using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections;
using System.Text;
using System.Xml;

namespace DopInterfacePlatform
{
    public static class StringHelper
    {
        private static int[] numbers = new[] {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};

        /// <summary>
        /// 随机字符串数组集合
        /// </summary>
        private static readonly string[] NonceStrings = new string[] { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" };

        /// <summary>
        /// 四舍五入取整数部分
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static int StringToIntMathRound(this object @this)
        {
            string s_this = @this.ToString();
            int i_result = 0;
            if (s_this.Contains("."))
            {
                var tS =s_this.Split(".");
                i_result = Convert.ToInt32(tS[0]);
                if (Convert.ToInt32(tS[1].Substring(0, 1)) > 4)
                {
                    i_result += 1;
                }
            }
            else
            {
                i_result = Convert.ToInt32(@this);
            }

            return i_result;
        }
        
        /// <summary>
        /// 生成指定长度的随机字符串
        /// </summary>
        /// <returns></returns>
        public static string CreateNonceStr(this int stringLenght)
        {
            Random random = new Random();
            var sb = new StringBuilder();
            var length = NonceStrings.Length;
            for (int i = 0; i < stringLenght; i++)
            {
                //通过random获得的随机索引到，NonceStrings数组中获取对应数组值
                sb.Append(NonceStrings[random.Next(length - 1)]);
            }
            return sb.ToString();
        }

        
        /// <summary>
        /// 获取指定长度的随机数
        /// </summary>
        /// <returns></returns>
        public static string GetRandom(this string @prexString, int lenght)
        {
            string result = prexString;
            Random rd = new Random();
            for (int i = 0; i < lenght - prexString.Length; i++)
            {
                int RandKey = rd.Next(100, 999);
                var index = RandKey % 10;
                result += numbers[index].ToString();
            }
            return result;
        }


        /// <summary>
        /// decimal取指定位小数返回
        /// </summary>
        /// <param name="this"></param>
        /// <param name="decimals"></param>
        /// <returns></returns>
        public static decimal DecimalsFormat(this decimal @this,int decimals=2)
        {
            return Math.Round(@this, decimals);
        }

        /// <summary>
        /// 涉及到金额部分把最后的0 去掉
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static string CashFormat(this object @this)
        {
            string cashValue = @this.ToString();
            if (cashValue != null && cashValue.Contains(".")) //
            {
                while (cashValue.EndsWith("0"))
                {
                    cashValue = cashValue.Substring(0, cashValue.Length - 1);
                }

                if (cashValue.EndsWith("."))
                    cashValue = cashValue.Substring(0, cashValue.Length - 1);
            }

            return cashValue;
        }

        /// <summary>
        /// 判断是否为空
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static bool IsNullOrWhiteSpace(this string @this)
        {
            if (@this == null) return true;
            return string.IsNullOrWhiteSpace(@this.Trim()) || @this == "null";
        }

        /// <summary>
        /// tostring的另一个版本，当是null字符串时返回空串
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static string ToSelfOrNullString(this string @this)
        {
            if (@this == null) return "";
            return string.IsNullOrWhiteSpace(@this.Trim()) || @this == "null" ? "" : @this;
        }

        public static Hashtable GetProperties<T>(this T @userInfo)
        {
            Hashtable hashtable = new Hashtable();
            foreach (System.Reflection.PropertyInfo p in userInfo.GetType().GetProperties())
            {
                hashtable.Add(p.Name, p.GetValue(userInfo));
            }
            return hashtable;
        }
        /// <summary>
        /// 去掉Emoji表情
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static string RemoveEmoji(this string @this)
        {
            foreach (var strTmp in @this)
            {
                byte[] bts = Encoding.UTF32.GetBytes(strTmp.ToString());
                
                if (bts[0].ToString() == "253"&& bts[1].ToString() == "255")
                {
                    @this = @this.Replace(strTmp.ToString(), "");
                }
                    
            }
            return @this;
        }


        /// <summary>
        /// 将Json字符串转换为对应的Json对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="this"></param>
        /// <returns></returns>
        public static T ToJsonObject<T>(this string @this)
        {
            return JsonConvert.DeserializeObject<T>(@this);
        }
        public static string DateTimeOfDayWeek(this string @this)
        {
            try
            {

                return ((int) Convert.ToDateTime(@this).DayOfWeek).ToString();
            }
            catch (Exception e)
            {
                return "";
            }
        }

        public static string YuanToFen(this string money)
        {
            return Convert.ToInt64(Convert.ToDecimal(money) * 100).ToString();
        } 
        
        public static string FenToYuan(this int money)
        {
            return (Convert.ToDecimal(money)/100).ToString();
        }
        /// <summary>
        /// 将对象转换为string字符串
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static string ToJsonString(this object @this)
        {
            return JsonConvert.SerializeObject(@this);
        }

        /// <summary>
        /// 排序字段
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static Dictionary<string, object> SortDictionary(this Dictionary<string, object> @this)
        {
            Dictionary<string, object> keyValues = new Dictionary<string, object>();
            foreach (var item in @this)
            {
                if (item.Value == null || item.Value.ToString() == "")
                {
                    continue;
                }
                if(item.Key== "PatType")
                {

                }
                if (item.Value.GetType().Name == "JObject")
                {
                    JObject j_object = item.Value as JObject;
                    keyValues = keyValues.Concat(j_object.JObjectToDictionary()).ToDictionary(k => k.Key, v => v.Value);
                }
                else
                {
                    keyValues.Add(item.Key, item.Value);
                }
            }
            return keyValues.OrderBy(p => p.Key).Where(d => d.Value != null).ToDictionary(p => p.Key, o => o.Value);
        }

        /// <summary>
        /// JObject to Dictionary<string, object>
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        private static Dictionary<string, object> JObjectToDictionary(this JObject @this)
        {
            Dictionary<string, object> keyValues = new Dictionary<string, object>();
            foreach (var item in @this)
            {
                keyValues.Add(item.Key, item.Value);

                //不考虑有多层的情况
                //if (item.Value.GetType().Name == "JObject")
                //{
                //    JObject j_object = item.Value as JObject;
                //    //还有子项目
                //    keyValues = keyValues.Concat(j_object.JObjectToDictionary()).ToDictionary(k => k.Key, v => v.Value);
                //}
                //else
                //{
                //    keyValues.Add(item.Key, item.Value);
                //}
            }
            return keyValues;
        }

        /// <summary>
        /// 转换成签名串
        /// </summary>
        /// <param name="this"></param>
        /// <returns></returns>
        public static string ToSignString(this object @this)
        {
            var objName = @this.GetType().Name;
            if (objName == "DateTime")
            {
                return Convert.ToDateTime(@this).ToString("yyyy-MM-dd HH:mm:ss");
            }
            else
            {
                return @this.ToString();
            }
        }

        /// <summary>
        /// BASE64编码
        /// </summary>
        /// <param name="un_code_string"></param>
        /// <param name="code_type"></param>
        /// <returns></returns>
        public static string EncodeBase64(this string un_code_string,string code_type= "utf-8")
        {
            byte[] bytes = Encoding.GetEncoding(code_type).GetBytes(un_code_string);
            string encode;
            try
            {
                encode = Convert.ToBase64String(bytes);
            }
            catch
            {
                encode = un_code_string;
            }
            return encode;
        }
        /// <summary>
        /// BASE64解码
        /// </summary>
        /// <param name="code_string"></param>
        /// <param name="code_type"></param>
        /// <returns></returns>
        public static string DecodeBase64(this string code_string,string code_type = "utf-8")
        {
            byte[] bytes = Convert.FromBase64String(code_string);
            string decode;
            try
            {
                decode = Encoding.GetEncoding(code_type).GetString(bytes);
            }
            catch
            {
                decode = code_string;
            }
            return decode;
        }


        /// <summary>
        /// xml格式的字符串转换成对象
        /// </summary>
        /// <param name="xmlStr"></param>
        /// <returns></returns>
        public static T XmlToObject<T>(this string xmlStr) where T : new()
        {
            try
            {
                T obj = new T();
                var repType = typeof(T);
                XmlDocument document = new XmlDocument();
                document.LoadXml(xmlStr);    //加载Xml文件  
                XmlElement node = document.DocumentElement; //xml的根标签
                var properties = repType.GetProperties();
                foreach (var itemProp in properties)
                {
                    #region current type is List
                    if (itemProp.PropertyType.FullName.Contains("System.Collections.Generic.List"))
                    {
                        object array = new object();
                        var arryLength = 0;
                        var notNullLength = 0;
                        var arryType = itemProp.PropertyType.UnderlyingSystemType;

                        var objList = itemProp.GetValue(obj, null) as System.Collections.IEnumerable;
                        var enumt = objList.GetEnumerator();
                        //enumt.
                        var currentType = itemProp.PropertyType.GetGenericArguments()[0];

                        foreach (XmlNode xmlitem in node.ChildNodes)
                        {
                            if (xmlitem.Name == itemProp.Name)
                            {
                                arryLength++;
                            }
                        }
                        if (arryLength > 0)
                        {
                            var arrayModel = arryType.InvokeMember("Set", System.Reflection.BindingFlags.CreateInstance, null, array, new object[] { arryLength }) as System.Collections.IList;
                            foreach (XmlNode item in node.ChildNodes)
                            {
                                //current type is array
                                if (item.Name == itemProp.Name)
                                {
                                    var model = currentType.Assembly.CreateInstance(currentType.FullName); // arryType.GetElementType().Assembly.CreateInstance(currentType.FullName);
                                    SetArray(item.ChildNodes, model, true);
                                    arrayModel.Add(model);
                                    //arrayModel[notNullLength] = model;
                                    notNullLength++;
                                }
                            }
                            itemProp.SetValue(obj, arrayModel, null);
                        }

                        continue;
                    }
                    #endregion
                    var baseType = itemProp.PropertyType.BaseType.Name;
                    if (baseType == "Array")
                    {
                        #region Current type is Array
                        object array = new object();
                        var arryLength = 0;
                        var notNullLength = 0;
                        var arryType = itemProp.PropertyType.UnderlyingSystemType;

                        foreach (XmlNode xmlitem in node.ChildNodes)
                        {
                            if (xmlitem.Name == itemProp.Name && xmlitem.ChildNodes!=null && xmlitem.ChildNodes.Count>0)
                            {
                                arryLength++;
                            }
                        }
                        if (arryLength > 0)
                        {
                            var arrayModel = arryType.InvokeMember("Set", System.Reflection.BindingFlags.CreateInstance, null, array, new object[] { arryLength }) as System.Collections.IList;
                            foreach (XmlNode item in node.ChildNodes)
                            {
                                //current type is array
                                if (item.Name == itemProp.Name && item.ChildNodes!=null && item.ChildNodes.Count>0)
                                {
                                    var model = arryType.GetElementType().Assembly.CreateInstance(arryType.GetElementType().FullName);
                                    SetArray(item.ChildNodes, model);
                                    arrayModel[notNullLength] = model;
                                    notNullLength++;
                                }
                            }
                            itemProp.SetValue(obj, arrayModel, null);
                        }
                        #endregion
                    }
                    else
                    {
                        #region Current type isn't Array
                        foreach (XmlNode item in node.ChildNodes)
                        {
                            #region Current type is Number
                            if (itemProp.Name == item.Name && (itemProp.PropertyType == typeof(long) || itemProp.PropertyType == typeof(int) || itemProp.PropertyType == typeof(string)))
                            {
                                if (itemProp.PropertyType == typeof(int) || itemProp.PropertyType == typeof(long))
                                {
                                    if (!string.IsNullOrEmpty(item.InnerText))
                                    {
                                        if (itemProp.PropertyType == typeof(int))
                                        {
                                            itemProp.SetValue(obj, Convert.ToInt32(item.InnerText), null);
                                        }
                                        else
                                        {
                                            itemProp.SetValue(obj, Convert.ToInt64(item.InnerText), null);
                                        }

                                    }
                                    else
                                    {
                                        itemProp.SetValue(obj, 0, null);
                                    }
                                }
                                else
                                {
                                    itemProp.SetValue(obj, item.InnerText, null);
                                }
                            }
                            #endregion

                            #region Current type is Model
                            if (itemProp.PropertyType != typeof(long) && itemProp.PropertyType != typeof(string) && itemProp.PropertyType != typeof(int) && itemProp.PropertyType.Name == item.Name && item.HasChildNodes && item.FirstChild.NodeType == System.Xml.XmlNodeType.Element)
                            {
                                var modelType = itemProp.PropertyType.UnderlyingSystemType;
                                var model = modelType.Assembly.CreateInstance(modelType.FullName);
                                SetArray(item.ChildNodes, model);
                                itemProp.SetValue(obj, model, null);
                            }
                            #endregion
                        }
                        #endregion

                    }
                }
                repType = obj.GetType();
                return obj;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        #region Set array value
        private static Object SetArray(XmlNodeList xmlNodeList, object obj, bool isList = false)
        {
            try
            {
                var type = obj.GetType();
                var properties = type.GetProperties();
                foreach (var itemProp in properties)
                {
                    //if (isList)
                    if (itemProp.PropertyType.FullName.Contains("System.Collections.Generic.List"))
                    {
                        #region Current type is List
                        object array = new object();
                        var arryLength = 0;
                        var notNullLength = 0;
                        var arryType = itemProp.PropertyType.UnderlyingSystemType;
                        var currentType = itemProp.PropertyType.GetGenericArguments()[0];
                        foreach (XmlNode xmlitem in xmlNodeList)
                        {
                            if (xmlitem.Name == itemProp.Name)
                            {
                                arryLength++;
                            }
                        }

                        if (arryLength > 0)
                        {
                            var arrayModel = arryType.InvokeMember("Set", System.Reflection.BindingFlags.CreateInstance, null, array, new object[] { arryLength }) as System.Collections.IList;
                            foreach (XmlNode item in xmlNodeList)
                            {
                                //current type is array
                                if (item.Name == itemProp.Name)
                                {
                                    var model = currentType.Assembly.CreateInstance(currentType.FullName); // var model = arryType.GetElementType().Assembly.CreateInstance(arryType.GetElementType().FullName);
                                    SetArray(item.ChildNodes, model, true);
                                    arrayModel.Add(model);
                                    notNullLength++;

                                }
                            }
                            itemProp.SetValue(obj, arrayModel, null);
                        }
                        #endregion
                        return obj;
                    }


                    var baseType = itemProp.PropertyType.BaseType.Name;
                    if (baseType == "Array")
                    {
                        #region Current type is Array
                        object array = new object();
                        var arryLength = 0;
                        var notNullLength = 0;
                        var arryType = itemProp.PropertyType.UnderlyingSystemType;
                        foreach (XmlNode xmlitem in xmlNodeList)
                        {
                            if (xmlitem.Name == itemProp.Name)
                            {
                                arryLength++;
                            }
                        }

                        if (arryLength > 0)
                        {
                            var arrayModel = arryType.InvokeMember("Set", System.Reflection.BindingFlags.CreateInstance, null, array, new object[] { arryLength }) as System.Collections.IList;
                            foreach (XmlNode item in xmlNodeList)
                            {
                                //current type is array
                                if (item.Name == itemProp.Name)
                                {
                                    var model = arryType.GetElementType().Assembly.CreateInstance(arryType.GetElementType().FullName);
                                    SetArray(item.ChildNodes, model);
                                    arrayModel[notNullLength] = model;
                                    notNullLength++;

                                }
                            }
                            itemProp.SetValue(obj, arrayModel, null);
                        }
                        #endregion
                    }
                    else
                    {
                        foreach (XmlNode item in xmlNodeList)
                        {
                            #region Current type is Number
                            if (itemProp.Name == item.Name && (itemProp.PropertyType == typeof(long) || itemProp.PropertyType == typeof(int) || itemProp.PropertyType == typeof(string)))
                            {
                                if (itemProp.PropertyType == typeof(int) || itemProp.PropertyType == typeof(long))
                                {
                                    if (!string.IsNullOrEmpty(item.InnerText))
                                    {
                                        if (itemProp.PropertyType == typeof(int))
                                        {
                                            itemProp.SetValue(obj, Convert.ToInt32(item.InnerText), null);
                                        }
                                        else
                                        {
                                            itemProp.SetValue(obj, Convert.ToInt64(item.InnerText), null);
                                        }
                                    }
                                    else
                                    {
                                        itemProp.SetValue(obj, 0, null);
                                    }
                                }
                                else
                                {
                                    itemProp.SetValue(obj, item.InnerText, null);
                                }
                            }
                            #endregion

                            #region Current type is Model
                            if (itemProp.PropertyType != typeof(long) && itemProp.PropertyType != typeof(int) && itemProp.PropertyType != typeof(string) && itemProp.PropertyType.Name == item.Name && item.HasChildNodes && item.FirstChild.NodeType == System.Xml.XmlNodeType.Element)
                            {
                                var modelType = itemProp.PropertyType.UnderlyingSystemType;
                                var model = modelType.Assembly.CreateInstance(modelType.FullName);
                                SetArray(item.ChildNodes, model);
                                itemProp.SetValue(obj, model, null);
                            }
                            #endregion
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
            return obj;
        }
        #endregion
    }
}