From b8867e13788a54f8eba5df7758c8a141eee6ace7 Mon Sep 17 00:00:00 2001
From: Reinder Feenstra <reinderfeenstra@gmail.com>
Date: Mon, 3 Jan 2022 00:05:29 +0100
Subject: [PATCH] world loader: added loading of legacy command stations and
 controllers

---
 server/src/utils/endswith.hpp    | 33 +++++++++++++++++++
 server/src/utils/stripsuffix.hpp | 37 +++++++++++++++++++++
 server/src/world/worldloader.cpp | 56 ++++++++++++++++++++++++++++++++
 3 files changed, 126 insertions(+)
 create mode 100644 server/src/utils/endswith.hpp
 create mode 100644 server/src/utils/stripsuffix.hpp

diff --git a/server/src/utils/endswith.hpp b/server/src/utils/endswith.hpp
new file mode 100644
index 00000000..fdd57072
--- /dev/null
+++ b/server/src/utils/endswith.hpp
@@ -0,0 +1,33 @@
+/**
+ * server/src/utils/endswith.hpp
+ *
+ * This file is part of the traintastic source code.
+ *
+ * Copyright (C) 2022 Reinder Feenstra
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef TRAINTASTIC_SERVER_UTILS_ENDSWITH_HPP
+#define TRAINTASTIC_SERVER_UTILS_ENDSWITH_HPP
+
+#include <string_view>
+
+constexpr bool endsWith(std::string_view sv, std::string_view suffix)
+{
+  return sv.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), sv.rbegin());
+}
+
+#endif
diff --git a/server/src/utils/stripsuffix.hpp b/server/src/utils/stripsuffix.hpp
new file mode 100644
index 00000000..c3bd607d
--- /dev/null
+++ b/server/src/utils/stripsuffix.hpp
@@ -0,0 +1,37 @@
+/**
+ * server/src/utils/stripsuffix.hpp
+ *
+ * This file is part of the traintastic source code.
+ *
+ * Copyright (C) 2022 Reinder Feenstra
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef TRAINTASTIC_SERVER_UTILS_STRIPSUFFIX_HPP
+#define TRAINTASTIC_SERVER_UTILS_STRIPSUFFIX_HPP
+
+#include <string_view>
+#include <algorithm>
+#include "endswith.hpp"
+
+constexpr std::string_view stripSuffix(std::string_view sv, std::string_view suffix)
+{
+  if(endsWith(sv, suffix))
+    sv.remove_suffix(suffix.size());
+  return sv;
+}
+
+#endif
diff --git a/server/src/world/worldloader.cpp b/server/src/world/worldloader.cpp
index 895186d5..51e594ba 100644
--- a/server/src/world/worldloader.cpp
+++ b/server/src/world/worldloader.cpp
@@ -27,6 +27,7 @@
 #include <boost/uuid/uuid_io.hpp>
 #include "world.hpp"
 #include "../utils/startswith.hpp"
+#include "../utils/stripsuffix.hpp"
 #include "ctwreader.hpp"
 
 #include "../board/board.hpp"
@@ -199,6 +200,61 @@ void WorldLoader::createObject(ObjectData& objectData)
   else if(classId == Lua::Script::classId)
     objectData.object = Lua::Script::create(m_world, id);
 #endif
+  // backwards compatibility < 0.1
+  else if(classId == "command_station.dccplusplus_serial")
+  {
+    objectData.object = DCCPlusPlusInterface::create(m_world, id);
+    objectData.json["device"] = objectData.json["port"];
+    objectData.json.erase("port");
+  }
+  else if(classId == "command_station.loconet_serial")
+  {
+    auto object = LocoNetInterface::create(m_world, id);
+    object->type = LocoNetInterfaceType::Serial;
+    objectData.object = object;
+    objectData.json["device"] = objectData.json["port"];
+    objectData.json.erase("port");
+  }
+  else if(classId == "command_station.loconet_tcp_binary")
+  {
+    auto object = LocoNetInterface::create(m_world, id);
+    object->type = LocoNetInterfaceType::TCPBinary;
+    objectData.object = object;
+  }
+  else if(classId == "command_station.xpressnet_serial")
+  {
+    auto object = XpressNetInterface::create(m_world, id);
+    object->type = XpressNetInterfaceType::Serial;
+    objectData.object = object;
+    objectData.json["device"] = objectData.json["port"];
+    objectData.json.erase("port");
+  }
+  else if(classId == "command_station.z21")
+  {
+    objectData.object = Z21Interface::create(m_world, id);
+  }
+  else if(classId == "controller.wlanmaus")
+  {
+    objectData.object = WlanMausInterface::create(m_world, id);
+  }
+  else if(classId == "input.loconet")
+  {
+    objectData.object = Input::create(m_world, id);
+    objectData.json["interface"] = stripSuffix(objectData.json["loconet"], ".loconet");
+    objectData.json.erase("loconet");
+  }
+  else if(classId == "output.loconet")
+  {
+    objectData.object = Output::create(m_world, id);
+    objectData.json["interface"] = stripSuffix(objectData.json["loconet"], ".loconet");
+    objectData.json.erase("loconet");
+  }
+  else if(classId == "input.xpressnet")
+  {
+    objectData.object = Input::create(m_world, id);
+    objectData.json["interface"] = stripSuffix(objectData.json["xpressnet"], ".xpressnet");
+    objectData.json.erase("xpressnet");
+  }
   else
     assert(false);