# -*- coding: utf-8 -*-

# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code

from ccxt.async_support.base.exchange import Exchange
from ccxt.abstract.blockchaincom import ImplicitAPI
from ccxt.base.types import Balances, Currency, Int, Market, Num, Order, OrderBook, OrderSide, OrderType, Str, Strings, Ticker, Tickers, Trade, TradingFees, Transaction
from typing import List
from ccxt.base.errors import ExchangeError
from ccxt.base.errors import AuthenticationError
from ccxt.base.errors import ArgumentsRequired
from ccxt.base.errors import InsufficientFunds
from ccxt.base.errors import OrderNotFound
from ccxt.base.decimal_to_precision import TICK_SIZE
from ccxt.base.precise import Precise


class blockchaincom(Exchange, ImplicitAPI):

    def describe(self):
        return self.deep_extend(super(blockchaincom, self).describe(), {
            'id': 'blockchaincom',
            'secret': None,
            'name': 'Blockchain.com',
            'countries': ['LX'],
            'rateLimit': 500,  # prev 1000
            'version': 'v3',
            'pro': True,
            'has': {
                'CORS': False,
                'spot': True,
                'margin': None,  # on exchange but not implemented in CCXT
                'swap': False,
                'future': False,
                'option': False,
                'cancelAllOrders': True,
                'cancelOrder': True,
                'createOrder': True,
                'createStopLimitOrder': True,
                'createStopMarketOrder': True,
                'createStopOrder': True,
                'fetchBalance': True,
                'fetchCanceledOrders': True,
                'fetchClosedOrders': True,
                'fetchDeposit': True,
                'fetchDepositAddress': True,
                'fetchDeposits': True,
                'fetchFundingHistory': False,
                'fetchFundingRate': False,
                'fetchFundingRateHistory': False,
                'fetchFundingRates': False,
                'fetchIndexOHLCV': False,
                'fetchL2OrderBook': True,
                'fetchL3OrderBook': True,
                'fetchLedger': False,
                'fetchMarginMode': False,
                'fetchMarkets': True,
                'fetchMarkOHLCV': False,
                'fetchMyTrades': True,
                'fetchOHLCV': False,
                'fetchOpenInterestHistory': False,
                'fetchOpenOrders': True,
                'fetchOrder': True,
                'fetchOrderBook': True,
                'fetchPositionMode': False,
                'fetchPremiumIndexOHLCV': False,
                'fetchTicker': True,
                'fetchTickers': True,
                'fetchTrades': False,
                'fetchTradingFee': False,
                'fetchTradingFees': True,
                'fetchTransfer': False,
                'fetchTransfers': False,
                'fetchWithdrawal': True,
                'fetchWithdrawals': True,
                'fetchWithdrawalWhitelist': True,  # fetches exchange specific benficiary-ids needed for withdrawals
                'transfer': False,
                'withdraw': True,
            },
            'timeframes': None,
            'urls': {
                'logo': 'https://user-images.githubusercontent.com/1294454/147515585-1296e91b-7398-45e5-9d32-f6121538533f.jpeg',
                'test': {
                    'public': 'https://testnet-api.delta.exchange',
                    'private': 'https://testnet-api.delta.exchange',
                },
                'api': {
                    'public': 'https://api.blockchain.com/v3/exchange',
                    'private': 'https://api.blockchain.com/v3/exchange',
                },
                'www': 'https://blockchain.com',
                'doc': [
                    'https://api.blockchain.com/v3',
                ],
                'fees': 'https://exchange.blockchain.com/fees',
            },
            'api': {
                'public': {
                    'get': {
                        'tickers': 1,  # fetchTickers
                        'tickers/{symbol}': 1,  # fetchTicker
                        'symbols': 1,  # fetchMarkets
                        'symbols/{symbol}': 1,  # fetchMarket
                        'l2/{symbol}': 1,  # fetchL2OrderBook
                        'l3/{symbol}': 1,  # fetchL3OrderBook
                    },
                },
                'private': {
                    'get': {
                        'fees': 1,  # fetchFees
                        'orders': 1,  # fetchOpenOrders, fetchClosedOrders
                        'orders/{orderId}': 1,  # fetchOrder(id)
                        'trades': 1,
                        'fills': 1,  # fetchMyTrades
                        'deposits': 1,  # fetchDeposits
                        'deposits/{depositId}': 1,  # fetchDeposit
                        'accounts': 1,  # fetchBalance
                        'accounts/{account}/{currency}': 1,
                        'whitelist': 1,  # fetchWithdrawalWhitelist
                        'whitelist/{currency}': 1,  # fetchWithdrawalWhitelistByCurrency
                        'withdrawals': 1,  # fetchWithdrawalWhitelist
                        'withdrawals/{withdrawalId}': 1,  # fetchWithdrawalById
                    },
                    'post': {
                        'orders': 1,  # createOrder
                        'deposits/{currency}': 1,  # fetchDepositAddress by currency(only crypto supported)
                        'withdrawals': 1,  # withdraw
                    },
                    'delete': {
                        'orders': 1,  # cancelOrders
                        'orders/{orderId}': 1,  # cancelOrder
                    },
                },
            },
            'fees': {
                'trading': {
                    'feeSide': 'get',
                    'tierBased': True,
                    'percentage': True,
                    'tiers': {
                        'taker': [
                            [self.parse_number('0'), self.parse_number('0.004')],
                            [self.parse_number('10000'), self.parse_number('0.0022')],
                            [self.parse_number('50000'), self.parse_number('0.002')],
                            [self.parse_number('100000'), self.parse_number('0.0018')],
                            [self.parse_number('500000'), self.parse_number('0.0018')],
                            [self.parse_number('1000000'), self.parse_number('0.0018')],
                            [self.parse_number('2500000'), self.parse_number('0.0018')],
                            [self.parse_number('5000000'), self.parse_number('0.0016')],
                            [self.parse_number('25000000'), self.parse_number('0.0014')],
                            [self.parse_number('100000000'), self.parse_number('0.0011')],
                            [self.parse_number('500000000'), self.parse_number('0.0008')],
                            [self.parse_number('1000000000'), self.parse_number('0.0006')],
                        ],
                        'maker': [
                            [self.parse_number('0'), self.parse_number('0.002')],
                            [self.parse_number('10000'), self.parse_number('0.0012')],
                            [self.parse_number('50000'), self.parse_number('0.001')],
                            [self.parse_number('100000'), self.parse_number('0.0008')],
                            [self.parse_number('500000'), self.parse_number('0.0007000000000000001')],
                            [self.parse_number('1000000'), self.parse_number('0.0006')],
                            [self.parse_number('2500000'), self.parse_number('0.0005')],
                            [self.parse_number('5000000'), self.parse_number('0.0004')],
                            [self.parse_number('25000000'), self.parse_number('0.0003')],
                            [self.parse_number('100000000'), self.parse_number('0.0002')],
                            [self.parse_number('500000000'), self.parse_number('0.0001')],
                            [self.parse_number('1000000000'), self.parse_number('0')],
                        ],
                    },
                },
            },
            'requiredCredentials': {
                'apiKey': False,
                'secret': True,
            },
            'options': {
                'networks': {
                    'ERC20': 'ETH',
                    'TRC20': 'TRX',
                    'ALGO': 'ALGO',
                    'ADA': 'ADA',
                    'AR': 'AR',
                    'ATOM': 'ATOM',
                    'AVAXC': 'AVAX',
                    'BCH': 'BCH',
                    'BSV': 'BSV',
                    'BTC': 'BTC',
                    # 'BEP20': 'BNB',  # todo
                    'DCR': 'DCR',
                    'DESO': 'DESO',
                    'DASH': 'DASH',
                    'CELO': 'CELO',
                    'CHZ': 'CHZ',
                    'MATIC': 'MATIC',
                    'SOL': 'SOL',
                    'DOGE': 'DOGE',
                    'DOT': 'DOT',
                    'EOS': 'EOS',
                    'ETC': 'ETC',
                    'FIL': 'FIL',
                    'KAVA': 'KAVA',
                    'LTC': 'LTC',
                    'IOTA': 'MIOTA',
                    'NEAR': 'NEAR',
                    'STX': 'STX',
                    'XLM': 'XLM',
                    'XMR': 'XMR',
                    'XRP': 'XRP',
                    'XTZ': 'XTZ',
                    'ZEC': 'ZEC',
                    'ZIL': 'ZIL',
                    # 'THETA': 'THETA',  # todo: possible TFUEL THETA FUEL is also same, but API might have a mistake
                    # todo: uncomment below after consensus
                    # 'MOBILECOIN': 'MOB',
                    # 'KIN': 'KIN',
                    # 'DIGITALGOLD': 'DGLD',
                },
            },
            'precisionMode': TICK_SIZE,
            'exceptions': {
                'exact': {
                    '401': AuthenticationError,
                    '404': OrderNotFound,
                },
                'broad': {},
            },
        })

    async def fetch_markets(self, params={}) -> List[Market]:
        """
        retrieves data on all markets for blockchaincom
        :see: https://api.blockchain.com/v3/#/unauthenticated/getSymbols
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict[]: an array of objects representing market data
        """
        #
        #     "USDC-GBP": {
        #         "base_currency": "USDC",
        #         "base_currency_scale": 6,
        #         "counter_currency": "GBP",
        #         "counter_currency_scale": 2,
        #         "min_price_increment": 10000,
        #         "min_price_increment_scale": 8,
        #         "min_order_size": 500000000,
        #         "min_order_size_scale": 8,
        #         "max_order_size": 0,
        #         "max_order_size_scale": 8,
        #         "lot_size": 10000,
        #         "lot_size_scale": 8,
        #         "status": "open",
        #         "id": 68,
        #         "auction_price": 0,
        #         "auction_size": 0,
        #         "auction_time": "",
        #         "imbalance": 0
        #     }
        #
        markets = await self.publicGetSymbols(params)
        marketIds = list(markets.keys())
        result = []
        for i in range(0, len(marketIds)):
            marketId = marketIds[i]
            market = self.safe_value(markets, marketId)
            baseId = self.safe_string(market, 'base_currency')
            quoteId = self.safe_string(market, 'counter_currency')
            base = self.safe_currency_code(baseId)
            quote = self.safe_currency_code(quoteId)
            numericId = self.safe_number(market, 'id')
            active = None
            marketState = self.safe_string(market, 'status')
            if marketState == 'open':
                active = True
            else:
                active = False
            # price precision
            minPriceIncrementString = self.safe_string(market, 'min_price_increment')
            minPriceIncrementScaleString = self.safe_string(market, 'min_price_increment_scale')
            minPriceScalePrecisionString = self.parse_precision(minPriceIncrementScaleString)
            pricePrecisionString = Precise.string_mul(minPriceIncrementString, minPriceScalePrecisionString)
            # amount precision
            lotSizeString = self.safe_string(market, 'lot_size')
            lotSizeScaleString = self.safe_string(market, 'lot_size_scale')
            lotSizeScalePrecisionString = self.parse_precision(lotSizeScaleString)
            amountPrecisionString = Precise.string_mul(lotSizeString, lotSizeScalePrecisionString)
            # minimum order size
            minOrderSizeString = self.safe_string(market, 'min_order_size')
            minOrderSizeScaleString = self.safe_string(market, 'min_order_size_scale')
            minOrderSizeScalePrecisionString = self.parse_precision(minOrderSizeScaleString)
            minOrderSizePreciseString = Precise.string_mul(minOrderSizeString, minOrderSizeScalePrecisionString)
            minOrderSize = self.parse_number(minOrderSizePreciseString)
            # maximum order size
            maxOrderSize = None
            maxOrderSize = self.safe_string(market, 'max_order_size')
            if maxOrderSize != '0':
                maxOrderSizeScaleString = self.safe_string(market, 'max_order_size_scale')
                maxOrderSizeScalePrecisionString = self.parse_precision(maxOrderSizeScaleString)
                maxOrderSizeString = Precise.string_mul(maxOrderSize, maxOrderSizeScalePrecisionString)
                maxOrderSize = self.parse_number(maxOrderSizeString)
            else:
                maxOrderSize = None
            result.append({
                'info': market,
                'id': marketId,
                'numericId': numericId,
                'symbol': base + '/' + quote,
                'base': base,
                'quote': quote,
                'settle': None,
                'baseId': baseId,
                'quoteId': quoteId,
                'settleId': None,
                'type': 'spot',
                'spot': True,
                'margin': False,
                'swap': False,
                'future': False,
                'option': False,
                'active': active,
                'contract': False,
                'linear': None,
                'inverse': None,
                'contractSize': None,
                'expiry': None,
                'expiryDatetime': None,
                'strike': None,
                'optionType': None,
                'precision': {
                    'amount': self.parse_number(amountPrecisionString),
                    'price': self.parse_number(pricePrecisionString),
                },
                'limits': {
                    'leverage': {
                        'min': None,
                        'max': None,
                    },
                    'amount': {
                        'min': minOrderSize,
                        'max': maxOrderSize,
                    },
                    'price': {
                        'min': None,
                        'max': None,
                    },
                    'cost': {
                        'min': None,
                        'max': None,
                    },
                },
                'created': None,
            })
        return result

    async def fetch_order_book(self, symbol: str, limit: Int = None, params={}) -> OrderBook:
        """
        fetches information on open orders with bid(buy) and ask(sell) prices, volumes and other data
        :see: https://api.blockchain.com/v3/#/unauthenticated/getL3OrderBook
        :param str symbol: unified symbol of the market to fetch the order book for
        :param int [limit]: the maximum amount of order book entries to return
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: A dictionary of `order book structures <https://docs.ccxt.com/#/?id=order-book-structure>` indexed by market symbols
        """
        return await self.fetch_l3_order_book(symbol, limit, params)

    async def fetch_l3_order_book(self, symbol: str, limit: Int = None, params={}):
        """
        fetches level 3 information on open orders with bid(buy) and ask(sell) prices, volumes and other data
        :see: https://api.blockchain.com/v3/#/unauthenticated/getL3OrderBook
        :param str symbol: unified market symbol
        :param int [limit]: max number of orders to return, default is None
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: an `order book structure <https://docs.ccxt.com/#/?id=order-book-structure>`
        """
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
        }
        if limit is not None:
            request['depth'] = limit
        response = await self.publicGetL3Symbol(self.extend(request, params))
        return self.parse_order_book(response, market['symbol'], None, 'bids', 'asks', 'px', 'qty')

    async def fetch_l2_order_book(self, symbol: str, limit: Int = None, params={}):
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
        }
        if limit is not None:
            request['depth'] = limit
        response = await self.publicGetL2Symbol(self.extend(request, params))
        return self.parse_order_book(response, market['symbol'], None, 'bids', 'asks', 'px', 'qty')

    def parse_ticker(self, ticker: dict, market: Market = None) -> Ticker:
        #
        #     {
        #     "symbol": "BTC-USD",
        #     "price_24h": 47791.86,
        #     "volume_24h": 362.88635738,
        #     "last_trade_price": 47587.75
        #     }
        #
        marketId = self.safe_string(ticker, 'symbol')
        symbol = self.safe_symbol(marketId, market, '-')
        last = self.safe_string(ticker, 'last_trade_price')
        baseVolume = self.safe_string(ticker, 'volume_24h')
        open = self.safe_string(ticker, 'price_24h')
        return self.safe_ticker({
            'symbol': symbol,
            'timestamp': None,
            'datetime': None,
            'high': None,
            'low': None,
            'bid': None,
            'bidVolume': None,
            'ask': None,
            'askVolume': None,
            'vwap': None,
            'open': open,
            'close': None,
            'last': last,
            'previousClose': None,
            'change': None,
            'percentage': None,
            'average': None,
            'baseVolume': baseVolume,
            'quoteVolume': None,
            'info': ticker,
        }, market)

    async def fetch_ticker(self, symbol: str, params={}) -> Ticker:
        """
        fetches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
        :see: https://api.blockchain.com/v3/#/unauthenticated/getTickerBySymbol
        :param str symbol: unified symbol of the market to fetch the ticker for
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `ticker structure <https://docs.ccxt.com/#/?id=ticker-structure>`
        """
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
        }
        response = await self.publicGetTickersSymbol(self.extend(request, params))
        return self.parse_ticker(response, market)

    async def fetch_tickers(self, symbols: Strings = None, params={}) -> Tickers:
        """
        fetches price tickers for multiple markets, statistical information calculated over the past 24 hours for each market
        :see: https://api.blockchain.com/v3/#/unauthenticated/getTickers
        :param str[]|None symbols: unified symbols of the markets to fetch the ticker for, all market tickers are returned if not assigned
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a dictionary of `ticker structures <https://docs.ccxt.com/#/?id=ticker-structure>`
        """
        await self.load_markets()
        tickers = await self.publicGetTickers(params)
        return self.parse_tickers(tickers, symbols)

    def parse_order_state(self, state):
        states: dict = {
            'OPEN': 'open',
            'REJECTED': 'rejected',
            'FILLED': 'closed',
            'CANCELED': 'canceled',
            'PART_FILLED': 'open',
            'EXPIRED': 'expired',
        }
        return self.safe_string(states, state, state)

    def parse_order(self, order: dict, market: Market = None) -> Order:
        #
        #     {
        #         "clOrdId": "00001",
        #         "ordType": "MARKET",
        #         "ordStatus": "FILLED",
        #         "side": "BUY",
        #         "symbol": "USDC-USDT",
        #         "exOrdId": "281775861306290",
        #         "price": null,
        #         "text": "Fill",
        #         "lastShares": "30.0",
        #         "lastPx": "0.9999",
        #         "leavesQty": "0.0",
        #         "cumQty": "30.0",
        #         "avgPx": "0.9999",
        #         "timestamp": "1633940339619"
        #     }
        #
        clientOrderId = self.safe_string(order, 'clOrdId')
        type = self.safe_string_lower(order, 'ordType')
        statusId = self.safe_string(order, 'ordStatus')
        state = self.parse_order_state(statusId)
        side = self.safe_string_lower(order, 'side')
        marketId = self.safe_string(order, 'symbol')
        symbol = self.safe_symbol(marketId, market, '-')
        exchangeOrderId = self.safe_string(order, 'exOrdId')
        price = self.safe_string(order, 'price') if (type != 'market') else None
        average = self.safe_number(order, 'avgPx')
        timestamp = self.safe_integer(order, 'timestamp')
        datetime = self.iso8601(timestamp)
        filled = self.safe_string(order, 'cumQty')
        remaining = self.safe_string(order, 'leavesQty')
        result = self.safe_order({
            'id': exchangeOrderId,
            'clientOrderId': clientOrderId,
            'datetime': datetime,
            'timestamp': timestamp,
            'lastTradeTimestamp': None,
            'status': state,
            'symbol': symbol,
            'type': type,
            'timeInForce': None,
            'side': side,
            'price': price,
            'average': average,
            'amount': None,
            'filled': filled,
            'remaining': remaining,
            'cost': None,
            'trades': [],
            'fees': [],
            'info': order,
        })
        return result

    async def create_order(self, symbol: str, type: OrderType, side: OrderSide, amount: float, price: Num = None, params={}):
        """
        create a trade order
        :see: https://api.blockchain.com/v3/#/trading/createOrder
        :param str symbol: unified symbol of the market to create an order in
        :param str type: 'market' or 'limit'
        :param str side: 'buy' or 'sell'
        :param float amount: how much of currency you want to trade in units of base currency
        :param float [price]: the price at which the order is to be fullfilled, in units of the quote currency, ignored in market orders
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: an `order structure <https://docs.ccxt.com/#/?id=order-structure>`
        """
        await self.load_markets()
        market = self.market(symbol)
        orderType = self.safe_string(params, 'ordType', type)
        uppercaseOrderType = orderType.upper()
        clientOrderId = self.safe_string_2(params, 'clientOrderId', 'clOrdId', self.uuid16())
        params = self.omit(params, ['ordType', 'clientOrderId', 'clOrdId'])
        request: dict = {
            # 'stopPx' : limit price
            # 'timeInForce' : "GTC" for Good Till Cancel, "IOC" for Immediate or Cancel, "FOK" for Fill or Kill, "GTD" Good Till Date
            # 'expireDate' : expiry date in the format YYYYMMDD
            # 'minQty' : The minimum quantity required for an IOC fill
            'ordType': uppercaseOrderType,
            'symbol': market['id'],
            'side': side.upper(),
            'orderQty': self.amount_to_precision(symbol, amount),
            'clOrdId': clientOrderId,
        }
        stopPrice = self.safe_value_2(params, 'stopPx', 'stopPrice')
        params = self.omit(params, ['stopPx', 'stopPrice'])
        if uppercaseOrderType == 'STOP' or uppercaseOrderType == 'STOPLIMIT':
            if stopPrice is None:
                raise ArgumentsRequired(self.id + ' createOrder() requires a stopPx or stopPrice param for a ' + uppercaseOrderType + ' order')
        if stopPrice is not None:
            if uppercaseOrderType == 'MARKET':
                request['ordType'] = 'STOP'
            elif uppercaseOrderType == 'LIMIT':
                request['ordType'] = 'STOPLIMIT'
        priceRequired = False
        stopPriceRequired = False
        if request['ordType'] == 'LIMIT' or request['ordType'] == 'STOPLIMIT':
            priceRequired = True
        if request['ordType'] == 'STOP' or request['ordType'] == 'STOPLIMIT':
            stopPriceRequired = True
        if priceRequired:
            request['price'] = self.price_to_precision(symbol, price)
        if stopPriceRequired:
            request['stopPx'] = self.price_to_precision(symbol, stopPrice)
        response = await self.privatePostOrders(self.extend(request, params))
        return self.parse_order(response, market)

    async def cancel_order(self, id: str, symbol: Str = None, params={}):
        """
        cancels an open order
        :see: https://api.blockchain.com/v3/#/trading/deleteOrder
        :param str id: order id
        :param str symbol: unified symbol of the market the order was made in
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: An `order structure <https://docs.ccxt.com/#/?id=order-structure>`
        """
        request: dict = {
            'orderId': id,
        }
        response = await self.privateDeleteOrdersOrderId(self.extend(request, params))
        return self.safe_order({
            'id': id,
            'info': response,
        })

    async def cancel_all_orders(self, symbol: Str = None, params={}):
        """
        cancel all open orders
        :see: https://api.blockchain.com/v3/#deleteallorders
        :param str symbol: unified market symbol of the market to cancel orders in, all markets are used if None, default is None
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: an list of `order structures <https://docs.ccxt.com/#/?id=order-structure>`
        """
        # cancels all open orders if no symbol specified
        # cancels all open orders of specified symbol, if symbol is specified
        await self.load_markets()
        request: dict = {
            # 'symbol': marketId,
        }
        if symbol is not None:
            marketId = self.market_id(symbol)
            request['symbol'] = marketId
        response = await self.privateDeleteOrders(self.extend(request, params))
        #
        # {}
        #
        return [
            self.safe_order({
                'info': response,
            }),
        ]

    async def fetch_trading_fees(self, params={}) -> TradingFees:
        """
        fetch the trading fees for multiple markets
        :see: https://api.blockchain.com/v3/#/trading/getFees
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a dictionary of `fee structures <https://docs.ccxt.com/#/?id=fee-structure>` indexed by market symbols
        """
        await self.load_markets()
        response = await self.privateGetFees(params)
        #
        #     {
        #         "makerRate": "0.002",
        #         "takerRate": "0.004",
        #         "volumeInUSD": "0.0"
        #     }
        #
        makerFee = self.safe_number(response, 'makerRate')
        takerFee = self.safe_number(response, 'takerRate')
        result: dict = {}
        for i in range(0, len(self.symbols)):
            symbol = self.symbols[i]
            result[symbol] = {
                'info': response,
                'symbol': symbol,
                'maker': makerFee,
                'taker': takerFee,
            }
        return result

    async def fetch_canceled_orders(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}):
        """
        fetches information on multiple canceled orders made by the user
        :see: https://api.blockchain.com/v3/#/trading/getOrders
        :param str symbol: unified market symbol of the market orders were made in
        :param int [since]: timestamp in ms of the earliest order, default is None
        :param int [limit]: max number of orders to return, default is None
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a list of `order structures <https://docs.ccxt.com/#/?id=order-structure>`
        """
        state = 'CANCELED'
        return await self.fetch_orders_by_state(state, symbol, since, limit, params)

    async def fetch_closed_orders(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Order]:
        """
        fetches information on multiple closed orders made by the user
        :see: https://api.blockchain.com/v3/#/trading/getOrders
        :param str symbol: unified market symbol of the market orders were made in
        :param int [since]: the earliest time in ms to fetch orders for
        :param int [limit]: the maximum number of order structures to retrieve
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns Order[]: a list of `order structures <https://docs.ccxt.com/#/?id=order-structure>`
        """
        state = 'FILLED'
        return await self.fetch_orders_by_state(state, symbol, since, limit, params)

    async def fetch_open_orders(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Order]:
        """
        fetch all unfilled currently open orders
        :see: https://api.blockchain.com/v3/#/trading/getOrders
        :param str symbol: unified market symbol
        :param int [since]: the earliest time in ms to fetch open orders for
        :param int [limit]: the maximum number of  open orders structures to retrieve
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns Order[]: a list of `order structures <https://docs.ccxt.com/#/?id=order-structure>`
        """
        state = 'OPEN'
        return await self.fetch_orders_by_state(state, symbol, since, limit, params)

    async def fetch_orders_by_state(self, state, symbol: Str = None, since: Int = None, limit: Int = None, params={}):
        await self.load_markets()
        request: dict = {
            # 'to': unix epoch ms
            # 'from': unix epoch ms
            'status': state,
            'limit': 100,
        }
        market = None
        if symbol is not None:
            market = self.market(symbol)
            request['symbol'] = market['id']
        response = await self.privateGetOrders(self.extend(request, params))
        return self.parse_orders(response, market, since, limit)

    def parse_trade(self, trade: dict, market: Market = None) -> Trade:
        #
        #     {
        #         "exOrdId":281685751028507,
        #         "tradeId":281685434947633,
        #         "execId":8847494003,
        #         "side":"BUY",
        #         "symbol":"AAVE-USDT",
        #         "price":405.34,
        #         "qty":0.1,
        #         "fee":0.162136,
        #         "timestamp":1634559249687
        #     }
        #
        orderId = self.safe_string(trade, 'exOrdId')
        tradeId = self.safe_string(trade, 'tradeId')
        side = self.safe_string(trade, 'side').lower()
        marketId = self.safe_string(trade, 'symbol')
        priceString = self.safe_string(trade, 'price')
        amountString = self.safe_string(trade, 'qty')
        timestamp = self.safe_integer(trade, 'timestamp')
        datetime = self.iso8601(timestamp)
        market = self.safe_market(marketId, market, '-')
        symbol = market['symbol']
        fee = None
        feeCostString = self.safe_string(trade, 'fee')
        if feeCostString is not None:
            feeCurrency = market['quote']
            fee = {'cost': feeCostString, 'currency': feeCurrency}
        return self.safe_trade({
            'id': tradeId,
            'timestamp': timestamp,
            'datetime': datetime,
            'symbol': symbol,
            'order': orderId,
            'type': None,
            'side': side,
            'takerOrMaker': None,
            'price': priceString,
            'amount': amountString,
            'cost': None,
            'fee': fee,
            'info': trade,
        }, market)

    async def fetch_my_trades(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}):
        """
        fetch all trades made by the user
        :see: https://api.blockchain.com/v3/#/trading/getFills
        :param str symbol: unified market symbol
        :param int [since]: the earliest time in ms to fetch trades for
        :param int [limit]: the maximum number of trades structures to retrieve
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns Trade[]: a list of `trade structures <https://docs.ccxt.com/#/?id=trade-structure>`
        """
        await self.load_markets()
        request: dict = {}
        if limit is not None:
            request['limit'] = limit
        market = None
        if symbol is not None:
            request['symbol'] = self.market_id(symbol)
            market = self.market(symbol)
        trades = await self.privateGetFills(self.extend(request, params))
        return self.parse_trades(trades, market, since, limit, params)  # need to define

    async def fetch_deposit_address(self, code: str, params={}):
        """
        fetch the deposit address for a currency associated with self account
        :see: https://api.blockchain.com/v3/#/payments/getDepositAddress
        :param str code: unified currency code
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: an `address structure <https://docs.ccxt.com/#/?id=address-structure>`
        """
        await self.load_markets()
        currency = self.currency(code)
        request: dict = {
            'currency': currency['id'],
        }
        response = await self.privatePostDepositsCurrency(self.extend(request, params))
        rawAddress = self.safe_string(response, 'address')
        tag = None
        address = None
        if rawAddress is not None:
            addressParts = rawAddress.split(';')
            # if a tag or memo is used it is separated by a colon in the 'address' value
            tag = self.safe_string(addressParts, 0)
            address = self.safe_string(addressParts, 1)
        result: dict = {'info': response}
        result['currency'] = currency['code']
        result['address'] = address
        if tag is not None:
            result['tag'] = tag
        return result

    def parse_transaction_state(self, state):
        states: dict = {
            'COMPLETED': 'ok',  #
            'REJECTED': 'failed',
            'PENDING': 'pending',
            'FAILED': 'failed',
            'REFUNDED': 'refunded',
        }
        return self.safe_string(states, state, state)

    def parse_transaction(self, transaction: dict, currency: Currency = None) -> Transaction:
        #
        # deposit
        #
        #     {
        #         "depositId":"748e9180-be0d-4a80-e175-0156150efc95",
        #         "amount":0.009,
        #         "currency":"ETH",
        #         "address":"0xEC6B5929D454C8D9546d4221ace969E1810Fa92c",
        #         "state":"COMPLETED",
        #         "txHash":"582114562140e51a80b481c2dfebaf62b4ab9769b8ff54820bb67e34d4a3ab0c",
        #         "timestamp":1633697196241
        #     }
        #
        # withdrawal
        #
        #     {
        #         "amount":30.0,
        #         "currency":"USDT",
        #         "beneficiary":"cab00d11-6e7f-46b7-b453-2e8ef6f101fa",  # blockchain specific id
        #         "withdrawalId":"99df5ef7-eab6-4033-be49-312930fbd1ea",
        #         "fee":34.005078,
        #         "state":"COMPLETED",
        #         "timestamp":1634218452549
        #     }
        #
        type = None
        id = None
        amount = self.safe_number(transaction, 'amount')
        timestamp = self.safe_integer(transaction, 'timestamp')
        currencyId = self.safe_string(transaction, 'currency')
        code = self.safe_currency_code(currencyId, currency)
        state = self.safe_string(transaction, 'state')
        if 'depositId' in transaction:
            type = 'deposit'
            id = self.safe_string(transaction, 'depositId')
        elif 'withdrawalId' in transaction:
            type = 'withdrawal'
            id = self.safe_string(transaction, 'withdrawalId')
        feeCost = self.safe_number(transaction, 'fee') if (type == 'withdrawal') else None
        fee = None
        if feeCost is not None:
            fee = {'currency': code, 'cost': feeCost}
        address = self.safe_string(transaction, 'address')
        txid = self.safe_string(transaction, 'txhash')
        return {
            'info': transaction,
            'id': id,
            'txid': txid,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'network': None,
            'addressFrom': None,
            'address': address,
            'addressTo': address,
            'tagFrom': None,
            'tag': None,
            'tagTo': None,
            'type': type,
            'amount': amount,
            'currency': code,
            'status': self.parse_transaction_state(state),  # 'status':   'pending',   # 'ok', 'failed', 'canceled', string
            'updated': None,
            'comment': None,
            'internal': None,
            'fee': fee,
        }

    async def withdraw(self, code: str, amount: float, address: str, tag=None, params={}):
        """
        make a withdrawal
        :see: https://api.blockchain.com/v3/#/payments/createWithdrawal
        :param str code: unified currency code
        :param float amount: the amount to withdraw
        :param str address: the address to withdraw to
        :param str tag:
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `transaction structure <https://docs.ccxt.com/#/?id=transaction-structure>`
        """
        await self.load_markets()
        currency = self.currency(code)
        request: dict = {
            'amount': amount,
            'currency': currency['id'],
            'beneficiary': address,
            'sendMax': False,
        }
        response = await self.privatePostWithdrawals(self.extend(request, params))
        #
        #     {
        #         "amount": "30.0",
        #         "currency": "USDT",
        #         "beneficiary": "adcd43fb-9ba6-41f7-8c0d-7013482cb88f",
        #         "withdrawalId": "99df5ef7-eab6-4033-be49-312930fbd1ea",
        #         "fee": "34.005078",
        #         "state": "PENDING",
        #         "timestamp": "1634218452595"
        #     },
        #
        return self.parse_transaction(response, currency)

    async def fetch_withdrawals(self, code: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Transaction]:
        """
        fetch all withdrawals made from an account
        :see: https://api.blockchain.com/v3/#/payments/getWithdrawals
        :param str code: unified currency code
        :param int [since]: the earliest time in ms to fetch withdrawals for
        :param int [limit]: the maximum number of withdrawals structures to retrieve
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict[]: a list of `transaction structures <https://docs.ccxt.com/#/?id=transaction-structure>`
        """
        await self.load_markets()
        request: dict = {
            # 'from' : integer timestamp in ms
            # 'to' : integer timestamp in ms
        }
        if since is not None:
            request['from'] = since
        currency = None
        if code is not None:
            currency = self.currency(code)
        response = await self.privateGetWithdrawals(self.extend(request, params))
        return self.parse_transactions(response, currency, since, limit)

    async def fetch_withdrawal(self, id: str, code: Str = None, params={}):
        """
        fetch data on a currency withdrawal via the withdrawal id
        :see: https://api.blockchain.com/v3/#/payments/getWithdrawalById
        :param str id: withdrawal id
        :param str code: not used by blockchaincom.fetchWithdrawal
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `transaction structure <https://docs.ccxt.com/#/?id=transaction-structure>`
        """
        await self.load_markets()
        request: dict = {
            'withdrawalId': id,
        }
        response = await self.privateGetWithdrawalsWithdrawalId(self.extend(request, params))
        return self.parse_transaction(response)

    async def fetch_deposits(self, code: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Transaction]:
        """
        fetch all deposits made to an account
        :see: https://api.blockchain.com/v3/#/payments/getDeposits
        :param str code: unified currency code
        :param int [since]: the earliest time in ms to fetch deposits for
        :param int [limit]: the maximum number of deposits structures to retrieve
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict[]: a list of `transaction structures <https://docs.ccxt.com/#/?id=transaction-structure>`
        """
        await self.load_markets()
        request: dict = {
            # 'from' : integer timestamp in ms
            # 'to' : integer timestap in ms
        }
        if since is not None:
            request['from'] = since
        currency = None
        if code is not None:
            currency = self.currency(code)
        response = await self.privateGetDeposits(self.extend(request, params))
        return self.parse_transactions(response, currency, since, limit)

    async def fetch_deposit(self, id: str, code: Str = None, params={}):
        """
        fetch information on a deposit
        :see: https://api.blockchain.com/v3/#/payments/getDepositById
        :param str id: deposit id
        :param str code: not used by blockchaincom fetchDeposit()
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `transaction structure <https://docs.ccxt.com/#/?id=transaction-structure>`
        """
        await self.load_markets()
        depositId = self.safe_string(params, 'depositId', id)
        request: dict = {
            'depositId': depositId,
        }
        deposit = await self.privateGetDepositsDepositId(self.extend(request, params))
        return self.parse_transaction(deposit)

    async def fetch_balance(self, params={}) -> Balances:
        """
        query for balance and get the amount of funds available for trading or funds locked in orders
        :see: https://api.blockchain.com/v3/#/payments/getAccounts
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `balance structure <https://docs.ccxt.com/#/?id=balance-structure>`
        """
        await self.load_markets()
        accountName = self.safe_string(params, 'account', 'primary')
        params = self.omit(params, 'account')
        request: dict = {
            'account': accountName,
        }
        response = await self.privateGetAccounts(self.extend(request, params))
        #
        #     {
        #         "primary": [
        #             {
        #                 "currency":"ETH",
        #                 "balance":0.009,
        #                 "available":0.009,
        #                 "balance_local":30.82869,
        #                 "available_local":30.82869,
        #                 "rate":3425.41
        #             },
        #             ...
        #         ]
        #     }
        #
        balances = self.safe_value(response, accountName)
        if balances is None:
            raise ExchangeError(self.id + ' fetchBalance() could not find the "' + accountName + '" account')
        result: dict = {'info': response}
        for i in range(0, len(balances)):
            entry = balances[i]
            currencyId = self.safe_string(entry, 'currency')
            code = self.safe_currency_code(currencyId)
            account = self.account()
            account['free'] = self.safe_string(entry, 'available')
            account['total'] = self.safe_string(entry, 'balance')
            result[code] = account
        return self.safe_balance(result)

    async def fetch_order(self, id: str, symbol: Str = None, params={}):
        """
        fetches information on an order made by the user
        :see: https://api.blockchain.com/v3/#/trading/getOrderById
        :param str symbol: not used by blockchaincom fetchOrder
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: An `order structure <https://docs.ccxt.com/#/?id=order-structure>`
        """
        # note: only works with exchange-order-id
        # does not work with clientOrderId
        await self.load_markets()
        request: dict = {
            'orderId': id,
        }
        response = await self.privateGetOrdersOrderId(self.extend(request, params))
        #
        #     {
        #         "exOrdId": 11111111,
        #         "clOrdId": "ABC",
        #         "ordType": "MARKET",
        #         "ordStatus": "FILLED",
        #         "side": "BUY",
        #         "price": 0.12345,
        #         "text": "string",
        #         "symbol": "BTC-USD",
        #         "lastShares": 0.5678,
        #         "lastPx": 3500.12,
        #         "leavesQty": 10,
        #         "cumQty": 0.123345,
        #         "avgPx": 345.33,
        #         "timestamp": 1592830770594
        #     }
        #
        return self.parse_order(response)

    def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
        requestPath = '/' + self.implode_params(path, params)
        url = self.urls['api'][api] + requestPath
        query = self.omit(params, self.extract_params(path))
        if api == 'public':
            if query:
                url += '?' + self.urlencode(query)
        elif api == 'private':
            self.check_required_credentials()
            headers = {
                'X-API-Token': self.secret,
            }
            if (method == 'GET'):
                if query:
                    url += '?' + self.urlencode(query)
            else:
                body = self.json(query)
                headers['Content-Type'] = 'application/json'
        return {'url': url, 'method': method, 'body': body, 'headers': headers}

    def handle_errors(self, code: int, reason: str, url: str, method: str, headers: dict, body: str, response, requestHeaders, requestBody):
        # {"timestamp":"2021-10-21T15:13:58.837+00:00","status":404,"error":"Not Found","message":"","path":"/orders/505050"
        if response is None:
            return None
        text = self.safe_string(response, 'text')
        if text is not None:  # if trade currency account is empty returns 200 with rejected order
            if text == 'Insufficient Balance':
                raise InsufficientFunds(self.id + ' ' + body)
        errorCode = self.safe_string(response, 'status')
        errorMessage = self.safe_string(response, 'error')
        if code is not None:
            feedback = self.id + ' ' + self.json(response)
            self.throw_exactly_matched_exception(self.exceptions['exact'], errorCode, feedback)
            self.throw_broadly_matched_exception(self.exceptions['broad'], errorMessage, feedback)
        return None
