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

namespace DDD
{
    /* TODO : BitFlag 제거해야할듯.
     인터랙션 개수가 엄청나게 많아질것으로 예상됨.
     혹은 인터랙션 타입을 여기서 추가하면 안 되고 여기는 몇가지 정적인 타입만 두고 RestaurantInteraction 같은 식으로 확장해서 사용해야함.
     확장성을 생각하면 RestaurantInteractionSolver에서 RestaurantInteractionType을 리졸브해서 또 다른 Solver로 포워딩하는 식으로.
     편하게 하려면 그냥 여기서 비트연산자 없애고 인터랙션타입을 무한정 늘리기.
    */
    [Flags]
    public enum InteractionType : ulong
    {
        None = 0u,
        RestaurantManagementUi = 1u << 0,
        OpenRestaurant = 1u << 1,
        All = 0xFFFFFFFFu
    }

    [System.Serializable]
    public struct InteractionExecutionParameters
    {
        [SerializeField] private float _holdTime;
        public float HoldTime => _holdTime;
        public InteractionExecutionParameters(float holdTime = 1f)
        {
            _holdTime = holdTime;
        }
    }

    [System.Serializable]
    public struct InteractionDisplayParameters
    {
        [SerializeField] private string _messageKey;
        public string MessageKey => _messageKey;
        public InteractionDisplayParameters(string messageKey = "")
        {
            _messageKey = messageKey;
        }
    }
    
    public interface IInteractable
    {
        bool CanInteract();
        bool IsInteractionHidden();
        bool OnInteracted(IInteractor interactor, ScriptableObject payloadSo = null);
        InteractionType GetInteractionType();
        GameObject GetInteractableGameObject();
        void InitializeInteraction(InteractionType interactionType);
        InteractionExecutionParameters GetExecutionParameters();
        InteractionDisplayParameters GetDisplayParameters();
        Vector3[] GetInteractionPoints();
    }
    
    public interface IInteractor
    {
        GameObject GetInteractorGameObject();
        IInteractable GetFocusedInteractable();
        bool CanSolveInteractionType(InteractionType interactionType);
        bool CanInteractTo(IInteractable interactable,
            ScriptableObject payloadSo = null);
    }

    public interface IInteractionSolver
    {
        bool ExecuteInteraction(IInteractor interactor, IInteractable interactable, ScriptableObject payloadSo = null);
        bool CanExecuteInteraction(IInteractor interactor = null, IInteractable interactable = null,
            ScriptableObject payloadSo = null);
    }
}