// ********************************************************************************
// 	文件名字: SECSUtil
// 	文件描述: SECSUtil
// 	开发人员: Michael
// 	创建时间: 2019/11/8 0:08
//
// 	更新历史:
// 			+ 创建 SECSUtil.cs 文件. by Michael @2019/11/8 0:08
// ********************************************************************************
using Glorysoft.SECSwell;
using Newtonsoft.Json;
using System;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;

namespace Glorysoft.SECS.EQP.Utilities
{
    public static class SECSUtil
    {
        public static SECSItem CreateSECSItem(string name, eSECS_FORMAT type, object value = null)
        {
            return new SECSItem(type, name)
            {
                Value = value
            };
        }

        public static eSECS_FORMAT GetSECS_FORMAT(this object value)
        {
            if (value == null)
            {
                return eSECS_FORMAT.ASCII;
            }
            switch (value.GetType().Name)
            {
                case nameof(Byte): return eSECS_FORMAT.U1;
                case nameof(SByte): return eSECS_FORMAT.I1;
                case nameof(UInt16): return eSECS_FORMAT.U2;
                case nameof(Int16): return eSECS_FORMAT.I2;
                case nameof(UInt32): return eSECS_FORMAT.U4;
                case nameof(Int32): return eSECS_FORMAT.I4;
                case nameof(UInt64): return eSECS_FORMAT.U8;
                case nameof(Int64): return eSECS_FORMAT.I8;
                case nameof(Single): return eSECS_FORMAT.F4;
                case nameof(Double): return eSECS_FORMAT.F8;
                case nameof(String): return eSECS_FORMAT.ASCII;
                case nameof(Boolean): return eSECS_FORMAT.BOOLEAN;
                default: return eSECS_FORMAT.ASCII;
            }
        }

        public static TObject To<TObject>(this object input)
        {
            if (input == null)
            {
                return default(TObject);
            }
            var targetType = typeof(TObject);
            if (targetType.IsEnum)
            {
                return (TObject)Enum.Parse(targetType, input.ToString());
            }
            if (targetType.IsGenericType && targetType.GetGenericTypeDefinition().Equals(typeof(Nullable<>)))
            {
                if (input == null || input.ToString().Length == 0)
                {
                    return default(TObject);
                }
                NullableConverter nullableConverter = new NullableConverter(targetType);
                targetType = nullableConverter.UnderlyingType;
            }
            return (TObject)Convert.ChangeType(input, targetType);
        }

        public static TObject To<TObject>(this object input, TObject defaultValue = default(TObject))
        {
            try
            {
                return input.To<TObject>();
            }
            catch
            {
                return defaultValue;
            }
        }

        #region Xml序列化

        /// <summary>
        /// 将对象序列化为Xml字符串.
        /// </summary>
        /// <typeparam name="TObject">对象的类型.</typeparam>
        /// <param name="this">序列化的对象.</param>
        /// <param name="encoding">字符编码.</param>
        /// <returns>成功返回Xml字符串, 失败返回 null.</returns>
        public static string SerializeXml<TObject>(this TObject @this, Encoding encoding = null)
        {
            XmlSerializer serializer = new XmlSerializer(@this.GetType());
            using (MemoryStream memoryStream = new MemoryStream())
            {
                XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
                ns.Add("", "");
                using (XmlWriter writer = XmlWriter.Create(memoryStream, new XmlWriterSettings
                {
                    Indent = true,
                    Encoding = Encoding.UTF8,
                    OmitXmlDeclaration = true
                }))
                {
                    serializer.Serialize(writer, @this, ns);
                }
                memoryStream.Position = 0;
                using (StreamReader reader = new StreamReader(memoryStream, Encoding.UTF8))
                {
                    return reader.ReadToEnd();
                }
            }
        }

        /// <summary>
        /// 将Xml符串反序列化为对象.
        /// </summary>
        /// <typeparam name="TObject">对象的类型.</typeparam>
        /// <param name="this">反序列化的Xml字符串.</param>
        /// <param name="encoding">字符编码.</param>
        /// <returns>成功返回 TObject 对象, 失败返回 null.</returns>
        public static TObject DeserializeXml<TObject>(this string @this, Encoding encoding = null)
        {
            using (MemoryStream memoryStream = new MemoryStream((encoding == null ? Encoding.Default.GetBytes(@this) : encoding.GetBytes(@this))))
            {
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(TObject));
                return (TObject)xmlSerializer.Deserialize(memoryStream);
            }
        }

        #endregion Xml序列化

        public static string ToJson<T>(this T input, bool indented = true)
        {
            return JsonConvert.SerializeObject(input, indented ? Newtonsoft.Json.Formatting.Indented : Newtonsoft.Json.Formatting.None);
        }

        public static T FromJson<T>(this string input)
        {
            return JsonConvert.DeserializeObject<T>(input);
        }

        /// <summary>
        /// 对象转Get请求参数
        /// </summary>
        /// <returns></returns>
        public static string ObjectToGetParam(this object obj)
        {
            StringBuilder strBui = new StringBuilder();

            System.Reflection.PropertyInfo[] proArray = obj.GetType().GetProperties();
            foreach (System.Reflection.PropertyInfo pro in proArray)
            {
                if (strBui.Length < 1)
                {
                    strBui.Append("?");
                }
                else
                {
                    strBui.Append("&");
                }
                strBui.Append(string.Format("{0}={1}", pro.Name, pro.GetValue(obj, null)));
            }
            return strBui.ToString();
        }
    }
}