Add podcasts to homepage

theme/functions.php

@@ -43,3 +43,95 @@ function windycoys_get_deploy_timestamp() {
   }
   return false;
 }
+
+function windycoys_create_podcasts_table() {
+  global $wpdb;
+  $charset_collate = $wpdb->get_charset_collate();
+  $sql = "CREATE TABLE windycoys_podcasts (
+    id int(2) NOT NULL AUTO_INCREMENT,
+    podcast_id varchar(3) DEFAULT '' NOT NULL,
+    last_update bigint(10) DEFAULT 0 NOT NULL,
+    content longtext DEFAULT '' NOT NULL,
+    PRIMARY KEY  (id)
+  ) $charset_collate;";
+  require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
+  dbDelta($sql);
+  $wpdb->insert('windycoys_podcasts', array(
+    'podcast_id' => 'tfc',
+    'last_update' => 0,
+    'content' => '{}'
+  ));
+  $wpdb->insert('windycoys_podcasts', array(
+    'podcast_id' => 'xin',
+    'last_update' => 0,
+    'content' => '{}'
+  ));
+}
+
+function windycoys_fetch_podcast_meta($id) {
+  global $wpdb;
+  $urls = array(
+    'tfc' => 'https://rss.acast.com/thefightingcock',
+    'xin' => 'https://rss.acast.com/theextrainch',
+  );
+  $feed = file_get_contents($urls[$id]);
+  $feed = str_replace('<media:', '<', $feed);
+  $feed = str_replace('</media:', '</', $feed);
+  $feed = str_replace('<itunes:', '<', $feed);
+  $feed = str_replace('</itunes:', '</', $feed);
+  $now = time();
+  $wpdb->update("windycoys_podcasts",
+    array('last_update' => $now, 'content' => $feed),
+    array('podcast_id'=>$id)
+  );
+  return $feed;
+}
+
+function windycoys_refresh_podcast_meta($id) {
+  global $wpdb;
+  $now = time();
+  $res = $wpdb->get_row('SELECT * FROM windycoys_podcasts WHERE
+    podcast_id = "' . $id .'"');
+  if (!$res) {
+    windycoys_create_podcasts_table();
+  }
+  if ($res->last_update + 300 < $now) {
+    return array(
+      from_cache => false,
+      data => windycoys_fetch_podcast_meta($id),
+    );
+  }
+  return array(
+    from_cache => true,
+    data => $res->content,
+  );
+}
+
+function windycoys_get_episodes_url($id) {
+  $urls = array(
+    'tfc' => 'https://play.acast.com/s/thefightingcock',
+    'xin' => 'https://play.acast.com/s/theextrainch',
+  );
+  return $urls[$id];
+}
+
+function windycoys_get_podcast_meta($id) {
+  $res = windycoys_refresh_podcast_meta($id);
+  $rss = simplexml_load_string($res['data']);
+  $item = $rss->channel->item;
+  $date = strtotime((String) $item->pubDate);
+  return array(
+    from_cache => $res['from_cache'],
+    podcast_title => (String) $rss->channel->title,
+    podcast_description => (String) $rss->channel->description,
+    podcast_url => (String) $rss->channel->image->url,
+    podcast_episodes => windycoys_get_episodes_url($id),
+    title => (String) $item->title,
+    description => (String) $item->description,
+    image => (String) $item->image['href'],
+    date => date('jS F, Y', $date).' at '.date('H:i', $date),
+    length => (String) $item->duration,
+    url => (String) $item->link,
+    audio => (String) $item->enclosure['url'],
+  );
+}