using Aip.Api.Service.Configurations;
using Microsoft.AspNetCore.DataProtection.KeyManagement;
using Newtonsoft.Json.Linq;
using Serilog;
using System.Runtime.InteropServices;
using System.Text;

namespace Aip.Api.Service;


public class AipApiManager
{
    [DllImport("AipApiManager.dll", CallingConvention = CallingConvention.StdCall)]
    public static extern int AipApiDecrypt([In] string ADecMessage, [Out] StringBuilder AEncMessage);

    
    public static AipSettings? LocalValidateLicense(IConfiguration configuration)
    {
        try
        {
            // 현재 실행 위치의 한 단계 위 경로를 얻어옵니다.
            string currDirectory = Directory.GetCurrentDirectory();

            string licenseIniFile = Path.Combine(currDirectory, "License", "AipApiLicense.ini");
            //Log.Information("LicenseFilePath: {0}, {1}", parentDirectory, licenseFilePath);

            if (!File.Exists(licenseIniFile))
            {
                Log.Error("AIP API 라이센스 정보를 찾을 수 없습니다.");
                return null;
            }

            Dictionary<string, Dictionary<string, string>> iniData = ReadIniFile(licenseIniFile);
            string ApplicationName      = iniData["License"]["ApplicationName"].Trim();
            string ApplicationVersion   = iniData["License"]["ApplicationVersion"].Trim();
            string Domain               = iniData["License"]["Domain"].Trim();
            string MipDataPath          = iniData["License"]["MipDataPath"].Trim();
            string TenantId             = iniData["License"]["TenantId"].Trim();
            string ClientId             = iniData["License"]["ClientId"].Trim();
            string EMail                = iniData["License"]["EMail"].Trim();
            string LoginType            = iniData["License"]["LoginType"].Trim();
            string SecretValue          = iniData["License"]["SecretValue"].Trim();
            string Thumbprint           = iniData["License"]["Thumbprint"].Trim();

            Log.Information("   ApplicationName: {0}", ApplicationName);
            Log.Information("ApplicationVersion: {0}", ApplicationVersion);
            Log.Information("            Domain: {0}", Domain);
            Log.Information("       MipDataPath: {0}", MipDataPath);
            Log.Information("          TenantId: {0}", TenantId);
            Log.Information("          ClientId: {0}", ClientId);
            Log.Information("             EMail: {0}", EMail);
            Log.Information("         LoginType: {0}", LoginType);
            Log.Information("       SecretValue: {0}", SecretValue);
            Log.Information("        Thumbprint: {0}", Thumbprint);

            int decResult;
            string DecTenantId = string.Empty;
            string DecClientId = string.Empty;
            string DecEMail = string.Empty;
            string DecSecretValue = string.Empty;
            string DecThumbprint = string.Empty;
            StringBuilder sDecTenantId = new StringBuilder(2048);
            StringBuilder sDecClientId = new StringBuilder(2048);
            StringBuilder sDecEMail = new StringBuilder(2048);
            StringBuilder sDecSecretValue = new StringBuilder(2048);
            StringBuilder sDecThumbprint = new StringBuilder(2048);

            decResult = AipApiDecrypt(TenantId, sDecTenantId);
            if (decResult == 0)
            {
                DecTenantId = sDecTenantId.ToString();
            }
            decResult = AipApiDecrypt(ClientId, sDecClientId);
            if (decResult == 0)
            {
                DecClientId = sDecClientId.ToString();
            }
            decResult = AipApiDecrypt(EMail, sDecEMail);
            if (decResult == 0)
            {
                DecEMail = sDecEMail.ToString();
            }
            decResult = AipApiDecrypt(SecretValue, sDecSecretValue);
            if (decResult == 0)
            {
                DecSecretValue = sDecSecretValue.ToString();
            }
            decResult = AipApiDecrypt(Thumbprint, sDecThumbprint);
            if (decResult == 0)
            {
                DecThumbprint = sDecThumbprint.ToString();
            }
            
            //Log.Information("==================================");
            //Log.Information("       DecTenantId: {0}", DecTenantId);
            //Log.Information("       DecClientId: {0}", DecClientId);
            //Log.Information("          DecEMail: {0}", DecEMail);
            //Log.Information("    DecSecretValue: {0}", DecSecretValue);
            //Log.Information("     DecThumbprint: {0}", DecThumbprint);
            //Log.Information("==================================");

            AipSettings aipSettings = new AipSettings();
            aipSettings.ProcessId = 0;

            aipSettings.Port = 0;
            aipSettings.Bindings = 0;
            aipSettings.AipPort = 0;
            aipSettings.AipBindings = 0;

            aipSettings.AppName = ApplicationName;       // 어플리케이션 이름
            aipSettings.AppVersion = ApplicationVersion; // 어플리케이션 버전
            aipSettings.ClientId = DecClientId; // 어플리케이션 ID(클라이언트 ID)
            aipSettings.TenantId = DecTenantId; // 디렉토리(테넌트) ID
            aipSettings.MipData = MipDataPath; // Mip Data Path
            aipSettings.Domain = Domain; // Domain
            aipSettings.EMail = DecEMail; // User E-Mail
            aipSettings.SecretValue = DecSecretValue; // 인증 비밀번호
            aipSettings.CertThumbPrint = DecThumbprint; // 인증서 지문
            aipSettings.LoginType = LoginType;       // 로그인 유형

            // appsettings.json 설정정보 로딩
            if (!int.TryParse(configuration["Id"], out int aipServerId))
            {
                aipServerId = 1;
            }
            aipSettings.AipServerId = aipServerId;
            if (!int.TryParse(configuration["Port"], out int port))
            {
                port = 9871;
            }
            aipSettings.Port = port;

            if (!int.TryParse(configuration["AipPort"], out int aipPort))
            {
                aipPort = 7000;
            }
            aipSettings.AipPort = aipPort;

            int coreCount = Environment.ProcessorCount;
            if (!int.TryParse(configuration["AipBindings"], out int aipBindings))
            {
                aipBindings = (coreCount * 2);
            }
            aipSettings.AipBindings = aipBindings;

            string? sourceFilePath = configuration["SourceFilePath"];
            if (sourceFilePath == null)
            {
                sourceFilePath = "c:\\Data\\Source\\";
            }
            aipSettings.SourceFileDir = sourceFilePath;
            string? targetFilePath = configuration["TargetFilePath"];
            if (targetFilePath == null)
            {
                targetFilePath = "c:\\Data\\Target\\";
            }
            aipSettings.TargetFileDir = targetFilePath;

            aipSettings.SupportedFileExt = ".doc;.docx;.docm;.dot;.dotm;.dotx;.xls;.xlt;.xlsx;.xltx;.xltm;.xlsm;.xlsb;.ppt;.pps;.pot;.pptx;.ppsx;.pptm;.ppsm;.potx;.potm;.pdf;.txt;.xml;.jpg;.jpeg;.png;.tif;.tiff;.bmp;.gif;.jpe;.jfif;.jt;";
            aipSettings.ProtectedFileExt = ".txt-.ptxt;.xml-.pxml;.jpg-.pjpg;.jpeg-.pjpeg;.png-.ppng;.tif-.ptif;.tiff-.ptiff;.bmp-.pbmp;.gif-.pgif;.jpe-.pjpe;.jfif-.pjfif;.jt-.pjt;";
            aipSettings.SetLabelId = "1098bdb0-f2bc-43d3-b9c7-e610431fc1a4";
            aipSettings.DeleteLabelId = "878173ae-cc36-4881-af57-604af868314c";
            aipSettings.SetTemplateId = "3c597cfe-ec81-4c18-add7-3867f2d3b4d4";
            aipSettings.DeleteTemplateId = "0166b75f-6a93-47f3-8fd3-e1e7c59141ab";

            return aipSettings;
        }
        catch (Exception ex)
        {
            Log.Error("AIP API 라이센스 파일 검증 오류...");
            Log.Error("AIP API 라이센스 파일 검증 오류", ex);
            return null;
        }
    }
    private static Dictionary<string, Dictionary<string, string>> ReadIniFile(string filePath)
    {
        var iniData = new Dictionary<string, Dictionary<string, string>>();
        string currentSection = null;

        foreach (string line in File.ReadLines(filePath))
        {
            if (line.StartsWith("[") && line.EndsWith("]"))
            {
                currentSection = line.Trim('[', ']');
                iniData[currentSection] = new Dictionary<string, string>();
            }
            else if (!string.IsNullOrWhiteSpace(currentSection))
            {
                string[] parts = line.Split('=');
                if (parts.Length == 2)
                {
                    string key = parts[0].Trim();
                    string value = parts[1].Trim();
                    iniData[currentSection][key] = value;
                }
            }
        }

        return iniData;
    }

    private static void WriteIniFile(string filePath, Dictionary<string, Dictionary<string, string>> iniData)
    {
        using (var writer = new StreamWriter(filePath))
        {
            foreach (var section in iniData)
            {
                writer.WriteLine($"[{section.Key}]");
                foreach (var kvp in section.Value)
                {
                    writer.WriteLine($"{kvp.Key}={kvp.Value}");
                }
            }
        }
    }
}