using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Mirror;
using UnityEngine.Animations.Rigging;

public class Interactions2 : NetworkBehaviour
{
    [Header("Animations")]
    [SyncVar]
    private float takePropWeight = 0f;
    public Rig takePropRig;
    public Transform leftHandPos, rightHandPos;
    public GameObject _eyesObject;

    [Header("Prop Prefs")]
    public GameObject propPrefab;
    private RaycastHit _hit;
    private Rigidbody _propRB;

    [Header("Settings")]
    public float maxHitDistance = 6f;

    [Header("GUI Staff")]
    public float hitDistance;
    public bool canInterract;

    [Header("Links")]
    public StarterAssets.PersonController controller;

    private PropGrab _grabbedProp;

    void Update()
    {
        takePropRig.weight = takePropWeight;

        if (!isLocalPlayer) return;

        if (Physics.Raycast(_eyesObject.transform.position, _eyesObject.transform.TransformDirection(Vector3.forward), out _hit, maxHitDistance, LayerMask.NameToLayer("Player")))
        {
            Debug.DrawRay(_eyesObject.transform.position, _eyesObject.transform.TransformDirection(Vector3.forward) * hitDistance, Color.yellow);

            canInterract = _hit.collider.tag == "Prop" || _hit.collider.tag == "Button" ? true : false;

            if (Input.GetKey(KeyCode.E))
            {
                if (_hit.collider.tag == "Prop" && _propRB == null)
                {
                    _propRB = _hit.collider.gameObject.GetComponent<Rigidbody>();
                }
            }
        }

        hitDistance = _hit.distance > 0 ? _hit.distance : maxHitDistance;

        if (Input.GetKey(KeyCode.E))
        {
            if (_propRB != null)
            {
                Vector3 target = _eyesObject.transform.position + _eyesObject.transform.forward;

                if (isClient)
                {
                    CmdPropGrab(target, _propRB.gameObject, _eyesObject.transform.rotation);
                    SetPropRigWeight(1f);

                    CmdSetLayerMask(_propRB.gameObject, "Grab");
                }

                PropBehaviour propBehaviour = _propRB.GetComponent<PropBehaviour>();
                setHands(leftHandPos, rightHandPos, propBehaviour);
            }
        }
        else
        {
            if (isClient)
            {
                if (_propRB != null)
                {
                    CmdSetLayerMask(_propRB.gameObject, "Default");
                }

                SetPropRigWeight(0f);
            }
            _propRB = null;
        }

        if (Input.GetKeyDown(KeyCode.Q))
        {
            if (isClient)
            {
                CmdSpawnObject(_eyesObject.transform.position + _eyesObject.transform.forward, _eyesObject.transform.rotation);
            }
        }
    }

    #region Commands
    [Command]
    void CmdPropGrab(Vector3 target, GameObject prop, Quaternion dir)
    {
        RpcPropGrab(target, prop, dir);
    }

    [Command]
    void CmdSetLayerMask(GameObject gameObject, string str)
    {
        RpcSetLayerMask(gameObject, str);
    }

    [Command]
    void SetPropRigWeight(float value)
    {
        takePropWeight = value;
    }

    [Command]
    void CmdSpawnObject(Vector3 pos, Quaternion rot)
    {
        GameObject gameObject = Instantiate(propPrefab, pos, rot);
        NetworkServer.Spawn(gameObject);
    }
    #endregion

    #region Rpcs
    [ClientRpc]
    void RpcSetLayerMask(GameObject gameObject, string str)
    {
        gameObject.layer = LayerMask.NameToLayer(str);
    }

    [ClientRpc]
    void RpcPropGrab(Vector3 target, GameObject prop, Quaternion dir)
    {
        Rigidbody propRB = prop.GetComponent<Rigidbody>();

        Vector3 tarForce = target - propRB.transform.position;
        Vector3 force = (tarForce * 20f - propRB.velocity) * Time.deltaTime * 30f;

        propRB.AddForce(force, ForceMode.Impulse);

        propRB.MoveRotation(dir);
    }

    #endregion

    #region Methods

    void setHands(Transform lh, Transform rh, PropBehaviour pb)
    {
        lh.position = pb.leftHandPos.position;
        rh.position = pb.rightHandPos.position;

        lh.rotation = pb.leftHandPos.rotation;
        rh.rotation = pb.rightHandPos.rotation;
    }
    #endregion
}