/**
*
* @param FetcherOperation $operation
* @throws \InvalidArgumentException
*
* @return \Berthe\Fetcher
*/
protected function addFilterOperation(FetcherOperation $operation)
{
$newOperation = $operation;
$groupName = $operation->getGroupName();
$previousOperation = $this->rootOperation->getOperation($groupName);
//If there's already an operation for that group
if ($previousOperation != null) {
$groupFilterOperator = $this->getFilterOperator($groupName);
$createNewList = true;
if ($previousOperation instanceof ListOperation) {
//If the previous operation is a list containing the groupName, we don't create a new list
$subOperations = $previousOperation->getOperations();
foreach ($subOperations as $subOperation) {
if ($subOperation->getGroupName() == $groupName) {
$createNewList = false;
break;
}
}
}
if ($createNewList) {
//We crate a list operation with the name of the group
$newOperation = new ListOperation($groupFilterOperator, $groupName);
//We add the retrieved operation to the new operation created
$newOperation->addOperation($previousOperation);
} else {
$newOperation = $previousOperation;
}
//We add the new operation to the list operation retrieved/created
$newOperation->addOperation($operation);
}
//If it's the first for its group, we keep it unchanged
$this->rootOperation->addOperation($newOperation);
return $this;
}
