using System;
using Exortech.NetReflector;

namespace ThoughtWorks.CruiseControl.Core.Schedules
{
	/// <summary>
	/// Mimics Java CruiseControl's PauseBuilder tag.
	/// </summary>
	[ReflectorType("pause")]
	public class PauseSchedule : ThoughtWorks.CruiseControl.Core.Schedules.IPauseSchedule
	{
		private string _day = "";
		private DayOfWeek _dow = DayOfWeek.Sunday;
		private string _startTime = "0000";
		private string _endTime = "2359";
		private int _startHours = 0;
		private int _startMins = 0;
		private int _endHours = 0;
		private int _endMins = 0;

		#region PROPERTIES
		[ReflectorProperty("day", Required=false)]
		public string Day
		{
			get { return _day; }
			set 
			{ 
				_day = value;
				try 
				{
					_dow = this.GetDayOfWeek(_day);
				}
				catch 
				{
					_day = "";
				}
			}
		}

		[ReflectorProperty("startTime")]
		public string StartTime
		{
			get { return _startTime; }
			set 
			{ 
				_startTime = value;
				_startHours = Int32.Parse(_startTime.Substring(0, 2));
				_startMins = Int32.Parse(_startTime.Substring(2, 2));
			}
		}

		[ReflectorProperty("endTime")]
		public string EndTime
		{
			get { return _endTime; }
			set 
			{ 
				_endTime = value;
				_endHours = Int32.Parse(_endTime.Substring(0, 2));
				_endMins = Int32.Parse(_endTime.Substring(2, 2));
			}
		}
		#endregion

		public bool IsPaused(DateTime now)
		{
			bool paused = false;

			if (_day == "" || _dow == now.DayOfWeek)
			{
				DateTime dtStart = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, _startHours, _startMins, 0);
				DateTime dtEnd = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, _endHours, _endMins, 0);
				if (now >= dtStart && now <= dtEnd)
					paused = true;
			}

			return paused;
		}

		private DayOfWeek GetDayOfWeek(string day)
		{
			DayOfWeek d = DayOfWeek.Sunday;
			day = day.Trim().ToLower();
			switch (day)
			{
				case "sunday":
					d = DayOfWeek.Sunday;
					break;
				case "monday":
					d = DayOfWeek.Monday;
					break;
				case "tuesday":
					d = DayOfWeek.Tuesday;
					break;
				case "wednesday":
					d = DayOfWeek.Wednesday;
					break;
				case "thursday":
					d = DayOfWeek.Thursday;
					break;
				case "friday":
					d = DayOfWeek.Friday;
					break;
				case "saturday":
					d = DayOfWeek.Saturday;
					break;
				default:
					throw new Exception("Invalid day of week!");
					break;
			}
			return d;
		}
	}
}