From b25237cbbda9597ec8904538d71d15b488445fc2 Mon Sep 17 00:00:00 2001
From: Christian Eltzschig <me@elchris.org>
Date: Mon, 8 Jul 2024 14:13:32 +0200
Subject: [PATCH] [#264] Create Node C++ skeleton

---
 .../cxx/publish_subscribe/src/publisher.cpp   |  10 ++
 iceoryx2-ffi/cxx/include/iox2/node.hpp        | 103 +++++++++++++++++-
 2 files changed, 112 insertions(+), 1 deletion(-)

diff --git a/examples/cxx/publish_subscribe/src/publisher.cpp b/examples/cxx/publish_subscribe/src/publisher.cpp
index e5cd84508..864df8bb4 100644
--- a/examples/cxx/publish_subscribe/src/publisher.cpp
+++ b/examples/cxx/publish_subscribe/src/publisher.cpp
@@ -13,5 +13,15 @@
 #include "iox2/node.hpp"
 
 int main() {
+    using namespace iox2;
+    auto node =
+        NodeBuilder()
+            .name(NodeName::create("hello world").expect("valid node name"))
+            .template create<NodeType::ZERO_COPY>()
+            .expect("successful node creation");
+
+    Node<NodeType::ZERO_COPY>::list(
+        Config{}, [](auto) { return iox::ok(CallbackProgression::Continue); });
+
     return 0;
 }
diff --git a/iceoryx2-ffi/cxx/include/iox2/node.hpp b/iceoryx2-ffi/cxx/include/iox2/node.hpp
index 6ff4446c5..def34498d 100644
--- a/iceoryx2-ffi/cxx/include/iox2/node.hpp
+++ b/iceoryx2-ffi/cxx/include/iox2/node.hpp
@@ -9,5 +9,106 @@
 // which is available at https://opensource.org/licenses/MIT.
 //
 // SPDX-License-Identifier: Apache-2.0 OR MIT
+#ifndef IOX2_NODE_HPP_
+#define IOX2_NODE_HPP_
 
-// TODO: [#210] implement
+#include <iox2/iceoryx2.h>
+
+#include <iox/builder.hpp>
+#include <iox/expected.hpp>
+#include <iox/function.hpp>
+#include <iox/optional.hpp>
+#include <string>
+
+namespace iox2 {
+enum class SemanticStringError {};
+
+enum class NodeListFailure {};
+
+enum class CallbackProgression { Continue, Stop };
+
+enum class NodeCreationFailure {};
+
+enum class NodeCleanupFailure {};
+
+enum class NodeType { PROCESS_LOCAL, ZERO_COPY };
+
+class Config {};
+
+class NodeId {};
+
+class NodeName {
+   public:
+    static iox::expected<NodeName, SemanticStringError> create(
+        const char* value);
+
+    const std::string& as_string() const;
+
+   private:
+    std::string value;
+};
+
+class ServiceName {
+   public:
+    static iox::expected<ServiceName, SemanticStringError> create(
+        const char* value);
+    const std::string& as_string() const;
+};
+
+template <NodeType>
+class Builder {};
+
+class NodeDetails {
+   public:
+    const NodeName& name() const;
+    const Config& config() const;
+};
+
+template <NodeType>
+class AliveNodeView {
+   public:
+    const NodeId& id() const;
+    const iox::optional<NodeDetails> details() const;
+};
+
+template <NodeType>
+class DeadNodeView {
+   public:
+    const NodeId& id() const;
+    const iox::optional<NodeDetails> details() const;
+    iox::expected<bool, NodeCleanupFailure> remove_stale_resources();
+};
+
+template <NodeType T>
+class NodeState {
+   public:
+    NodeState& if_alive(iox::function<void(AliveNodeView<T>&)> callback);
+    NodeState& is_dead(iox::function<void(DeadNodeView<T>&)> callback);
+};
+
+template <NodeType T>
+class Node {
+   public:
+    NodeName& name() const;
+    NodeId& id() const;
+    Builder<T> service_builder(const ServiceName& name) const;
+
+    static iox::expected<void, NodeListFailure> list(
+        const Config& config,
+        const iox::function<iox::expected<CallbackProgression, NodeListFailure>(
+            iox::expected<NodeState<T>, NodeListFailure>)>& callback);
+
+   private:
+};
+
+class NodeBuilder {
+    IOX_BUILDER_PARAMETER(NodeName, name, NodeName::create("").expect(""))
+    IOX_BUILDER_PARAMETER(Config, config, Config{})
+
+   public:
+    template <NodeType T>
+    iox::expected<Node<T>, NodeCreationFailure> create() const;
+};
+}  // namespace iox2
+
+#endif