{

public static MenuDataTable Instance { get; set; }

public MenuDetailEntity MenuDetailEntity;

public ArticleEntity ArticleEntity;

static MenuDataTable()

{

Instance = new MenuDataTable();

}

private MenuDataTable()

{

}

public MenuDetailEntity PopulateMenu()

{

MenuDetailEntity = MenuDetailEntity ?? this.Populate();

return MenuDetailEntity;

}

private MenuDetailEntity Populate()

{

var articles = ArticleDataTable.Instance.Populate();

var menu = new MenuDetailEntity();

menu.Menus = this.GetMenus();

var subMenus = this.GetSubMenus();

var subMenuMappings = this.GetSubMenuMappings();

menu.ArticleMappings = this.GetArticleMappings();

menu.SubMenus = subMenus;

menu.SubMenuMappings = subMenuMappings;

var menuEnityToDelete = new List<MenuEntity>();

// menu.Menus = menu.Menus.Where(x=>x.ari)

foreach (var item in menu.Menus)

{

subMenuMappings.Where(x => x.MenuId == item.Id).ToList()

.ForEach(x =>

{

var submenu = subMenus.Where(y => x.SubMenuId == y.Id && articles.Any(article => article.TopicId == y.Id)).FirstOrDefault();

if (submenu != null)

{

item.SubMenus.Add(submenu);

}

});

// if not submenus is there, then remove pararent menu itself.

if (!item.SubMenus.Any())

{

menuEnityToDelete.Add(item);

}

}

menuEnityToDelete.ForEach(item =>

{

menu.Menus.Remove(item);

});

return menu;

}

private IList<ArticleMapping> GetArticleMappings()

{

var articleMappings = new List<ArticleMapping>();

articleMappings.Add(new ArticleMapping { Id = 1, ArticleName = "Visitor Pattern ReExplained", ArtilceUrlName = "Visitor-Pattern-ReExplained", FileKey = Guid.Parse("244cf499-6a89-4248-bf89-e81a964f4438"), SubMenuId = 4 });

return articleMappings;

}

private IList<MenuSubMenuMapping> GetSubMenuMappings()

{

var subMenuMappings = new List<MenuSubMenuMapping>();

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 1, SubMenuId = 1, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 1, SubMenuId = 2, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 1, SubMenuId = 3, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 1, SubMenuId = 4, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 2, SubMenuId = 5, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 2, SubMenuId = 6, DisplayOrder = 2 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 2, SubMenuId = 7, DisplayOrder = 3 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 2, SubMenuId = 8, DisplayOrder = 4 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 2, SubMenuId = 9, DisplayOrder = 5 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 10, DisplayOrder = 1 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 11, DisplayOrder = 2 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 12, DisplayOrder = 3 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 13, DisplayOrder = 4 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 14, DisplayOrder = 5 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 15, DisplayOrder = 6 });

subMenuMappings.Add(new MenuSubMenuMapping { MenuId = 3, SubMenuId = 16, DisplayOrder = 7 });

return subMenuMappings;

}

private IList<MenuEntity> GetSubMenus()

{

var menu = new List<MenuEntity>();

menu.Add(new MenuEntity { Id = 1, Name = "S.O.L.I.D Principle", UrlName = "SOLID-Principle", DisplayOrder = 1 });

menu.Add(new MenuEntity { Id = 2, Name = "Creational Patterns", UrlName = "Creational-Patterns", DisplayOrder = 2 });

menu.Add(new MenuEntity { Id = 3, Name = "Behavioral Patterns", UrlName = "Behavioral-Patterns", DisplayOrder = 3 });

menu.Add(new MenuEntity { Id = 4, Name = "Structural Patterns", UrlName = "Structural-Patterns", DisplayOrder = 4 });

menu.Add(new MenuEntity { Id = 5, Name = "Searching", UrlName = "", DisplayOrder = 1 });

menu.Add(new MenuEntity { Id = 6, Name = "Sorting", UrlName = "", DisplayOrder = 2 });

menu.Add(new MenuEntity { Id = 7, Name = "Graph", UrlName = "", DisplayOrder = 3 });

menu.Add(new MenuEntity { Id = 8, Name = "Bit", UrlName = "", DisplayOrder = 4 });

menu.Add(new MenuEntity { Id = 9, Name = "Pattern", UrlName = "", DisplayOrder = 5 });

menu.Add(new MenuEntity { Id = 10, Name = "Array", UrlName = "", DisplayOrder = 1 });

menu.Add(new MenuEntity { Id = 11, Name = "LinkedList", UrlName = "", DisplayOrder = 2 });

menu.Add(new MenuEntity { Id = 12, Name = "Stack", UrlName = "", DisplayOrder = 3 });

menu.Add(new MenuEntity { Id = 13, Name = "Queue", UrlName = "", DisplayOrder = 4 });

menu.Add(new MenuEntity { Id = 14, Name = "Tree", UrlName = "Tree", DisplayOrder = 5 });

menu.Add(new MenuEntity { Id = 15, Name = "String", UrlName = "String", DisplayOrder = 6 });

menu.Add(new MenuEntity { Id = 16, Name = "Matrix", UrlName = "Matrix", DisplayOrder = 7 });

return menu;

}

private IList<MenuEntity> GetMenus()

{

var menu = new List<MenuEntity>();

menu.Add(new MenuEntity { Id = 1, Name = "Design Principles", UrlName = "Design-Principles", DisplayOrder = 1 });

menu.Add(new MenuEntity { Id = 2, Name = "Algorithms", UrlName = "Algorithms", DisplayOrder = 2 });

menu.Add(new MenuEntity { Id = 3, Name = "Data Structure", UrlName = "Data-Structure", DisplayOrder = 3 });

menu.Add(new MenuEntity { Id = 4, Name = ".NET & C#", UrlName = "DotNet-CSharp", DisplayOrder = 4 });

menu.Add(new MenuEntity { Id = 5, Name = "Tips & Tricks", UrlName = "Tips-Tricks", DisplayOrder = 5 });

return menu;

}