[SON-307] Create PBTC asset

libraries/chain/account_evaluator.cpp

@@ -110,6 +110,8 @@ void_result account_create_evaluator::do_evaluate( const account_create_operatio
    }
    if( d.head_block_time() < HARDFORK_999_TIME )
       FC_ASSERT( !op.extensions.value.affiliate_distributions.valid(), "Affiliate reward distributions not allowed yet" );
+   if (d.head_block_time() < HARDFORK_SON_TIME)
+      FC_ASSERT(op.name != "son-account", "Son account creation before SON hardfork");
 
    FC_ASSERT( fee_paying_account->is_lifetime_member(), "Only Lifetime members may register an account." );
    FC_ASSERT( op.referrer(d).is_member(d.head_block_time()), "The referrer must be either a lifetime or annual subscriber." );

libraries/chain/asset_evaluator.cpp

@@ -42,6 +42,9 @@ void_result asset_create_evaluator::do_evaluate( const asset_create_operation& o
 
    database& d = db();
 
+   if (d.head_block_time() < HARDFORK_SON_TIME)
+      FC_ASSERT(op.symbol != "BTC", "BTC asset creation before SON hardfork");
+
    const auto& chain_parameters = d.get_global_properties().parameters;
    FC_ASSERT( op.common_options.whitelist_authorities.size() <= chain_parameters.maximum_asset_whitelist_authorities );
    FC_ASSERT( op.common_options.blacklist_authorities.size() <= chain_parameters.maximum_asset_whitelist_authorities );

libraries/chain/db_maint.cpp

@@ -1856,12 +1856,40 @@ void perform_son_tasks(database& db)
          a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
       });
 
-      db.modify( gpo, [&]( global_property_object& gpo ) {
+      db.modify( gpo, [&son_account]( global_property_object& gpo ) {
             gpo.parameters.extensions.value.son_account = son_account.get_id();
             if( gpo.pending_parameters )
                gpo.pending_parameters->extensions.value.son_account = son_account.get_id();
       });
    }
+   // create BTC asset here because son_account is the issuer of the BTC
+   if (gpo.parameters.btc_asset() == asset_id_type()  && db.head_block_time() >= HARDFORK_SON_TIME)
+   {
+      const asset_dynamic_data_object& dyn_asset =
+         db.create<asset_dynamic_data_object>([](asset_dynamic_data_object& a) {
+            a.current_supply = 0;
+         });
+
+      const asset_object& btc_asset =
+         db.create<asset_object>( [&gpo, &dyn_asset]( asset_object& a ) {
+            a.symbol = "BTC";
+            a.options.max_supply = GRAPHENE_MAX_SHARE_SUPPLY;
+            a.precision = 8;
+            a.options.flags = 0;
+            a.options.issuer_permissions = 0;
+            a.issuer = gpo.parameters.son_account();
+            a.options.core_exchange_rate.base.amount = 1;
+            a.options.core_exchange_rate.base.asset_id = asset_id_type(0);
+            a.options.core_exchange_rate.quote.amount = 1;
+            a.options.core_exchange_rate.quote.asset_id = asset_id_type(0);
+            a.dynamic_asset_data_id = dyn_asset.id;
+         });
+      db.modify( gpo, [&btc_asset]( global_property_object& gpo ) {
+            gpo.parameters.extensions.value.btc_asset = btc_asset.get_id();
+            if( gpo.pending_parameters )
+               gpo.pending_parameters->extensions.value.btc_asset = btc_asset.get_id();
+      });
+   }
 }
 
 void database::perform_chain_maintenance(const signed_block& next_block, const global_property_object& global_props)

libraries/chain/include/graphene/chain/protocol/chain_parameters.hpp

@@ -58,6 +58,7 @@ namespace graphene { namespace chain {
       optional < uint32_t >           son_heartbeat_frequency;
       optional < uint32_t >           son_down_time;
       optional < account_id_type >    son_account;
+      optional < asset_id_type >      btc_asset;
    };
 
    struct chain_parameters
@@ -174,6 +175,9 @@ namespace graphene { namespace chain {
       inline account_id_type son_account() const {
          return extensions.value.son_account.valid() ? *extensions.value.son_account : GRAPHENE_NULL_ACCOUNT;
       }
+      inline asset_id_type btc_asset() const {
+         return extensions.value.btc_asset.valid() ? *extensions.value.btc_asset : asset_id_type();
+      }
    };
 
 } }  // graphene::chain
@@ -199,6 +203,7 @@ FC_REFLECT( graphene::chain::parameter_extension,
    (son_heartbeat_frequency)
    (son_down_time)
    (son_account)
+   (btc_asset)
 )
 
 FC_REFLECT( graphene::chain::chain_parameters,

tests/elasticsearch/main.cpp

@@ -231,7 +231,7 @@ BOOST_AUTO_TEST_CASE(elasticsearch_history_api) {
          create_bitasset("USD", account_id_type()); // create op 0
          const account_object& dan = create_account("dan"); // create op 1
          create_bitasset("CNY", dan.id); // create op 2
-         create_bitasset("BTC", account_id_type()); // create op 3
+         create_bitasset("BTCTEST", account_id_type()); // create op 3
          create_bitasset("XMR", dan.id); // create op 4
          create_bitasset("EUR", account_id_type()); // create op 5
          create_bitasset("OIL", dan.id); // create op 6

tests/tests/affiliate_tests.cpp

@@ -289,7 +289,7 @@ BOOST_AUTO_TEST_CASE( affiliate_payout_helper_test )
 {
    ACTORS( (irene) );
 
-   const asset_id_type btc_id = create_user_issued_asset( "BTC", irene, 0 ).id;
+   const asset_id_type btc_id = create_user_issued_asset( "BTCTEST", irene, 0 ).id;
    issue_uia( irene, asset( 100000, btc_id ) );
 
    affiliate_test_helper ath( *this );
@@ -517,7 +517,7 @@ BOOST_AUTO_TEST_CASE( bookie_payout_test )
 { try {
    ACTORS( (irene) );
 
-   const asset_id_type btc_id = create_user_issued_asset( "BTC", irene, 0 ).id;
+   const asset_id_type btc_id = create_user_issued_asset( "BTCTEST", irene, 0 ).id;
 
    affiliate_test_helper ath( *this );
 
@@ -616,7 +616,7 @@ BOOST_AUTO_TEST_CASE( statistics_test )
 
    INVOKE(bookie_payout_test);
 
-   const asset_id_type btc_id = get_asset( "BTC" ).id;
+   const asset_id_type btc_id = get_asset( "BTCTEST" ).id;
 
    transfer( ath.alice_id, ath.ann_id,    asset( 100, btc_id ), asset(0) );
    transfer( ath.alice_id, ath.audrey_id, asset( 100, btc_id ), asset(0) );

tests/tests/history_api_tests.cpp

@@ -120,7 +120,7 @@ BOOST_AUTO_TEST_CASE(get_account_history_additional) {
       const account_object& dan = create_account("dan"); // create op 1
 
       create_bitasset("CNY", dan.id); // create op 2
-      create_bitasset("BTC", account_id_type()); // create op 3
+      create_bitasset("BTCTEST", account_id_type()); // create op 3
       create_bitasset("XMR", dan.id); // create op 4
       create_bitasset("EUR", account_id_type()); // create op 5
       create_bitasset("OIL", dan.id); // create op 6
@@ -454,7 +454,7 @@ BOOST_AUTO_TEST_CASE(track_account) {
       BOOST_CHECK_EQUAL(histories[1].id.instance(), 3u);
 
       // create more ops, starting with an untracked account
-      create_bitasset( "BTC", account_id_type() );
+      create_bitasset( "BTCTEST", account_id_type() );
       create_bitasset( "GBP", dan_id );
 
       generate_block( ~database::skip_fork_db );
@@ -468,7 +468,7 @@ BOOST_AUTO_TEST_CASE(track_account) {
       db.pop_block();
 
       // Try again, should result in same object IDs
-      create_bitasset( "BTC", account_id_type() );
+      create_bitasset( "BTCTEST", account_id_type() );
       create_bitasset( "GBP", dan_id );
 
       generate_block();