<?php

/*
 * Feed Enclosure
 * @description: Stores RSS enclosures and provides a way to access them when browsing aggregated node content
 *
 * @author: Mike Carter < mike @ www.ixis.co.uk/contact >
 */

function feedenclosure_help($section) {
  switch ($section) {
    case 'admin/help#feedenclosure':
			return t('To be written.');
    case 'admin/modules#description':
      return t('Handle RSS feed enclosures.');
	}
}


function feedenclosure_feedapi($feed, $op, $item = NULL) {
	switch($op) {
		case 'item_save':
      $iid = $item->data['iid'];
		  $enclosures = $item->get_enclosures();

			if($enclosures) {
			  foreach($enclosures as $enclosure) {
				  $eid = db_next_id('aggregator_enclosure');
				  db_query("INSERT INTO {aggregator_enclosure} SET eid = %d, iid = %d, link = '%s', fid = '%d', length = %d, type = '%s'", $eid, $iid, $enclosure->get_link(), $feed['fid'], $enclosure->get_length(), $enclosure->get_type());
				}
			}
			break;

		case 'remove':
			db_query('DELETE FROM {aggregator_enclosure} WHERE fid = %d', $feed['fid']);
			break;
	}
}

function feedenclosure_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
	if($node->type == 'aggregator-item' && $op == 'load') {
		$enclosure = feedenclosure_get_enclosure($node);
		if($enclosure) {
			$node->enclosure[] = $enclosure;
		}
	}

}

function feedenclosure_get_enclosure(&$node) {
	return db_fetch_array(db_query("SELECT * FROM {aggregator_enclosure} WHERE fid = %d AND iid = %d", $node->fid, $node->iid));
}

function feedenclosure_link($type, $node = NULL, $teaser = FALSE) {
	if($type == 'node' && isset($node->fid) && isset($node->iid)) {
		$enclosure = feedenclosure_get_enclosure($node);
		if($enclosure) {
			$links['feedenclosure'] = theme('feedenclosure_link', $enclosure);
			return $links;
		}
	}
}

function theme_feedenclosure_link($enclosure) {
  if (!empty($enclosure['length'])) {
		    $size = ' (' . round($enclosure['length']/1048576, 2) . ' MB)';
  } else {
		$size = t('of unknown size');
	}

	return array(
        'title' => t('download attachment @size', array('@size' => $size)),
        'href' => $enclosure['link'],
        'attributes' => array('class' => 'enclosure'),
      );
}