if (!empty($event_images)) {
                    $full_img = $event_images['full'];
                    $event_image = array('@type' => 'ImageObject');
                    $event_image['contentUrl'] = esc_url($full_img[0]);
                    $event_image['width'] = array('@type' => 'QuantitativeValue', 'value' => $full_img[1], 'unitText' => 'px');
                    $event_image['height'] = array('@type' => 'QuantitativeValue', 'value' => $full_img[2], 'unitText' => 'px');

                    $thumb_img = $event_images['thumbnail'];
                    $event_thumbnail = array('@type' => 'ImageObject');
                    $event_thumbnail['contentUrl'] = esc_url($thumb_img[0]);
                    $event_thumbnail['width'] = array('@type' => 'QuantitativeValue', 'value' => $thumb_img[1], 'unitText' => 'px');
                    $event_thumbnail['height'] = array('@type' => 'QuantitativeValue', 'value' => $thumb_img[2], 'unitText' => 'px');

                    $event_image['thumbnail'] = $event_thumbnail;

                    $schema['image'] = $event_image;
                }

                $eventOffer = array('@type' => 'Offer');
                $eventOffer["price"] = number_format(($time->price ? $time->price : $event->price), 2, '.', '');
                $eventOffer["priceCurrency"] = get_option('btb_currency_code', 'EUR');
                $eventOffer["url"] = get_permalink();
                $eventOffer["inventoryLevel"] = $time->free_slots;
                $eventOffer["availability"] = $time->free_slots ? "http://schema.org/InStock" : "http://schema.org/OutOfStock";
                if ($eligible_regions) {
                    if (is_array($eligible_regions) && !empty($eligible_regions)) {
                        $eventOffer['eligibleRegion'] = $eligible_regions;
                    }
                }

                $schema["offers"] = $eventOffer;

                $schema["location"] = $eventLocation;

                $out .= json_encode($schema);

                $out .= "\n</script>\n";
            }

        } elseif($event->struct_data_type == 'product' || ($event->struct_data_type == 'event' && !$venue) || ($event->struct_data_type == 'event' && !$times)) {

            $out .= "\n<script type='application/ld+json'>\n";

            $schema = array(
                '@context' => 'http://schema.org',
                '@type' => 'Product'
            );

            $schema["name"] = $event->name;

            $schema["mainEntityOfPage"] = $eventurl;

            if ($description) {
                $schema['description'] = $description;
            }

            $schema["url"] = $eventurl;

            if (!empty($event_images)) {
                $full_img = $event_images['full'];
                $event_image = array('@type' => 'ImageObject');
                $event_image['contentUrl'] = esc_url($full_img[0]);
                $event_image['width'] = array('@type' => 'QuantitativeValue', 'value' => $full_img[1], 'unitText' => 'px');
                $event_image['height'] = array('@type' => 'QuantitativeValue', 'value' => $full_img[2], 'unitText' => 'px');

                $thumb_img = $event_images['thumbnail'];
                $event_thumbnail = array('@type' => 'ImageObject');
                $event_thumbnail['contentUrl'] = esc_url($thumb_img[0]);
                $event_thumbnail['width'] = array('@type' => 'QuantitativeValue', 'value' => $thumb_img[1], 'unitText' => 'px');
                $event_thumbnail['height'] = array('@type' => 'QuantitativeValue', 'value' => $thumb_img[2], 'unitText' => 'px');

                $event_image['thumbnail'] = $event_thumbnail;

                $schema['image'] = $event_image;
            }


            $priceHigh = 0;
            $priceLow = 0;
            if ($times) {
                // extract the prices for each time
                $prices = array();
                $free_slots = 0;
                foreach($times as $key => $time) {
                    $prices[] = $time->price ? $time->price : $event->price;
                    $free_slots = $free_slots + $time->free_slots;
                }

                // sort the prices to determine highes and lowest price, if any
                sort($prices, SORT_NUMERIC);
                $priceHigh = end($prices);
                $priceLow = reset($prices);
            }

            // if there are different prices, use AggregateOffer otherwise Offer
            if ($priceHigh != $priceLow) {
                $offers = array('@type' => 'AggregateOffer');
                $offers['lowPrice'] = number_format($priceLow, 2, '.', '');
                $offers['highPrice'] = number_format($priceHigh, 2, '.', '');
            } else {
                $offers = array('@type' => 'Offer');
                $offers['price'] = $times ? number_format($priceLow, 2, '.', '') : number_format($event->price, 2, '.', '');
            }

            $offers['priceCurrency'] = get_option('btb_currency_code', 'EUR');
            $offers['url'] = get_permalink();
            if ($times) {
                $offers["inventoryLevel"] = $free_slots;
                $offers["availability"] = $free_slots ? "http://schema.org/InStock" : "http://schema.org/OutOfStock";
            }
            if (!empty($organizer)) {
                $offers["offeredBy"] = $organizer;
            }

            if ($eligible_regions) {
                if (is_array($eligible_regions) && !empty($eligible_regions)) {
                    $offers['eligibleRegion'] = $eligible_regions;
                }
            }

            $schema['offers'] = $offers;

            $out .= json_encode($schema);

            $out .= "\n</script>\n";

        }

        return $out;
    }


    /**
     * Creates the booking box output for the default style.
     *
     * This is hooked to the btb_create_direct_booking_box filter if the Avada style has
     * been chosen.
     *
     * @param string $input The input string, can be empty.
     * @param BTB_Event $event The event for which the box should be created.
     * @param array $times Array of BTB_Time objects for the event.
     * @param BTB_Venue $venue The venue the event happens.
     * @param array $atts The shortcode parameters.
     * @return string
     */
    public static function default_style_filter($input, BTB_Event $event, array $times, $venue, array $atts) {

        $out  = $input;

        $out .= '<div class="btb_direct_booking_box" data-eventid="' . $event->ID . '" data-apiurl="'. get_site_url() .'">';

        $out .= '<div class="btb_direct_booking_header">';

        $out .= '<h4>' . $atts['headline'] . '</h4>';

        $out .= '</div>';

        $out .= '<div class="btb_direct_booking_content">';

        $out .= '<p class="btb_direct_booking_name">' . $event->name . '</p>';

        $defaultVisiblePrice = $event->price;
        if (!empty($times) && $times[0]->price) {
            $defaultVisiblePrice = $times[0]->price;
        }

        $out .= '<p class="btb_direct_booking_price">' . get_option('btb_currency', '€') . ' <span data-default-price="'. number_format_i18n($event->price, 2) .'" id="btb_direct_booking_price_value_' . $event->ID . '">' . number_format_i18n($defaultVisiblePrice, 2) . '</span></p>';

        if ($event->price_hint) {
            $out .= '<p class="btb_direct_booking_price_hint">' . $event->price_hint . '</p>';
        }

        if (intval($atts['ind_req_force'])) {
            $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->name) . '">' . $atts['ind_req_label'] . '</a></p>';
        }

        if (empty($times)) {
            if (!intval($atts['ind_req_force'])) {
                $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->post_title) . '">' . __('Individual request', 'bt-booking') . '</a></p>';
            }
        } else {

            $dateselectorlayout = get_option('btb_shortcode_timeselectorlayout', 'dropdown');
            $showFreeSlotsInTitle = get_option('btb_shortcode_freeslotsintitle', 1) == 1;
            $showFreeSlotsBelow = get_option('btb_shortcode_showfreeslotsbelow', 0) == 1;

            wp_localize_script( 'btb-scripts', 'BTBooking',
                array(
                    'available' => __('available', 'bt-booking'),
                    'fully_booked' => __('fully booked', 'bt-booking'),
                    'radiolist' => $dateselectorlayout == 'radiolist' ? true : false
                )
            );

            wp_enqueue_script('btb-scripts');

            $out .= '<form id="btb_direct_booking_form_' . $event->ID . '" method="post">';

            $out .= '<input type="hidden" value="' .$event->ID . '" name="btb_booking_event_id" >';

            $out .= wp_nonce_field('btb_direct_booking_data', 'btb_direct_booking_nonce', true, false);

            if ($dateselectorlayout == 'dropdown' || $dateselectorlayout == 'bigdropdown') {

                $out .= '<label class="btb_direct_booking_select_label" for="btb_direct_booking_selector_'. $event->ID .'">' . $atts['select_label'] . '</label> ';

                $out .= '<select id="btb_direct_booking_selector_' . $event->ID . '" name="btb_booking_time" onchange="btb_change_selection(this)" data-event-id="' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '"';

                if ($dateselectorlayout == 'bigdropdown') {
                    $out .= ' size="' . (min(count($times) + 1, 6)) . '"';
                }

                $out .= '>';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<option value="' . $time->ID . '"';
                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';

                    if ($index == 0) {
                        $out .= ' selected';
                        $index++;
                    }

                    $out .= '>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</option>';

                }

                $out .= '</select>';

            } elseif ($dateselectorlayout == 'radiolist') {

                $out .= '<fieldset id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '">';

                $out .= '<legend class="btb_direct_booking_select_label">' . $atts['select_label'] . '</legend> ';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<div><input type="radio" id="time_' . $time->ID . '" name="btb_booking_time" value="' . $time->ID . '" onclick="btb_change_radio(this)"';
                    $out .= ' data-event-id="' . $event->ID . '"';
                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';
                    if ($index == 0) {
                        $out .= ' checked';
                        $index++;
                    }
                    $out .= '>';

                    $out .= '<label for="time_' . $time->ID . '">' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= '<br/>(' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</label></div>';
                }

                $out .= '</fieldset>';

            } elseif ($dateselectorlayout == 'styledlist') {

                wp_enqueue_script('jquery-ui-selectable');

                $out .= '<ul id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selectable btb_direct_booking_selector '. $atts['select_class'] . '">';

                foreach($times as $key => $time) {
                    $out .= '<li>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</li>';
                }

                $out .= '</ul>';

            }

            $out .= '<div id="btb_direct_booking_checkout_' .$event->ID . '" class="btb_direct_booking_checkout">';

            if ($showFreeSlotsBelow) {
                $out .= '<div class="btb_direct_booking_avail_clear">';

                $out .= '<span id="btb_direct_booking_free_slots_' . $event->ID . '" class="btb_direct_booking_free_slots">' . ($times[0]->free_slots ? $times[0]->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . '</span><br>';

                $out .= '</div>';
            }

            $out .= '<div class="btb_direct_booking_amount_submit">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '<div class="'. $atts['amount_input_surrounding'] .'">';
            }

            $out .= '<input type="number" class="btb_direct_booking_amout_input '. $atts['amount_input_class'] .'"  min="1" max="' . $times[0]->free_slots . '" step="1" value="1" size="4" name="btb_booking_amount" id="btb_direct_booking_amount_' . $event->ID . '" data-event-id="' . $event->ID . '">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '</div>';
            }

            if (!empty($atts['amount_input_label'])) {
                $out .= '<label class="btb_direct_amount_unit" for="btb_direct_booking_amount_' . $event->ID . '">';
                $out .= ' ' . $atts['amount_input_label'] . '</label>';
            }

            $out .= '</div>';

            $out .= '<button id="btb_direct_submit_button_' . $event->ID . '" type="submit" class="btb_direct_booking_submit '. $atts['button_class'] .'">' . $atts['button_text'] . '</button>';

            $out .= '</div></form>';

        }

        $out .= '</div></div>';

        return  $out;

    }


    /**
     * Creates the booking box output for the Bootstrap 3 style.
     *
     * This is hooked to the btb_create_direct_booking_box filter if the Avada style has
     * been chosen.
     *
     * @param string $input The input string, can be empty.
     * @param BTB_Event $event The event for which the box should be created.
     * @param array $times Array of BTB_Time objects for the event.
     * @param BTB_Venue $venue The venue the event happens.
     * @param array $atts The shortcode parameters.
     * @return string
     */
    public static function bs3_style_filter($input, BTB_Event $event, array $times, $venue, array $atts) {

        $out  = $input;

        $out .= '<div class="btb_direct_booking_box" data-eventid="' . $event->ID . '" data-apiurl="'. get_site_url() .'">';

        $out .= '<div class="btb_direct_booking_header">';

        $out .= '<h4>' . $atts['headline'] . '</h4>';

        $out .= '</div>';

        $out .= '<div class="btb_direct_booking_content">';

        $out .= '<p class="btb_direct_booking_name">' . $event->name . '</p>';

        $defaultVisiblePrice = $event->price;
        if (!empty($times) && $times[0]->price) {
            $defaultVisiblePrice = $times[0]->price;
        }

        $out .= '<p class="btb_direct_booking_price">' . get_option('btb_currency', '€') . ' <span data-default-price="'. number_format_i18n($event->price, 2) .'" id="btb_direct_booking_price_value_' . $event->ID . '">' . number_format_i18n($defaultVisiblePrice, 2) . '</span></p>';

        if ($event->price_hint) {
            $out .= '<p class="btb_direct_booking_price_hint">' . $event->price_hint . '</p>';
        }

        if (intval($atts['ind_req_force'])) {
            $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->name) . '">' . $atts['ind_req_label'] . '</a></p>';
        }

        if (empty($times)) {
            if (!intval($atts['ind_req_force'])) {
                $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->post_title) . '">' . __('Individual request', 'bt-booking') . '</a></p>';
            }
        } else {

            $dateselectorlayout = get_option('btb_shortcode_timeselectorlayout', 'dropdown');
            $showFreeSlotsInTitle = get_option('btb_shortcode_freeslotsintitle', 1) == 1;
            $showFreeSlotsBelow = get_option('btb_shortcode_showfreeslotsbelow', 0) == 1;

            wp_localize_script( 'btb-scripts', 'BTBooking',
                array(
                    'available' => __('available', 'bt-booking'),
                    'fully_booked' => __('fully booked', 'bt-booking'),
                    'radiolist' => $dateselectorlayout == 'radiolist' ? true : false
                )
            );

            wp_enqueue_script('btb-scripts');

            $out .= '<form id="btb_direct_booking_form_' . $event->ID . '" method="post">';

            $out .= '<input type="hidden" value="' .$event->ID . '" name="btb_booking_event_id" >';

            $out .= wp_nonce_field('btb_direct_booking_data', 'btb_direct_booking_nonce', true, false);

            if ($dateselectorlayout == 'dropdown' || $dateselectorlayout == 'bigdropdown') {

                $out .= '<label class="btb_direct_booking_select_label" for="btb_direct_booking_selector_'. $event->ID .'">' . $atts['select_label'] . '</label> ';

                $out .= '<select id="btb_direct_booking_selector_' . $event->ID . '" name="btb_booking_time" onchange="btb_change_selection(this)" data-event-id="' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '"';

                if ($dateselectorlayout == 'bigdropdown') {
                    $out .= ' size="' . (min(count($times) + 1, 6)) . '"';
                }

                $out .= '>';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<option value="' . $time->ID . '"';

                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';

                    if ($index == 0) {
                        $out .= ' selected';
                        $index++;
                    }

                    $out .= '>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</option>';
                }

                $out .= '</select>';

            } elseif ($dateselectorlayout == 'radiolist') {

                $out .= '<fieldset id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '">';

                $out .= '<legend class="btb_direct_booking_select_label">' . $atts['select_label'] . '</legend> ';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<div><input type="radio" id="time_' . $time->ID . '" name="btb_booking_time" value="' . $time->ID . '" onclick="btb_change_radio(this)"';
                    $out .= ' data-event-id="' . $event->ID . '"';
                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';
                    if ($index == 0) {
                        $out .= ' checked';
                        $index++;
                    }
                    $out .= '>';

                    $out .= '<label for="time_' . $time->ID . '">' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= '<br/>(' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</label></div>';
                }

                $out .= '</fieldset>';

            } elseif ($dateselectorlayout == 'styledlist') {

                wp_enqueue_script('jquery-ui-selectable');

                $out .= '<ul id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selectable btb_direct_booking_selector '. $atts['select_class'] . '">';

                foreach($times as $key => $time) {
                    $out .= '<li>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</li>';
                }

                $out .= '</ul>';

            }

            $out .= '<div id="btb_direct_booking_checkout_' .$event->ID . '" class="btb_direct_booking_checkout">';

            if ($showFreeSlotsBelow) {
                $out .= '<div class="btb_direct_booking_avail_clear">';

                $out .= '<span id="btb_direct_booking_free_slots_' . $event->ID . '" class="btb_direct_booking_free_slots">' . ($times[0]->free_slots ? $times[0]->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . '</span>';

                $out .= '</div>';
            }

            $out .= '<div class="btb_direct_booking_amount_submit">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '<div class="'. $atts['amount_input_surrounding'] .'">';
            }

            $out .= '<input type="number" class="btb_direct_booking_amout_input '. $atts['amount_input_class'] .'"  min="1" max="' . $times[0]->free_slots . '" step="1" value="1" size="4" name="btb_booking_amount" id="btb_direct_booking_amount_' . $event->ID . '" data-event-id="' . $event->ID . '">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '</div>';
            }

            if (!empty($atts['amount_input_label'])) {
                $out .= '<label class="btb_direct_amount_unit" for="btb_direct_booking_amount_' . $event->ID . '">';
                $out .= ' ' . $atts['amount_input_label'] . '</label>';
            }

            $out .= '</div>';

            $out .= '<button id="btb_direct_submit_button_' . $event->ID . '" type="submit" class="btb_direct_booking_submit '. $atts['button_class'] .'">' . $atts['button_text'] . '</button>';

            $out .= '</div></form>';

        }

        $out .= '</div></div>';

        return  $out;

    }


    /**
     * Creates the booking box output for the avada style.
     *
     * This is hooked to the btb_create_direct_booking_box filter if the Avada style has
     * been chosen.
     *
     * @param string $input The input string, can be empty.
     * @param BTB_Event $event The event for which the box should be created.
     * @param array $times Array of BTB_Time objects for the event.
     * @param BTB_Venue $venue The venue the event happens.
     * @param array $atts The shortcode parameters.
     * @return string
     */
    public static function avada_style_filter($input, BTB_Event $event, array $times, $venue, array $atts) {

        $out  = $input;

        $out .= '<div class="btb_direct_booking_box" data-eventid="' . $event->ID . '" data-apiurl="'. get_site_url() .'">';

        $out .= '<div class="btb_direct_booking_header">';

        $out .= '<h4>' . $atts['headline'] . '</h4>';

        $out .= '</div>';

        $out .= '<div class="btb_direct_booking_content">';

        $out .= '<p class="btb_direct_booking_name">' . $event->name . '</p>';

        $defaultVisiblePrice = $event->price;
        if (!empty($times) && $times[0]->price) {
            $defaultVisiblePrice = $times[0]->price;
        }

        $out .= '<p class="btb_direct_booking_price">' . get_option('btb_currency', '€') . ' <span data-default-price="'. number_format_i18n($event->price, 2) .'" id="btb_direct_booking_price_value_' . $event->ID . '">' . number_format_i18n($defaultVisiblePrice, 2) . '</span></p>';

        if ($event->price_hint) {
            $out .= '<p class="btb_direct_booking_price_hint">' . $event->price_hint . '</p>';
        }

        if (intval($atts['ind_req_force'])) {
            $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->name) . '">' . $atts['ind_req_label'] . '</a></p>';
         }

        if (empty($times)) {
            if (!intval($atts['ind_req_force'])) {
                $out .= '<p class="btb_direct_booking_no_times"><a href="' . sprintf('%s?your-subject=%s', get_permalink(get_option('btb_contact_page')), $event->post_title) . '">' . __('Individual request', 'bt-booking') . '</a></p>';
            }
        } else {

            $dateselectorlayout = get_option('btb_shortcode_timeselectorlayout', 'dropdown');
            $showFreeSlotsInTitle = get_option('btb_shortcode_freeslotsintitle', 1) == 1;
            $showFreeSlotsBelow = get_option('btb_shortcode_showfreeslotsbelow', 0) == 1;

            wp_localize_script( 'btb-scripts', 'BTBooking', array(
                'available' => __('available', 'bt-booking'),
                'fully_booked' => __('fully booked', 'bt-booking'),
                'radiolist' => $dateselectorlayout == 'radiolist' ? true : false
                )
            );

            wp_enqueue_script('btb-scripts');

            $out .= '<form id="btb_direct_booking_form_' . $event->ID . '" method="post">';

            $out .= '<input type="hidden" value="' .$event->ID . '" name="btb_booking_event_id" >';

            $out .= wp_nonce_field('btb_direct_booking_data', 'btb_direct_booking_nonce', true, false);

            if ($dateselectorlayout == 'dropdown' || $dateselectorlayout == 'bigdropdown') {

                $out .= '<label class="btb_direct_booking_select_label" for="btb_direct_booking_selector_'. $event->ID .'">' . $atts['select_label'] . '</label> ';

                $out .= '<select id="btb_direct_booking_selector_' . $event->ID . '" name="btb_booking_time" onchange="btb_change_selection(this)" data-event-id="' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '"';

                if ($dateselectorlayout == 'bigdropdown') {
                        $out .= ' size="' . (min(count($times) + 1, 6)) . '"';
                }

                $out .= '>';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<option value="' . $time->ID . '"';

                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';

                    if ($index == 0) {
                        $out .= ' selected';
                        $index++;
                    }

                    $out .= '>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</option>';
                }

                $out .= '</select>';

            } elseif ($dateselectorlayout == 'radiolist') {

                $out .= '<fieldset id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selector '. $atts['select_class'] . '">';

                $out .= '<legend class="btb_direct_booking_select_label">' . $atts['select_label'] . '</legend> ';

                $index = 0;
                foreach($times as $key => $time) {
                    $out .= '<div><input type="radio" id="time_' . $time->ID . '" name="btb_booking_time" value="' . $time->ID . '" onclick="btb_change_radio(this)"';
                    $out .= ' data-event-id="' . $event->ID . '"';
                    $out .= ' data-slots="' . $time->free_slots . '"';
                    $out .= ' data-price="' . number_format_i18n(($time->price ? $time->price : $event->price), 2) . '"';
                    if ($index == 0) {
                        $out .= ' checked';
                        $index++;
                    }
                    $out .= '>';

                    $out .= '<label for="time_' . $time->ID . '">' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= '<br/>(' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</label></div>';
                }

                $out .= '</fieldset>';

            } elseif ($dateselectorlayout == 'styledlist') {

                wp_enqueue_script('jquery-ui-selectable');

                $out .= '<ul id="btb_direct_booking_selector_' . $event->ID . '" class="btb_direct_booking_selectable btb_direct_booking_selector '. $atts['select_class'] . '">';

                foreach($times as $key => $time) {
                    $out .= '<li>' . $time->post_title;
                    if ($showFreeSlotsInTitle) {
                        $out .= ' (' . ($time->free_slots ? $time->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . ')';
                    }
                    $out .= '</li>';
                }

                $out .= '</ul>';

            }

            $out .= '<div id="btb_direct_booking_checkout_' .$event->ID . '" class="btb_direct_booking_checkout">';

            if ($showFreeSlotsBelow) {
                $out .= '<div class="btb_direct_booking_avail_clear">';

                $out .= '<span id="btb_direct_booking_free_slots_' . $event->ID . '" class="btb_direct_booking_free_slots">' . ($times[0]->free_slots ? $times[0]->free_slots . ' ' . __('available', 'bt-booking') : __('fully booked', 'bt-booking')) . '</span>';

                $out .= '</div>';
            }

            $out .= '<div class="btb_direct_booking_amount_submit">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '<div class="'. $atts['amount_input_surrounding'] .'">';
            }

            $out .= '<input type="number" class="btb_direct_booking_amout_input '. $atts['amount_input_class'] .'"  min="1" max="' . $times[0]->free_slots . '" step="1" value="1" size="4" name="btb_booking_amount" id="btb_direct_booking_amount_' . $event->ID . '" data-event-id="' . $event->ID . '">';

            if (!empty($atts['amount_input_surrounding'])) {
                $out .= '</div>';
            }

            if (!empty($atts['amount_input_label'])) {
                $out .= '<label class="btb_direct_amount_unit" for="btb_direct_booking_amount_' . $event->ID . '">';
                $out .= ' ' . $atts['amount_input_label'] . '</label>';
            }

            $out .= '<button id="btb_direct_submit_button_' . $event->ID . '" type="submit" class="btb_direct_booking_submit '. $atts['button_class'] .'">' . $atts['button_text'] . '</button>';

            $out .= '</div></div></form>';

        }

        $out .= '</div></div>';

        return  $out;
    }

}
?>