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use crate::client::*;
use crate::errors::*;
use crate::rest_model::*;

use serde_json::from_str;

#[derive(Clone)]
pub struct General {
    pub client: Client,
}

impl General {
    /// Test connectivity
    /// # Examples
    /// ```rust
    /// use binance::{api::*, general::*, config::*};
    /// let general: General = Binance::new_with_env(&Config::default());
    /// let pong = tokio_test::block_on(general.ping());
    /// assert!(pong.is_ok(), "{:?}", pong);
    /// assert_eq!(pong.unwrap(), "pong");
    /// ```
    pub async fn ping(&self) -> Result<String> {
        self.client.get("/api/v3/ping", "").await?;

        Ok("pong".into())
    }

    /// Check server time
    /// # Examples
    /// ```rust
    /// use binance::{api::*, general::*, config::*};
    /// let general: General = Binance::new_with_env(&Config::default());
    /// let server_time = tokio_test::block_on(general.get_server_time());
    /// assert!(server_time.is_ok(), "{:?}", server_time);
    /// ```
    pub async fn get_server_time(&self) -> Result<ServerTime> {
        let data: String = self.client.get("/api/v3/time", "").await?;

        let server_time: ServerTime = from_str(data.as_str())?;

        Ok(server_time)
    }

    /// Obtain exchange information (rate limits, symbol metadata etc)
    /// # Examples
    /// ```rust
    /// use binance::{api::*, general::*, config::*};
    /// let general: General = Binance::new_with_env(&Config::default());
    /// let excyahge_info = tokio_test::block_on(general.exchange_info());
    /// assert!(excyahge_info.is_ok(), "{:?}", excyahge_info);
    /// ```
    pub async fn exchange_info(&self) -> Result<ExchangeInformation> {
        let data: String = self.client.get("/api/v3/exchangeInfo", "").await?;

        let info: ExchangeInformation = from_str(data.as_str())?;

        Ok(info)
    }
}