using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using static System.Net.Mime.MediaTypeNames;

namespace SuperDogTest
{
    /// <summary>
    /// 超级狗辅助类
    /// </summary>
    public static class SuperDogHelper
    {
        /// <summary>
        /// 加载dll
        /// </summary>
        /// <param name="DllName"></param>
        /// <returns></returns>
        [DllImport("kernel32.dll")]
        public extern static IntPtr LoadLibrary(string DllName);
        /// <summary>
        /// 释放dll
        /// </summary>
        /// <param name="hModule"></param>
        /// <returns></returns>

        [DllImport("kernel32")]
        public extern static bool FreeLibrary(IntPtr hModule);
        /// <summary>
        /// 获取dll中的方法句柄
        /// </summary>
        /// <param name="hModule"></param>
        /// <param name="ProcName"></param>
        /// <returns></returns>

        [DllImport("kernel32.dll")]
        public extern static IntPtr GetProcAddress(IntPtr hModule, string ProcName);

        /// <summary>
        /// 查找加密狗委托
        /// </summary>
        /// <param name="Count"></param>
        /// <returns></returns>
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        public delegate int VikeyFindType(ref int Count);

        /// <summary>
        /// 读取加密狗数据委托
        /// </summary>
        /// <param name="Index"></param>
        /// <param name="Addr"></param>
        /// <param name="Length"></param>
        /// <param name="buffer"></param>
        /// <returns></returns>
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        public delegate int VikeyReadDataType(int Index, int Addr, int Length, StringBuilder buffer);

        /// <summary>
        /// 管理员登录加密狗委托
        /// </summary>
        /// <param name="Index"></param>
        /// <param name="AdminPassword"></param>
        /// <returns></returns>
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        public delegate int VikeyAdminLoginType(int Index, string AdminPassword);

        /// <summary>
        /// 加密狗句柄
        /// </summary>
        private static IntPtr VikeyHandle;
        /// <summary>
        /// 查找加密狗
        /// </summary>
        public static VikeyFindType VikeyFind { get; private set; }
        /// <summary>
        /// 加密狗管理员登录
        /// </summary>
        public static VikeyAdminLoginType VikeyAdminLogin { get; private set; }
        /// <summary>
        /// 加密狗读取数据
        /// </summary>
        public static VikeyReadDataType VikeyReadData { get; private set; }
        static SuperDogHelper()
        {
            if (IntPtr.Size == 4)
            {
                VikeyHandle = LoadLibrary("ViKey32.dll");
            }
            else if (IntPtr.Size == 8)
            {
                VikeyHandle = LoadLibrary("ViKey64.dll");
            }
            else
                return;

            VikeyFind = Marshal.GetDelegateForFunctionPointer<VikeyFindType>(GetProcAddress(VikeyHandle, "VikeyFind"));
            VikeyAdminLogin = Marshal.GetDelegateForFunctionPointer<VikeyAdminLoginType>(GetProcAddress(VikeyHandle, "VikeyAdminLogin"));
            VikeyReadData = Marshal.GetDelegateForFunctionPointer<VikeyReadDataType>(GetProcAddress(VikeyHandle, "VikeyReadData"));
        }
    }
}