using NightclubArcadia.UI;
using UnityEngine;

namespace NightclubArcadia.UI.HUD
{
    /// <summary>
    /// Bottom-right player portrait. Visible only when dialogue is inactive
    /// and the player menu is closed.
    /// </summary>
    public sealed class PortraitHudView : MonoBehaviour
    {
        [SerializeField] GameObject panelRoot;

        void OnEnable()
        {
            if (UIStateController.Instance != null)
            {
                UIStateController.Instance.StateChanged += OnStateChanged;
            }
        }

        void Start()
        {
            // Re-subscribe in case Instance was not ready during OnEnable,
            // and apply the initial visibility.
            if (UIStateController.Instance != null)
            {
                UIStateController.Instance.StateChanged -= OnStateChanged;
                UIStateController.Instance.StateChanged += OnStateChanged;
            }

            ApplyVisibility();
        }

        void OnDisable()
        {
            if (UIStateController.Instance != null)
            {
                UIStateController.Instance.StateChanged -= OnStateChanged;
            }
        }

        void OnStateChanged() => ApplyVisibility();

        void ApplyVisibility()
        {
            if (panelRoot == null)
            {
                return;
            }

            var state = UIStateController.Instance;
            var visible = state == null || (!state.IsDialogueActive && !state.IsMenuOpen);

            if (visible)
            {
                PanelVisibility.Show(panelRoot);
            }
            else
            {
                PanelVisibility.Hide(panelRoot);
            }
        }
    }
}