using System;
using System.Text;
using System.Text.RegularExpressions;

namespace HuizhongLibrary.RegularExpressions
{
    public class DataRegex
    {
        //验证日期格式
        public static bool IsDateTime(string value)
        {
            if (value == "") return true;
            try
            {
                DateTime dt = Convert.ToDateTime(value);
                if (dt > new DateTime(3000, 1, 1) || dt < new DateTime(1900, 1, 1)) return false;
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证日期格式
        /// </summary>
        /// <param name="Date"></param>
        /// <returns>{0格式正确}{1空值}{2日期格式错误}{3日期超出范围1900-1-1至3000-1-1}</returns>
        public static int IsDate(string value)
        {
            if (value == "") return 1;
            DateTime dt;
            try
            {
                dt = Convert.ToDateTime(value);
            }
            catch
            {
                return 2;
            }
            if (dt > new DateTime(3000, 1, 1) || dt < new DateTime(1900, 1, 1)) return 3;
            return 0;
        }

        /// <summary>
        /// 验证是否是整数
        /// </summary>
        /// <param name="value"></param>
        /// <param name="IsMinus">验证是否可为负,true验证不能为负,flase可为负</param>
        /// <returns></returns>
        public static bool IsNumberInteger(string value, bool IsMinus)
        {
            if (value == "") return true;
            try
            {
                if (IsMinus == false)
                {
                    Convert.ToInt32(value);
                }
                else
                {
                    if (Convert.ToInt32(value) < 0) return false;
                }
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证是否是整数
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static bool IsNumberInteger(string value, int minNumber, int maxNumber)
        {
            if (value == "") return true;
            int sl = 0;
            try
            {
                sl = Convert.ToInt32(value);
                if (sl < minNumber || sl > maxNumber) return false;
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证是否是整数
        /// </summary>
        public static bool IsNumberInteger(string value)
        {
            if (value == "") return true;
            try
            {
                Convert.ToInt32(value);
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证是否是浮点数
        /// </summary>
        public static bool IsNumberDouble(string value, Double minNumber, Double maxNumber)
        {
            if (value == "") return true;
            double sl = 0;
            try
            {
                sl = Convert.ToDouble(value);
                if (sl < minNumber || sl > maxNumber) return false;
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证是否是浮点数
        /// </summary>
        public static bool IsNumberDouble(string value)
        {
            if (value == "") return true;
            try
            {
                Convert.ToDouble(value);
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证是否是浮点数,并且小数位不能超过N位
        /// </summary>
        public static bool IsNumberDouble(string value, int len)
        {
            if (value == "") return true;
            try
            {
                Match mc = Regex.Match(value, @"\d{1,9}$|\d{1,9}[.]\d{1," + len.ToString() + "}$");
                if (value != mc.Value) return false;//如果找到的字符串不等于原字符串那么说明是错误的格式
            }
            catch
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// 验证Email地址
        /// </summary>
        public static bool IsEmail(string value)
        {
            if (value == "") return true;
            if (Regex.Matches(value, @"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$").Count == 0) return false;
            return true;
        }

        /// <summary>
        /// 验证身份证号码
        /// </summary>
        public static bool IsIdentityCard(string value)
        {
            if (value == "") return true;

            if (Regex.Matches(value, @"^\d{15}$|^\d{18}$|^\d{17}(\d|X|x)$").Count == 0) return false;
            return true;
        }

        /// <summary>
        /// 验证邮政编码
        /// </summary>
        public static bool IsPostalcode(string value)
        {
            if (value == "") return true;
            if (Regex.Matches(value, @"^\d{6}$").Count == 0) return false;
            return true;
        }

        /// <summary>
        /// 验证电话号码
        /// </summary>
        public static bool IsPhone(string value)
        {
            if (value == "") return true;
            if (Regex.Matches(value, @"^^\d{11}$|\d{8}$|0\d{2,3}-?\d{8}$").Count == 0) return false;
            return true;
        }

        /// <summary>
        /// 验证IP地址
        /// </summary>
        public static bool IsIP(string value)
        {
            if (value == "") return true;
            string[] ss = value.Split('.');
            if (ss.Length != 4) return false;
            foreach (string s in ss)
            {
                if (DataRegex.IsNumberInteger(s, 0, 255) == false) return false;
            }
            return true;
        }

        /// <summary>
        /// 验证Url地址
        /// </summary>
        public static bool IsUrlAddress(string value)
        {
            if (value == "") return true;
            if (Regex.Matches(value, @"^http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?$").Count == 0) return false;
            return true;
        }

        /// <summary>
        /// 验证时间
        /// </summary>
        public static bool IsTime(string value)
        {
            if (value == "") return true;
            if (Regex.Matches(value, @"^[0-1][0-9]:[0-5][0-9]:[0-5][0-9]$|^2[0-3]:[0-5][0-9]:[0-5][0-9]$").Count == 0) return false;
            return true;
        }
    }
}