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

namespace Demo.Game
{
    public class ParticleJudgement : IJudgementHookObject, IAssetBundleLoader
    {
        public static ParticleJudgement Make()
        {
            return new GameObject().AddComponent<ParticleJudgement>();
        }

        [Content, SerializeField] private List<IEnumerator> TaskLoader = new();
        [Content, SerializeField] private Dictionary<IInteraction.JudgementLevel, string> AssetBundles = new();
        [Content, SerializeField] private Dictionary<IInteraction.JudgementLevel, GameObject> Prefabs = new();
        [Content, SerializeField] private Dictionary<IInteraction.JudgementLevel, float> Durations = new();

        protected override IEnumerator DoSomethingDuringApplyScript()
        {
            yield return base.DoSomethingDuringApplyScript();
            foreach (var task in TaskLoader)
                yield return task;
        }

        public override IEnumerator UnloadScript()
        {
            yield return base.UnloadScript();
            foreach (var ab in AssetBundles)
                yield return this.UnloadAssetBundle(ab.Value);
        }

        /// <summary>
        /// 加载预制体作为子物体
        /// </summary>
        /// <param name="level">设置的判定效果对应的等级</param>
        /// <param name="ab"></param>
        /// <param name="prefab"></param>
        /// <param name="duration">判定效果会现形的持续时间</param>
        [Convention.RScript.Variable.Attr.Method]
        public void Load(IInteraction.JudgementLevel levelId, string ab, string prefab, float duration)
        {
            TaskLoader.Add(this.LoadAssetBundle(ab, assetBundle =>
            {
                var obj = assetBundle.LoadAsset<GameObject>(prefab);
                GameObject sub = Instantiate(obj);
                sub.SetActive(false);
                Prefabs.Add(levelId, sub);
                sub.transform.SetParent(transform);
                AssetBundles.Add(levelId, ab);
                Durations.Add(levelId, duration);
            }));
        }

        private void CreateParticle(GameObject prefab)
        {
            prefab.SetActive(true);
        }

        private void DestroyParticle(GameObject prefab)
        {
            prefab.SetActive(false);
        }

        public override void OnJudgement(IInteraction.JudgementLevel level)
        {
            if (Prefabs.TryGetValue(level, out var effect))
            {
                ConventionUtility.CreateSteps()
                    .Next(() => CreateParticle(effect))
                    .Wait(Durations[level], () => DestroyParticle(effect))
                    .Invoke();
            }
        }
    }
}