using System;
using System.Collections.Generic;
using System.Configuration;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Data;

namespace DM_Weight.Common
{
    //设置冰箱温度规则
    public class TemperatureRule : ValidationRule
    {
        //冰箱温度设置区间为取自配置文件（2~8度）
        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
        {
            bool flag = false;
            string tips = string.Empty;
            try
            {
                bool bValue = decimal.TryParse(value.ToString(), out decimal mValue);
                if (!bValue)
                {
                    tips = "请输入正确的数值";
                    return new ValidationResult(flag, tips);
                }

                decimal f = Math.Abs(mValue - (int)mValue);
                if (f.ToString().Length > 3)
                {
                    tips = "温度区间设置保留小数点后一位，请检查输入";
                    return new ValidationResult(flag, tips);
                }
                string[] temperatureRange = CommonClass.ReadAppSetting("temperatureRange").Split('-');
                if (temperatureRange.Length > 0)
                {
                    int iMin = int.Parse(temperatureRange[0]);
                    int iMax = int.Parse(temperatureRange[1]);
                    if (mValue < iMin || mValue > iMax)
                    {
                        tips = $"温度区间设置为{iMin}~{iMax}度，保留小数点后一位，请检查输入";
                    }
                    else
                    {
                        flag = true;
                    }
                }
                return new ValidationResult(flag, tips);
            }
            catch (Exception ex)
            {
                tips = $"校验异常{ex.ToString()}";
                return new ValidationResult(flag, tips);
            }
        }
    }
}