using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using CLre_server.API.Config;
using CLre_server.API.Tools;
using CLre_server.WebStatus;
using GameNetworkLayer.Shared;
using HarmonyLib;
using Svelto.ECS;
using UnityEngine;

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

		public override string Version { get; } = Assembly.GetExecutingAssembly().GetName().Version.ToString();

		internal static Harmony harmonyInstance = null;
		
		public static CLreConfig Config = CLreConfig.Default();

		// called when Cardlife shuts down
		public override void OnApplicationQuit()
		{
			WebServer.Deinit();
			harmonyInstance.UnpatchAll();
		}

        // called when Cardlife starts up
		public override void OnApplicationStart()
		{
#if DEBUG
			FileLog.Reset();
			Harmony.DEBUG = true;
			// enable CLre debug functionality
			AccessToolsWarnings.Enable();
			NetServerListener.Enable();
#endif
			// init all Harmony patches in project
			harmonyInstance = new Harmony(Name);
			harmonyInstance.PatchAll();
			
			// patches for bugs
			Fixes.InitLogSooner.Init();
			
			// API init
			API.Synergy.ServerHandshakeEngine.Init();
			
			// misc
			LogIPAPlugins(); // log plugins again so they show up in the log, and not just stdout
			Fixes.BugfixAttributeUtility.LogBugfixes(); // log bugfixes that are applied

#if DEBUG
			// test CLre debug functionality
			Type netData = AccessTools.TypeByName("Game.Handhelds.DrawingStateMessage");
			NetServerSender.DebugSendMessage(netData, harmonyInstance,
				NetServerSender.GetLogMethod(netData));
			API.Utility.Logging.MetaLog("Patched SendMessage<Game.Handhelds.DrawingStateMessage>");

			netData = AccessTools.TypeByName("Shared.Inventory.HandheldEquipmentRequest");
			NetServerSender.DebugSendMessage(netData, harmonyInstance,
				NetServerSender.GetLogMethod(netData));
			API.Utility.Logging.MetaLog("Patched SendMessage<Shared.Inventory.HandheldEquipmentRequest>");

			netData = typeof(API.Synergy.SerializedCLreHandshake);
			NetServerSender.DebugSendMessage(netData, harmonyInstance,
				NetServerSender.GetLogMethod(netData));
			API.Utility.Logging.MetaLog("Patched SendMessage<SerializedCLreHandshake>");
			
			NetServerListener.DebugReceiveMessage(NetworkDispatcherCode.EACMessageServerToClient,
				NetServerListener.Log);
			
			NetServerListener.DebugReceiveMessage(NetworkDispatcherCode.SendIsPvEToClient,
				NetServerListener.Log);
			
			NetServerListener.DebugReceiveMessage(API.Synergy.ServerHandshakeEngine.CLre_HANDSHAKE_NETCODE,
				NetServerListener.Log);
			
			// API debug and testing
			API.MainServer.Server.Instance.FrameworkReady += (_, __) => API.Utility.Logging.MetaLog("(!) Server framework ready for business");
			API.MainServer.Server.Instance.FrameworkExit += (_, __) => API.Utility.Logging.MetaLog("(!) Server framework shutting down"); // this seems to never happen
			API.MainServer.Server.Instance.InitStart += (_, __) => API.Utility.Logging.MetaLog("(!) Server initialising");
			API.MainServer.Server.Instance.InitComplete += (_, __) => API.Utility.Logging.MetaLog("(!) Server successfully initialised");
#endif
			// try to load config file
			Config = CLreConfig.FromFileSafely("CLre_server.json");
			// init config-dependent functionality
			WebServer.Init();
			API.Synergy.CLreEnforcer.Init();
			Tweaks.TerrainModificationExclusionZone.Init();
			// Log info
			API.Utility.Logging.MetaLog($"{Name} init complete.");
		}

		private static void LogIPAPlugins()
		{
			StringBuilder sb = new StringBuilder();
			sb.AppendFormat("Running on Unity {0}\n", Application.unityVersion);
			sb.AppendFormat("Running on CardLife Server {0} (aka {1})\n", Game.Utilities.VersionReader.GetVersion(), Application.version);
			sb.AppendFormat("-----------------------------\n");
			sb.AppendFormat("Loading plugins from {0} and found {1}\n", System.IO.Path.Combine(Environment.CurrentDirectory, "Plugins"), IllusionInjector.PluginManager.Plugins.Count());
			sb.AppendFormat("-----------------------------\n");
			foreach (IllusionPlugin.IPlugin plugin in IllusionInjector.PluginManager.Plugins)
			{

				sb.AppendFormat(" {0}: {1}\n", plugin.Name, plugin.Version);
			}
			sb.AppendFormat("-----------------------------\n");
			API.Utility.Logging.Log(sb.ToString());
		}
		
#if DEBUG
		public override void OnGUI()
		{
			if (GUI.Button(new Rect(10, 10, 50, 50), "QUIT"))
			{
				Application.Quit(); // yeet
			}
		}
#endif
	}
}