using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using BITKit;
using UnityEngine.Events;
using UnityEngine.Pool;
using UnityEngine.UIElements;

namespace BITKit
{
    public struct VFXMessage
    {
        public string path;
        public Location location;
    }
    public class VFXService : MonoBehaviour, IObjectMatcher<string, Transform>
    {
        private static VFXService sinleton;
        public VFX[] vfxs;
        private readonly Dictionary<string, UnityPool<Transform>> pools = new();
        
        [SerializeField] private Optional<int> defaultCapacity;
        private void Awake()
        {
            sinleton = this;
            DI.Register(this);
        }
        public Transform Spawn(RaycastHit hit, params string[] keyWords)
        {
            return Spawn(new Location()
            {
                position = hit.point,
                rotation = Quaternion.LookRotation(hit.normal),
                forward = hit.normal,
            }, keyWords);
        }
        public Transform Spawn(Location location, params string[] keyWords)
        {
            if (TryMatch(out var prefab, keyWords))
            {
                var pool = pools.Get(prefab.name);
                if (defaultCapacity.Allow)
                    pool.DefaultCapacity = defaultCapacity.Value;
                var instance = pool.Get(prefab, transform);
                instance.SetPositionAndRotation(location, location);
                if (location.forward.sqrMagnitude is not 0)
                    instance.forward = location.forward;
                return instance;
            }
            else
            {
                BIT4Log.Log<VFXService>($"未找到:{JsonHelper.Get(keyWords)}");
                return null;
            }
        }

        public bool TryMatch(out Transform value, params string[] key)
        {
            foreach (var vfx in vfxs)
            {
                if (vfx.IsMatch(key))
                {
                    value = vfx.prefab;
                    return true;
                }
            }
            value = null;
            return false;
        }
    }
}