using UnityEngine;
using Unity.Netcode;

namespace Colosseum.Player
{
    /// <summary>
    /// 플레이어 애니메이션 컨트롤러
    /// 이동 속도에 따라 Idle/Walk/Run 애니메이션 제어
    /// </summary>
    [RequireComponent(typeof(Animator))]
    [RequireComponent(typeof(PlayerMovement))]
    public class PlayerAnimationController : NetworkBehaviour
    {
        [Header("Animation Parameters")]
        [SerializeField] private string speedParam = "Speed";
        [SerializeField] private string isGroundedParam = "IsGrounded";
        [SerializeField] private string jumpTriggerParam = "Jump";
        [SerializeField] private string landTriggerParam = "Land";

        [Header("Settings")]
        [SerializeField] private float speedSmoothTime = 0.1f;

        private Animator animator;
        private PlayerMovement playerMovement;
        private CharacterController characterController;
        private float currentSpeed;
        private float speedVelocity;
        private bool wasGrounded = true;
        private bool isJumpingAnimation;

        private void Awake()
        {
            animator = GetComponent<Animator>();
            playerMovement = GetComponent<PlayerMovement>();
            characterController = GetComponent<CharacterController>();
        }

        public override void OnNetworkSpawn()
        {
            if (!IsOwner)
            {
                enabled = false;
            }
        }

        private void Update()
        {
            if (!IsOwner) return;

            UpdateAnimationParameters();
        }

        private void UpdateAnimationParameters()
        {
            // PlayerMovement에서 직접 속도 가져오기
            float targetSpeed = playerMovement.CurrentMoveSpeed;

            // 부드러운 속도 변화
            currentSpeed = Mathf.SmoothDamp(currentSpeed, targetSpeed, ref speedVelocity, speedSmoothTime);

            // 지면 접촉 상태
            bool isGrounded = characterController.isGrounded;

            // 착지 감지 (공중에서 지면으로)
            if (!wasGrounded && isGrounded && isJumpingAnimation)
            {
                PlayLand();
            }

            // 애니메이터 파라미터 설정
            animator.SetFloat(speedParam, currentSpeed);
            animator.SetBool(isGroundedParam, isGrounded);

            wasGrounded = isGrounded;
        }

        /// <summary>
        /// 점프 애니메이션 트리거 (외부에서 호출)
        /// </summary>
        public void PlayJump()
        {
            if (IsOwner)
            {
                isJumpingAnimation = true;
                animator.SetTrigger(jumpTriggerParam);
            }
        }

        /// <summary>
        /// 착지 애니메이션 트리거
        /// </summary>
        private void PlayLand()
        {
            isJumpingAnimation = false;
            animator.SetTrigger(landTriggerParam);
        }
    }
}