// CockpitGateHUD.cs
// Zweck: Kleines HUD im Cockpit, das aktuell fokussierten Gate-Text einblendet (mit Reveal-Animation).
using System.Collections;
using TMPro;
using UnityEngine;

public class CockpitGateHUD : MonoBehaviour
{
    [Header("Refs")]
    [SerializeField] private TMP_Text label;        // Textanzeige
    [SerializeField] private CanvasGroup group;     // Sichtbarkeit/Interaktion
    [SerializeField] private AudioSource sfx;       // optional
    [SerializeField] private AudioClip revealSfx;   // optional: kurzer Blip

    [Header("Timings")]
    [SerializeField] private float revealTime = 0.45f; // Dauer des Reveals

    [Header("Curves")]
    [SerializeField] private AnimationCurve scaleCurve = AnimationCurve.EaseInOut(0, 0.7f, 1, 1.02f);
    [SerializeField] private AnimationCurve alphaCurve = AnimationCurve.EaseInOut(0, 0f, 1, 1f);

    [Header("Debug")]
    [SerializeField] private bool debugLogs = false;

    private RectTransform _rt;
    private Coroutine _revealCo;
    private Vector3 _baseScale;

    private void Awake()
    {
        if (!group) group = GetComponent<CanvasGroup>();
        _rt = GetComponent<RectTransform>();
        if (!_rt) _rt = gameObject.AddComponent<RectTransform>();
        _baseScale = _rt.localScale;

        // Startzustand: versteckt
        if (group)
        {
            group.alpha = 0f;
            group.interactable = false;
            group.blocksRaycasts = false;
        }
    }

    // Sofort anzeigen (ohne Reveal)
    public void Show(string text)
    {
        if (debugLogs) Debug.Log($"[CockpitGateHUD] Show: \"{text}\"");
        if (label) label.text = text;
        StopReveal();

        if (group)
        {
            group.alpha = 1f;
            group.interactable = false;
            group.blocksRaycasts = false;
        }

        if (_rt) _rt.localScale = _baseScale;
    }

    // Mit Reveal-Animation zeigen
    public void ShowWithReveal(string text)
    {
        if (debugLogs) Debug.Log($"[CockpitGateHUD] ShowWithReveal: \"{text}\"");
        if (label) label.text = text;

        StopReveal();
        _revealCo = StartCoroutine(Co_Reveal());
    }

    // Verstecken (sofort)
    public void Hide()
    {
        if (debugLogs) Debug.Log("[CockpitGateHUD] Hide");
        StopReveal();

        if (group)
        {
            group.alpha = 0f;
            group.interactable = false;
            group.blocksRaycasts = false;
        }

        if (_rt) _rt.localScale = _baseScale;
    }

    private void StopReveal()
    {
        if (_revealCo != null) StopCoroutine(_revealCo);
        _revealCo = null;
    }

    private IEnumerator Co_Reveal()
    {
        // Vorbereitung
        if (group)
        {
            group.alpha = 0f;
            group.interactable = false;
            group.blocksRaycasts = false;
        }

        if (_rt) _rt.localScale = _baseScale * scaleCurve.Evaluate(0f);

        // Sound
        if (sfx && revealSfx) sfx.PlayOneShot(revealSfx, 0.6f);

        float t = 0f;
        while (t < revealTime)
        {
            t += Time.deltaTime;
            float n = Mathf.Clamp01(t / revealTime);

            if (group) group.alpha = alphaCurve.Evaluate(n);
            if (_rt) _rt.localScale = _baseScale * scaleCurve.Evaluate(n);

            yield return null;
        }

        if (group) group.alpha = 1f;
        if (_rt) _rt.localScale = _baseScale;

        _revealCo = null;
    }
}