using Cysharp.Threading.Tasks;
using Mirror;
using Mirror.Discovery;
using System.Collections.Generic;
using UnityEngine;

namespace Tuan.GameFramework
{
    public class AutoStart : MonoBehaviour
    {
        public bool alwaysAutoStart = false;
        public VRNetworkDiscovery networkDiscovery;
        readonly Dictionary<long, ServerResponse> discoveredServers = new Dictionary<long, ServerResponse>();
        public float waitForHostTimeout = 1f;
        private async void Start()
        {
            // skips waiting for users to press ui button
            if (alwaysAutoStart)
            {
                await Waiter();
            }
        }

        public async UniTask Waiter()
        {
            discoveredServers.Clear();
            networkDiscovery.StartDiscovery();
            // we have set this as 3.1 seconds, default discovery scan is 3 seconds, allows some time if host and client are started at same time
            await UniTask.WaitForSeconds(waitForHostTimeout);
            if (discoveredServers == null || discoveredServers.Count <= 0)
            {
                Debug.Log("No Servers found, starting as Host.");
                await UniTask.WaitForSeconds(0.1f);
                discoveredServers.Clear();
                VRNetworkManager.singleton.StartHost();
                networkDiscovery.AdvertiseServer();
            }
        }

        void Connect(ServerResponse info)
        {
            Debug.Log($"Connecting to: {info.uri.Host}");
            networkDiscovery.StopDiscovery();
            VRNetworkManager.singleton.StartClient(info.uri);
        }

        public void OnDiscoveredServer(ServerResponse info)
        {
            discoveredServers[info.serverId] = info;
            Connect(info);
        }

        public void StartAsHost()
        {
            Debug.Log("Starting as host");
            discoveredServers.Clear();
            VRNetworkManager.singleton.StartHost();
            networkDiscovery.AdvertiseServer();

        }

        public void StartAsServer()
        {
            Debug.Log("Starting as server");
            discoveredServers.Clear();
            // VRNetworkManager.singleton.onlineScene = SceneManager.GetActiveScene().name;
            VRNetworkManager.singleton.StartServer();
            networkDiscovery.AdvertiseServer();

        }

        public void StartAsClient()
        {
            Debug.Log("Starting as client.");
            discoveredServers.Clear();
            networkDiscovery.StartDiscovery();
        }

        public void Stop()
        {
            Debug.Log("Stopping");
            // stop host if host mode
            if (NetworkServer.active && NetworkClient.isConnected)
            {
                VRNetworkManager.singleton.StopHost();
            }
            // stop client if client-only
            else if (NetworkClient.isConnected)
            {
                VRNetworkManager.singleton.StopClient();
            }
            // stop server if server-only
            else if (NetworkServer.active)
            {
                VRNetworkManager.singleton.StopServer();
            }
            networkDiscovery.StopDiscovery();
        }
    }
}