File block-pricing.php

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<?php 
/**
 * Bookings and Appointment Plugin for WooCommerce
 *
 * Class for handling Fixed Blocks and Price Ranges
 *
 * @author   Tyche Softwares
 * @package  BKAP/Block-Pricing
 * @category Classes
 */
if( session_id() === '' ){
    //session has not started
    session_start();
}

if ( !class_exists( 'bkap_block_booking' ) ) {

    /**
     * Class for handling Fixed Blocks and Price Ranges
     * @class bkap_block_booking class
     **/
    class bkap_block_booking {

        /**
         * Default constructor
         *
         * @since 4.1.0
         */

        public function __construct() {
            // Initialize settings
            //register_activation_hook( __FILE__, array( &$this, 'bkap_block_booking_activate' ) );
            
            $this->variable_block_price = 0;
            // 
            add_action( 'admin_init',                               array( &$this, 'bkap_load_ajax_block_pricing' ) );
            
            // Adding Block Pricing tab in Booking Meta Box.
            add_action( 'bkap_add_tabs',                            array( &$this, 'block_pricing_tab' ), 5, 1 );
            
            // used to add new settings on the product page booking box
            add_action( 'bkap_after_listing_enabled',               array( &$this, 'bkap_block_pricing_show_field_settings' ), 5, 1 );
            
            // Fixed Block.
            add_action( 'bkap_display_multiple_day_updated_price',  array( &$this, 'bkap_fixed_block_show_updated_price'), 6, 7 );
            // Price by Range.
            add_action( 'bkap_display_multiple_day_updated_price',  array( &$this, 'bkap_price_range_show_updated_price' ), 5, 7 );
            
            //add_action( 'woocommerce_before_add_to_cart_form',      array( &$this, 'bkap_fixed_block_before_add_to_cart' ) );
            
            add_action( 'bkap_before_booking_form',                 array( &$this, 'bkap_fixed_block_booking_after_add_to_cart' ), 7, 1 );
            
            add_action( 'bkap_display_price_div',                   array( &$this, 'bkap_fixed_block_display_price'), 10, 1 );
            
            // Copy the exisiting variable blocks to the new product when the product is duplicated
            add_action( 'bkap_product_addon_duplicate',             array( &$this, 'price_range_product_duplicate' ), 10, 2 );
            
            add_action( 'bkap_before_booking_form',                 array( &$this, 'bkap_price_range_booking_after_add_to_cart' ), 10, 1 );
            
        }
        
        /**
         * This function is used to load ajax functions required for
         * Fixed Blocks & Price Ranges
         * 
         * @since 4.1.0
         */

        function bkap_load_ajax_block_pricing() {
            
            // ajax for deleting a single fixed block.
            add_action( 'wp_ajax_bkap_delete_block',               array( &$this, 'bkap_delete_block' ) );
            
            // ajax for deleting all fixed blocks.
            add_action( 'wp_ajax_bkap_delete_all_blocks',          array( &$this, 'bkap_delete_all_blocks' ) );
            
            // ajax for clearing the block pricing options.
            add_action( 'wp_ajax_bkap_block_pricing_options',      array( &$this, 'bkap_block_pricing_options' ) );
            
            // ajax for deleting a single price range.
            add_action( 'wp_ajax_bkap_delete_range',               array( &$this, 'bkap_delete_range' ) );
            
            // ajax for deleting all price ranges.
            add_action( 'wp_ajax_bkap_delete_all_ranges',          array( &$this, 'bkap_delete_all_ranges' ) );
        }
        
        /**
         * This function is used to delete existing Fixed blocks from the 
         * table in the Booking meta box
         * 
         * @since 4.1.0
         */

        function bkap_delete_block(){
            
            $product_id = $_POST['post_id'];
            $key        = $_POST['fixed_block_key'];
            
            $bkap_fixed_blocks_data = get_post_meta( $product_id, "_bkap_fixed_blocks_data", true );
            
            if( $bkap_fixed_blocks_data != "" ){
                
                if ( array_key_exists( $key, $bkap_fixed_blocks_data ) ) {
                    unset( $bkap_fixed_blocks_data[ $key ] );
                }
            }
            update_post_meta( $product_id, "_bkap_fixed_blocks_data", $bkap_fixed_blocks_data );
            
            die();
        }
        
        /**
         * This function is used to delete existing Price Ranges from the 
         * table in the Booking meta box.
         * 
         * @since 4.1.0
         */

        function bkap_delete_range(){
             
            $product_id = $_POST['post_id'];
            $key        = $_POST['price_range_key'];
            
            $bkap_price_range_data = get_post_meta( $product_id, "_bkap_price_range_data", true );
             
            if( $bkap_price_range_data != "" ){
                 
                if ( array_key_exists( $key, $bkap_price_range_data ) ) {
                    unset( $bkap_price_range_data[ $key ] );
                }
            }
            update_post_meta( $product_id, "_bkap_price_range_data", $bkap_price_range_data );
             
            die();
        }
        
        /**
         * This function is used to delete all the Fixed Blocks present
         * for a product. 
         * 
         * @since 4.1.0
         */

         function bkap_delete_all_blocks(){
        
            $post_id    = $_POST[ 'post_id' ];
            $blank_data = "";
            update_post_meta( $post_id, '_bkap_fixed_blocks_data', $blank_data );
                
            die();
        }
        
        /**
         * This function are used to delete all the Price Ranges present
         * for a product.
         * 
         * @since 4.1.0
         */

        function bkap_delete_all_ranges(){
                
            $post_id    = $_POST[ 'post_id' ];
            $blank_data = "";
            update_post_meta( $post_id, '_bkap_price_range_data', $blank_data );
        
            die();
        }
        
        /**
         * This function are used to clear block pricing option radio button selection
         * in the Booking meta box.
         * 
         * @since 4.1.0
         */

        function bkap_block_pricing_options(){
                
            $post_id    = $_POST[ 'product_id' ];
            $blank_data = "";
            
            update_post_meta( $post_id, '_bkap_price_ranges', $blank_data );
            update_post_meta( $post_id, '_bkap_fixed_blocks', $blank_data );
            
            die();
        }
        
        /**
         * This function will add the Block Pricing tab in the Booking meta box.
         * 
         * @hook bkap_add_tabs
         * @since 4.1.0
         */

        function block_pricing_tab( $product_id ) {
        ?>
            <li>
             <a id="block_booking" class="bkap_tab" style="display:none">
                 <i class="fa fa-align-justify" aria-hidden="true"></i><?php _e( 'Block Pricing', 'woocommerce-booking' ); ?>
             </a>
            </li>
        <?php 
        }
            
        /**
         * This function add the content for the Booking meta box->Block Pricing tab.
         *
         * @param integer $product_id Product ID
         * @global object $post WP_Post
         * 
         * @hook bkap_after_listing_enabled
         * @since 4.1.0
         */

        public function bkap_block_pricing_show_field_settings( $product_id ) {
            global $post;
        
            $post_id = 0;
            if ( isset( $post->ID ) ) {
                $post_id = $post->ID;
            }
                
            $duplicate_of       = bkap_common::bkap_get_product_id( $post_id );
            $booking_settings   = get_post_meta( $duplicate_of, 'woocommerce_booking_settings', true );
            ?>
            <div id="block_booking_page">
                <?php
                   // This is the section where one can enable the block pricing option.
                   $this->bkap_enable_price_by_range_or_fixed_block_booking( $duplicate_of );
                ?>
                <hr/>               
                <?php
                   // This functions are for Fixed Block Booking and Price By Range tables.  
                   $this->bkap_fixed_block_booking_table( $duplicate_of, $booking_settings );
                   $this->bkap_price_range_booking_table( $duplicate_of, $booking_settings );
                ?>
                <div id='block_pricing_update_notification' style='display:none;'></div>
            </div>
        <?php
        }
            
        /**
         * Create and return an array of Fixed Blocks data.
         * Executed when settings are saved using either from the Booking meta box
         * or the product is saved/updated.
         *
         * @param $product_id Product ID
         * @param object $clean_fixed_block_data
         * @return array $array_of_all_fixed_block_data
         * @since 4.1.0
         */

         static function bkap_updating_fixed_block_data_in_db( $product_id, $clean_fixed_block_data ) {
            
            $fixed_block_data        = $clean_fixed_block_data->bkap_fixed_block_data;
            $fixed_block_each_data   = explode( ';', $fixed_block_data );
            
            array_pop($fixed_block_each_data);
            
            $array_of_all_fixed_block_data = array();
            
            
            foreach( $fixed_block_each_data as $fixed_block_each_data_value ){
                $array_of_individual_fixed_block_data                    = explode( '&&', $fixed_block_each_data_value );
                $array_of_all_fixed_block_data[$array_of_individual_fixed_block_data[5]]['block_name']         = $array_of_individual_fixed_block_data[0];
                $array_of_all_fixed_block_data[$array_of_individual_fixed_block_data[5]]['number_of_days']     = $array_of_individual_fixed_block_data[1];
                $array_of_all_fixed_block_data[$array_of_individual_fixed_block_data[5]]['start_day']          = $array_of_individual_fixed_block_data[2];
                $array_of_all_fixed_block_data[$array_of_individual_fixed_block_data[5]]['end_day']            = $array_of_individual_fixed_block_data[3];
                $array_of_all_fixed_block_data[$array_of_individual_fixed_block_data[5]]['price']              = $array_of_individual_fixed_block_data[4];
                
            }
            
            return $array_of_all_fixed_block_data;
        }

        /**
         * Create and return an array of Price Ranges data.
         * Executed when settings are saved using either from the Booking meta box
         * or the product is saved/updated.
         *
         * @param $product_id Product ID
         * @param object $clean_price_range_data
         * @return array $array_of_all_price_range_data
         * @since 4.1.0
         */

        static function bkap_updating_price_range_data_in_db( $product_id, $clean_price_range_data ) {
            
            $price_range_data        = $clean_price_range_data->bkap_price_range_data;
            $price_range_each_data   = explode( ';;', $price_range_data );
             
            array_pop( $price_range_each_data );
             
            $array_of_all_price_range_data = array();
            
            $product_attributes       = get_post_meta( $product_id, '_product_attributes', true );

            $product_attributes_keys  = array();
            if( is_array( $product_attributes ) && $product_attributes > 0 ){
               $product_attributes_keys  = array_keys( $product_attributes );
            }
            
            foreach( $price_range_each_data as $price_range_each_data_value ){
                $array_of_individual_price_range_data = explode( '~~', $price_range_each_data_value );
                
                $key_of_array                         = end( $array_of_individual_price_range_data );
                $count                                = count( $array_of_individual_price_range_data );      
                
                if( $count > 5 ){
                    $count_new = $count - 6;
                    for( $i = 0; $i <= $count_new; $i++ ){
                        $attribute = $product_attributes_keys[ $i ];
                        $array_of_all_price_range_data[$key_of_array][ $attribute ]= $array_of_individual_price_range_data[ $i ];
                    }
                }
                
                $min_number  = ( isset( $array_of_individual_price_range_data[ $count-5 ] ) && !empty( $array_of_individual_price_range_data[ $count-5 ] ) ) ? $array_of_individual_price_range_data[ $count-5 ] : "";
                $max_number  = ( isset( $array_of_individual_price_range_data[ $count-4 ] ) && !empty( $array_of_individual_price_range_data[ $count-4 ] ) ) ? $array_of_individual_price_range_data[ $count-4 ] : "";
                $p_d_price   = ( isset( $array_of_individual_price_range_data[ $count-3 ] ) && !empty( $array_of_individual_price_range_data[ $count-3 ] ) ) ? $array_of_individual_price_range_data[ $count-3 ] : 0;
                $f_price     = ( isset( $array_of_individual_price_range_data[ $count-2 ] ) && !empty( $array_of_individual_price_range_data[ $count-2 ] ) ) ? $array_of_individual_price_range_data[ $count-2 ] : 0;
                
                $array_of_all_price_range_data[$key_of_array]['min_number']              = $min_number;
                $array_of_all_price_range_data[$key_of_array]['max_number']              = $max_number;
                $array_of_all_price_range_data[$key_of_array]['per_day_price']           = $p_d_price;
                $array_of_all_price_range_data[$key_of_array]['fixed_price']             = $f_price;
                
                 
            }
            return $array_of_all_price_range_data;
        }
            
        /**
         * This function add the fixed block dropdown on the frontend product page
         * as per the settings selected when Enable Fixed Block Booking is enabled.
         * 
         * @param $product_id - Product ID
         * 
         * @hook bkap_before_booking_form
         * @since 4.1.0
         */

        function bkap_fixed_block_booking_after_add_to_cart( $product_id ){
            
            $curr_lang = "en";
            
            // Fetching the current language of WPML or any other transaltion plugin is active.
            if ( defined('ICL_LANGUAGE_CODE') ){
                 
                if( ICL_LANGUAGE_CODE == 'en' ) {
                    $curr_lang = "en";
                } else{
                    $curr_lang = ICL_LANGUAGE_CODE;
                }
            }               
            
            //$duplicate_of     =   bkap_common::bkap_get_product_id( $post->ID );
            $duplicate_of     =   $product_id;
            $booking_settings =   get_post_meta( $duplicate_of, 'woocommerce_booking_settings', true );

            if ( ( isset( $booking_settings['booking_enable_multiple_day'] ) && $booking_settings['booking_enable_multiple_day'] == 'on' )
               && ( isset( $booking_settings['booking_fixed_block_enable'] ) && $booking_settings['booking_fixed_block_enable'] == 'booking_fixed_block_enable' ) ) {
                //print( '<div id="bkap-booking-form" class="bkap-booking-form">' );
                
                // Getting Fixed block data from the post meta.
                $results = $this->bkap_get_fixed_blocks( $duplicate_of );
                
                if ( isset( WC()->cart ) ) {

                    foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
                                    
                           if( array_key_exists( 'bkap_booking', $values ) ) {
                                    $booking       = $values['bkap_booking'];
                                    $hidden_date   = $booking[0]['hidden_date'];
                                    
                                    if( array_key_exists( "hidden_date_checkout", $booking[0] ) ) {
                                        $hidden_date_checkout = $booking[0]['hidden_date_checkout'];
                                    }
                            }
                                break;
                    }
                }
                
                // Getting first key of $result array
                reset($results);
                $first_key = key($results);
                                    
                if ( count( $results ) > 0) {

                    printf ('<label>'. __( get_option( "book_fixed-block-label" ), "woocommerce-booking" ) . ': </label>
                             <br/>
                             <select name="block_option" id="block_option" >' );
                    
                    foreach ( $results as $key => $value ) {
                        
                        $name_msg     = 'bkap_fixed_' . $key . '_block_name';
                        $block_name   = $value['block_name'];
                        $block_name   = $this->bkap_get_translated_texts( $name_msg, $block_name, $curr_lang );
                        
                        printf('<option value=%s&%s&%s>%s</option>', $value['start_day'], $value['number_of_days'], $value['price'], $block_name );
                    } 
                    printf ('</select> <br/> <br/>');
                
                if ( count( $results ) >= 0 ) {
                    $sd=$results[$first_key]['start_day'];
                    $nd=$results[$first_key]['number_of_days'];
                    $pd=$results[$first_key]['price'];
                }
                echo ' <input type="hidden" id="block_option_enabled"  name="block_option_enabled" value="on"/> <input type="hidden" id="block_option_start_day"  name="block_option_start_day" value="'.$sd.'"/> <input type="hidden" id="block_option_number_of_day"  name="block_option_number_of_day" value="'.$nd.'"/><input type="hidden" id="block_option_price"  name="block_option_price" value="'.$pd.'"/>';  
                } else  {
                    $number_of_fixed_price_blocks = 0;
                    echo ' <input type="hidden" id="block_option_enabled"  name="block_option_enabled" value="off"/> <input type="hidden" id="block_option_start_day"  name="block_option_start_day" value=""/> <input type="hidden" id="block_option_number_of_day"  name="block_option_number_of_day" value=""/><input type="hidden" id="block_option_price"  name="block_option_price" value=""/>';
                }
              }
        }

        /**
        * This function adds the price div to display the Booking Price
        * on the Product page.
        * 
        * @param integer $product_id - Product ID
        * 
        * @hook bkap_display_price_div
        * @since 4.1.0
        */

        function bkap_fixed_block_display_price( $product_id ) {
            
            $booking_settings = get_post_meta( $product_id, 'woocommerce_booking_settings', true );
            
            if ( isset( $_POST['booking_fixed_block_enable'] ) && $_POST['booking_partial_payment_radio'] != '' ):
                $currency_symbol   = get_woocommerce_currency_symbol();
                if( has_filter( 'bkap_show_addon_price' ) ) {
                    $show_price = apply_filters( 'bkap_show_addon_price', '' );
                } else {
                    $show_price = 'show';
                }
                print('<div id="show_addon_price" name="show_addon_price" class="show_addon_price" style="display:'.$show_price.';">'.$currency_symbol.' 0</div>');
            endif;
        }
        
        /**
         * This function is to display Block Pricing radio button settings
         * in Booking meta box->Block Pricing tab.
         * 
         * @param integer $duplicate_of - Product ID
         * @since 4.1.0 
         **/

        function bkap_enable_price_by_range_or_fixed_block_booking( $duplicate_of ){
            
            $bkap_fixed_blocks_check = "";
            $bkap_price_ranges_check = "";
            
            $bkap_fixed_blocks =   get_post_meta( $duplicate_of, '_bkap_fixed_blocks', true );
            $bkap_price_ranges =   get_post_meta( $duplicate_of, '_bkap_price_ranges', true );
            
            if( isset( $bkap_fixed_blocks ) && $bkap_fixed_blocks != "" )
                $bkap_fixed_blocks_check = "checked";
                
            if( isset( $bkap_price_ranges ) && $bkap_price_ranges != "" )
                $bkap_price_ranges_check = "checked";
            
            ?>
            <div id="enable_block_pricing_section" class="block_pricing_flex_main">
                    
                <div class="block_pricing_flex_child pricing_left">
                    <label><?php _e( 'Block Pricing', 'woocommerce-booking' );?></label>
                </div>
                
                <div class="block_pricing_flex_child pricing_center block_type_main"> 
                    <div class="block_pricing_flex_child_block_type" >
                        <input type="radio" id="booking_fixed_block_enable" name="bkap_enable_block_pricing_type" value="booking_fixed_block_enable" onclick="bkap_save_fixed_block_settings()" <?php echo $bkap_fixed_blocks_check; ?>></input>
                        <label for="booking_fixed_block_enable"> <?php _e( 'Fixed Block Booking', 'woocommerce-booking' );?> </label>
                    </div>
                    
                    <div class="block_pricing_flex_child_block_type" >
                       <input type="radio" id="booking_block_price_enable" name="bkap_enable_block_pricing_type" value="booking_block_price_enable" onclick="bkap_save_price_by_range_settings()" <?php echo $bkap_price_ranges_check; ?>></input>
                       <label for="booking_block_price_enable"> <?php _e( 'Price By Range Of Nights', 'woocommerce-booking' );?> </label>
                    </div>
                </div>
                
                <div class="block_pricing_flex_child pricing_right bkap_help">
                    <a href="#" class="bkap_clear_block_pricing_selection" style="font-size: 12px;font-style: italic;" >Clear selection</a>
                    
                    <img class="help_tip" width="16" height="16"  data-tip="<?php _e( 'Select Fixed Block Booking option if you want customers to book or rent this product for fixed number of days. </br> Select Price By Range Of Nights option if you want to charge customers different prices for different day ranges.', 'woocommerce-booking' );?>" src="<?php echo plugins_url() ;?>/woocommerce/assets/images/help.png" />
                </div>
                     
              </div>
            
            <?php 
        }
        
        /**
         * Price By Range Of Days table in Booking meta box->Block Pricing.
         *
         * @param $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        public static function bkap_price_range_booking_table( $product_id, $booking_settings ){
            
            $bkap_price_range_option     = get_post_meta( $product_id, '_bkap_price_ranges', true );
            $bkap_fixed_price_option     = get_post_meta( $product_id, '_bkap_fixed_blocks', true );
            $display_price_range_table   = "display:none";
            
            if( $bkap_price_range_option == "" && $bkap_fixed_price_option == "" ){
                $display_price_range_table = "";
            }
            
            $disable_block_pricing_class = "bkap_disable_block_pricing";
             
            if( isset( $bkap_price_range_option ) && $bkap_price_range_option == "booking_block_price_enable" ){
                $disable_block_pricing_class = "";
                $display_price_range_table   = "";
            }
            
            $attribute_count       = 0;
            $product_attributes    = get_post_meta( $product_id, '_product_attributes', true );
            
            if( is_array( $product_attributes ) && $product_attributes > 0 ){
               $attribute_count = count( $product_attributes ); 
               $attribute_count += 1;
            }else{
               $attribute_count  = 2;
            }
            ?>
            
            <!-- Table for Price by range of days -->
            <div class="bkap_price_range_booking <?php echo $disable_block_pricing_class; ?>" style="<?php echo $display_price_range_table; ?>">
                 
                <div>
                   <h4><?php _e( 'Price by range of nights :', 'woocommerce-booking' ); ?></h4>
                </div>
                
                <table id="bkap_price_range_booking_table" >
                
                <?php
                 
                 self::bkap_get_price_range_booking_heading( $product_id, $booking_settings ); // Adding Heading of the table.
                 self::bkap_get_price_range_base_data( $product_id, $booking_settings ); // Adding default one hidden row in the table based on which we will add new ranges.
                 self::bkap_get_price_range_booking( $product_id, $booking_settings ); // Displaying the table based on the added ranges.
                 
                ?>
                
                <tr style="padding:5px; border-top:2px solid #eee">
                   <td colspan="<?php echo $attribute_count; ?>" style="border-right: 0px;">
                       <i>
                           <small><?php _e( 'Create block ranges and its per day and/or fixed price.', 'woocommerce-booking' ); ?></small>
                       <i>
                   </td>
                   <td colspan="4" align="right" style="border-left: none;">
                   <button type="button" class="button-primary bkap_save_price_range" onclick="bkap_save_price_ranges()"><i class="fa fa-floppy-o fa-lg"></i> <?php _e( 'Save' , 'woocommerce-booking' );?></button>
                   <button type="button" class="button-primary bkap_add_new_price_range"><i class="fa fa-plus" aria-hidden="true"></i> <?php _e( 'Add New Range' , 'woocommerce-booking' );?></button></td>
                </tr>
                
                </table>
            </div>
            <?php 
        }
        
        /**
         * Echoes the Column Headers for the Price Ranges table in 
         * Booking meta box->Block Pricing
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        static function bkap_get_price_range_booking_heading( $product_id, $booking_settings ){
            
            $currency_symbol     = get_woocommerce_currency_symbol();
            $product_attributes  = get_post_meta( $product_id, '_product_attributes', true );
            $width               = "";
            $count_attributes    = 0;
                            
            if ( is_array( $product_attributes ) && count( $product_attributes ) > 0 ) {
                $count_attributes = count( $product_attributes );
            }
            
            $count_attributes += 4;
            $available_width  = 90;
            
            $width_size       = ($available_width/$count_attributes);
            $width_size       = round($width_size, 2);
            $width            = 'width="'.$width_size.'%"';
            
            $product          = wc_get_product( $product_id );
            $product_type     = $product->get_type();
            
            ?>
            <tr>
            <?php 
                if ( $product_attributes != '' && $product_type == "variable" ) {
                    foreach ( $product_attributes as $k => $v )
                    {
                        $attribute_name = wc_attribute_label( $v["name"] );
                        ?>
                        <th <?php echo $width; ?>><?php _e( $attribute_name, 'woocommerce-booking' ); ?></th>
                    <?php
                    }
                }
                ?>
                <th <?php echo $width; ?>><?php _e( 'Minimum Day', 'woocommerce-booking' );?></th>
                <th <?php echo $width; ?>><?php _e( 'Maximum Day', 'woocommerce-booking' );?></th>
                <th <?php echo $width; ?>><?php _e( "Per Day ($currency_symbol)", 'woocommerce-booking' );?></th>
                <th <?php echo $width; ?>><?php _e( "Fixed ($currency_symbol)", 'woocommerce-booking' );?></th>
                
                <th width="4%" id="bkap_price_range_all_close" class="bkap_remove_all_price_ranges" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></th>
            </tr>
            <?php
        }
        
        /**
         * Fixed Blocks table in Booking meta box->Block Pricing.
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        public static function bkap_fixed_block_booking_table( $product_id, $booking_settings ){
            
            $bkap_fixed_block_option     = get_post_meta( $product_id, '_bkap_fixed_blocks', true );
            $bkap_price_range_option     = get_post_meta( $product_id, '_bkap_price_ranges', true );
            
           
            
            $display_fixed_block_table   = "display:none";
            if( $bkap_fixed_block_option == "" && $bkap_price_range_option == "" ){
                $display_fixed_block_table = "";
            }
            
            $disable_block_pricing_class = "bkap_disable_block_pricing";
            
            if( isset( $bkap_fixed_block_option ) && $bkap_fixed_block_option == "booking_fixed_block_enable" ){
               $disable_block_pricing_class = "";
               $display_fixed_block_table   = "";
            }
            
        ?>
        
        <!-- Table for Fixed Block Booking -->
        <div class="bkap_fixed_block_booking <?php echo $disable_block_pricing_class; ?>" style="<?php echo $display_fixed_block_table; ?>">
        
            <div>
                <h4><?php _e( 'Fixed Blocks Booking :', 'woocommerce-booking' ); ?></h4>
            </div>
        
            <table id="bkap_fixed_block_booking_table" >
                <?php
                 // add date and time setup.
                 self::bkap_get_fixed_block_booking_heading( $product_id, $booking_settings ); 
                 self::bkap_get_fixed_block_booking_base_data( $product_id, $booking_settings );
                 self::bkap_get_fixed_block_booking( $product_id, $booking_settings );
                ?>
                
                <tr style="padding:5px; border-top:2px solid #eee">
                   <td colspan="3" style="border-right: 0px;">
                       <i>
                           <small><?php _e( 'Create fixed blocks of booking and its price.', 'woocommerce-booking' ); ?></small>
                       <i>
                   </td>
                   <td colspan="3" align="right" style="border-left: none;">
                   <button type="button" class="button-primary bkap_save_fixed_block" onclick="bkap_save_fixed_blocks()"><i class="fa fa-floppy-o fa-lg"></i> <?php _e( 'Save' , 'woocommerce-booking' );?></button>
                   <button type="button" class="button-primary bkap_add_new_fixed_block"><i class="fa fa-plus" aria-hidden="true"></i> <?php _e( 'Add New Block' , 'woocommerce-booking' );?></button></td>
                </tr>
            </table>
        
        </div>
        <?php   
        }
        
        /**
         * Echoes the Column Headers for the Fixed Blocks table in 
         * Booking meta box->Block Pricing
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        static function bkap_get_fixed_block_booking_heading( $product_id, $booking_settings ){
            $currency_symbol   = get_woocommerce_currency_symbol();
        ?>
            <tr>
                <th width="25%"><?php _e( 'Block Name', 'woocommerce-booking' );?></th>
                <th width="10%"><?php _e( 'Days', 'woocommerce-booking' );?></th>
                <th width="20%"><?php _e( 'Start Day', 'woocommerce-booking' );?></th>
                <th width="20%"><?php _e( 'End Day', 'woocommerce-booking' );?></th>
                <th width="20"><?php _e( "Price (".$currency_symbol.")", 'woocommerce-booking' );?></th>
                <td width="4%" id="bkap_fixed_block_all_close" class="bkap_remove_all_fixed_blocks" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></th>
            </tr>
        <?php
        }
        
        /**
         * Adds a base table row for Booking meta box->Block Pricing->Fixed Blocks. 
         * Used when adding a new row to the table.
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @global array $bkap_fixed_days array of weeekdays and its number 
         * @since 4.1.0
         **/
        static function bkap_get_fixed_block_booking_base_data( $product_id, $booking_settings ) {
            global $bkap_fixed_days;
        ?>
        
        <tr id="bkap_default_fixed_block_row" style="display: none;">
            <td width="25%">
                <input type="text" id="booking_block_name" name="booking_block_name" style="width:100%" placeholder="Enter Name of Block"></input>
            </td>
            <td width="10%">
                <input type="number" id="number_of_days" name="number_of_days" min=0 style="width:100%"></input>
            </td>
            <td width="20%">
                <select id="start_day" name="start_day" style="width:100%">
                    <?php 
                    $days = $bkap_fixed_days;
                    foreach ( $days as $dkey => $dvalue ) {
                    ?>
                    <option value="<?php echo $dkey; ?>"><?php echo $dvalue; ?></option>
                    <?php 
                    }
                    ?>
                </select>
            </td>
            <td width="20%">
                <select id="end_day" name="end_day" style="width:100%">
                <?php 
                foreach ( $days as $dkey => $dvalue ) {
                    ?>
                    <option value="<?php echo $dkey; ?>"><?php echo $dvalue; ?></option>
                    <?php 
                }
                ?>
                </select>
             </td>
            <td width="20%"><input type="text" id="fixed_block_price" name="fixed_block_price" style="width:100%" placeholder="Block Price"></input></td>
            
            <td width="4%" id="bkap_fixed_block_close" class="" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></td>
        </tr>
        
        <?php 
        }
        
        /**
         * Adds a base table row for Booking meta box->Block Pricing->Price Ranges. 
         * Used when adding a new row to the table.
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        static function bkap_get_price_range_base_data( $product_id, $booking_settings ) {
            
            $product_attributes    = get_post_meta( $product_id, '_product_attributes', true );
            $i                     = 1;
            $j                     = 1;
            $product               = wc_get_product( $product_id );
            $product_type          = $product->get_type();
            
            ?>
            <tr id="bkap_default_price_range_row" style="display: none;">
            <?php 
            if( $product_attributes != '' && $product_type == "variable" ) {
                
                foreach( $product_attributes as $key => $value ) {
                    
                        if ( $value['is_taxonomy'] ) {
                            $value_array = wc_get_product_terms( $product_id, $value['name'], array( 'fields' => 'names' ) );
                        }else{
                            $value_array  =  explode( ' | ', $value['value'] );
                        }
                            
                        print( '<td><select name="attribute_'.$i.'" id="attribute_'.$i.'" value="" style="width:100%">' );
            
                        $j            =  1;
            
                        foreach( $value_array as $k => $v ) {
                            $attr_value  = trim( $v );
                            print( '<option name="option_attribute_'.$i.'_'.$j.'" id="option_attribute_'.$i.'_'.$j.'" value="'.htmlspecialchars( $attr_value ).'">'.$v.'</option>' );
                        }
                        
                        print( '</select></td>' );
                        $i++;
                        $j++;                      
                }
            }
            ?>
                <td>
                    <input type="number" id="number_of_start_days" name="number_of_start_days" min=0 style="width:100%"></input>
                </td>
                <td>
                    <input type="number" id="number_of_end_days" name="number_of_end_days" min=0 style="width:100%"></input>
                </td>
                <td >
                    <input type="text" id="per_day_price" name="per_day_price" style="width:100%"></input>
                </td>
                <td>
                    <input type="text" id="fixed_price" name="fixed_price" style="width:100%"></input>
                </td>
                
                <td width="4%" id="bkap_price_range_close" class="" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></td>
            </tr>
        
        <?php 
        }
        
        /**
         * Displays the existing Price Ranges in Booking meta box->Block Pricing->Price Ranges
         * as per the saved data.
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @since 4.1.0
         **/

        static function bkap_get_price_range_booking( $product_id, $booking_settings ){
            
            $result      = get_post_meta( $product_id, '_bkap_price_range_data', true );
            $results     = ( isset( $result ) && $result != "" ) ? $result : array();
            $block_count = count( $results );
            $row_number  = 0;
            $max_key     = 0;
            $_product    = wc_get_product( $product_id );
            
            if( $block_count != 0 ){
                $max_key     = max( array_keys( $results ) );
            }
            
            
            $product_attributes = "";
            if( $_product->is_type( 'variable' ) ){
                
                $product_attributes      = get_post_meta( $product_id, '_product_attributes', true );
                
                if( $product_attributes != "" )
                $product_attributes_keys = array_keys( $product_attributes );
            }
            
            $c = 0;
            while( $row_number <= $max_key ) {
                
                if( !in_array( $row_number, array_keys( $results ) ) ){
                    $row_number++;
                    continue;
                }
                
                $i = 0;
                $number_of_columns = count( $results[$row_number] );
                $min_number = $max_number = $per_day_price = $fixed_price = "";
                 
                $min_number          =   $results[$row_number]['min_number'];
                $max_number          =   $results[$row_number]['max_number'];
                $per_day_price       =   $results[$row_number]['per_day_price'];
                $fixed_price         =   $results[$row_number]['fixed_price'];
                
                $bkap_row_toggle         = '';
                $bkap_row_toggle_display = '';
                 
                if( $c > 4 ){
                    $bkap_row_toggle = "bkap_price_range_row_toggle";
                    $bkap_row_toggle_display = 'style="display:none;"';
                }
                
                
                ?>
                <tr id="bkap_price_range_row_<?php echo $row_number; ?>" class="<?php echo $bkap_row_toggle; ?>" <?php echo $bkap_row_toggle_display; ?>>
                <?php 
                    if( $product_attributes != '' && $_product->is_type( 'variable' ) ) {
                        
                        foreach( $product_attributes as $key => $value ) {
                           
                                if ( $value['is_taxonomy'] ) {
                                    $value_array = wc_get_product_terms( $product_id, $value['name'], array( 'fields' => 'names' ) );
                                }else{
                                    $value_array  =  explode( ' | ', $value['value'] );
                                }
                                    
                                print( '<td><select name="attribute_'.$i.'_'.$row_number.'" id="attribute_'.$i.'_'.$row_number.'" value="" style="width:100%">' );
                    
                                $j            =  1;
                    
                                foreach( $value_array as $k => $v ) {
                                    $attr_value      = trim( $v );
                                    $attribute_key   = $product_attributes_keys[$i];
                                    $selected        = "";
                                
                                    if( $attr_value == $results[$row_number][$attribute_key] ){
                                      $selected = "selected";  
                                    }
                                    print( '<option name="option_attribute_'.$i.'_'.$j.'" id="option_attribute_'.$i.'_'.$j.'" value="'.htmlspecialchars( $attr_value ).'" '.$selected.'>'.$v.'</option>' );
                                }
                                
                                print( '</select></td>' );
                                $i++;
                                $j++;                      
                        }
                    }
                    ?>
                    <td>
                        <input type="number" id="number_of_start_days_<?php echo $row_number; ?>" name="number_of_start_days" min=0 style="width:100%" value="<?php echo $min_number; ?>"></input>
                    </td>
                    <td>
                        <input type="number" id="number_of_end_days_<?php echo $row_number; ?>" name="number_of_end_days" min=0 style="width:100%" value="<?php echo $max_number; ?>"></input>
                    </td>
                    <td >
                        <input type="text" id="per_day_price_<?php echo $row_number; ?>" name="per_day_price" style="width:100%" value="<?php echo $per_day_price; ?>"></input>
                    </td>
                    <td>
                        <input type="text" id="fixed_price_<?php echo $row_number; ?>" name="fixed_price" style="width:100%" value="<?php echo $fixed_price; ?>"></input>
                    </td>
                    
                    <td width="4%" id="bkap_price_range_close_<?php echo $row_number; ?>" class="" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></td>
                </tr>
            
                <?php 
                
                
                $row_number++;
                $c++;
            }
            
            if ( $block_count > 5 ){
            ?>
            <tr style="">
               <td colspan="<?php echo $number_of_columns + 1 ; ?>">
               <span class="bkap_expand-close">
                   <a href="#" class="bkap_price_range_expand_all"><?php echo __( 'Expand', 'woocommerce-booking' ); ?></a> / <a href="#" class="bkap_price_range_close_all"><?php echo __( 'Close', 'woocommerce-booking' ); ?></a>
               </span>
               </td>
            </tr>
            <?php
            }
            
        }
        
        /**
         * Displays the existing Fixed Blocks in Booking meta box->Block Pricing->Fixed Blocks
         * as per the saved data.
         *
         * @param integer $product_id - Product ID
         * @param array $booking_settings - Booking Settings for the product.
         * @global array $bkap_fixed_days Array of weekdays and its numbers
         * @global object $post WP_Post
         * @global object $wpdb Global wpdb object
         *
         * @since 4.1.0
         **/

        static function bkap_get_fixed_block_booking( $product_id, $booking_settings ) {
            global $bkap_fixed_days;
            
            global $post, $wpdb;
            
            $post_id = 0;
            
            if ( isset( $post->ID ) ) {
                $post_id = $post->ID;
            }
            
            $duplicate_of     =   bkap_common::bkap_get_product_id( $post_id );
            
            if ( isset( $duplicate_of ) ) $post_id = $duplicate_of;
            
            $result      = get_post_meta( $post_id, '_bkap_fixed_blocks_data', true );
            $results     = ( isset( $result ) && $result != "" ) ? $result : array();
            $block_count = count( $results );
            $max_key     = 0;
            
            if( $block_count != 0 ){
                $max_key     = max( array_keys( $results ) );
            }
             
            $row_number = 0;
            $i = 0;
            
            while( $row_number <= $max_key ) {
                
                if( !in_array( $row_number, array_keys( $results ) ) ){
                    $row_number++;
                    continue;
                }
                
                $block_name = $number_of_days = $start_day = $end_day = $price = "";
                
                $block_name      =   $results[$row_number]['block_name'];
                $number_of_days  =   $results[$row_number]['number_of_days'];
                $start_day       =   $results[$row_number]['start_day'];
                $end_day         =   $results[$row_number]['end_day'];
                $price           =   $results[$row_number]['price'];
                
                
                $bkap_row_toggle         = '';
                $bkap_row_toggle_display = '';
                
                if( $i > 4 ){
                    $bkap_row_toggle = "bkap_fixed_row_toggle";
                    $bkap_row_toggle_display = 'style="display:none;"';
                }
                
            ?>
                    
            <tr id="bkap_fixed_block_row_<?php echo $row_number; ?>" class="<?php echo $bkap_row_toggle;?>" <?php echo $bkap_row_toggle_display;?>>
                <td width="25%">
                    <input type="text" id="booking_block_name_<?php echo $row_number; ?>" name="booking_block_name" style="width:100%" placeholder="Enter Name of Block" value="<?php echo $block_name;?>"></input>
                </td>
                <td width="10%">
                    <input type="number" id="number_of_days_<?php echo $row_number; ?>" name="number_of_days" min=0 style="width:100%" value="<?php echo $number_of_days;?>"></input>
                </td>
                <td width="20%">
                
                    <select id="start_day_<?php echo $row_number; ?>" name="start_day" style="width:100%">
                        <?php 
                        $days = $bkap_fixed_days;
                        foreach ( $days as $dkey => $dvalue ) {
                            $start_selected = "";
                            //echo gettype( $dkey ) . ' - ' . gettype( $start_day );
                            if( (string)$dkey == (string)$start_day ) {
                                $start_selected = "selected";
                            }
                            ?><option value="<?php echo $dkey; ?>" <?php echo $start_selected; ?>><?php echo $dvalue; ?></option> <?php 
                        }
                        ?>
                    </select>
                </td>
                <td width="20%">
                    <select id="end_day_<?php echo $row_number; ?>" name="end_day" style="width:100%">
                    <?php 
                    foreach ( $days as $dkey => $dvalue ) {
                        $end_selected = "";
                        if( (string)$dkey == (string)$end_day ){
                          $end_selected = "selected";
                          
                        }
                        ?><option value="<?php echo $dkey; ?>" <?php echo $end_selected; ?>><?php echo $dvalue; ?></option> <?php
                    }
                    ?>
                    </select>
                 </td>
                <td width="20%"><input type="text" id="fixed_block_price_<?php echo $row_number; ?>" name="fixed_block_price" style="width:100%" placeholder="Block Price" value="<?php echo $price; ?>"></input></td>
                
                <td width="4%" id="bkap_fixed_block_close_<?php echo $row_number; ?>" class="" style="text-align: center;cursor:pointer;"><i class="fa fa-trash" aria-hidden="true"></i></td>
            </tr>
        
            <?php
            $row_number++;
            $i++;
            }

            if ( $block_count > 5 ){
            ?>
            <tr style="">
               <td colspan="6">
               <span class="bkap_expand-close">
                   <a href="#" class="bkap_fixed_expand_all"><?php echo __( 'Expand', 'woocommerce-booking' ); ?></a> / <a href="#" class="bkap_fixed_close_all"><?php echo __( 'Close', 'woocommerce-booking' ); ?></a>
               </span>
               </td>
            </tr>
            <?php
                }
        }
            
        /**
        * This function is used to clculate and show the booking price 
        * when Fixed Blocks are used
        * 
        * @param integer $product_id  - Product ID
        * @param string $product_type - Product Type
        * @param integer $variation_id - Variation ID, 0 for simple products
        * @param string $checkin_date - Booking start date
        * @param string $checkout_date - Booking end date
        * @param string $currency_selected - Currency such as USD, AUD etc.
        * 
        * @hook bkap_display_multiple_day_updated_price
        * @since 4.1.0
        */

        function bkap_fixed_block_show_updated_price( $product_id, $product_type, $variation_id, $checkin_date, $checkout_date, $currency_selected ) {
            
            if ( !isset( $_POST['variable_blocks'] ) || ( isset( $_POST['variable_blocks'] ) && $_POST['variable_blocks'] != 'Y' ) ) {
                
                $duplicate_of     =   bkap_common::bkap_get_product_id( $product_id );
                $booking_settings =   get_post_meta( $duplicate_of, 'woocommerce_booking_settings', true );
                
               // $booking_settings = get_post_meta( $product_id, 'woocommerce_booking_settings', true );
                
                if ( $product_type == 'variable' ) {
                    
                    if ( $variation_id != '' ) {
                        $price = bkap_common::bkap_get_price( $product_id, $variation_id, $product_type, $checkin_date, $checkout_date );

                        if ( isset( $booking_settings['booking_fixed_block_enable'] ) && $booking_settings['booking_fixed_block_enable']  == "booking_fixed_block_enable" ) {
                            $price += $_POST['block_option_price'];
                        }
                    }
                    else {
                        $price = 0;
                    }
                } else {
                    
                    if ( isset( $booking_settings['booking_fixed_block_enable'] ) && $booking_settings['booking_fixed_block_enable']  == "booking_fixed_block_enable" ) {
                        $price = $_POST['block_option_price'];
                        
                    }else {
                        $price = bkap_common::bkap_get_price( $product_id, $variation_id, $product_type );
                    }
                }
            }else {
                
                if ( isset( $_POST['price'] ) ) {
                    $price = $_POST['price'];
                }
                
            }
            $error_message = __( "Please select an option.", "woocommerce-booking" );
            if ( function_exists( 'is_bkap_deposits_active' ) && is_bkap_deposits_active() || function_exists( 'is_bkap_seasonal_active' ) && is_bkap_seasonal_active() ) {
                if ( isset( $price ) && $price != '' ) {
                    $_POST['price'] = $price;
                }
                else {
                    print( 'jQuery( "#show_time_slot" ).html( "' . addslashes( $error_message ) . '");' );
                    die();
                }
            }
            else {
                
                if ( isset( $price ) && $price !== '' ) {
                    $_POST['price'] = $price;
                }
                else {
                    print( 'jQuery( "#show_time_slot" ).html( "' . addslashes( $error_message ) . '");' );
                    die();
                }
            }
        }
            
        /**
         * This function is used to clculate and show the booking price
         * when Price Ranges are used.
         *
         * @param integer $product_id  - Product ID
         * @param string $product_type - Product Type
         * @param integer $variation_id - Variation ID, 0 for simple products
         * @param string $checkin_date - Booking start date
         * @param string $checkout_date - Booking end date
         * @param string $currency_selected - Currency such as USD, AUD etc.
         *
         * @hook bkap_display_multiple_day_updated_price
         * @since 4.1.0
         */

        public function bkap_price_range_show_updated_price( $product_id, $product_type, $variation_id_to_fetch, $checkin_date, $checkout_date, $currency_selected ) {
            
            $variation_id       =   $variation_id_to_fetch;
            $number_of_days     =   strtotime( $checkout_date ) - strtotime( $checkin_date );
            
            $booking_settings   =   get_post_meta( $product_id, 'woocommerce_booking_settings', true );
            $number             =   floor( $number_of_days/( 60 * 60 * 24 ) );
            
            if ( isset( $booking_settings['booking_charge_per_day'] ) && $booking_settings['booking_charge_per_day'] == 'on' ){
                $number = $number + 1;
            }
                
            if( $number == 0 && isset( $booking_settings['booking_same_day'] ) && $booking_settings['booking_same_day'] == 'on' ) {
                $number = 1;
            }
            
            if ( $number <= 0 ) {
                $number = 1;
            }
            
            if ( $product_type == 'variable' ) {
                $variations_selected   = array();
                $string_explode        = '';
                $product_attributes    = get_post_meta( $product_id, '_product_attributes', true );
                $i                     = 0;
                
                foreach( $product_attributes as $key => $value ) {
                    
                    if( isset( $_POST['attribute_selected'] ) ) {
                        $string_explode = explode( "|", $_POST['attribute_selected'] );
                    }else{
                        $string_explode = array();
                    }
                    
                    if ( $value['is_taxonomy'] ) {
                        $value_array = wc_get_product_terms( $product_id, $value['name'], array( 'fields' => 'names' ) );
                    }else{
                        $value_array  =  explode( ' | ', $value['value'] );
                    }
                    
                    $s_value      = '';
                    
                    foreach( $string_explode as $sk => $sv ) {
                        
                        if( $sv == '' ){
                            unset( $string_explode[ $sk ] );
                        }
                    }
                
                    foreach( $value_array as $k => $v ){
                        $string1 = str_replace(" ", "", $v );
                        
                        if(count($string_explode) > 0) {
                            $string2 = str_replace( " ", "", $string_explode[ $i+1 ]);
                        } else {
                            $string2 = '';
                        }
                        
                        if( strtolower( addslashes( $string1 ) ) == strtolower( $string2 ) /* $pos_value != 0*/) {
                
                            if( substr( $v, 0, -1 ) === ' ' ) {
                                $result                    = rtrim( $v, " " );
                                $variations_selected[$i]   = $result;
                            }
                            
                            if( substr( $v, 0, 1 ) === ' ' ) {
                                $result                    = preg_replace( "/ /", "", $v, 1 );
                                $variations_selected[$i]   = addslashes( $result );
                            } else {
                                $variations_selected[$i] = addslashes( $v );
                            }
                        }
                    }
                    $i++;
                }
            }
            else {
                $variations_selected = array();
            }
            
            $price = $this->price_range_calculate_price( $product_id, $product_type, $variation_id, $number, $variations_selected );
            
            if ( function_exists('is_bkap_deposits_active') && is_bkap_deposits_active() || function_exists('is_bkap_seasonal_active') && is_bkap_seasonal_active() ) {
                
                if ( isset( $price ) && $price != '' ) {
                    
                    if ( isset( $_POST['variable_blocks'] ) && $_POST['variable_blocks'] == 'Y' ) {
                        $_SESSION['variable_block_price'] = $_POST['price'] = $price;
                    }else {
                        $_SESSION['variable_block_price'] =  $_POST['price'] = '';
                    }
                }else {
                    $error_message = __( "Please select an option.", "woocommerce-booking" );
                    print( 'jQuery( "#show_time_slot" ).html( "' . addslashes( $error_message ) . '");' );
                    die();
                }
            }else {
                
                if ( isset( $_POST['variable_blocks'] ) && $_POST['variable_blocks'] == 'Y' ) {
                    $_SESSION['variable_block_price'] = $price;
                    $_POST['price']                   = $price;
                }else {
                    $_SESSION['variable_block_price'] =  $_POST['price'] = '';
                }
                
            }
            
        }
        
        /**
         * Returns the booking price applicable when Price Ranges is enabled.
         * 
         * @param $product_id - Product ID
         * @param string $product_type - Product Type
         * @param integer $variation_id - Variation ID, 0 for simple products.
         * @param integer $number - Number of nights being booked
         * @param array $variations_selected - Attributes selected and their values.
         *
         * @since 4.1.0
         *
         * @return string $price Price based on the price by range
         */

        public static function price_range_calculate_price( $product_id, $product_type, $variation_id, $number, $variations_selected ) {
            
            $price               = 0;
            $results_price       = array();
            $price_range         = get_post_meta( $product_id, '_bkap_price_ranges', true );
            $price_range_data    = get_post_meta( $product_id , '_bkap_price_range_data', true );
            $_product            = wc_get_product( $product_id );
            
           
            if ( $product_type == 'variable' ) {
                
                if( $price_range == "booking_block_price_enable" && $price_range_data != "" ){
                    
                    $bkap_post                        = $_POST; // Getting all the data from 
                    $attribute_string            = "attribute_";
                    $attribute_variation_pair    = array();
                    
                    // Preparing array for attribute and its value
                    // so that in post meta array we can check for that combination 
                    foreach( $bkap_post as $post_key => $post_value ){
                        
                        if( strpos( $post_key, $attribute_string ) !== false ) {
                            
                            $p_key = str_replace( $attribute_string,"", $post_key );
                            $attribute_variation_pair[ $p_key ] = $post_value;
                        }
                    }
                    
                    // Removing attribute_selected from the attribute array so we got the final array.
                    array_shift( $attribute_variation_pair ); 

                    // Modify the array to ensure Attribute names are used instead of slugs.
                    foreach( $attribute_variation_pair as $a_name => $a_slug ) {
                        $term = get_term_by('slug', $a_slug, $a_name );
                        if( false !== $term )
                            $attribute_variation_pair[ $a_name ] = $term->name;
                    }
                    
                    $_POST['fixed_price'] = $_POST['variable_blocks'] = "N";
                    
                    $result_array = $results =  array();
                    
                    // Looping through post meta and checking if there is range available
                    // for selected variation and min max numbers of days.
                    
                    $e = 0;
                    
                    foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                        
                        $i = 0;
                        $a_v_p_count = count( $attribute_variation_pair ); // 
                        
                        /*
                         * Looping through $attribute_variation_pair and setting $i
                         * so if the count of $attribute_variation_pair and $i is equal
                         * then combination is found in post meta for selected attributes
                         */
                        
                        foreach( $attribute_variation_pair as $a_v_p_key => $a_v_p_value ){
                            if( array_key_exists( $a_v_p_key, $price_range_data_value ) && $price_range_data_value[ $a_v_p_key ] == stripslashes( $a_v_p_value ) ) {
                                $i++; 
                            }
                        }
                        
                        /*
                         * Checking if the combination matched and selected number of days for booking
                         * is falling in min and max numbers set in range or not.
                         * If set then assign that array in $result_price
                         */
                        
                        if( $i == $a_v_p_count && $price_range_data_value['min_number'] <= $number && $price_range_data_value['max_number'] >= $number ){
                            
                            $results_price[$e] = $price_range_data_value; // here we got the range for the selection.
                        }  
                        $e++;
                    }
                    
                    // If we found the ranges in _bkap_price_range_data. 
                    if ( isset( $results_price ) && count( $results_price ) > 0 ) {
                        
                        // Looping throught the ranges and calculating the price.
                        foreach( $results_price as $k => $v ){
                        
                            if ( !empty( $results_price[ $k ] ) ){
                                $_POST['variable_blocks'] = "Y";
                                    
                                if ( $variation_id != '' ) {
                                    
                                    $price = get_post_meta( $variation_id, '_sale_price', true );
                        
                                    if ( !isset( $price ) || $price == '' || $price == 0 ){
                                        $price = get_post_meta( $variation_id, '_regular_price', true );
                                    }
                                
                                    if ( $v['fixed_price'] != 0 ){
                                        $calc_price           = get_standard_decimal_thousand_separator_price( $v['fixed_price'] );
                                        $price                = $calc_price . "-fixed";
                                        $_POST['fixed_price'] = "Y";
                                    } else {

                                        $calc_price   = get_standard_decimal_thousand_separator_price( $v['per_day_price'] );
                                        $calc_price   = $calc_price * $number;
                                        $price        = $calc_price . "-per_day";
                                    }
                                    
                                }else {
                                    $price = 0;
                                }
                            } else {
                                unset( $results_price[ $k ] );
                            }
                        }
                        
                    } else { 
                        
                        /* You will come here when number of days selected for booking do not have any matching range in data
                         * then see the last matching range based on nearest max day in other range.
                         */
                        
                        // Finding the ranges which have max days lower than selected number of days for booking.
                        foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                        
                            $i = 0;
                            $a_v_p_count = count( $attribute_variation_pair );
                        
                            foreach( $attribute_variation_pair as $a_v_p_key => $a_v_p_value ){
                                if( array_key_exists( $a_v_p_key, $price_range_data_value ) && $price_range_data_value[ $a_v_p_key ] == stripslashes( $a_v_p_value ) ) {
                        
                                    $i++;
                                }
                            }
                        
                            if( $i == $a_v_p_count && $price_range_data_value['min_number'] <= $number ){
                                 
                                $results_price[$e] = $price_range_data_value;
                            }
                            $e++;
                        }
                        
                        // In $results_price array all the ranges will be added which 
                        // have lower max days compare to selected days for booking.
                        
                        /* 
                         * Sorting the array so the price of the range will be calculated correctly.
                         * Issue was occurring when range of days not added sequencially
                         */
                        
                        foreach ( $results_price as $kk => $val ) {
                            $ab[ $kk ] =  $val['max_number'];
                        }
                        
                        asort( $ab );
                        $ordered = array();
                        
                        foreach ( $ab as $key => $value ) {
                            if ( array_key_exists( $key, $results_price ) ) {
                                $ordered[ $key ] = $results_price[ $key ];
                                unset( $results_price[ $key ] );
                            }
                        }
                        
                        $results_price = $ordered; // Here we are gettting sorted array for $result_price
                                                    
                        // Looping throught the ranges and calculating the price.
                        foreach ( $results_price as $k => $v ) {
                                
                            if ( !empty( $results_price[ $k ] ) ) {
                                
                                $_POST['variable_blocks'] = "Y";
                        
                                if ( $variation_id != '' ) {
                                    $price = get_post_meta( $variation_id, '_sale_price', true );
                                        
                                    if ( !isset( $price ) || $price == '' || $price == 0 ){
                                        $price = get_post_meta( $variation_id, '_regular_price', true );
                                    }
                                        
                                    $diff_days = '';
                                        
                                    if ( $v['max_number'] < $number ){
                                        $diff_days = $number - $v['max_number'];
                        
                                        if ( $v['fixed_price'] != 0 ){
                                            $_POST['fixed_price']  = "Y";
                                            $calc_price            = $v['fixed_price'] + ( $price * $diff_days );
                                            $price                 = $calc_price .  "-fixed";
                                        } else {
                                            $calc_price            = ($v['per_day_price'] * $v['max_number']) + ($price * $diff_days);
                                            $price                 = $calc_price . "-per_day";
                                        }
                        
                                    } else {
                        
                                        if ( $v['fixed_price'] != 0 ) {
                                            $_POST['fixed_price']  = "Y";
                                            $calc_price            = get_standard_decimal_thousand_separator_price( $v['fixed_price'] );
                                            $price                 = $calc_price . "-fixed";
                                        } else {
                                            $calc_price            = get_standard_decimal_thousand_separator_price( $v['per_day_price'] );
                                            $calc_price            = $calc_price * $number;
                                            $price                 = $calc_price . "-per_day";
                                        }
                                    }
                                }
                                else {
                                    $price = 0;
                                }
                            } else {
                                unset( $results_price[ $k ] );
                            }
                        }
                        
                        // If no result found then simply set price as variation price.
                        if ( count( $results_price ) == 0 ) {
                            $price = 0;
                            
                            if ( $variation_id != '' ) {
                                $price = get_post_meta( $variation_id, '_sale_price', true );
                                
                                if ( !isset( $price ) || $price == '' || $price == 0) {
                                    $price = get_post_meta( $variation_id, '_regular_price', true );
                                }
                                $price .= "-";
                            }
                        }
                    }
                } else { // price by range is not enable and no record in the price by range data.
                    if ( $variation_id != '' ) {
                        $price = get_post_meta( $variation_id, '_sale_price', true );
                        
                        if ( !isset( $price ) || $price == '' || $price == 0 ){
                            $price = get_post_meta( $variation_id, '_regular_price', true );
                        }
                        $price .= "-";
                    }
                    else {
                        $price = 0;
                    }
                }
                // Code for variable product ends here
            } else {
                
                if( $price_range == "booking_block_price_enable" ){
                    // Price by range is active.
                    
                    $results_price = array();
                    
                    foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                        
                        if( $price_range_data_value['min_number'] <= $number && $price_range_data_value['max_number'] >= $number ){
                            $results_price[$price_range_data_key] = $price_range_data[$price_range_data_key];
                        }
                    }
                    
                    if ( count( $results_price ) == 0 ) {
                        // if no records found in $result price array then 
                        
                        foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                             
                            if( $price_range_data_value['min_number'] <= $number ){
                                $results_price[$price_range_data_key] = $price_range_data[$price_range_data_key];
                            }
                        }
                        
                        if ( count( $results_price ) == 0 ) {
                              $price = $_product->get_price();
                              $price .= "-";
                              
                        }else{
                            
                            // select max value from the range 
                            $max_results_block  = array();
                            foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                                if( $price_range_data_value['min_number'] <= $number ){
                                    array_push( $max_results_block , $price_range_data_value['max_number'] );
                                }
                            }
                            
                            $results_block['maximum_number_of_days'] = max( $max_results_block ); // Max day in all the range.
                            
                            $results_price = array();
                            
                            foreach( $price_range_data as $price_range_data_key => $price_range_data_value ){
                                 
                                 if( $price_range_data_value['min_number'] <= $number && $price_range_data_value['max_number'] == $results_block['maximum_number_of_days'] ){
                                     $results_price[$price_range_data_key] = $price_range_data[$price_range_data_key];
                                 }
                            }
                            
                            foreach( $results_price as $k => $v ) {
                            
                                if ( !empty( $results_price[ $k ] ) ) {
                                    
                                    $_POST['variable_blocks'] = "Y";
                                    $price = $_product->get_price();
                            
                                    if ( $results_block['maximum_number_of_days'] < $number ) {
                                        $diff_days = $number - $results_block['maximum_number_of_days'];
                                        
                                        if ( $v['fixed_price'] != 0 ) {
                                            $_POST['fixed_price']   = "Y";
                                            $calc_price             = $v['fixed_price'] + ( $price * $diff_days );
                                            $price                  = $calc_price . "-fixed";
                                        } else {
                                            $calc_price                 = get_standard_decimal_thousand_separator_price( $v['per_day_price'] );
                                            $calc_price = ( $calc_price * $results_block['maximum_number_of_days'] ) + ( $price * $diff_days );
                                            $price      = $calc_price . "-per_day";
                                        }
                                    }
                                }else {
                                    unset( $results_price[ $k ] );
                                }
                            }
                        }
                    }else{
                        
                        foreach ( $results_price as $k => $v ) {
                        
                            if( !empty( $results_price[ $k ] ) ) {
                                
                                $_POST['variable_blocks'] = "Y";
                                    
                                if ( $v['fixed_price'] != 0 ) {
                                    
                                    $_POST['fixed_price'] = "Y";
                                    $price                = get_standard_decimal_thousand_separator_price( $v['fixed_price'] );
                                    $price               .= "-fixed";
                                    $price               .= "-";
                                } else {

                                    $dtsprice = get_standard_decimal_thousand_separator_price( $v['per_day_price'] );
                                    
                                    $price    = $dtsprice * $number;

                                    
                                    //$price = number_format ( $price, wc_get_price_decimals(), $decimal_separator, $thousand_separator );
                                    $price               .= "-per_day";
                                    $price               .= "-";
                                }
                            } else {
                                unset( $results_price[ $k ] );
                            }
                        }
                    }
                     
                    
                }else {
                    // Price by range is not active.
                    $price = $_product->get_price();
                    $price .= "-";
                    
                }
            }
            
            return $price;
        }
            
            
        /**
        * This function return the count of Fixed Blocks present for a product.
        * 
        * @param integer $post_id - Product ID
        * @return integer Count of Blocks present.
        * 
        * @since 4.1.0
        */

        static function bkap_get_fixed_blocks_count( $post_id ) {
            global $wpdb;
            
            $result    = get_post_meta( $post_id, '_bkap_fixed_blocks_data', true );
            $results   = ( isset( $result ) && $result != "" ) ? $result : array();
            
            return count( $results );
        }
            
        /**
         * Returns the Fixed Blocks present for a product.
         * 
         * @param integer $post_id - Product ID
         * @return array Fixed Blocks for the product.
         * 
         * @since 4.1.0
         */

        static function bkap_get_fixed_blocks( $post_id ) {
            global $wpdb;
            
            $result    = get_post_meta( $post_id, '_bkap_fixed_blocks_data', true );
            $results   = ( isset( $result ) && $result != "" ) ? $result : array();
        
            return $results;
        }
            
        /**
         * This function will return translated string for the Fixed Block names.
         * 
         * @param string $get_translated_text 
         * @param string $message - Message being translated
         * @param string $language - Language to be translated to
         * @return string $translated - Translated Data
         * @since 4.1.0
         **/    

        function bkap_get_translated_texts ( $get_translated_text, $message, $language ) {
                
                if (function_exists('icl_register_string')) {
                    if ( $language == 'en' ) {
                        return $message;
                    } else {
                        global $wpdb;
                        $context = 'woocommerce-booking';
                        $translated = '';
                        $results = $wpdb->get_results($wpdb->prepare("
                            SELECT s.name, s.value, t.value AS translation_value, t.status
                            FROM  {$wpdb->prefix}icl_strings s
                            LEFT JOIN {$wpdb->prefix}icl_string_translations t ON s.id = t.string_id
                            WHERE s.context = %s
                            AND (t.language = %s OR t.language IS NULL)
                            ", $context, $language), ARRAY_A);
                        
                            foreach ($results as $each_entry) {
                                    if ($each_entry['name'] == $get_translated_text) {
                                        if ($each_entry['translation_value']) {
                                            $translated = $each_entry['translation_value'];
                                        } else {
                                            $translated = $each_entry['value'];
                                        }
                                    }
                            }
                            return $translated;
                     }
                  }else {
                      return $message;
                  }
          }
          
          /**
           * This function will ensure that when a new product
           * is created as a duplicate of an existing one, then
           * the Pricing Options (Fixed Blocks and Price Ranges)
           * are also copied alongwith the other settings.
           * 
           * @param integer $new_id - ID of the Product being created
           * @param integer $old_id - ID of the product being copied from.
           * @hook bkap_product_addon_duplicate
           * @since 4.1.0
           */

          function price_range_product_duplicate( $new_id, $old_id ) {
              
              $price_range        =   get_post_meta( $old_id, '_bkap_price_ranges', true );
              $price_range_data   =   get_post_meta( $old_id, '_bkap_price_range_data', true );
              
              $fixed_block        =   get_post_meta( $old_id, '_bkap_fixed_blocks', true );
              $fixed_block_data   =   get_post_meta( $old_id, '_bkap_fixed_blocks_data', true );
              
              update_post_meta( $new_id, "_bkap_price_ranges", $price_range );
              update_post_meta( $new_id, "_bkap_price_range_data", $price_range_data );
              
              update_post_meta( $new_id, "_bkap_fixed_blocks", $fixed_block );
              update_post_meta( $new_id, "_bkap_fixed_blocks_data", $fixed_block_data );
              
          }
          
          /**
           * This function adds hidden fields on the frontend
           * product page if Price Ranges are enabled.
           * 
           * @param $product_id - Product ID
           * 
           * @hook bkap_before_booking_form
           * @since 4.1.0
           */
          
          function bkap_price_range_booking_after_add_to_cart( $product_id ) {
              
              global $post, $wpdb;
          
              //$bakp_price_range = get_post_meta( $post->ID, '_bkap_price_ranges', true );
              $bakp_price_range = get_post_meta( $product_id, '_bkap_price_ranges', true );
          
              if ( isset( $bakp_price_range ) && $bakp_price_range == 'booking_block_price_enable' ) {
                  
                  echo ' <input type="hidden" id="block_option_enabled_price"  name="block_option_enabled_price" value="on"/>';
                  //    echo ' <input type="hidden" id="block_variable_option_price"  name="block_variable_option_price" value=""/>';
                  echo ' <input type="hidden" id="wapbk_variation_value"  name="wapbk_variation_value" value=""/>';
              } else {
                  echo ' <input type="hidden" id="block_option_enabled_price"  name="block_option_enabled_price" value=""/>';
              }
          
          }
            
        }
    }
    $bkap_block_booking = new bkap_block_booking();
 
?>

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