#include <graphene/peerplays_sidechain/ethereum/encoders.hpp>

#include <boost/algorithm/hex.hpp>
#include <boost/format.hpp>

namespace graphene { namespace peerplays_sidechain { namespace ethereum {

//! base_encoder
std::string base_encoder::encode_uint256(boost::multiprecision::uint256_t value)
{
   return (boost::format("%x") % boost::io::group(std::setw(64), std::setfill('0'), value)).str();
}

std::string base_encoder::encode_address(const std::string& value)
{
   return (boost::format("%x") % boost::io::group(std::setw(64), std::setfill('0'), value)).str();
}

std::string base_encoder::encode_string(const std::string& value)
{
   std::string data = (boost::format("%x") % boost::io::group(std::setw(64), std::setfill('0'), value.size())).str();
   data += boost::algorithm::hex(value) + std::string( (64 - value.size() * 2 % 64), '0' );
   return data;
}


//! update_owners_encoder
std::string update_owners_encoder::encode(const std::vector<std::pair<std::string, uint16_t>>& owners_weights, const std::string& object_id) const
{
   std::string data = "0x" + function_signature;
   data += base_encoder::encode_uint256(64);
   data += base_encoder::encode_uint256((owners_weights.size() * 2 + 3) * 32);
   data += base_encoder::encode_uint256(owners_weights.size());
   for(const auto& owner : owners_weights)
   {
      data += base_encoder::encode_address(owner.first);
      data += base_encoder::encode_uint256(owner.second);
   }
   data += base_encoder::encode_string(object_id);

   return data;
}

//! withdrawal_encoder
std::string withdrawal_encoder::encode(const std::string& to, boost::multiprecision::uint256_t amount, const std::string& object_id) const
{
   std::string data = "0x" + function_signature;
   data += base_encoder::encode_address(to);
   data += base_encoder::encode_uint256(amount);
   data += base_encoder::encode_uint256(32*3);
   data += base_encoder::encode_string(object_id);

   return data;
}


}}} // namespace graphene::peerplays_sidechain::ethereum