using Invector;
using Sirenix.OdinInspector;
using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.Rendering;

namespace Beyond
{
    [RequireComponent(typeof(vHealthController))]
    [RequireComponent(typeof(AudioSource))]
    public class vDestructableObject : MonoBehaviour
    {
        [System.Serializable]
        public class SpawnDescriptor
        {
            public GameObject prefab;
            public float chance = 1f;
        }

        // Start is called before the first frame update
        public vHealthController m_healthController;
        public int mMaxHP = 10;
        public AudioClip m_DestroySound;
        public AudioClip m_DestroySound2;
        public AudioClip[] hitSounds;
        public GameObject[] m_ShardsGroup;
        public GameObject[] objectsToEnable;
        public GameObject[] objectsToDisable;
        public AudioSource m_AudioSource;
        public UnityEvent m_onDestroy;
        //public GameObject[] m_prefabToSpawn;
        public SpawnDescriptor[] m_objectsToSpawn;
        public int m_minObjectsToSpawn = 1;
        public int m_maxObjectsToSpawn = 2;
        public Transform m_spawnPoint;


        int m_HP = 10;
        public int explosiveDamage = 0;
        public float randomPositionOffset = 0.2f;
        public int points = 20;

        int mDestroySoundIdx = 0;

        AudioClip GetRandomSound(AudioClip[] audioClips)
        {
            return audioClips[UnityEngine.Random.Range(0, audioClips.Length)];
        }

        void Start()
        {
            m_healthController = GetComponent<vHealthController>();
            m_healthController.onReceiveDamage.AddListener(TakeDamage);
            gameObject.SetLayerRecursively(LayerMask.NameToLayer("Enemy"));
            m_HP = mMaxHP;
            //normalize random chances
            float chanceSum = 0f;
            foreach (var o in m_objectsToSpawn)
            {
                chanceSum += o.chance;
            }
            foreach (var o in m_objectsToSpawn)
            {
                o.chance /= chanceSum;
            }
        }

        public void TakeDamage(vDamage damage)
        {
            if (m_HP <= 0)
                return;
            m_HP -= damage.damageValue;
            //            if (PointMgr.instance)
            //                PointMgr.instance.SuccessfulHit(true);
            if (m_HP <= 0)
                Die();
            else
                Hit();
        }

        void Hit()
        {
            if (hitSounds.Length > 0)
            {
                m_AudioSource.clip = GetRandomSound(hitSounds);
                m_AudioSource.Play();
            }
        }

        private void SpawnRandomObjects()
        {
            if (m_objectsToSpawn != null && m_objectsToSpawn.Length > 0)
            {
                int numToSpawn = UnityEngine.Random.Range(m_minObjectsToSpawn, m_maxObjectsToSpawn);
                Vector3 pos = transform.position;
                Quaternion q = transform.rotation;
                if (m_spawnPoint != null)
                {
                    pos = m_spawnPoint.position;
                    q = m_spawnPoint.rotation;
                }
                for (int i=0; i<numToSpawn; i++)
                {
                    //select random object
                    float rnd = UnityEngine.Random.Range(0f, 1f);
                    float sum = 0f;
                    GameObject prefab = null;
                    for (int j=0; j<m_objectsToSpawn.Length; j++)
                    {
                        var obj = m_objectsToSpawn[j];
                        //this is the object
                        if (rnd > sum && rnd < sum+obj.chance)
                        {
                            prefab = obj.prefab;
                            break;
                        }
                        sum+=obj.chance;                    
                    }
                    if (prefab != null)
                    {
                        var inst = Instantiate(prefab, pos + Random.onUnitSphere * randomPositionOffset, q);
                        
                        var rb = inst.GetComponent<Rigidbody>();
                        if (rb)
                        {
                            rb.AddExplosionForce(explosiveDamage, transform.position, 20f);
                        }
                        
                    }
                }
            }
        }

        [Button]
        public virtual void Die()
        {
            SoundListPlayer soundListPlayer = null;
            if (m_ShardsGroup.Length > 0)
            {
                GameObject shards = m_ShardsGroup[UnityEngine.Random.Range(0, m_ShardsGroup.Length)];
                //mAudioSource = shards.AddComponent<AudioSource>();
                soundListPlayer = shards.AddComponent<SoundListPlayer>();
                shards.SetActive(true);
                shards.transform.parent = null;
            }
            else
            {
                soundListPlayer = gameObject.AddComponent<SoundListPlayer>();
            }
            //use new method
            //if (m_prefabToSpawn != null && m_prefabToSpawn.Length > 0)
            {
                SpawnRandomObjects();
            }
            /*
            else if (m_prefabToSpawn != null && m_prefabToSpawn.Length > 0)
            {
                Vector3 pos = transform.position;
                Quaternion q = transform.rotation;
                if (m_spawnPoint != null)
                {
                    pos = m_spawnPoint.position;
                    q = m_spawnPoint.rotation;
                }

                var pref = m_prefabToSpawn[UnityEngine.Random.Range(0, m_prefabToSpawn.Length)];
                if (pref != null)
                    Instantiate(pref, pos, q);
            }
            */
            //if (PointMgr.instance && points != 0)
            //    PointMgr.instance.ShowPoints(points, transform.position);

            foreach (GameObject o in objectsToEnable)
            {
                o.SetActive(true);
            }

            foreach (GameObject o in objectsToDisable)
            {
                o.SetActive(false);
            }

            if (m_onDestroy != null)
            {
                m_onDestroy.Invoke();
            }

            //thats ugly, but I couldn't add array because all set mDestroySound whould have been lost
            if (m_DestroySound != null)
            {
                soundListPlayer.clips = new AudioClip[2];
                soundListPlayer.clips[0] = m_DestroySound;
                if (m_DestroySound2 != null)
                {
                    soundListPlayer.clips[1] = m_DestroySound2;
                }

                soundListPlayer.Play();
            }

            Destroy(gameObject);
        }


        public void OnExplosion(Vector3 position, float power)
        {
            if (m_HP <= 0)
                return;
            m_HP -= (int)power;
            if (m_HP <= 0)
                Die();
            else
                Hit();
        }
    }
}