using System;
using System.Collections.Generic;
using Fort23.Core;
using Fort23.UTool;

#if !COMBAT_SERVER
using UnityEngine;
#endif

using Utility;

namespace Common.Utility.CombatEvent
{
    public class CombatEventManager : Singleton<CombatEventManager>
    {
        public delegate void CombatEventHandler(IEventData e);

        private readonly Dictionary<CombatEventType, CombatEventHandler> _eventHandlers =
            new Dictionary<CombatEventType, CombatEventHandler>();

        public CombatEventManager()
        {
            _eventHandlers = new Dictionary<CombatEventType, CombatEventHandler>();
        }

        protected override void ProDispose()
        {
            _eventHandlers.Clear();
        }

        /// <summary>
        /// 注册事件，没有处理重复，需要注意
        /// </summary>
        /// <param name="type"></param>
        /// <param name="handle"></param>
        public void AddEventListener(CombatEventType type, CombatEventHandler handle)
        {
            if (!_eventHandlers.ContainsKey(type))
            {
                _eventHandlers.Add(type, handle);
            }
            else
            {
                _eventHandlers[type] -= handle;
                _eventHandlers[type] += handle;
            }
        }

        /// <summary>
        /// 取消注册
        /// </summary>
        /// <param name="type"></param>
        /// <param name="handle"></param>
        public void RemoveEventListener(CombatEventType type, CombatEventHandler handle)
        {
            if (_eventHandlers.ContainsKey(type))
            {
                _eventHandlers[type] -= handle;
            }
        }

        /// <summary>
        /// 事件触发执行的方法，Public方便外界调用，谁执行，谁给执行细节
        /// </summary>
        public void Dispatch(CombatEventType type, IEventData eventData, bool isRecycle = true)
        {
            if (_eventHandlers.ContainsKey(type))
            {
                if (_eventHandlers[type] != null)
                {
                    Delegate[] allDelegate = _eventHandlers[type].GetInvocationList();
                    for (int i = 0; i < allDelegate.Length; i++)
                    {
                        try
                        {
                            allDelegate[i]?.DynamicInvoke(eventData);
                        }
                        catch (Exception e)
                        {
                            LogTool.Error(e);
                        }
                    }
                }
            }

            if (isRecycle && eventData != null)
            {
                eventData.Recycle();
            }
        }
    }
}