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

namespace Beyond
{
    public class EventVolume : MonoBehaviour
    {
        [SerializeField]
        private List<StreamingAsset> streamingVolume = new List<StreamingAsset>();
        private int activeVolumesCount;
        [SerializeField]
        private List<StreamingAsset> forceCloseVolume = new List<StreamingAsset>();
        private int activeForceCloseVolumesCount;

        private Activator activator;
        private bool isActive;
        private bool firstTimeTriggered;

        public List<StreamingAsset> ForceCloseVolume { get => forceCloseVolume; set => forceCloseVolume = value; }

        private void Awake()
        {
            activator = GetComponentInChildren<Activator>();
            AssignToEvent();
        }

        private void Start()
        {
            if (!firstTimeTriggered)
            {
                OnVolume();
            }
        }

        private void OnDestroy()
        {
            if (streamingVolume != null)
            {
                foreach (var item in streamingVolume)
                {
                    if (item != null)
                    {
                        item.OnVolume -= OnVolume;
                    }
                }
            }
            if (forceCloseVolume != null)
            {
                foreach (var item in forceCloseVolume)
                {
                    if (item != null)
                    {
                        item.OnVolume -= OnVolume;
                    }
                }
            }
        }

        public void AssignToEvent()
        {
            if (streamingVolume != null)
            {
                foreach (var item in streamingVolume)
                {
                    if (item != null)
                    {
                        item.OnVolume += OnVolume;
                    }
                }
            }
            if (forceCloseVolume != null)
            {
                foreach (var item in forceCloseVolume)
                {
                    if (item != null)
                    {
                        item.OnVolume += OnVolume;
                    }
                }
            }
        }

        private int GetCountOfActiveVolumes()
        {
            int count = 0;
            for (int i = 0; i < streamingVolume.Count; i++)
            {
                if (streamingVolume[i].IsVolumeActive)
                {
                    count++;
                }
            }
            return count;
        }

        private int GetCountOfActiveForceCloseVolumes()
        {
            int count = 0;
            for (int i = 0; i < forceCloseVolume.Count; i++)
            {
                if (forceCloseVolume[i] != null && forceCloseVolume[i].IsVolumeActive)
                {
                    count++;
                }
            }
            return count;
        }

        private void OnVolume()
        {
            firstTimeTriggered = true;

            activeVolumesCount = GetCountOfActiveVolumes();
            activeForceCloseVolumesCount = GetCountOfActiveForceCloseVolumes();

            if (activeForceCloseVolumesCount > 0)
            {
                isActive = false;
            }
            else if (activeVolumesCount > 0)
            {
                isActive = true;
            }
            else
            {
                isActive = false;
            }

            if (activator != null)
            {
                activator.SetActive(isActive);
            }
        }
    }
}