exc 0.7.3

The abstraction layer of exchanges.
Documentation 
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/// Subscribe tickers.
pub mod subscribe_tickers;

/// Trade.
pub mod trade;

/// Book.
pub mod book;

/// Subscribe instruments.
pub mod instrument;

/// Fetch candles.
pub mod fetch_candles;

/// Trading.
pub mod trading;

/// Reconnect.
pub mod reconnect;

use exc_core::{
    types::{SubscribeBidAsk, SubscribeTickers, SubscribeTrades},
    util::trade_bid_ask::{TradeBidAsk, TradeBidAskLayer},
    Adaptor, Exc, ExcService, Request,
};
use tower::Layer;

#[cfg(feature = "fetch-candles")]
use self::fetch_candles::{
    FetchCandlesBackward, FetchCandlesBackwardLayer, FetchCandlesForward, FetchCandlesForwardLayer,
};

#[cfg(feature = "fetch-candles")]
use exc_core::types::{QueryCandles, QueryFirstCandles, QueryLastCandles};

pub use exc_core::util::*;

/// Extension trait of [`Exc`].
pub trait ExcExt<C, Req>: Sized
where
    Req: Request,
    C: ExcService<Req>,
{
    /// Convert into exc.
    fn into_exc(self) -> Exc<C, Req>;

    /// Convert the inner channel to a [`SubscribeTickersService`](crate::SubscribeTickersService)
    fn into_subscribe_tickers(self) -> Exc<TradeBidAsk<Exc<C, Req>>, SubscribeTickers>
    where
        C: Clone + Send + 'static,
        C::Future: Send + 'static,
        Req: Adaptor<SubscribeTrades> + Adaptor<SubscribeBidAsk> + 'static,
    {
        Exc::new(TradeBidAskLayer::default().layer(self.into_exc()))
    }

    /// Convert into a [`SubscribeTickersService`](crate::SubscribeTickersService).
    fn into_subscribe_tickers_accpet_bid_ask_ts(
        self,
    ) -> Exc<TradeBidAsk<Exc<C, Req>>, SubscribeTickers>
    where
        C: Clone + Send + 'static,
        C::Future: Send + 'static,
        Req: Adaptor<SubscribeTrades> + Adaptor<SubscribeBidAsk> + 'static,
    {
        Exc::new(
            TradeBidAskLayer::default()
                .accept_bid_ask_ts()
                .layer(self.into_exc()),
        )
    }

    /// Convert into a [`FetchCandlesService`](crate::FetchCandlesService)
    /// # Panic
    /// Panic if `limit` is zero.
    #[cfg(feature = "fetch-candles")]
    fn into_fetch_candles_forward(
        self,
        limit: usize,
    ) -> Exc<FetchCandlesForward<Exc<C, Req>>, QueryCandles>
    where
        Req: Adaptor<QueryFirstCandles>,
        C: Send,
        C::Future: Send,
    {
        Exc::new(FetchCandlesForwardLayer::with_default_bound(limit).layer(self.into_exc()))
    }

    /// Convert into a [`FetchCandlesService`](crate::FetchCandlesService)
    /// # Panic
    /// Panic if `limit` is zero.
    #[cfg(feature = "fetch-candles")]
    fn into_fetch_candles_forward_with_bound(
        self,
        limit: usize,
        bound: usize,
    ) -> Exc<FetchCandlesForward<Exc<C, Req>>, QueryCandles>
    where
        Req: Adaptor<QueryFirstCandles>,
        C: Send,
        C::Future: Send,
    {
        Exc::new(FetchCandlesForwardLayer::new(limit, bound).layer(self.into_exc()))
    }

    /// Convert into a [`FetchCandlesService`](crate::FetchCandlesService)
    /// # Panic
    /// Panic if `limit` is zero.
    #[cfg(feature = "fetch-candles")]
    fn into_fetch_candles_backward(
        self,
        limit: usize,
    ) -> Exc<FetchCandlesBackward<Exc<C, Req>>, QueryCandles>
    where
        Req: Adaptor<QueryLastCandles>,
        C: Send,
        C::Future: Send,
    {
        Exc::new(FetchCandlesBackwardLayer::with_default_bound(limit).layer(self.into_exc()))
    }

    /// Convert into a [`FetchCandlesService`](crate::FetchCandlesService)
    /// # Panic
    /// Panic if `limit` is zero.
    #[cfg(feature = "fetch-candles")]
    fn into_fetch_candles_backward_with_bound(
        self,
        limit: usize,
        bound: usize,
    ) -> Exc<FetchCandlesBackward<Exc<C, Req>>, QueryCandles>
    where
        Req: Adaptor<QueryLastCandles>,
        C: Send,
        C::Future: Send,
    {
        Exc::new(FetchCandlesBackwardLayer::new(limit, bound).layer(self.into_exc()))
    }
}

impl<C, Req> ExcExt<C, Req> for Exc<C, Req>
where
    Req: Request,
    C: ExcService<Req>,
{
    #[inline]
    fn into_exc(self) -> Exc<C, Req> {
        self
    }
}