using System;
using System.Collections;
using Cinemachine;
using Sirenix.OdinInspector;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.Serialization;

// ReSharper disable once CheckNamespace
namespace BlueWaterProject
{
    public class CameraController : MonoBehaviour
    {
        public Camera MainCam { get; private set; }
        [Title("Dredge Cam")]
        [Required("드렛지 카메라를 넣어주세요.")]
        public CinemachineVirtualCamera dredgeCam;
        private CinemachineOrbitalTransposer dredgeCamOrbitalTransposer;
        [Range(0,1000)]
        public int rotateSpeed = 10;
        private Coroutine currentCoroutine;
    
        [Required("습격모드 카메라를 넣어주세요.")] 
        [field: SerializeField] public CinemachineFreeLook AssaultCam { get; set; }
    
        [Required("보트갑판 카메라를 넣어주세요.")]
        public CinemachineVirtualCamera shipDeckCam;
    
        [Required("조준 카메라를 넣어주세요.")]
        public CinemachineFreeLook takeAimCam;

        [Required("보트안 카메라를 넣어주세요.")]
        public CinemachineVirtualCamera inShipCam;
    
        public float sensitivity = 0.01f;
    
        [MinMaxSlider(2, 50, true)]
        public Vector2 heightLimits = new Vector2(2, 50);

        private void Awake()
        {
            MainCam = Camera.main;
        }

        private void Start()
        {
            dredgeCamOrbitalTransposer = dredgeCam.GetCinemachineComponent<CinemachineOrbitalTransposer>();
        }

        private void Update()
        {
            TakeCamMovement();
            DredgeCamRotate();
            AssaultCamRotate();
        }

        public void CamAssaultMode()
        {
            AssaultCam.Priority = 1;
            dredgeCam.Priority = 0;
            shipDeckCam.Priority = 0;
            inShipCam.Priority = 0;
        }
    
        public void CamDredgeMode()
        {
            dredgeCam.Priority = 1;
            AssaultCam.Priority = 0;
            shipDeckCam.Priority = 0;
            inShipCam.Priority = 0;
        }
    
        public void CamShipDeckMode()
        {
            shipDeckCam.Priority = 1;
            dredgeCam.Priority = 0;
            AssaultCam.Priority = 0;
            inShipCam.Priority = 0;
        }
        
        public void CamInShipMode()
        {
            inShipCam.Priority = 1;
            dredgeCam.Priority = 0;
            AssaultCam.Priority = 0;
            shipDeckCam.Priority = 0;
        }

        private void TakeCamMovement()
        {
            Vector2 mouseDelta = Mouse.current.delta.ReadValue();

            Vector3 newPosition = takeAimCam.transform.position;
            newPosition.y += mouseDelta.y * sensitivity;
            newPosition.y = Mathf.Clamp(newPosition.y, heightLimits.x, heightLimits.y);
            newPosition.x = GameManager.Inst.shipPlayer.transform.position.x;
            newPosition.z = GameManager.Inst.shipPlayer.transform.position.z;
            takeAimCam.transform.position = newPosition;


            // Rotate around Y axis (Up direction)
            takeAimCam.transform.RotateAround(takeAimCam.transform.position, Vector3.up, mouseDelta.x * sensitivity);
        }

        public void CamTakeAim(bool isTakeAim)
        {
            takeAimCam.Priority = isTakeAim ? 2 : 0;
            float yRotation = dredgeCam.transform.rotation.eulerAngles.y;
            takeAimCam.transform.rotation =
                Quaternion.Euler(takeAimCam.transform.rotation.eulerAngles.x, yRotation, takeAimCam.transform.rotation.eulerAngles.z);
        }
    
        private void DredgeCamRotate()
        {
            if (Input.GetMouseButtonDown(1))
            {
                //dredgeCam의 X Axis의 Speed를 변경
                dredgeCamOrbitalTransposer.m_XAxis.m_MaxSpeed = rotateSpeed;
                dredgeCamOrbitalTransposer.m_XAxis.m_InputAxisName = "Mouse X";
                dredgeCamOrbitalTransposer.m_RecenterToTargetHeading.m_enabled = false;
            }
            else if (Input.GetMouseButtonUp(1))
            {
                //dredgeCam의 X Axis의 Speed를 원래대로
                dredgeCamOrbitalTransposer.m_XAxis.m_MaxSpeed = 0;
                dredgeCamOrbitalTransposer.m_XAxis.m_InputAxisName = "";
                dredgeCamOrbitalTransposer.m_RecenterToTargetHeading.m_enabled = true;
            }
        }

        private void AssaultCamRotate()
        {
            if (Input.GetMouseButtonDown(1))
            {
                //AssaultCam의 X Axis의 Speed를 변경
                AssaultCam.m_XAxis.m_MaxSpeed = 150;
                AssaultCam.m_XAxis.m_InputAxisName = "Mouse X";
                
                //AssaultCam의 Y Axis의 Speed를 변경
                AssaultCam.m_YAxis.m_MaxSpeed = 2;
                AssaultCam.m_YAxis.m_InputAxisName = "Mouse Y";
                
                AssaultCam.m_RecenterToTargetHeading.m_enabled = false;
            }
            else if (Input.GetMouseButtonUp(1))
            {
                //AssaultCam의 X Axis의 Speed를 원래대로
                AssaultCam.m_XAxis.m_MaxSpeed = 0;
                AssaultCam.m_XAxis.m_InputAxisName = "";
                
                //AssaultCam의 Y Axis의 Speed를 원래대로
                AssaultCam.m_YAxis.m_MaxSpeed = 0;
                AssaultCam.m_YAxis.m_InputAxisName = "";
                
                AssaultCam.m_RecenterToTargetHeading.m_enabled = true;
            }
        }

        public void ChangeInShipFollowOffset()
        {
            if (!GameManager.Inst.IsInShipMode) return;
            Vector3 targetOffset = new Vector3(0, 7, -10);
            StartSmoothTransition(targetOffset);
        }

        public void RestoreInShipFollowOffset()
        {
            if (!GameManager.Inst.IsInShipMode) return;
            Vector3 targetOffset = new Vector3(0, 20, -10);
            StartSmoothTransition(targetOffset);
        }

        private void StartSmoothTransition(Vector3 targetOffset)
        {
            if (currentCoroutine != null)
            {
                StopCoroutine(currentCoroutine);
            }
            currentCoroutine = StartCoroutine(SmoothTransition(targetOffset));
        }

        private IEnumerator SmoothTransition(Vector3 targetOffset)
        {
            var transposer = inShipCam.GetCinemachineComponent<CinemachineTransposer>();
            if (transposer != null)
            {
                var elapsedTime = 0f;
                var duration = .25f;  // 이 값은 원하는 대로 설정하십시오. 이 값은 전환에 걸리는 시간을 결정합니다.
                var startingOffset = transposer.m_FollowOffset;

                while (elapsedTime < duration)
                {
                    transposer.m_FollowOffset = Vector3.Lerp(startingOffset, targetOffset, elapsedTime / duration);
                    elapsedTime += Time.deltaTime;
                    yield return null;
                }
                transposer.m_FollowOffset = targetOffset;  // Lerp가 완료되면 목표 오프셋을 확실히 설정합니다.
            }
        }
    }
}