1 files changed, 90 insertions, 0 deletions
diff --git a/library/Businessprocess/Modification/NodeRemoveAction.php b/library/Businessprocess/Modification/NodeRemoveAction.php
new file mode 100644
index 0000000..3769764
--- /dev/null
+++ b/library/Businessprocess/Modification/NodeRemoveAction.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\Modification;
+
+use Icinga\Module\Businessprocess\BpConfig;
+
+/**
+ * NodeRemoveAction
+ *
+ * Tracks removed nodes
+ *
+ * @package Icinga\Module\Businessprocess
+ */
+class NodeRemoveAction extends NodeAction
+{
+    protected $preserveProperties = array('parentName');
+
+    protected $parentName;
+
+    /**
+     * @param $parentName
+     * @return $this
+     */
+    public function setParentName($parentName = null)
+    {
+        $this->parentName = $parentName;
+        return $this;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getParentName()
+    {
+        return $this->parentName;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function appliesTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        $parent = $this->getParentName();
+        if ($parent === null) {
+            if (!$config->hasNode($name)) {
+                $this->error('Toplevel process "%s" not found', $name);
+            }
+        } else {
+            if (! $config->hasNode($parent)) {
+                $this->error('Parent process "%s" missing', $parent);
+            } elseif (! $config->getBpNode($parent)->hasChild($name)) {
+                $this->error('Node "%s" not found in process "%s"', $name, $parent);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function applyTo(BpConfig $config)
+    {
+        $name = $this->getNodeName();
+        $parentName = $this->getParentName();
+        if ($parentName === null) {
+            $oldDisplay = $config->getBpNode($name)->getDisplay();
+            $config->removeNode($name);
+            if ($config->getMetadata()->isManuallyOrdered()) {
+                foreach ($config->getRootNodes() as $_ => $node) {
+                    $nodeDisplay = $node->getDisplay();
+                    if ($nodeDisplay > $oldDisplay) {
+                        $node->setDisplay($node->getDisplay() - 1);
+                    } elseif ($nodeDisplay === $oldDisplay) {
+                        break;  // Stop immediately to not make things worse ;)
+                    }
+                }
+            }
+        } else {
+            $node = $config->getNode($name);
+            $parent = $config->getBpNode($parentName);
+            $parent->removeChild($name);
+            $node->removeParent($parentName);
+            if (! $node->hasParents()) {
+                $config->removeNode($name);
+            }
+        }
+    }
+}