Api/Netina.Common/Extensions/StringExtensions.cs

using System.Web;

namespace Netina.Common.Extensions
{
    public static class StringExtensions
    {
        public static bool IsNullOrEmpty(this string value)
            => string.IsNullOrEmpty(value);

        public static string GetSlug(string title)
        {
            return HttpUtility.UrlEncode(title.Replace(' ', '-'));
        }
        public static string ToPriceWhitPriceType(this long price, string priceType)
        {
            return price.ToString("N0") + " " + priceType;
        }

        public static string ToPriceWhitPriceType(this decimal price, string priceType)
        {
            return price.ToString("N0") + " " + priceType;
        }

        public static string ToPriceWhitPriceType(this double price, string priceType)
        {
            return price.ToString("N0") + " " + priceType;
        }

        public static bool HasValue(this string value, bool ignoreWhiteSpace = true)
        {
            return ignoreWhiteSpace ? !string.IsNullOrWhiteSpace(value) : !string.IsNullOrEmpty(value);
        }

        public static int ToInt(this string value)
        {
            return Convert.ToInt32(value);
        }

        public static decimal ToDecimal(this string value)
        {
            return Convert.ToDecimal(value);
        }

        public static string ToNumeric(this int value)
        {
            return value.ToString("N0"); //"123,456"
        }

        public static string ToNumeric(this decimal value)
        {
            return value.ToString("N0");
        }

        public static string ToCurrency(this int value)
        {
            //fa-IR => current culture currency symbol => ریال
            //123456 => "123,123ریال"
            return value.ToString("C0");
        }

        public static string ToCurrency(this decimal value)
        {
            return value.ToString("C0");
        }

        public static string En2Fa(this string str)
        {
            return str.Replace("0", "۰")
                .Replace("1", "۱")
                .Replace("2", "۲")
                .Replace("3", "۳")
                .Replace("4", "۴")
                .Replace("5", "۵")
                .Replace("6", "۶")
                .Replace("7", "۷")
                .Replace("8", "۸")
                .Replace("9", "۹");
        }

        public static string Fa2En(this string str)
        {
            return str.Replace("۰", "0")
                .Replace("۱", "1")
                .Replace("۲", "2")
                .Replace("۳", "3")
                .Replace("۴", "4")
                .Replace("۵", "5")
                .Replace("۶", "6")
                .Replace("۷", "7")
                .Replace("۸", "8")
                .Replace("۹", "9")
                //iphone numeric
                .Replace("٠", "0")
                .Replace("١", "1")
                .Replace("٢", "2")
                .Replace("٣", "3")
                .Replace("٤", "4")
                .Replace("٥", "5")
                .Replace("٦", "6")
                .Replace("٧", "7")
                .Replace("٨", "8")
                .Replace("٩", "9");
        }

        public static string FixPersianChars(this string str)
        {
            return str.Replace("ﮎ", "ک")
                .Replace("ﮏ", "ک")
                .Replace("ﮐ", "ک")
                .Replace("ﮑ", "ک")
                .Replace("ك", "ک")
                .Replace("ي", "ی")
                .Replace(" ", " ")
                .Replace("‌", " ")
                .Replace("ھ", "ه"); //.Replace("ئ", "ی");
        }

        public static string CleanString(this string str)
        {
            return str.Trim().FixPersianChars().Fa2En().NullIfEmpty();
        }

        public static string NullIfEmpty(this string str)
        {
            return str?.Length == 0 ? null : str;
        }

        public static string GetId(int length = 8)
        {
            return Guid.NewGuid().ToString("N").Substring(0, length);
        }

        public static string ConvertTo3Digit(this string str)
        {
            str = string.Concat(str.Split(','));
            var array = str.ToCharArray();
            Array.Reverse(array);
            str = new string(array);

            var newStr = "";
            for (var i = 0; i < str.Length; i++)
            {
                newStr += str[i];
                if ((i + 1) % 3 == 0)
                    newStr += ",";
            }

            var newarray = newStr.ToCharArray();
            Array.Reverse(newarray);
            newStr = new string(newarray);
            if (newStr.Length > 0 && newStr[0] == ',')
                newStr = newStr.Substring(1);

            return newStr;
        }

        public static string ConvertToOrginal(this string str)
        {
            return string.Concat(str.Split(','));
        }

        public static string CheckPhoneNumber(string phoneNumber)
        {
            if (phoneNumber.Substring(0, 3).Contains("+98"))
                phoneNumber = phoneNumber.Replace("+98", "0");
            else if (phoneNumber.Substring(0, 2).Contains("98"))
                phoneNumber = string.Concat("0", phoneNumber.Substring(2));
            else if (phoneNumber[0] != '0')
                phoneNumber = string.Concat("0", phoneNumber);

            return phoneNumber;
        }
    }
}