using System;

namespace Bro.Common.PubSub
{
    /// <summary>
    /// 发布/订阅中心
    /// </summary>
    public interface IPubSubCenter
    {
        /// <summary>
        /// 订阅事件
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="method"></param>
        /// <returns></returns>
        bool Subscribe(string tag, Func<ISubscriber, object, object, object> method);

        /// <summary>
        /// 订阅事件
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="subscribe"></param>
        /// <returns></returns>
        bool Subscribe(string tag, ISubscriber subscribe);

        /// <summary>
        /// 发布事件
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="data"></param>
        void Publish(string tag, object param1, object param2, bool isAsync);

        /// <summary>
        /// 获取所有订阅者
        /// </summary>
        /// <param name="tag"></param>
        /// <returns></returns>
        Subscribers GetSubscribers(string tag);

        /// <summary>
        /// 获取某个订阅者
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="name"></param>
        /// <returns></returns>
        ISubscriber GetSubscriber(string tag, string name);

        /// <summary>
        /// 移除某个订阅者
        /// </summary>
        /// <param name="tag"></param>
        /// <param name="name"></param>
        /// <returns></returns>
        bool RemoveSubscriber(string tag, string name);

        /// <summary>
        /// 移除某类所有订阅者
        /// </summary>
        /// <param name="tag"></param>
        /// <returns></returns>
        bool RemoveSubscribers(string tag);
    }
}