text: # MIT License
  #
  # Copyright (c) 2018 Evgeny Medvedev, evge.medvedev@gmail.com
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  
  from ethereumetl.domain.block import EthBlock
  from ethereumetl.mappers.transaction_mapper import EthTransactionMapper
  from ethereumetl.utils import hex_to_dec, to_normalized_address
  
  
  class EthBlockMapper(object):
      def __init__(self, transaction_mapper=None):
          if transaction_mapper is None:
              self.transaction_mapper = EthTransactionMapper()
          else:
              self.transaction_mapper = transaction_mapper
  
      def json_dict_to_block(self, json_dict):
          block = EthBlock()
          block.number = hex_to_dec(json_dict.get('number'))
          block.hash = json_dict.get('hash')
          block.parent_hash = json_dict.get('parentHash')
          block.nonce = json_dict.get('nonce')
          block.sha3_uncles = json_dict.get('sha3Uncles')
          block.logs_bloom = json_dict.get('logsBloom')
          block.transactions_root = json_dict.get('transactionsRoot')
          block.state_root = json_dict.get('stateRoot')
          block.receipts_root = json_dict.get('receiptsRoot')
          block.miner = to_normalized_address(json_dict.get('miner'))
          block.difficulty = hex_to_dec(json_dict.get('difficulty'))
          block.total_difficulty = hex_to_dec(json_dict.get('totalDifficulty'))
          block.size = hex_to_dec(json_dict.get('size'))
          block.extra_data = json_dict.get('extraData')
          block.gas_limit = hex_to_dec(json_dict.get('gasLimit'))
          block.gas_used = hex_to_dec(json_dict.get('gasUsed'))
          block.timestamp = hex_to_dec(json_dict.get('timestamp'))
          block.base_fee_per_gas = hex_to_dec(json_dict.get('baseFeePerGas'))
  
          if 'transactions' in json_dict:
              block.transactions = [
                  self.transaction_mapper.json_dict_to_transaction(tx, block_timestamp=block.timestamp)
                  for tx in json_dict['transactions']
                  if isinstance(tx, dict)
              ]
  
              block.transaction_count = len(json_dict['transactions'])
  
          return block
  
      def block_to_dict(self, block):
          return {
              'type': 'block',
              'number': block.number,
              'hash': block.hash,
              'parent_hash': block.parent_hash,
              'nonce': block.nonce,
              'sha3_uncles': block.sha3_uncles,
              'logs_bloom': block.logs_bloom,
              'transactions_root': block.transactions_root,
              'state_root': block.state_root,
              'receipts_root': block.receipts_root,
              'miner': block.miner,
              'difficulty': block.difficulty,
              'total_difficulty': block.total_difficulty,
              'size': block.size,
              'extra_data': block.extra_data,
              'gas_limit': block.gas_limit,
              'gas_used': block.gas_used,
              'timestamp': block.timestamp,
              'transaction_count': block.transaction_count,
              'base_fee_per_gas': block.base_fee_per_gas
          }
  