using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using InfallibleCode;

public class ItemsInHandsData : MonoBehaviour
{
    public bool CanGetLamp = true;
    public bool HasLampInHands;
    public Transform playerLeftHandPOS;
    public Transform CurrentBulb;
    public LightBulbEmissionUpdate CurrentLightBulbEmissionUpdate;
    public SanityActivation CurrentBulbSanityActivation;
    public float ChangeBulb_LerpItem;
    public Quaternion _bulbRotationInHands;
    public LeaveLampInHolder CurrentLeaveLampInHolder;
    public List<Light> CurrentBulbLight;

    private static ItemsInHandsData _instance;
    public static ItemsInHandsData GetInstance() { return _instance; }

    void Awake()
    {
        if (!_instance)
        {
            _instance = this;
        }
        _bulbRotationInHands = new Quaternion(-180f, 0f, 0f, 0f); //Sets the X rotation of the bulb when the player holds it.
    }

    private void Start()
    {
        playerLeftHandPOS = PlayerManager.GetInstance().playerGameObj.transform.Find("Main Camera/LeftHandItemsPos");
    }

    public IEnumerator GetLamp()
    {
        CurrentBulbSanityActivation.DisableSanityTrigger();
        #region Emission Disable
        CurrentLightBulbEmissionUpdate.UpdateEmission = false;
        CurrentLightBulbEmissionUpdate.EmissionIsDisabled();
        #endregion
        CurrentLeaveLampInHolder = CurrentBulb.GetComponentInParent<LeaveLampInHolder>();
        if (CurrentLeaveLampInHolder != null)
        {
            CurrentLeaveLampInHolder._hasLampInHolder = false;
        }

        CurrentBulb.parent = playerLeftHandPOS; //Set the parent for the bulb. Now the bulb is in the PlayerLeftHandPOS.
        CurrentBulb.localScale = new Vector3(1, 1, 1); //Set scale to 1.

        foreach (Light light in CurrentBulbLight)
        {
            light.enabled = false;
        }
        yield return new WaitForSeconds(0.1f); //After ... seconds:
        while (ChangeBulb_LerpItem <= 1.0f)
        {
            ChangeBulb_LerpItem += 0.8f * Time.deltaTime;
            CurrentBulb.localPosition = Vector3.Lerp(CurrentBulb.localPosition, Vector3.zero, ChangeBulb_LerpItem);
            CurrentBulb.localRotation = Quaternion.Lerp(CurrentBulb.localRotation, _bulbRotationInHands, ChangeBulb_LerpItem);
            HasLampInHands = true;
            Debug.Log("Is lerping item in hand");
            yield return null;
        }
    }

    public IEnumerator LeaveLamp(Transform lampHolder)
    {
        CurrentBulb.parent = lampHolder;
        CurrentBulb.localScale = new Vector3(1, 1, 1);
        yield return new WaitForSeconds(0.1f);
        while (ChangeBulb_LerpItem <= 1.0f)
        {
            ChangeBulb_LerpItem += 0.8f * Time.deltaTime;
            CurrentBulb.localPosition = Vector3.Lerp(CurrentBulb.localPosition, Vector3.zero, ChangeBulb_LerpItem);
            CurrentBulb.localRotation = Quaternion.Lerp(CurrentBulb.localRotation, lampHolder.localRotation, ChangeBulb_LerpItem);
            HasLampInHands = false;

            if (CurrentBulb.localPosition ==  Vector3.zero) 
            {
                CanGetLamp = true;
                CurrentBulbSanityActivation.EnableSanityTrigger();
                #region Emission Enable
                CurrentLightBulbEmissionUpdate.UpdateEmission = true;
                CurrentLightBulbEmissionUpdate.EmissionIsEnabled();
                #endregion
                foreach (Light light in CurrentBulbLight)
                {
                    light.enabled = true;         
                }
                if (AllLightsAreEnabled())
                {
                    CurrentBulbLight.Clear();
                }
            }
            Debug.Log("Is lerping item in Holder");
            yield return null;
        }
    }

    public bool AllLightsAreEnabled()
    {
        for (int i = 0; i < CurrentBulbLight.Count; ++i)
        {
            if (CurrentBulbLight[i].enabled == true)
            {
                return true;
            }
        }

        return false;
    }
}