using System;
using System.Reflection;
//using Microsoft.Win32;

using IllusionPlugin;
using GamecraftModdingAPI.App;
using GamecraftModdingAPI.Commands;
using Discord;

namespace GamecraftRPC
{
	public class Plugin : IPlugin // the Illusion Plugin Architecture (IPA) will ignore classes that don't implement IPlugin'
	{
		public string Name { get; } = Assembly.GetExecutingAssembly().GetName().Name;

		public string Version { get; } =
#if DEBUG
			Assembly.GetExecutingAssembly().GetName().Version.ToString() + "alpha";
#else
			Assembly.GetExecutingAssembly().GetName().Version.ToString();
#endif

		private const long CLIENT_ID =
#if DEBUG
        692733325902872619;
#else
		696732441012076605;
#endif

		private const LogLevel LOG_LEVEL =
#if DEBUG
			LogLevel.Debug;
#else
			LogLevel.Warn;
#endif

		internal static Discord.Discord DiscordRPC;

        // called when Gamecraft shuts down
		public void OnApplicationQuit()
		{
            // Shutdown this mod
            if (DiscordRPC != null)
            {
				DiscordRPC.GetActivityManager().ClearActivity((result) => { GamecraftModdingAPI.Utility.Logging.LogDebug($"Cleared status: {result}"); DiscordRPC.Dispose(); });
            }
			GamecraftModdingAPI.Utility.Logging.LogDebug($"{Name} has shutdown");

            // Shutdown the Gamecraft modding API last
			GamecraftModdingAPI.Main.Shutdown();
		}

        // called when Gamecraft starts up
		public void OnApplicationStart()
		{
            // Initialize the Gamecraft modding API first
			GamecraftModdingAPI.Main.Init();

			// detect Wine (maybe?)
			bool isWineDetected = false;
			foreach (var key in Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software").GetSubKeyNames())
			{
                if (key == "Wine")
				{
					isWineDetected = true;
					break;
				}
			}
			if (isWineDetected)
			{
				// info for getting this to work through Wine/Proton
				GamecraftModdingAPI.Utility.Logging.MetaLog("\n--------------------------------\n\nIt looks like you may be using Wine/Proton, cool!\nPlease install https://github.com/0e4ef622/wine-discord-ipc-bridge to get this to work.\n\n--------------------------------");
			}

            // Initialize this mod
			DiscordRPC = new Discord.Discord(CLIENT_ID, (UInt64)Discord.CreateFlags.NoRequireDiscord);
			DiscordRPC.SetLogHook(LOG_LEVEL, (_, msg) => { GamecraftModdingAPI.Utility.Logging.MetaLog(msg); });
			//DiscordRPC.GetActivityManager().RegisterSteam(1078000);

			ActivityManager am = DiscordRPC.GetActivityManager();
			am.OnActivityJoinRequest += CallbackUtility.ActivityJoinRequest;
			am.OnActivityJoin += CallbackUtility.ActivityJoin;
			am.OnActivityInvite += CallbackUtility.ActivityInvite;

			LobbyManager lm = DiscordRPC.GetLobbyManager();
			lm.OnMemberConnect += CallbackUtility.DiscordUserJoin;

			SetDiscordActivity(state: $"{UnityEngine.Application.version} ({Version})", details: $"Initializing...", start: (int)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds);

			Game.Edit += CallbackUtility.BuildEnter;
			Game.Enter += CallbackUtility.GameEnter;
			Game.Simulate += CallbackUtility.SimulationEnter;
			Client.EnterMenu += CallbackUtility.MenuEnter;

            GamecraftModdingAPI.Utility.GameEngineManager.AddGameEngine(new Engines.PlayerCountEngine());

			CommandBuilder.Builder()
						  .Name("JoinDiscord")
						  .Description("Join the Exmods server for help or more information")
						  .Action(() =>
			{
				if (DiscordRPC != null)
				{
					DiscordRPC.GetOverlayManager().OpenGuildInvite("2CtWzZT", CallbackUtility.NobodyCares);
				}
				else
				{
					GamecraftModdingAPI.Utility.Logging.CommandLogError("Discord GameSDK functionality is unavailable. Please make sure Discord is open when launching Gamecraft.");
				}
			})
						  .Build();

			CommandBuilder.Builder()
						  .Name("InviteDiscordUser")
						  .Description("Invite a Discord user (by id) to your game")
						  .Action<long>((userId) =>
			{
				if (DiscordRPC != null)
				{
					Game game = Game.CurrentGame();
					DiscordRPC.GetActivityManager().SendInvite(userId, Discord.ActivityActionType.Join, $"Let's play Gamecraft together! (requires the GamecraftRPC mod)", CallbackUtility.NobodyCares);
				}
				else
				{
					GamecraftModdingAPI.Utility.Logging.CommandLogError("Discord GameSDK functionality is unavailable. Please make sure Discord is open when launching Gamecraft.");
				}
			})
						  .Build();

			CommandBuilder.Builder()
						  .Name(Name + "Info")
						  .Description("Build information for the GamecraftRPC mod.")
						  .Action(() =>
			{
				if (DiscordRPC != null)
                {
                    Game game = Game.CurrentGame();
					Client client = new Client();
					GamecraftModdingAPI.Utility.Logging.CommandLog($"Gamecraft {client.Version}\nUnity {client.UnityVersion}\n{Name} {Version}\nSDK {DiscordRPC.ToString()}\nGame {game.Name}");
                }
                else
                {
                    GamecraftModdingAPI.Utility.Logging.CommandLogError("Discord GameSDK functionality is unavailable. Please make sure Discord is open when launching Gamecraft.");
                }

			})
						  .Build();

            GamecraftModdingAPI.Utility.Logging.LogDebug($"{Name} has started up");
		}

		public void OnFixedUpdate() { } // called once per physics update

		public void OnLevelWasInitialized(int level) { } // called after a level is initialized

		public void OnLevelWasLoaded(int level) { } // called after a level is loaded

		public void OnUpdate() // called once per rendered frame (frame update)
		{
			if (DiscordRPC != null ) DiscordRPC.RunCallbacks();
		}

        public static void SetDiscordActivity(string state = null, string details = null, long start = 0, long end = 0, string largeImg = "gamecraft-logo-g", string largeTxt = "Gamecraft", string smallImg = "exmods-logo-xm2", string smallTxt = "Exmods", string partyId = null, int partyCurrentSize = 0, int partyMaxSize = 0, string matchSecret = null, string joinSecret = null, string spectateSecret = null, bool instance = true, string debug = "")
        {
            if (DiscordRPC == null) return;

            ref Activity activity = ref PresenceUtility.Activity;
            activity.Instance = instance;

            if (state != null) activity.State = state;
            if (details != null) activity.Details = details;
            if (start != 0) activity.Timestamps.Start = start;
            if (end != 0) activity.Timestamps.End = end;
            if (!string.IsNullOrEmpty(largeImg))
            {
                activity.Assets.LargeImage = largeImg;
                activity.Assets.LargeText = largeTxt;
            }
            if (!string.IsNullOrEmpty(smallImg))
            {
                activity.Assets.SmallImage = smallImg;
                activity.Assets.SmallText = smallTxt;
            }
            if (!string.IsNullOrEmpty(partyId))
            {
                activity.Party.Id = partyId;
                activity.Party.Size.CurrentSize = partyCurrentSize;
                activity.Party.Size.MaxSize = partyMaxSize;
            }
            if (!string.IsNullOrEmpty(matchSecret) || !string.IsNullOrEmpty(joinSecret) || !string.IsNullOrEmpty(spectateSecret))
            {
                activity.Secrets.Match = matchSecret;
                activity.Secrets.Join = joinSecret;
                activity.Secrets.Spectate = spectateSecret;
            }

            DiscordRPC.GetActivityManager().UpdateActivity(activity, result =>
            {
                GamecraftModdingAPI.Utility.Logging.MetaLog($"Update Activity Result: {result} {debug}");
            });
        }

        public static void SetDiscordActivity(Discord.Activity activity, string debug = "")
        {
			if (DiscordRPC == null) return;
            PresenceUtility.Activity = activity;
            DiscordRPC.GetActivityManager().UpdateActivity(PresenceUtility.Activity, result =>
            {
                GamecraftModdingAPI.Utility.Logging.MetaLog($"Update Activity Result: {result} {debug}");
            });
        }

        public static void SetDiscordActivity(string debug = "")
        {
			if (DiscordRPC == null) return;
            DiscordRPC.GetActivityManager().UpdateActivity(PresenceUtility.Activity, result =>
            {
                GamecraftModdingAPI.Utility.Logging.MetaLog($"Update Activity Result: {result} {debug}");
            });
        }
	}
}