using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace KairoEngine.Core
{
    public class RequestEvents
    {
        #region Request_bool_with_no_args

        public Dictionary<string, System.Func<bool>> list = new Dictionary<string, System.Func<bool>>();
        
        public void Bind(string title, System.Func<bool> listener)
        {
            System.Func<bool> action = null;
            if (list.TryGetValue(title, out action) == false)
            {
                action += listener;
                list.Add(title, action);
            }
        }

        public void Unbind(string title, System.Func<bool> listener)
        {
            System.Func<bool> action = null;
            if (list.TryGetValue(title, out action))
            {
                action -= listener;
                list.Remove(title);
            }
        }

        // public bool Get(string title)
        // {
        //     System.Func<bool> action = null;
        //     if (list.TryGetValue(title, out action))
        //     {
        //         if(action != null) return action();
        //     }
        //     return false;
        // }

        public EventResponse<bool> GetBool(string title)
        {
            System.Func<bool> action = null;
            EventResponse<bool> response = new EventResponse<bool>();
            if (list.TryGetValue(title, out action))
            {
                if(action != null) 
                {
                    bool result = action();
                    response.value = result;
                    response.status = EventResponseStatus.OK;
                }
            }
            else response.status = EventResponseStatus.NotFound;
            return response;
        }

        #endregion

        #region Request_GameObject_with_no_args

        public Dictionary<string, System.Func<GameObject>> list2 = new Dictionary<string, System.Func<GameObject>>();
        
        public void Bind(string title, System.Func<GameObject> listener)
        {
            System.Func<GameObject> action = null;
            if (list2.TryGetValue(title, out action) == false)
            {
                action += listener;
                list2.Add(title, action);
            }
        }

        public void Unbind(string title, System.Func<GameObject> listener)
        {
            System.Func<GameObject> action = null;
            if (list2.TryGetValue(title, out action))
            {
                action -= listener;
                list2.Remove(title);
            }
        }

        public EventResponse<GameObject> GetGameObject(string title)
        {
            System.Func<GameObject> action = null;
            EventResponse<GameObject> response = new EventResponse<GameObject>();
            if (list2.TryGetValue(title, out action))
            {
                if(action != null) 
                {
                    GameObject result = action();
                    response.value = result;
                    if(response.value == null) response.status = EventResponseStatus.EmptyResponse;
                    else response.status = EventResponseStatus.OK;
                }
            }
            else response.status = EventResponseStatus.NotFound;
            return response;
        }
        #endregion

    }
}