From 224eedee394f2c7300c4cc405a3b8ac943bbf87e Mon Sep 17 00:00:00 2001
From: Vlad Dobromyslov <vdobrik@peerplays.com>
Date: Thu, 24 Feb 2022 09:39:51 +0300
Subject: [PATCH] #235 Add custom funtions for match_object

---
 .../include/graphene/chain/match_object.hpp   | 137 ++++++++++++++++--
 libraries/chain/match_object.cpp              |  55 +++++++
 2 files changed, 180 insertions(+), 12 deletions(-)

diff --git a/libraries/chain/include/graphene/chain/match_object.hpp b/libraries/chain/include/graphene/chain/match_object.hpp
index 2f5152cc..e1194e1e 100644
--- a/libraries/chain/include/graphene/chain/match_object.hpp
+++ b/libraries/chain/include/graphene/chain/match_object.hpp
@@ -1,6 +1,18 @@
 #pragma once
 #include <graphene/db/object.hpp>
 #include <graphene/db/generic_index.hpp>
+#include <fc/crypto/hex.hpp>
+#include <sstream>
+
+namespace graphene { namespace chain {
+class match_object;
+} }
+
+namespace fc {
+void to_variant(const graphene::chain::match_object& match_obj, fc::variant& v, uint32_t max_depth = 1);
+void from_variant(const fc::variant& v, graphene::chain::match_object& match_obj, uint32_t max_depth = 1);
+} //end namespace fc
+
 
 namespace graphene { namespace chain {
    class database;
@@ -61,6 +73,21 @@ namespace graphene { namespace chain {
       
       match_state get_state() const;
 
+      // serialization functions:
+      // for serializing to raw, go through a temporary sstream object to avoid
+      // having to implement serialization in the header file
+      template<typename Stream>
+      friend Stream& operator<<( Stream& s, const match_object& match_obj );
+
+      template<typename Stream>
+      friend Stream& operator>>( Stream& s, match_object& match_obj );
+
+      friend void ::fc::to_variant(const graphene::chain::match_object& match_obj, fc::variant& v, uint32_t max_depth);
+      friend void ::fc::from_variant(const fc::variant& v, graphene::chain::match_object& match_obj, uint32_t max_depth);
+
+      void pack_impl(std::ostream& stream) const;
+      void unpack_impl(std::istream& stream);
+
       void on_initiate_match(database& db);
       void on_game_complete(database& db, const game_object& game);
       game_id_type start_next_game(database& db, match_id_type match_id);
@@ -76,6 +103,56 @@ namespace graphene { namespace chain {
    > match_object_multi_index_type;
    typedef generic_index<match_object, match_object_multi_index_type> match_index;
 
+   template<typename Stream>
+   inline Stream& operator<<( Stream& s, const match_object& match_obj )
+   {
+      // pack all fields exposed in the header in the usual way
+      // instead of calling the derived pack, just serialize the one field in the base class
+      //   fc::raw::pack<Stream, const graphene::db::abstract_object<match_object> >(s, match_obj);
+      fc::raw::pack(s, match_obj.id);
+      fc::raw::pack(s, match_obj.tournament_id);
+      fc::raw::pack(s, match_obj.players);
+      fc::raw::pack(s, match_obj.games);
+      fc::raw::pack(s, match_obj.game_winners);
+      fc::raw::pack(s, match_obj.number_of_wins);
+      fc::raw::pack(s, match_obj.number_of_ties);
+      fc::raw::pack(s, match_obj.match_winners);
+      fc::raw::pack(s, match_obj.start_time);
+      fc::raw::pack(s, match_obj.end_time);
+
+      // fc::raw::pack the contents hidden in the impl class
+      std::ostringstream stream;
+      match_obj.pack_impl(stream);
+      std::string stringified_stream(stream.str());
+      fc::raw::pack(s, stream.str());
+
+      return s;
+   }
+
+   template<typename Stream>
+   inline Stream& operator>>( Stream& s, match_object& match_obj )
+   {
+      // unpack all fields exposed in the header in the usual way
+      //fc::raw::unpack<Stream, graphene::db::abstract_object<match_object> >(s, match_obj);
+      fc::raw::unpack(s, match_obj.id);
+      fc::raw::unpack(s, match_obj.tournament_id);
+      fc::raw::unpack(s, match_obj.players);
+      fc::raw::unpack(s, match_obj.games);
+      fc::raw::unpack(s, match_obj.game_winners);
+      fc::raw::unpack(s, match_obj.number_of_wins);
+      fc::raw::unpack(s, match_obj.number_of_ties);
+      fc::raw::unpack(s, match_obj.match_winners);
+      fc::raw::unpack(s, match_obj.start_time);
+      fc::raw::unpack(s, match_obj.end_time);
+
+      // fc::raw::unpack the contents hidden in the impl class
+      std::string stringified_stream;
+      fc::raw::unpack(s, stringified_stream);
+      std::istringstream stream(stringified_stream);
+      match_obj.unpack_impl(stream);
+
+      return s;
+   }
 } }
 
 FC_REFLECT_ENUM(graphene::chain::match_state,
@@ -83,16 +160,52 @@ FC_REFLECT_ENUM(graphene::chain::match_state,
                 (match_in_progress)
                 (match_complete))
 
-//FC_REFLECT_TYPENAME(graphene::chain::match_object) // manually serialized
-FC_REFLECT_DERIVED(graphene::chain::match_object, (graphene::db::object),
-                   (tournament_id)
-                   (players)
-                   (games)
-                   (game_winners)
-                   (number_of_wins)
-                   (number_of_ties)
-                   (match_winners)
-                   (start_time)
-                   (end_time))
+namespace fc {
 
-GRAPHENE_EXTERNAL_SERIALIZATION( extern, graphene::chain::match_object )
\ No newline at end of file
+template<>
+template<>
+inline void if_enum<fc::false_type>::from_variant(const variant &vo, graphene::chain::match_object &v, uint32_t max_depth) {
+   from_variant(vo, v, max_depth);
+}
+
+template<>
+template<>
+inline void if_enum<fc::false_type>::to_variant(const graphene::chain::match_object &v, variant &vo, uint32_t max_depth) {
+   to_variant(v, vo, max_depth);
+}
+
+namespace raw { namespace detail {
+
+template<>
+template<>
+inline void if_enum<fc::false_type>::pack(fc::datastream<size_t> &s, const graphene::chain::match_object &v, uint32_t) {
+   s << v;
+}
+
+template<>
+template<>
+inline void if_enum<fc::false_type>::pack(fc::datastream<char*> &s, const graphene::chain::match_object &v, uint32_t) {
+   s << v;
+}
+
+template<>
+template<>
+inline void if_enum<fc::false_type>::unpack(fc::datastream<const char*> &s, graphene::chain::match_object &v, uint32_t) {
+   s >> v;
+}
+
+} }
+
+template <>
+struct get_typename<graphene::chain::match_object> {
+   static const char *name() {
+      return "graphene::chain::match_object";
+   }
+};
+template <>
+struct reflector<graphene::chain::match_object> {
+   typedef graphene::chain::match_object type;
+   typedef fc::true_type is_defined;
+   typedef fc::false_type is_enum;
+};
+} // namespace fc
\ No newline at end of file
diff --git a/libraries/chain/match_object.cpp b/libraries/chain/match_object.cpp
index c0b75755..46313bff 100644
--- a/libraries/chain/match_object.cpp
+++ b/libraries/chain/match_object.cpp
@@ -28,6 +28,8 @@
 
 #include <boost/msm/back/state_machine.hpp>
 #include <boost/msm/front/state_machine_def.hpp>
+#include <boost/archive/binary_oarchive.hpp>
+#include <boost/archive/binary_iarchive.hpp>
 #include <boost/msm/back/tools.hpp>
 #include <boost/range/algorithm/copy.hpp>
 
@@ -325,6 +327,18 @@ namespace graphene { namespace chain {
       return state;  
    }
 
+   void match_object::pack_impl(std::ostream& stream) const
+   {
+      boost::archive::binary_oarchive oa(stream, boost::archive::no_header|boost::archive::no_codecvt|boost::archive::no_xml_tag_checking);
+      oa << my->state_machine;
+   }
+
+   void match_object::unpack_impl(std::istream& stream)
+   {
+      boost::archive::binary_iarchive ia(stream, boost::archive::no_header|boost::archive::no_codecvt|boost::archive::no_xml_tag_checking);
+      ia >> my->state_machine;
+   }
+
    void match_object::on_initiate_match(database& db)
    {
       my->state_machine.process_event(initiate_match(db));
@@ -348,4 +362,45 @@ namespace graphene { namespace chain {
 
 } } // graphene::chain
 
+namespace fc {
+// Manually reflect match_object to variant to properly reflect "state"
+void to_variant(const graphene::chain::match_object& match_obj, fc::variant& v, uint32_t max_depth)
+{ try {
+      fc_elog(fc::logger::get("tournament"), "In match_obj to_variant");
+      elog("In match_obj to_variant");
+      fc::mutable_variant_object o;
+      o("id", fc::variant(match_obj.id, max_depth))
+      ("tournament_id", fc::variant(match_obj.tournament_id, max_depth))
+      ("players", fc::variant(match_obj.players, max_depth))
+      ("games", fc::variant(match_obj.games, max_depth))
+      ("game_winners", fc::variant(match_obj.game_winners, max_depth))
+      ("number_of_wins", fc::variant(match_obj.number_of_wins, max_depth))
+      ("number_of_ties", fc::variant(match_obj.number_of_ties, max_depth))
+      ("match_winners", fc::variant(match_obj.match_winners, max_depth))
+      ("start_time", fc::variant(match_obj.start_time, max_depth))
+      ("end_time", fc::variant(match_obj.end_time, max_depth))
+      ("state", fc::variant(match_obj.get_state(), max_depth));
+
+      v = o;
+   } FC_RETHROW_EXCEPTIONS(warn, "") }
+
+// Manually reflect match_object to variant to properly reflect "state"
+void from_variant(const fc::variant& v, graphene::chain::match_object& match_obj, uint32_t max_depth)
+{ try {
+      fc_elog(fc::logger::get("tournament"), "In match_obj from_variant");
+      match_obj.id = v["id"].as<graphene::chain::match_id_type>( max_depth );
+      match_obj.tournament_id = v["tournament_id"].as<graphene::chain::tournament_id_type>( max_depth );
+      match_obj.players = v["players"].as<std::vector<graphene::chain::account_id_type> >( max_depth );
+      match_obj.games = v["games"].as<std::vector<graphene::chain::game_id_type> >( max_depth );
+      match_obj.game_winners = v["game_winners"].as<std::vector<flat_set<graphene::chain::account_id_type> > >( max_depth );
+      match_obj.number_of_wins = v["number_of_wins"].as<std::vector<uint32_t> >( max_depth );
+      match_obj.number_of_ties = v["number_of_ties"].as<uint32_t>( max_depth );
+      match_obj.match_winners = v["match_winners"].as<flat_set<graphene::chain::account_id_type> >( max_depth );
+      match_obj.start_time = v["start_time"].as<time_point_sec>( max_depth );
+      match_obj.end_time = v["end_time"].as<optional<time_point_sec> >( max_depth );
+      graphene::chain::match_state state = v["state"].as<graphene::chain::match_state>( max_depth );
+      const_cast<int*>(match_obj.my->state_machine.current_state())[0] = (int)state;
+   } FC_RETHROW_EXCEPTIONS(warn, "") }
+} //end namespace fc
+