using UnityEngine;
using UnityEngine.UI;

public class SegmentedHealthUI : MonoBehaviour
{
    public Image[] healthBoxes; // assign 15 boxes
    public Health playerHealth; // drag player here

    private int maxSegments;

    void Start()
    {
        maxSegments = healthBoxes.Length;

        InvokeRepeating(nameof(FindPlayerHealth), 0f, 0.5f);
    }

    void FindPlayerHealth()
    {
        PlayerControllerNewRohan player =
            FindObjectOfType<PlayerControllerNewRohan>();

        if (player == null)
        {
            Debug.LogWarning("Player not found.");
            return;
        }

        playerHealth = player.GetComponent<Health>();

        if (playerHealth == null)
        {
            Debug.LogWarning("Health component not found.");
            return;
        }

        playerHealth.OnHealthChanged += UpdateHealthUI;

        UpdateHealthUI(
            playerHealth.currentHealth,
            playerHealth.maxHealth
        );
    }

    void UpdateHealthUI(float current, float max)
    {
        float healthPercent = current / max;

        int activeBoxes = Mathf.CeilToInt(healthPercent * maxSegments);

        for (int i = 0; i < healthBoxes.Length; i++)
        {
            healthBoxes[i].enabled = i < activeBoxes;
        }
    }

    void OnDestroy()
    {
        if (playerHealth != null)
            playerHealth.OnHealthChanged -= UpdateHealthUI;
    }
}