using UnityEngine;
using UnityEngine.UI;

public class PlayerHealthUI : MonoBehaviour
{
    [Header("Ссылки")]
    public PlayerHealth playerHealth;
    public Slider healthSlider;
    public Image healthFillImage;
    public Text healthText;

    [Header("Настройки визуала")]
    public bool smoothTransition = true;
    public float smoothSpeed = 5f;
    public bool changeColorWithHealth = true;
    public Color highHealthColor = new Color(0.2f, 0.85f, 0.3f, 1f); // Зеленый
    public Color lowHealthColor = new Color(0.9f, 0.2f, 0.2f, 1f);  // Красный

    private float currentFill = 1f;

    void Start()
    {
        if (playerHealth == null)
        {
            playerHealth = FindAnyObjectByType<PlayerHealth>();
        }

        UpdateHealthUI(true);
    }

    void Update()
    {
        UpdateHealthUI(false);
    }

    private void UpdateHealthUI(bool immediate)
    {
        if (playerHealth == null) return;

        float maxHp = playerHealth.maxHealth;
        float currentHp = Mathf.Max(0f, playerHealth.CurrentHealth);
        float targetFill = maxHp > 0f ? currentHp / maxHp : 0f;

        if (immediate || !smoothTransition)
        {
            currentFill = targetFill;
        }
        else
        {
            currentFill = Mathf.MoveTowards(currentFill, targetFill, smoothSpeed * Time.deltaTime);
        }

        if (healthSlider != null)
        {
            healthSlider.value = currentFill;
        }

        if (healthFillImage != null)
        {
            healthFillImage.fillAmount = currentFill;

            if (changeColorWithHealth)
            {
                healthFillImage.color = Color.Lerp(lowHealthColor, highHealthColor, currentFill);
            }
        }

        if (healthText != null)
        {
            healthText.text = $"{Mathf.CeilToInt(currentHp)} / {Mathf.CeilToInt(maxHp)}";
        }
    }
}