# -*- 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.base.exchange import Exchange
import hashlib
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 OrderNotFound
from ccxt.base.errors import OnMaintenance
from ccxt.base.precise import Precise


class coinone(Exchange):

    def describe(self):
        return self.deep_extend(super(coinone, self).describe(), {
            'id': 'coinone',
            'name': 'CoinOne',
            'countries': ['KR'],  # Korea
            # 'enableRateLimit': False,
            'rateLimit': 667,
            'version': 'v2',
            'has': {
                'cancelOrder': True,
                'CORS': False,
                'createMarketOrder': False,
                'createOrder': True,
                'fetchBalance': True,
                'fetchCurrencies': False,
                'fetchMarkets': True,
                'fetchMyTrades': True,
                'fetchOpenOrders': True,
                'fetchOrder': True,
                'fetchOrderBook': True,
                'fetchTicker': True,
                'fetchTickers': True,
                'fetchTrades': True,
                # https://github.com/ccxt/ccxt/pull/7067
                # the endpoint that should return closed orders actually returns trades
                'fetchClosedOrders': False,
            },
            'urls': {
                'logo': 'https://user-images.githubusercontent.com/1294454/38003300-adc12fba-323f-11e8-8525-725f53c4a659.jpg',
                'api': 'https://api.coinone.co.kr',
                'www': 'https://coinone.co.kr',
                'doc': 'https://doc.coinone.co.kr',
            },
            'requiredCredentials': {
                'apiKey': True,
                'secret': True,
            },
            'api': {
                'public': {
                    'get': [
                        'orderbook/',
                        'trades/',
                        'ticker/',
                    ],
                },
                'private': {
                    'post': [
                        'account/btc_deposit_address/',
                        'account/balance/',
                        'account/daily_balance/',
                        'account/user_info/',
                        'account/virtual_account/',
                        'order/cancel_all/',
                        'order/cancel/',
                        'order/limit_buy/',
                        'order/limit_sell/',
                        'order/complete_orders/',
                        'order/limit_orders/',
                        'order/order_info/',
                        'transaction/auth_number/',
                        'transaction/history/',
                        'transaction/krw/history/',
                        'transaction/btc/',
                        'transaction/coin/',
                    ],
                },
            },
            'fees': {
                'trading': {
                    'tierBased': False,
                    'percentage': True,
                    'taker': 0.002,
                    'maker': 0.002,
                },
            },
            'precision': {
                'price': 4,
                'amount': 4,
                'cost': 8,
            },
            'exceptions': {
                '405': OnMaintenance,  # {"errorCode":"405","status":"maintenance","result":"error"}
                '104': OrderNotFound,  # {"errorCode":"104","errorMsg":"Order id is not exist","result":"error"}
                '108': BadSymbol,  # {"errorCode":"108","errorMsg":"Unknown CryptoCurrency","result":"error"}
                '107': BadRequest,  # {"errorCode":"107","errorMsg":"Parameter error","result":"error"}
            },
        })

    def fetch_markets(self, params={}):
        request = {
            'currency': 'all',
        }
        response = self.publicGetTicker(request)
        result = []
        quoteId = 'krw'
        quote = self.safe_currency_code(quoteId)
        baseIds = list(response.keys())
        for i in range(0, len(baseIds)):
            baseId = baseIds[i]
            ticker = self.safe_value(response, baseId, {})
            currency = self.safe_value(ticker, 'currency')
            if currency is None:
                continue
            base = self.safe_currency_code(baseId)
            result.append({
                'info': ticker,
                'id': baseId,
                'symbol': base + '/' + quote,
                'base': base,
                'quote': quote,
                'baseId': baseId,
                'quoteId': quoteId,
                'active': True,
            })
        return result

    def fetch_balance(self, params={}):
        self.load_markets()
        response = self.privatePostAccountBalance(params)
        result = {'info': response}
        balances = self.omit(response, [
            'errorCode',
            'result',
            'normalWallets',
        ])
        currencyIds = list(balances.keys())
        for i in range(0, len(currencyIds)):
            currencyId = currencyIds[i]
            balance = balances[currencyId]
            code = self.safe_currency_code(currencyId)
            account = self.account()
            account['free'] = self.safe_string(balance, 'avail')
            account['total'] = self.safe_string(balance, 'balance')
            result[code] = account
        return self.parse_balance(result, False)

    def fetch_order_book(self, symbol, limit=None, params={}):
        self.load_markets()
        market = self.market(symbol)
        request = {
            'currency': market['id'],
            'format': 'json',
        }
        response = self.publicGetOrderbook(self.extend(request, params))
        timestamp = self.safe_timestamp(response, 'timestamp')
        return self.parse_order_book(response, symbol, timestamp, 'bid', 'ask', 'price', 'qty')

    def fetch_tickers(self, symbols=None, params={}):
        self.load_markets()
        request = {
            'currency': 'all',
            'format': 'json',
        }
        response = self.publicGetTicker(self.extend(request, params))
        result = {}
        ids = list(response.keys())
        timestamp = self.safe_timestamp(response, 'timestamp')
        for i in range(0, len(ids)):
            id = ids[i]
            symbol = id
            market = None
            if id in self.markets_by_id:
                market = self.markets_by_id[id]
                symbol = market['symbol']
                ticker = response[id]
                result[symbol] = self.parse_ticker(ticker, market)
                result[symbol]['timestamp'] = timestamp
        return self.filter_by_array(result, 'symbol', symbols)

    def fetch_ticker(self, symbol, params={}):
        self.load_markets()
        market = self.market(symbol)
        request = {
            'currency': market['id'],
            'format': 'json',
        }
        response = self.publicGetTicker(self.extend(request, params))
        return self.parse_ticker(response, market)

    def parse_ticker(self, ticker, market=None):
        timestamp = self.safe_timestamp(ticker, 'timestamp')
        first = self.safe_number(ticker, 'first')
        last = self.safe_number(ticker, 'last')
        average = None
        if first is not None and last is not None:
            average = self.sum(first, last) / 2
        previousClose = self.safe_number(ticker, 'yesterday_last')
        change = None
        percentage = None
        if last is not None and previousClose is not None:
            change = last - previousClose
            if previousClose != 0:
                percentage = change / previousClose * 100
        symbol = market['symbol'] if (market is not None) else None
        return {
            'symbol': symbol,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'high': self.safe_number(ticker, 'high'),
            'low': self.safe_number(ticker, 'low'),
            'bid': None,
            'bidVolume': None,
            'ask': None,
            'askVolume': None,
            'vwap': None,
            'open': first,
            'close': last,
            'last': last,
            'previousClose': previousClose,
            'change': change,
            'percentage': percentage,
            'average': average,
            'baseVolume': self.safe_number(ticker, 'volume'),
            'quoteVolume': None,
            'info': ticker,
        }

    def parse_trade(self, trade, market=None):
        #
        # fetchTrades(public)
        #
        #     {
        #         "timestamp": "1416893212",
        #         "price": "420000.0",
        #         "qty": "0.1",
        #         "is_ask": "1"
        #     }
        #
        # fetchMyTrades(private)
        #
        #     {
        #         "timestamp": "1416561032",
        #         "price": "419000.0",
        #         "type": "bid",
        #         "qty": "0.001",
        #         "feeRate": "-0.0015",
        #         "fee": "-0.0000015",
        #         "orderId": "E84A1AC2-8088-4FA0-B093-A3BCDB9B3C85"
        #     }
        #
        timestamp = self.safe_timestamp(trade, 'timestamp')
        symbol = market['symbol'] if (market is not None) else None
        is_ask = self.safe_string(trade, 'is_ask')
        side = self.safe_string(trade, 'type')
        if is_ask is not None:
            if is_ask == '1':
                side = 'sell'
            elif is_ask == '0':
                side = 'buy'
        else:
            if side == 'ask':
                side = 'sell'
            elif side == 'bid':
                side = 'buy'
        priceString = self.safe_string(trade, 'price')
        amountString = self.safe_string(trade, 'qty')
        price = self.parse_number(priceString)
        amount = self.parse_number(amountString)
        cost = self.parse_number(Precise.string_mul(priceString, amountString))
        orderId = self.safe_string(trade, 'orderId')
        feeCost = self.safe_number(trade, 'fee')
        fee = None
        if feeCost is not None:
            feeCost = abs(feeCost)
            feeRate = self.safe_number(trade, 'feeRate')
            feeRate = abs(feeRate)
            feeCurrencyCode = None
            if market is not None:
                feeCurrencyCode = market['quote'] if (side == 'sell') else market['base']
            fee = {
                'cost': feeCost,
                'currency': feeCurrencyCode,
                'rate': feeRate,
            }
        return {
            'id': self.safe_string(trade, 'id'),
            'info': trade,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'order': orderId,
            'symbol': symbol,
            'type': None,
            'side': side,
            'takerOrMaker': None,
            'price': price,
            'amount': amount,
            'cost': cost,
            'fee': fee,
        }

    def fetch_trades(self, symbol, since=None, limit=None, params={}):
        self.load_markets()
        market = self.market(symbol)
        request = {
            'currency': market['id'],
            'format': 'json',
        }
        response = self.publicGetTrades(self.extend(request, params))
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "timestamp": "1416895635",
        #         "currency": "btc",
        #         "completeOrders": [
        #             {
        #                 "timestamp": "1416893212",
        #                 "price": "420000.0",
        #                 "qty": "0.1",
        #                 "is_ask": "1"
        #             }
        #         ]
        #     }
        #
        completeOrders = self.safe_value(response, 'completeOrders', [])
        return self.parse_trades(completeOrders, market, since, limit)

    def create_order(self, symbol, type, side, amount, price=None, params={}):
        if type != 'limit':
            raise ExchangeError(self.id + ' allows limit orders only')
        self.load_markets()
        request = {
            'price': price,
            'currency': self.market_id(symbol),
            'qty': amount,
        }
        method = 'privatePostOrder' + self.capitalize(type) + self.capitalize(side)
        response = getattr(self, method)(self.extend(request, params))
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "orderId": "8a82c561-40b4-4cb3-9bc0-9ac9ffc1d63b"
        #     }
        #
        return self.parse_order(response)

    def fetch_order(self, id, symbol=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchOrder() requires a symbol argument')
        self.load_markets()
        market = self.market(symbol)
        request = {
            'order_id': id,
            'currency': market['id'],
        }
        response = self.privatePostOrderOrderInfo(self.extend(request, params))
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "status": "live",
        #         "info": {
        #             "orderId": "32FF744B-D501-423A-8BA1-05BB6BE7814A",
        #             "currency": "BTC",
        #             "type": "bid",
        #             "price": "2922000.0",
        #             "qty": "115.4950",
        #             "remainQty": "45.4950",
        #             "feeRate": "0.0003",
        #             "fee": "0",
        #             "timestamp": "1499340941"
        #         }
        #     }
        #
        info = self.safe_value(response, 'info', {})
        info['status'] = self.safe_string(info, 'status')
        return self.parse_order(info, market)

    def parse_order_status(self, status):
        statuses = {
            'live': 'open',
            'partially_filled': 'open',
            'filled': 'closed',
        }
        return self.safe_string(statuses, status, status)

    def parse_order(self, order, market=None):
        #
        # createOrder
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "orderId": "8a82c561-40b4-4cb3-9bc0-9ac9ffc1d63b"
        #     }
        #
        # fetchOrder
        #
        #     {
        #         "status": "live",  # injected in fetchOrder
        #         "orderId": "32FF744B-D501-423A-8BA1-05BB6BE7814A",
        #         "currency": "BTC",
        #         "type": "bid",
        #         "price": "2922000.0",
        #         "qty": "115.4950",
        #         "remainQty": "45.4950",
        #         "feeRate": "0.0003",
        #         "fee": "0",
        #         "timestamp": "1499340941"
        #     }
        #
        # fetchOpenOrders
        #
        #     {
        #         "index": "0",
        #         "orderId": "68665943-1eb5-4e4b-9d76-845fc54f5489",
        #         "timestamp": "1449037367",
        #         "price": "444000.0",
        #         "qty": "0.3456",
        #         "type": "ask",
        #         "feeRate": "-0.0015"
        #     }
        #
        id = self.safe_string(order, 'orderId')
        price = self.safe_number(order, 'price')
        timestamp = self.safe_timestamp(order, 'timestamp')
        side = self.safe_string(order, 'type')
        if side == 'ask':
            side = 'sell'
        elif side == 'bid':
            side = 'buy'
        remaining = self.safe_number(order, 'remainQty')
        amount = self.safe_number(order, 'qty')
        status = self.safe_string(order, 'status')
        # https://github.com/ccxt/ccxt/pull/7067
        if status == 'live':
            if (remaining is not None) and (amount is not None):
                if remaining < amount:
                    status = 'canceled'
        status = self.parse_order_status(status)
        symbol = None
        base = None
        quote = None
        marketId = self.safe_string_lower(order, 'currency')
        if marketId is not None:
            if marketId in self.markets_by_id:
                market = self.markets_by_id[marketId]
            else:
                base = self.safe_currency_code(marketId)
                quote = 'KRW'
                symbol = base + '/' + quote
        if (symbol is None) and (market is not None):
            symbol = market['symbol']
            base = market['base']
            quote = market['quote']
        fee = None
        feeCost = self.safe_number(order, 'fee')
        if feeCost is not None:
            feeCurrencyCode = quote if (side == 'sell') else base
            fee = {
                'cost': feeCost,
                'rate': self.safe_number(order, 'feeRate'),
                'currency': feeCurrencyCode,
            }
        return self.safe_order({
            'info': order,
            'id': id,
            'clientOrderId': None,
            'timestamp': timestamp,
            'datetime': self.iso8601(timestamp),
            'lastTradeTimestamp': None,
            'symbol': symbol,
            'type': 'limit',
            'timeInForce': None,
            'postOnly': None,
            'side': side,
            'price': price,
            'stopPrice': None,
            'cost': None,
            'average': None,
            'amount': amount,
            'filled': None,
            'remaining': amount,
            'status': status,
            'fee': fee,
            'trades': None,
        })

    def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
        # The returned amount might not be same as the ordered amount. If an order is partially filled, the returned amount means the remaining amount.
        # For the same reason, the returned amount and remaining are always same, and the returned filled and cost are always zero.
        if symbol is None:
            raise ExchangeError(self.id + ' allows fetching closed orders with a specific symbol')
        self.load_markets()
        market = self.market(symbol)
        request = {
            'currency': market['id'],
        }
        response = self.privatePostOrderLimitOrders(self.extend(request, params))
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "limitOrders": [
        #             {
        #                 "index": "0",
        #                 "orderId": "68665943-1eb5-4e4b-9d76-845fc54f5489",
        #                 "timestamp": "1449037367",
        #                 "price": "444000.0",
        #                 "qty": "0.3456",
        #                 "type": "ask",
        #                 "feeRate": "-0.0015"
        #             }
        #         ]
        #     }
        #
        limitOrders = self.safe_value(response, 'limitOrders', [])
        return self.parse_orders(limitOrders, market, since, limit)

    def fetch_my_trades(self, symbol=None, since=None, limit=None, params={}):
        if symbol is None:
            raise ArgumentsRequired(self.id + ' fetchMyTrades() requires a symbol argument')
        self.load_markets()
        market = self.market(symbol)
        request = {
            'currency': market['id'],
        }
        response = self.privatePostOrderCompleteOrders(self.extend(request, params))
        #
        # despite the name of the endpoint it returns trades which may have a duplicate orderId
        # https://github.com/ccxt/ccxt/pull/7067
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0",
        #         "completeOrders": [
        #             {
        #                 "timestamp": "1416561032",
        #                 "price": "419000.0",
        #                 "type": "bid",
        #                 "qty": "0.001",
        #                 "feeRate": "-0.0015",
        #                 "fee": "-0.0000015",
        #                 "orderId": "E84A1AC2-8088-4FA0-B093-A3BCDB9B3C85"
        #             }
        #         ]
        #     }
        #
        completeOrders = self.safe_value(response, 'completeOrders', [])
        return self.parse_trades(completeOrders, market, since, limit)

    def cancel_order(self, id, symbol=None, params={}):
        if symbol is None:
            # eslint-disable-next-line quotes
            raise ArgumentsRequired(self.id + " cancelOrder() requires a symbol argument. To cancel the order, pass a symbol argument and {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument of cancelOrder.")
        price = self.safe_number(params, 'price')
        qty = self.safe_number(params, 'qty')
        isAsk = self.safe_integer(params, 'is_ask')
        if (price is None) or (qty is None) or (isAsk is None):
            # eslint-disable-next-line quotes
            raise ArgumentsRequired(self.id + " cancelOrder() requires {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument.")
        self.load_markets()
        request = {
            'order_id': id,
            'price': price,
            'qty': qty,
            'is_ask': isAsk,
            'currency': self.market_id(symbol),
        }
        response = self.privatePostOrderCancel(self.extend(request, params))
        #
        #     {
        #         "result": "success",
        #         "errorCode": "0"
        #     }
        #
        return response

    def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
        request = self.implode_params(path, params)
        query = self.omit(params, self.extract_params(path))
        url = self.urls['api'] + '/'
        if api == 'public':
            url += request
            if query:
                url += '?' + self.urlencode(query)
        else:
            self.check_required_credentials()
            url += self.version + '/' + request
            nonce = str(self.nonce())
            json = self.json(self.extend({
                'access_token': self.apiKey,
                'nonce': nonce,
            }, params))
            payload = self.string_to_base64(json)
            body = self.decode(payload)
            secret = self.secret.upper()
            signature = self.hmac(payload, self.encode(secret), hashlib.sha512)
            headers = {
                'Content-Type': 'application/json',
                'X-COINONE-PAYLOAD': payload,
                'X-COINONE-SIGNATURE': signature,
            }
        return {'url': url, 'method': method, 'body': body, 'headers': headers}

    def handle_errors(self, code, reason, url, method, headers, body, response, requestHeaders, requestBody):
        if response is None:
            return
        if 'result' in response:
            result = response['result']
            if result != 'success':
                #
                #    { "errorCode": "405",  "status": "maintenance",  "result": "error"}
                #
                errorCode = self.safe_string(response, 'errorCode')
                feedback = self.id + ' ' + body
                self.throw_exactly_matched_exception(self.exceptions, errorCode, feedback)
                raise ExchangeError(feedback)
        else:
            raise ExchangeError(self.id + ' ' + body)
