From 2c1a508c304ac8b3109b46ff524ec02e71829a3f Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Thu, 14 Oct 2021 23:58:34 +0200
Subject: Extended client by adding sample state mutation to daemon and lib

---
 daemon/src/daemon.cpp        |  7 +++++++
 library/include/hwd.h        |  2 ++
 library/src/library.cpp      | 10 +++++++++
 sample_client/src/client.cpp | 50 ++++++++++++++++++++++++++++++++++++++++++--
 4 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/daemon/src/daemon.cpp b/daemon/src/daemon.cpp
index feb6570..352218d 100644
--- a/daemon/src/daemon.cpp
+++ b/daemon/src/daemon.cpp
@@ -9,5 +9,12 @@ int main(int, char **)
 	server.bind("stop_server", []{
 		rpc::this_server().stop();
 	});
+	int value = 0;
+	server.bind("set_value", [&value](int a){
+		value = a;
+	});
+	server.bind("get_value", [&value](){
+		return value;
+	});
 	server.run();
 }
diff --git a/library/include/hwd.h b/library/include/hwd.h
index afb7b20..197b44b 100644
--- a/library/include/hwd.h
+++ b/library/include/hwd.h
@@ -3,4 +3,6 @@
 namespace hwd
 {
 void stop_server();
+void set_value(int value);
+int get_value();
 }
diff --git a/library/src/library.cpp b/library/src/library.cpp
index 4691849..73f40f9 100644
--- a/library/src/library.cpp
+++ b/library/src/library.cpp
@@ -16,4 +16,14 @@ void stop_server()
 	get_client().call("stop_server");
 }
 
+void set_value(const int value)
+{
+	get_client().call("set_value", value);
+}
+
+int get_value()
+{
+	return get_client().call("get_value").as<int>();
+}
+
 }  // namespace hwd
diff --git a/sample_client/src/client.cpp b/sample_client/src/client.cpp
index 87421ca..c0125c2 100644
--- a/sample_client/src/client.cpp
+++ b/sample_client/src/client.cpp
@@ -1,6 +1,52 @@
+#include <cstdlib>
+#include <iostream>
+#include <stdexcept>
+#include <string_view>
+
 #include <hwd.h>
 
-int main(int, char **)
+int main(int argc, char ** argv)
 {
-	hwd::stop_server();
+	if (2 > argc)
+	{
+		std::cerr << "missing operation" << std::endl;
+		return 1;
+	}
+	std::string_view op {argv[1]};
+	if (0 == op.compare("shutdown"))
+	{
+		hwd::stop_server();
+	}
+	else if (0 == op.compare("set"))
+	{
+		if (3 > argc)
+		{
+			std::cerr << "missing int argument to set" << std::endl;
+			return 1;
+		}
+		std::string input {argv[2]};
+		try
+		{
+			hwd::set_value(std::stoi(input));
+		}
+		catch (const std::invalid_argument &)
+		{
+			std::cerr << "bad argument to set" << std::endl;
+			return 1;
+		}
+		catch (const std::out_of_range &)
+		{
+			std::cerr << "int argument is too large" << std::endl;
+			return 1;
+		}
+	}
+	else if (0 == op.compare("get"))
+	{
+		std::cout << hwd::get_value() << std::endl;
+	}
+	else
+	{
+		std::cerr << "invalid operation" << std::endl;
+		return 1;
+	}
 }
-- 
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