using Microsoft.Extensions.Options;
using MySql.Data.MySqlClient;
using Repository.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Threading.Tasks;

namespace Repository.Helper
{

    /// <summary>
    /// Database 介面
    /// </summary>
    public interface IDatabaseHelper
    {
        /// <summary>
        /// 取得連線
        /// </summary>
        /// <returns></returns>
        string GetMSSqlConnectionString();
        string GetMySqlConnectionString();
    }

    public class DatabaseHelper : IDatabaseHelper
    {
        private MySqlDBConfig _mySqlDBConfig;
        private MSSqlDBConfig _msSqlDBConfig;

        public DatabaseHelper(IOptions<DBConfig> dbConfig)
        {
            _mySqlDBConfig = dbConfig.Value.MySqlDBConfig;
            _msSqlDBConfig = dbConfig.Value.MSSqlDBConfig;
        }

        public string GetMSSqlConnectionString()
        {

            EDFunction ed = new EDFunction();

            var serverStr = ed.AESDecrypt(_msSqlDBConfig.Server);
            var databaseStr = ed.AESDecrypt(_msSqlDBConfig.Database);
            var rootStr = ed.AESDecrypt(_msSqlDBConfig.Root);
            var passwordStr = ed.AESDecrypt(_msSqlDBConfig.Password);
            var portStr = !string.IsNullOrEmpty(_msSqlDBConfig.Port) ? ed.AESDecrypt(_msSqlDBConfig.Port) : string.Empty;

            string source = !string.IsNullOrEmpty(portStr) ? string.Join(",", serverStr, portStr) : serverStr;
            var connStr = $"data source={source};initial catalog={databaseStr};User ID={rootStr};Password={passwordStr}";
            //var conn = new SqlConnection(connStr);
            return connStr;
        }

        public string GetMySqlConnectionString()
        {
            EDFunction ed = new EDFunction();

            var serverStr = ed.AESDecrypt(_mySqlDBConfig.Server); //0.201
            var portStr = ed.AESDecrypt(_mySqlDBConfig.Port); // 
            var databaseStr = ed.AESDecrypt(_mySqlDBConfig.Database); // 
            var rootStr = ed.AESDecrypt(_mySqlDBConfig.Root); // 
            var passwordStr = ed.AESDecrypt(_mySqlDBConfig.Password); // 
            //var serverStr = ed.AESEncrypt("192.168.0.201"); //192.168.0.201
            //var portStr = ed.AESEncrypt("33306"); // 33306 
            //var databaseStr = ed.AESEncrypt("bims_mitsubishi"); // bims_wsp: IgYBsgG2VLKKxFb64j7LOA==     ;      bims_mitsubishi
            //var rootStr = ed.AESEncrypt("bims"); // bims
            //var passwordStr = ed.AESEncrypt("mjmdev_BIMS2022"); // mjmdev_BIMS2022
            var connStr = $"server={serverStr};port={portStr};database={databaseStr};user={rootStr};password={passwordStr};charset=utf8;Allow User Variables=True;SslMode=None;";

            //var conn = new MySqlConnection(connStr);
            return connStr;
        }
    }
}