From 381b6505b5afaacc9194168697f6bc93c43d2775 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Wed, 6 Jan 2021 21:52:53 +0100
Subject: Access services via Server object

---
 include/erebos/message.h | 10 +++++++---
 include/erebos/network.h | 11 +++++++++++
 src/message.cpp          | 12 ++++++------
 src/message.h            |  4 ++--
 src/network.cpp          | 10 ++++++++++
 5 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/include/erebos/message.h b/include/erebos/message.h
index c94e8c3..66d221c 100644
--- a/include/erebos/message.h
+++ b/include/erebos/message.h
@@ -4,11 +4,14 @@
 
 #include <chrono>
 #include <functional>
+#include <memory>
 #include <optional>
 #include <string>
 
 namespace erebos {
 
+using std::unique_ptr;
+
 class Identity;
 
 class DirectMessage
@@ -78,13 +81,14 @@ public:
 	void handle(Context &) const override;
 
 	typedef std::function<void(const DirectMessageThread &, ssize_t, ssize_t)> ThreadWatcher;
-	static void onUpdate(ThreadWatcher);
-	static DirectMessageThread thread(const Identity &);
+	void onUpdate(ThreadWatcher);
+	DirectMessageThread thread(const Identity &);
 
-	static DirectMessage send(const Identity &, const Peer &, const std::string &);
+	DirectMessage send(const Identity &, const Peer &, const std::string &);
 
 private:
 	struct Priv;
+	unique_ptr<Priv> p;
 };
 
 }
diff --git a/include/erebos/network.h b/include/erebos/network.h
index d730fb5..a2f989e 100644
--- a/include/erebos/network.h
+++ b/include/erebos/network.h
@@ -4,6 +4,7 @@
 #include <erebos/service.h>
 
 #include <functional>
+#include <typeinfo>
 
 namespace erebos {
 
@@ -13,14 +14,24 @@ public:
 	Server(const Identity &, std::vector<std::unique_ptr<Service>> &&);
 	~Server();
 
+	template<class S> S & svc();
+
 	class PeerList & peerList() const;
 
 	struct Peer;
 private:
+	Service & svcHelper(const std::type_info &);
+
 	struct Priv;
 	const std::shared_ptr<Priv> p;
 };
 
+template<class S>
+S & Server::svc()
+{
+	return dynamic_cast<S&>(svcHelper(typeid(S)));
+}
+
 class Peer
 {
 public:
diff --git a/src/message.cpp b/src/message.cpp
index 354703e..601bc39 100644
--- a/src/message.cpp
+++ b/src/message.cpp
@@ -202,10 +202,10 @@ const Identity & DirectMessageThread::peer() const
 }
 
 
-vector<DirectMessageService::ThreadWatcher> DirectMessageService::Priv::watchers;
-mutex DirectMessageService::Priv::watcherLock;
+DirectMessageService::DirectMessageService():
+	p(new Priv)
+{}
 
-DirectMessageService::DirectMessageService() = default;
 DirectMessageService::~DirectMessageService() = default;
 
 UUID DirectMessageService::uuid() const
@@ -229,14 +229,14 @@ void DirectMessageService::handle(Context & ctx) const
 
 	lock.unlock();
 
-	for (const auto & w : Priv::watchers)
+	for (const auto & w : p->watchers)
 		w(dmt, -1, -1);
 }
 
 void DirectMessageService::onUpdate(ThreadWatcher w)
 {
-	scoped_lock l(Priv::watcherLock);
-	Priv::watchers.push_back(w);
+	scoped_lock l(p->watcherLock);
+	p->watchers.push_back(w);
 }
 
 DirectMessageThread DirectMessageService::thread(const Identity & peer)
diff --git a/src/message.h b/src/message.h
index c4a3549..efdec8f 100644
--- a/src/message.h
+++ b/src/message.h
@@ -51,8 +51,8 @@ struct DirectMessageThread::Iterator::Priv
 
 struct DirectMessageService::Priv
 {
-	static vector<ThreadWatcher> watchers;
-	static mutex watcherLock;
+	vector<ThreadWatcher> watchers;
+	mutex watcherLock;
 };
 
 }
diff --git a/src/network.cpp b/src/network.cpp
index 91f1923..4b79dcb 100644
--- a/src/network.cpp
+++ b/src/network.cpp
@@ -6,6 +6,7 @@
 #include <algorithm>
 #include <cstring>
 #include <iostream>
+#include <stdexcept>
 
 #include <arpa/inet.h>
 #include <ifaddrs.h>
@@ -13,6 +14,7 @@
 #include <unistd.h>
 
 using std::holds_alternative;
+using std::runtime_error;
 using std::scoped_lock;
 using std::to_string;
 using std::unique_lock;
@@ -26,6 +28,14 @@ Server::Server(const Identity & self, vector<unique_ptr<Service>> && svcs):
 
 Server::~Server() = default;
 
+Service & Server::svcHelper(const std::type_info & tinfo)
+{
+	for (auto & s : p->services)
+		if (typeid(*s) == tinfo)
+			return *s;
+	throw runtime_error("service not found");
+}
+
 PeerList & Server::peerList() const
 {
 	return p->plist;
-- 
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