using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;
using System.Linq;
namespace BITKit
{
    [System.Serializable]
    public class InputActionGroup : IDisposable
    {
        int lockFile = Guid.NewGuid().GetHashCode();
        public bool allowGlobalActivation = true;
        public bool isEnabled;
        InitializationState state = InitializationState.None;
        public ValidHandle allowInput = new();
        List<InputAction> actions = new();
        public InputActionGroup RegisterCallback(InputActionReference reference, Action<InputAction.CallbackContext> callback)
        {
            if (reference is null)
            {
                Debug.LogWarning($"未知的引用");
                return this;
            }
            EnsureConfiguration();
            var action = reference.action.Clone();

            actions
            .Where(x => x.name == action.name)
            .CreateOrAddIfEmety(actions, action)
            .ForEach(x =>
            {
                x.RegisterCallback(callback);
            });

            return this;
        }
        public void UnRegisterCallback(InputActionReference reference, Action<InputAction.CallbackContext> callback)
        {
            foreach (var action in actions.Where(x => x.name == reference.action.name))
            {
                action.UnRegisterCallback(callback);
            }
        }
        void EnsureConfiguration()
        {
            if (state is not InitializationState.Initialized)
            {
                Init();
                state = InitializationState.Initialized;
            }
        }
        void Init()
        {
            if (allowGlobalActivation)
                BITInputSystem.AllowInput.AddListener(Listen);
            allowInput.AddListener(Allow);
        }
        void Listen(bool allowInput)
        {
            this.allowInput.SetElements(lockFile, allowInput);
            this.allowInput.SetDisableElements(lockFile, !allowInput);
        }
        void Allow(bool allow)
        {
            foreach (var action in actions)
            {
                if (allow)
                {
                    action.Enable();
                }
                else
                {
                    action.Disable();
                }
            }
            isEnabled = allow;
        }

        public void Dispose()
        {
            foreach (var action in actions)
            {
                action.Disable();
            }
            actions.Clear();
        }
    }
}