using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace ExtractResFile.AsposeHook
{
    internal static class Utils
    {
        private static bool _enableLog;

        public static void EnableLog()
        {
            _enableLog = true;
        }

        public static void DisableLog()
        {
            _enableLog = false;
        }

        public static void LogWrite(string msg)
        {
            if (_enableLog)
            {
                Console.Write(msg);
            }
        }

        public static void LogWriteLine(string msg, ConsoleColor forgroundColor = ConsoleColor.Gray)
        {
            if (_enableLog)
            {
                Console.ForegroundColor = forgroundColor;
                Console.WriteLine(msg);
                Console.ResetColor();
            }
        }

        public static string To16String(this IntPtr address)
        {
            if (Environment.Is64BitProcess)
            {
                return Convert.ToString(address.ToInt64(), 16).PadLeft(16, '0');
            }

            return Convert.ToString(address.ToInt32(), 16).PadLeft(8, '0');
        }

        public static IntPtr ReadIntPtr(this IntPtr address)
        {
            return Marshal.ReadIntPtr(address);
        }

        public static void ShowMethodInfo(MethodMeta meta)
        {
            if (_enableLog)
            {
                Console.WriteLine();
                Console.Write("{0,-19}", "Method:");
                Console.ForegroundColor = ConsoleColor.Yellow;
                Console.WriteLine("{0,-15}", meta.Method.Name);
                Console.ResetColor();
                Console.Write("{0,-19}", "MethodDesc Addr:");
                Console.WriteLine("{0}", meta.MethodDescAddress.To16String());
                Console.ResetColor();
                Console.Write("{0,-19}", "MethodDesc Value:");
                Console.WriteLine("{0}", meta.MethodDescValue.To16String());
                Console.ResetColor();
                Console.Write("{0,-19}", "GetFunctionPointer:");
                Console.ForegroundColor = ConsoleColor.Yellow;
                Console.Write("{0} => ", meta.FunctionPointerBeforePrepare.To16String());
                if (meta.FunctionPointerBeforePrepare != meta.FunctionPointerAfterPrepare)
                {
                    Console.ForegroundColor = ConsoleColor.Green;
                }

                Console.WriteLine("{0}", meta.FunctionPointerAfterPrepare.To16String());
                Console.ResetColor();
                Console.Write("{0,-19}", "IntPtr1:");
                Console.ForegroundColor = ConsoleColor.Yellow;
                Console.Write("{0} => ", meta.Next1IntptrBeforePrepare.To16String());
                if (meta.Next1IntptrBeforePrepare != meta.Next1IntptrAfterPrepare)
                {
                    Console.ForegroundColor = ConsoleColor.Green;
                }

                Console.WriteLine("{0}", meta.Next1IntptrAfterPrepare.To16String());
                Console.ResetColor();
                Console.Write("{0,-19}", "IntPtr2:");
                Console.ForegroundColor = ConsoleColor.Yellow;
                Console.Write("{0} => ", meta.Next2IntptrBeforePrepare.To16String());
                if (meta.Next2IntptrBeforePrepare != meta.Next2IntptrAfterPrepare)
                {
                    Console.ForegroundColor = ConsoleColor.Green;
                }

                Console.WriteLine("{0}", meta.Next2IntptrAfterPrepare.To16String());
                Console.ResetColor();
            }
        }
    }
}