using UnityEngine;
using UnityEngine.InputSystem; // Input Systemを使うために必要
using UnityEngine.XR;          // 振動機能のために必要

[RequireComponent(typeof(Collider))]
[RequireComponent(typeof(Rigidbody))]
public class VRInputPunch : MonoBehaviour
{
    [SerializeField] private InputActionProperty velocityAction;

    [SerializeField] private XRNode controllerNode = XRNode.RightHand;

    [SerializeField] private VRInputPoseDetector poseDetector;

    [SerializeField] private float minPunchSpeed = 2.0f; //パンチとして判定する最低速度 (m/s)
    
    [SerializeField] private float damageMultiplier = 10.0f; //ダメージ倍率

    [SerializeField] private float hapticAmplitude = 0.5f; //振動の強さ
    [SerializeField] private float hapticDuration = 0.1f; //振動の長さ

    private void OnEnable()
    {
        if (velocityAction.action != null)
        {
            velocityAction.action.Enable();
        }
    }

    private void OnDisable()
    {
        if (velocityAction.action != null)
        {
            velocityAction.action.Disable();
        }
    }

    void Start()
    {
        Rigidbody rb = GetComponent<Rigidbody>();
        rb.isKinematic = true; 
        rb.useGravity = false;
        GetComponent<Collider>().isTrigger = true;
    }

    private void OnTriggerEnter(Collider other)
    {
        Vector3 velocity = velocityAction.action.ReadValue<Vector3>();
        
        float speed = velocity.magnitude;

        Debug.Log($"[InputSystem接触] {other.name} に触れました。センサー速度: {speed:F2} m/s");

        if (speed >= minPunchSpeed)
        {
            IDamageble damageble = other.GetComponentInParent<IDamageble>();

            if (damageble != null)
            {
                DamageInfo info = new DamageInfo();
                if(poseDetector.IsPosing)
                {
                    info.amount = (speed * damageMultiplier) * 2f;
                    info.isPoseBonus = true;
                }
                else
                {
                    info.amount = speed * damageMultiplier;
                    info.isPoseBonus = false;
                }
                info.hitPosition = other.transform.position;
                info.punchDirection = velocity.normalized; //パンチの進む向き
                damageble.TakeDamage(info);
                Debug.Log("パンチ成功 ダメージ: {damage:F1}");
                
                TriggerHaptics();
            }
            else
            {
                Debug.Log("スピードが足りません。必要: {minPunchSpeed} / 現在: {speed:F2}");
            }
        }
    }

    // コントローラーを振動させる処理
    private void TriggerHaptics()
    {
        UnityEngine.XR.InputDevice device = InputDevices.GetDeviceAtXRNode(controllerNode);
        if (device.isValid)
        {
            device.SendHapticImpulse(0, hapticAmplitude, hapticDuration);
        }
    }
}