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

namespace BPA.UIControl.Commons
{
    /// <summary>
    /// 参数验证
    /// </summary>
    public sealed class ValidateArgument
    {
        /// <summary>
        /// 非 null
        /// </summary>
        /// <param name="obj">对象</param>
        /// <param name="parameterName">参数名称</param>
        /// <exception cref="ArgumentNullException"></exception>
        public static void NotNull(object obj, string parameterName)
        {
            if (obj == null)
            {
                throw new ArgumentNullException(parameterName);
            }
        }

        /// <summary>
        /// 非 null 或空
        /// </summary>
        /// <param name="parameterValue">字符串值</param>
        /// <param name="parameterName">参数名称</param>
        /// <exception cref="ArgumentException"></exception>
        public static void NotNullOrEmpty(string parameterValue, string parameterName)
        {
            if (string.IsNullOrEmpty(parameterValue))
            {
                throw new ArgumentException(parameterName);
            }
        }

        /// <summary>
        /// 非 Null 或空类型转换
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="parameterValue">参数值</param>
        /// <param name="parameterName">参数名称</param>
        /// <returns></returns>
        /// <exception cref="ArgumentException"></exception>
        public static T NotNullOrEmptyCast<T>(object parameterValue, string parameterName)
        {
            ValidateArgument.NotNull(parameterValue, parameterName);
            if (parameterValue is T)
            {
                return (T)((object)parameterValue);
            }
            throw new ArgumentException(parameterName);
        }

        /// <summary>
        /// 类型转换
        /// </summary>
        /// <typeparam name="T">类型</typeparam>
        /// <param name="parameterValue">参数值</param>
        /// <param name="parameterName">参数名称</param>
        /// <returns></returns>
        /// <exception cref="ArgumentException"></exception>
        public static T Cast<T>(object parameterValue, string parameterName)
        {
            if (parameterValue == null || parameterValue is T)
            {
                return (T)((object)parameterValue);
            }
            throw new ArgumentException(parameterName);
        }

        /// <summary>
        /// 是否在范围内
        /// </summary>
        /// <param name="checkedExpression">检查表达式</param>
        /// <param name="parameterName">参数名称</param>
        /// <exception cref="ArgumentOutOfRangeException"></exception>
        public static void Range(bool checkedExpression, string parameterName)
        {
            if (!checkedExpression)
            {
                throw new ArgumentOutOfRangeException(parameterName);
            }
        }

        /// <summary>
        /// 是否在范围内
        /// </summary>
        /// <param name="checkedExpression">检查表达式</param>
        /// <param name="parameterName">参数名称</param>
        /// <param name="message">错误信息</param>
        /// <exception cref="ArgumentOutOfRangeException"></exception>
        public static void Range(bool checkedExpression, string parameterName, string message)
        {
            if (!checkedExpression)
            {
                throw new ArgumentOutOfRangeException(parameterName, message);
            }
        }
    }
}