File booking-confirmation.php

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<?php
/**
 * Bookings and Appointment Plugin for WooCommerce
 *
 * Class for handling Reuires Confirmation feature
 *
 * @author   Tyche Softwares
 * @package  BKAP/Booking-Confirmation
 * @category Classes
 */
if ( ! class_exists( 'bkap_booking_confirmation' ) ) {

    /**
     * Class for handling Reuires Confirmation feature
     *
     * @class bkap_booking_confirmation
     */
    class bkap_booking_confirmation {

        /**
         * Default constructor
         *
         * @since 2.5
         */
    
        public function __construct() {

            // add checkbox in admin
            add_action( 'bkap_after_purchase_wo_date',                  array( &$this, 'confirmation_checkbox' ), 10, 1 );            
            // save the checkbox value in post meta record
            add_filter( 'bkap_save_product_settings',                   array( &$this, 'save_product_settings' ), 10, 2 );            
            // change the button text product page
            add_filter( 'woocommerce_product_single_add_to_cart_text',  array( &$this, 'change_button_text' ),10, 1 );
            // change the button text on Shop page
            add_filter( 'woocommerce_product_add_to_cart_text',         array( &$this, 'change_button_text' ),10, 1 );
            // Check if Cart contains any product that requires confirmation
            add_filter( 'woocommerce_cart_needs_payment',               array( &$this, 'bkap_cart_requires_confirmation' ), 10, 2 );
            // change the payment gateway at Checkout
            add_filter( 'woocommerce_available_payment_gateways',       array( &$this, 'bkap_remove_payment_methods' ), 10, 1 );
            // Prevent pending being cancelled
            add_filter( 'woocommerce_cancel_unpaid_order',              array( $this, 'bkap_prevent_cancel' ), 10, 2 );
            // Control the my orders actions.
            add_filter( 'woocommerce_my_account_my_orders_actions',     array( $this, 'bkap_my_orders_actions' ), 10, 2 );
            // Add the View Bookings link in Woo->Orders edit orders page
            add_action( 'woocommerce_admin_order_item_headers',         array( $this, 'bkap_link_header' ) );
            add_action( 'woocommerce_admin_order_item_values',          array( $this, 'bkap_link' ), 10, 3 );
            // Ajax calls
            add_action( 'admin_init',                                   array( &$this, 'bkap_confirmations_ajax' ) );
            // Cart Validations
            add_filter( 'bkap_validate_cart_products',                  array( &$this, 'bkap_validate_conflicting_products' ), 10, 2 );
            // Once the payment is completed, order status changes to any of the below, fire these hooks to ensure the booking status is also updated.            
            add_action( 'woocommerce_order_status_processing',          array( &$this, 'bkap_update_booking_status' ), 10, 1 );
            add_action( 'woocommerce_order_status_on-hold',             array( &$this, 'bkap_update_booking_status' ), 10, 1 );
            add_action( 'woocommerce_order_status_completed',           array( &$this, 'bkap_update_booking_status' ), 10, 1 );
            // Remove the booking from the order when it's cancelled
            // Happens only if the booking requires confirmation and the order contains multiple bookings which require confirmation
            add_action( 'bkap_booking_pending-confirmation_to_cancelled', array( $this, 'bkap_remove_cancelled_booking' ) );
        }
        
        /**
         * Ajax Calls for the Confirmation feature.
         * 
         * @hook admin_init
         * @since 2.5
         */

        function bkap_confirmations_ajax() {
            // only logged in users can access the admin side and approve bookings
            // add_action( 'wp_ajax_bkap_save_booking_status', array( &$this, 'bkap_save_booking_status' ) );
        }
        
        /**
         * Add a Requires Confirmation checkbox in the Booking meta box
         * 
         * @param int $product_id - Product ID
         * 
         * @hook bkap_after_purchase_wo_date
         * @since 2.5
         */

        function confirmation_checkbox( $product_id ) {
            
            $booking_settings = bkap_get_post_meta( $product_id );
            ?>
            <div id="requires_confirmation_section" class="booking_options-flex-main">
                        
                <div class="booking_options-flex-child">
                    <label for="bkap_requires_confirmation"><?php _e( 'Requires Confirmation?', 'woocommerce-booking' ); ?></label>
                </div>
                                
                <?php 
                    $date_show = '';
                    if( isset( $booking_settings[ 'booking_confirmation' ] ) && 'on' == $booking_settings[ 'booking_confirmation' ] ) {
                        $requires_confirmation = 'checked';
                    } else {
                        $requires_confirmation = '';
                    }
                ?>
                <div class="booking_options-flex-child">
                    <label class="bkap_switch">
                        <input type="checkbox" name="bkap_requires_confirmation" id="bkap_requires_confirmation" <?php echo $requires_confirmation; ?>>
                        <div class="bkap_slider round"></div>
                    </label>
                </div>
                
                <div class="booking_options-flex-child bkap_help_class">
                    <img class="help_tip" width="16" height="16" data-tip="<?php _e( 'Enable this setting if the booking requires admin approval/confirmation. Payment will not be taken at Checkout', 'woocommerce-booking' ); ?>" src="<?php echo plugins_url() ;?>/woocommerce/assets/images/help.png" />
                </div>
                
            </div>
            
            <script type="text/javascript">
            jQuery(document).ready(function(){
                // when the page loads
                if ( jQuery( "#bkap_requires_confirmation" ).attr( 'checked' ) ) {
                    jQuery( '#booking_purchase_without_date' ).prop( 'disabled', true );
                } else {
                    jQuery( '#booking_purchase_without_date' ).prop( 'disabled', false );
                }
                // when the checkbox is checked/unchecked
                jQuery( "#bkap_requires_confirmation" ).change( function () {
                    if ( jQuery( "#bkap_requires_confirmation" ).attr( 'checked' ) ) {
                        jQuery( "#booking_purchase_without_date" ).attr( 'checked', false );
                        jQuery( '#booking_purchase_without_date' ).prop( 'disabled', true );
                    } else {
                        jQuery( '#booking_purchase_without_date' ).prop( 'disabled', false );
                    }
                });
            });
            </script>
            <?php 
        }
        
        /**
         * Save the Requires Confirmation setting in Booking meta box
         * 
         * @param array $booking_settings - Booking Settings for the product
         * @param int $product_id - product ID
         * @return array $booking_settings - Updated settings
         * 
         * @hook bkap_save_product_settings
         * @since 2.5
         */

        function save_product_settings( $booking_settings, $product_id ) {
            
            $booking_settings[ 'booking_confirmation' ] = '';
            
            if( isset( $_POST[ 'bkap_requires_confirmation' ] ) ) {
                $booking_settings[ 'booking_confirmation' ] = $_POST[ 'bkap_requires_confirmation' ];
            }
            
            return $booking_settings;
        }
        
        /**
         * Modify the Add to cart button text for products that require confirmations
         * 
         * @param string $var - Text for the button
         * @global object $post WP_Post 
         * @hook woocommerce_product_single_add_to_cart_text
         * @since 2.5
         */

        function change_button_text( $var ) {
            global $post;
            // Product ID
            $product_id = $post->ID;
            
            // Return if the prpduct is not bookable.
            $bookable_status = bkap_common::bkap_get_bookable_status( $product_id );
            if( !$bookable_status ) {
                return $var;
            }
            
            $requires_confirmation = bkap_common::bkap_product_requires_confirmation( $product_id );
            
            if( $requires_confirmation ) {
                 $bkap_check_availability_text = get_option( 'bkap_check_availability' );

                if( $bkap_check_availability_text == "" ) {
                    return __( 'Check Availability', 'woocommerce-booking' );
                }else{
                    return __( $bkap_check_availability_text, 'woocommerce-booking' );
                }

            } else {

                $bkap_add_to_cart_text = get_option( 'bkap_add_to_cart' );

                if( $bkap_add_to_cart_text == "" ){
                    return $var;
                }else{
                    return __( $bkap_add_to_cart_text, 'woocommerce-booking' );
                }                
            }            
        }
        
        /**
         * Return true if the cart contains a product that requires confirmation.
         * In this scenario no payment is taken at Checkout
         * 
         * @param boolean $needs_payment
         * @param WC()->cart $cart
         * @return boolean
         * 
         * @hook woocommerce_cart_needs_payment
         * @since 2.5
         */

        function bkap_cart_requires_confirmation( $needs_payment, $cart ) {
            
            if ( ! $needs_payment ) {
                foreach ( $cart->cart_contents as $cart_item ) {
                    $requires_confirmation = bkap_common::bkap_product_requires_confirmation( $cart_item['product_id'] );
                    
                    if( $requires_confirmation ) {
                        $needs_payment = true;
                        break;
                    }
                }
            }
            
            return $needs_payment;            
        }  

        /**
         * Modify Payment Gateways
         * 
         * Remove the existing payment gateways and add the Bookign payment gateway
         * when the Cart contains a product that requires confirmation.
         * 
         * @param array $available_gateways - Array containing all the Payment Gateways
         * @return array $available_gateways - Array containing the Payment Gateways
         * 
         * @hook woocommerce_available_payment_gateways
         * @since 2.5
         */

        function bkap_remove_payment_methods( $available_gateways ) {
        
            $cart_requires_confirmation = bkap_common::bkap_cart_requires_confirmation();
            
            if ( $cart_requires_confirmation ) {
                unset( $available_gateways );
        
                $available_gateways = array();
                $available_gateways['bkap-booking-gateway'] = new BKAP_Payment_Gateway();
            }
        
            return $available_gateways;
        }

        /**
         * Prevent Order Cancellation
         * 
         * Prevent WooCommerce from cancelling an order if the order contains
         * an item that is awaiting booking confirmation once Hold Stock limit is reached.
         * 
         * @param boolean $return
         * @param WC_Order $order
         * @return boolean $return
         * 
         * @hook woocommerce_cancel_unpaid_order
         * @since 2.5
         */

        function bkap_prevent_cancel( $return, $order ) {
            if ( '1' === get_post_meta( $order->get_id(), '_bkap_pending_confirmation', true ) ) {
                return false;
            }
        
            return $return;
        }
        
        /**
         * Hide the Pay button in My Accounts
         * 
         * Hide the Pay button in My Accounts for orders that contain
         * an item that's still awaiting booking confirmation.
         * 
         * @param array $actions - List of Actions for an order on My Account page
         * @param WC_Order $order
         * @global object $wpdb Global wpdb object
         * @return array $actions - List of Actions for an order on My Account page
         * @since 2.5
         */

         function bkap_my_orders_actions( $actions, $order ) {
            global $wpdb;
        
            $order_payment_method = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->payment_method : $order->get_payment_method();
            if ( $order->has_status( 'pending' ) && 'bkap-booking-gateway' === $order_payment_method ) {
                
                $status = array();
                foreach ( $order->get_items() as $order_item_id => $item ) {
                    if ( 'line_item' == $item['type'] ) {
                        
                        $_status = $item[ 'wapbk_booking_status' ];
                        $status[] = $_status;
                 
                    }
                }
        
                if ( in_array( 'pending-confirmation', $status ) && isset( $actions['pay'] ) ) {
                    unset( $actions['pay'] );
                } else if ( in_array( 'cancelled', $status ) && isset( $actions['pay'] ) || count( $status ) == 0 ) {
                    unset( $actions['pay'] );
                }
            }
        
            return $actions;
        }
        
        /**
         * Create a column in WooCommerce->Orders->Edit Orders page 
         * for each item
         * 
         * @hook woocommerce_admin_order_item_headers
         * @since 2.5
         */

        function bkap_link_header() {
           ?><th class="bkap_edit_header">&nbsp;</th><?php
        }
        
        /**
         * Display View Booking Link
         * 
         * Add the View Booking Link for a given item in 
         * WooCommerce->orders Edit Orders
         *  
         * @param WC_Product $_product - Product Details
         * @param WC_Product_Item $item - Item Details
         * @param int $item_id - Item ID
         * @global object $wpdb Global wpdb object
         * 
         * @hook woocommerce_admin_order_item_values
         * @since 2.5
         */

        function bkap_link( $_product, $item, $item_id ) {
            
            global $wpdb;
            
            if ( isset( $_product ) && !empty( $_product ) ) {
                $product_id = $_product->get_id();

                // get the booking settings for the product
                $booking_settings = get_post_meta( $product_id, 'woocommerce_booking_settings', true );
                
                // order ID
                $query_order_id = "SELECT order_id FROM `". $wpdb->prefix."woocommerce_order_items`
                            WHERE order_item_id = %d";
                $get_order_id = $wpdb->get_results( $wpdb->prepare( $query_order_id, $item_id ) );
                
                $order_id = 0;
                if ( isset( $get_order_id ) && is_array( $get_order_id ) && count( $get_order_id ) > 0 ) {
                    $order_id = $get_order_id[0]->order_id;
                }
                
                // get booking posts for the order
                $query_posts = "SELECT ID FROM `" . $wpdb->prefix . "posts`
                                WHERE post_type = %s
                                AND post_parent = %d";
                
                $get_posts = $wpdb->get_results( $wpdb->prepare( $query_posts, 'bkap_booking', $order_id ) );
                
                foreach( $get_posts as $loop_post_id ) {
                
                    $get_item_id = get_post_meta( $loop_post_id->ID, '_bkap_order_item_id', true );
                
                    if ( $get_item_id == $item_id ) {
                        $booking_post_id = $loop_post_id->ID;
                        break;
                    }
                }
                
                // default the variables
                $item_type = '';
                $_status = '';
                if ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) {
                    $_status = ( isset( $item[ 'wapbk_booking_status' ] ) ) ? $item[ 'wapbk_booking_status' ] : ''; // booking status
                    $item_type = $item[ 'type' ]; // line item type
                } else {
                    if ( $item ) {
                         // booking status
                        $meta_data = $item->get_meta_data();
                        foreach( $meta_data as $m_key => $m_value ) {
                            if ( isset( $m_value->key ) && '_wapbk_booking_status' == $m_value->key ) {
                                $_status = $m_value->value;
                                break;
                            }
                        }
                        // line item type
                        $item_type = $item->get_type();
                    }
                }
                
                if ( isset( $booking_post_id ) && $booking_post_id > 0 && ( isset( $item_type ) && 'line_item' == $item_type ) && ( ( isset( $_status ) && '' != $_status ) || ( ! isset( $_status ) ) ) ) {
                    $args = array( 'post' => $booking_post_id, 'action' => 'edit' );
                    ?>
                    <td class="bkap_edit_column">
                        <a href="<?php echo esc_url_raw( add_query_arg( $args, admin_url() . 'post.php' ) ); ?>"><?php _e( 'Edit Booking', 'woocommerce-booking' ); ?></a>
                        <?php do_action( 'bkap_woo_order_item_values', $_product, $item, $item_id )?>
                    </td>
                    <?php 
                } else {
                    echo '<td></td>';
                }
            } else {
                echo '<td></td>';
            }
            
        }
        
        /**
         * Update Item status
         * 
         * This function updates the item booking status. 
         * It is called from the Edit Booking page Save button click
         * 
         * @param integer $item_id - Item ID
         * @param string $_status - New Booking Status
         * @global object $wpdb Global wpdb object
         * 
         * @since 2.5
         */

        static function bkap_save_booking_status( $item_id, $_status ) {
            global $wpdb;
            
            wc_update_order_item_meta( $item_id, '_wapbk_booking_status', $_status );
                
            // get the booking ID using the item ID
            $booking_id = bkap_common::get_booking_id( $item_id );

            // update the booking post status
            if ( $booking_id ) {
                $new_booking = bkap_checkout::get_bkap_booking( $booking_id );
                $new_booking->update_status( $_status );
            }

            // get the order ID
            $order_id = 0;
            $query_order_id = "SELECT order_id FROM `". $wpdb->prefix."woocommerce_order_items`
                                WHERE order_item_id = %d";
            $get_order_id = $wpdb->get_results( $wpdb->prepare( $query_order_id, $item_id ) );
            
            if ( isset( $get_order_id ) && is_array( $get_order_id ) && count( $get_order_id ) > 0 ) {
                $order_id = $get_order_id[0]->order_id;
            }
            
            //create order object
            $order = new WC_Order( $order_id );
            
            // order details
            $order_data = $order->get_items();
            
            $item_value = $order_data[ $item_id ];
                
            // update the booking history tables and GCal
            $confirmation_object = new bkap_booking_confirmation();
            $confirmation_object->update_booking_tables( $_status, $order_id, $item_id, $item_value, $order );
             
            // now check if the product is a bundled product
            // if yes, then we need to update the booking status of all the child products
            $bundled_items = wc_get_order_item_meta( $item_id, '_bundled_items' );
            
            if ( isset( $bundled_items ) && '' != $bundled_items ) {
                $bundle_cart_key = wc_get_order_item_meta( $item_id, '_bundle_cart_key' );
                foreach( $order_data as $o_key => $o_value ) {
                    $bundled_by = wc_get_order_item_meta( $o_key, '_bundled_by' );
                     
                    // check if it is a part of the bundle
                    if ( isset( $bundled_by ) && $bundled_by == $bundle_cart_key ) {
                        // update the booking status
                        wc_update_order_item_meta( $o_key, '_wapbk_booking_status', $_status );
                        // update the booking history tables and GCal
                        $confirmation_object->update_booking_tables( $_status, $order_id, $o_key, $o_value, $order );
                         
                    }
                }
            }
             
            // create an instance of the WC_Emails class , so emails are sent out to customers
            new WC_Emails();
            if ( 'cancelled' == $_status ) {
                do_action( 'bkap_booking_pending-confirmation_to_cancelled_notification', $item_id );
                // remove the item from the order
                do_action( 'bkap_booking_pending-confirmation_to_cancelled', $item_id );
                
            } else if ( 'confirmed' == $_status ) {// if booking has been approved, send email to user
                do_action( 'bkap_booking_confirmed_notification', $item_id );
            }
            
        }
        
        /**
         * Update the plugin tables and GCal for booking status
         * for each Item ID passed
         * 
         * @param string $_status - New Booking Status
         * @param integer $order_id - Order ID
         * @param integer item_id - Item ID
         * @param WC_Product_Item item_value $item_value - Item Details
         * @param WC_Order order - Order Details
         * @global object $wpdb Global wpdb object
         * 
         * @since 3.5
         */

        function update_booking_tables( $_status, $order_id, $item_id, $item_value, $order ) {
        
            global $wpdb;
            // if the booking has been denied, release the bookings for re-allotment
        
            if ( 'cancelled' == $_status ) {
        
                $select_query =   "SELECT booking_id FROM `".$wpdb->prefix."booking_order_history`
                          WHERE order_id= %d";
                $results      =   $wpdb->get_results ( $wpdb->prepare( $select_query, $order_id ) );
        
                $booking_details = array();
        
                foreach ( $results as $key => $value ) {
        
                    $select_query_post   =   "SELECT post_id,start_date, end_date, from_time, to_time FROM `".$wpdb->prefix."booking_history`
                                     WHERE id= %d";
                     
                    $results_post      =   $wpdb->get_results( $wpdb->prepare( $select_query_post, $value->booking_id ) );
        
                    $booking_info = array( 'post_id' => $results_post[0]->post_id,
                        'start_date' => $results_post[0]->start_date,
                        'end_date' => $results_post[0]->end_date,
                        'from_time' => $results_post[0]->from_time,
                        'to_time' => $results_post[0]->to_time
                    );
                    $booking_details[ $value->booking_id ] = $booking_info;
        
                }
        
                foreach ( $booking_details as $booking_id => $booking_data ) {
                    if ( $item_value[ 'product_id' ] == $booking_data['post_id'] ) {
                        // cross check the date and time as well as the product can be added to the cart more than once with different booking details
                        if ( $item_value[ 'wapbk_booking_date' ] == $booking_data[ 'start_date' ] ) {
        
                            $time = $booking_data[ 'from_time' ] . ' - ' . $booking_data[ 'to_time' ];
                            if ( isset( $item_value[ 'wapbk_checkout_date' ] ) && ( $item_value[ 'wapbk_checkout_date' ] == $booking_data[ 'end_date' ] ) ) {
                                $item_booking_id = $booking_id;
                                break;
                            } else if( isset( $item_value[ 'wapbk_time_slot' ] ) && ( $item_value[ 'wapbk_time_slot'] == $time ) ) {
                                $item_booking_id = $booking_id;
                                break;
                            } else {
                                $item_booking_id = $booking_id;
                                break;
                            }
                        }
                    }
                }
        
                bkap_cancel_order::bkap_reallot_item( $item_value, $item_booking_id, $order_id );
        
            } else if ( 'confirmed' == $_status ) {
                 
                require_once plugin_dir_path( __FILE__ ) . '/includes/class.gcal.php';
                // add event in GCal if sync is set to autmated
                $gcal = new BKAP_Gcal();
                 
                $user_id = get_current_user_id();
                if( $gcal->get_api_mode( $user_id, $item_value[ 'product_id' ] ) == "directly" ) {
                     
                    $valid_date = false;
                    if ( isset( $item_value[ 'wapbk_booking_date' ] ) ) {
                        $valid_date = bkap_common::bkap_check_date_set( $item_value[ 'wapbk_booking_date' ] );
                    }
                     
                    if ( $valid_date ) {
                        $event_details = array();
                         
                        $event_details[ 'hidden_booking_date' ] = $item_value[ 'wapbk_booking_date' ];
                         
                        if ( isset( $item_value[ 'wapbk_checkout_date' ] ) && $item_value[ 'wapbk_checkout_date' ] != '' ) {
                            $event_details[ 'hidden_checkout_date' ] = $item_value[ 'wapbk_checkout_date' ];
                        }
                         
                        if ( isset( $item_value[ 'wapbk_time_slot' ] ) && $item_value[ 'wapbk_time_slot' ] != '' ) {
                            $event_details[ 'time_slot' ] = $item_value[ 'wapbk_time_slot' ];
                        }
                         
                    $event_details[ 'billing_email' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_email : $order->get_billing_email();
                        $event_details[ 'billing_first_name' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_first_name : $order->get_billing_first_name();
                        $event_details[ 'billing_last_name' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_last_name : $order->get_billing_last_name();
                        $event_details[ 'billing_address_1' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_address_1 : $order->get_billing_address_1();
                        $event_details[ 'billing_address_2' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_address_2 : $order->get_billing_address_2();
                        $event_details[ 'billing_city' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_city : $order->get_billing_city();
                         
                        $event_details[ 'billing_phone' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->billing_phone : $order->get_billing_phone();
                        $event_details[ 'order_comments' ] = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->customer_note : $order->get_customer_note();
                        $event_details[ 'order_id' ] = $order_id;
                         
                        $shipping_first_name = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->shipping_first_name : $order->get_shipping_first_name();
                        if ( isset( $shipping_first_name ) && $shipping_first_name != '' ) {
                            $event_details[ 'shipping_first_name' ] = $shipping_first_name;
                        }

                        $shipping_last_name = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->shipping_last_name : $order->get_shipping_last_name();
                        if ( isset( $shipping_last_name ) && $shipping_last_name != '' ) {
                            $event_details[ 'shipping_last_name' ] = $shipping_last_name;
                        }
                        
                        $shipping_address_1 = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->shipping_address_1 : $order->get_shipping_address_1(); 
                        if( isset( $shipping_address_1 ) && $shipping_address_1 != '' ) {
                            $event_details[ 'shipping_address_1' ] = $shipping_address_1;
                        }

                        $shipping_address_2 = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->shipping_address_2 : $order->get_shipping_address_2(); 
                        if ( isset( $shipping_address_2 ) && $shipping_address_2 != '' ) {
                            $event_details[ 'shipping_address_2' ] = $shipping_address_2;
                        }
                        
                        $shipping_city = ( version_compare( WOOCOMMERCE_VERSION, "3.0.0" ) < 0 ) ? $order->shipping_city : $order->get_shipping_city(); 
                        if ( isset( $shipping_city ) && $shipping_city != '' ) {
                            $event_details[ 'shipping_city' ] = $shipping_city;
                        } 
                        
                        $_product = wc_get_product( $item_value[ 'product_id' ] );
                         
                        $post_title = $_product->get_title();
                        $event_details[ 'product_name' ] = $post_title;
                        $event_details[ 'product_qty' ] = $item_value[ 'qty' ];
                         
                        $event_details[ 'product_total' ] = $item_value[ 'line_total' ];
                         
                        // if sync is disabled at the product level, set post_id to 0 to ensure admin settings are taken into consideration
                        $booking_settings = get_post_meta( $item_value[ 'product_id' ], 'woocommerce_booking_settings', true );
                        $post_id = $item_value[ 'product_id' ];
                        if ( ( ! isset( $booking_settings[ 'product_sync_integration_mode' ] ) ) || ( isset( $booking_settings[ 'product_sync_integration_mode' ] ) && 'disabled' == $booking_settings[ 'product_sync_integration_mode' ] ) ) {
                            $post_id = 0;
                        }
                         
                        $gcal->insert_event( $event_details, $item_id, $user_id, $post_id, false );
                         
                        // add an order note, mentioning an event has been created for the item
                        $order_note = __( "Booking_details for $post_title have been exported to the Google Calendar", 'woocommerce-booking' );
                        $order->add_order_note( $order_note );
                    }
                }
            }       
        }
        
        /**
         * Validate bookable products 
         * 
         * This function displays a notice and empties the cart if the cart contains
         * any products that conflict with the new product being added. 
         * 
         * @param array $_POST
         * @param int $product_id - Product ID
         * @return string
         * 
         * @hook bkap_validate_cart_products
         * @since 2.5
         */

        function bkap_validate_conflicting_products( $POST, $product_id ) {
            
            $quantity_check_pass = 'yes';
            // check if the product being added requires confirmation
            $product_requires_confirmation = bkap_common::bkap_product_requires_confirmation( $product_id );
            
            // check if the cart contains a product that requires confirmation
            $cart_requires_confirmation = bkap_common::bkap_cart_requires_confirmation();
            
            $validation_status = 'warn_modify_yes';
            
            switch ( $validation_status ) {
                case 'warn_modify_yes':
                    $conflict = 'NO';
                    
                    if ( count( WC()->cart->cart_contents ) > 0 ) {
                    // if product requires confirmation and cart contains product that does not
                        if ( $product_requires_confirmation && ! $cart_requires_confirmation ) {
                            $conflict = 'YES';
                        }
                        // if product does not need confirmation and cart contains a product that does
                        if ( ! $product_requires_confirmation && $cart_requires_confirmation ) {
                            $conflict = 'YES';
                        }
                        // if conflict
                        if ( 'YES' == $conflict ) {
                            // remove existing products
                            WC()->cart->empty_cart();
                            
                            // add a notice
                            $message = bkap_get_book_t( 'book.conflicting-products' );
                            wc_add_notice( __( $message, 'woocommerce-booking' ), $notice_type = 'notice' );
                        }
                    }
                    break;
            }
            
            return $quantity_check_pass; 
        }

        /**
         * Update Booking status to paid
         * 
         * Updates the Booking status to paid to ensure they do not remain
         * in the Unpaid section in Booking->View Bookings
         * 
         * @param int $order_id
         * 
         * @hook woocommerce_order_status_processing
         *       woocommerce_order_status_on-hold
         *       woocommerce_order_status_completed
         * @since 2.5
         */

        function bkap_update_booking_status ( $order_id ) {
            
            $order_obj    =   new WC_order( $order_id );
            $order_items  =   $order_obj->get_items();
            foreach( $order_items as $item_key => $item_value ) {

                $booking_status = wc_get_order_item_meta( $item_key, '_wapbk_booking_status' );
                
                if ( isset( $booking_status ) && 'confirmed' == $booking_status ) {
                    wc_update_order_item_meta( $item_key, '_wapbk_booking_status', 'paid' );
                    
                    // get the booking ID using the item ID
                    $booking_id = bkap_common::get_booking_id( $item_key );

                    // update the booking post status
                    if ( $booking_id ) {
                        $new_booking = bkap_checkout::get_bkap_booking( $booking_id );
                        $new_booking->update_status( 'paid' );
                    }
                }
            }
        }
        
        /**
         * Remove an item from the order if the booking is not approved/rejected/cancelled
         * by the admin
         * 
         * @param int $item_id - Item ID
         * @global object $wpdb Global wpdb object
         * 
         * @since 2.5
         */
        
        function bkap_remove_cancelled_booking( $item_id ) {
            global $wpdb;
            
            $booking  = bkap_common::get_bkap_booking( $item_id );
            $order = new WC_order( $booking->order_id );
            $bookings = array();
            
            if ( ! empty ( $order ) && is_array( $order->get_items() ) ) {
                foreach ( $order->get_items() as $order_item_id => $item ) {
                    if ( $order_item_id == $item_id ) {
                        wc_delete_order_item( $order_item_id );
                        $order->calculate_totals();
                        $order->add_order_note( sprintf( __( 'The product %s has been removed from the order because the booking cannot be confirmed.', 'woocommerce-booking' ), $item['name'] ) );
                    }
                }
            }
        }
    } 
}
$bkap_booking_confirmation = new bkap_booking_confirmation(); 
?>

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