<?php
//TODO add a shortcode to link for a specific event, e.g. [event id=x]text[/event]

/**
 * Returns the html of an events calendar with events that match given query attributes. Accepts any event query attribute.
 * @param array $atts
 * @return string
 */
function em_get_calendar_shortcode($atts) { 
	return EM_Calendar::output( (array) $atts );
}
add_shortcode('events_calendar', 'em_get_calendar_shortcode');

function em_get_gcal_shortcode($atts){
	$img_url = is_ssl() ? 'https://www.google.com/calendar/images/ext/gc_button6.gif':'http://www.google.com/calendar/images/ext/gc_button6.gif';
	$atts = shortcode_atts(array('img'=>$img_url, 'button'=>6), $atts);
	if( $img_url == $atts['img'] && $atts['button'] != 6 ){
		$img_url = str_replace('gc_button6.gif', 'gc_button'.$atts['button'].'.gif', $img_url);
	}
	$url = '<a href="http://www.google.com/calendar/render?cid='.urlencode(trailingslashit(get_home_url()).'events.ics').'" target="_blank"><img src="'.$img_url.'" alt="0" border="0"></a>';
	return $url;
}
add_shortcode('events_gcal', 'em_get_gcal_shortcode');

/**
 * Generates a map of locations that match given query attributes. Accepts any location query attributes. 
 * @param array $args
 * @return string
 */
function em_get_locations_map_shortcode($args){
	$args['em_ajax'] = true;
	$args['query'] = 'GlobalMapData';
    //get dimensions with px or % added in
	$width = (!empty($args['width'])) ? $args['width']:get_option('dbem_map_default_width','400px');
	$width = preg_match('/(px)|%/', $width) ? $width:$width.'px';
	$height = (!empty($args['height'])) ? $args['height']:get_option('dbem_map_default_height','300px');
	$height = preg_match('/(px)|%/', $height) ? $height:$height.'px';
	$args['width'] = $width;
	$args['height'] = $height;
	//assign random number for element id reference
	$args['random_id'] = substr(md5(rand().rand()),0,5);
	ob_start();
	em_locate_template('templates/map-global.php',true, array('args'=>$args)); 
	return ob_get_clean();
}
add_shortcode('locations_map', 'em_get_locations_map_shortcode');
add_shortcode('locations-map', 'em_get_locations_map_shortcode'); //deprecate this... confusing for WordPress 

/**
 * Shows a list of events according to given specifications. Accepts any event query attribute.
 * @param array $args
 * @return string
 */
function em_get_events_list_shortcode($args, $format='') {
	$args = (array) $args;
	$args['ajax'] = isset($args['ajax']) ? $args['ajax']:(!defined('EM_AJAX') || EM_AJAX );
	$args['format'] = ($format != '' || empty($args['format'])) ? $format : $args['format']; 
	$args['format'] = html_entity_decode($args['format']); //shortcode doesn't accept html
	$args['limit'] = isset($args['limit']) ? $args['limit'] : get_option('dbem_events_default_limit');
	if( empty($args['format']) && empty($args['format_header']) && empty($args['format_footer']) ){
		ob_start();
		if( !empty($args['ajax']) ){ echo '<div class="em-search-ajax">'; } //open AJAX wrapper
		em_locate_template('templates/events-list.php', true, array('args'=>$args));
		if( !empty($args['ajax']) ) echo "</div>"; //close AJAX wrapper
		$return = ob_get_clean();
	}else{
		$args['ajax'] = false;
		$pno = ( !empty($args['pagination']) && !empty($_GET['pno']) && is_numeric($_GET['pno']) )? $_GET['pno'] : 1;
		$args['page'] = ( !empty($args['pagination']) && !empty($args['page']) && is_numeric($args['page']) )? $args['page'] : $pno;
		$return = EM_Events::output( $args );
	}
	return $return;
}
add_shortcode ( 'events_list', 'em_get_events_list_shortcode' );

/**
 * Creates a grouped list of events by year, month, week or day
 * @since 4.213
 * @param array $args
 * @param string $format
 * @return string
 */
function em_get_events_list_grouped_shortcode($args = array(), $format = ''){
	$args = (array) $args;
	$args['ajax'] = isset($args['ajax']) ? $args['ajax']:(!defined('EM_AJAX') || EM_AJAX );
	$args['format'] = ($format != '' || empty($args['format'])) ? $format : $args['format']; 
	$args['format'] = html_entity_decode($args['format']); //shortcode doesn't accept html
	$args['limit'] = isset($args['limit']) ? $args['limit'] : get_option('dbem_events_default_limit');
	if( empty($args['format']) && empty($args['format_header']) && empty($args['format_footer']) ){
		ob_start();
		if( !empty($args['ajax']) ){ echo '<div class="em-search-ajax">'; } //open AJAX wrapper
		em_locate_template('templates/events-list-grouped.php', true, array('args'=>$args));
		if( !empty($args['ajax']) ) echo "</div>"; //close AJAX wrapper
		$return = ob_get_clean();
	}else{
		$args['ajax'] = false;
		$pno = ( !empty($args['pagination']) && !empty($_GET['pno']) && is_numeric($_GET['pno']) )? $_GET['pno'] : 1;
		$args['page'] = ( !empty($args['pagination']) && !empty($args['page']) && is_numeric($args['page']) )? $args['page'] : $pno;
		$return = EM_Events::output_grouped( $args );
	}
	return $return;
}
add_shortcode ( 'events_list_grouped', 'em_get_events_list_grouped_shortcode' );

/**
 * Shows a list of events according to given specifications. Accepts any event query attribute.
 * @param array $atts
 * @return string
 */
function em_get_event_shortcode($atts, $format='') {
    global $EM_Event, $post;
	$return = '';
    $the_event = is_object($EM_Event) ? clone($EM_Event):null; //save global temporarily
	$atts = (array) $atts;
	$atts['format'] = ($format != '' || empty($atts['format'])) ? $format : $atts['format']; 
	$atts['format'] = html_entity_decode($atts['format']); //shorcode doesn't accept html
	if( !empty($atts['event']) && is_numeric($atts['event']) ){
		$EM_Event = em_get_event($atts['event']);
		$return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
	}elseif( !empty($atts['post_id']) && is_numeric($atts['post_id']) ){
		$EM_Event = em_get_event($atts['post_id'], 'post_id');
		$return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
	}
	//no specific event or post id supplied, check globals
	if( !empty($EM_Event) ){
	    $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
	}elseif( $post->post_type == EM_POST_TYPE_EVENT ){
	    $EM_Event = em_get_event($post->ID, 'post_id');
	    $return = ( !empty($atts['format']) ) ? $EM_Event->output($atts['format']) : $EM_Event->output_single();
	}
    $EM_Event = is_object($the_event) ? $the_event:$EM_Event; //reset global
    return $return;
}
add_shortcode ( 'event', 'em_get_event_shortcode' );

/**
 * Returns list of locations according to given specifications. Accepts any location query attribute.
 */
function em_get_locations_list_shortcode( $args, $format='' ) {
	$args = (array) $args;
	$args['ajax'] = isset($args['ajax']) ? $args['ajax']:(!defined('EM_AJAX') || EM_AJAX );
	$args['format'] = ($format != '' || empty($args['format'])) ? $format : $args['format']; 
	$args['format'] = html_entity_decode($args['format']); //shorcode doesn't accept html
	$args['limit'] = isset($args['limit']) ? $args['limit'] : get_option('dbem_locations_default_limit');
	if( empty($args['format']) && empty($args['format_header']) && empty($args['format_footer']) ){
		ob_start();
		if( !empty($args['ajax']) ){ echo '<div class="em-search-ajax">'; } //open AJAX wrapper
		em_locate_template('templates/locations-list.php', true, array('args'=>$args));
		if( !empty($args['ajax']) ) echo "</div>"; //close AJAX wrapper
		$return = ob_get_clean();
	}else{
		$args['ajax'] = false;
		$args['page'] = ( !empty($args['pagination']) && !empty($args['page']) && is_numeric($args['page']) )? $args['page'] : 1;
		$args['page'] = ( !empty($args['pagination']) && !empty($_GET['pno']) && is_numeric($_GET['pno']) )? $_GET['pno'] : $args['page'];
		$return = EM_Locations::output( $args );
	}
	return $return;
}
add_shortcode('locations_list', 'em_get_locations_list_shortcode');

/**
 * Shows a single location according to given specifications. Accepts any event query attribute.
 * @param array $atts
 * @return string
 */
function em_get_location_shortcode($atts, $format='') {
	$atts = (array) $atts;
	$atts['format'] = ($format != '' || empty($atts['format'])) ? $format : $atts['format']; 
	$atts['format'] = html_entity_decode($atts['format']); //shorcode doesn't accept html
	if( !empty($atts['location']) && is_numeric($atts['location']) ){
		$EM_Location = em_get_location($atts['location']);
		return ( !empty($atts['format']) ) ? $EM_Location->output($atts['format']) : $EM_Location->output_single();
	}elseif( !empty($atts['post_id']) && is_numeric($atts['post_id']) ){
		$EM_Location = em_get_location($atts['post_id'],'post_id');
		return ( !empty($atts['format']) ) ? $EM_Location->output($atts['format']) : $EM_Location->output_single();
	}
	//no specific location or post id supplied, check globals
	global $EM_Location, $post;
	if( !empty($EM_Location) ){
		return ( !empty($atts['format']) ) ? $EM_Location->output($atts['format']) : $EM_Location->output_single();
	}elseif( $post->post_type == EM_POST_TYPE_LOCATION ){
		$EM_Location = em_get_location($post->ID,'post_id');
		return ( !empty($atts['format']) ) ? $EM_Location->output($atts['format']) : $EM_Location->output_single();
	}
}
add_shortcode ( 'location', 'em_get_location_shortcode' );

function em_get_categories_shortcode($args, $format=''){
	$args = (array) $args;
	$args['ajax'] = isset($args['ajax']) ? $args['ajax']:(!defined('EM_AJAX') || EM_AJAX );
	$args['format'] = ($format != '' || empty($args['format'])) ? $format : $args['format']; 
	$args['format'] = html_entity_decode($args['format']); //shorcode doesn't accept html
	$args['orderby'] = !empty($args['orderby']) ? $args['orderby'] : get_option('dbem_categories_default_orderby');
	$args['order'] = !empty($args['order']) ? $args['order'] : get_option('dbem_categories_default_order');
	$args['pagination'] = isset($args['pagination']) ? $args['pagination'] : !isset($args['limit']);
	$args['limit'] = isset($args['limit']) ? $args['limit'] : get_option('dbem_categories_default_limit');
	if( empty($args['format']) && empty($args['format_header']) && empty($args['format_footer']) ){
		ob_start();
		if( !empty($args['ajax']) ){ echo '<div class="em-search-ajax">'; } //open AJAX wrapper
		em_locate_template('templates/categories-list.php', true, array('args'=>$args));
		if( !empty($args['ajax']) ) echo "</div>"; //close AJAX wrapper
		$return = ob_get_clean();
	}else{
		$args['ajax'] = false;
		$args['page'] = ( !empty($args['pagination']) && !empty($args['page']) && is_numeric($args['page']) )? $args['page'] : 1;
		$args['page'] = ( !empty($args['pagination']) && !empty($_GET['pno']) && is_numeric($_GET['pno']) )? $_GET['pno'] : $args['page'];
		$return = EM_Categories::output($args);
	}
	return $return;
}
add_shortcode ( 'categories_list', 'em_get_categories_shortcode' );

/**
 * Shows a single location according to given specifications. Accepts any event query attribute.
 * @param array $atts
 * @return string
 */
function em_get_event_category_shortcode($atts, $format='') {
	$atts = (array) $atts;
	$atts['format'] = ($format != '' || empty($atts['format'])) ? $format : $atts['format']; 
	$atts['format'] = html_entity_decode($atts['format']); //shorcode doesn't accept html
	if( !empty($atts['category']) && is_numeric($atts['category']) ){
		$EM_Category = new EM_Category($atts['category']);
		return ( !empty($atts['format']) ) ? $EM_Category->output($atts['format']) : $EM_Category->output_single();
	}elseif( !empty($atts['post_id']) && is_numeric($atts['post_id']) ){
		$EM_Category = new EM_Category($atts['post_id'],'post_id');
		return ( !empty($atts['format']) ) ? $EM_Category->output($atts['format']) : $EM_Category->output_single();
	}
}
add_shortcode ( 'event_category', 'em_get_event_category_shortcode' );

/**
 * DO NOT DOCUMENT! This should be replaced with shortcodes events-link and events_uri
 * @param array $atts
 * @return string
 */
function em_get_events_page_shortcode($atts) {
	$atts = shortcode_atts ( array ('justurl' => 0, 'text' => '' ), $atts );
	if($atts['justurl']){
		return EM_URI;
	}else{
		return em_get_link($atts['text']);
	}
}
add_shortcode ( 'events_page', 'em_get_events_page_shortcode' );

/**
 * Shortcode for a link to events page. Default will show events page title in link text, if you use [events_link]text[/events_link] 'text' will be the link text
 * @param array $atts
 * @param string $text
 * @return string
 */
function em_get_link_shortcode($atts, $text='') {
	return em_get_link($text);
}
add_shortcode ( 'events_link', 'em_get_link_shortcode');

/**
 * Returns the uri of the events page only
 * @return string
 */
function em_get_url_shortcode(){
	return EM_URI;
}
add_shortcode ( 'events_url', 'em_get_url_shortcode');

/**
 * CHANGE DOCUMENTATION! if you just want the url you should use shortcode events_rss_uri
 * @param array $atts
 * @return string
 */
function em_get_rss_link_shortcode($atts) {
	$atts = shortcode_atts ( array ('justurl' => 0, 'text' => 'RSS' ), $atts );
	if($atts['justurl']){
		return EM_RSS_URI;
	}else{
		return em_get_rss_link($atts['text']);
	}
}
add_shortcode ( 'events_rss_link', 'em_get_rss_link_shortcode' );

/**
 * Returns the uri of the events rss page only, takes no attributes.
 * @return string
 */
function em_get_rss_url_shortcode(){
	return EM_RSS_URI;
}
add_shortcode ( 'events_rss_url', 'em_get_rss_url_shortcode');

/**
 * Creates a form to submit events with
 * @param array $atts
 * @return string
 */
function em_get_event_form_shortcode( $args = array() ){
	return em_get_event_form( (array) $args );
}
add_shortcode ( 'event_form', 'em_get_event_form_shortcode');

/**
 * Creates a form to search events with
 * @param array $atts
 * @return string
 */
function em_get_event_search_form_shortcode( $args = array() ){
	return em_get_event_search_form( (array) $args );
}
add_shortcode ( 'event_search_form', 'em_get_event_search_form_shortcode');
add_shortcode ( 'events_search', 'em_get_event_search_form_shortcode');

/**
 * Creates a form to search locations with
 * @param array $atts
 * @return string
 */
function em_get_location_search_form_shortcode( $args = array() ){
	return em_get_location_search_form( (array) $args );
}
add_shortcode ( 'location_search_form', 'em_get_location_search_form_shortcode');
add_shortcode ( 'locations_search', 'em_get_location_search_form_shortcode');

/**
 * Shows the list of bookings the user has made. Whilst maybe useful to some, the preferred way is to create a page and assign it as a my bookings page in your settings > pages > other pages section
 * @param array $atts
 * @return string
 */
function em_get_my_bookings_shortcode(){
	return em_my_bookings();
}
add_shortcode ( 'my_bookings', 'em_get_my_bookings_shortcode');