Fix Bug 1425 NG-RO unable to pin VNF with vim_account config

If vnf vim-accounts has been changed during instantiation,
the binding between new vim-account information and
ns vld is provided through this fix.
Fixing some code format errors

Change-Id: I183c01d284047d5e49b7219eb88e6d85c0e2666c
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/osm_lcm/ns.py b/osm_lcm/ns.py
index 8ec39ad..33e5aa1 100644
--- a/osm_lcm/ns.py
+++ b/osm_lcm/ns.py
@@ -822,6 +822,37 @@
             if vld_params.get("common_id"):
                 target_vld["common_id"] = vld_params.get("common_id")
 
+        # modify target["ns"]["vld"] with instantiation parameters to override vnf vim-account
+        def update_ns_vld_target(target, ns_params):
+            for vnf_params in ns_params.get("vnf", ()):
+                if vnf_params.get("vimAccountId"):
+                    target_vnf = next(
+                        (
+                            vnfr
+                            for vnfr in db_vnfrs.values()
+                            if vnf_params["member-vnf-index"]
+                            == vnfr["member-vnf-index-ref"]
+                        ),
+                        None,
+                    )
+                    vdur = next((vdur for vdur in target_vnf.get("vdur", ())), None)
+                    for a_index, a_vld in enumerate(target["ns"]["vld"]):
+                        target_vld = find_in_list(
+                            get_iterable(vdur, "interfaces"),
+                            lambda iface: iface.get("ns-vld-id") == a_vld["name"],
+                        )
+                        if target_vld:
+                            if vnf_params.get("vimAccountId") not in a_vld.get(
+                                "vim_info", {}
+                            ):
+                                target["ns"]["vld"][a_index].get("vim_info").update(
+                                    {
+                                        "vim:{}".format(vnf_params["vimAccountId"]): {
+                                            "vim_network_name": ""
+                                        }
+                                    }
+                                )
+
         nslcmop_id = db_nslcmop["_id"]
         target = {
             "name": db_nsr["name"],
@@ -937,6 +968,8 @@
                 vld_params.update(vld_instantiation_params)
             parse_vld_instantiation_params(target_vim, target_vld, vld_params, None)
             target["ns"]["vld"].append(target_vld)
+        # Update the target ns_vld if vnf vim_account is overriden by instantiation params
+        update_ns_vld_target(target, ns_params)
 
         for vnfr in db_vnfrs.values():
             vnfd = find_in_list(
@@ -1665,7 +1698,8 @@
                     base_folder["folder"],
                     base_folder["pkg-dir"],
                     "charms"
-                    if vca_type in ("native_charm", "lxc_proxy_charm", "k8s_proxy_charm")
+                    if vca_type
+                    in ("native_charm", "lxc_proxy_charm", "k8s_proxy_charm")
                     else "helm-charts",
                     vca_name,
                 )
@@ -1673,7 +1707,8 @@
                 artifact_path = "{}/Scripts/{}/{}/".format(
                     base_folder["folder"],
                     "charms"
-                    if vca_type in ("native_charm", "lxc_proxy_charm", "k8s_proxy_charm")
+                    if vca_type
+                    in ("native_charm", "lxc_proxy_charm", "k8s_proxy_charm")
                     else "helm-charts",
                     vca_name,
                 )
@@ -2004,12 +2039,10 @@
                     for job in prometheus_jobs:
                         self.db.set_one(
                             "prometheus_jobs",
-                            {
-                                "job_name": job["job_name"]
-                            },
+                            {"job_name": job["job_name"]},
                             job,
                             upsert=True,
-                            fail_on_empty=False
+                            fail_on_empty=False,
                         )
 
             step = "instantiated at VCA"
@@ -2784,7 +2817,9 @@
                 if requirer_id != nsd["id"]:
                     requirer_dict["vnf-profile-id"] = requirer_id
             else:
-                raise Exception("provider/requirer or entities must be included in the relation.")
+                raise Exception(
+                    "provider/requirer or entities must be included in the relation."
+                )
             relation_provider = self._update_ee_relation_data_with_implicit_data(
                 nsr_id, nsd, provider_dict, cached_vnfds
             )
@@ -2836,7 +2871,9 @@
                 if requirer_id != vnfd_id:
                     requirer_dict["vdu-profile-id"] = requirer_id
             else:
-                raise Exception("provider/requirer or entities must be included in the relation.")
+                raise Exception(
+                    "provider/requirer or entities must be included in the relation."
+                )
             relation_provider = self._update_ee_relation_data_with_implicit_data(
                 nsr_id, nsd, provider_dict, cached_vnfds, vnf_profile_id=vnf_profile_id
             )
@@ -6342,13 +6379,7 @@
             )
 
     async def extract_prometheus_scrape_jobs(
-        self,
-        ee_id,
-        artifact_path,
-        ee_config_descriptor,
-        vnfr_id,
-        nsr_id,
-        target_ip
+        self, ee_id, artifact_path, ee_config_descriptor, vnfr_id, nsr_id, target_ip
     ):
         # look if exist a file called 'prometheus*.j2' and
         artifact_content = self.fs.dir_ls(artifact_path)