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use anyhow::Result;
use chrono::Utc;

use crate::Swapkit;
use crate::{api_get_gas_prices, GasPrices};

impl Swapkit {
	/// Retrieve the current gas prices.
	///
	/// # Returns JSON Equivalent
	/// ```json
	/// [
	///     {
	///         "asset": "THOR.RUNE",
	///         "units": "tor",
	///         "gas": 2000000,
	///         "chainId": "thorchain-mainnet-v1",
	///         "gasAsset": 0.02
	///     }
	/// ]
	/// ```
	///
	/// # Example
	///
	/// ```rust
	/// use swapkit_rs::Swapkit;
	/// use dotenv;
	/// use swapkit_rs::Configuration;
	///
	/// # tokio_test::block_on(async {
	/// let swapkit_config = Configuration::new(None, dotenv::var("SWAPKIT_REFERER").unwrap().as_str(), dotenv::var("SWAPKIT_X_API_KEY").unwrap().as_str());
	/// let mut swapkit = Swapkit::new(swapkit_config);
	///
	/// let gas_prices = swapkit.get_gas_prices().await.unwrap();
	///
	/// assert_ne!(gas_prices.get_gas_prices().len(), 0);
	/// # });
	/// ```
	///
	/// # Errors
	/// todo
	pub async fn get_gas_prices(&mut self) -> Result<GasPrices> {
		// Wait for rate limit timer
		self.sleep_until_ok_to_call().await;

		self.set_last_call(Utc::now());
		api_get_gas_prices(self.get_config().get_base_url(), self.get_headers()).await
	}
}