1 files changed, 168 insertions, 0 deletions
diff --git a/library/Director/Data/ObjectImporter.php b/library/Director/Data/ObjectImporter.php
new file mode 100644
index 0000000..231ad1c
--- /dev/null
+++ b/library/Director/Data/ObjectImporter.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Icinga\Module\Director\Data;
+
+use gipfl\Json\JsonDecodeException;
+use gipfl\Json\JsonString;
+use Icinga\Module\Director\Data\Db\DbObject;
+use Icinga\Module\Director\Db;
+use Icinga\Module\Director\DirectorObject\Automation\Basket;
+use Icinga\Module\Director\Objects\DirectorJob;
+use Icinga\Module\Director\Objects\IcingaHost;
+use Icinga\Module\Director\Objects\IcingaService;
+use Icinga\Module\Director\Objects\IcingaServiceSet;
+use Icinga\Module\Director\Objects\ImportSource;
+use Icinga\Module\Director\Objects\SyncRule;
+use InvalidArgumentException;
+use Ramsey\Uuid\Uuid;
+use stdClass;
+
+class ObjectImporter
+{
+    protected static $templatesOnly = [
+        IcingaHost::class,
+        IcingaService::class,
+        IcingaServiceSet::class,
+    ];
+
+    /** @var Db */
+    protected $db;
+
+    public function __construct(Db $db)
+    {
+        $this->db = $db;
+    }
+
+    /**
+     * @param class-string|DbObject $implementation
+     * @param stdClass $plain
+     * @return DbObject
+     * @throws JsonDecodeException
+     */
+    public function import(string $implementation, stdClass $plain): DbObject
+    {
+        $this->assertTemplate($implementation, $plain);
+        $this->fixRelations($implementation, $plain);
+        $this->applyOtherWorkarounds($implementation, $plain);
+        $this->fixLegacyBaskets($implementation, $plain);
+        $this->fixSubObjects($implementation, $plain);
+
+        $object = $this->loadExistingObject($implementation, $plain);
+        if ($object === null) {
+            $object = $implementation::create([], $this->db);
+        }
+
+        $properties = (array) $plain;
+        unset($properties['fields']);
+        unset($properties['originalId']);
+        if ($implementation === Basket::class) {
+            if (isset($properties['objects']) && is_string($properties['objects'])) {
+                $properties['objects'] = JsonString::decode($properties['objects']);
+            }
+        }
+        $object->setProperties($properties);
+
+        return $object;
+    }
+
+    protected function fixLegacyBaskets(string $implementation, stdClass $plain)
+    {
+        // TODO: Check, whether current export sets modifiers = [] in case there is none
+        if ($implementation == ImportSource::class) {
+            if (!isset($plain->modifiers)) {
+                $plain->modifiers = [];
+            }
+        }
+    }
+
+    protected function applyOtherWorkarounds(string $implementation, stdClass $plain)
+    {
+        if ($implementation === SyncRule::class) {
+            if (isset($plain->properties)) {
+                $plain->syncProperties = $plain->properties;
+                unset($plain->properties);
+            }
+        }
+    }
+
+    protected function fixSubObjects(string $implementation, stdClass $plain)
+    {
+        if ($implementation === IcingaServiceSet::class) {
+            foreach ($plain->services as $service) {
+                unset($service->fields);
+            }
+            // Hint: legacy baskets are carrying service names as object keys, new baskets have arrays
+            $plain->services = array_values((array) $plain->services);
+        }
+    }
+
+    protected function fixRelations(string $implementation, stdClass $plain)
+    {
+        if ($implementation === DirectorJob::class) {
+            $settings = $plain->settings;
+            $source = $settings->source ?? null;
+            if ($source && !isset($settings->source_id)) {
+                $settings->source_id = ImportSource::load($source, $this->db)->get('id');
+                unset($settings->source);
+            }
+            $rule = $settings->rule ?? null;
+            if ($rule && !isset($settings->rule_id)) {
+                $settings->rule_id = SyncRule::load($rule, $this->db)->get('id');
+                unset($settings->rule);
+            }
+        }
+    }
+
+    /**
+     * @param class-string<DbObject> $implementation
+     * @param stdClass $plain
+     * @return DbObject|null
+     */
+    protected function loadExistingObject(string $implementation, stdClass $plain): ?DbObject
+    {
+        if (isset($plain->uuid)
+            && $instance = $implementation::loadWithUniqueId(Uuid::fromString($plain->uuid), $this->db)
+        ) {
+            return $instance;
+        }
+
+        if ($implementation === IcingaService::class) {
+            $key = [
+                'object_type' => 'template',
+                'object_name' => $plain->object_name
+            ];
+        } else {
+            $dummy = $implementation::create();
+            $keyColumn = $dummy->getKeyName();
+            if (is_array($keyColumn)) {
+                if (empty($keyColumn)) {
+                    throw new \RuntimeException("$implementation has an empty keyColumn array");
+                }
+                $key = [];
+                foreach ($keyColumn as $column) {
+                    if (isset($plain->$column)) {
+                        $key[$column] = $plain->$column;
+                    }
+                }
+            } else {
+                $key = $plain->$keyColumn;
+            }
+        }
+
+        return $implementation::loadOptional($key, $this->db);
+    }
+
+    protected function assertTemplate(string $implementation, stdClass $plain)
+    {
+        if (! in_array($implementation, self::$templatesOnly)) {
+            return;
+        }
+        if ($plain->object_type !== 'template') {
+            throw new InvalidArgumentException(sprintf(
+                'Can import only Templates, got "%s" for "%s"',
+                $plain->object_type,
+                $plain->name
+            ));
+        }
+    }
+}