/*
* This method is used by various child classes to persist data
* to file.
* A switch statement based on the enum parameter is used to populate
* a list of string arrays to pass to the data layer.
*/
protected internal void SaveToFile(ListType listType)
{
string path = null;
List <string[]> listToSave = new List <string[]>();
foreach (ShoppingListObject ShoppingList in _objects)
{
string[] row = null;
switch (listType)
{
case ListType.ShoppingList:
path = (string)App.Current.FindResource("LISTPATH");
foreach (ShoppingListElement element in ShoppingList.ShoppingList)
{
row = new string[] { element.Item, element.Category, element.Amount.ToString() };
listToSave.Add(row);
}
break;
case ListType.ItemsList:
path = (string)App.Current.FindResource("ITEMSPATH");
foreach (ShoppingListElement element in ShoppingList.ShoppingListItems)
{
row = new string[] { element.Item, element.Category };
listToSave.Add(row);
}
break;
case ListType.Categories:
path = (string)App.Current.FindResource("CATEGORIESPATH");
row = new string[] { ShoppingList.CategoryTitle };
listToSave.Add(row);
break;
case ListType.NewShoppingList:
path = (string)App.Current.FindResource("LASTLISTPATH");
foreach (ShoppingListElement element in ShoppingList.ShoppingList)
{
row = new string[] { element.Item, element.Category, element.Amount.ToString() };
listToSave.Add(row);
}
break;
}
}
WriteListToFile save = new WriteListToFile(listToSave, path);
}
private void RestoreDefaultCategories()
{
DeleteFile.Delete(ITEMSPATH);
for (int i = _objects.Count - 1; i >= 0; i--)
{
_objects.RemoveAt(i);
}
DefaultCategories defaultCategories = new DefaultCategories();
IList <string[]> defaultCats = defaultCategories.DefaultCategoryList;
WriteListToFile set = new WriteListToFile(defaultCats, CATEGORIESPATH);
foreach (string[] category in defaultCats)
{
_objects.Add(new ShoppingListObject(category[0]));
}
}
private void GetList()
{
GetListFromFile get = new GetListFromFile(CATEGORIESPATH);
IList <string[]> cats = null;
if (get.ListFromFile.Count > 0)
{
cats = get.ListFromFile;
}
else
{
DefaultCategories defaultCategories = new DefaultCategories();
cats = defaultCategories.DefaultCategoryList;
WriteListToFile set = new WriteListToFile(cats, CATEGORIESPATH);
}
foreach (string[] cat in cats)
{
categories.Add(new ShoppingListObject(cat[0]));
}
}
private void GetItems()
{
GetListFromFile get = new GetListFromFile(ITEMSPATH);
IList <string[]> ItemsList = null;
if (get.ListFromFile.Count > 0)
{
ItemsList = get.ListFromFile;
}
else
{
DefaultItemsLibrary defaultItems = new DefaultItemsLibrary();
ItemsList = defaultItems.DefaultItemsList;
WriteListToFile set = new WriteListToFile(ItemsList, ITEMSPATH);
}
foreach (string[] row in ItemsList)
{
if (string.Equals(CategoryTitle, row[1]))
{
ShoppingListItems.Add(new ShoppingListElement(row[0], row[1]));
}
}
}
