From 4de67f65e6b7e0dc5079700b4c09f2652d56eb33 Mon Sep 17 00:00:00 2001
From: falsycat <me@falsy.cat>
Date: Mon, 14 Nov 2022 00:40:48 +0900
Subject: [PATCH] add System/Node/Time

---
 file/system_node.cc | 24 ++++++++++++++++++++----
 init.hh             |  6 ++++++
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/file/system_node.cc b/file/system_node.cc
index 6d461f6..675f261 100644
--- a/file/system_node.cc
+++ b/file/system_node.cc
@@ -1,8 +1,8 @@
+#include <chrono>
 #include <memory>
 
 #include "nf7.hh"
 
-#include "common/generic_dir.hh"
 #include "common/generic_type_info.hh"
 #include "common/node.hh"
 #include "common/pure_node_file.hh"
@@ -19,7 +19,7 @@ class Save final : public nf7::Node::Lambda,
   static inline nf7::GenericTypeInfo<nf7::PureNodeFile<Save>> kType = {
     "System/Node/Save", {},
   };
-  static inline const nf7::Node::Meta kMeta = { {"exec"}, {}, };
+  static inline const nf7::Node::Meta kMeta = {{"exec"}, {},};
 
   using nf7::Node::Lambda::Lambda;
   void Handle(const nf7::Node::Lambda::Msg&) noexcept override {
@@ -34,7 +34,7 @@ class Exit final : public nf7::Node::Lambda {
   static inline nf7::GenericTypeInfo<nf7::PureNodeFile<Exit>> kType = {
     "System/Node/Exit", {},
   };
-  static inline const nf7::Node::Meta kMeta = { {"exec"}, {}, };
+  static inline const nf7::Node::Meta kMeta = {{"exec"}, {},};
 
   using nf7::Node::Lambda::Lambda;
   void Handle(const nf7::Node::Lambda::Msg&) noexcept override {
@@ -47,7 +47,7 @@ class Panic final : public nf7::Node::Lambda {
   static inline nf7::GenericTypeInfo<nf7::PureNodeFile<Panic>> kType = {
     "System/Node/Panic", {},
   };
-  static inline const nf7::Node::Meta kMeta = { {"exec"}, {}, };
+  static inline const nf7::Node::Meta kMeta = {{"exec"}, {},};
 
   using nf7::Node::Lambda::Lambda;
   void Handle(const nf7::Node::Lambda::Msg& in) noexcept override {
@@ -64,5 +64,21 @@ class Panic final : public nf7::Node::Lambda {
   }
 };
 
+class Time final : public nf7::Node::Lambda,
+    public std::enable_shared_from_this<Time> {
+ public:
+  static inline nf7::GenericTypeInfo<nf7::PureNodeFile<Time>> kType = {
+    "System/Node/Time", {},
+  };
+  static inline const nf7::Node::Meta kMeta = {{"get"}, {"time"},};
+
+  using nf7::Node::Lambda::Lambda;
+  void Handle(const nf7::Node::Lambda::Msg& in) noexcept override {
+    const auto time = nf7::Env::Clock::now();
+    const auto sec  = std::chrono::duration<nf7::Value::Scalar> {time.time_since_epoch()};
+    in.sender->Handle("time", sec.count(), shared_from_this());
+  }
+};
+
 }  // namespace
 }  // namespace nf7
diff --git a/init.hh b/init.hh
index f62cad9..f6d71b5 100644
--- a/init.hh
+++ b/init.hh
@@ -21,11 +21,17 @@ inline std::unique_ptr<nf7::File> CreateRoot(nf7::Env& env) noexcept {
 
   auto& node = Add(root, "node", "System/Dir").interfaceOrThrow<nf7::Dir>();
   {
+    auto& codec = Add(node, "codec", "System/Node").interfaceOrThrow<nf7::Dir>();
+    {
+      Add(codec, "stbimage",  "Codec/StbImage");
+    }
+
     auto& system = Add(node, "system", "System/Node").interfaceOrThrow<nf7::Dir>();
     {
       Add(system, "save",  "System/Node/Save");
       Add(system, "exit",  "System/Node/Exit");
       Add(system, "panic", "System/Node/Panic");
+      Add(system, "time",  "System/Node/Time");
     }
   }