default.php

<?php

defined('NDA') || exit('No direct access.');

/**
 * Lists the jpg files in the media directory in which it is placed.
 * 
 * Rename to index.php for it to work automatically, when viewing the directory.
 *
 * 
 * 
 * @see https://carlalexander.ca/designing-class-generate-wordpress-html-content/
 */

/**
 * List the media of a certain type in a given directory.
 *
 * No WordPress hooks inside the class for portability purposes.
 */
class MediaList
{
	/**
	 * Use the PHP glob function to list files (of a certain type).
	 *
	 * @example glob( SITE_MEDIA_PATH . '/*.jpg')
	 */
	public function generate( $args )
	{
		$max = isset( $args['max'] ) ? $args['max'] : 5;
		$root = SITE_CDN_PATH;
		$pattern = "/*.jpg";

		$match =  $root . $args['dir'] . $pattern;

		$str = '<article>' . PHP_EOL;
		$cnt = 0;
		foreach ( glob( $match ) as $file )
		{
			$cnt++;
			if ( $cnt > $max )
			{
				break;
			}
			/** search, replace, subject */
			$src = str_replace( SITE_PATH, '', $file );
			$str .= sprintf('<a href="%s"><img src="%s" width="500" height="auto" alt="Image" class="generic" /></a>%s', SITE_URL . $src, $src, PHP_EOL );
		}
		$str .= '</article>' . PHP_EOL;
		return $str;
	}
}


/**
 * The shortcode calls a function, which then has attributes passed to it.
 * That function then instantiates a class, which processes the data and
 * then returns it.
 *
 * @see https://carlalexander.ca/designing-class-generate-wordpress-html-content/
 */
function media_list( $args )
{
	if ( ! is_array( $args ) || ! isset( $args['dir'] ) ) {
		return '<!-- Missing directory. We need this. -->';
	}

	$media_list = new MediaList();

    return $media_list -> generate( $args );
}


/**
 * If the SITE constant is defined, we assume all other related constants are defined.
 *
 * @see `/c/config/site/cfg-structure.php` for a list of these contants and their values.
 */
if( defined('SITE') )
{
	{
	media_list();
	}
}
else
{
	exit('SITE_ configuration paramaters are required for this class to work.');
}