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<?php
/**
* Recently items to display on home page
*/
class Loco_data_RecentItems extends Loco_data_Option {
/**
* Global instance of recent items
* @var Loco_data_RecentItems
*/
private static $current;
/**
* {@inheritdoc}
*/
public function getKey(){
return 'recent';
}
/**
* @return Loco_data_RecentItems
*/
public static function get(){
if( ! self::$current ){
self::$current = new Loco_data_RecentItems;
self::$current->fetch();
}
return self::$current;
}
/**
* Trash data and remove from memory
*/
public static function destroy(){
$tmp = new Loco_data_RecentItems;
$tmp->remove();
self::$current = null;
}
/**
* @internal
* @return Loco_data_RecentItems
*/
private function push( $object, array $indexes ){
foreach( $indexes as $key => $id ){
$stack = isset($this[$key]) ? $this[$key] : [];
// remove before add ensures latest item appended to hashmap
unset($stack[$id]);
$stack[$id] = time();
$this[$key] = $stack;
// TODO prune stack to maximum length
}
return $this;
}
/**
* @return array
*/
private function getItems( $key, $offset, $count ){
$stack = isset($this[$key]) ? $this[$key] : [];
// hash map should automatically be in "push" order, meaning most recent last
// sorting gives wrong order for same-second updates (only relevant in tests, but still..)
// asort( $stack, SORT_NUMERIC );
$stack = array_reverse( array_keys( $stack ) );
if( is_null($count) && 0 === $offset ){
return $stack;
}
return array_slice( $stack, $offset, $count, false );
}
/**
* @return int
*/
private function hasItem( $key, $id ){
if( isset($this[$key]) && ( $items = $this[$key] ) && isset($items[$id]) ){
return $items[$id];
}
return 0;
}
/**
* Push bundle to the front of recent bundles stack
* @return Loco_data_RecentItems
*/
public function pushBundle( Loco_package_Bundle $bundle ){
return $this->push( $bundle, [ 'bundle' => $bundle->getId() ] );
}
/**
* Get bundle IDs
* @return array
*/
public function getBundles( $offset = 0, $count = null ){
return $this->getItems('bundle', $offset, $count );
}
/**
* Check if a bundle has been recently used
* @return int timestamp item was added, 0 if absent
*/
public function hasBundle( $id ){
return $this->hasItem( 'bundle', $id );
}
/**
* TODO other types of item
* Push project to the front of recent bundles stack
* @return Loco_data_RecentItems
*
public function pushProject( Loco_package_Project $project ){
return $this;
}*/
}
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