using UnityEngine;
using UnityEngine.XR;
using Fusion;
using TMPro;
using Fusion.Addons.ConnectionManagerAddon;

namespace BNG
{
    public class Chair : NetworkBehaviour
    {
        public Transform player;
        public Transform sitMan;

        private UnityEngine.XR.InputDevice leftController;

        [Networked] public bool networkedFill { get; set; }

        public RTLTMPro.RTLTextMeshPro text;

        public bool near;

        void Start()
        {
            if (!text)
                text = GetComponentInChildren<RTLTMPro.RTLTextMeshPro>();

            leftController = InputDevices.GetDeviceAtXRNode(XRNode.LeftHand);

            GameObject playerObj = GameObject.FindGameObjectWithTag("Player");
            if (playerObj)
                player = playerObj.transform;
        }

        void Update()
        {
            if (!Object || !Object.IsValid)
                return;

            if (!player)
                return;

            near = Vector3.Distance(transform.position, player.transform.position) < 1.5f;

            // Change text color based on proximity
            Color nearColor = near ? Color.yellow : Color.white;
            nearColor.a = 0.6f;
            text.color = nearColor;

            if (!ConnectionManager.instance.runner.IsRunning || (player.GetComponent<BNG.SmoothLocomotion>().sit && !networkedFill))
                return;

            text.gameObject.SetActive(!networkedFill);

            if (near)
            {
                bool isPressed = false;
                if (leftController.TryGetFeatureValue(CommonUsages.primaryButton, out bool buttonPressed))
                {
                    isPressed = buttonPressed;
                }

                if (isPressed || Input.GetKeyDown(KeyCode.T))
                {
                    SetSit();
                }
            }
        }

        public void SetSit()
        {
            if (!Object || !Object.IsValid)
                return;

            if (!ConnectionManager.instance.runner.IsRunning || (player.GetComponent<BNG.SmoothLocomotion>().sit && !networkedFill))
                return;

            Debug.Log("Sit/Stand button was pressed!");

            if (!player.GetComponent<BNG.SmoothLocomotion>().sit)
            {
                sitMan = player;

                // Align player position with chair
                
                player.GetComponent<BNG.SmoothLocomotion>().sit = true;
                player.GetComponent<BNG.PlayerTeleport>().chair = this;
                player.GetComponent<Rigidbody>().isKinematic = true;
                player.position = new Vector3(transform.position.x, transform.position.y, transform.position.z);
                

                SetFill(true); // Chair is now filled
            }
            else if (networkedFill && sitMan == player && !ConnectionManager.instance.presentation)
            {
                Invoke("StandUp", 0.3f);
            }
        }

        public void StandUp()
        {
            if (!Object || !Object.IsValid)
                return;

            sitMan = null;
            SetFill(false); // Chair is now empty
            player.GetComponent<BNG.SmoothLocomotion>().sit = false;
            player.GetComponent<BNG.SmoothLocomotion>().MaxVerticalVelocity = 10;
            player.GetComponent<Rigidbody>().isKinematic = false;
        }

        void SetFill(bool value)
        {
            if (!Object || !Object.IsValid)
                return;

            networkedFill = value;
            Debug.Log("SetFill called with value: " + value);
        }
    }
}