Added caching to Sources

Added caching to Sources.
Updated the source browser to mark sources which are still cached

HandBrakeCluster/Rips/Source.class.php

@@ -11,10 +11,28 @@ class HandBrakeCluster_Rips_Source {
     protected $output;
     protected $titles = array();
 
-    public function __construct($source) {
+    public function __construct($source_filename, $use_cache) {
-        $this->source = $source;
+        $this->source = $source_filename;
 
         $this->scan();
+
+        $main   = HandBrakeCluster_Main::instance();
+        $cache  = $main->cache();
+        $config = $main->config();
+        
+        if ($use_cache) {
+            $cache->store($this->source, serialize($this), $config->get('rips.cache_ttl'));
+        }
+    }
+    
+    public static function load($source_filename, $use_cache = true) {
+        $cache = HandBrakeCluster_Main::instance()->cache();
+
+        if ($use_cache && $cache->exists($source_filename)) {
+            return unserialize($cache->fetch($source_filename));
+        } else {
+            return new HandBrakeCluster_Rips_Source($source_filename, $use_cache);
+        }
     }
 
     protected function scan() {
@@ -124,6 +142,14 @@ class HandBrakeCluster_Rips_Source {
         }
     }
     
+    public static function isCached($source_filename) {
+        $main   = HandBrakeCluster_Main::instance();
+        $cache  = $main->cache();
+        $config = $main->config();
+
+        return $cache->exists($source_filename, $config->get('rips.cache_ttl'));
+    }
+    
     public function addTitle(HandBrakeCluster_Rips_SourceTitle $title) {
         $this->titles[] = $title;
     }

pages/browse/source-details.php

@@ -18,11 +18,10 @@ if (substr($real_source_path, 0, strlen($real_source_dir)) != $real_source_dir)
     return;
 }
 
-$source = new HandBrakeCluster_Rips_Source($source_path);
+$source = HandBrakeCluster_Rips_Source::load($source_path);
 
 $this->smarty->assign('source_path', $source_path);
 $this->smarty->assign('source', $source);
-$this->smarty->assign('output', $source->output());
 $this->smarty->assign('titles', $source->titles());
 
 ?>

pages/browse/sources.php

@@ -4,7 +4,14 @@ $main = HandBrakeCluster_Main::instance();
 $config = $main->config();
 
 $lister = new HandBrakeCluster_Rips_SourceLister($config->get('rips.source_dir'));
+$sources = $lister->sources();
 
-$this->smarty->assign('sources', $lister->sources());
+$sources_cached = array();
+foreach ($sources as $source) {
+    $sources_cached[$source] = HandBrakeCluster_Rips_Source::isCached($source);
+}
+
+$this->smarty->assign('sources', $sources);
+$this->smarty->assign('sources_cached', $sources_cached);
 
 ?>

templates/browse/sources.tpl

@@ -2,11 +2,15 @@
 
 {if $sources}
 	<p>
-		The following DVD sources are available to be ripped:
+		The list below contains all the DVD sources that are available and ready for ripping.
+	</p>
+	<p>
+		Sources that have recently been scanned are marked <em>(cached)</em> and will load fairly quickly.
+		Sources that have not been cached will be scanned when the link is clicked, and this may take several minutes so please be patient.
 	</p>
 	<ul>
 		{foreach from=$sources item=source}
-			<li><a href="{$base_uri}browse/source-details/id/{$source|base64_encode|replace:"/":"-"}" title="View source details">{$source|escape:'html'}</a></li>
+			<li><a href="{$base_uri}browse/source-details/id/{$source|base64_encode|replace:"/":"-"}" title="View source details">{$source|escape:'html'}</a>{if $sources_cached.$source} (cached){/if}</li>
 		{/foreach}
 	</ul>
 {else}