using NightclubArcadia.Core;
using TMPro;
using UnityEngine;

namespace NightclubArcadia.Interaction
{
    /// <summary>
    /// The "[F]" that appears when the player is close enough to interact, showing the
    /// glyph for whichever input device was last used.
    ///
    /// Separated from the interactor so the prompt can be positioned and styled in a
    /// prefab rather than constructed in code, and so anything else that needs a
    /// proximity prompt can reuse it.
    /// </summary>
    [RequireComponent(typeof(TextMeshPro))]
    public sealed class InteractionPrompt : MonoBehaviour
    {
        TextMeshPro text;
        bool shown;

        void Awake()
        {
            text = GetComponent<TextMeshPro>();
            SetShown(false);
        }

        public void SetShown(bool value)
        {
            shown = value;
            if (text != null)
            {
                text.enabled = value;
            }
        }

        void Update()
        {
            if (shown && text != null)
            {
                text.text = GlyphFor(InputDeviceTracker.Current);
            }
        }

        static string GlyphFor(InputDeviceTracker.DeviceType type)
        {
            switch (type)
            {
                case InputDeviceTracker.DeviceType.Xbox: return "(X)";
                case InputDeviceTracker.DeviceType.PlayStation: return "(✕)";
                default: return "[F]";
            }
        }
    }
}