using System;
using System.Data;
using System.Configuration;
using qminoa.DA;

namespace qminoa.BLL.PM
{
	public class TimeEntry
	{
		private int			_categoryID;
		private string		_categoryName;
		private string		_categoryShortName;
		private string		_day;
		private string		_description;
		private decimal		_duration;
		private DateTime	_entryDate;
		private int			_entryLogID;
		private int			_projectID;
		private string		_projectName;
		private int			_userID;

		public TimeEntry()
		{
		
		}
		public TimeEntry(int entryLogID)
		{
			_entryLogID = entryLogID;
		}

		public TimeEntry(int entryLogID, int userID, int ProjectID, int CategoryID, DateTime EntryDate, string Description, decimal Duration)
		{
			_entryLogID = entryLogID;
			_userID = userID;
			_projectID = ProjectID;
			_categoryID = CategoryID;
			_entryDate = EntryDate;
			_description = Description;
			_duration = Duration;
		}

		public int CategoryID
		{
			get { return _categoryID; }
			set { _categoryID = value; }
		}

		public string CategoryName
		{
			get { return _categoryName; }
			set { _categoryName = value; }
		}
		
		public string CategoryShortName
		{
			get { return _categoryShortName; }
			set { _categoryShortName = value; }
		}

		public string Day
		{
			get { return _day; }
			set { _day = value; }
		}

		public string Description
		{
			get { return _description; }
			set { _description = value; }
		}

		public decimal Duration
		{
			get { return _duration; }
			set { _duration = value; }
		}

		public DateTime EntryDate
		{
			get { return _entryDate; }
			set { _entryDate = value; }
		}
		
		public int EntryLogID 
		{
			get { return _entryLogID; }
			set { _entryLogID = value; }
		}

		public int ProjectID
		{
			get { return _projectID; }
			set { _projectID = value; }
		}

		public string ProjectName
		{
			get { return _projectName; }
			set { _projectName = value; }
		}

		public static void FillCorrectStartEndDates(DateTime selectedDate, ref DateTime startDate, ref DateTime endDate)
		{
			int firstDayOfWeek = 1;
			
			for(int i = 0; i<7; i++) 
			{
				if (Convert.ToInt32(selectedDate.AddDays(i).DayOfWeek) == firstDayOfWeek)
				{
					startDate = selectedDate.AddDays(i);
					if(i!=0)
						startDate = startDate.AddDays(-7);
					endDate = startDate.AddDays(6);
					break;
				}
			}
		}
		
		public static TimeEntriesCollection GetEntries(int queryUserID, int userID, DateTime startDate, DateTime endDate)
		{
			DataSet dsData = SqlHelper.ExecuteDataset(
				ConfigurationSettings.AppSettings["ConnectionString"], 
				"PM_ListTimeEntries", queryUserID, userID, startDate, endDate);
			TimeEntriesCollection entryList = new TimeEntriesCollection();

			foreach(DataRow row in dsData.Tables[0].Rows)
			{
				TimeEntry time = new TimeEntry();
				time.EntryLogID = Convert.ToInt32(row["EntryLogID"]);
				time.Description = row["Description"].ToString();
				time.Duration = Convert.ToDecimal(row["Duration"]);
				time.EntryDate = Convert.ToDateTime(row["EntryDate"]);
				time.ProjectID = Convert.ToInt32(row["ProjectID"]);
				time.CategoryID = Convert.ToInt32(row["CategoryID"]);
				time.CategoryName = row["CategoryName"].ToString();
				time.ProjectName = row["ProjectName"].ToString();
				time.Day = time.EntryDate.ToString("dddd");
				time.CategoryShortName = row["CatShortName"].ToString(); 

				entryList.Add(time);
			}
			return entryList;
		}

		public static DataTable GetWeek(DateTime selectedDate)
		{		
			DateTime start = DateTime.MinValue;
			DateTime end = DateTime.MinValue;
			DataTable dt = new DataTable();
			dt.Columns.Add("Day");
			dt.Columns.Add("Date");
					
			FillCorrectStartEndDates(selectedDate, ref start, ref end);
			DataRow workRow;

			for (int i = 0; i < 7; i++)
			{
				workRow = dt.NewRow();
				workRow["Day"] = Convert.ToDateTime(start.AddDays(i)).ToString("ddd");
				workRow["Date"] = start.AddDays(i);
				dt.Rows.Add(workRow);
			}
			return dt;
		}

		public static void Remove(int entryLogID)
		{
			SqlHelper.ExecuteNonQuery(ConfigurationSettings.AppSettings["ConnectionString"], "PM_DeleteTimeEntry", entryLogID);
		}

		public void Load()
		{
			DataSet ds = SqlHelper.ExecuteDataset(ConfigurationSettings.AppSettings["ConnectionString"], "PM_GetTimeEntry", _entryLogID);
			DataRow row = ds.Tables[0].Rows[0];
			_description = row["Description"].ToString();
			_duration = Convert.ToDecimal(row["Duration"]);
			_entryDate = Convert.ToDateTime(row["EntryDate"]);
			_projectID = Convert.ToInt32(row["ProjectID"]);
			_userID = Convert.ToInt32(row["UserID"]);
			_categoryID = Convert.ToInt32(row["CategoryID"]);
			_projectName = row["ProjectName"].ToString();
		}

		public bool Save()
		{
			if (_entryLogID == 0)
				return Insert();
			else
				return Update();
		}

		private bool Insert()
		{
			_entryLogID = Convert.ToInt32(SqlHelper.ExecuteScalar(ConfigurationSettings.AppSettings["ConnectionString"], "PM_AddTimeEntry", _userID, _projectID, _categoryID,
				_entryDate, _description, _duration));
			return (0 < _entryLogID);
		}
		private bool Update()
		{
			try
			{
				SqlHelper.ExecuteNonQuery(ConfigurationSettings.AppSettings["ConnectionString"], "PM_UpdateTimeEntry", _entryLogID, _userID, _projectID, _categoryID,
					_entryDate, _description, _duration);
				return true;
			}
			catch 
			{
				return false; }
		}
	}
}