/**
* Add a new instance or service in container
*
* @param string $key
* @param $obj
* @param callable|null $callback
* @throws ContainerException
* @throws Exception\RepositoryException
*/
public function add(string $key, $obj, callable $callback = null)
{
// Check if key already exists
if ($this->has($key)) {
throw ContainerException::keyExists(__METHOD__, $key);
}
// Determine service type
if (is_object($obj)) {
// Saving instance, so same instance will be returned every time
$this->repo->push($obj, $key);
} elseif (is_string($obj)) {
// Save path to class, new instance will be created and returned on retrieve
$this->services[$key] = new Service($obj);
// Callback with reference to service
if (isset($callback)) {
call_user_func_array($callback, [$this]);
}
} else {
// Bad service
throw ContainerException::badService(__METHOD__, gettype($obj));
}
}
