<?php
/*
* This file use to cretae fields of wp event manager at admin side.
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
class WP_Event_Manager_Writepanels {

	/**
	 * The single instance of the class.
	 *
	 * @var self
	 * @since  2.5
	 */
	private static $_instance = null;

	/**
	 * Allows for accessing single instance of class. Class should only be constructed once per call.
	 *
	 * @since  2.5
	 * @static
	 * @return self Main instance.
	 */
	public static function instance() {
		if ( is_null( self::$_instance ) ) {
			self::$_instance = new self();
		}
		return self::$_instance;
	}


	/**
	 * __construct function.
	 *
	 * @access public
	 * @return void
	 */
	public function __construct() {
		add_action( 'add_meta_boxes', array( $this, 'add_meta_boxes' ) );
		add_action( 'save_post', array( $this, 'save_post' ), 1, 2 );
		add_action( 'event_manager_save_event_listing', array( $this, 'save_event_listing_data' ), 20, 2 );

		add_action( 'event_manager_save_organizer_listing', array( $this, 'save_organizer_listing_data' ), 20, 2 );
		add_action( 'event_manager_save_venue_listing', array( $this, 'save_venue_listing_data' ), 20, 2 );

		add_action( 'before_delete_post', array( $this, 'delete_event_with_attachment' ), 10);
	}

	/**
	 * event_listing_fields function.
	 *
	 * @access public
	 * @return void
	 */
	public function event_listing_fields() {	    
		global $post;
		$current_user = wp_get_current_user();
		if( isset($post->ID) ){
			$registration = metadata_exists( 'post', $post->ID, '_registration' ) ? get_post_meta( $post->ID, '_registration', true ) : $current_user->user_email;
			$expiry_date = get_post_meta( $post->ID, '_event_expiry_date', true );
			if($expiry_date){
				$datepicker_date_format = WP_Event_Manager_Date_Time::get_datepicker_format();
				$php_date_format = WP_Event_Manager_Date_Time::get_view_date_format_from_datepicker_date_format($datepicker_date_format );
				$expiry_date = date($php_date_format,strtotime($expiry_date));
			
			}
		}
		else{
			$registration = $current_user->user_email;
			$expiry_date ='';
		}
		
		$GLOBALS['event_manager']->forms->get_form( 'submit-event', array() );
		$form_submit_event_instance = call_user_func( array( 'WP_Event_Manager_Form_Submit_Event', 'instance' ) );
		$fields = $form_submit_event_instance->merge_with_custom_fields('backend');
		
		/** add _ (prefix) for all backend fields. 
		* 	Field editor will only return fields without _(prefix).
		**/
		foreach ($fields as $group_key => $group_fields) {
			foreach ($group_fields as $field_key => $field_value) {
				
				if( strpos($field_key, '_') !== 0 ) {
					$fields['_'.$field_key]  = $field_value;	
				}else{
					$fields[$field_key]  = $field_value;	
				}
			}
			unset($fields[$group_key]);
		}
		$fields = apply_filters( 'event_manager_event_listing_data_fields', $fields );

		if(isset($fields['_event_title']))
			unset($fields['_event_title']);

		if(isset( $fields['_event_description'] )) 
			unset($fields['_event_description']);
		if(isset( $fields['_organizer_logo'] ))
			unset($fields['_organizer_logo']);
		

		if ( $current_user->has_cap( 'manage_event_listings' ) ) {
			$fields['_featured'] = array(
				'label'       => __( 'Featured Listing', 'wp-event-manager' ),
				'type'        => 'checkbox',
				'description' => __( 'Featured listings will be sticky during searches, and can be styled differently.', 'wp-event-manager' ),
				'priority'    => 39
			);

			$fields['_event_expiry_date'] = array(
				'label'       => __( 'Listing Expiry Date', 'wp-event-manager' ),
				'type'        => 'date',
				'placeholder' => __( 'yyyy-mm-dd', 'wp-event-manager' ),
				'priority'    => 40,	
				'value'       => $expiry_date,
			);
		}

		if ( $current_user->has_cap( 'edit_others_event_listings' ) ) {
			$fields['_event_author'] = array(
				'label'    => __( 'Posted by', 'wp-event-manager' ),
				'type'     => 'author',
				'priority' => 41
			);
		}

		uasort( $fields, array( $this, 'sort_by_priority' ) );
		return $fields;
	}

	/**
	 * Sort array by priority value
	 */
	protected function sort_by_priority( $a, $b ) {
	    if ( ! isset( $a['priority'] ) || ! isset( $b['priority'] ) || $a['priority'] === $b['priority'] ) {
	        return 0;
	    }
	    return ( $a['priority'] < $b['priority'] ) ? -1 : 1;
	}

	/**
	 * add_meta_boxes function.
	 *
	 * @access public
	 * @return void
	 */
	public function add_meta_boxes() {
		global $wp_post_types;
		
		add_meta_box( 'event_listing_data', sprintf( __( '%s Data', 'wp-event-manager' ), $wp_post_types['event_listing']->labels->singular_name ), array( $this, 'event_listing_data' ), 'event_listing', 'normal', 'high' );
		
		if ( ! get_option( 'event_manager_enable_event_types' ) ) {
			remove_meta_box( 'event_listing_typediv', 'event_listing', 'side');
		} elseif ( false == event_manager_multiselect_event_type() ) {
			remove_meta_box( 'event_listing_typediv', 'event_listing', 'side');
			$event_listing_type = get_taxonomy( 'event_listing_type' );
			add_meta_box( 'event_listing_type', $event_listing_type->labels->menu_name, array( $this, 'event_listing_metabox' ),'event_listing' ,'side','core');
		}
		
		if(isset($wp_post_types['event_organizer']))
		{
			add_meta_box( 'event_organizer_data', sprintf( __( '%s Data', 'wp-event-manager' ), $wp_post_types['event_organizer']->labels->singular_name ), array( $this, 'event_organizer_data' ), 'event_organizer', 'normal', 'high' );
		}
		
		if(isset($wp_post_types['event_venue']))
		{
			add_meta_box( 'event_venue_data', sprintf( __( '%s Data', 'wp-event-manager' ), $wp_post_types['event_venue']->labels->singular_name ), array( $this, 'event_venue_data' ), 'event_venue', 'normal', 'high' );
		}
	
	}
	
	/**
	 * event_listing_metabox function.
	 *
	 * @param mixed $post
	 * @param 
	 */
	function event_listing_metabox( $post ) {
		//Set up the taxonomy object and get terms
		$taxonomy = 'event_listing_type';
		$tax = get_taxonomy( $taxonomy );//This is the taxonomy object event
	
		//The name of the form
		$name = 'tax_input[' . $taxonomy . '][]';
	
		//Get all the terms for this taxonomy
		$terms = get_terms( $taxonomy, array( 'hide_empty' => 0 ) );
		$postterms = get_the_terms( $post->ID, $taxonomy );
		$current = ( $postterms ? array_pop( $postterms ) : false );
		$current = ( $current ? $current->term_id : 0 );
		//Get current and popular terms
		$popular = get_terms( $taxonomy, array( 'orderby' => 'count', 'order' => 'DESC', 'number' => 10, 'hierarchical' => false ) );
		$postterms = get_the_terms( $post->ID,$taxonomy );
		$current = ($postterms ? array_pop($postterms) : false);
		$current = ($current ? $current->term_id : 0);
		?>
	
			<div id="taxonomy-<?php echo $taxonomy; ?>" class="categorydiv">
	
				<!-- Display tabs-->
				<ul id="<?php echo $taxonomy; ?>-tabs" class="category-tabs">
					<li class="tabs"><a href="#<?php echo $taxonomy; ?>-all" tabindex="3"><?php echo $tax->labels->all_items; ?></a></li>
					<li class="hide-if-no-js"><a href="#<?php echo $taxonomy; ?>-pop" tabindex="3"><?php _e( 'Most Used','wp-event-manager' ); ?></a></li>
				</ul>
	
				<!-- Display taxonomy terms -->
				<div id="<?php echo $taxonomy; ?>-all" class="tabs-panel">
					<ul id="<?php echo $taxonomy; ?>checklist" class="list:<?php echo $taxonomy?> categorychecklist form-no-clear">
						<?php   foreach($terms as $term){
							$id = $taxonomy.'-'.$term->term_id;
							echo "<li id='$id'><label class='selectit'>";
							echo "<input type='radio' id='in-$id' name='{$name}'".checked($current,$term->term_id,false)."value='$term->term_id' />$term->name<br />";
						   echo "</label></li>";
						}?>
				   </ul>
				</div>
	
				<!-- Display popular taxonomy terms -->
				<div id="<?php echo $taxonomy; ?>-pop" class="tabs-panel" style="display: none;">
					<ul id="<?php echo $taxonomy; ?>checklist-pop" class="categorychecklist form-no-clear" >
						<?php   foreach($popular as $term){
							$id = 'popular-'.$taxonomy.'-'.$term->term_id;
							echo "<li id='$id'><label class='selectit'>";
							echo "<input type='radio' id='in-$id'".checked($current,$term->term_id,false)."value='$term->term_id' />$term->name<br />";
							echo "</label></li>";
						}?>
				   </ul>
			   </div>
	
			</div>
			<?php
		}
		
	/**
	 * input_file function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_file( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( empty( $field['placeholder'] ) ) {
			$field['placeholder'] = 'http://';
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
	?>	
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<?php
			if ( ! empty( $field['multiple'] ) ) {
				foreach ( (array) $field['value'] as $value ) {
					?><span class="file_url"><input type="text" name="<?php echo esc_attr( $name ); ?>[]" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $value ); ?>" /><button class="button button-small wp_event_manager_upload_file_button" data-uploader_button_text="<?php _e( 'Use file', 'wp-event-manager' ); ?>"><?php _e( 'Upload', 'wp-event-manager' ); ?></button></span><?php
				}
			} else {
				if(isset($field['value']) && is_array($field['value']) )
					$field['value'] = array_shift($field['value']);
				?><span class="file_url"><input type="text" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $field['value'] ); ?>" /><button class="button button-small wp_event_manager_upload_file_button" data-uploader_button_text="<?php _e( 'Use file', 'wp-event-manager' ); ?>"><?php _e( 'Upload', 'wp-event-manager' ); ?></button></span><?php
			}
			if ( ! empty( $field['multiple'] ) ) {
				?><button class="button button-small wp_event_manager_add_another_file_button" data-field_name="<?php echo esc_attr( $key ); ?>" data-field_placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" data-uploader_button_text="<?php _e( 'Use file', 'wp-event-manager' ); ?>" data-uploader_button="<?php _e( 'Upload', 'wp-event-manager' ); ?>"><?php _e( 'Add file', 'wp-event-manager' ); ?></button><?php
			}
			?>
		</p>
		<?php
	}

	/**
	 * input_text function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_text( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>	
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<input type="text" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $field['value'] ); ?>" />
		</p>
		<?php
	}
	
	/**
	 * input_wp_editor function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 * @since 2.8
	 */
	public static function input_wp_editor( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
			}?>
			<p class="form-field">
				<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			
	
			<?php
			wp_editor( $field['value'], $name, array("media_buttons" => false) );
			?>
			</p>
			<?php
		}
	
	/**
	 * input_date function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_date( $key, $field ) {
	    global $thepostid;
	    if ( ! isset( $field['value'] ) ) {
	        $date = get_post_meta( $thepostid, $key, true );
	        if(!empty($date)){
	        	$datepicker_date_format = WP_Event_Manager_Date_Time::get_datepicker_format();
				$php_date_format = WP_Event_Manager_Date_Time::get_view_date_format_from_datepicker_date_format($datepicker_date_format );
				$date = date($php_date_format,strtotime($date));
				$field['value'] = $date;
	        }
	    }
	    if ( ! empty( $field['name'] ) ) {
	        $name = $field['name'];
	    } else {
	        $name = $key;
	    }
	    ?>
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<input type="text" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php if( isset($field['value']) ) echo esc_attr( $field['value'] ); ?>" data-picker="datepicker" />
		</p>
		<?php
	}

	/**
	 * input_text function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_textarea( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
	?>
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<textarea name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>"><?php echo esc_html( $field['value'] ); ?></textarea>
		</p>
		<?php
	}

	/**
	 * input_select function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_select( $key, $field ) {	   
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>

		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<select name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" class="input-select <?php echo esc_attr( isset( $field['class'] ) ? $field['class'] : $key ); ?>">
				<?php foreach ( $field['options'] as $key => $value ) : ?>
				<option value="<?php echo esc_attr( $key ); ?>" <?php if ( isset( $field['value'] ) ) selected( $field['value'], $key ); ?>><?php echo esc_html( $value ); ?></option>
				<?php endforeach; ?>
			</select>
		</p>
		<?php
	}

	/**
	 * input_select function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_multiselect( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<select multiple="multiple" name="<?php echo esc_attr( $name ); ?>[]" id="<?php echo esc_attr( $key ); ?>" class="input-select event-manager-select-chosen <?php echo esc_attr( isset( $field['class'] ) ? $field['class'] : $key ); ?>">
				<?php foreach ( $field['options'] as $key => $value ) : ?>
				<option value="<?php echo esc_attr( $key ); ?>" <?php if ( ! empty( $field['value'] ) && is_array( $field['value'] ) ) selected( in_array( $key, $field['value'] ), true ); ?>><?php echo esc_html( $value ); ?></option>
				<?php endforeach; ?>
			</select>
		</p>
		<?php
	}

	/**
	 * input_checkbox function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_checkbox( $key, $field ) {
		global $thepostid;
		if ( empty( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>
		<p class="form-field form-field-checkbox">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?></label>
			<input type="checkbox" class="checkbox" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" value="1" <?php checked( $field['value'], 1 ); ?> />
			<?php if ( ! empty( $field['description'] ) ) : ?><span class="description"><?php echo $field['description']; ?></span><?php endif; ?>
		</p>
		<?php
	}

	/**
	 * input_time function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_time( $key, $field ) {
		global $thepostid;
		if ( ! isset( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>
		<p class="form-field">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
			<input type="text" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $field['value'] ); ?>" data-picker="timepicker" />
		</p>
			<?php
		}
		
		/**
		 * input_timezone function.
		 *
		 * @param mixed $key
		 * @param mixed $field
		 */
		public static function input_timezone( $key, $field ) {
			global $thepostid;
			if ( ! isset( $field['value'] ) ) {
				$field['value'] = get_post_meta( $thepostid, $key, true );
			}
			if ( ! empty( $field['name'] ) ) {
				$name = $field['name'];
			} else {
				$name = $key;
			}
			?>
				<p class="form-field">
					<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
					 <select name="<?php echo esc_attr( isset( $field['name'] ) ? $field['name'] : $key ); ?>" id="<?php echo isset( $field['id'] ) ? esc_attr( $field['id'] ) :  esc_attr( $key ); ?>" class="input-select <?php echo esc_attr( isset( $field['class'] ) ? $field['class'] : $key ); ?>">
		 			<?php 
		 			$value = isset($field['value']) ? $field['value'] : $field['default'];	
		 			echo WP_Event_Manager_Date_Time::wp_event_manager_timezone_choice($value);
		 			?>
		 			</select>
				</p>
		<?php
		}
		
		
		/**
		 * input_number function.
		 *
		 * @param mixed $key
		 * @param mixed $field
		 */
		public static function input_number( $key, $field ) {
			global $thepostid;
			if ( ! isset( $field['value'] ) ) {
				$field['value'] = get_post_meta( $thepostid, $key, true );
			}
			if ( ! empty( $field['name'] ) ) {
				$name = $field['name'];
			} else {
				$name = $key;
			}
			?>
				<p class="form-field">
					<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
					<input type="number" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $field['value'] ); ?>" />
				</p>
				<?php
			}
			/**
			 * input_button function.
			 *
			 * @param mixed $key
			 * @param mixed $field
			 */
			public static function input_button( $key, $field ) {
				global $thepostid;
				if ( ! isset( $field['value'] ) ) {
					$field['value'] = $field['placeholder'];
				}
			
				if ( ! empty( $field['name'] ) ) {
					$name = $field['name'];
				} else {
					$name = $key;
				}
				?>
						<p class="form-field">
							<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>: <?php if ( ! empty( $field['description'] ) ) : ?><span class="tips" data-tip="<?php echo esc_attr( $field['description'] ); ?>">[?]</span><?php endif; ?></label>
							<input type="button" class="button button-small" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" placeholder="<?php echo esc_attr( $field['placeholder'] ); ?>" value="<?php echo esc_attr( $field['value'] ); ?>" />
						</p>
						<?php
		}	
		
	/**
	 * Box to choose who posted the event
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */	 
	public static function input_author( $key, $field ) {
		global $thepostid, $post;
		if ( ! $post || $thepostid !== $post->ID ) {
			$the_post  = get_post( $thepostid );
			$author_id = $the_post->post_author;
		} else {
			$author_id = $post->post_author;
		}
		$posted_by      = get_user_by( 'id', $author_id );
		$field['value'] = ! isset( $field['value'] ) ? get_post_meta( $thepostid, $key, true ) : $field['value'];
		$name           = ! empty( $field['name'] ) ? $field['name'] : $key;
		?>
		<p class="form-field form-field-author">
			<label for="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $field['label'] ) ; ?>:</label>
			<span class="current-author">
				<?php
					if ( $posted_by ) {
						echo '<a href="' . admin_url( 'user-edit.php?user_id=' . absint( $author_id ) ) . '">#' . absint( $author_id ) . ' &ndash; ' . $posted_by->user_login . '</a>';
					} else {
						 _e( 'Guest User', 'wp-event-manager' );
					}
				?> <a href="#" class="change-author button button-small"><?php _e( 'Change', 'wp-event-manager' ); ?></a>
			</span>
			<span class="hidden change-author">
				<input type="number" name="<?php echo esc_attr( $name ); ?>" id="<?php echo esc_attr( $key ); ?>" step="1" value="<?php echo esc_attr( $author_id ); ?>" style="width: 4em;" />
				<span class="description"><?php _e( 'Enter the ID of the user, or leave blank if submitted by a guest.', 'wp-event-manager' ) ?></span>
			</span>
		</p>
		<?php
	}

	/**
	 * input_radio function.
	 *
	 * @param mixed $key
	 * @param mixed $field
	 */
	public static function input_radio( $key, $field ) {
		global $thepostid;
		if ( empty( $field['value'] ) ) {
			$field['value'] = get_post_meta( $thepostid, $key, true );
		}
		if ( ! empty( $field['name'] ) ) {
			$name = $field['name'];
		} else {
			$name = $key;
		}
		?>
		<p class="form-field form-field-checkbox">
			<label><?php echo esc_html( $field['label'] ) ; ?></label>
			<?php foreach ( $field['options'] as $option_key => $value ) : ?>
				<label><input type="radio" class="radio" name="<?php echo esc_attr( isset( $field['name'] ) ? $field['name'] : $key ); ?>" value="<?php echo esc_attr( $option_key ); ?>" <?php checked( $field['value'], $option_key ); ?> /> <?php echo esc_html( $value ); ?></label>
			<?php endforeach; ?>
			<?php if ( ! empty( $field['description'] ) ) : ?><span class="description"><?php echo $field['description']; ?></span><?php endif; ?>
		</p>
		<?php
	}

	/**
	 * event_listing_data function.
	 *
	 * @access public
	 * @param mixed $post
	 * @return void
	 */
	public function event_listing_data( $post ) {
		global $post, $thepostid;
		$thepostid = $post->ID;
		echo '<div class="wp_event_manager_meta_data">';
		wp_nonce_field( 'save_meta_data', 'event_manager_nonce' );
		do_action( 'event_manager_event_listing_data_start', $thepostid );
		foreach ( $this->event_listing_fields() as $key => $field ) {
			$type = ! empty( $field['type'] ) ? $field['type'] : 'text';
			if($type == 'wp-editor') $type = 'textarea';
			
			if ( has_action( 'event_manager_input_' . $type ) ) {
				do_action( 'event_manager_input_' . $type, $key, $field );
			} elseif ( method_exists( $this, 'input_' . $type ) ) {
				call_user_func( array( $this, 'input_' . $type ), $key, $field );
			}
		}
		do_action( 'event_manager_event_listing_data_end', $thepostid );
		echo '</div>';
	}
	
	/**
	 * save_post function.
	 *
	 * @access public
	 * @param mixed $post_id
	 * @param mixed $post
	 * @return void
	 */
	public function save_post( $post_id, $post ) {
		if ( empty( $post_id ) || empty( $post ) || empty( $_POST ) ) return;
		if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return;
		if ( is_int( wp_is_post_revision( $post ) ) ) return;
		if ( is_int( wp_is_post_autosave( $post ) ) ) return;
		if ( empty($_POST['event_manager_nonce']) || ! wp_verify_nonce( $_POST['event_manager_nonce'], 'save_meta_data' ) ) return;
		if ( ! current_user_can( 'edit_post', $post_id ) ) return;

		if ( $post->post_type == 'event_listing'  )
		do_action( 'event_manager_save_event_listing', $post_id, $post );

		if ( $post->post_type == 'event_organizer'  )
		do_action( 'event_manager_save_organizer_listing', $post_id, $post );

		if ( $post->post_type == 'event_venue'  )
		do_action( 'event_manager_save_venue_listing', $post_id, $post );

	}

	/**
	 * save_event_listing_data function.
	 *
	 * @access public
	 * @param mixed $post_id
	 * @param mixed $post
	 * @return void
	 */
	public function save_event_listing_data( $post_id, $post ) {
		global $wpdb;
		// These need to exist
		add_post_meta( $post_id, '_cancelled', 0, true );
		add_post_meta( $post_id, '_featured', 0, true );
		
		//get date and time setting defined in admin panel Event listing -> Settings -> Date & Time formatting
		$datepicker_date_format 	= WP_Event_Manager_Date_Time::get_datepicker_format();
		
		//covert datepicker format  into php date() function date format
		$php_date_format 		= WP_Event_Manager_Date_Time::get_view_date_format_from_datepicker_date_format( $datepicker_date_format );
		
		// Save fields
		foreach ( $this->event_listing_fields() as $key => $field ) {
		
		    
			//Event Expiry date
			if ( '_event_expiry_date' === $key ) {            
				if ( ! empty( $_POST[ $key ] ) ) {
				    $date_dbformatted = WP_Event_Manager_Date_Time::date_parse_from_format($php_date_format   , $_POST[ $key ] );
				    $date_dbformatted = !empty($date_dbformatted) ? $date_dbformatted : $date;
				    
				    update_post_meta( $post_id, $key, $date_dbformatted );
				} else {
				    update_post_meta( $post_id, $key, '' );
				}
			}
			// Locations
			elseif ( '_event_location' === $key ) {
				if ( update_post_meta( $post_id, $key, sanitize_text_field( $_POST[ $key ] ) ) ) {
					// Location data will be updated by hooked in methods
				} elseif ( apply_filters( 'event_manager_geolocation_enabled', true ) && ! WP_Event_Manager_Geocode::has_location_data( $post_id ) ) {
					WP_Event_Manager_Geocode::generate_location_data( $post_id, sanitize_text_field( $_POST[ $key ] ) );
				}
			}
			elseif ( '_event_author' === $key ) {
				$wpdb->update( $wpdb->posts, array( 'post_author' => $_POST[ $key ] > 0 ? absint( $_POST[ $key ] ) : 0 ), array( 'ID' => $post_id ) );
			}
			// Everything else		
			else {
				$type = ! empty( $field['type'] ) ? $field['type'] : '';
				switch ( $type ) {
					case 'textarea' :
						update_post_meta( $post_id, $key,wp_kses_post( stripslashes( $_POST[ $key ] ) ) );
					break;
					case 'checkbox' :
						if ( isset( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, 1 );
						} else {
							update_post_meta( $post_id, $key, 0 );
						}
					break;
					case 'date' :
						if ( isset( $_POST[ $key ] ) ) {
							$date = $_POST[ $key ];
							
							//Convert date and time value into DB formatted format and save eg. 1970-01-01
							$date_dbformatted = WP_Event_Manager_Date_Time::date_parse_from_format($php_date_format   , $date );
							$date_dbformatted = !empty($date_dbformatted) ? $date_dbformatted : $date;
							update_post_meta( $post_id, $key, $date_dbformatted );

						}
					break;
					default :
						if ( ! isset( $_POST[ $key ] ) ) {
							continue 2;
						} elseif ( is_array( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, array_filter( array_map( 'sanitize_text_field', $_POST[ $key ] ) ) );
						} else {
							update_post_meta( $post_id, $key, sanitize_text_field( $_POST[ $key ] ) );
						}
					break;
				}
			}
		}
		/* Set Post Status To Expired If Already Expired */
		
		$event_timezone = get_post_meta($post_id,'_event_timezone',true);
		//check if timezone settings is enabled as each event then set current time stamp according to the timezone
		// for eg. if each event selected then Berlin timezone will be different then current site timezone.
		if( WP_Event_Manager_Date_Time::get_event_manager_timezone_setting() == 'each_event'  )
			$current_timestamp = WP_Event_Manager_Date_Time::current_timestamp_from_event_timezone( $event_timezone );
		else
			$current_timestamp = current_time( 'timestamp' ); // If site wise timezone selected
		
		$expiry_date = get_post_meta( $post_id, '_event_expiry_date', true );
		$today_date  = date( 'Y-m-d', $current_timestamp );
		$post_status = $expiry_date && $current_timestamp > strtotime($expiry_date) ? 'expired' : false;
		if( $post_status ) {
			remove_action( 'event_manager_save_event_listing', array( $this, 'save_event_listing_data' ), 20, 2 );
			$event_data = array(
					'ID'          => $post_id,
					'post_status' => $post_status,
			);
			wp_update_post( $event_data);
			add_action( 'event_manager_save_event_listing', array( $this, 'save_event_listing_data' ), 20, 2 );
		}
	}

	/**
	 * event_listing_fields function.
	 *
	 * @access public
	 * @return void
	 */
	public function organizer_listing_fields() {	    
		global $post;
		$current_user = wp_get_current_user();
		
		
		$GLOBALS['event_manager']->forms->get_form( 'submit-organizer', array() );
		$form_submit_organizer_instance = call_user_func( array( 'WP_Event_Manager_Form_Submit_Organizer', 'instance' ) );
		$fields = $form_submit_organizer_instance->merge_with_custom_fields('backend');
		
		/** add _ (prefix) for all backend fields. 
		* 	Field editor will only return fields without _(prefix).
		**/
		foreach ($fields as $group_key => $group_fields) {
			foreach ($group_fields as $field_key => $field_value) {
				
				if( strpos($field_key, '_') !== 0 ) {
					$fields['_'.$field_key]  = $field_value;	
				}else{
					$fields[$field_key]  = $field_value;	
				}
			}
			unset($fields[$group_key]);
		}
		$fields = apply_filters( 'event_manager_organizer_listing_data_fields', $fields );

		if(isset($fields['_organizer_name']))
			unset($fields['_organizer_name']);

		if(isset( $fields['_organizer_description'] )) 
			unset($fields['_organizer_description']);

		if(isset( $fields['_organizer_logo'] ))
			unset($fields['_organizer_logo']);
		
		if ( $current_user->has_cap( 'edit_others_event_listings' ) ) {
			$fields['_organizer_author'] = array(
				'label'    => __( 'Posted by', 'wp-event-manager' ),
				'type'     => 'author',
				'priority' => 41
			);
		}

		uasort( $fields, array( $this, 'sort_by_priority' ) );
		return $fields;
	}


	/**
	 * event_organizer_data function.
	 *
	 * @access public
	 * @param mixed $post
	 * @return void
	 */
	public function event_organizer_data( $post ) {
		global $post, $thepostid;
		$thepostid = $post->ID;
		echo '<div class="wp_event_manager_meta_data">';
		wp_nonce_field( 'save_meta_data', 'event_manager_nonce' );
		do_action( 'event_manager_event_organizer_data_start', $thepostid );
		foreach ( $this->organizer_listing_fields() as $key => $field ) {
			$type = ! empty( $field['type'] ) ? $field['type'] : 'text';
			if($type == 'wp-editor') $type = 'textarea';
			
			if ( has_action( 'event_manager_input_' . $type ) ) {
				do_action( 'event_manager_input_' . $type, $key, $field );
			} elseif ( method_exists( $this, 'input_' . $type ) ) {
				call_user_func( array( $this, 'input_' . $type ), $key, $field );
			}
		}
		do_action( 'event_manager_event_organizer_data_end', $thepostid );
		echo '</div>';
	}

	/**
	 * save_organizer_listing_data function.
	 *
	 * @access public
	 * @param mixed $post_id
	 * @param mixed $post
	 * @return void
	 */
	public function save_organizer_listing_data( $post_id, $post ) {
		global $wpdb;
	
		//get date and time setting defined in admin panel Event listing -> Settings -> Date & Time formatting
		$datepicker_date_format 	= WP_Event_Manager_Date_Time::get_datepicker_format();
		
		//covert datepicker format  into php date() function date format
		$php_date_format 		= WP_Event_Manager_Date_Time::get_view_date_format_from_datepicker_date_format( $datepicker_date_format );

		update_post_meta( $post_id, '_organizer_name', sanitize_text_field( $_POST[ 'post_title' ] ) );
		update_post_meta( $post_id, '_organizer_description', sanitize_text_field( $_POST[ 'content' ] ) );
		
		// Save fields
		foreach ( $this->organizer_listing_fields() as $key => $field ) {
		
		    
		if ( '_organizer_author' === $key ) {
				$wpdb->update( $wpdb->posts, array( 'post_author' => $_POST[ $key ] > 0 ? absint( $_POST[ $key ] ) : 0 ), array( 'ID' => $post_id ) );
			}
			// Everything else		
			else {
				$type = ! empty( $field['type'] ) ? $field['type'] : '';
				switch ( $type ) {
					case 'textarea' :
						update_post_meta( $post_id, $key,wp_kses_post( stripslashes( $_POST[ $key ] ) ) );
					break;
					case 'checkbox' :
						if ( isset( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, 1 );
						} else {
							update_post_meta( $post_id, $key, 0 );
						}
					break;
					case 'date' :
						if ( isset( $_POST[ $key ] ) ) {
							$date = $_POST[ $key ];
							
							//Convert date and time value into DB formatted format and save eg. 1970-01-01
							$date_dbformatted = WP_Event_Manager_Date_Time::date_parse_from_format($php_date_format   , $date );
							$date_dbformatted = !empty($date_dbformatted) ? $date_dbformatted : $date;
							update_post_meta( $post_id, $key, $date_dbformatted );

						}
					break;
					default :
						if ( ! isset( $_POST[ $key ] ) ) {
							continue 2;
						} elseif ( is_array( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, array_filter( array_map( 'sanitize_text_field', $_POST[ $key ] ) ) );
						} else {
							update_post_meta( $post_id, $key, sanitize_text_field( $_POST[ $key ] ) );
						}
					break;
				}
			}
		}
	}


	/**
	 * venue_listing_fields function.
	 *
	 * @access public
	 * @return void
	 */
	public function venue_listing_fields() {	    
		global $post;
		$current_user = wp_get_current_user();
		
		
		$GLOBALS['event_manager']->forms->get_form( 'submit-venue', array() );
		$form_submit_venue_instance = call_user_func( array( 'WP_Event_Manager_Form_Submit_Venue', 'instance' ) );
		$fields = $form_submit_venue_instance->merge_with_custom_fields('backend');
		
		/** add _ (prefix) for all backend fields. 
		* 	Field editor will only return fields without _(prefix).
		**/
		foreach ($fields as $group_key => $group_fields) {
			foreach ($group_fields as $field_key => $field_value) {
				
				if( strpos($field_key, '_') !== 0 ) {
					$fields['_'.$field_key]  = $field_value;	
				}else{
					$fields[$field_key]  = $field_value;	
				}
			}
			unset($fields[$group_key]);
		}
		$fields = apply_filters( 'event_manager_venue_listing_data_fields', $fields );

		if(isset($fields['_venue_name']))
			unset($fields['_venue_name']);

		if(isset( $fields['_venue_description'] )) 
			unset($fields['_venue_description']);
		
		if(isset( $fields['_venue_logo'] ))
			unset($fields['_venue_logo']);
		
		if ( $current_user->has_cap( 'edit_others_event_listings' ) ) {
			$fields['_venue_author'] = array(
				'label'    => __( 'Posted by', 'wp-event-manager' ),
				'type'     => 'author',
				'priority' => 41
			);
		}

		uasort( $fields, array( $this, 'sort_by_priority' ) );
		return $fields;
	}

	/**
	 * event_venue_data function.
	 *
	 * @access public
	 * @param mixed $post
	 * @return void
	 */
	public function event_venue_data( $post ) {
		global $post, $thepostid;
		$thepostid = $post->ID;
		echo '<div class="wp_event_manager_meta_data">';
		wp_nonce_field( 'save_meta_data', 'event_manager_nonce' );
		do_action( 'event_manager_event_venue_data_start', $thepostid );
		foreach ( $this->venue_listing_fields() as $key => $field ) {
			$type = ! empty( $field['type'] ) ? $field['type'] : 'text';
			if($type == 'wp-editor') $type = 'textarea';
			
			if ( has_action( 'event_manager_input_' . $type ) ) {
				do_action( 'event_manager_input_' . $type, $key, $field );
			} elseif ( method_exists( $this, 'input_' . $type ) ) {
				call_user_func( array( $this, 'input_' . $type ), $key, $field );
			}
		}
		do_action( 'event_manager_event_venue_data_end', $thepostid );
		echo '</div>';
	}	

	/**
	 * save_venue_listing_data function.
	 *
	 * @access public
	 * @param mixed $post_id
	 * @param mixed $post
	 * @return void
	 */
	public function save_venue_listing_data( $post_id, $post ) {
		global $wpdb;
	
		//get date and time setting defined in admin panel Event listing -> Settings -> Date & Time formatting
		$datepicker_date_format 	= WP_Event_Manager_Date_Time::get_datepicker_format();
		
		//covert datepicker format  into php date() function date format
		$php_date_format 		= WP_Event_Manager_Date_Time::get_view_date_format_from_datepicker_date_format( $datepicker_date_format );

		update_post_meta( $post_id, '_venue_name', sanitize_text_field( $_POST[ 'post_title' ] ) );
		update_post_meta( $post_id, '_venue_description', sanitize_text_field( $_POST[ 'content' ] ) );
		
		// Save fields
		foreach ( $this->venue_listing_fields() as $key => $field ) 
		{
			if ( '_venue_author' === $key ) 
			{
				$wpdb->update( $wpdb->posts, array( 'post_author' => $_POST[ $key ] > 0 ? absint( $_POST[ $key ] ) : 0 ), array( 'ID' => $post_id ) );
			}
			// Everything else		
			else 
			{
				$type = ! empty( $field['type'] ) ? $field['type'] : '';
				switch ( $type ) {
					case 'textarea' :
						update_post_meta( $post_id, $key,wp_kses_post( stripslashes( $_POST[ $key ] ) ) );
					break;
					case 'checkbox' :
						if ( isset( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, 1 );
						} else {
							update_post_meta( $post_id, $key, 0 );
						}
					break;
					case 'date' :
						if ( isset( $_POST[ $key ] ) ) {
							$date = $_POST[ $key ];
							
							//Convert date and time value into DB formatted format and save eg. 1970-01-01
							$date_dbformatted = WP_Event_Manager_Date_Time::date_parse_from_format($php_date_format   , $date );
							$date_dbformatted = !empty($date_dbformatted) ? $date_dbformatted : $date;
							update_post_meta( $post_id, $key, $date_dbformatted );

						}
					break;
					default :
						if ( ! isset( $_POST[ $key ] ) ) {
							continue 2;
						} elseif ( is_array( $_POST[ $key ] ) ) {
							update_post_meta( $post_id, $key, array_filter( array_map( 'sanitize_text_field', $_POST[ $key ] ) ) );
						} else {
							update_post_meta( $post_id, $key, sanitize_text_field( $_POST[ $key ] ) );
						}
					break;
				}
			}
		}
	}


		/**
	 * wpem_delete_event_with_attachment function.
	 *
	 * @param $post_id
	 * @access public
	 * @return void
	 */
	public function delete_event_with_attachment($post_id) {
		if( !in_array(get_post_type($post_id), ['event_listing', 'event_organizer']) )
			return;

		$event_banner = get_event_banner($post_id);

		if(!empty($event_banner))
		{
			$wp_upload_dir = wp_get_upload_dir();

			$baseurl = $wp_upload_dir['baseurl'] . '/';

			if(is_array($event_banner))
			{
				foreach ($event_banner as $banner) 
				{
					$wp_attached_file = str_replace($baseurl, '', $banner);

					$args = array(
				        'meta_key'         	=> '_wp_attached_file',
				        'meta_value'       	=> $wp_attached_file,
				        'post_type'        	=> 'attachment',
				        'posts_per_page'	=> 1,
				    );

					$attachments = get_posts($args);

					if(!empty($attachments))
					{
						foreach ($attachments as $attachment) 
						{
							wp_delete_attachment($attachment->ID, true);
						}
					}
				}
			}
			else
			{
				$wp_attached_file = str_replace($baseurl, '', $event_banner);

				$args = array(
			        'meta_key'         	=> '_wp_attached_file',
			        'meta_value'       	=> $wp_attached_file,
			        'post_type'        	=> 'attachment',
			        'posts_per_page'	=> 1,
			    );

				$attachments = get_posts($args);

				if(!empty($attachments))
				{
					foreach ($attachments as $attachment) 
					{
						wp_delete_attachment($attachment->ID, true);
					}
				}
			}
		}

		$thumbnail_id = get_post_thumbnail_id($post_id);
		if(!empty($thumbnail_id))
		{
			wp_delete_attachment($thumbnail_id, true);
		}

	}

}
WP_Event_Manager_Writepanels::instance();