using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ProjectBase.Util
{
    public static class TypeValidation
    {
        /// <summary>
        /// 整数规则验证
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsInteger(string str) 
        {
            if (Regex.Match(str, "^[0-9]*$").Success)
                return true;
            else
                return false;
        }
         
        /// <summary>
        /// 数值型验证规则（1到3位小数）
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsNumerical(string str)
        {
            if (Regex.Match(str, "^[0-9]+(.[0-9]{1,3})?$").Success)
                return true;
            else
                return false;
        }

        /// <summary>
        /// 是否为日期型字符串
        /// </summary>
        /// <param name="StrSource">日期字符串(2008-05-08)</param>
        /// <returns></returns>
        public static bool IsDate(string StrSource)
        {
            return Regex.IsMatch(StrSource, @"^((((1[6-9]|[2-9]\d)\d{2})/(0?[13578]|1[02])/(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})/(0?[13456789]|1[012])/(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})/0?2/(0?[1-9]|1\d|2[0-9]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))/0?2/29/))$");
            //return Regex.IsMatch(StrSource, @"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-9]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$");
        }

        /// <summary>
        /// 是否为时间型字符串
        /// </summary>
        /// <param name="source">时间字符串(15:00:00)</param>
        /// <returns></returns>
        public static bool IsTime(string StrSource)
        {
            return Regex.IsMatch(StrSource, @"^((20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$");
        }

        /// <summary>
        /// 是否为日期+时间型字符串
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool IsDateTime(string StrSource)
        {
            return Regex.IsMatch(StrSource, @"^(((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-)) (20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$ ");
        }
    }
}