Adds auxiliary to handle multi-token ops.
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@ -2,20 +2,22 @@
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import hashlib
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import json
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import logging
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from typing import Dict, Optional
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from typing import Optional, Union
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# external imports
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from cic_eth.api import Api
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from cic_types.condiments import MetadataPointer
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# local imports
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from cic_ussd.account.balance import get_cached_available_balance
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from cic_ussd.account.chain import Chain
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from cic_ussd.cache import cache_data_key, get_cached_data
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from cic_ussd.cache import cache_data, cache_data_key, get_cached_data
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from cic_ussd.error import CachedDataNotFoundError, SeppukuError
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from cic_ussd.metadata.tokens import query_token_info, query_token_metadata
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from cic_ussd.processor.util import wait_for_cache
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from cic_ussd.translation import translation_for
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logg = logging.getLogger(__name__)
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logg = logging.getLogger(__file__)
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def collate_token_metadata(token_info: dict, token_metadata: dict) -> dict:
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@ -27,6 +29,7 @@ def collate_token_metadata(token_info: dict, token_metadata: dict) -> dict:
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:return:
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:rtype:
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"""
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logg.debug(f'Collating token info: {token_info} and token metadata: {token_metadata}')
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description = token_info.get('description')
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issuer = token_info.get('issuer')
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location = token_metadata.get('location')
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@ -39,6 +42,79 @@ def collate_token_metadata(token_info: dict, token_metadata: dict) -> dict:
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}
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def create_account_tokens_list(blockchain_address: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:return:
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:rtype:
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"""
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token_symbols_list = get_cached_token_symbol_list(blockchain_address=blockchain_address)
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token_list_entries = []
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if token_symbols_list:
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logg.debug(f'Token symbols: {token_symbols_list} for account: {blockchain_address}')
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for token_symbol in token_symbols_list:
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entry = {}
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logg.debug(f'Processing token data for: {token_symbol}')
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key = cache_data_key([bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')], MetadataPointer.TOKEN_DATA)
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token_data = get_cached_data(key)
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token_data = json.loads(token_data)
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logg.debug(f'Retrieved token data: {token_data} for: {token_symbol}')
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token_name = token_data.get('name')
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entry['name'] = token_name
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token_symbol = token_data.get('symbol')
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entry['symbol'] = token_symbol
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token_issuer = token_data.get('issuer')
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entry['issuer'] = token_issuer
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token_contact = token_data['contact'].get('phone')
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entry['contact'] = token_contact
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token_location = token_data.get('location')
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entry['location'] = token_location
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decimals = token_data.get('decimals')
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identifier = [bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')]
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wait_for_cache(identifier, f'Cached available balance for token: {token_symbol}', MetadataPointer.BALANCES)
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token_balance = get_cached_available_balance(decimals=decimals, identifier=identifier)
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entry['balance'] = token_balance
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logg.debug(f'APPENDING: {entry}')
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token_list_entries.append(entry)
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logg.debug(f'TOKEN LIST ENTRIES: {token_list_entries}')
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account_tokens_list = order_account_tokens_list(token_list_entries, bytes.fromhex(blockchain_address))
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logg.debug(f'ORDERED ACCOUNT TOKENS LIST: {account_tokens_list}')
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key = cache_data_key(bytes.fromhex(blockchain_address), MetadataPointer.TOKEN_DATA_LIST)
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cache_data(key, json.dumps(account_tokens_list))
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def get_active_token_symbol(blockchain_address: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:return:
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:rtype:
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"""
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identifier = bytes.fromhex(blockchain_address)
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key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_ACTIVE)
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active_token_symbol = get_cached_data(key)
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if not active_token_symbol:
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raise CachedDataNotFoundError('No active token set.')
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return active_token_symbol
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def get_cached_token_data(blockchain_address: str, token_symbol: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:param token_symbol:
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:type token_symbol:
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:return:
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:rtype:
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"""
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identifier = [bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')]
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key = cache_data_key(identifier, MetadataPointer.TOKEN_DATA)
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logg.debug(f'Retrieving token data for: {token_symbol} at: {key}')
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token_data = get_cached_data(key)
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return json.loads(token_data)
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def get_cached_default_token(chain_str: str) -> Optional[str]:
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"""This function attempts to retrieve the default token's data from the redis cache.
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:param chain_str: chain name and network id.
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@ -72,31 +148,138 @@ def get_default_token_symbol():
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raise SeppukuError(f'Could not retrieve default token for: {chain_str}')
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def hashed_token_proof(token_proof: dict) -> str:
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def get_cached_token_symbol_list(blockchain_address: str) -> Optional[list]:
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"""
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:param blockchain_address:
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:type blockchain_address:
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:return:
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:rtype:
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"""
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key = cache_data_key(identifier=bytes.fromhex(blockchain_address), salt=MetadataPointer.TOKEN_SYMBOLS_LIST)
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token_symbols_list = get_cached_data(key)
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if token_symbols_list:
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return json.loads(token_symbols_list)
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return token_symbols_list
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def get_cached_token_data_list(blockchain_address: str) -> Optional[list]:
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"""
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:param blockchain_address:
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:type blockchain_address:
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:return:
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:rtype:
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"""
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key = cache_data_key(bytes.fromhex(blockchain_address), MetadataPointer.TOKEN_DATA_LIST)
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token_data_list = get_cached_data(key)
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if token_data_list:
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return json.loads(token_data_list)
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return token_data_list
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def handle_token_symbol_list(blockchain_address: str, token_symbol: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:param token_symbol:
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:type token_symbol:
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:return:
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:rtype:
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"""
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token_symbol_list = get_cached_token_symbol_list(blockchain_address)
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if token_symbol_list:
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if token_symbol not in token_symbol_list:
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token_symbol_list.append(token_symbol)
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else:
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token_symbol_list = [token_symbol]
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identifier = bytes.fromhex(blockchain_address)
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key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_SYMBOLS_LIST)
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data = json.dumps(token_symbol_list)
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cache_data(key, data)
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def hashed_token_proof(token_proof: Union[dict, str]) -> str:
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"""
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:param token_proof:
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:type token_proof:
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:return:
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:rtype:
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"""
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if isinstance(token_proof, dict):
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token_proof = json.dumps(token_proof)
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logg.debug(f'Hashing token proof: {token_proof}')
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hash_object = hashlib.new("sha256")
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hash_object.update(json.dumps(token_proof).encode('utf-8'))
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hash_object.update(token_proof.encode('utf-8'))
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return hash_object.digest().hex()
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def process_token_data(token_symbol: str):
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def order_account_tokens_list(account_tokens_list: list, identifier: bytes) -> list:
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"""
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:param account_tokens_list:
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:type account_tokens_list:
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:param identifier:
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:type identifier:
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:return:
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:rtype:
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"""
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logg.debug(f'RECEIVED ACCOUNT TOKENS LIST: {account_tokens_list}')
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ordered_tokens_list = []
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# get last sent token
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key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_SENT)
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last_sent_token_symbol = get_cached_data(key)
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logg.debug(f'LAST SENT TOKEN: {last_sent_token_symbol}')
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# get last received token
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key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_RECEIVED)
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last_received_token_symbol = get_cached_data(key)
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logg.debug(f'LAST RECEIVED TOKEN: {last_received_token_symbol}')
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last_sent_token_data, remaining_accounts_token_list = remove_from_account_tokens_list(account_tokens_list, last_sent_token_symbol)
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if last_sent_token_data:
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ordered_tokens_list.append(last_sent_token_data[0])
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logg.debug(f'ORDERED TOKEN LIST AFTER REMOVING SENT: {ordered_tokens_list}')
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logg.debug(f'REMAINING TOKEN LIST AFTER REMOVING SENT: {remaining_accounts_token_list}')
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last_received_token_data, remaining_accounts_token_list = remove_from_account_tokens_list(remaining_accounts_token_list, last_received_token_symbol)
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if last_received_token_data:
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ordered_tokens_list.append(last_received_token_data[0])
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logg.debug(f'ORDERED TOKEN LIST AFTER REMOVING RECEIVED: {ordered_tokens_list}')
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logg.debug(f'REMAINING TOKEN LIST AFTER REMOVING SENT: {remaining_accounts_token_list}')
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# order the by balance
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ordered_by_balance = sorted(remaining_accounts_token_list, key=lambda d: d['balance'], reverse=True)
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logg.debug(f'ORDERED BY BALANCE FOR REMAINING LIST: {ordered_by_balance}')
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return ordered_tokens_list + ordered_by_balance
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def parse_token_list(account_token_list: list):
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parsed_token_list = []
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for i in range(len(account_token_list)):
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token_symbol = account_token_list[i].get('symbol')
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token_balance = account_token_list[i].get('balance')
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token_data_repr = f'{i+1}. {token_symbol} {token_balance}'
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parsed_token_list.append(token_data_repr)
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return parsed_token_list
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def process_token_data(blockchain_address: str, token_symbol: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:param token_symbol:
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:type token_symbol:
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:return:
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:rtype:
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"""
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logg.debug(f'Processing token data for token: {token_symbol}')
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identifier = token_symbol.encode('utf-8')
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query_token_metadata(identifier=identifier)
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token_info = query_token_info(identifier=identifier)
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hashed_token_info = hashed_token_proof(token_proof=token_info)
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query_token_data(hashed_proofs=[hashed_token_info], token_symbols=[token_symbol])
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query_token_data(blockchain_address=blockchain_address,
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hashed_proofs=[hashed_token_info],
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token_symbols=[token_symbol])
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def query_default_token(chain_str: str):
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@ -112,17 +295,58 @@ def query_default_token(chain_str: str):
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return default_token_request_task.get()
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def query_token_data(hashed_proofs: list, token_symbols: list):
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"""
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:param hashed_proofs:
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:type hashed_proofs:
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:param token_symbols:
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:type token_symbols:
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:return:
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:rtype:
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"""
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api = Api(callback_param='',
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def query_token_data(blockchain_address: str, hashed_proofs: list, token_symbols: list):
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""""""
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logg.debug(f'Retrieving token metadata for tokens: {", ".join(token_symbols)}')
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api = Api(callback_param=blockchain_address,
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callback_queue='cic-ussd',
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chain_str=Chain.spec.__str__(),
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callback_task='cic_ussd.tasks.callback_handler.token_data_callback')
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api.tokens(token_symbols=token_symbols, proof=hashed_proofs)
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def remove_from_account_tokens_list(account_tokens_list: list, token_symbol: str):
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"""
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:param account_tokens_list:
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:type account_tokens_list:
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:param token_symbol:
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:type token_symbol:
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:return:
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:rtype:
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"""
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removed_token_data = []
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for i in range(len(account_tokens_list)):
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if account_tokens_list[i]['symbol'] == token_symbol:
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removed_token_data.append(account_tokens_list[i])
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del account_tokens_list[i]
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break
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return removed_token_data, account_tokens_list
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def set_active_token(blockchain_address: str, token_symbol: str):
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"""
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:param blockchain_address:
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:type blockchain_address:
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:param token_symbol:
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:type token_symbol:
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:return:
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:rtype:
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"""
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logg.info(f'Active token set to: {token_symbol}')
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key = cache_data_key(identifier=bytes.fromhex(blockchain_address), salt=MetadataPointer.TOKEN_ACTIVE)
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cache_data(key=key, data=token_symbol)
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def token_list_set(preferred_language: str, token_data_reprs: list):
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"""
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:param preferred_language:
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:type preferred_language:
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:param token_data_reprs:
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:type token_data_reprs:
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:return:
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:rtype:
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"""
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if not token_data_reprs:
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return translation_for('helpers.no_tokens_list', preferred_language)
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return ''.join(f'{token_data_repr}\n' for token_data_repr in token_data_reprs)
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