using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// 召唤师专属血条 UI：顶部 HUD 显示双方召唤师血量，区别于单位头顶血条。
/// </summary>
public class SummonerHealthBarUI : MonoBehaviour
{
    [Header("UI 引用")]
    public Image playerHealthFill;
    public Image enemyHealthFill;
    public Text playerHealthText;
    public Text enemyHealthText;

    [Header("召唤师引用")]
    public GameObject playerSummoner;
    public GameObject enemySummoner;

    private WorldHealthBar playerHealthBar;
    private WorldHealthBar enemyHealthBar;

    private void Start()
    {
        // 获取双方召唤师的血条组件
        if (playerSummoner != null)
        {
            playerHealthBar = playerSummoner.GetComponent<WorldHealthBar>();
        }

        if (enemySummoner != null)
        {
            enemyHealthBar = enemySummoner.GetComponent<WorldHealthBar>();
        }
    }

    private void Update()
    {
        UpdateHealthBar(playerHealthBar, playerHealthFill, playerHealthText);
        UpdateHealthBar(enemyHealthBar, enemyHealthFill, enemyHealthText);
    }

    private void UpdateHealthBar(WorldHealthBar healthBar, Image fillImage, Text healthText)
    {
        if (healthBar == null || fillImage == null) return;

        float ratio = healthBar.currentHealth / healthBar.maxHealth;
        fillImage.fillAmount = ratio;

        if (healthText != null)
        {
            healthText.text = $"{Mathf.CeilToInt(healthBar.currentHealth)}/{Mathf.CeilToInt(healthBar.maxHealth)}";
        }
    }
}