using Flyshot.Core.Planning;
using Microsoft.Extensions.DependencyInjection;

namespace Flyshot.CSharp.Planning;

/// <summary>
/// 提供可选 C# 规划算法后端的依赖注入注册入口。
/// </summary>
public static class CSharpPlanningServiceCollectionExtensions
{
    /// <summary>
    /// 显式注册 C# ICSP 与 self-adapt-icsp 后端。
    /// </summary>
    /// <param name="services">当前宿主服务集合。</param>
    /// <returns>同一服务集合，便于链式调用。</returns>
    public static IServiceCollection AddCSharpPlanningBackends(this IServiceCollection services)
    {
        ArgumentNullException.ThrowIfNull(services);

        services.AddSingleton<IPlanningBackend, CSharpIcspPlanningBackend>();
        services.AddSingleton<IPlanningBackend, SelfAdaptIcspPlanningBackend>();
        return services;
    }
}