using UnityEngine;
using UnityEngine.Events;
using System;
using Cinemachine;
public class HealthComponent : MonoBehaviour
{
    [SerializeField] float startHealth = 100;

    public float currentHealth { get; private set; }

    public static event Action<Vector3, float> OnHealthChangeAtPos;

    public float StartHealth => startHealth;
    public UnityEvent OnHealthZero;
    public UnityEvent<float, float> OnHealthChange;
    public UnityEvent<float> OnHealthChange2;
    public UnityEvent OnHealthChange3;

    void Awake()
    {
        currentHealth = startHealth;
    }

    public void TakeDamage(float damage)
    {
        OnHealthChange?.Invoke(currentHealth, currentHealth - damage);
        OnHealthChange2?.Invoke(currentHealth - damage);
        OnHealthChange3.Invoke();
        OnHealthChangeAtPos?.Invoke(transform.position, currentHealth - damage);
        currentHealth -= damage;

        currentHealth = (int)Mathf.Clamp(currentHealth, 0f, startHealth);
        if (currentHealth == 0)
            OnHealthZero?.Invoke();
    }

    public void SimpleKill()
    {
        CameraShake.instance.ShakeCamera(0.5f, 0.2f);

        var cam = CinemachineCore.Instance.GetActiveBrain(0).ActiveVirtualCamera.Priority -= 1;

        CinemachineCore.Instance.GetActiveBrain(0).ActiveVirtualCamera.VirtualCameraGameObject.GetComponent<CinemachineCameraOffset>().m_Offset.z = TowerCam.instance.originalOffset;

        HideWall.instance.target = null;

        Destroy(gameObject);
    }
}