218 lines
7.4 KiB
Python
218 lines
7.4 KiB
Python
# standard imports
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import json
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import logging
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from datetime import timedelta
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# third-party imports
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import celery
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from chainlib.hash import strip_0x
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# local imports
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from cic_ussd.account.balance import get_balances, calculate_available_balance
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from cic_ussd.account.statement import generate
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from cic_ussd.cache import Cache, cache_data, cache_data_key, get_cached_data
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from cic_ussd.account.chain import Chain
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from cic_ussd.db.models.base import SessionBase
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from cic_ussd.db.models.account import Account
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from cic_ussd.account.statement import filter_statement_transactions
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from cic_ussd.account.transaction import transaction_actors
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from cic_ussd.error import AccountCreationDataNotFound
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from cic_ussd.tasks.base import CriticalSQLAlchemyTask
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logg = logging.getLogger(__file__)
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celery_app = celery.current_app
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@celery_app.task(bind=True, base=CriticalSQLAlchemyTask)
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def account_creation_callback(self, result: str, url: str, status_code: int):
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"""This function defines a task that creates a user and
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:param self: Reference providing access to the callback task instance.
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:type self: celery.Task
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:param result: The blockchain address for the created account
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:type result: str
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:param url: URL provided to callback task in cic-eth should http be used for callback.
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:type url: str
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:param status_code: The status of the task to create an account
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:type status_code: int
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"""
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task_uuid = self.request.root_id
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cached_account_creation_data = get_cached_data(task_uuid)
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if not cached_account_creation_data:
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raise AccountCreationDataNotFound(f'No account creation data found for task id: {task_uuid}')
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if status_code != 0:
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raise ValueError(f'Unexpected status code: {status_code}')
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account_creation_data = json.loads(cached_account_creation_data)
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account_creation_data['status'] = 'CREATED'
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cache_data(task_uuid, json.dumps(account_creation_data))
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phone_number = account_creation_data.get('phone_number')
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session = SessionBase.create_session()
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account = Account(blockchain_address=result, phone_number=phone_number)
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session.add(account)
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session.commit()
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session.close()
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queue = self.request.delivery_info.get('routing_key')
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s_phone_pointer = celery.signature(
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'cic_ussd.tasks.metadata.add_phone_pointer', [result, phone_number], queue=queue
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)
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s_phone_pointer.apply_async()
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custom_metadata = {"tags": ["ussd", "individual"]}
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s_custom_metadata = celery.signature(
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'cic_ussd.tasks.metadata.add_custom_metadata', [result, custom_metadata], queue=queue
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)
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s_custom_metadata.apply_async()
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Cache.store.expire(task_uuid, timedelta(seconds=180))
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@celery_app.task
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def balances_callback(result: list, param: str, status_code: int):
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"""
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:param result:
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:type result:
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:param param:
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:type param:
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:param status_code:
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:type status_code:
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:return:
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:rtype:
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"""
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if status_code != 0:
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raise ValueError(f'Unexpected status code: {status_code}.')
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balances = result[0]
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identifier = bytes.fromhex(strip_0x(param))
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key = cache_data_key(identifier, ':cic.balances')
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cache_data(key, json.dumps(balances))
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@celery_app.task(bind=True)
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def statement_callback(self, result, param: str, status_code: int):
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"""
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:param self:
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:type self:
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:param result:
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:type result:
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:param param:
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:type param:
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:param status_code:
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:type status_code:
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:return:
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:rtype:
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"""
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if status_code != 0:
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raise ValueError(f'Unexpected status code: {status_code}.')
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queue = self.request.delivery_info.get('routing_key')
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statement_transactions = filter_statement_transactions(result)
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for transaction in statement_transactions:
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recipient_transaction, sender_transaction = transaction_actors(transaction)
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if recipient_transaction.get('blockchain_address') == param:
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generate(param, queue, recipient_transaction)
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if sender_transaction.get('blockchain_address') == param:
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generate(param, queue, sender_transaction)
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@celery_app.task(bind=True)
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def transaction_balances_callback(self, result: list, param: dict, status_code: int):
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"""
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:param self:
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:type self:
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:param result:
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:type result:
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:param param:
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:type param:
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:param status_code:
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:type status_code:
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:return:
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:rtype:
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"""
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if status_code != 0:
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raise ValueError(f'Unexpected status code: {status_code}.')
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balances_data = result[0]
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available_balance = calculate_available_balance(balances_data)
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transaction = param
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blockchain_address = param.get('blockchain_address')
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transaction['available_balance'] = available_balance
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queue = self.request.delivery_info.get('routing_key')
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s_preferences_metadata = celery.signature(
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'cic_ussd.tasks.metadata.query_preferences_metadata', [blockchain_address], queue=queue
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)
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s_process_account_metadata = celery.signature(
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'cic_ussd.tasks.processor.parse_transaction', [transaction], queue=queue
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)
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s_notify_account = celery.signature('cic_ussd.tasks.notifications.transaction', queue=queue)
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if param.get('transaction_type') == 'transfer':
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celery.chain(s_preferences_metadata, s_process_account_metadata, s_notify_account).apply_async()
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if param.get('transaction_type') == 'tokengift':
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s_process_account_metadata = celery.signature(
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'cic_ussd.tasks.processor.parse_transaction', [{}, transaction], queue=queue
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)
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celery.chain(s_process_account_metadata, s_notify_account).apply_async()
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@celery_app.task
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def transaction_callback(result: dict, param: str, status_code: int):
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"""
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:param result:
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:type result:
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:param param:
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:type param:
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:param status_code:
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:type status_code:
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:return:
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:rtype:
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"""
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if status_code != 0:
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raise ValueError(f'Unexpected status code: {status_code}.')
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chain_str = Chain.spec.__str__()
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destination_token_symbol = result.get('destination_token_symbol')
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destination_token_value = result.get('destination_token_value')
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recipient_blockchain_address = result.get('recipient')
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sender_blockchain_address = result.get('sender')
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source_token_symbol = result.get('source_token_symbol')
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source_token_value = result.get('source_token_value')
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recipient_metadata = {
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"token_symbol": destination_token_symbol,
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"token_value": destination_token_value,
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"blockchain_address": recipient_blockchain_address,
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"role": "recipient",
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"transaction_type": param
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}
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get_balances(
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address=recipient_blockchain_address,
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callback_param=recipient_metadata,
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chain_str=chain_str,
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callback_task='cic_ussd.tasks.callback_handler.transaction_balances_callback',
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token_symbol=destination_token_symbol,
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asynchronous=True)
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if param == 'transfer':
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sender_metadata = {
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"blockchain_address": sender_blockchain_address,
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"token_symbol": source_token_symbol,
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"token_value": source_token_value,
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"role": "sender",
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"transaction_type": param
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}
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get_balances(
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address=sender_blockchain_address,
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callback_param=sender_metadata,
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chain_str=chain_str,
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callback_task='cic_ussd.tasks.callback_handler.transaction_balances_callback',
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token_symbol=source_token_symbol,
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asynchronous=True)
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