transaction_builder& transaction_builder::cancel_market_order( const order_id_type& order_id )
{ try {
const auto order = _wimpl->_blockchain->get_market_order( order_id );
if( !order.valid() )
FC_THROW_EXCEPTION( unknown_market_order, "Cannot find that market order!" );
const auto owner_address = order->get_owner();
const auto owner_key_record = _wimpl->_wallet_db.lookup_key( owner_address );
if( !owner_key_record.valid() || !owner_key_record->has_private_key() )
FC_THROW_EXCEPTION( private_key_not_found, "Cannot find the private key for that market order!" );
const auto account_record = _wimpl->_wallet_db.lookup_account( owner_key_record->account_address );
FC_ASSERT( account_record.valid() );
asset balance = order->get_balance();
if( balance.amount == 0 ) FC_CAPTURE_AND_THROW( zero_amount, (order) );
switch( order_type_enum( order->type ) )
{
case ask_order:
trx.ask( -balance, order->market_index.order_price, owner_address );
break;
case bid_order:
trx.bid( -balance, order->market_index.order_price, owner_address );
break;
case short_order:
trx.short_sell( -balance, order->market_index.order_price, owner_address );
break;
default:
FC_THROW_EXCEPTION( invalid_cancel, "You cannot cancel this type of order!" );
break;
}
//Credit this account the cancel proceeds
credit_balance(account_record->owner_address(), balance);
//Set order key for this account if not already set
if( order_keys.find(account_record->owner_address()) == order_keys.end() )
{
const oasset_record asset_record = _wimpl->_blockchain->get_asset_record( balance.asset_id );
FC_ASSERT( asset_record.valid() );
if( asset_record->flag_is_active( asset_record::restricted_accounts ) )
order_keys[ account_record->owner_address() ] = account_record->active_key();
else
order_keys[ account_record->owner_address() ] = owner_key_record->public_key;
}
auto entry = ledger_entry();
entry.from_account = owner_key_record->public_key;
entry.to_account = account_record->owner_key;
entry.amount = balance;
entry.memo = "cancel " + order->get_small_id();
transaction_record.is_market = true;
transaction_record.ledger_entries.push_back( entry );
required_signatures.insert( owner_address );
return *this;
}
FC_CAPTURE_AND_RETHROW( (order_id) )
}
transaction_builder& transaction_builder::update_asset( const string& symbol,
const optional<string>& name,
const optional<string>& description,
const optional<variant>& public_data,
const optional<double>& maximum_share_supply,
const optional<uint64_t>& precision )
{ try {
const oasset_record asset_record = _wimpl->_blockchain->get_asset_record( symbol );
FC_ASSERT( asset_record.valid() );
const oaccount_record issuer_account_record = _wimpl->_blockchain->get_account_record( asset_record->issuer_account_id );
if( !issuer_account_record.valid() )
FC_THROW_EXCEPTION( unknown_account, "Unknown issuer account id!" );
trx.update_asset( asset_record->id, name, description, public_data, maximum_share_supply, precision );
deduct_balance( issuer_account_record->active_key(), asset() );
ledger_entry entry;
entry.from_account = issuer_account_record->active_key();
entry.to_account = issuer_account_record->active_key();
entry.memo = "update " + symbol + " asset";
transaction_record.ledger_entries.push_back( entry );
required_signatures.insert( issuer_account_record->active_key() );
return *this;
} FC_CAPTURE_AND_RETHROW( (symbol)(name)(description)(public_data)(maximum_share_supply)(precision) ) }
transaction_builder& transaction_builder::submit_bid(const wallet_account_record& from_account,
const asset& real_quantity,
const price& quote_price)
{ try {
validate_market(quote_price.quote_asset_id, quote_price.base_asset_id);
asset cost;
if( real_quantity.asset_id == quote_price.quote_asset_id )
cost = real_quantity;
else
{
cost = real_quantity * quote_price;
FC_ASSERT(cost.asset_id == quote_price.quote_asset_id);
}
const oasset_record base_asset_record = _wimpl->_blockchain->get_asset_record( quote_price.base_asset_id );
FC_ASSERT( base_asset_record.valid() );
public_key_type order_key;
if( base_asset_record->flag_is_active( asset_record::restricted_accounts ) )
order_key = from_account.active_key();
else
order_key = order_key_for_account( from_account.owner_address(), from_account.name );
order_keys[ from_account.owner_address() ] = order_key;
//Charge this account for the bid
deduct_balance(from_account.owner_address(), cost);
trx.bid(cost, quote_price, order_key);
if( trx.expiration == time_point_sec() )
trx.expiration = blockchain::now() + WALLET_DEFAULT_MARKET_TRANSACTION_EXPIRATION_SEC;
auto entry = ledger_entry();
entry.from_account = from_account.owner_key;
entry.to_account = order_key;
entry.amount = cost;
entry.memo = "buy " + _wimpl->_blockchain->get_asset_symbol(quote_price.base_asset_id) +
" @ " + _wimpl->_blockchain->to_pretty_price(quote_price);
transaction_record.is_market = true;
transaction_record.ledger_entries.push_back(entry);
required_signatures.insert(order_key);
return *this;
}
FC_CAPTURE_AND_RETHROW( (from_account.name)(real_quantity)(quote_price) )
}
void deposit_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
if( this->amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
switch( withdraw_condition_types( this->condition.type ) )
{
case withdraw_signature_type:
case withdraw_multisig_type:
case withdraw_escrow_type:
break;
default:
FC_CAPTURE_AND_THROW( invalid_withdraw_condition, (*this) );
}
const balance_id_type deposit_balance_id = this->balance_id();
obalance_record cur_record = eval_state.pending_state()->get_balance_record( deposit_balance_id );
if( !cur_record.valid() )
{
cur_record = balance_record( this->condition );
if( this->condition.type == withdraw_escrow_type )
cur_record->meta_data = variant_object("creating_transaction_id", eval_state.trx.id() );
}
if( cur_record->balance == 0 )
{
cur_record->deposit_date = eval_state.pending_state()->now();
}
else
{
fc::uint128 old_sec_since_epoch( cur_record->deposit_date.sec_since_epoch() );
fc::uint128 new_sec_since_epoch( eval_state.pending_state()->now().sec_since_epoch() );
fc::uint128 avg = (old_sec_since_epoch * cur_record->balance) + (new_sec_since_epoch * this->amount);
avg /= (cur_record->balance + this->amount);
cur_record->deposit_date = time_point_sec( avg.to_integer() );
}
cur_record->balance += this->amount;
eval_state.sub_balance( asset( this->amount, cur_record->asset_id() ) );
if( cur_record->condition.asset_id == 0 && cur_record->condition.slate_id )
eval_state.adjust_vote( cur_record->condition.slate_id, this->amount );
cur_record->last_update = eval_state.pending_state()->now();
const oasset_record asset_rec = eval_state.pending_state()->get_asset_record( cur_record->condition.asset_id );
FC_ASSERT( asset_rec.valid() );
if( asset_rec->is_market_issued() )
{
FC_ASSERT( cur_record->condition.slate_id == 0 );
}
const auto& owners = cur_record->owners();
for( const address& owner : owners )
{
FC_ASSERT( asset_rec->address_is_whitelisted( owner ) );
}
eval_state.pending_state()->store_balance_record( *cur_record );
} FC_CAPTURE_AND_RETHROW( (*this) ) }