using System.Collections;
using UnityEngine;
using TMPro;
using Unity.Multiplayer.Samples.BossRoom.Server;
using Unity.Multiplayer.Samples.Utilities;
using Unity.Netcode;
using VContainer;
using static Unity.Multiplayer.Samples.BossRoom.ConnectionManager.ServerType;

namespace Unity.Multiplayer.Samples.BossRoom.Visual
{
    /// <summary>
    /// Provides backing logic for all of the UI that runs in the PostGame stage.
    /// </summary>
    public class PostGameUI : MonoBehaviour
    {
        [SerializeField]
        private Light m_SceneLight;

        [SerializeField]
        private TextMeshProUGUI m_WinEndMessage;

        [SerializeField]
        private TextMeshProUGUI m_LoseGameMessage;

        [SerializeField]
        private TextMeshProUGUI m_DedicatedServerCountdownText;

        [SerializeField]
        private GameObject m_ReplayButton;

        [SerializeField]
        private GameObject m_WaitOnHostMsg;

        [SerializeField]
        TransformVariable m_NetworkGameStateTransform;

        [SerializeField]
        private Color m_WinLightColor;

        [SerializeField]
        private Color m_LoseLightColor;

        [Inject]
        ConnectionManager m_ConnectionManager;

        void Start()
        {
            // only hosts can restart the game, other players see a wait message
            if (NetworkManager.Singleton.IsHost)
            {
                m_ReplayButton.SetActive(true);
                m_WaitOnHostMsg.SetActive(false);
            }
            else
            {
                m_ReplayButton.SetActive(false);
                m_WaitOnHostMsg.SetActive(true);
            }

            if (m_NetworkGameStateTransform && m_NetworkGameStateTransform.Value &&
                m_NetworkGameStateTransform.Value.TryGetComponent(out NetworkGameState networkGameState))
            {
                SetPostGameUI(networkGameState.NetworkWinState.winState.Value);
            }

            if (m_ConnectionManager.IsConnectedToHost == DedicatedServer && !NetworkManager.Singleton.IsServer)
            {
                IEnumerator CountdownToNextGame()
                {
                    var count = ServerPostGameState.SecondsToWaitForNewGame;
                    while (count > 0)
                    {
                        m_DedicatedServerCountdownText.text = count.ToString();
                        count--;
                        yield return new WaitForSeconds(1);
                    }
                }

                StartCoroutine(CountdownToNextGame());
            }
        }

        void SetPostGameUI(WinState winState)
        {
            // Set end message and background color based last game outcome
            if (winState == WinState.Win)
            {
                m_SceneLight.color = m_WinLightColor;
                m_WinEndMessage.gameObject.SetActive(true);
                m_LoseGameMessage.gameObject.SetActive(false);
            }
            else if (winState == WinState.Loss)
            {
                m_SceneLight.color = m_LoseLightColor;
                m_WinEndMessage.gameObject.SetActive(false);
                m_LoseGameMessage.gameObject.SetActive(true);
            }
        }

        public void OnPlayAgainClicked()
        {
            // this should only ever be called by the Host - so just go ahead and switch scenes
            SceneLoaderWrapper.Instance.LoadScene(SceneNames.CharSelect, useNetworkSceneManager: true);

            // FUTURE: could be improved to better support a dedicated server architecture
        }

        public void OnMainMenuClicked()
        {
            m_ConnectionManager.RequestShutdown();
        }
    }
}