New service function (#36)

Reviewed-on: #36
Reviewed-by: Tino Schreiber <tino.schreiber@t-systems.com>
Co-authored-by: Sebastian Gode <sebastian.gode@telekom.de>
Co-committed-by: Sebastian Gode <sebastian.gode@telekom.de>

otc_metadata/services.py

@@ -453,3 +453,25 @@ class Services(object):
         res.sort(key=lambda x: x.get("name", "").lower())
 
         return res
+
+    def all_services_by_cloud_environment(self, cloud_environment, environments):
+        """Retrieve all services filtered by cloud_environment
+        """
+        res = []
+        for srv in self.all_services:
+            if environments and cloud_environment:
+                for srv_cloud_environment in srv["cloud_environments"]:
+                    if srv_cloud_environment["name"] == cloud_environment:
+                        for environment in environments:
+                            if srv_cloud_environment["visibility"] == environment:
+                                res.append(srv)
+                    else:
+                        continue
+            else:
+                raise Exception("No cloud_environment or environments "
+                                "specified in function all_services_by_cloud_environment.")
+
+        # Sort services
+        res.sort(key=lambda x: x.get("service_title", "").lower())
+
+        return res