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using Nop.Services.Plugins;
using Nop.Services.Shipping.Tracking;
namespace Nop.Services.Shipping;
/// <summary>
/// Provides an interface of shipping rate computation method
/// </summary>
public partial interface IShippingRateComputationMethod : IPlugin
{
/// <summary>
/// Gets available shipping options
/// </summary>
/// <param name="getShippingOptionRequest">A request for getting shipping options</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the represents a response of getting shipping rate options
/// </returns>
Task<GetShippingOptionResponse> GetShippingOptionsAsync(GetShippingOptionRequest getShippingOptionRequest);
/// <summary>
/// Gets fixed shipping rate (if shipping rate computation method allows it and the rate can be calculated before checkout).
/// </summary>
/// <param name="getShippingOptionRequest">A request for getting shipping options</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the fixed shipping rate; or null in case there's no fixed shipping rate
/// </returns>
Task<decimal?> GetFixedRateAsync(GetShippingOptionRequest getShippingOptionRequest);
/// <summary>
/// Get associated shipment tracker
/// </summary>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the shipment tracker
/// </returns>
Task<IShipmentTracker> GetShipmentTrackerAsync();
}