using System.ComponentModel;

namespace NewLife.Model;

/// <summary>轻量级对象容器，支持注入</summary>
/// <remarks>
/// 文档 https://newlifex.com/core/object_container
/// </remarks>
public interface IObjectContainer
{
    #region 注册
    /// <summary>注册类型和名称</summary>
    /// <param name="serviceType">接口类型</param>
    /// <param name="implementationType">实现类型</param>
    /// <param name="instance">实例</param>
    /// <returns></returns>
    [EditorBrowsable(EditorBrowsableState.Never)]
    IObjectContainer Register(Type serviceType, Type? implementationType, Object? instance);

    /// <summary>添加</summary>
    /// <param name="item"></param>
    void Add(IObject item);

    /// <summary>尝试添加</summary>
    /// <param name="item"></param>
    Boolean TryAdd(IObject item);
    #endregion

    #region 解析
    /// <summary>在指定容器中解析类型的实例</summary>
    /// <param name="serviceType">接口类型</param>
    /// <param name="serviceProvider">容器</param>
    /// <returns></returns>
    [EditorBrowsable(EditorBrowsableState.Never)]
    Object? Resolve(Type serviceType, IServiceProvider? serviceProvider = null);
    #endregion
}

/// <summary>生命周期</summary>
public enum ObjectLifetime
{
    /// <summary>单实例</summary>
    Singleton,

    /// <summary>容器内单实例</summary>
    Scoped,

    /// <summary>每次一个实例</summary>
    Transient
}

/// <summary>对象映射接口</summary>
public interface IObject
{
    /// <summary>服务类型</summary>
    Type ServiceType { get; }

    /// <summary>实现类型</summary>
    Type? ImplementationType { get; }

    /// <summary>生命周期</summary>
    ObjectLifetime Lifetime { get; }
}