using System;
using System.Globalization;

namespace SharpCifs.Util.Sharpen
{
    public class SimpleDateFormat : DateFormat
    {
        string _format;

        CultureInfo Culture
        {
            get; set;
        }

        bool Lenient
        {
            get; set;
        }

        public SimpleDateFormat() : this("g")
        {
        }

        public SimpleDateFormat(string format) : this(format, CultureInfo.CurrentCulture)
        {
        }

        public SimpleDateFormat(string format, CultureInfo c)
        {
            Culture = c;
            this._format = format.Replace("EEE", "ddd");
            this._format = this._format.Replace("Z", "zzz");
            SetTimeZone(TimeZoneInfo.Local);
        }

        public bool IsLenient()
        {
            return Lenient;
        }

        public void SetLenient(bool lenient)
        {
            Lenient = lenient;
        }

        public override DateTime Parse(string value)
        {
            if (IsLenient())
                return DateTime.Parse(value);
            return DateTime.ParseExact(value, _format, Culture);
        }

        public override string Format(DateTime date)
        {
            date += GetTimeZone().BaseUtcOffset;
            return date.ToString(_format);
        }

        public string Format(long date)
        {
            return Extensions.MillisToDateTimeOffset(date, (int)GetTimeZone().BaseUtcOffset
                                                                             .TotalMinutes)
                             .DateTime.ToString(_format);
        }
    }
}