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

namespace GpsCardGatewayPosition.Common
{
    public class SafeType
    {

        /// <summary>
        /// Safes the int.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static int SafeInt(object o)
        {
            var returnValue = 0;
            try
            {
                returnValue = Convert.ToInt32(o);
            }
            catch
            {
                returnValue = 0;
            }

            return returnValue;
        }

        /// <summary>
        /// Safes the int.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static long SafeInt64(object o)
        {
            var returnValue = 0L;
            try
            {
                returnValue = Convert.ToInt64(o);
            }
            catch
            {
                returnValue = 0;
            }

            return returnValue;
        }
        /// <summary>
        /// Safes the string.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static string SafeString(object o)
        {
            var returnValue = "";
            try
            {
                returnValue = Convert.ToString(o);
            }
            catch
            {
                returnValue = "";
            }

            return returnValue;
        }

        /// <summary>
        /// Safes the bool.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static bool SafeBool(object o)
        {
            var returnValue = false;
            try
            {
                returnValue = Convert.ToBoolean(o);
            }
            catch
            {
                returnValue = false;
            }

            return returnValue;
        }

        public static double SafeDouble(object o)
        {
            double returnValue = 0;
            try
            {
                returnValue = Convert.ToDouble(o);
            }
            catch
            {
                returnValue = 0;
            }

            return returnValue;
        }

        /// <summary>
        /// Safes the decimal.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static decimal SafeDecimal(object o)
        {
            var returnValue = 0.0M;
            try
            {
                returnValue = Convert.ToDecimal(o);
            }
            catch
            {
                returnValue = 0.0M;
            }

            return returnValue;
        }

        /// <summary>
        /// Safes the time.
        /// </summary>
        /// <param name="o">The o.</param>
        /// <returns></returns>
        public static DateTime SafeTime(object o)
        {
            var returnValue = DateTime.Parse("1900-01-01");
            try
            {
                returnValue = Convert.ToDateTime(o);
            }
            catch
            {
                returnValue = DateTime.Parse("1900-01-01");
            }

            return returnValue;
        }

        /// <summary>
        /// OBD时间转换
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static DateTime OBDSafeTime(object o)
        {
            var returnValue = DateTime.Parse("1900-01-01");
            try
            {
                returnValue = Convert.ToDateTime(o);
            }
            catch
            {
                returnValue = DateTime.UtcNow;
            }

            return returnValue;
        }


        /// <summary>
        /// 是否为数字
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsNumber(string str)
        {
            int n;
            if (int.TryParse(str, out n))
            {
                return true;
            }
            else
            {
                return false;
            }
        }

    }
}