using Unity.Netcode;
using UnityEngine;
using UnityEngine.InputSystem;

public sealed class PlayerHandController : NetworkBehaviour, IPlayerSystem
{
    [SerializeField] private Transform itemSocket;

    private bool isInitialized;

    public Transform ItemSocket => itemSocket;

    public void Initialize(PlayerFacade facade)
    {
        if (itemSocket == null)
        {
            Transform candidate = transform.Find("HandItemSocket");
            if (candidate != null)
                itemSocket = candidate;
        }

        isInitialized = itemSocket != null;
    }

    private void Update()
    {
        if (!isInitialized || !IsOwner || Keyboard.current == null)
            return;

        if (!NetworkHandItemInteractable.TryGetHeldItem(
                OwnerClientId,
                out NetworkHandItemInteractable heldItem))
        {
            return;
        }

        if (Mouse.current != null && Mouse.current.leftButton.wasPressedThisFrame)
            heldItem.RequestUse();

        if (Keyboard.current.gKey.wasPressedThisFrame)
            heldItem.RequestThrow();
    }

    private void OnGUI()
    {
        if (!IsOwner ||
            !NetworkHandItemInteractable.TryGetHeldItem(
                OwnerClientId,
                out NetworkHandItemInteractable heldItem))
        {
            return;
        }

        GUIStyle style = new(GUI.skin.label)
        {
            alignment = TextAnchor.MiddleCenter,
            fontSize = 15,
            normal = { textColor = Color.white }
        };

        Rect area = new(0f, Screen.height * 0.68f, Screen.width, 28f);
        GUI.Label(area, $"{heldItem.ItemName}  [LMB] Use  [G] Throw", style);
    }
}