From b799302fd6bca63f798049e92af85418c207d7d3 Mon Sep 17 00:00:00 2001
From: Soufiane Echkem <sechkem@ext.centreon.com>
Date: Thu, 24 Oct 2024 16:11:21 +0100
Subject: [PATCH] feat(engine/gRPC): GetContactGroup return information about a
 contact group.

---
 engine/enginerpc/engine.proto                 | 11 +++++
 engine/enginerpc/engine_impl.cc               | 45 +++++++++++++++++++
 engine/inc/com/centreon/engine/engine_impl.hh |  3 ++
 3 files changed, 59 insertions(+)

diff --git a/engine/enginerpc/engine.proto b/engine/enginerpc/engine.proto
index a0c91ffdcf..2ef1e00443 100644
--- a/engine/enginerpc/engine.proto
+++ b/engine/enginerpc/engine.proto
@@ -36,6 +36,7 @@ service Engine {
   rpc GetContact(ContactIdentifier) returns (EngineContact) {}
   rpc GetService(ServiceIdentifier) returns (EngineService) {}
   rpc GetHostGroup(HostGroupIdentifier) returns (EngineHostGroup) {}
+  rpc GetContactGroup(ContactGroupIdentifier) returns (EngineContactGroup) {}
   rpc GetHostsCount(google.protobuf.Empty) returns (GenericValue) {}
   rpc GetContactsCount(google.protobuf.Empty) returns (GenericValue) {}
   rpc GetServicesCount(google.protobuf.Empty) returns (GenericValue) {}
@@ -690,6 +691,16 @@ message EngineHostGroup {
   string action_url = 7;
 }
 
+message ContactGroupIdentifier {
+  string name = 1;
+}
+
+message EngineContactGroup {
+  string name = 1;
+  string alias = 2;
+  repeated string members = 3;
+}
+
 message EngineComment {
   string host_name = 1;
   string svc_desc = 2;
diff --git a/engine/enginerpc/engine_impl.cc b/engine/enginerpc/engine_impl.cc
index 737d577887..cd08e32405 100644
--- a/engine/enginerpc/engine_impl.cc
+++ b/engine/enginerpc/engine_impl.cc
@@ -845,6 +845,51 @@ grpc::Status engine_impl::GetHostGroup(grpc::ServerContext* context
     return grpc::Status(grpc::INVALID_ARGUMENT, err);
 }
 
+/**
+ * @brief Return ContactGroup informations.
+ *
+ * @param context gRPC context
+ * @param request ContactGroup's identifier (by ContactGroup name)
+ * @param response The filled fields
+ *
+ *@return Status::OK
+ */
+grpc::Status engine_impl::GetContactGroup(grpc::ServerContext* context
+                                          [[maybe_unused]],
+                                          const ContactGroupIdentifier* request,
+                                          EngineContactGroup* response) {
+  std::string err;
+  auto fn = std::packaged_task<int(void)>([&err, request,
+                                           contactgroup =
+                                               response]() -> int32_t {
+    std::shared_ptr<com::centreon::engine::contactgroup> selectedcontactgroup;
+    auto itcontactgroup = contactgroup::contactgroups.find(request->name());
+    if (itcontactgroup != contactgroup::contactgroups.end())
+      selectedcontactgroup = itcontactgroup->second;
+    else {
+      err = fmt::format("could not find contactgroup '{}'", request->name());
+      return 1;
+    }
+
+    contactgroup->set_name(selectedcontactgroup->get_name());
+    contactgroup->set_alias(selectedcontactgroup->get_alias());
+
+    if (!selectedcontactgroup->get_members().empty())
+      for (const auto& [key, _] : selectedcontactgroup->get_members())
+        contactgroup->add_members(key);
+
+    return 0;
+  });
+
+  std::future<int32_t> result = fn.get_future();
+  command_manager::instance().enqueue(std::move(fn));
+
+  if (result.get() == 0)
+    return grpc::Status::OK;
+  else
+    return grpc::Status(grpc::INVALID_ARGUMENT, err);
+}
+
 /**
  * @brief Return the total number of hosts.
  *
diff --git a/engine/inc/com/centreon/engine/engine_impl.hh b/engine/inc/com/centreon/engine/engine_impl.hh
index 2c06af3bc0..69c7ae2fe1 100644
--- a/engine/inc/com/centreon/engine/engine_impl.hh
+++ b/engine/inc/com/centreon/engine/engine_impl.hh
@@ -60,6 +60,9 @@ class engine_impl final : public Engine::Service {
   grpc::Status GetHostGroup(grpc::ServerContext* context,
                             const HostGroupIdentifier*,
                             EngineHostGroup*) override;
+  grpc::Status GetContactGroup(grpc::ServerContext* context,
+                               const ContactGroupIdentifier* request,
+                               EngineContactGroup* response) override;
   grpc::Status AddHostComment(grpc::ServerContext* context,
                               const EngineComment* request,
                               CommandSuccess* response) override;