// ***********************************************************************
// Assembly         : Construction
// Author           : zjx
// Created          : 07-28-2020
//
// Last Modified By : zjx
// Last Modified On : 09-01-2020
// ***********************************************************************
// <copyright file="Validation.cs" company="jindongfang">
// Copyright (c) jindongfang. All rights reserved.
// </copyright>
// <summary></summary>
// ***********************************************************************
namespace WellWorkDataUI
{
    using System;
    using System.Text.RegularExpressions;

    /// <summary>
    /// Class Validation.
    /// </summary>
    public static class Validation
    {
        private static readonly Regex RegexNumber = new Regex(@"^[+-]?\d*[.]?\d*$", RegexOptions.Compiled);

        /// <summary>
        /// Determines whether [is date time] [the specified input].
        /// </summary>
        /// <param name="input">The input.</param>
        /// <returns><c>true</c> if [is date time] [the specified input]; otherwise, <c>false</c>.</returns>
        public static bool IsDateTime(string input)
        {
            return DateTime.TryParse(input, out DateTime _);
        }

        /// <summary>
        /// Determines whether the specified input is decimal.
        /// </summary>
        /// <param name="input">The input.</param>
        /// <returns><c>true</c> if the specified input is decimal; otherwise, <c>false</c>.</returns>
        public static bool IsDecimal(string input)
        {
            return IsNumber(input) && input.Contains(".");
        }

        /// <summary>
        /// Determines whether [is less than] [the specified input].
        /// </summary>
        /// <param name="input">The input.</param>
        /// <param name="length">The length.</param>
        /// <returns><c>true</c> if [is less than] [the specified input]; otherwise, <c>false</c>.</returns>
        public static bool IsLessThan(string input, int length)
        {
            return input.Length < length;
        }

        /// <summary>
        /// Determines whether [is not empty] [the specified input].
        /// </summary>
        /// <param name="input">The input.</param>
        /// <returns><c>true</c> if [is not empty] [the specified input]; otherwise, <c>false</c>.</returns>
        public static bool IsNotEmpty(string input)
        {
            return !string.IsNullOrWhiteSpace(input);
        }

        /// <summary>
        /// Determines whether the specified input is number.
        /// </summary>
        /// <param name="input">The input.</param>
        /// <returns><c>true</c> if the specified input is number; otherwise, <c>false</c>.</returns>
        public static bool IsNumber(string input)
        {
            return RegexNumber.IsMatch(input);
        }
    }
}