ctrevarthen

    func swipeableTableViewCell(cell: SWTableViewCell!, didTriggerLeftUtilityButtonWithIndex index: Int) {
        switch index {
        case LeftUtilityButtons.Favorite.rawValue:
            if let indexPath = self.shoppingListTableView.indexPathForCell(cell) as NSIndexPath! {
                // TODO: Add Favorites functionality here
            }
        case LeftUtilityButtons.Purchase.rawValue:
            if let indexPath = self.shoppingListTableView.indexPathForCell(cell) as NSIndexPath! {
                self.shoppingListManager.markPurchasedAtIndex(indexPath.row)
            }

ctrevarthen

class Product : NSObject, NSCoding {
    
    let nameKey = "name"
    let qtyKey = "qty"
    let purchasedKey = "purchased"
    
    var name : String = ""
    var qty : Int = 0
    var purchased : Bool = false
    

ctrevarthen

    func markPurchasedAtIndex(index: Int) {
        self.products[index].purchased = true
        
        self.saveProductsToDefaults()
    }

ctrevarthen

class FavoritesManager {
    
    static let sharedInstance = FavoritesManager()
    
    let userDefaults = NSUserDefaults.standardUserDefaults()
    
    let productsKey = "com.detroitlabs.shopfast.favorites"
    
    private var products : [Product] = []
    

ctrevarthen

    func swipeableTableViewCell(cell: SWTableViewCell!, didTriggerLeftUtilityButtonWithIndex index: Int) {
        switch index {
        case LeftUtilityButtons.AddToList.rawValue:
            if let indexPath = self.favoritesTableView.indexPathForCell(cell) as NSIndexPath! {
                let fav = self.favoritesManager.productAtIndex(indexPath.row)
                self.shoppingListManager.addProduct(fav)
            }
        default:
            break
        }

ctrevarthen

    func isProductFavorited(product: Product) -> Bool {
        if let _ = self.findProductByName(product.name) {
            return true
        }
        else {
            return false
        }
    }
    
    func findProductByName(name: String) -> Product? {

ctrevarthen

    func leftButtonsForProduct(product: Product) -> [UIButton] {
        let buttons : NSMutableArray = NSMutableArray()
        
        if self.favoritesManager.isProductFavorited(product) {
            buttons.sw_addUtilityButtonWithColor(UIColor(red: 224/255, green: 224/255, blue: 103/255, alpha: 1), title: "Faved")
        }
        else {
            buttons.sw_addUtilityButtonWithBackgroundColor(UIColor.whiteColor(), title: "Fav", titleColor: UIColor.blackColor())
        }
        

ctrevarthen

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        if let cell = tableView.dequeueReusableCellWithIdentifier("Product Cell") as? ProductCell {
            let product = self.shoppingListManager.productAtIndex(indexPath.row)
            
            if product.purchased {
                let attr = [NSStrikethroughStyleAttributeName: NSUnderlineStyle.StyleSingle.rawValue]
                let attrString = NSAttributedString(string: product.name, attributes: attr)
                
                cell.productNameLabel.attributedText = attrString
            }

ctrevarthen

class FavoritesManager : ProductManager {
    
    static let sharedInstance = FavoritesManager()
    
    override init() {
        super.init()
        self.productsKey = "com.detroitlabs.shopfast.favorites"
        self.loadProductsFromDefaults()
    }

ctrevarthen

class ShoppingListManager : ProductManager {
    
    static let sharedInstance = ShoppingListManager()
    
    override init() {
        super.init()
        self.productsKey = "com.detroitlabs.shopfast.products"
        self.loadProductsFromDefaults()
    }