//-----------------------------------------------------------------------
// <copyright file="MenuWeekModel.cs" company="BTU/IIT">
// The MIT License (MIT). Copyright (c) 2013 BTU/IIT.
// </copyright>
// <author>Stubbfel</author>
// <date>15.10.2013</date>
// <summary>Implements the menu week model class</summary>
//-----------------------------------------------------------------------
namespace CampusAppWPortalLib8.Model.Mensa
{
    using System;
    using System.Collections.ObjectModel;
    using System.Xml.Serialization;

    /// <summary> Model for menus in one week. </summary>
    /// <remarks> Stubbfel, 15.10.2013. </remarks>
    [XmlRoot("root")]
    public class MenuWeekModel
    {
        #region Members
        /// <summary> Time when the model was created. </summary>
        private readonly DateTime createTime;

        #endregion

        #region Constructor

        /// <summary> Initializes a new instance of the <see cref="MenuWeekModel" /> class. </summary>
        /// <remarks> Stubbfel, 15.10.2013. </remarks>
        public MenuWeekModel()
        {
            this.createTime = DateTime.Now;
        }

        #endregion

        #region Proberty

        /// <summary> Gets or sets the menus for the week. </summary>
        /// <value> The menus. </value>
        [XmlArray("Mealplan")]
        [XmlArrayItem("Menu")]
        public ObservableCollection<MenuModel> Menus { get; set; }

        /// <summary> Gets the creation time of the model. </summary>
        /// <value> The create time. </value>
        public DateTime CreateTime
        {
            get
            {
                return this.createTime;
            }
        }

        #endregion

        #region Methods

        /// <summary> Method calculate this day of the week, which its gets new menus. </summary>
        /// <remarks> Stubbfel, 15.10.2013. </remarks>
        /// <returns> Date of NewMenuWeekDay. </returns>
        public static DateTime CalcFirstWeekDay()
        {
            DateTime now = DateTime.Now;
            while (now.DayOfWeek != DayOfWeek.Monday)
            {
                now = now.Subtract(new TimeSpan(1, 0, 0, 0));
            }

            DateTime monday = new DateTime(now.Year, now.Month, now.Day);
            return monday;
        }

        /// <summary> Method determine holidays (Days with no meals) and add a pseudo meal. </summary>
        /// <remarks> Stubbfel, 15.10.2013. </remarks>
        /// <param name="text"> text of the pseudo meal. </param>
        public void SetHolidayCaption(string text)
        {
            MealModel holiday = new MealModel();
            holiday.MealDesc = text;
            holiday.MealId = -1;

            foreach (MenuModel menu in this.Menus)
            {
                if (menu.Meals == null || menu.Meals.Count < 1)
                {
                    if (menu.Meals == null)
                    {
                        menu.Meals = new ObservableCollection<MealModel>();
                    }

                    menu.Meals.Add(holiday);
                }
            }
        }

        #endregion
    }
}