ccxt-pro 4.5.78

// 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

#![allow(unused, non_snake_case, clippy::all)]
use crate::Value;
use crate::get_value;
use crate::runtime::*;
// Base methods are now trait methods (review #1: static dispatch). Bring the
// traits into scope so `self.market(...)`, `self.safe_market(...)`,
// `self.load_markets(...)`, … on this Core resolve to the base defaults.
use crate::exchange_generated::ExchangeBase;
use crate::exchange::ExchangeRuntime;
use crate::pro::*;


pub struct BittradeCore {
    pub parent: crate::exchanges::bittrade::BittradeCore,
}

impl BittradeCore {
    pub fn new(config: Option<crate::Value>) -> Self {
        let mut s = Self { parent: crate::exchanges::bittrade::BittradeCore::new(config) };
        s.init();
        s
    }

    pub fn init(&mut self) {
        let described = BittradeCore::describe(self);
        self.initialize_properties(described);
        <Self as crate::exchange_generated::ExchangeBase>::after_construct(self);
    }

    /// Compatibility no-op. The old pointer-based dispatch needed a post-move
    /// `bind()`; static trait dispatch (review #1) needs no binding, so this
    /// just exists so callers that still call it keep compiling.
    #[inline]
    pub fn bind(&mut self) {}
}

impl crate::exchange::DerivedExchange for BittradeCore {
    fn nonce(&self, ) -> crate::Value {
        crate::exchange::DerivedExchange::nonce(&self.parent)
    }
    fn parse_ticker(&self, ticker: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_ticker(&self.parent, ticker, market)
    }
    fn parse_trade(&self, trade: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_trade(&self.parent, trade, market)
    }
    fn parse_order(&self, order: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_order(&self.parent, order, market)
    }
    fn parse_market(&self, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_market(&self.parent, market)
    }
    fn parse_ohlcv(&self, ohlcv: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_ohlcv(&self.parent, ohlcv, market)
    }
    fn parse_order_book(&self, ob: crate::Value, symbol: crate::Value, ts: crate::Value, bk: crate::Value, ak: crate::Value, pk: crate::Value, ak2: crate::Value, ck: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_order_book(&self.parent, ob, symbol, ts, bk, ak, pk, ak2, ck)
    }
    fn parse_balance(&self, response: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_balance(&self.parent, response)
    }
    fn parse_position(&self, position: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_position(&self.parent, position, market)
    }
    fn parse_funding_rate(&self, rate: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_funding_rate(&self.parent, rate, market)
    }
    fn parse_deposit(&self, tx: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_deposit(&self.parent, tx, currency)
    }
    fn parse_deposit_address(&self, depositAddress: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_deposit_address(&self.parent, depositAddress, currency)
    }
    fn parse_last_price(&self, entry: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_last_price(&self.parent, entry, market)
    }
    fn parse_withdrawal(&self, tx: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_withdrawal(&self.parent, tx, currency)
    }
    fn parse_ledger_entry(&self, entry: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_ledger_entry(&self.parent, entry, currency)
    }
    fn parse_transfer(&self, transfer: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_transfer(&self.parent, transfer, currency)
    }
    fn parse_currency(&self, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_currency(&self.parent, currency)
    }
    fn parse_bid_ask(&self, bidask: crate::Value, price_key: crate::Value, amount_key: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_bid_ask(&self.parent, bidask, price_key, amount_key, market)
    }
    fn parse_open_interest(&self, interest: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_open_interest(&self.parent, interest, market)
    }
    fn parse_liquidation(&self, liquidation: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_liquidation(&self.parent, liquidation, market)
    }
    fn parse_funding_rate_history(&self, entry: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_funding_rate_history(&self.parent, entry, market)
    }
    fn parse_margin_modification(&self, data: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_margin_modification(&self.parent, data, market)
    }
    fn parse_account(&self, account: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_account(&self.parent, account)
    }
    fn parse_my_trade(&self, trade: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_my_trade(&self.parent, trade, market)
    }
    fn parse_transaction(&self, transaction: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_transaction(&self.parent, transaction, currency)
    }
    fn parse_borrow_interest(&self, info: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_borrow_interest(&self.parent, info, market)
    }
    fn parse_adl_rank(&self, info: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_adl_rank(&self.parent, info, market)
    }
    fn parse_income(&self, info: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_income(&self.parent, info, market)
    }
    fn parse_greeks(&self, greeks: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_greeks(&self.parent, greeks, market)
    }
    fn parse_margin_mode(&self, margin_mode: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_margin_mode(&self.parent, margin_mode, market)
    }
    fn parse_conversion(&self, conversion: crate::Value, from_currency: crate::Value, to_currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_conversion(&self.parent, conversion, from_currency, to_currency)
    }
    fn parse_borrow_rate(&self, info: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_borrow_rate(&self.parent, info, currency)
    }
    fn parse_leverage(&self, leverage: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_leverage(&self.parent, leverage, market)
    }
    fn parse_market_leverage_tiers(&self, info: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_market_leverage_tiers(&self.parent, info, market)
    }
    fn parse_deposit_withdraw_fee(&self, fee: crate::Value, currency: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_deposit_withdraw_fee(&self.parent, fee, currency)
    }
    fn parse_prediction_trade(&self, trade: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_prediction_trade(&self.parent, trade, market)
    }
    fn parse_prediction_order(&self, order: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_prediction_order(&self.parent, order, market)
    }
    fn parse_prediction_position(&self, position: crate::Value, market: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::parse_prediction_position(&self.parent, position, market)
    }
    fn create_expired_option_market(&self, symbol: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::create_expired_option_market(&self.parent, symbol)
    }
    fn sign(&self, path: crate::Value, api: crate::Value, method: crate::Value, params: crate::Value, headers: crate::Value, body: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::sign(&self.parent, path, api, method, params, headers, body)
    }
    fn handle_errors(&self, code: crate::Value, reason: crate::Value, url: crate::Value, method: crate::Value, headers: crate::Value, body: crate::Value, response: crate::Value, request_headers: crate::Value, request_body: crate::Value) -> crate::Value {
        crate::exchange::DerivedExchange::handle_errors(&self.parent, code, reason, url, method, headers, body, response, request_headers, request_body)
    }
}

impl crate::exchange_generated::ExchangeBase for BittradeCore {
    fn call_dynamic<'a>(&'a mut self, method: &'a str, args: Vec<crate::Value>)
        -> std::pin::Pin<Box<dyn std::future::Future<Output = crate::Value> + Send + 'a>>
    {
        Box::pin(async move {
            match method {
                "handle_error_message" => self.handle_error_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
                "handle_message" => { self.handle_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
                "handle_order_book_message" => self.handle_order_book_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null), args.get(2).cloned().unwrap_or(crate::Value::Null)),
                "handle_subscription_status" => self.handle_subscription_status(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
                "handle_system_status" => self.handle_system_status(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
                "handle_ticker" => self.handle_ticker(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
                "handle_trades" => self.handle_trades(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
                "pong" => self.pong(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)).await,
                "request_id" => self.request_id(),
                "watch_ohlcv" => self.watch_ohlcv(args.get(0).cloned().unwrap_or(crate::Value::Null), &args.get(1..).unwrap_or(&[]).to_vec()[..]).await,
                "watch_order_book" => self.watch_order_book(args.get(0).cloned().unwrap_or(crate::Value::Null), &args.get(1..).unwrap_or(&[]).to_vec()[..]).await,
                "watch_order_book_snapshot" => self.watch_order_book_snapshot(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null), args.get(2).cloned().unwrap_or(crate::Value::Null)).await,
                "watch_ticker" => self.watch_ticker(args.get(0).cloned().unwrap_or(crate::Value::Null), &args.get(1..).unwrap_or(&[]).to_vec()[..]).await,
                "watch_trades" => self.watch_trades(args.get(0).cloned().unwrap_or(crate::Value::Null), &args.get(1..).unwrap_or(&[]).to_vec()[..]).await,
                // Go-style inheritance: an un-overridden method dispatches to the parent core.
                _ => crate::exchange_generated::ExchangeBase::call_dynamic(&mut self.parent, method, args).await,
            }
        })
    }
}
impl BittradeCore {
    /// Synchronous WS handler dispatch — routes a handler-name string (from the
    /// venue's handle_message dispatch table) to the real handler method.
    #[allow(dead_code, unreachable_patterns, clippy::all)]
    pub fn dispatch_ws_handler(&mut self, __name: &crate::Value, args: &[crate::Value]) -> crate::Value {
        let __n = match __name { crate::Value::Str(s) => s.as_str(), _ => return crate::Value::Null };
        match __n {
            "handle_delta" => { self.handle_delta(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_deltas" => { self.handle_deltas(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_error_message" => self.handle_error_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
            "handle_message" => { self.handle_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_ohlcv" => { self.handle_ohlcv(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_order_book" => { self.handle_order_book(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_order_book_message" => self.handle_order_book_message(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null), args.get(2).cloned().unwrap_or(crate::Value::Null)),
            "handle_order_book_snapshot" => { self.handle_order_book_snapshot(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null), args.get(2).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_order_book_subscription" => { self.handle_order_book_subscription(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null), args.get(2).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_ping" => { self.handle_ping(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_subject" => { self.handle_subject(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)); crate::Value::Null },
            "handle_subscription_status" => self.handle_subscription_status(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
            "handle_system_status" => self.handle_system_status(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
            "handle_ticker" => self.handle_ticker(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
            "handle_trades" => self.handle_trades(args.get(0).cloned().unwrap_or(crate::Value::Null), args.get(1).cloned().unwrap_or(crate::Value::Null)),
            "pong" => { crate::exchange_stubs::enqueue_spawn("pong", args.to_vec()); crate::Value::Null },
            "request_id" => self.request_id(),
            "watch_ohlcv" => { crate::exchange_stubs::enqueue_spawn("watch_ohlcv", args.to_vec()); crate::Value::Null },
            "watch_order_book" => { crate::exchange_stubs::enqueue_spawn("watch_order_book", args.to_vec()); crate::Value::Null },
            "watch_order_book_snapshot" => { crate::exchange_stubs::enqueue_spawn("watch_order_book_snapshot", args.to_vec()); crate::Value::Null },
            "watch_ticker" => { crate::exchange_stubs::enqueue_spawn("watch_ticker", args.to_vec()); crate::Value::Null },
            "watch_trades" => { crate::exchange_stubs::enqueue_spawn("watch_trades", args.to_vec()); crate::Value::Null },
            _ => crate::Value::Null,
        }
    }
}

impl std::ops::Deref for BittradeCore {
    type Target = crate::exchange::Exchange;
    fn deref(&self) -> &crate::exchange::Exchange { std::ops::Deref::deref(&self.parent) }
}

impl std::ops::DerefMut for BittradeCore {
    fn deref_mut(&mut self) -> &mut crate::exchange::Exchange { std::ops::DerefMut::deref_mut(&mut self.parent) }
}

impl BittradeCore {
    pub fn describe(&self) -> Value {
        return self.deep_extend(self.parent.describe(), &[Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("has".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("ws".to_string(), Value::Bool(true));
        m.insert("watchOrderBook".to_string(), Value::Bool(true));
        m.insert("watchTickers".to_string(), Value::Bool(false));
        m.insert("watchTicker".to_string(), Value::Bool(true));
        m.insert("watchTrades".to_string(), Value::Bool(true));
        m.insert("watchTradesForSymbols".to_string(), Value::Bool(false));
        m.insert("watchBalance".to_string(), Value::Bool(false));
        m.insert("watchOHLCV".to_string(), Value::Bool(true));
    m
}));
        m.insert("urls".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("api".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("ws".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("api".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("public".to_string(), Value::Str("wss://{hostname}/ws".to_string()));
        m.insert("private".to_string(), Value::Str("wss://{hostname}/ws/v2".to_string()));
    m
}));
    m
}));
    m
}));
    m
}));
        m.insert("options".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("tradesLimit".to_string(), Value::Int(1000));
        m.insert("OHLCVLimit".to_string(), Value::Int(1000));
        m.insert("api".to_string(), Value::Str("api".to_string()));
        m.insert("ws".to_string(), Value::Map({
    let mut m = indexmap::IndexMap::new();
        m.insert("gunzip".to_string(), Value::Bool(true));
    m
}));
    m
}));
    m
})]);

    Value::Null
}

    pub fn request_id(&mut self) -> Value {
        self.lock_id(&[]);
        let mut requestId: Value = self.sum(&[self.safe_integer_k(self.options.clone(), "requestId", &[Value::Int(0)]), Value::Int(1)]);
        add_element_to_object(&mut self.options, &Value::Str("requestId".to_string()), requestId.clone());
        self.unlock_id(&[]);
        return to_string_val(&requestId);

    Value::Null
}

/*
 * @method
 * @name bittrade#watchTicker
 * @description watches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
 * @param {string} symbol unified symbol of the market to fetch the ticker for
 * @param {object} [params] extra parameters specific to the exchange API endpoint
 * @returns {object} a [ticker structure]{@link https://docs.ccxt.com/?id=ticker-structure}
 */
    pub async fn watch_ticker(&mut self, mut symbol: Value, optional_args: &[Value]) -> Value {
        let mut params = get_arg(optional_args, 0, Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
}));
        if is_equal(&self.markets, &Value::Null) {
            self.load_markets(&[]).await;
        }
        let mut market: Value = self.market(symbol.clone());
        symbol = get_value(&market, &Value::Str("symbol".to_string()));
        // only supports a limit of 150 at this time
        let mut messageHash: Value = add(&add(&Value::Str("market.".to_string()), &get_value(&market, &Value::Str("id".to_string()))), &Value::Str(".detail".to_string()));
        let mut api: Value = self.safe_string_k(self.options.clone(), "api", &[Value::Str("api".to_string())]);
        let mut hostname: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("hostname".to_string(), self.hostname.clone());
            m
        });
        let mut url: Value = self.implode_params(get_value(&get_value(&get_value(&get_value(&self.urls, &Value::Str("api".to_string())), &Value::Str("ws".to_string())), &api), &Value::Str("public".to_string())), hostname.clone());
        let mut requestId: Value = self.request_id();
        let mut request: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("sub".to_string(), messageHash.clone());
                m.insert("id".to_string(), requestId.clone());
            m
        });
        let mut subscription: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("id".to_string(), requestId.clone());
                m.insert("messageHash".to_string(), messageHash.clone());
                m.insert("symbol".to_string(), symbol.clone());
                m.insert("params".to_string(), params.clone());
            m
        });
        let __ws_arg_0 = self.extend(request.clone(), &[params.clone()]);
        return self.watch(url.clone(), messageHash.clone(), &[__ws_arg_0, messageHash.clone(), subscription.clone()]).await;

    Value::Null
}

    pub fn handle_ticker(&mut self, mut client: Value, mut message: Value) -> Value {
        //
        //     {
        //         "ch": "market.btcusdt.detail",
        //         "ts": 1583494163784,
        //         "tick": {
        //             "id": 209988464418,
        //             "low": 8988,
        //             "high": 9155.41,
        //             "open": 9078.91,
        //             "close": 9136.46,
        //             "vol": 237813910.5928412,
        //             "amount": 26184.202558551195,
        //             "version": 209988464418,
        //             "count": 265673
        //         }
        //     }
        //
        let mut tick: Value = self.safe_value_k(message.clone(), "tick", &[Value::Map({
            let mut m = indexmap::IndexMap::new();
            m
        })]);
        let mut ch: Value = self.safe_string_k(message.clone(), "ch", &[]);
        if is_equal(&ch, &Value::Null) {
            return message;
        }
        let mut parts: Value = split(&ch, &Value::Str(".".to_string()));
        let mut marketId: Value = self.safe_string(parts.clone(), Value::Int(1), &[]);
        let mut market: Value = self.safe_market(&[marketId.clone()]);
        let mut ticker: Value = self.parse_ticker(tick.clone(), &[market.clone()]);
        let mut timestamp: Value = self.safe_value_k(message.clone(), "ts", &[]);
        add_element_to_object(&mut ticker, &Value::Str("timestamp".to_string()), timestamp.clone());
        add_element_to_object(&mut ticker, &Value::Str("datetime".to_string()), self.iso8601(timestamp.clone()));
        let mut symbol: Value = get_value(&ticker, &Value::Str("symbol".to_string()));
        add_element_to_object(&mut self.tickers, &symbol, ticker.clone());
        client.resolve(&[ticker.clone(), ch.clone()]);
        return message;

    Value::Null
}

/*
 * @method
 * @name bittrade#watchTrades
 * @description get the list of most recent trades for a particular symbol
 * @param {string} 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 {object} [params] extra parameters specific to the exchange API endpoint
 * @returns {object[]} a list of [trade structures]{@link https://docs.ccxt.com/?id=public-trades}
 */
    pub async fn watch_trades(&mut self, mut symbol: Value, optional_args: &[Value]) -> Value {
        let mut since = get_arg(optional_args, 0, Value::Null);
        let mut limit = get_arg(optional_args, 1, Value::Null);
        let mut params = get_arg(optional_args, 2, Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
}));
        if is_equal(&self.markets, &Value::Null) {
            self.load_markets(&[]).await;
        }
        let mut market: Value = self.market(symbol.clone());
        symbol = get_value(&market, &Value::Str("symbol".to_string()));
        // only supports a limit of 150 at this time
        let mut messageHash: Value = add(&add(&Value::Str("market.".to_string()), &get_value(&market, &Value::Str("id".to_string()))), &Value::Str(".trade.detail".to_string()));
        let mut api: Value = self.safe_string_k(self.options.clone(), "api", &[Value::Str("api".to_string())]);
        let mut hostname: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("hostname".to_string(), self.hostname.clone());
            m
        });
        let mut url: Value = self.implode_params(get_value(&get_value(&get_value(&get_value(&self.urls, &Value::Str("api".to_string())), &Value::Str("ws".to_string())), &api), &Value::Str("public".to_string())), hostname.clone());
        let mut requestId: Value = self.request_id();
        let mut request: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("sub".to_string(), messageHash.clone());
                m.insert("id".to_string(), requestId.clone());
            m
        });
        let mut subscription: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("id".to_string(), requestId.clone());
                m.insert("messageHash".to_string(), messageHash.clone());
                m.insert("symbol".to_string(), symbol.clone());
                m.insert("params".to_string(), params.clone());
            m
        });
        let __ws_arg_1 = self.extend(request.clone(), &[params.clone()]);
        let mut trades: Value = self.watch(url.clone(), messageHash.clone(), &[__ws_arg_1, messageHash.clone(), subscription.clone()]).await;
        if is_true(&self.newUpdates) {
            limit = trades.get_limit(symbol.clone(), limit.clone());
        }
        return self.filter_by_since_limit(trades.clone(), &[since.clone(), limit.clone(), Value::Str("timestamp".to_string()), Value::Bool(true)]);

    Value::Null
}

    pub fn handle_trades(&mut self, mut client: Value, mut message: Value) -> Value {
        //
        //     {
        //         "ch": "market.btcusdt.trade.detail",
        //         "ts": 1583495834011,
        //         "tick": {
        //             "id": 105004645372,
        //             "ts": 1583495833751,
        //             "data": [
        //                 {
        //                     "id": 1.050046453727319e+22,
        //                     "ts": 1583495833751,
        //                     "tradeId": 102090727790,
        //                     "amount": 0.003893,
        //                     "price": 9150.01,
        //                     "direction": "sell"
        //                 }
        //             ]
        //         }
        //     }
        //
        let mut tick: Value = self.safe_value_k(message.clone(), "tick", &[Value::Map({
            let mut m = indexmap::IndexMap::new();
            m
        })]);
        let mut data: Value = self.safe_value_k(tick.clone(), "data", &[Value::Map({
            let mut m = indexmap::IndexMap::new();
            m
        })]);
        let mut ch: Value = self.safe_string_k(message.clone(), "ch", &[]);
        if is_equal(&ch, &Value::Null) {
            return message;
        }
        let mut parts: Value = split(&ch, &Value::Str(".".to_string()));
        let mut marketId: Value = self.safe_string(parts.clone(), Value::Int(1), &[]);
        let mut market: Value = self.safe_market(&[marketId.clone()]);
        let mut symbol: Value = get_value(&market, &Value::Str("symbol".to_string()));
        let mut tradesCache: Value = self.safe_value(self.trades.clone(), symbol.clone(), &[]);
        if is_equal(&tradesCache, &Value::Null) {
            let mut limit: Value = self.safe_integer_k(self.options.clone(), "tradesLimit", &[Value::Int(1000)]);
            tradesCache = ArrayCache::new(limit.clone());
            add_element_to_object(&mut self.trades, &symbol, tradesCache.clone());
        }
        {
                        let mut i: Value = Value::Int(0);
            let mut __for_first_161: bool = true;
            while { if !__for_first_161 { i = add(&i, &Value::Int(1)); } __for_first_161 = false; is_less_than(&i, &get_array_length(&data)) } {
            let mut trade: Value = self.parse_trade(get_value(&data, &i), &[market.clone()]);
            tradesCache.append(trade.clone());
        }
        }
        client.resolve(&[tradesCache.clone(), ch.clone()]);
        return message;

    Value::Null
}

/*
 * @method
 * @name bittrade#watchOHLCV
 * @description watches historical candlestick data containing the open, high, low, and close price, and the volume of a market
 * @param {string} symbol unified symbol of the market to fetch OHLCV data for
 * @param {string} timeframe the length of time each candle represents
 * @param {int} [since] timestamp in ms of the earliest candle to fetch
 * @param {int} [limit] the maximum amount of candles to fetch
 * @param {object} [params] extra parameters specific to the exchange API endpoint
 * @returns {int[][]} A list of candles ordered as timestamp, open, high, low, close, volume
 */
    pub async fn watch_ohlcv(&mut self, mut symbol: Value, optional_args: &[Value]) -> Value {
        let mut timeframe = get_arg(optional_args, 0, Value::Str("1m".to_string()));
        let mut since = get_arg(optional_args, 1, Value::Null);
        let mut limit = get_arg(optional_args, 2, Value::Null);
        let mut params = get_arg(optional_args, 3, Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
}));
        if is_equal(&self.markets, &Value::Null) {
            self.load_markets(&[]).await;
        }
        let mut market: Value = self.market(symbol.clone());
        symbol = get_value(&market, &Value::Str("symbol".to_string()));
        let mut interval: Value = self.safe_string(self.timeframes.clone(), timeframe.clone(), &[timeframe.clone()]);
        let mut messageHash: Value = add(&add(&add(&Value::Str("market.".to_string()), &get_value(&market, &Value::Str("id".to_string()))), &Value::Str(".kline.".to_string())), &interval);
        let mut api: Value = self.safe_string_k(self.options.clone(), "api", &[Value::Str("api".to_string())]);
        let mut hostname: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("hostname".to_string(), self.hostname.clone());
            m
        });
        let mut url: Value = self.implode_params(get_value(&get_value(&get_value(&get_value(&self.urls, &Value::Str("api".to_string())), &Value::Str("ws".to_string())), &api), &Value::Str("public".to_string())), hostname.clone());
        let mut requestId: Value = self.request_id();
        let mut request: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("sub".to_string(), messageHash.clone());
                m.insert("id".to_string(), requestId.clone());
            m
        });
        let mut subscription: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("id".to_string(), requestId.clone());
                m.insert("messageHash".to_string(), messageHash.clone());
                m.insert("symbol".to_string(), symbol.clone());
                m.insert("timeframe".to_string(), timeframe.clone());
                m.insert("params".to_string(), params.clone());
            m
        });
        let __ws_arg_2 = self.extend(request.clone(), &[params.clone()]);
        let mut ohlcv: Value = self.watch(url.clone(), messageHash.clone(), &[__ws_arg_2, messageHash.clone(), subscription.clone()]).await;
        if is_true(&self.newUpdates) {
            limit = ohlcv.get_limit(symbol.clone(), limit.clone());
        }
        return self.filter_by_since_limit(ohlcv.clone(), &[since.clone(), limit.clone(), Value::Int(0), Value::Bool(true)]);

    Value::Null
}

    pub fn handle_ohlcv(&mut self, mut client: Value, mut message: Value) {
        //
        //     {
        //         "ch": "market.btcusdt.kline.1min",
        //         "ts": 1583501786794,
        //         "tick": {
        //             "id": 1583501760,
        //             "open": 9094.5,
        //             "close": 9094.51,
        //             "low": 9094.5,
        //             "high": 9094.51,
        //             "amount": 0.44639786263800907,
        //             "vol": 4059.76919054,
        //             "count": 16
        //         }
        //     }
        //
        let mut ch: Value = self.safe_string_k(message.clone(), "ch", &[]);
        if is_equal(&ch, &Value::Null) {
            return;
        }
        let mut parts: Value = split(&ch, &Value::Str(".".to_string()));
        let mut marketId: Value = self.safe_string(parts.clone(), Value::Int(1), &[]);
        let mut market: Value = self.safe_market(&[marketId.clone()]);
        let mut symbol: Value = get_value(&market, &Value::Str("symbol".to_string()));
        let mut interval: Value = self.safe_string(parts.clone(), Value::Int(3), &[]);
        let mut timeframe: Value = self.find_timeframe(interval.clone(), &[]);
        { let __be_tmp = self.safe_value(self.ohlcvs.clone(), symbol.clone(), &[Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
})]); add_element_to_object(&mut self.ohlcvs, &symbol, __be_tmp); };
        let mut stored: Value = self.safe_value(get_value(&self.ohlcvs, &symbol), timeframe.clone(), &[]);
        if is_equal(&stored, &Value::Null) {
            let mut limit: Value = self.safe_integer_k(self.options.clone(), "OHLCVLimit", &[Value::Int(1000)]);
            stored = ArrayCacheByTimestamp::new(limit.clone());
            add_element_to_object(get_value_mut(unsafe { crate::runtime::coerce_value_to_mut(&self.ohlcvs) }, &symbol), &timeframe, stored.clone());
        }
        let mut tick: Value = self.safe_value_k(message.clone(), "tick", &[]);
        let mut parsed: Value = self.parse_ohlcv(tick.clone(), &[market.clone()]);
        stored.append(parsed.clone());
        client.resolve(&[stored.clone(), ch.clone()]);
}

/*
 * @method
 * @name bittrade#watchOrderBook
 * @description watches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
 * @param {string} 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 {object} [params] extra parameters specific to the exchange API endpoint
 * @returns {object} an [order book structure]{@link https://docs.ccxt.com/?id=order-book-structure}
 */
    pub async fn watch_order_book(&mut self, mut symbol: Value, optional_args: &[Value]) -> Value {
        let mut limit = get_arg(optional_args, 0, Value::Null);
        let mut params = get_arg(optional_args, 1, Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
}));
        if is_true(&(!is_equal(&limit, &Value::Null))) && is_true(&(!is_equal(&limit, &Value::Int(150)))) {
            panic!("{}", crate::exchange_errors::exchange_error(add(&self.id, &Value::Str(" watchOrderBook accepts limit = 150 only".to_string()))));
        }
        if is_equal(&self.markets, &Value::Null) {
            self.load_markets(&[]).await;
        }
        let mut market: Value = self.market(symbol.clone());
        symbol = get_value(&market, &Value::Str("symbol".to_string()));
        // only supports a limit of 150 at this time
        limit = ternary(is_true(&(is_equal(&limit, &Value::Null))), Value::Int(150), limit.clone());
        let mut messageHash: Value = add(&add(&add(&Value::Str("market.".to_string()), &get_value(&market, &Value::Str("id".to_string()))), &Value::Str(".mbp.".to_string())), &to_string_val(&limit));
        let mut api: Value = self.safe_string_k(self.options.clone(), "api", &[Value::Str("api".to_string())]);
        let mut hostname: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("hostname".to_string(), self.hostname.clone());
            m
        });
        let mut url: Value = self.implode_params(get_value(&get_value(&get_value(&get_value(&self.urls, &Value::Str("api".to_string())), &Value::Str("ws".to_string())), &api), &Value::Str("public".to_string())), hostname.clone());
        let mut requestId: Value = self.request_id();
        let mut request: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("sub".to_string(), messageHash.clone());
                m.insert("id".to_string(), requestId.clone());
            m
        });
        let mut subscription: Value = Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("id".to_string(), requestId.clone());
                m.insert("messageHash".to_string(), messageHash.clone());
                m.insert("symbol".to_string(), symbol.clone());
                m.insert("limit".to_string(), limit.clone());
                m.insert("params".to_string(), params.clone());
                m.insert("method".to_string(), Value::Str("handle_order_book_subscription".to_string()).clone());
            m
        });
        let __ws_arg_3 = self.extend(request.clone(), &[params.clone()]);
        let mut orderbook: Value = self.watch(url.clone(), messageHash.clone(), &[__ws_arg_3, messageHash.clone(), subscription.clone()]).await;
        return orderbook.limit();

    Value::Null
}

    pub fn handle_order_book_snapshot(&mut self, mut client: Value, mut message: Value, mut subscription: Value) {
        //
        //     {
        //         "id": 1583473663565,
        //         "rep": "market.btcusdt.mbp.150",
        //         "ts": 1774979531056,
        //         "status": "ok",
        //         "data": {
        //             "seqNum": 104999417756,
        //             "bids": [
        //                 [9058.27, 0],
        //                 [9058.43, 0],
        //                 [9058.99, 0],
        //             ],
        //             "asks": [
        //                 [9084.27, 0.2],
        //                 [9085.69, 0],
        //                 [9085.81, 0],
        //             ]
        //         }
        //     }
        //
        let mut symbol: Value = self.safe_string_k(subscription.clone(), "symbol", &[]);
        let mut messageHash: Value = self.safe_string_k(subscription.clone(), "messageHash", &[]);
        let mut timestamp: Value = self.safe_integer_k(message.clone(), "ts", &[]);
        let mut orderbook: Value = get_value(&self.orderbooks, &symbol);
        let mut data: Value = self.safe_value_k(message.clone(), "data", &[]);
        let mut snapshot: Value = self.parse_order_book(data.clone(), symbol.clone(), &[]);
        add_element_to_object(&mut snapshot, &Value::Str("nonce".to_string()), self.safe_integer_k(data.clone(), "seqNum", &[]));
        add_element_to_object(&mut snapshot, &Value::Str("timestamp".to_string()), timestamp.clone());
        add_element_to_object(&mut snapshot, &Value::Str("datetime".to_string()), self.iso8601(timestamp.clone()));
        orderbook.reset(snapshot.clone());
        // unroll the accumulated deltas
        let mut messages: Value = get_value(&orderbook, &Value::Str("cache".to_string()));
        {
                        let mut i: Value = Value::Int(0);
            let mut __for_first_162: bool = true;
            while { if !__for_first_162 { i = add(&i, &Value::Int(1)); } __for_first_162 = false; is_less_than(&i, &get_array_length(&messages)) } {
            self.handle_order_book_message(client.clone(), get_value(&messages, &i), orderbook.clone());
        }
        }
        add_element_to_object(&mut self.orderbooks, &symbol, orderbook.clone());
        client.resolve(&[orderbook.clone(), messageHash.clone()]);
}

    pub async fn watch_order_book_snapshot(&mut self, mut client: Value, mut message: Value, mut subscription: Value) -> Value {
        let mut messageHash: Value = self.safe_string_k(subscription.clone(), "messageHash", &[]);
        let _try_result = futures::FutureExt::catch_unwind(std::panic::AssertUnwindSafe(async {
            let mut symbol: Value = self.safe_string_k(subscription.clone(), "symbol", &[]);
            let mut limit: Value = self.safe_integer_k(subscription.clone(), "limit", &[]);
            let mut params: Value = self.safe_value_k(subscription.clone(), "params", &[]);
            let mut api: Value = self.safe_string_k(self.options.clone(), "api", &[Value::Str("api".to_string())]);
            let mut hostname: Value = Value::Map({
                let mut m = indexmap::IndexMap::new();
                    m.insert("hostname".to_string(), self.hostname.clone());
                m
            });
            let mut url: Value = self.implode_params(get_value(&get_value(&get_value(&get_value(&self.urls, &Value::Str("api".to_string())), &Value::Str("ws".to_string())), &api), &Value::Str("public".to_string())), hostname.clone());
            let mut requestId: Value = self.request_id();
            let mut request: Value = Value::Map({
                let mut m = indexmap::IndexMap::new();
                    m.insert("req".to_string(), messageHash.clone());
                    m.insert("id".to_string(), requestId.clone());
                m
            });
            // this is a temporary subscription by a specific requestId
            // it has a very short lifetime until the snapshot is received over ws
            let mut snapshotSubscription: Value = Value::Map({
                let mut m = indexmap::IndexMap::new();
                    m.insert("id".to_string(), requestId.clone());
                    m.insert("messageHash".to_string(), messageHash.clone());
                    m.insert("symbol".to_string(), symbol.clone());
                    m.insert("limit".to_string(), limit.clone());
                    m.insert("params".to_string(), params.clone());
                    m.insert("method".to_string(), Value::Str("handle_order_book_snapshot".to_string()).clone());
                m
            });
            let mut orderbook: Value = self.watch(url.clone(), requestId.clone(), &[request.clone(), requestId.clone(), snapshotSubscription.clone()]).await;
            return orderbook.limit();
         #[allow(unreachable_code)] { Value::Null }})).await;
match _try_result { Ok(__try_ok) => { if !matches!(__try_ok, Value::Null) { return __try_ok; } return Value::Null; } Err(_try_err) => { let e: Value = panic_to_value(_try_err); 
            remove(&mut get_value(&client, &Value::Str("subscriptions".to_string())), &messageHash);
            client.reject(&[e.clone(), messageHash.clone()]);
         } }
        return Value::Null;

    Value::Null
}

    pub fn handle_delta(&self, mut bookside: Value, mut delta: Value) {
        let mut price: Value = self.safe_float(delta.clone(), Value::Int(0), &[]);
        let mut amount: Value = self.safe_float(delta.clone(), Value::Int(1), &[]);
        bookside.store(price.clone(), amount.clone());
}

    pub fn handle_deltas(&self, mut bookside: Value, mut deltas: Value) {
        {
                        let mut i: Value = Value::Int(0);
            let mut __for_first_163: bool = true;
            while { if !__for_first_163 { i = add(&i, &Value::Int(1)); } __for_first_163 = false; is_less_than(&i, &get_array_length(&deltas)) } {
            self.handle_delta(bookside.clone(), get_value(&deltas, &i));
        }
        }
}

    pub fn handle_order_book_message(&self, mut client: Value, mut message: Value, mut orderbook: Value) -> Value {
        //
        //     {
        //         "ch": "market.btcusdt.mbp.150",
        //         "ts": 1583472025885,
        //         "tick": {
        //             "seqNum": 104998984994,
        //             "prevSeqNum": 104998984977,
        //             "bids": [
        //                 [9058.27, 0],
        //                 [9058.43, 0],
        //                 [9058.99, 0],
        //             ],
        //             "asks": [
        //                 [9084.27, 0.2],
        //                 [9085.69, 0],
        //                 [9085.81, 0],
        //             ]
        //         }
        //     }
        //
        let mut tick: Value = self.safe_value_k(message.clone(), "tick", &[Value::Map({
            let mut m = indexmap::IndexMap::new();
            m
        })]);
        let mut seqNum: Value = self.safe_integer_k(tick.clone(), "seqNum", &[]);
        let mut prevSeqNum: Value = self.safe_integer_k(tick.clone(), "prevSeqNum", &[]);
        if is_true(&(is_equal(&prevSeqNum, &Value::Null))) || is_true(&(is_equal(&seqNum, &Value::Null))) {
            return orderbook;
        }
        if is_true(&(is_less_than_or_equal(&prevSeqNum, &get_value(&orderbook, &Value::Str("nonce".to_string()))))) && is_true(&(is_greater_than(&seqNum, &get_value(&orderbook, &Value::Str("nonce".to_string()))))) {
            let mut asks: Value = self.safe_value_k(tick.clone(), "asks", &[Value::List(vec![])]);
            let mut bids: Value = self.safe_value_k(tick.clone(), "bids", &[Value::List(vec![])]);
            self.handle_deltas(get_value(&orderbook, &Value::Str("asks".to_string())), asks.clone());
            self.handle_deltas(get_value(&orderbook, &Value::Str("bids".to_string())), bids.clone());
            add_element_to_object(&mut orderbook, &Value::Str("nonce".to_string()), seqNum.clone());
            let mut timestamp: Value = self.safe_integer_k(message.clone(), "ts", &[]);
            add_element_to_object(&mut orderbook, &Value::Str("timestamp".to_string()), timestamp.clone());
            add_element_to_object(&mut orderbook, &Value::Str("datetime".to_string()), self.iso8601(timestamp.clone()));
        }
        return orderbook;

    Value::Null
}

    pub fn handle_order_book(&self, mut client: Value, mut message: Value) {
        //
        // deltas
        //
        //     {
        //         "ch": "market.btcusdt.mbp.150",
        //         "ts": 1583472025885,
        //         "tick": {
        //             "seqNum": 104998984994,
        //             "prevSeqNum": 104998984977,
        //             "bids": [
        //                 [9058.27, 0],
        //                 [9058.43, 0],
        //                 [9058.99, 0],
        //             ],
        //             "asks": [
        //                 [9084.27, 0.2],
        //                 [9085.69, 0],
        //                 [9085.81, 0],
        //             ]
        //         }
        //     }
        //
        let mut messageHash: Value = self.safe_string_k(message.clone(), "ch", &[]);
        let mut ch: Value = self.safe_value_k(message.clone(), "ch", &[]);
        let mut parts: Value = split(&ch, &Value::Str(".".to_string()));
        let mut marketId: Value = self.safe_string(parts.clone(), Value::Int(1), &[]);
        let mut symbol: Value = self.safe_symbol(marketId.clone(), &[]);
        let mut orderbook: Value = get_value(&self.orderbooks, &symbol);
        if is_equal(&get_value(&orderbook, &Value::Str("nonce".to_string())), &Value::Null) {
            crate::runtime::append_to_object_array(&mut orderbook, &Value::Str("cache".to_string()), message.clone());
        }  else {
            self.handle_order_book_message(client.clone(), message.clone(), orderbook.clone());
            client.resolve(&[orderbook.clone(), messageHash.clone()]);
        }
}

    pub fn handle_order_book_subscription(&mut self, mut client: Value, mut message: Value, mut subscription: Value) {
        let mut symbol: Value = self.safe_string_k(subscription.clone(), "symbol", &[]);
        if is_equal(&symbol, &Value::Null) {
            return;
        }
        let mut limit: Value = self.safe_integer_k(subscription.clone(), "limit", &[]);
        if is_true(&Value::Bool(in_op(&self.orderbooks, &symbol))) {
            remove(&mut self.orderbooks, &symbol);
        }
        { let __be_tmp = self.order_book(&[Value::Map({
    let mut m = indexmap::IndexMap::new();
    m
}), limit.clone()]); add_element_to_object(&mut self.orderbooks, &symbol, __be_tmp); };
        // watch the snapshot in a separate async call
        self.spawn(&[Value::Str("watch_order_book_snapshot".to_string()).clone(), client.clone(), message.clone(), subscription.clone()]);
}

    pub fn handle_subscription_status(&mut self, mut client: Value, mut message: Value) -> Value {
        //
        //     {
        //         "id": 1583414227,
        //         "status": "ok",
        //         "subbed": "market.btcusdt.mbp.150",
        //         "ts": 1583414229143
        //     }
        //
        let mut id: Value = self.safe_string_k(message.clone(), "id", &[]);
        if is_equal(&id, &Value::Null) {
            return message;
        }
        let mut subscriptionsById: Value = self.index_by(get_value(&client, &Value::Str("subscriptions".to_string())), Value::Str("id".to_string()));
        let mut subscription: Value = self.safe_value(subscriptionsById.clone(), id.clone(), &[]);
        if !is_equal(&subscription, &Value::Null) {
            let mut method: Value = self.safe_value_k(subscription.clone(), "method", &[]);
            if !is_equal(&method, &Value::Null) {
                return self.dispatch_ws_handler(&method, &[client.clone(), message.clone(), subscription.clone()]);
            }
            // clean up
            if is_true(&Value::Bool(in_op(&get_value(&client, &Value::Str("subscriptions".to_string())), &id))) {
                remove(&mut get_value(&client, &Value::Str("subscriptions".to_string())), &id);
            }
        }
        return message;

    Value::Null
}

    pub fn handle_system_status(&self, mut client: Value, mut message: Value) -> Value {
        return message;

    Value::Null
}

    pub fn handle_subject(&mut self, mut client: Value, mut message: Value) {
        //
        //     {
        //         "ch": "market.btcusdt.mbp.150",
        //         "ts": 1583472025885,
        //         "tick": {
        //             "seqNum": 104998984994,
        //             "prevSeqNum": 104998984977,
        //             "bids": [
        //                 [9058.27, 0],
        //                 [9058.43, 0],
        //                 [9058.99, 0],
        //             ],
        //             "asks": [
        //                 [9084.27, 0.2],
        //                 [9085.69, 0],
        //                 [9085.81, 0],
        //             ]
        //         }
        //     }
        //
        let mut ch: Value = self.safe_value_k(message.clone(), "ch", &[]);
        let mut parts: Value = split(&ch, &Value::Str(".".to_string()));
        let mut type_var: Value = self.safe_string(parts.clone(), Value::Int(0), &[]);
        if is_equal(&type_var, &Value::Str("market".to_string())) {
            let mut methodName: Value = self.safe_string(parts.clone(), Value::Int(2), &[]);
            let mut methods: Value = Value::Map({
                let mut m = indexmap::IndexMap::new();
                    m.insert("mbp".to_string(), Value::Str("handle_order_book".to_string()).clone());
                    m.insert("detail".to_string(), Value::Str("handle_ticker".to_string()).clone());
                    m.insert("trade".to_string(), Value::Str("handle_trades".to_string()).clone());
                    m.insert("kline".to_string(), Value::Str("handle_ohlcv".to_string()).clone());
                m
            });
            let mut method: Value = self.safe_value(methods.clone(), methodName.clone(), &[]);
            if !is_equal(&method, &Value::Null) {
                self.dispatch_ws_handler(&method, &[client.clone(), message.clone()]);
            }
        }
}

    pub async fn pong(&mut self, mut client: Value, mut message: Value) -> Value {
        //
        //     { ping: 1583491673714 }
        //
        client.send(&[Value::Map({
            let mut m = indexmap::IndexMap::new();
                m.insert("pong".to_string(), self.safe_integer_k(message.clone(), "ping", &[]));
            m
        })]);

    Value::Null
}

    pub fn handle_ping(&mut self, mut client: Value, mut message: Value) {
        self.spawn(&[Value::Str("pong".to_string()).clone(), client.clone(), message.clone()]);
}

    pub fn handle_error_message(&self, mut client: Value, mut message: Value) -> Value {
        //
        //     {
        //         "ts": 1586323747018,
        //         "status": "error",
        //         'err-code': "bad-request",
        //         'err-msg': "invalid mbp.150.symbol linkusdt",
        //         "id": "2"
        //     }
        //
        let mut status: Value = self.safe_string_k(message.clone(), "status", &[]);
        if is_equal(&status, &Value::Str("error".to_string())) {
            let mut id: Value = self.safe_string_k(message.clone(), "id", &[]);
            if is_equal(&id, &Value::Null) {
                return Value::Bool(false);
            }
            let mut subscriptionsById: Value = self.index_by(get_value(&client, &Value::Str("subscriptions".to_string())), Value::Str("id".to_string()));
            let mut subscription: Value = self.safe_value(subscriptionsById.clone(), id.clone(), &[]);
            if !is_equal(&subscription, &Value::Null) {
                let mut errorCode: Value = self.safe_string_k(message.clone(), "err-code", &[]);
                let _try_result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| {
                    self.throw_exactly_matched_exception(get_value(&self.exceptions, &Value::Str("exact".to_string())), errorCode.clone(), self.json(message.clone()));
                 #[allow(unreachable_code)] { Value::Null }}));
if let Err(_try_err) = _try_result { let e: Value = panic_to_value(_try_err);
                    let mut messageHash: Value = self.safe_string_k(subscription.clone(), "messageHash", &[]);
                    client.reject(&[e.clone(), messageHash.clone()]);
                    client.reject(&[e.clone(), id.clone()]);
                    if is_true(&Value::Bool(in_op(&get_value(&client, &Value::Str("subscriptions".to_string())), &id))) {
                        remove(&mut get_value(&client, &Value::Str("subscriptions".to_string())), &id);
                    }
                }
            }
            return Value::Bool(false);
        }
        return Value::Bool(true);

    Value::Null
}

    pub fn handle_message(&mut self, mut client: Value, mut message: Value) {
        if is_equal(&self.handle_error_message(client.clone(), message.clone()), &Value::Bool(true)) {
            //
            //     {"id":1583414227,"status":"ok","subbed":"market.btcusdt.mbp.150","ts":1583414229143}
            //
            //           ________________________
            //
            // sometimes bittrade responds with half of a JSON response like
            //
            //     " {"ch":"market.ethbtc.m "
            //
            // this is passed to handleMessage as a string since it failed to be decoded as JSON
            //
            if !is_equal(&self.safe_string_k(message.clone(), "id", &[]), &Value::Null) {
                self.handle_subscription_status(client.clone(), message.clone());
            }  else if !is_equal(&self.safe_string_k(message.clone(), "ch", &[]), &Value::Null) {
                // route by channel aka topic aka subject
                self.handle_subject(client.clone(), message.clone());
            }  else if !is_equal(&self.safe_string_k(message.clone(), "ping", &[]), &Value::Null) {
                self.handle_ping(client.clone(), message.clone());
            }
        }
}
}