# -*- 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.bitbns import ImplicitAPI
import hashlib
from ccxt.base.types import Balances, Currency, Int, Market, Num, Order, OrderBook, OrderSide, OrderType, Str, Strings, Ticker, Tickers, Trade, Transaction
from typing import List
from ccxt.base.errors import ExchangeError
from ccxt.base.errors import ArgumentsRequired
from ccxt.base.errors import BadRequest
from ccxt.base.errors import BadSymbol
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 bitbns(Exchange, ImplicitAPI):

    def describe(self):
        return self.deep_extend(super(bitbns, self).describe(), {
            'id': 'bitbns',
            'name': 'Bitbns',
            'countries': ['IN'],  # India
            'rateLimit': 1000,
            'certified': False,
            'version': 'v2',
            # new metainfo interface
            'has': {
                'CORS': None,
                'spot': True,
                'margin': None,  # has but unimplemented
                'swap': False,
                'future': False,
                'option': None,  # coming soon
                'cancelAllOrders': False,
                'cancelOrder': True,
                'createOrder': True,
                'fetchBalance': True,
                'fetchDepositAddress': True,
                'fetchDeposits': True,
                'fetchFundingHistory': False,
                'fetchFundingRate': False,
                'fetchFundingRateHistory': False,
                'fetchFundingRates': False,
                'fetchIndexOHLCV': False,
                'fetchMarginMode': False,
                'fetchMarkets': True,
                'fetchMarkOHLCV': False,
                'fetchMyTrades': True,
                'fetchOHLCV': False,
                'fetchOpenOrders': True,
                'fetchOrder': True,
                'fetchOrderBook': True,
                'fetchPositionMode': False,
                'fetchPremiumIndexOHLCV': False,
                'fetchStatus': True,
                'fetchTicker': 'emulated',
                'fetchTickers': True,
                'fetchTrades': True,
                'fetchTradingFee': False,
                'fetchTradingFees': False,
                'fetchTransfer': False,
                'fetchTransfers': False,
                'fetchWithdrawal': False,
                'fetchWithdrawals': True,
                'transfer': False,
                'withdraw': False,
            },
            'hostname': 'bitbns.com',
            'urls': {
                'logo': 'https://user-images.githubusercontent.com/1294454/117201933-e7a6e780-adf5-11eb-9d80-98fc2a21c3d6.jpg',
                'api': {
                    'www': 'https://{hostname}',
                    'v1': 'https://api.{hostname}/api/trade/v1',
                    'v2': 'https://api.{hostname}/api/trade/v2',
                },
                'www': 'https://bitbns.com',
                'referral': 'https://ref.bitbns.com/1090961',
                'doc': [
                    'https://bitbns.com/trade/#/api-trading/',
                ],
                'fees': 'https://bitbns.com/fees',
            },
            'api': {
                'www': {
                    'get': [
                        'order/fetchMarkets',
                        'order/fetchTickers',
                        'order/fetchOrderbook',
                        'order/getTickerWithVolume',
                        'exchangeData/ohlc',  # ?coin=${coin_name}&page=${page}
                        'exchangeData/orderBook',
                        'exchangeData/tradedetails',
                    ],
                },
                'v1': {
                    'get': [
                        'platform/status',
                        'tickers',
                        'orderbook/sell/{symbol}',
                        'orderbook/buy/{symbol}',
                    ],
                    'post': [
                        'currentCoinBalance/EVERYTHING',
                        'getApiUsageStatus/USAGE',
                        'getOrderSocketToken/USAGE',
                        'currentCoinBalance/{symbol}',
                        'orderStatus/{symbol}',
                        'depositHistory/{symbol}',
                        'withdrawHistory/{symbol}',
                        'withdrawHistoryAll/{symbol}',
                        'depositHistoryAll/{symbol}',
                        'listOpenOrders/{symbol}',
                        'listOpenStopOrders/{symbol}',
                        'getCoinAddress/{symbol}',
                        'placeSellOrder/{symbol}',
                        'placeBuyOrder/{symbol}',
                        'buyStopLoss/{symbol}',
                        'sellStopLoss/{symbol}',
                        'cancelOrder/{symbol}',
                        'cancelStopLossOrder/{symbol}',
                        'listExecutedOrders/{symbol}',
                        'placeMarketOrder/{symbol}',
                        'placeMarketOrderQnty/{symbol}',
                    ],
                },
                'v2': {
                    'post': [
                        'orders',
                        'cancel',
                        'getordersnew',
                        'marginOrders',
                    ],
                },
            },
            'fees': {
                'trading': {
                    'feeSide': 'quote',
                    'tierBased': False,
                    'percentage': True,
                    'taker': self.parse_number('0.0025'),
                    'maker': self.parse_number('0.0025'),
                },
            },
            'precisionMode': TICK_SIZE,
            'exceptions': {
                'exact': {
                    '400': BadRequest,  # {"msg":"Invalid Request","status":-1,"code":400}
                    '409': BadSymbol,  # {"data":"","status":0,"error":"coin name not supplied or not yet supported","code":409}
                    '416': InsufficientFunds,  # {"data":"Oops ! Not sufficient currency to sell","status":0,"error":null,"code":416}
                    '417': OrderNotFound,  # {"data":[],"status":0,"error":"Nothing to show","code":417}
                },
                'broad': {},
            },
        })

    async def fetch_status(self, params={}):
        """
        the latest known information on the availability of the exchange API
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict: a `status structure <https://docs.ccxt.com/#/?id=exchange-status-structure>`
        """
        response = await self.v1GetPlatformStatus(params)
        #
        #     {
        #         "data":{
        #             "BTC":{"status":1},
        #             "ETH":{"status":1},
        #             "XRP":{"status":1},
        #         },
        #         "status":1,
        #         "error":null,
        #         "code":200
        #     }
        #
        statusRaw = self.safe_string(response, 'status')
        return {
            'status': self.safe_string({'1': 'ok'}, statusRaw, statusRaw),
            'updated': None,
            'eta': None,
            'url': None,
            'info': response,
        }

    async def fetch_markets(self, params={}) -> List[Market]:
        """
        retrieves data on all markets for bitbns
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns dict[]: an array of objects representing market data
        """
        response = await self.wwwGetOrderFetchMarkets(params)
        #
        #     [
        #         {
        #             "id":"BTC",
        #             "symbol":"BTC/INR",
        #             "base":"BTC",
        #             "quote":"INR",
        #             "baseId":"BTC",
        #             "quoteId":"",
        #             "active":true,
        #             "limits":{
        #                 "amount":{"min":"0.00017376","max":20},
        #                 "price":{"min":2762353.2359999996,"max":6445490.883999999},
        #                 "cost":{"min":800,"max":128909817.67999998}
        #             },
        #             "precision":{
        #                 "amount":8,
        #                 "price":2
        #             },
        #             "info":{}
        #         },
        #     ]
        #
        result = []
        for i in range(0, len(response)):
            market = response[i]
            id = self.safe_string(market, 'id')
            baseId = self.safe_string(market, 'base')
            quoteId = self.safe_string(market, 'quote')
            base = self.safe_currency_code(baseId)
            quote = self.safe_currency_code(quoteId)
            marketPrecision = self.safe_value(market, 'precision', {})
            marketLimits = self.safe_value(market, 'limits', {})
            amountLimits = self.safe_value(marketLimits, 'amount', {})
            priceLimits = self.safe_value(marketLimits, 'price', {})
            costLimits = self.safe_value(marketLimits, 'cost', {})
            usdt = (quoteId == 'USDT')
            # INR markets don't need a _INR prefix
            uppercaseId = (baseId + '_' + quoteId) if usdt else baseId
            result.append({
                'id': id,
                'uppercaseId': uppercaseId,
                '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': None,
                'contract': False,
                'linear': None,
                'inverse': None,
                'contractSize': None,
                'expiry': None,
                'expiryDatetime': None,
                'strike': None,
                'optionType': None,
                'precision': {
                    'amount': self.parse_number(self.parse_precision(self.safe_string(marketPrecision, 'amount'))),
                    'price': self.parse_number(self.parse_precision(self.safe_string(marketPrecision, 'price'))),
                },
                'limits': {
                    'leverage': {
                        'min': None,
                        'max': None,
                    },
                    'amount': {
                        'min': self.safe_number(amountLimits, 'min'),
                        'max': self.safe_number(amountLimits, 'max'),
                    },
                    'price': {
                        'min': self.safe_number(priceLimits, 'min'),
                        'max': self.safe_number(priceLimits, 'max'),
                    },
                    'cost': {
                        'min': self.safe_number(costLimits, 'min'),
                        'max': self.safe_number(costLimits, 'max'),
                    },
                },
                'created': None,
                'info': market,
            })
        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
        :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
        """
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
        }
        if limit is not None:
            request['limit'] = limit  # default 100, max 5000, see https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#order-book
        response = await self.wwwGetOrderFetchOrderbook(self.extend(request, params))
        #
        #     {
        #         "bids":[
        #             [49352.04,0.843948],
        #             [49352.03,0.742048],
        #             [49349.78,0.686239],
        #         ],
        #         "asks":[
        #             [49443.59,0.065137],
        #             [49444.63,0.098211],
        #             [49449.01,0.066309],
        #         ],
        #         "timestamp":1619172786577,
        #         "datetime":"2021-04-23T10:13:06.577Z",
        #         "nonce":""
        #     }
        #
        timestamp = self.safe_integer(response, 'timestamp')
        return self.parse_order_book(response, market['symbol'], timestamp)

    def parse_ticker(self, ticker: dict, market: Market = None) -> Ticker:
        #
        #     {
        #         "symbol":"BTC/INR",
        #         "info":{
        #             "highest_buy_bid":4368494.31,
        #             "lowest_sell_bid":4374835.09,
        #             "last_traded_price":4374835.09,
        #             "yes_price":4531016.27,
        #             "volume":{"max":"4569119.23","min":"4254552.13","volume":62.17722344}
        #         },
        #         "timestamp":1619100020845,
        #         "datetime":1619100020845,
        #         "high":"4569119.23",
        #         "low":"4254552.13",
        #         "bid":4368494.31,
        #         "bidVolume":"",
        #         "ask":4374835.09,
        #         "askVolume":"",
        #         "vwap":"",
        #         "open":4531016.27,
        #         "close":4374835.09,
        #         "last":4374835.09,
        #         "baseVolume":62.17722344,
        #         "quoteVolume":"",
        #         "previousClose":"",
        #         "change":-156181.1799999997,
        #         "percentage":-3.446934874943623,
        #         "average":4452925.68
        #     }
        #
        timestamp = self.safe_integer(ticker, 'timestamp')
        marketId = self.safe_string(ticker, 'symbol')
        symbol = self.safe_symbol(marketId, market)
        last = self.safe_string(ticker, 'last')
        return self.safe_ticker({
            'symbol': symbol,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'high': self.safe_string(ticker, 'high'),
            'low': self.safe_string(ticker, 'low'),
            'bid': self.safe_string(ticker, 'bid'),
            'bidVolume': self.safe_string(ticker, 'bidVolume'),
            'ask': self.safe_string(ticker, 'ask'),
            'askVolume': self.safe_string(ticker, 'askVolume'),
            'vwap': self.safe_string(ticker, 'vwap'),
            'open': self.safe_string(ticker, 'open'),
            'close': last,
            'last': last,
            'previousClose': self.safe_string(ticker, 'previousClose'),  # previous day close
            'change': self.safe_string(ticker, 'change'),
            'percentage': self.safe_string(ticker, 'percentage'),
            'average': self.safe_string(ticker, 'average'),
            'baseVolume': self.safe_string(ticker, 'baseVolume'),
            'quoteVolume': self.safe_string(ticker, 'quoteVolume'),
            'info': ticker,
        }, 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
        :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()
        response = await self.wwwGetOrderFetchTickers(params)
        #
        #     {
        #         "BTC/INR":{
        #             "symbol":"BTC/INR",
        #             "info":{
        #                 "highest_buy_bid":4368494.31,
        #                 "lowest_sell_bid":4374835.09,
        #                 "last_traded_price":4374835.09,
        #                 "yes_price":4531016.27,
        #                 "volume":{"max":"4569119.23","min":"4254552.13","volume":62.17722344}
        #             },
        #             "timestamp":1619100020845,
        #             "datetime":1619100020845,
        #             "high":"4569119.23",
        #             "low":"4254552.13",
        #             "bid":4368494.31,
        #             "bidVolume":"",
        #             "ask":4374835.09,
        #             "askVolume":"",
        #             "vwap":"",
        #             "open":4531016.27,
        #             "close":4374835.09,
        #             "last":4374835.09,
        #             "baseVolume":62.17722344,
        #             "quoteVolume":"",
        #             "previousClose":"",
        #             "change":-156181.1799999997,
        #             "percentage":-3.446934874943623,
        #             "average":4452925.68
        #         }
        #     }
        #
        return self.parse_tickers(response, symbols)

    def parse_balance(self, response) -> Balances:
        timestamp = None
        result: dict = {
            'info': response,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
        }
        data = self.safe_value(response, 'data', {})
        keys = list(data.keys())
        for i in range(0, len(keys)):
            key = keys[i]
            parts = key.split('availableorder')
            numParts = len(parts)
            if numParts > 1:
                currencyId = self.safe_string(parts, 1)
                # note that "Money" stands for INR - the only fiat in bitbns
                account = self.account()
                account['free'] = self.safe_string(data, key)
                account['used'] = self.safe_string(data, 'inorder' + currencyId)
                if currencyId == 'Money':
                    currencyId = 'INR'
                code = self.safe_currency_code(currencyId)
                result[code] = account
        return self.safe_balance(result)

    async def fetch_balance(self, params={}) -> Balances:
        """
        query for balance and get the amount of funds available for trading or funds locked in orders
        :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()
        response = await self.v1PostCurrentCoinBalanceEVERYTHING(params)
        #
        #     {
        #         "data":{
        #             "availableorderMoney":12.34,  # INR
        #             "availableorderBTC":0,
        #             "availableorderXRP":0,
        #             "inorderMoney":0,  # INR
        #             "inorderBTC":0,
        #             "inorderXRP":0,
        #             "inorderNEO":0,
        #         },
        #         "status":1,
        #         "error":null,
        #         "code":200
        #     }
        #
        # note that "Money" stands for INR - the only fiat in bitbns
        return self.parse_balance(response)

    def parse_status(self, status):
        statuses: dict = {
            '-1': 'cancelled',
            '0': 'open',
            '1': 'open',
            '2': 'done',
            # 'PARTIALLY_FILLED': 'open',
            # 'FILLED': 'closed',
            # 'CANCELED': 'canceled',
            # 'PENDING_CANCEL': 'canceling',  # currently unused
            # 'REJECTED': 'rejected',
            # 'EXPIRED': 'expired',
        }
        return self.safe_string(statuses, status, status)

    def parse_order(self, order: dict, market: Market = None) -> Order:
        #
        # createOrder
        #
        #     {
        #         "data": "Successfully placed bid to purchase currency",
        #         "status": 1,
        #         "error": null,
        #         "id": 5424475,
        #         "code": 200
        #     }
        #
        # fetchOpenOrders, fetchOrder
        #
        #    {
        #        "entry_id": 5424475,
        #        "btc": 0.01,
        #        "rate": 2000,
        #        "time": "2021-04-25T17:05:42.000Z",
        #        "type": 0,
        #        "status": 0
        #        "t_rate": 0.45,                       # only stop orders
        #        "trail": 0                            # only stop orders
        #    }
        #
        # cancelOrder
        #
        #    {
        #        "data": "Successfully cancelled the order",
        #        "status": 1,
        #        "error": null,
        #        "code": 200
        #    }
        #
        id = self.safe_string_2(order, 'id', 'entry_id')
        datetime = self.safe_string(order, 'time')
        triggerPrice = self.safe_string(order, 't_rate')
        side = self.safe_string(order, 'type')
        if side == '0':
            side = 'buy'
        elif side == '1':
            side = 'sell'
        data = self.safe_string(order, 'data')
        status = self.safe_string(order, 'status')
        if data == 'Successfully cancelled the order':
            status = 'cancelled'
        else:
            status = self.parse_status(status)
        return self.safe_order({
            'info': order,
            'id': id,
            'clientOrderId': None,
            'timestamp': self.parse8601(datetime),
            'datetime': datetime,
            'lastTradeTimestamp': None,
            'symbol': self.safe_string(market, 'symbol'),
            'timeInForce': None,
            'postOnly': None,
            'side': side,
            'price': self.safe_string(order, 'rate'),
            'stopPrice': triggerPrice,
            'triggerPrice': triggerPrice,
            'amount': self.safe_string(order, 'btc'),
            'cost': None,
            'average': None,
            'filled': None,
            'remaining': None,
            'status': status,
            'fee': {
                'cost': None,
                'currency': None,
                'rate': None,
            },
            'trades': None,
        }, market)

    async def create_order(self, symbol: str, type: OrderType, side: OrderSide, amount: float, price: Num = None, params={}):
        """
        create a trade order
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-2/place-orders
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-1/market-orders-quantity  # market orders
        :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
        :param float [params.triggerPrice]: the price at which a trigger order is triggered at
         *
         * EXCHANGE SPECIFIC PARAMETERS
        :param float [params.target_rate]: *requires params.trail_rate when set, type must be 'limit'* a bracket order is placed when set
        :param float [params.trail_rate]: *requires params.target_rate when set, type must be 'limit'* a bracket order is placed when set
        :returns dict: an `order structure <https://docs.ccxt.com/#/?id=order-structure>`
        """
        await self.load_markets()
        market = self.market(symbol)
        triggerPrice = self.safe_string_n(params, ['triggerPrice', 'stopPrice', 't_rate'])
        targetRate = self.safe_string(params, 'target_rate')
        trailRate = self.safe_string(params, 'trail_rate')
        params = self.omit(params, ['triggerPrice', 'stopPrice', 'trail_rate', 'target_rate', 't_rate'])
        request: dict = {
            'side': side.upper(),
            'symbol': market['uppercaseId'],
            'quantity': self.amount_to_precision(symbol, amount),
            # 'target_rate': self.price_to_precision(symbol, targetRate),
            # 't_rate': self.price_to_precision(symbol, stopPrice),
            # 'trail_rate': self.price_to_precision(symbol, trailRate),
        }
        method = 'v2PostOrders'
        if type == 'limit':
            request['rate'] = self.price_to_precision(symbol, price)
        else:
            method = 'v1PostPlaceMarketOrderQntySymbol'
            request['market'] = market['quoteId']
        if triggerPrice is not None:
            request['t_rate'] = self.price_to_precision(symbol, triggerPrice)
        if targetRate is not None:
            request['target_rate'] = self.price_to_precision(symbol, targetRate)
        if trailRate is not None:
            request['trail_rate'] = self.price_to_precision(symbol, trailRate)
        response = await getattr(self, method)(self.extend(request, params))
        #
        #     {
        #         "data":"Successfully placed bid to purchase currency",
        #         "status":1,
        #         "error":null,
        #         "id":5424475,
        #         "code":200
        #     }
        #
        return self.parse_order(response, market)

    async def cancel_order(self, id: str, symbol: Str = None, params={}):
        """
        cancels an open order
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-2/cancel-orders
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-1/cancel-stop-loss-orders
        :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
        :param boolean [params.trigger]: True if cancelling a trigger order
        :returns dict: An `order structure <https://docs.ccxt.com/#/?id=order-structure>`
        """
        if symbol is None:
            raise ArgumentsRequired(self.id + ' cancelOrder() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        isTrigger = self.safe_value_2(params, 'trigger', 'stop')
        params = self.omit(params, ['trigger', 'stop'])
        request: dict = {
            'entry_id': id,
            'symbol': market['uppercaseId'],
        }
        response = None
        tail = 'StopLossOrder' if isTrigger else 'Order'
        quoteSide = 'usdtcancel' if (market['quoteId'] == 'USDT') else 'cancel'
        quoteSide += tail
        request['side'] = quoteSide
        response = await self.v2PostCancel(self.extend(request, params))
        return self.parse_order(response, market)

    async def fetch_order(self, id: str, symbol: Str = None, params={}):
        """
        fetches information on an order made by the user
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-1/order-status
        :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>`
        """
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOrder() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
            'entry_id': id,
        }
        trigger = self.safe_value_2(params, 'trigger', 'stop')
        if trigger:
            raise BadRequest(self.id + ' fetchOrder cannot fetch stop orders')
        response = await self.v1PostOrderStatusSymbol(self.extend(request, params))
        #
        #     {
        #         "data":[
        #             {
        #                 "entry_id":5424475,
        #                 "btc":0.01,
        #                 "rate":2000,
        #                 "time":"2021-04-25T17:05:42.000Z",
        #                 "type":0,
        #                 "status":0,
        #                 "total":0.01,
        #                 "avg_cost":null,
        #                 "side":"BUY",
        #                 "amount":0.01,
        #                 "remaining":0.01,
        #                 "filled":0,
        #                 "cost":null,
        #                 "fee":0.05
        #             }
        #         ],
        #         "status":1,
        #         "error":null,
        #         "code":200
        #     }
        #
        data = self.safe_value(response, 'data', [])
        first = self.safe_dict(data, 0)
        return self.parse_order(first, market)

    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://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-2/order-status-limit
        :see: https://docs.bitbns.com/bitbns/rest-endpoints/order-apis/version-2/order-status-limit/order-status-stop-limit
        :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
        :param boolean [params.trigger]: True if fetching trigger orders
        :returns Order[]: a list of `order structures <https://docs.ccxt.com/#/?id=order-structure>`
        """
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOpenOrders() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        isTrigger = self.safe_value_2(params, 'trigger', 'stop')
        params = self.omit(params, ['trigger', 'stop'])
        quoteSide = 'usdtListOpen' if (market['quoteId'] == 'USDT') else 'listOpen'
        request: dict = {
            'symbol': market['uppercaseId'],
            'page': 0,
            'side': (quoteSide + 'StopOrders') if isTrigger else (quoteSide + 'Orders'),
        }
        response = await self.v2PostGetordersnew(self.extend(request, params))
        #
        #     {
        #         "data":[
        #             {
        #                 "entry_id":5424475,
        #                 "btc":0.01,
        #                 "rate":2000,
        #                 "time":"2021-04-25T17:05:42.000Z",
        #                 "type":0,
        #                 "status":0
        #                 "t_rate":0.45,                       # only stop orders
        #                 "type":1,                            # only stop orders
        #                 "trail":0                            # only stop orders
        #             }
        #         ],
        #         "status":1,
        #         "error":null,
        #         "code":200
        #     }
        #
        data = self.safe_list(response, 'data', [])
        return self.parse_orders(data, market, since, limit)

    def parse_trade(self, trade: dict, market: Market = None) -> Trade:
        #
        # fetchMyTrades
        #
        #     {
        #         "type": "BTC Sell order executed",
        #         "typeI": 6,
        #         "crypto": 5000,
        #         "amount": 35.4,
        #         "rate": 709800,
        #         "date": "2020-05-22T15:05:34.000Z",
        #         "unit": "INR",
        #         "factor": 100000000,
        #         "fee": 0.09,
        #         "delh_btc": -5000,
        #         "delh_inr": 0,
        #         "del_btc": 0,
        #         "del_inr": 35.4,
        #         "id": "2938823"
        #     }
        #
        # fetchTrades
        #
        #     {
        #         "tradeId":"1909151",
        #         "price":"61904.6300",
        #         "quote_volume":1618.05,
        #         "base_volume":0.02607254,
        #         "timestamp":1634548602000,
        #         "type":"buy"
        #     }
        #
        market = self.safe_market(None, market)
        orderId = self.safe_string_2(trade, 'id', 'tradeId')
        timestamp = self.parse8601(self.safe_string(trade, 'date'))
        timestamp = self.safe_integer(trade, 'timestamp', timestamp)
        priceString = self.safe_string_2(trade, 'rate', 'price')
        amountString = self.safe_string(trade, 'amount')
        side = self.safe_string_lower(trade, 'type')
        if side is not None:
            if side.find('buy') >= 0:
                side = 'buy'
            elif side.find('sell') >= 0:
                side = 'sell'
        factor = self.safe_string(trade, 'factor')
        costString = None
        if factor is not None:
            amountString = Precise.string_div(amountString, factor)
        else:
            amountString = self.safe_string(trade, 'base_volume')
            costString = self.safe_string(trade, 'quote_volume')
        symbol = market['symbol']
        fee = None
        feeCostString = self.safe_string(trade, 'fee')
        if feeCostString is not None:
            feeCurrencyCode = market['quote']
            fee = {
                'cost': feeCostString,
                'currency': feeCurrencyCode,
            }
        return self.safe_trade({
            'info': trade,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'symbol': symbol,
            'id': orderId,
            'order': orderId,
            'type': None,
            'side': side,
            'takerOrMaker': None,
            'price': priceString,
            'amount': amountString,
            'cost': costString,
            'fee': fee,
        }, market)

    async def fetch_my_trades(self, symbol: Str = None, since: Int = None, limit: Int = None, params={}):
        """
        fetch all trades made by the user
        :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>`
        """
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchMyTrades() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'symbol': market['id'],
            'page': 0,
        }
        if since is not None:
            request['since'] = self.iso8601(since)
        response = await self.v1PostListExecutedOrdersSymbol(self.extend(request, params))
        #
        #     {
        #         "data": [
        #             {
        #                 "type": "BTC Sell order executed",
        #                 "typeI": 6,
        #                 "crypto": 5000,
        #                 "amount": 35.4,
        #                 "rate": 709800,
        #                 "date": "2020-05-22T15:05:34.000Z",
        #                 "unit": "INR",
        #                 "factor": 100000000,
        #                 "fee": 0.09,
        #                 "delh_btc": -5000,
        #                 "delh_inr": 0,
        #                 "del_btc": 0,
        #                 "del_inr": 35.4,
        #                 "id": "2938823"
        #             },
        #             {
        #                 "type": "BTC Sell order executed",
        #                 "typeI": 6,
        #                 "crypto": 195000,
        #                 "amount": 1380.58,
        #                 "rate": 709765.5,
        #                 "date": "2020-05-22T15:05:34.000Z",
        #                 "unit": "INR",
        #                 "factor": 100000000,
        #                 "fee": 3.47,
        #                 "delh_btc": -195000,
        #                 "delh_inr": 0,
        #                 "del_btc": 0,
        #                 "del_inr": 1380.58,
        #                 "id": "2938823"
        #             }
        #         ],
        #         "status": 1,
        #         "error": null,
        #         "code": 200
        #     }
        #
        data = self.safe_list(response, 'data', [])
        return self.parse_trades(data, market, since, limit)

    async def fetch_trades(self, symbol: str, since: Int = None, limit: Int = None, params={}) -> List[Trade]:
        """
        get the list of most recent trades for a particular symbol
        :param str symbol: unified symbol of the market to fetch trades for
        :param int [since]: timestamp in ms of the earliest trade to fetch
        :param int [limit]: the maximum amount of trades to fetch
        :param dict [params]: extra parameters specific to the exchange API endpoint
        :returns Trade[]: a list of `trade structures <https://docs.ccxt.com/#/?id=public-trades>`
        """
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchTrades() requires a symbol argument')
        await self.load_markets()
        market = self.market(symbol)
        request: dict = {
            'coin': market['baseId'],
            'market': market['quoteId'],
        }
        response = await self.wwwGetExchangeDataTradedetails(self.extend(request, params))
        #
        #     [
        #         {"tradeId":"1909151","price":"61904.6300","quote_volume":1618.05,"base_volume":0.02607254,"timestamp":1634548602000,"type":"buy"},
        #         {"tradeId":"1909153","price":"61893.9000","quote_volume":16384.42,"base_volume":0.26405767,"timestamp":1634548999000,"type":"sell"},
        #         {"tradeId":"1909155","price":"61853.1100","quote_volume":2304.37,"base_volume":0.03716263,"timestamp":1634549670000,"type":"sell"}
        #     }
        #
        return self.parse_trades(response, market, since, limit)

    async def fetch_deposits(self, code: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Transaction]:
        """
        fetch all deposits made to an account
        :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>`
        """
        if code is None:
            raise ArgumentsRequired(self.id + ' fetchDeposits() requires a currency code argument')
        await self.load_markets()
        currency = self.currency(code)
        request: dict = {
            'symbol': currency['id'],
            'page': 0,
        }
        response = await self.v1PostDepositHistorySymbol(self.extend(request, params))
        #
        #     {
        #         "data":[
        #             {
        #                 "type":"USDT deposited",
        #                 "typeI":1,
        #                 "amount":100,
        #                 "date":"2021-04-24T14:56:04.000Z",
        #                 "unit":"USDT",
        #                 "factor":100,
        #                 "fee":0,
        #                 "delh_btc":0,
        #                 "delh_inr":0,
        #                 "rate":0,
        #                 "del_btc":10000,
        #                 "del_inr":0
        #             }
        #         ],
        #         "status":1,
        #         "error":null,
        #         "code":200
        #     }
        #
        data = self.safe_list(response, 'data', [])
        return self.parse_transactions(data, currency, since, limit)

    async def fetch_withdrawals(self, code: Str = None, since: Int = None, limit: Int = None, params={}) -> List[Transaction]:
        """
        fetch all withdrawals made from an account
        :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>`
        """
        if code is None:
            raise ArgumentsRequired(self.id + ' fetchWithdrawals() requires a currency code argument')
        await self.load_markets()
        currency = self.currency(code)
        request: dict = {
            'symbol': currency['id'],
            'page': 0,
        }
        response = await self.v1PostWithdrawHistorySymbol(self.extend(request, params))
        #
        #     ...
        #
        data = self.safe_list(response, 'data', [])
        return self.parse_transactions(data, currency, since, limit)

    def parse_transaction_status_by_type(self, status, type=None):
        statusesByType: dict = {
            'deposit': {
                '0': 'pending',
                '1': 'ok',
            },
            'withdrawal': {
                '0': 'pending',  # Email Sent
                '1': 'canceled',  # Cancelled(different from 1 = ok in deposits)
                '2': 'pending',  # Awaiting Approval
                '3': 'failed',  # Rejected
                '4': 'pending',  # Processing
                '5': 'failed',  # Failure
                '6': 'ok',  # Completed
            },
        }
        statuses = self.safe_value(statusesByType, type, {})
        return self.safe_string(statuses, status, status)

    def parse_transaction(self, transaction: dict, currency: Currency = None) -> Transaction:
        #
        # fetchDeposits
        #
        #     {
        #         "type":"USDT deposited",
        #         "typeI":1,
        #         "amount":100,
        #         "date":"2021-04-24T14:56:04.000Z",
        #         "unit":"USDT",
        #         "factor":100,
        #         "fee":0,
        #         "delh_btc":0,
        #         "delh_inr":0,
        #         "rate":0,
        #         "del_btc":10000,
        #         "del_inr":0
        #     }
        #
        # fetchWithdrawals
        #
        #     ...
        #
        currencyId = self.safe_string(transaction, 'unit')
        code = self.safe_currency_code(currencyId, currency)
        timestamp = self.parse8601(self.safe_string_2(transaction, 'date', 'timestamp'))
        type = self.safe_string(transaction, 'type')
        expTime = self.safe_string(transaction, 'expTime', '')
        status = None
        if type is not None:
            if type.find('deposit') >= 0:
                type = 'deposit'
                status = 'ok'
            elif type.find('withdraw') >= 0 or expTime.find('withdraw') >= 0:
                type = 'withdrawal'
        # status = self.parse_transaction_status_by_type(self.safe_string(transaction, 'status'), type)
        amount = self.safe_number(transaction, 'amount')
        feeCost = self.safe_number(transaction, 'fee')
        fee = None
        if feeCost is not None:
            fee = {'currency': code, 'cost': feeCost}
        return {
            'info': transaction,
            'id': None,
            'txid': None,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'network': None,
            'address': None,
            'addressTo': None,
            'addressFrom': None,
            'tag': None,
            'tagTo': None,
            'tagFrom': None,
            'type': type,
            'amount': amount,
            'currency': code,
            'status': status,
            'updated': None,
            'comment': None,
            'internal': None,
            'fee': fee,
        }

    async def fetch_deposit_address(self, code: str, params={}):
        """
        fetch the deposit address for a currency associated with self account
        :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 = {
            'symbol': currency['id'],
        }
        response = await self.v1PostGetCoinAddressSymbol(self.extend(request, params))
        #
        #     {
        #         "data":{
        #             "token":"0x680dee9edfff0c397736e10b017cf6a0aee4ba31",
        #             "expiry":"2022-04-24 22:30:11"
        #         },
        #         "status":1,
        #         "error":null
        #     }
        #
        data = self.safe_value(response, 'data', {})
        address = self.safe_string(data, 'token')
        tag = self.safe_string(data, 'tag')
        self.check_address(address)
        return {
            'currency': code,
            'address': address,
            'tag': tag,
            'network': None,
            'info': response,
        }

    def nonce(self):
        return self.milliseconds()

    def sign(self, path, api='www', method='GET', params={}, headers=None, body=None):
        urls = self.urls
        if not (api in urls['api']):
            raise ExchangeError(self.id + ' does not have a testnet/sandbox URL for ' + api + ' endpoints')
        if api != 'www':
            self.check_required_credentials()
            headers = {
                'X-BITBNS-APIKEY': self.apiKey,
            }
        baseUrl = self.implode_hostname(self.urls['api'][api])
        url = baseUrl + '/' + self.implode_params(path, params)
        query = self.omit(params, self.extract_params(path))
        nonce = str(self.nonce())
        if method == 'GET':
            if query:
                url += '?' + self.urlencode(query)
        elif method == 'POST':
            if query:
                body = self.json(query)
            else:
                body = '{}'
            auth: dict = {
                'timeStamp_nonce': nonce,
                'body': body,
            }
            payload = self.string_to_base64(self.json(auth))
            signature = self.hmac(self.encode(payload), self.encode(self.secret), hashlib.sha512)
            headers['X-BITBNS-PAYLOAD'] = payload
            headers['X-BITBNS-SIGNATURE'] = signature
            headers['Content-Type'] = 'application/x-www-form-urlencoded'
        return {'url': url, 'method': method, 'body': body, 'headers': headers}

    def handle_errors(self, httpCode: int, reason: str, url: str, method: str, headers: dict, body: str, response, requestHeaders, requestBody):
        if response is None:
            return None  # fallback to default error handler
        #
        #     {"msg":"Invalid Request","status":-1,"code":400}
        #     {"data":[],"status":0,"error":"Nothing to show","code":417}
        #
        code = self.safe_string(response, 'code')
        message = self.safe_string(response, 'msg')
        error = (code is not None) and (code != '200') and (code != '204')
        if error or (message is not None):
            feedback = self.id + ' ' + body
            self.throw_exactly_matched_exception(self.exceptions['exact'], code, feedback)
            self.throw_exactly_matched_exception(self.exceptions['exact'], message, feedback)
            self.throw_broadly_matched_exception(self.exceptions['broad'], message, feedback)
            raise ExchangeError(feedback)  # unknown message
        return None
