<?php
/**
 * Utility functions
 */
function is_element_empty($element) {
  $element = trim($element);
  return !empty($element);
}

// Tell WordPress to use searchform.php from the templates/ directory
function roots_get_search_form($form) {
  $form = '';
  locate_template('/templates/searchform.php', true, false);
  return $form;
}
add_filter('get_search_form', 'roots_get_search_form');


//CONTENT HELPERS

function get_calendar_page($params = array()) {

	$params = (!empty($params) ? $params : (!empty($_POST) ? $_POST : array()));

	$month = ( !empty($params['month']) ? $params['month'] : date('m') );
	$year = ( !empty($params['year']) ? $params['year'] : date('Y') );

	ob_start();
		include(locate_template('/templates/snippets/events-calendar.php'));
		$html = ob_get_contents();

	ob_end_clean();

	if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
		die(json_encode($html));
	} else {
		echo $html;
	}
	return;
}
add_action("wp_ajax_nopriv_get_calendar_page", "get_calendar_page");
add_action("wp_ajax_get_calendar_page", "get_calendar_page");



function get_events($params = array()) {

	$params = (!empty($params) ? $params : (!empty($_POST) ? $_POST : array()));

	if(!empty($params['paged'])) $custom_args['paged'] = $params['paged'];
	if(!empty($params['posts_per_page'])) $custom_args['posts_per_page'] = $params['posts_per_page'];

	$meta_query = array('relation' => 'AND');
	$tax_query = array('relation' => 'AND');

	if(!empty($params['tax'])):
      foreach ($params['tax'] as $tax_key => $tax):
          if(!empty($tax) && $tax && $tax != "null"):
          		if(!is_array($tax)) $tax = array( $tax );
              $tax_query[] = array(
                  'taxonomy' => $tax_key,
                  'field'    => 'term_id',
                  'terms'    => $tax,
              );
          endif;
      endforeach;
  endif;

	if( !empty($params['date']) && $params['date'] && $params['date'] != "null"):
		$date_start = strtotime( date('d-m-Y', $params['date']) );
		$date_end = strtotime( date('d-m-Y', $params['date']) . ' + 1day' );
		$meta_query[]	= array(
								array(
									"key"		=>	"event_start_time",
									"compare"	=>	"BETWEEN",
									"value"		=>	array( $date_start, $date_end ),
								)
							);
  endif;


	$default_args = array(
		'post_type' 			=> 'event',
		"orderby"					=> "event_start_time",
		"order"						=> "ASC",
		"posts_per_page"	=> -1,
		"paged"						=> 1,
		'tax_query' 			=> $tax_query,
		'meta_query' 			=> $meta_query,
	);


	$args = array_merge( $default_args, $custom_args );

	$query = new WP_Query( $args );

	ob_start();

		/* ?><div class="result-item grid-item col-sm-12"><pre><?php
			print_r($query->request);
		?></pre></div><?php */

		if ( $query->have_posts() ): ?>
				<?php while ( $query->have_posts() ): $query->the_post(); ?>
	  			<?php get_template_part('templates/snippets/event-item'); ?>
				<?php endwhile; ?>
		<?php endif;

		$html = ob_get_contents();

	ob_end_clean();

	wp_reset_query();

	$return = array(
			'found_posts' => $query->found_posts,
			'max_num_pages' => $query->max_num_pages,
			'query_id' => $_POST['query_id'],
			'html' => $html,
			'mq' => $meta_query,
	);

	if(!empty($_POST['query_id'])):
		die(json_encode($return));
	else:
		return $return;
	endif;

}

add_action("wp_ajax_nopriv_get_events", "get_events");
add_action("wp_ajax_get_events", "get_events");