using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using RomCheater.PluginFramework.Core;
using System.IO;
using System.Diagnostics;
using RomCheater.Logging;

namespace RomCheater.CorePlugins.Config
{
    //public sealed class PCSX2Config : ConfigPlugin
    //{
    //    #region Configuration Memvers
    //    const string PCXS2_PROCESS_MAGIC = "pcsx2";
    //    const string PCXS2_LOOKUP_MAGIC_001 = "pcsx2";
    //    const string PCXS2_LOOKUP_MAGIC_002 = "compiled on";
    //    const uint VTLB_VADDR_OFFSET_DEBUG = 0x20000000;
    //    #endregion
    //    public PCSX2Config() : base(false) { }
    //    public PCSX2Config(bool doinit) : base(doinit) { }
    //    protected override bool IsNotValidProcess(ProcContainer p)
    //    {
    //        bool isDebug = false;
    //        uint VTLB_RELEASE_OFFSET = 0;
    //        bool notvalid = !IsValidPSX2Process(p.ProcessInfo.Id, out isDebug, out VTLB_RELEASE_OFFSET);
    //        if (notvalid)
    //        {
    //            logger.VerboseDebug.WriteLine("    Not Allowing process {0} to be added because it was filterd out", p.Name);
    //        }
    //        else
    //        {
    //            logger.VerboseDebug.WriteLine("    Allowing process {0} to be added", p.Name);
    //        }
    //        return notvalid;
    //    }
    //    #region IPluginBase Members
    //    public override Guid ID
    //    {
    //        get
    //        {
    //            return new GuidGenerator(typeof(PCSX2Config).FullName).Guid;
    //        }
    //    }
    //    public override string Name
    //    {
    //        get { return "PCSX2 Configuration Plugin"; }
    //    }
    //    public override string Description
    //    {
    //        get { return "This plugin provides a configuration suitable for use with PCSX2"; }
    //    }
    //    #endregion
    //    private static bool IsValidPSX2Process(int pid, out bool isDebug, out uint VTLB_RELEASE_OFFSET)
    //    {
    //        bool isValid = false;
    //        isDebug = false;
    //        VTLB_RELEASE_OFFSET = 0;
    //        try
    //        {
    //            Process p = Process.GetProcessById(pid);
    //            string filename = p.MainModule.FileName;
    //            FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
    //            BinaryReader r = new BinaryReader(fs);
    //            byte[] exe_check = new byte[] {
    //            0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,	0xFF, 0xFF, 0x00, 0x00, 
    //            0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
    //            0x00, 0x00, 0x00, 0x00,	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    //            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	0x00, 0x01, 0x00, 0x00, 
    //            0x0E, 0x1F, 0xBA, 0x0E, 0x00, 0xB4, 0x09, 0xCD,	0x21, 0xB8, 0x01, 0x4C, 0xCD, 0x21, 0x54, 0x68, 
    //            0x69, 0x73, 0x20, 0x70,	0x72, 0x6F, 0x67, 0x72, 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F,
    //            0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E, 0x20, 0x69, 0x6E, 0x20,	0x44, 0x4F, 0x53, 0x20, 
    //            0x6D, 0x6F, 0x64, 0x65, 0x2E
    //            };
    //            r.BaseStream.Seek(0, SeekOrigin.Begin);
    //            byte[] data = r.ReadBytes(exe_check.Length);
    //            bool isExe = false;
    //            for (int i = 0; i < exe_check.Length; i++) { if (exe_check[i] == data[i]) { isExe = true; } else { isExe = false; } }
    //            r.Close();
    //            if (!isExe)
    //            {
    //                logger.VerboseDebug.WriteLine("  Process: {0} is not a valid executable file", filename);
    //                isValid = false;
    //            }
    //            else
    //            {
    //                // check for valid pcsx2 exe
    //                fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
    //                StreamReader sr = new StreamReader(fs);
    //                string found_string = sr.ReadToEnd();
    //                if (found_string.ToLower().Contains(PCXS2_LOOKUP_MAGIC_001.ToLower()) && found_string.ToLower().Contains(PCXS2_LOOKUP_MAGIC_002.ToLower()))
    //                {
    //                    isValid = true;
    //                    logger.VerboseDebug.WriteLine("  Process: {0} found MAGIC LOOKUP {1} and {2}", filename, PCXS2_LOOKUP_MAGIC_001.ToLower(), PCXS2_LOOKUP_MAGIC_002.ToLower());
    //                }
    //                sr.Close();
    //                // check for debug               
    //                fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
    //                sr = new StreamReader(fs);
    //                found_string = sr.ReadToEnd();
    //                // DebugBreak should only be present in debug build version(s) of pcsx2
    //                if (found_string.ToLower().Contains("DebugBreak".ToLower()))
    //                {
    //                    isDebug = true;
    //                    logger.VerboseDebug.WriteLine("  Process: {0} found DebugBreak", filename);
    //                }
    //                sr.Close();
    //            }
    //            //this.IsDebugBuild = isDebug;
    //            // run check to see if we have a later version with offset fixed at: 0x20000000
    //            byte[] entrypoint_data = new byte[]{
    //                0x01, 0x80, 0x1A, 0x3C, 0x78, 0x53, 0x59, 0xFF, 0x00, 0x68, 0x19, 0x40,
    //                0x01, 0x80, 0x1A, 0x3C, 0x7C, 0x00, 0x39, 0x33, 0x21, 0xD0, 0x59, 0x03,
    //                0x40, 0x53, 0x5A, 0x8F, 0x01, 0x80, 0x19, 0x3C, 0x08, 0x00, 0x40, 0x03,
    //                0x78, 0x53, 0x39, 0xDF
    //            };
    //            //uint address = ramdumper.VTLB_VADDR_OFFSET_DEBUG;
    //            Sojaner.MemoryScanner.ProcessMemoryReader reader = new Sojaner.MemoryScanner.ProcessMemoryReader();
    //            reader.ReadProcess = p;
    //            reader.OpenProcess();
    //            int bytesReadSize;
    //            byte[] check_data = reader.ReadProcessMemory((IntPtr)VTLB_VADDR_OFFSET_DEBUG, (uint)entrypoint_data.Length, out bytesReadSize);
    //            isDebug = check_data.SequenceEqual(entrypoint_data);
    //            logger.Debug.WriteLine("  Process: {0} isDebug: {1}", filename, isDebug.ToString());
    //            //List<uint> addresses = new List<uint>();
    //            if (!isDebug)
    //            {
    //                for (int i = 0x1000; i < 0x2000;i++ )
    //                {
    //                    try
    //                    {
    //                        uint t = ((uint)i << 16) | 0x5000;
    //                        check_data = reader.ReadProcessMemory((IntPtr)t, (uint)entrypoint_data.Length, out bytesReadSize);
    //                        isValid = check_data.SequenceEqual(entrypoint_data);
    //                        if (isValid)
    //                        {
    //                            //addresses.Add(t);
    //                            VTLB_RELEASE_OFFSET = t;
    //                            logger.VerboseDebug.WriteLine("  Process: {0} found release build entrypoint at 0x{1:x8}", filename, t);
    //                            break; //use only the first valid value
    //                        }
    //                    }
    //                    catch { }
    //                }                    
    //            }
    //            reader.CloseHandle();
    //            return isValid;
    //        }
    //        catch (System.ComponentModel.Win32Exception) { }
    //        catch (Exception) { }
    //        return isValid;
    //    }
    //}
}