using System;
using System.Runtime.InteropServices;
using DotMetamod;
using DotMetamod.Metamod;
using DotMetamod.HLSDK;
using DotMetamod.Wrappers;

namespace GldSrc.Metamod
{
	public static class Core
	{
		static IntPtr PLID;
		static IntPtr PluginInfo;

		static EnginefuncsWp engineFunctions;
		static GlobalVariablesWp globalVariables;

		static MetaGlobalsWp metaGlobals;

		static void GiveFnptrsToDll(IntPtr pengfuncsFromEngine, IntPtr pGlobals)
		{
			engineFunctions = new EnginefuncsWp(pengfuncsFromEngine);
			globalVariables = new GlobalVariablesWp(pGlobals);
		}

		static void Meta_Query(string interfaceVersion, IntPtr plinfo, IntPtr pMetaUtilFuncs)
		{
			PluginInfo = Utils.AllocPluginInfo(
				"5:13",				// ifvers
				"Test plugin",		// name
				"0.1",				// version
				"2015/01/01",		// date
				"Polarhigh",		// author
				"https://github.com/PolarHIGH/DotMetamod",	// url
				"TEST",				// logtag
				PluginLoadTime.Anytime, // load
				PluginLoadTime.Anypause	// unload
			);

			Marshal.WriteIntPtr(plinfo, PluginInfo);
			PLID = PluginInfo;
		}

		static unsafe void Meta_Attach(PluginLoadTime now, IntPtr pFunctionTable, IntPtr pMetaGlobals, IntPtr pGamedllFuncs)
		{
			metaGlobals = new MetaGlobalsWp(pMetaGlobals);

			Marshal.StructureToPtr(new MetaFunctions {
				GetEntityAPI2 = (ref DllFunctions table, ref int interfaceVersion) => {
					table.ClientCommand = (edict_t* pEntity) => {
						if(engineFunctions.Cmd_Argv(0)[0] == 'h')
						{
							Entity ent = Entity.GetEntity(pEntity);
							ent.Entvars((ref entvars_t v)  => v.velocity += new Vec3(0f, 0f, 350f));
						}

						metaGlobals.SetMetaResult(MetaRes.Ignored);
					};

					return 0;
				},
				
				GetEngineFunctions_Post = (ref Enginefuncs table, ref int interfaceVersion) => {
					table.MessageBegin = (int msg_dest, int msg_type, float* pOrigin, edict_t* ed) => {
						Vec3 o = pOrigin != null ? new Vec3(pOrigin) : new Vec3();

						Console.WriteLine("dest: {0} type: {1} org: {2} edict: {3}", msg_dest, msg_type, o, ed != null ? engineFunctions.SzFromIndex(ed->v.classname) : "null");
						
						metaGlobals.SetMetaResult(MetaRes.Ignored);
					};

					return 0;
				}
			}, pFunctionTable, false);
		}

		static void Meta_Detach(PluginLoadTime now, int reason)
		{
			Utils.FreePluginInfo(PluginInfo);
		}

		private static void Main(string[] args) { }
	}
}