using System;
using System.Threading.Tasks;
using Opsive.BehaviorDesigner.Runtime;
using Unity.Entities;
using UnityEngine;
using UnityEngine.AddressableAssets;

namespace DDD
{
    [RequireComponent(typeof(BehaviorTree))]
    [RequireComponent(typeof(RestaurantCustomerBlackboardComponent))]
    public class RestaurantCustomerAiComponent : MonoBehaviour, IRestaurantCustomerAi
    {
        protected BehaviorTree _behaviorTree;
        protected RestaurantCustomerBlackboardComponent _blackboardComponent;

        private void Awake()
        {
            _behaviorTree = GetComponent<BehaviorTree>();
            _blackboardComponent = GetComponent<RestaurantCustomerBlackboardComponent>();
        }

        public void InitializeAi(CustomerData inCustomerData)
        {
            try
            {
                InitializeAiInternal(inCustomerData);
            }
            catch (Exception e)
            {
                // Log
                Debug.LogError(e);
                throw; // TODO 예외 처리
            }
        }

        private async Task InitializeAiInternal(CustomerData inCustomerData)
        {
            var customerState = RestaurantState.Instance.CustomerState;
            var subtree = customerState.GetLoadedSubtree(inCustomerData.CustomerType);
            
            if (subtree == null)
            {
                Debug.LogError(
                    $"[CustomerCharacter] No preloaded subtree found for CustomerType: {inCustomerData.CustomerType}. Make sure CustomerBehaviorData is loaded.");
                subtree = await customerState.GetOrLoadSubtree(inCustomerData.CustomerType);
            }

            _behaviorTree.Subgraph = subtree;
            _blackboardComponent.InitializeWithBehaviorTree(subtree);
            _blackboardComponent.SetCustomerData(inCustomerData);
            // TODO : 1. Subtree - Action, Condition
            // TODO : 2. Blackboard
            _behaviorTree.StartBehavior();
        }
    }
}