using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using KairoEngine.Core;
using KairoEngine.Core.ModuleSystem;
using Sirenix.OdinInspector;
using QFSW.MOP2;

namespace KairoEngine.SFX
{
    [Serializable, HideReferenceObjectPicker]
    public class SFXModule : GameModuleBase
    {
        public override string name => "SFX Module";

        [Tooltip("Use a custom sound emitter prefab or load the default prefab")]
        [HorizontalGroup("@name/emitter", 0.015f), LabelText("Custom Sound Emitter")] public bool useCustomSoundEmitter;
        [HorizontalGroup("@name/emitter", 0.985f), HideLabel, ShowIf("@useCustomSoundEmitter")] public GameObject soundEmitterPrefab;
        [FoldoutGroup("@name"), Tooltip("Use the ObjectPool system so that sound emitters can be reused. This results in better overral performance. Requires the Object Pool Module to be installed.")] 
        public bool useObjectPooling = false;
        [HorizontalGroup("@name/pool", 0.015f), LabelText("Custom Object Pool"), ShowIf("@useObjectPooling")] public bool useCustomPool;
        [HorizontalGroup("@name/pool", 0.985f), HideLabel, ShowIf("@useCustomPool"), NonSerialized, ShowInInspector] public ObjectPool soundEmitterPool;
        [FoldoutGroup("@name"), Tooltip("Optional sound library asset")] public SFXLibrary soundLibrary;
        private SoundController soundController;

        public SFXModule(GameConfig config) : base(config)
        {
            this.gameConfig = config;
            this.className = this.GetType().AssemblyQualifiedName;
            this.typeName = "SFXModule";
        }

        public override void Load(Transform parent)
        {
            if(!useCustomSoundEmitter) soundEmitterPrefab = Resources.Load("SoundEmmiterPrefab") as GameObject;
            GameObject soundControllerPrefab = Resources.Load("SoundControllerPrefab") as GameObject;
            GameObject soundControllerObj = GameObject.Instantiate(soundControllerPrefab, parent);
            soundController = soundControllerObj.GetComponent<SoundController>();
            if(soundController == null)
            {
                Debug.LogError($"SoundControllerPrefab has no SoundController component", soundControllerObj);
                return;
            }
            soundController.soundEmitterPrefab = soundEmitterPrefab;
            if(soundLibrary != null) soundController.soundLibrary = soundLibrary;
            soundControllerObj.name = "SoundController";
        }

        public override void Start()
        {
            
            if(!useObjectPooling) 
            {
                soundController._soundEmitterPool = "";
                SoundController.soundEmitterPool = "";
                soundEmitterPrefab.GetComponent<SoundEmitter>().soundEmitterPrefabPool = "";
                return;
            }
            if(soundController == null) return;
            soundController.soundEmitterPrefab = null;
            if(soundEmitterPool == null) soundEmitterPool = Resources.Load("SoundEmitterPool") as ObjectPool;
            if(soundEmitterPool == null) 
            {
                Debug.LogError("Missing soundEmitterPool in SFX Module");
                return;
            }
            if(MasterObjectPooler.Instance == null)
            {
                Debug.LogError("The MasterObjectPooler component is not loaded. Add the Object Pool module in the game config to load it.");
                return;
            }
            soundEmitterPrefab.GetComponent<SoundEmitter>().soundEmitterPrefabPool = soundEmitterPool.PoolName;
            MasterObjectPooler.Instance.AddPool(soundEmitterPool.PoolName, soundEmitterPool);
            soundController._soundEmitterPool = soundEmitterPool.PoolName;
            SoundController.soundEmitterPool = soundEmitterPool.PoolName;
            var pool = MasterObjectPooler.Instance.GetPool(soundEmitterPool.PoolName);
            if(pool == null) Debug.LogError("Error configuring SFX pool.");
            else
            {
                soundController._soundsParent = pool.ObjectParent.gameObject;
                SoundController.soundsParent = pool.ObjectParent.gameObject;
            } 
        }

        public override void Reset()
        {
            
        }

        public override void Destroy()
        {
            
        }

        public static SFXModule JSONToSFXModule(string data)
        {
            try
            {
                return JsonUtility.FromJson<SFXModule>(data);
            }
            catch (System.Exception e)
            {
                Debug.LogError($"Could not deserialize SFXModule: \n{e}");
                return new SFXModule(null);
            }
        }

        public override void OnBeforeSerialize(ObjectSerializer serializer) 
        { 
            if(soundEmitterPrefab != null) serializer.AddGameObject("SFXModule_soundEmitterPrefab", soundEmitterPrefab);
            if(soundEmitterPool != null) serializer.AddObject("SFXModule_soundEmitterPool", soundEmitterPool);
        }

        public override void OnBeforeDeserialize(ObjectSerializer serializer) 
        { 
            soundEmitterPrefab = serializer.GetGameObject("SFXModule_soundEmitterPrefab");
            soundEmitterPool = (ObjectPool)serializer.GetObject("SFXModule_soundEmitterPool");
        }
    }
}