using System.Collections;
using System.Collections.Generic;
using Cinemachine;
using Sirenix.OdinInspector;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

// ReSharper disable once CheckNamespace
namespace BlueWaterProject
{
    public class CombatCamera : MonoBehaviour
    {
        [Title("초기화 방식")]
        [SerializeField] private bool autoInit = true;
        
        [field: Title("카메라")]
        [field: SerializeField] public CinemachineVirtualCamera BaseCombatCamera { get; private set; }
        
        private GameObject cinemachineCameras;
        private List<CinemachineVirtualCamera> cineCamList;
        private Vignette vignette;
        private Coroutine lowHpVignetteCoroutine;

        private float originalRotation;
        
        private const int CINE_CAM_NUM = 1;
        
        private void Awake()
        {
            if (autoInit)
            {
                Init();
            }
            
            CameraManager.Inst.CombatCamera = this;
            CameraManager.Inst.MainCam = Camera.main;
            
            vignette = GetEffect<Vignette>();
            vignette.active = false;
        }
        
        [Button("셋팅 초기화")]
        private void Init()
        {
            cinemachineCameras = GameObject.Find("CinemachineCameras");
            if (!cinemachineCameras)
            {
                Debug.LogError("cineCams is null error");
                return;
            }

            BaseCombatCamera = cinemachineCameras.transform.Find("BaseCombatCamera")?.GetComponent<CinemachineVirtualCamera>();
            if (!BaseCombatCamera)
            {
                Debug.LogError("BaseShipCam is null error");
                return;
            }
            
            cineCamList = new List<CinemachineVirtualCamera>(CINE_CAM_NUM)
            {
                BaseCombatCamera
            };

            foreach (var cam in cineCamList)
            {
                cam.Priority = 0;
            }

            BaseCombatCamera.Priority = 1;

            CameraManager.Inst.MainCam = Camera.main;
        }

        public void SetFollowAndLookAt(Transform target)
        {
            BaseCombatCamera.Follow = target;
            //BaseCombatCamera.LookAt = target;
        }
        
        #region PostProcessing

        public void ToggleEffect<T>(bool value) where T : VolumeComponent
        {
            var effect = GetEffect<T>();
            if (effect == null)
            {
                print(typeof(T) + "효과가 없습니다.");
                return;
            }
            effect.active = value;
        }

        private T GetEffect<T>() where T : VolumeComponent
        {
            var postProcessVolume = FindAnyObjectByType<Volume>();
            if (postProcessVolume == null)
            {
                print("Volume 컴포넌트를 가진 오브젝트가 없습니다.");
                return null;
            }
            postProcessVolume.profile.TryGet(out T effect);
            return effect;
        }

        public void LowHpVignette()
        {
            if (lowHpVignetteCoroutine == null)
            {
                lowHpVignetteCoroutine = StartCoroutine(LowHpVignetteCoroutine());
            }
        }

        public void StopLowHpVignette()
        {
            if (lowHpVignetteCoroutine != null)
            {
                StopCoroutine(lowHpVignetteCoroutine);
                lowHpVignetteCoroutine = null;
                
                vignette.active = false;
            }
        }

        private IEnumerator LowHpVignetteCoroutine()
        {
            var startValue = 0.2f;
            var endValue = 0.3f;
            var time = 0f;
            
            vignette.intensity.value = startValue;
            vignette.active = true;
            
            while (true)
            {
                time += Time.deltaTime * 2f;
                vignette.intensity.value = Mathf.Lerp(startValue, endValue, time);
                if (time >= 1f)
                {
                    (startValue, endValue) = (endValue, startValue);
                    time = 0f;
                }
                yield return null;
            }
        }

        #endregion
    }
}