using TMPro;
using UnityEngine;

public class GameHUD : MonoBehaviour
{
    [SerializeField] private Health playerHealth;
    [SerializeField] private GameManager gameManager;
    [SerializeField] private TMP_Text hitPointText;
    [SerializeField] private TMP_Text timeText;
    [SerializeField] private TMP_Text stateText;

    private void OnEnable()
    {
        if (playerHealth != null)
        {
            playerHealth.Changed += SetHitPoint;
            SetHitPoint(playerHealth.CurrentHitPoint, playerHealth.MaxHitPoint);
        }

        if (gameManager != null)
        {
            gameManager.TimeChanged += SetTime;
            gameManager.StateChanged += SetState;
            SetTime(gameManager.RemainingTime);
            SetState(gameManager.State);
        }
    }

    private void OnDisable()
    {
        if (playerHealth != null)
        {
            playerHealth.Changed -= SetHitPoint;
        }

        if (gameManager != null)
        {
            gameManager.TimeChanged -= SetTime;
            gameManager.StateChanged -= SetState;
        }
    }

    private void SetHitPoint(int current, int max)
    {
        if (hitPointText != null)
        {
            hitPointText.text = $"HP: {current} / {max}";
        }
    }

    private void SetTime(float remainingTime)
    {
        if (timeText != null)
        {
            timeText.text = $"TIME: {Mathf.CeilToInt(remainingTime)}";
        }
    }

    private void SetState(GameState state)
    {
        if (stateText == null)
        {
            return;
        }

        stateText.text = state switch
        {
            GameState.Clear => "CLEAR",
            GameState.GameOver => "GAME OVER",
            _ => string.Empty
        };
    }
}