using Photon.Pun;
using Photon.Realtime;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class GameManager : MonoBehaviourPunCallbacks, IPunObservable
{
    public Text PlayerHitPointsText;
    public Text EnemyHitPointsText;
    private int PlayerHitpoints;
    private int EnemyHitpoints;
    public GameObject PlayerPrefab;
    // Use this for initialization
    void Start () {
        PlayerHitpoints = 3;
        Vector3 pos = new Vector3(Random.Range(-5f, 5f), Random.Range(-5f, 5f));
        PhotonNetwork.Instantiate(PlayerPrefab.name, pos, Quaternion.identity);
    }

    // Update is called once per frame
    void Update () {
        PlayerHitPointsText.text = "Health: " + PlayerHitpoints;
        EnemyHitPointsText.text = "Enemy health: " + EnemyHitpoints;
        if(PlayerHitpoints == 0 && PhotonNetwork.NetworkClientState == ClientState.Joined)
        {
            PhotonNetwork.LeaveRoom();
        }
    }
    public override void OnLeftRoom()
    {
        SceneManager.LoadScene(0);
    }
    public override void OnPlayerEnteredRoom(Player newPlayer)
    {
        Debug.LogFormat("Player {0} entered", newPlayer.NickName);
    }
    public override void OnPlayerLeftRoom(Player otherPlayer)
    {
        Debug.LogFormat("Player {0} left", otherPlayer.NickName);
    }
    public void Leave()
    {
        PhotonNetwork.LeaveRoom();
    }
    public void PlayerHitPointsReduce()
    {
        PlayerHitpoints -= 1;
    }

    public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
    {
        if (stream.IsWriting)
        {
            stream.SendNext(PlayerHitpoints);
        }
        else if(stream.IsReading)
        {
            EnemyHitpoints = (int)stream.ReceiveNext();
        }
    }
}