# MIT License
#
# Copyright (c) 2018 <NAME>, <EMAIL>
#
# 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 bscetl.domain.contract import EthContract
from bscetl.executors.batch_work_executor import BatchWorkExecutor
from blockchainetl.jobs.base_job import BaseJob
from bscetl.mappers.contract_mapper import EthContractMapper
from bscetl.service.eth_contract_service import EthContractService


# Extract contracts
class ExtractContractsJob(BaseJob):
    def __init__(
            self,
            enriched_transactions_iterable,
            batch_size,
            max_workers,
            item_exporter):
        self.transactions_iterable = enriched_transactions_iterable

        self.batch_work_executor = BatchWorkExecutor(batch_size, max_workers)
        self.item_exporter = item_exporter

        self.contract_service = EthContractService()
        self.contract_mapper = EthContractMapper()

    def _start(self):
        self.item_exporter.open()

    def _export(self):
        self.batch_work_executor.execute(self.transactions_iterable, self._extract_contracts)

    def _extract_contracts(self, transactions):
        contract_creation_transactions = [transaction for transaction in transactions
                                          if transaction.get('to_address') is None
                                          and transaction.get('receipt_contract_address') is not None
                                          and len(transaction.get('receipt_contract_address')) > 0
                                          and transaction.get('receipt_status') == 1]

        contracts = []
        for transaction in contract_creation_transactions:
            contract = EthContract()
            contract.address = transaction.get('receipt_contract_address')
            bytecode = transaction.get('input')
            contract.bytecode = bytecode
            contract.block_number = transaction.get('block_number')

            function_sighashes = self.contract_service.get_function_sighashes(bytecode)

            contract.function_sighashes = function_sighashes
            contract.is_erc20 = self.contract_service.is_erc20_contract(function_sighashes)
            contract.is_erc721 = self.contract_service.is_erc721_contract(function_sighashes)

            contracts.append(contract)

        for contract in contracts:
            self.item_exporter.export_item(self.contract_mapper.contract_to_dict(contract))

    def _end(self):
        self.batch_work_executor.shutdown()
        self.item_exporter.close()

# MIT License
#
# Copyright (c) 2018 <NAME>, <EMAIL>
#
# 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 bscetl.domain.contract import EthContract
from bscetl.executors.batch_work_executor import BatchWorkExecutor
from blockchainetl.jobs.base_job import BaseJob
from bscetl.mappers.contract_mapper import EthContractMapper
from bscetl.service.eth_contract_service import EthContractService


# Extract contracts
class ExtractContractsJob(BaseJob):
    def __init__(
            self,
            enriched_transactions_iterable,
            batch_size,
            max_workers,
            item_exporter):
        self.transactions_iterable = enriched_transactions_iterable

        self.batch_work_executor = BatchWorkExecutor(batch_size, max_workers)
        self.item_exporter = item_exporter

        self.contract_service = EthContractService()
        self.contract_mapper = EthContractMapper()

    def _start(self):
        self.item_exporter.open()

    def _export(self):
        self.batch_work_executor.execute(self.transactions_iterable, self._extract_contracts)

    def _extract_contracts(self, transactions):
        contract_creation_transactions = [transaction for transaction in transactions
                                          if transaction.get('to_address') is None
                                          and transaction.get('receipt_contract_address') is not None
                                          and len(transaction.get('receipt_contract_address')) > 0
                                          and transaction.get('receipt_status') == 1]

        contracts = []
        for transaction in contract_creation_transactions:
            contract = EthContract()
            contract.address = transaction.get('receipt_contract_address')
            bytecode = transaction.get('input')
            contract.bytecode = bytecode
            contract.block_number = transaction.get('block_number')

            function_sighashes = self.contract_service.get_function_sighashes(bytecode)

            contract.function_sighashes = function_sighashes
            contract.is_erc20 = self.contract_service.is_erc20_contract(function_sighashes)
            contract.is_erc721 = self.contract_service.is_erc721_contract(function_sighashes)

            contracts.append(contract)

        for contract in contracts:
            self.item_exporter.export_item(self.contract_mapper.contract_to_dict(contract))

    def _end(self):
        self.batch_work_executor.shutdown()
        self.item_exporter.close()

# MIT License # # Copyright (c) 2018 <NAME>, <EMAIL> # # 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. # Extract contracts