using UnityEngine;
using UnityEngine.Networking;

public class WeaponSwitch : NetworkBehaviour
{

    [SyncVar] public int currentWeapon = 0;

    private PlayerShooting shootScript;
    private bool weaponEquipped;
    [SerializeField] private GameObject weaponHolder;


    private 

	// Use this for initialization
	void Start () {
        shootScript = GetComponent<PlayerShooting>();
    }

    // Update is called once per frame
    
    void Update () {

        GetWeaponInput();

    }
    
    
    void GetWeaponInput()
    {

        if (!isLocalPlayer) return;

        SelectWeapon(gameObject.name);

        int prevWeapon = currentWeapon;


        if (Input.GetAxis("Mouse ScrollWheel") > 0f)
        {
            if (currentWeapon >= weaponHolder.transform.childCount - 1)
                currentWeapon = 0;
            else
            {
                currentWeapon++;
            }
        }

        if (Input.GetAxis("Mouse ScrollWheel") < 0f)
        {
            if (currentWeapon <= 0)
                currentWeapon = weaponHolder.transform.childCount - 1;
            else
            {
                currentWeapon--;
            }
        }

        if (Input.GetKeyDown(KeyCode.L))
            currentWeapon = 0;

        if (Input.GetKeyDown(KeyCode.Alpha1))
            currentWeapon = 1;

        if (Input.GetKeyDown(KeyCode.Alpha2))
            currentWeapon = 2;

        if (Input.GetKeyDown(KeyCode.Alpha3))
            currentWeapon = 3;

        if (Input.GetKeyDown(KeyCode.Alpha4))
            currentWeapon = 4;

        weaponEquipped = currentWeapon > 0;

        if (currentWeapon != prevWeapon)
            SelectWeapon(gameObject.name);


        shootScript.weaponEquipped = weaponEquipped;

    }

    void SelectWeapon(string _playerID)
    {
        Player _player = GameManager.GetPlayer(_playerID);

        Debug.Log("Player ID: " + _player.name);

        Transform transformsInChild = _player.GetComponentInChildren<Transform>();
        foreach (Transform transformInChild in transformsInChild)
        {
            if (transformInChild.name == "_Weapons")
                weaponHolder = transformInChild.gameObject;
        }

        if (weaponHolder != null)
        {
            Debug.Log("Looping weapons...");

            int i = 0;
            foreach (Transform weapon in weaponHolder.transform)
            {
                if (i == currentWeapon)
                {
                    Debug.Log(_playerID + " equipping weapon (" + weapon.name + ")");
                    weapon.gameObject.SetActive(true);
                    CmdSyncWeaponWithRemote(i, _playerID, true);
                }
                else
                {
                    weapon.gameObject.SetActive(false);
                    CmdSyncWeaponWithRemote(i, _playerID, false);
                    
                }


                i++;
            }
        }
    }

    [Command]
    void CmdSyncWeaponWithRemote(int _weaponID, string _playerID, bool _active)
    {
        if (isServer)
            RpcSyncWeaponWithRemote(_weaponID, _playerID, _active);
    }


    /*   Bug: Doesnt sync equipped weapon from remote to host, i.e. host player equips a M4 Carbine, the remote will see it, but if a remote equips a weapon, the host will not see it      */ 



    [ClientRpc]
    void RpcSyncWeaponWithRemote(int _weaponID, string _playerID, bool _active)
    {
        Player _player = GameManager.GetPlayer(_playerID);

        Transform transformsInChild = _player.GetComponentInChildren<Transform>();
        foreach (Transform transformInChild in transformsInChild)
        {
            if (transformInChild.name == "_Weapons")
                weaponHolder = transformInChild.gameObject;
        }

        weaponHolder.transform.GetChild(_weaponID).gameObject.SetActive(_active);
    }

}